sdl-ios-xcode: src/video/SDL_blit

annotate src/video/SDL_blit_A.c @ 2836:b128b94ed31e

Rebind the context to the window area and update matrices when the window size changes

author	Sam Lantinga <slouken@libsdl.org>
date	Sat, 06 Dec 2008 05:23:35 +0000
parents	204be4fc2726
children	6258fa7cd300

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1240 diff changeset	3 Copyright (C) 1997-2006 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1240 diff changeset	6 modify it under the terms of the GNU Lesser General Public
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1240 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1240 diff changeset	13 Lesser General Public License for more details.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1240 diff changeset	15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1240 diff changeset	16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1240 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19 Sam Lantinga
252 e8157fcb3114 Updated the source with the correct e-mail address Sam Lantinga <slouken@libsdl.org> parents: 1 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	22 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 #include "SDL_video.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25 #include "SDL_blit.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27 /* Functions to perform alpha blended blitting */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29 /* N->1 blending with per-surface alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	30 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	31 BlitNto1SurfaceAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	33 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	34 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	35 Uint8 *src = info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	36 int srcskip = info->src_skip;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	37 Uint8 *dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	38 int dstskip = info->dst_skip;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	39 Uint8 *palmap = info->table;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	40 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	41 SDL_PixelFormat *dstfmt = info->dst_fmt;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	42 int srcbpp = srcfmt->BytesPerPixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	43
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	44 const unsigned A = info->a;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	45
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	46 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	47 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	48 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	49 {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	50 Uint32 Pixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	51 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	52 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	53 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	56 unsigned dB;
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	57 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	58 dR = dstfmt->palette->colors[*dst].r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59 dG = dstfmt->palette->colors[*dst].g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60 dB = dstfmt->palette->colors[*dst].b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	62 dR &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	63 dG &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	64 dB &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	65 /* Pack RGB into 8bit pixel */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	66 if ( palmap == NULL ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	67 *dst =((dR>>5)<<(3+2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	68 ((dG>>5)<<(2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	69 ((dB>>6)<<(0));
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	70 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	71 *dst = palmap[((dR>>5)<<(3+2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	72 ((dG>>5)<<(2)) \|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	73 ((dB>>6)<<(0))];
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	74 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	75 dst++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	76 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	77 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	78 width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	79 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	80 src += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	81 dst += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	82 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	83 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	84
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	85 /* N->1 blending with pixel alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	86 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	87 BlitNto1PixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	88 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	89 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	90 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	91 Uint8 *src = info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	92 int srcskip = info->src_skip;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	93 Uint8 *dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	94 int dstskip = info->dst_skip;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	95 Uint8 *palmap = info->table;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	96 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	97 SDL_PixelFormat *dstfmt = info->dst_fmt;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	98 int srcbpp = srcfmt->BytesPerPixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	99
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	100 /* FIXME: fix alpha bit field expansion here too? */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	101 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	102 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	103 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	104 {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	105 Uint32 Pixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	106 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	107 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	108 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	109 unsigned sA;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	110 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	111 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	112 unsigned dB;
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	113 DISEMBLE_RGBA(src,srcbpp,srcfmt,Pixel,sR,sG,sB,sA);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	114 dR = dstfmt->palette->colors[*dst].r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	115 dG = dstfmt->palette->colors[*dst].g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	116 dB = dstfmt->palette->colors[*dst].b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	117 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	118 dR &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	119 dG &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	120 dB &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	121 /* Pack RGB into 8bit pixel */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	122 if ( palmap == NULL ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	123 *dst =((dR>>5)<<(3+2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	124 ((dG>>5)<<(2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	125 ((dB>>6)<<(0));
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	126 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	127 *dst = palmap[((dR>>5)<<(3+2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	128 ((dG>>5)<<(2)) \|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	129 ((dB>>6)<<(0)) ];
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	130 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	131 dst++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	132 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	133 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	134 width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	135 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	136 src += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	137 dst += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	138 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	139 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	140
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141 /* colorkeyed N->1 blending with per-surface alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	142 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	143 BlitNto1SurfaceAlphaKey(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	144 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	145 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	146 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	147 Uint8 *src = info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	148 int srcskip = info->src_skip;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	149 Uint8 *dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	150 int dstskip = info->dst_skip;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	151 Uint8 *palmap = info->table;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	152 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	153 SDL_PixelFormat *dstfmt = info->dst_fmt;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	154 int srcbpp = srcfmt->BytesPerPixel;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	155 Uint32 ckey = info->colorkey;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	156
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	157 const int A = info->a;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	158
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	159 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	160 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	161 DUFFS_LOOP(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	162 {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	163 Uint32 Pixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	164 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	165 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	166 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	167 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	168 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	169 unsigned dB;
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	170 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	171 if ( Pixel != ckey ) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	172 dR = dstfmt->palette->colors[*dst].r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	173 dG = dstfmt->palette->colors[*dst].g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	174 dB = dstfmt->palette->colors[*dst].b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	175 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	176 dR &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	177 dG &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	178 dB &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	179 /* Pack RGB into 8bit pixel */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	180 if ( palmap == NULL ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	181 *dst =((dR>>5)<<(3+2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	182 ((dG>>5)<<(2)) \|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	183 ((dB>>6)<<(0));
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	184 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	185 *dst = palmap[((dR>>5)<<(3+2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	186 ((dG>>5)<<(2)) \|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	187 ((dB>>6)<<(0)) ];
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	188 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	189 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	190 dst++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	191 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	192 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	193 width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	194 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	195 src += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	196 dst += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	197 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	198 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	199
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	200 #ifdef __MMX__
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	201
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	202 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	203 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	204 BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo * info)
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	205 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	206 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	207 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	208 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	209 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	210 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	211 int dstskip = info->dst_skip >> 2;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	212 Uint32 dalpha = info->dst_fmt->Amask;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	213
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	214 __m64 src1, src2, dst1, dst2, lmask, hmask, dsta;
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	215
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	216 hmask = _mm_set_pi32(0x00fefefe, 0x00fefefe); /* alpha128 mask -> hmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	217 lmask = _mm_set_pi32(0x00010101, 0x00010101); /* !alpha128 mask -> lmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	218 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	219
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	220 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	221 int n = width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	222 if (n & 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	223 Uint32 s = *srcp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	224 Uint32 d = *dstp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	225 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	226 + (s & d & 0x00010101)) \| dalpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	227 n--;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	228 }
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	229
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	230 for (n >>= 1; n > 0; --n) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	231 dst1 = (__m64 ) dstp; /* 2 x dst -> dst1(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	232 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	233
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	234 src1 = (__m64 ) srcp; /* 2 x src -> src1(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	235 src2 = src1; /* 2 x src -> src2(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	236
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	237 dst2 = _mm_and_si64(dst2, hmask); /* dst & mask -> dst2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	238 src2 = _mm_and_si64(src2, hmask); /* src & mask -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	239 src2 = _mm_add_pi32(src2, dst2); /* dst2 + src2 -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	240 src2 = _mm_srli_pi32(src2, 1); /* src2 >> 1 -> src2 */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	241
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	242 dst1 = _mm_and_si64(dst1, src1); /* src & dst -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	243 dst1 = _mm_and_si64(dst1, lmask); /* dst1 & !mask -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	244 dst1 = _mm_add_pi32(dst1, src2); /* src2 + dst1 -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	245 dst1 = _mm_or_si64(dst1, dsta); /* dsta(full alpha) \| dst1 -> dst1 */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	246
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	247 (__m64 ) dstp = dst1; /* dst1 -> 2 x dst pixels */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	248 dstp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	249 srcp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	250 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	251
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	252 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	253 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	254 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	255 _mm_empty();
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	256 }
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	257
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	258 /* fast RGB888->(A)RGB888 blending with surface alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	259 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	260 BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo * info)
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	261 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	262 SDL_PixelFormat *df = info->dst_fmt;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	263 Uint32 chanmask = df->Rmask \| df->Gmask \| df->Bmask;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	264 unsigned alpha = info->a;
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	265
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	266 if (alpha == 128 && (df->Rmask \| df->Gmask \| df->Bmask) == 0x00FFFFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	267 /* only call a128 version when R,G,B occupy lower bits */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	268 BlitRGBtoRGBSurfaceAlpha128MMX(info);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	269 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	270 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	271 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	272 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	273 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	274 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	275 int dstskip = info->dst_skip >> 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	276 Uint32 dalpha = df->Amask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	277 Uint32 amult;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	278
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	279 __m64 src1, src2, dst1, dst2, mm_alpha, mm_zero, dsta;
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	280
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	281 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	282 /* form the alpha mult */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	283 amult = alpha \| (alpha << 8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	284 amult = amult \| (amult << 16);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	285 chanmask =
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2291 diff changeset	286 (0xff << df->Rshift) \| (0xff << df->
204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2291 diff changeset	287 Gshift) \| (0xff << df->Bshift);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	288 mm_alpha = _mm_set_pi32(0, amult & chanmask); /* 0000AAAA -> mm_alpha, minus 1 chan */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	289 mm_alpha = _mm_unpacklo_pi8(mm_alpha, mm_zero); /* 0A0A0A0A -> mm_alpha, minus 1 chan */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	290 /* at this point mm_alpha can be 000A0A0A or 0A0A0A00 or another combo */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	291 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	292
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	293 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	294 int n = width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	295 if (n & 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	296 /* One Pixel Blend */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	297 src2 = _mm_cvtsi32_si64(srcp); / src(ARGB) -> src2 (0000ARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	298 src2 = _mm_unpacklo_pi8(src2, mm_zero); /* 0A0R0G0B -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	299
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	300 dst1 = _mm_cvtsi32_si64(dstp); / dst(ARGB) -> dst1 (0000ARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	301 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	302
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	303 src2 = _mm_sub_pi16(src2, dst1); /* src2 - dst2 -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	304 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	305 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	306 dst1 = _mm_add_pi8(src2, dst1); /* src2 + dst1 -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	307
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	308 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	309 dst1 = _mm_or_si64(dst1, dsta); /* dsta \| dst1 -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	310 dstp = _mm_cvtsi64_si32(dst1); / dst1 -> pixel */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	311
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	312 ++srcp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	313 ++dstp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	314
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	315 n--;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	316 }
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	317
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	318 for (n >>= 1; n > 0; --n) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	319 /* Two Pixels Blend */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	320 src1 = (__m64 ) srcp; /* 2 x src -> src1(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	321 src2 = src1; /* 2 x src -> src2(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	322 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* low - 0A0R0G0B -> src1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	323 src2 = _mm_unpackhi_pi8(src2, mm_zero); /* high - 0A0R0G0B -> src2 */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	324
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	325 dst1 = (__m64 ) dstp; /* 2 x dst -> dst1(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	326 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	327 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* low - 0A0R0G0B -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	328 dst2 = _mm_unpackhi_pi8(dst2, mm_zero); /* high - 0A0R0G0B -> dst2 */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	329
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	330 src1 = _mm_sub_pi16(src1, dst1); /* src1 - dst1 -> src1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	331 src1 = _mm_mullo_pi16(src1, mm_alpha); /* src1 * alpha -> src1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	332 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	333 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst1) -> dst1 */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	334
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	335 src2 = _mm_sub_pi16(src2, dst2); /* src2 - dst2 -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	336 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	337 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	338 dst2 = _mm_add_pi8(src2, dst2); /* src2 + dst2(dst2) -> dst2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	339
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	340 dst1 = _mm_packs_pu16(dst1, dst2); /* 0A0R0G0B(res1), 0A0R0G0B(res2) -> dst1(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	341 dst1 = _mm_or_si64(dst1, dsta); /* dsta \| dst1 -> dst1 */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	342
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	343 (__m64 ) dstp = dst1; /* dst1 -> 2 x pixel */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	344
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	345 srcp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	346 dstp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	347 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	348 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	349 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	350 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	351 _mm_empty();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	352 }
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	353 }
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	354
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	355 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	356 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	357 BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo * info)
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	358 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	359 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	360 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	361 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	362 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	363 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	364 int dstskip = info->dst_skip >> 2;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	365 SDL_PixelFormat *sf = info->src_fmt;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	366 Uint32 chanmask = sf->Rmask \| sf->Gmask \| sf->Bmask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	367 Uint32 amask = sf->Amask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	368 Uint32 ashift = sf->Ashift;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	369 Uint64 multmask;
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	370
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	371 __m64 src1, dst1, mm_alpha, mm_zero, dmask;
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	372
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	373 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
2260 202ddfd1cfb1 indent Sam Lantinga <slouken@libsdl.org> parents: 2257 diff changeset	374 multmask = 0xFFFF;
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	375 multmask <<= (ashift * 2);
17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	376 multmask = ~multmask;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	377 dmask = (__m64 ) & multmask; /* dst alpha mask -> dmask */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	378
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	379 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	380 /* INDENT-OFF */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	381 DUFFS_LOOP4({
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	382 Uint32 alpha = *srcp & amask;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	383 if (alpha == 0) {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	384 /* do nothing */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	385 } else if (alpha == amask) {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	386 /* opaque alpha -- copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	387 dstp = (srcp & chanmask) \| (*dstp & ~chanmask);
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	388 } else {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	389 src1 = _mm_cvtsi32_si64(srcp); / src(ARGB) -> src1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	390 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	391
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	392 dst1 = _mm_cvtsi32_si64(dstp); / dst(ARGB) -> dst1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	393 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	394
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	395 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	396 mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	397 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	398 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	399 mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	400
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	401 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	402 src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	403 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src1 - dst1) * alpha -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	404 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	405 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1 -> dst1(0A0R0G0B) */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	406 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	407
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	408 dstp = _mm_cvtsi64_si32(dst1); / dst1 -> pixel */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	409 }
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	410 ++srcp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	411 ++dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	412 }, width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	413 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	414 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	415 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	416 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	417 _mm_empty();
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	418 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	419
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	420 #endif /* __MMX__ */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	421
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	422 #if SDL_ALTIVEC_BLITTERS
1795 398ac0f88e4d Fixed bug #220 Sam Lantinga <slouken@libsdl.org> parents: 1617 diff changeset	423 #if __MWERKS__
398ac0f88e4d Fixed bug #220 Sam Lantinga <slouken@libsdl.org> parents: 1617 diff changeset	424 #pragma altivec_model on
398ac0f88e4d Fixed bug #220 Sam Lantinga <slouken@libsdl.org> parents: 1617 diff changeset	425 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	426 #if HAVE_ALTIVEC_H
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	427 #include <altivec.h>
1175 867f521591e5 Fixed Altivec support on Mac OS X. Ryan C. Gordon <icculus@icculus.org> parents: 1162 diff changeset	428 #endif
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	429 #include <assert.h>
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	430
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	431 #if (defined(__MACOSX__) && (__GNUC__ < 4))
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	432 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	433 (vector unsigned char) ( a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p )
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	434 #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	435 (vector unsigned short) ( a,b,c,d,e,f,g,h )
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	436 #else
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	437 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	438 (vector unsigned char) { a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	439 #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	440 (vector unsigned short) { a,b,c,d,e,f,g,h }
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	441 #endif
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	442
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	443 #define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	444 #define VECPRINT(msg, v) do { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	445 vector unsigned int tmpvec = (vector unsigned int)(v); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	446 unsigned int vp = (unsigned int )&tmpvec; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	447 printf("%s = %08X %08X %08X %08X\n", msg, vp[0], vp[1], vp[2], vp[3]); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	448 } while (0)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	449
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	450 /* the permuation vector that takes the high bytes out of all the appropriate shorts
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	451 (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	452 0x00, 0x10, 0x02, 0x12,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	453 0x04, 0x14, 0x06, 0x16,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	454 0x08, 0x18, 0x0A, 0x1A,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	455 0x0C, 0x1C, 0x0E, 0x1E );
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	456 */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	457 #define VEC_MERGE_PERMUTE() (vec_add(vec_lvsl(0, (int*)NULL), (vector unsigned char)vec_splat_u16(0x0F)))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	458 #define VEC_U32_24() (vec_add(vec_splat_u32(12), vec_splat_u32(12)))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	459 #define VEC_ALPHA_MASK() ((vector unsigned char)vec_sl((vector unsigned int)vec_splat_s8(-1), VEC_U32_24()))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	460 #define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	461 ? vec_lvsl(0, src) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	462 : vec_add(vec_lvsl(8, src), vec_splat_u8(8)))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	463
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	464
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	465 #define VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1_16, v8_16) do { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	466 /* vtemp1 contains source AAGGAAGGAAGGAAGG */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	467 vector unsigned short vtemp1 = vec_mule(vs, valpha); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	468 /* vtemp2 contains source RRBBRRBBRRBBRRBB */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	469 vector unsigned short vtemp2 = vec_mulo(vs, valpha); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	470 /* valpha2 is 255-alpha */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	471 vector unsigned char valpha2 = vec_nor(valpha, valpha); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	472 /* vtemp3 contains dest AAGGAAGGAAGGAAGG */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	473 vector unsigned short vtemp3 = vec_mule(vd, valpha2); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	474 /* vtemp4 contains dest RRBBRRBBRRBBRRBB */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	475 vector unsigned short vtemp4 = vec_mulo(vd, valpha2); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	476 /* add source and dest */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	477 vtemp1 = vec_add(vtemp1, vtemp3); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	478 vtemp2 = vec_add(vtemp2, vtemp4); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	479 /* vtemp1 = (vtemp1 + 1) + ((vtemp1 + 1) >> 8) */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	480 vtemp1 = vec_add(vtemp1, v1_16); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	481 vtemp3 = vec_sr(vtemp1, v8_16); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	482 vtemp1 = vec_add(vtemp1, vtemp3); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	483 /* vtemp2 = (vtemp2 + 1) + ((vtemp2 + 1) >> 8) */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	484 vtemp2 = vec_add(vtemp2, v1_16); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	485 vtemp4 = vec_sr(vtemp2, v8_16); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	486 vtemp2 = vec_add(vtemp2, vtemp4); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	487 /* (>>8) and get ARGBARGBARGBARGB */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	488 vd = (vector unsigned char)vec_perm(vtemp1, vtemp2, mergePermute); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	489 } while (0)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	490
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	491 /* Calculate the permute vector used for 32->32 swizzling */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	492 static vector unsigned char
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	493 calc_swizzle32(const SDL_PixelFormat * srcfmt, const SDL_PixelFormat * dstfmt)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	494 {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	495 /*
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	496 * We have to assume that the bits that aren't used by other
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	497 * colors is alpha, and it's one complete byte, since some formats
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	498 * leave alpha with a zero mask, but we should still swizzle the bits.
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	499 */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	500 /* ARGB */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	501 const static struct SDL_PixelFormat default_pixel_format = {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	502 NULL, 0, 0,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	503 0, 0, 0, 0,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	504 16, 8, 0, 24,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	505 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000,
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	506 0, 0
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	507 };
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	508 if (!srcfmt) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	509 srcfmt = &default_pixel_format;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	510 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	511 if (!dstfmt) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	512 dstfmt = &default_pixel_format;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	513 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	514 const vector unsigned char plus = VECUINT8_LITERAL(0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	515 0x04, 0x04, 0x04, 0x04,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	516 0x08, 0x08, 0x08, 0x08,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	517 0x0C, 0x0C, 0x0C,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	518 0x0C);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	519 vector unsigned char vswiz;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	520 vector unsigned int srcvec;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	521 #define RESHIFT(X) (3 - ((X) >> 3))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	522 Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	523 Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	524 Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	525 Uint32 amask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	526 /* Use zero for alpha if either surface doesn't have alpha */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	527 if (dstfmt->Amask) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	528 amask =
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2291 diff changeset	529 ((srcfmt->Amask) ? RESHIFT(srcfmt->
204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2291 diff changeset	530 Ashift) : 0x10) << (dstfmt->Ashift);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	531 } else {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	532 amask =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	533 0x10101010 & ((dstfmt->Rmask \| dstfmt->Gmask \| dstfmt->Bmask) ^
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	534 0xFFFFFFFF);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	535 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	536 #undef RESHIFT
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	537 ((unsigned int ) (char ) &srcvec)[0] = (rmask \| gmask \| bmask \| amask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	538 vswiz = vec_add(plus, (vector unsigned char) vec_splat(srcvec, 0));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	539 return (vswiz);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	540 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	541
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	542 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	543 Blit32to565PixelAlphaAltivec(SDL_BlitInfo * info)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	544 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	545 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	546 Uint8 src = (Uint8 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	547 int srcskip = info->src_skip;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	548 Uint8 dst = (Uint8 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	549 int dstskip = info->dst_skip;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	550 SDL_PixelFormat *srcfmt = info->src_fmt;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	551
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	552 vector unsigned char v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	553 vector unsigned short v8_16 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	554 vector unsigned short v1_16 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	555 vector unsigned short v2_16 = vec_splat_u16(2);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	556 vector unsigned short v3_16 = vec_splat_u16(3);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	557 vector unsigned int v8_32 = vec_splat_u32(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	558 vector unsigned int v16_32 = vec_add(v8_32, v8_32);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	559 vector unsigned short v3f =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	560 VECUINT16_LITERAL(0x003f, 0x003f, 0x003f, 0x003f,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	561 0x003f, 0x003f, 0x003f, 0x003f);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	562 vector unsigned short vfc =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	563 VECUINT16_LITERAL(0x00fc, 0x00fc, 0x00fc, 0x00fc,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	564 0x00fc, 0x00fc, 0x00fc, 0x00fc);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	565
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	566 /*
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	567 0x10 - 0x1f is the alpha
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	568 0x00 - 0x0e evens are the red
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	569 0x01 - 0x0f odds are zero
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	570 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	571 vector unsigned char vredalpha1 = VECUINT8_LITERAL(0x10, 0x00, 0x01, 0x01,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	572 0x10, 0x02, 0x01, 0x01,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	573 0x10, 0x04, 0x01, 0x01,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	574 0x10, 0x06, 0x01,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	575 0x01);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	576 vector unsigned char vredalpha2 =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	577 (vector unsigned char) (vec_add((vector unsigned int) vredalpha1,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	578 vec_sl(v8_32, v16_32))
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	579 );
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	580 /*
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	581 0x00 - 0x0f is ARxx ARxx ARxx ARxx
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	582 0x11 - 0x0f odds are blue
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	583 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	584 vector unsigned char vblue1 = VECUINT8_LITERAL(0x00, 0x01, 0x02, 0x11,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	585 0x04, 0x05, 0x06, 0x13,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	586 0x08, 0x09, 0x0a, 0x15,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	587 0x0c, 0x0d, 0x0e, 0x17);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	588 vector unsigned char vblue2 =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	589 (vector unsigned char) (vec_add((vector unsigned int) vblue1, v8_32)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	590 );
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	591 /*
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	592 0x00 - 0x0f is ARxB ARxB ARxB ARxB
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	593 0x10 - 0x0e evens are green
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	594 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	595 vector unsigned char vgreen1 = VECUINT8_LITERAL(0x00, 0x01, 0x10, 0x03,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	596 0x04, 0x05, 0x12, 0x07,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	597 0x08, 0x09, 0x14, 0x0b,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	598 0x0c, 0x0d, 0x16, 0x0f);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	599 vector unsigned char vgreen2 =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	600 (vector unsigned
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	601 char) (vec_add((vector unsigned int) vgreen1, vec_sl(v8_32, v8_32))
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	602 );
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	603 vector unsigned char vgmerge = VECUINT8_LITERAL(0x00, 0x02, 0x00, 0x06,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	604 0x00, 0x0a, 0x00, 0x0e,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	605 0x00, 0x12, 0x00, 0x16,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	606 0x00, 0x1a, 0x00, 0x1e);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	607 vector unsigned char mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	608 vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	609 vector unsigned char valphaPermute =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	610 vec_and(vec_lvsl(0, (int *) NULL), vec_splat_u8(0xC));
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	611
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	612 vector unsigned short vf800 = (vector unsigned short) vec_splat_u8(-7);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	613 vf800 = vec_sl(vf800, vec_splat_u16(8));
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	614
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	615 while (height--) {
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	616 int extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	617 vector unsigned char valigner;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	618 vector unsigned char vsrc;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	619 vector unsigned char voverflow;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	620 int width = info->dst_w;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	621
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	622 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	623 while (condition) { \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	624 Uint32 Pixel; \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	625 unsigned sR, sG, sB, dR, dG, dB, sA; \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	626 DISEMBLE_RGBA(src, 4, srcfmt, Pixel, sR, sG, sB, sA); \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	627 if(sA) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	628 unsigned short dstpixel = ((unsigned short )dst); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	629 dR = (dstpixel >> 8) & 0xf8; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	630 dG = (dstpixel >> 3) & 0xfc; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	631 dB = (dstpixel << 3) & 0xf8; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	632 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	633 ((unsigned short )dst) = ( \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	634 ((dR & 0xf8) << 8) \| ((dG & 0xfc) << 3) \| (dB >> 3) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	635 ); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	636 } \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	637 src += 4; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	638 dst += 2; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	639 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	640 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	641 ONE_PIXEL_BLEND((UNALIGNED_PTR(dst)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	642 extrawidth = (width % 8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	643 valigner = VEC_ALIGNER(src);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	644 vsrc = (vector unsigned char) vec_ld(0, src);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	645 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	646 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	647 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	648 vector unsigned char vsrc1, vsrc2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	649 vector unsigned char vdst1, vdst2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	650 vector unsigned short vR, vG, vB;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	651 vector unsigned short vpixel, vrpixel, vgpixel, vbpixel;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	652
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	653 /* Load 8 pixels from src as ARGB */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	654 voverflow = (vector unsigned char) vec_ld(15, src);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	655 vsrc = vec_perm(vsrc, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	656 vsrc1 = vec_perm(vsrc, vsrc, vpermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	657 src += 16;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	658 vsrc = (vector unsigned char) vec_ld(15, src);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	659 voverflow = vec_perm(voverflow, vsrc, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	660 vsrc2 = vec_perm(voverflow, voverflow, vpermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	661 src += 16;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	662
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	663 /* Load 8 pixels from dst as XRGB */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	664 voverflow = vec_ld(0, dst);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	665 vR = vec_and((vector unsigned short) voverflow, vf800);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	666 vB = vec_sl((vector unsigned short) voverflow, v3_16);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	667 vG = vec_sl(vB, v2_16);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	668 vdst1 =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	669 (vector unsigned char) vec_perm((vector unsigned char) vR,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	670 (vector unsigned char) vR,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	671 vredalpha1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	672 vdst1 = vec_perm(vdst1, (vector unsigned char) vB, vblue1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	673 vdst1 = vec_perm(vdst1, (vector unsigned char) vG, vgreen1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	674 vdst2 =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	675 (vector unsigned char) vec_perm((vector unsigned char) vR,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	676 (vector unsigned char) vR,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	677 vredalpha2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	678 vdst2 = vec_perm(vdst2, (vector unsigned char) vB, vblue2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	679 vdst2 = vec_perm(vdst2, (vector unsigned char) vG, vgreen2);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	680
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	681 /* Alpha blend 8 pixels as ARGB */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	682 valpha = vec_perm(vsrc1, v0, valphaPermute);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	683 VEC_MULTIPLY_ALPHA(vsrc1, vdst1, valpha, mergePermute, v1_16,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	684 v8_16);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	685 valpha = vec_perm(vsrc2, v0, valphaPermute);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	686 VEC_MULTIPLY_ALPHA(vsrc2, vdst2, valpha, mergePermute, v1_16,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	687 v8_16);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	688
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	689 /* Convert 8 pixels to 565 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	690 vpixel = (vector unsigned short) vec_packpx((vector unsigned int)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	691 vdst1,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	692 (vector unsigned int)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	693 vdst2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	694 vgpixel = (vector unsigned short) vec_perm(vdst1, vdst2, vgmerge);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	695 vgpixel = vec_and(vgpixel, vfc);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	696 vgpixel = vec_sl(vgpixel, v3_16);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	697 vrpixel = vec_sl(vpixel, v1_16);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	698 vrpixel = vec_and(vrpixel, vf800);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	699 vbpixel = vec_and(vpixel, v3f);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	700 vdst1 =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	701 vec_or((vector unsigned char) vrpixel,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	702 (vector unsigned char) vgpixel);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	703 vdst1 = vec_or(vdst1, (vector unsigned char) vbpixel);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	704
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	705 /* Store 8 pixels */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	706 vec_st(vdst1, 0, dst);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	707
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	708 width -= 8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	709 dst += 16;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	710 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	711 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	712 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	713 src += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	714 dst += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	715 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	716 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	717
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	718 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	719 Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo * info)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	720 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	721 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	722 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	723 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	724 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	725 int dstskip = info->dst_skip >> 2;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	726 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	727 SDL_PixelFormat *dstfmt = info->dst_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	728 unsigned sA = info->a;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	729 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	730 Uint32 rgbmask = srcfmt->Rmask \| srcfmt->Gmask \| srcfmt->Bmask;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	731 Uint32 ckey = info->colorkey;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	732 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	733 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	734 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	735 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	736 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	737 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	738 vector unsigned char vbits;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	739 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	740 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	741 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	742 vector unsigned int vckey;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	743 vector unsigned int vrgbmask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	744
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	745 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	746 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	747 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	748 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	749
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	750 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	751 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	752
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	753 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	754 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	755 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	756
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	757 /* set a vector full of alpha and 255-alpha */
2291 dc3dd3a0bf02 Christian Walther fixed bug #529 Sam Lantinga <slouken@libsdl.org> parents: 2267 diff changeset	758 ((unsigned char *) &valpha)[0] = sA;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	759 valpha = vec_splat(valpha, 0);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	760 vbits = (vector unsigned char) vec_splat_s8(-1);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	761
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	762 ckey &= rgbmask;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	763 ((unsigned int ) (char ) &vckey)[0] = ckey;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	764 vckey = vec_splat(vckey, 0);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	765 ((unsigned int ) (char ) &vrgbmask)[0] = rgbmask;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	766 vrgbmask = vec_splat(vrgbmask, 0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	767
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	768 while (height--) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	769 int width = info->dst_w;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	770 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	771 while (condition) { \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	772 Uint32 Pixel; \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	773 unsigned sR, sG, sB, dR, dG, dB; \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	774 RETRIEVE_RGB_PIXEL(((Uint8 *)srcp), 4, Pixel); \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	775 if(sA && Pixel != ckey) { \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	776 RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	777 DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	778 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	779 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	780 } \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	781 dstp++; \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	782 srcp++; \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	783 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	784 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	785 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	786 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	787 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	788 vector unsigned char valigner = VEC_ALIGNER(srcp);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	789 vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	790 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	791 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	792 vector unsigned char vsel;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	793 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	794 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	795 vector unsigned char vd_orig;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	796
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	797 /* s = srcp /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	798 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	799 vs = vec_perm(vs, voverflow, valigner);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	800
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	801 /* vsel is set for items that match the key */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	802 vsel =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	803 (vector unsigned char) vec_and((vector unsigned int) vs,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	804 vrgbmask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	805 vsel = (vector unsigned char) vec_cmpeq((vector unsigned int)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	806 vsel, vckey);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	807
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	808 /* permute to source format */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	809 vs = vec_perm(vs, valpha, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	810
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	811 /* d = dstp /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	812 vd = (vector unsigned char) vec_ld(0, dstp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	813 vd_orig = vd = vec_perm(vd, v0, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	814
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	815 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	816
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	817 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	818 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	819
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	820 /* mask out color key */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	821 vd = vec_sel(vd, vd_orig, vsel);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	822
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	823 /* permute to dest format */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	824 vd = vec_perm(vd, vbits, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	825
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	826 /* dstp = res /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	827 vec_st((vector unsigned int) vd, 0, dstp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	828
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	829 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	830 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	831 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	832 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	833 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	834 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	835 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	836 #undef ONE_PIXEL_BLEND
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	837
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	838 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	839 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	840 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	841 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	842
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	843
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	844 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	845 Blit32to32PixelAlphaAltivec(SDL_BlitInfo * info)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	846 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	847 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	848 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	849 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	850 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	851 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	852 int dstskip = info->dst_skip >> 2;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	853 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	854 SDL_PixelFormat *dstfmt = info->dst_fmt;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	855 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	856 vector unsigned char valphaPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	857 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	858 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	859 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	860 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	861 vector unsigned char vpixelmask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	862 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	863 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	864 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	865
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	866 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	867 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	868 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	869 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	870 valphamask = VEC_ALPHA_MASK();
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	871 valphaPermute = vec_and(vec_lvsl(0, (int *) NULL), vec_splat_u8(0xC));
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	872 vpixelmask = vec_nor(valphamask, v0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	873 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	874 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	875 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	876
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	877 while (height--) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	878 width = info->dst_w;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	879 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	880 Uint32 Pixel; \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	881 unsigned sR, sG, sB, dR, dG, dB, sA, dA; \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	882 DISEMBLE_RGBA((Uint8 *)srcp, 4, srcfmt, Pixel, sR, sG, sB, sA); \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	883 if(sA) { \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	884 DISEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, Pixel, dR, dG, dB, dA); \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	885 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	886 ASSEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	887 } \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	888 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	889 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	890 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	891 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	892 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	893 if (width > 0) {
1487 dc6b59e925a2 Cleaning up warnings on MacOS X Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	894 /* vsrcPermute */
dc6b59e925a2 Cleaning up warnings on MacOS X Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	895 /* vdstPermute */
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	896 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	897 vector unsigned char valigner = VEC_ALIGNER(srcp);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	898 vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	899 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	900 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	901 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	902 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	903 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	904 vector unsigned char vdstalpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	905 /* s = srcp /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	906 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	907 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	908 vs = vec_perm(vs, v0, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	909
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	910 valpha = vec_perm(vs, v0, valphaPermute);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	911
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	912 /* d = dstp /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	913 vd = (vector unsigned char) vec_ld(0, dstp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	914 vd = vec_perm(vd, v0, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	915 vdstalpha = vec_and(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	916
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	917 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	918
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	919 /* set the alpha to the dest alpha */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	920 vd = vec_and(vd, vpixelmask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	921 vd = vec_or(vd, vdstalpha);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	922 vd = vec_perm(vd, v0, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	923
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	924 /* dstp = res /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	925 vec_st((vector unsigned int) vd, 0, dstp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	926
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	927 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	928 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	929 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	930 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	931
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	932 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	933 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	934 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	935 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	936 dstp += dstskip;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	937 #undef ONE_PIXEL_BLEND
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	938 }
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	939 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	940
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	941 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	942 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	943 BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo * info)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	944 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	945 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	946 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	947 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	948 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	949 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	950 int dstskip = info->dst_skip >> 2;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	951 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	952 vector unsigned char valphaPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	953 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	954 vector unsigned char vpixelmask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	955 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	956 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	957 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	958 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	959 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	960 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	961 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	962 valphamask = VEC_ALPHA_MASK();
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	963 valphaPermute = vec_and(vec_lvsl(0, (int *) NULL), vec_splat_u8(0xC));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	964
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	965
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	966 vpixelmask = vec_nor(valphamask, v0);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	967 while (height--) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	968 width = info->dst_w;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	969 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	970 while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	971 Uint32 dalpha; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	972 Uint32 d; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	973 Uint32 s1; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	974 Uint32 d1; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	975 Uint32 s = *srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	976 Uint32 alpha = s >> 24; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	977 if(alpha) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	978 if(alpha == SDL_ALPHA_OPAQUE) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	979 dstp = (s & 0x00ffffff) \| (dstp & 0xff000000); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	980 } else { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	981 d = *dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	982 dalpha = d & 0xff000000; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	983 s1 = s & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	984 d1 = d & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	985 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	986 s &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	987 d &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	988 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	989 *dstp = d1 \| d \| dalpha; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	990 } \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	991 } \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	992 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	993 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	994 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	995 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	996 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	997 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	998 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	999 vector unsigned char valigner = VEC_ALIGNER(srcp);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1000 vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1001 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1002 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1003 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1004 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1005 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1006 vector unsigned char vdstalpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1007 /* s = srcp /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1008 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1009 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1010
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1011 valpha = vec_perm(vs, v0, valphaPermute);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1012
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1013 /* d = dstp /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1014 vd = (vector unsigned char) vec_ld(0, dstp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1015 vdstalpha = vec_and(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1016
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1017 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1018
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1019 /* set the alpha to the dest alpha */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1020 vd = vec_and(vd, vpixelmask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1021 vd = vec_or(vd, vdstalpha);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1022
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1023 /* dstp = res /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1024 vec_st((vector unsigned int) vd, 0, dstp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1025
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1026 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1027 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1028 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1029 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1030 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1031 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1032 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1033 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1034 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1035 }
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1036 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1037 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1038
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1039 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1040 Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo * info)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1041 {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1042 /* XXX : 6 */
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1043 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1044 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1045 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1046 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1047 int dstskip = info->dst_skip >> 2;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1048 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1049 SDL_PixelFormat *dstfmt = info->dst_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1050 unsigned sA = info->a;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1051 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1052 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1053 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1054 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1055 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1056 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1057 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1058 vector unsigned char vbits;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1059 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1060 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1061
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1062 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1063 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1064 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1065
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1066 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1067 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1068
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1069 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1070 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1071 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1072
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1073 /* set a vector full of alpha and 255-alpha */
2291 dc3dd3a0bf02 Christian Walther fixed bug #529 Sam Lantinga <slouken@libsdl.org> parents: 2267 diff changeset	1074 ((unsigned char *) &valpha)[0] = sA;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1075 valpha = vec_splat(valpha, 0);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1076 vbits = (vector unsigned char) vec_splat_s8(-1);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1077
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1078 while (height--) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1079 int width = info->dst_w;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1080 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	1081 Uint32 Pixel; \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1082 unsigned sR, sG, sB, dR, dG, dB; \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	1083 DISEMBLE_RGB(((Uint8 *)srcp), 4, srcfmt, Pixel, sR, sG, sB); \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	1084 DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1085 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1086 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1087 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1088 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1089 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1090 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1091 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1092 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1093 int extrawidth = (width % 4);
2086 fffea8d6bf92 Merged r2954:2955 from branches/SDL-1.2: Altivec alpha blitter alignment fix. Ryan C. Gordon <icculus@icculus.org> parents: 2074 diff changeset	1094 vector unsigned char valigner = VEC_ALIGNER(srcp);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1095 vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1096 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1097 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1098 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1099 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1100
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1101 /* s = srcp /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1102 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1103 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1104 vs = vec_perm(vs, valpha, vsrcPermute);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1105
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1106 /* d = dstp /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1107 vd = (vector unsigned char) vec_ld(0, dstp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1108 vd = vec_perm(vd, vd, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1109
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1110 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1111
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1112 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1113 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1114 vd = vec_perm(vd, vbits, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1115
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1116 /* dstp = res /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1117 vec_st((vector unsigned int) vd, 0, dstp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1118
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1119 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1120 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1121 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1122 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1123 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1124 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1125 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1126 #undef ONE_PIXEL_BLEND
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1127
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1128 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1129 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1130 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1131
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1132 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1133
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1134
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1135 /* fast RGB888->(A)RGB888 blending */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1136 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1137 BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo * info)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1138 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1139 unsigned alpha = info->a;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1140 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1141 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1142 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1143 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1144 int dstskip = info->dst_skip >> 2;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1145 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1146 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1147 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1148 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1149 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1150
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1151 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1152 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1153 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1154
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1155 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1156 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1157
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1158 /* set a vector full of alpha and 255-alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1159 ((unsigned char *) &valpha)[0] = alpha;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1160 valpha = vec_splat(valpha, 0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1161
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1162 while (height--) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1163 int width = info->dst_w;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1164 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1165 Uint32 s = *srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1166 Uint32 d = *dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1167 Uint32 s1 = s & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1168 Uint32 d1 = d & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1169 d1 = (d1 + ((s1 - d1) * alpha >> 8)) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1170 & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1171 s &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1172 d &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1173 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1174 *dstp = d1 \| d \| 0xff000000; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1175 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1176 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1177 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1178 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1179 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1180 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1181 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1182 vector unsigned char valigner = VEC_ALIGNER(srcp);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1183 vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1184 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1185 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1186 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1187 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1188
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1189 /* s = srcp /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1190 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1191 vs = vec_perm(vs, voverflow, valigner);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1192
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1193 /* d = dstp /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1194 vd = (vector unsigned char) vec_ld(0, dstp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1195
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1196 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1197
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1198 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1199 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1200
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1201 /* dstp = res /
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1202 vec_st((vector unsigned int) vd, 0, dstp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1203
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1204 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1205 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1206 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1207 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1208 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1209 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1210 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1211 #undef ONE_PIXEL_BLEND
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1212
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1213 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1214 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1215 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1216 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1217
1795 398ac0f88e4d Fixed bug #220 Sam Lantinga <slouken@libsdl.org> parents: 1617 diff changeset	1218 #if __MWERKS__
398ac0f88e4d Fixed bug #220 Sam Lantinga <slouken@libsdl.org> parents: 1617 diff changeset	1219 #pragma altivec_model off
398ac0f88e4d Fixed bug #220 Sam Lantinga <slouken@libsdl.org> parents: 1617 diff changeset	1220 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	1221 #endif /* SDL_ALTIVEC_BLITTERS */
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1222
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1223 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1224 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1225 BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1226 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1227 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1228 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1229 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1230 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1231 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1232 int dstskip = info->dst_skip >> 2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1233
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1234 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1235 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1236 DUFFS_LOOP4({
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1237 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1238 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1239 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1240 + (s & d & 0x00010101)) \| 0xff000000;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1241 }, width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1242 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1243 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1244 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1245 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1246 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1247
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1248 /* fast RGB888->(A)RGB888 blending with surface alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1249 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1250 BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo * info)
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1251 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1252 unsigned alpha = info->a;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1253 if (alpha == 128) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1254 BlitRGBtoRGBSurfaceAlpha128(info);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1255 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1256 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1257 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1258 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1259 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1260 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1261 int dstskip = info->dst_skip >> 2;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1262 Uint32 s;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1263 Uint32 d;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1264 Uint32 s1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1265 Uint32 d1;
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1266
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1267 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1268 /* INDENT-OFF */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1269 DUFFS_LOOP_DOUBLE2({
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1270 /* One Pixel Blend */
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1271 s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1272 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1273 s1 = s & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1274 d1 = d & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1275 d1 = (d1 + ((s1 - d1) * alpha >> 8))
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1276 & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1277 s &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1278 d &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1279 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1280 *dstp = d1 \| d \| 0xff000000;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1281 ++srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1282 ++dstp;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1283 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1284 /* Two Pixels Blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1285 s = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1286 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1287 s1 = s & 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1288 d1 = d & 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1289 d1 += (s1 - d1) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1290 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1291
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1292 s = ((s & 0xff00) >> 8) \|
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1293 ((srcp[1] & 0xff00) << 8);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1294 d = ((d & 0xff00) >> 8) \|
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1295 ((dstp[1] & 0xff00) << 8);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1296 d += (s - d) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1297 d &= 0x00ff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1298
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1299 *dstp++ = d1 \| ((d << 8) & 0xff00) \| 0xff000000;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1300 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1301
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1302 s1 = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1303 d1 = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1304 s1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1305 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1306 d1 += (s1 - d1) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1307 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1308
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1309 *dstp = d1 \| ((d >> 8) & 0xff00) \| 0xff000000;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1310 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1311 ++dstp;
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1312 }, width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1313 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1314 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1315 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1316 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1317 }
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1318 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1319
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1320 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1321 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1322 BlitRGBtoRGBPixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1323 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1324 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1325 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1326 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1327 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1328 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1329 int dstskip = info->dst_skip >> 2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1330
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1331 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1332 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1333 DUFFS_LOOP4({
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1334 Uint32 dalpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1335 Uint32 d;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1336 Uint32 s1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1337 Uint32 d1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1338 Uint32 s = *srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1339 Uint32 alpha = s >> 24;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1340 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1341 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1342 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1343 Benchmark this! */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1344 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1345 if(alpha == SDL_ALPHA_OPAQUE) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1346 dstp = (s & 0x00ffffff) \| (dstp & 0xff000000);
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1347 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1348 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1349 * take out the middle component (green), and process
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1350 * the other two in parallel. One multiply less.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1351 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1352 d = *dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1353 dalpha = d & 0xff000000;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1354 s1 = s & 0xff00ff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1355 d1 = d & 0xff00ff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1356 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1357 s &= 0xff00;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1358 d &= 0xff00;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1359 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1360 *dstp = d1 \| d \| dalpha;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1361 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1362 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1363 ++srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1364 ++dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1365 }, width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1366 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1367 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1368 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1369 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1370 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1371
2261 c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	1372 #ifdef __3dNOW__
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1373 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1374 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1375 BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo * info)
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1376 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1377 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1378 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1379 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1380 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1381 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1382 int dstskip = info->dst_skip >> 2;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1383 SDL_PixelFormat *sf = info->src_fmt;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1384 Uint32 chanmask = sf->Rmask \| sf->Gmask \| sf->Bmask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1385 Uint32 amask = sf->Amask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1386 Uint32 ashift = sf->Ashift;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1387 Uint64 multmask;
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1388
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1389 __m64 src1, dst1, mm_alpha, mm_zero, dmask;
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1390
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1391 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
2260 202ddfd1cfb1 indent Sam Lantinga <slouken@libsdl.org> parents: 2257 diff changeset	1392 multmask = 0xFFFF;
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	1393 multmask <<= (ashift * 2);
17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	1394 multmask = ~multmask;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1395 dmask = (__m64 ) & multmask; /* dst alpha mask -> dmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1396
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1397 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1398 /* INDENT-OFF */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1399 DUFFS_LOOP4({
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1400 Uint32 alpha;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1401
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1402 _m_prefetch(srcp + 16);
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1403 _m_prefetch(dstp + 16);
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1404
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1405 alpha = *srcp & amask;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1406 if (alpha == 0) {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1407 /* do nothing */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1408 } else if (alpha == amask) {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1409 /* copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1410 dstp = (srcp & chanmask) \| (*dstp & ~chanmask);
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1411 } else {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1412 src1 = _mm_cvtsi32_si64(srcp); / src(ARGB) -> src1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1413 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1414
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1415 dst1 = _mm_cvtsi32_si64(dstp); / dst(ARGB) -> dst1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1416 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1417
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1418 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1419 mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1420 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1421 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1422 mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1423
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1424 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1425 src1 = _mm_sub_pi16(src1, dst1);/* src - dst -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1426 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src - dst) * alpha -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1427 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1428 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst) -> dst1(0A0R0G0B) */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1429 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1430
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1431 dstp = _mm_cvtsi64_si32(dst1); / dst1 -> pixel */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1432 }
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1433 ++srcp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1434 ++dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1435 }, width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1436 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1437 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1438 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1439 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1440 _mm_empty();
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1441 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1442
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	1443 #endif /* __MMX__ */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1444
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1445 /* 16bpp special case for per-surface alpha=50%: blend 2 pixels in parallel */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1446
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1447 /* blend a single 16 bit pixel at 50% */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1448 #define BLEND16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1449 ((((s & mask) + (d & mask)) >> 1) + (s & d & (~mask & 0xffff)))
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1450
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1451 /* blend two 16 bit pixels at 50% */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1452 #define BLEND2x16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1453 (((s & (mask \| mask << 16)) >> 1) + ((d & (mask \| mask << 16)) >> 1) \
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1454 + (s & d & (~(mask \| mask << 16))))
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1455
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1456 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1457 Blit16to16SurfaceAlpha128(SDL_BlitInfo * info, Uint16 mask)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1458 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1459 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1460 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1461 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1462 int srcskip = info->src_skip >> 1;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1463 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1464 int dstskip = info->dst_skip >> 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1465
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1466 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1467 if (((uintptr_t) srcp ^ (uintptr_t) dstp) & 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1468 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1469 * Source and destination not aligned, pipeline it.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1470 * This is mostly a win for big blits but no loss for
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1471 * small ones
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1472 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1473 Uint32 prev_sw;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1474 int w = width;
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1475
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1476 /* handle odd destination */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1477 if ((uintptr_t) dstp & 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1478 Uint16 d = dstp, s = srcp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1479 *dstp = BLEND16_50(d, s, mask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1480 dstp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1481 srcp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1482 w--;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1483 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1484 srcp++; /* srcp is now 32-bit aligned */
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1485
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1486 /* bootstrap pipeline with first halfword */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1487 prev_sw = ((Uint32 *) srcp)[-1];
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1488
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1489 while (w > 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1490 Uint32 sw, dw, s;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1491 sw = (Uint32 ) srcp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1492 dw = (Uint32 ) dstp;
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	1493 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1494 s = (prev_sw << 16) + (sw >> 16);
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	1495 #else
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1496 s = (prev_sw >> 16) + (sw << 16);
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	1497 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1498 prev_sw = sw;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1499 (Uint32 ) dstp = BLEND2x16_50(dw, s, mask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1500 dstp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1501 srcp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1502 w -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1503 }
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1504
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1505 /* final pixel if any */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1506 if (w) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1507 Uint16 d = *dstp, s;
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	1508 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1509 s = (Uint16) prev_sw;
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	1510 #else
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1511 s = (Uint16) (prev_sw >> 16);
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	1512 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1513 *dstp = BLEND16_50(d, s, mask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1514 srcp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1515 dstp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1516 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1517 srcp += srcskip - 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1518 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1519 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1520 /* source and destination are aligned */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1521 int w = width;
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1522
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1523 /* first odd pixel? */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1524 if ((uintptr_t) srcp & 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1525 Uint16 d = dstp, s = srcp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1526 *dstp = BLEND16_50(d, s, mask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1527 srcp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1528 dstp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1529 w--;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1530 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1531 /* srcp and dstp are now 32-bit aligned */
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1532
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1533 while (w > 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1534 Uint32 sw = (Uint32 ) srcp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1535 Uint32 dw = (Uint32 ) dstp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1536 (Uint32 ) dstp = BLEND2x16_50(dw, sw, mask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1537 srcp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1538 dstp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1539 w -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1540 }
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1541
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1542 /* last odd pixel? */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1543 if (w) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1544 Uint16 d = dstp, s = srcp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1545 *dstp = BLEND16_50(d, s, mask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1546 srcp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1547 dstp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1548 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1549 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1550 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1551 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1552 }
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1553 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1554
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	1555 #ifdef __MMX__
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1556
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1557 /* fast RGB565->RGB565 blending with surface alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1558 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1559 Blit565to565SurfaceAlphaMMX(SDL_BlitInfo * info)
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1560 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1561 unsigned alpha = info->a;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1562 if (alpha == 128) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1563 Blit16to16SurfaceAlpha128(info, 0xf7de);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1564 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1565 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1566 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1567 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1568 int srcskip = info->src_skip >> 1;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1569 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1570 int dstskip = info->dst_skip >> 1;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1571 Uint32 s, d;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1572
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1573 __m64 src1, dst1, src2, dst2, gmask, bmask, mm_res, mm_alpha;
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1574
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1575 alpha &= ~(1 + 2 + 4); /* cut alpha to get the exact same behaviour */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1576 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1577 alpha >>= 3; /* downscale alpha to 5 bits */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1578
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1579 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1580 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1581 /* position alpha to allow for mullo and mulhi on diff channels
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1582 to reduce the number of operations */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1583 mm_alpha = _mm_slli_si64(mm_alpha, 3);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1584
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1585 /* Setup the 565 color channel masks */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1586 gmask = _mm_set_pi32(0x07E007E0, 0x07E007E0); /* MASKGREEN -> gmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1587 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1588
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1589 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1590 /* INDENT-OFF */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1591 DUFFS_LOOP_QUATRO2(
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1592 {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1593 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1594 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1595 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1596 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1597 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1598 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1599 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1600 s = (s \| s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1601 d = (d \| d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1602 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1603 d &= 0x07e0f81f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	1604 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1605 },{
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1606 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1607 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1608 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1609 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1610 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1611 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1612 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1613 s = (s \| s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1614 d = (d \| d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1615 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1616 d &= 0x07e0f81f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	1617 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1618 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1619 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1620 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1621 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1622 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1623 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1624 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1625 s = (s \| s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1626 d = (d \| d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1627 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1628 d &= 0x07e0f81f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	1629 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1630 },{
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1631 src1 = (__m64)srcp; /* 4 src pixels -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1632 dst1 = (__m64)dstp; /* 4 dst pixels -> dst1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1633
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1634 /* red */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1635 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1636 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 [000r 000r 000r 000r] */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1637
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1638 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1639 dst2 = _mm_srli_pi16(dst2, 11); /* dst2 >> 11 -> dst2 [000r 000r 000r 000r] */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1640
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1641 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1642 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1643 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1644 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1645 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1646 dst2 = _mm_slli_pi16(dst2, 11); /* dst2 << 11 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1647
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1648 mm_res = dst2; /* RED -> mm_res */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1649
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1650 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1651 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1652 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1653
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1654 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1655 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1656
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1657 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1658 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1659 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1660 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1661 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1662
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1663 mm_res = _mm_or_si64(mm_res, dst2); /* RED \| GREEN -> mm_res */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1664
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1665 /* blue */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1666 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1667 src2 = _mm_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1668
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1669 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1670 dst2 = _mm_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1671
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1672 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1673 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1674 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1675 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1676 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1677 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1678
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1679 mm_res = _mm_or_si64(mm_res, dst2); /* RED \| GREEN \| BLUE -> mm_res */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1680
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1681 (__m64)dstp = mm_res; /* mm_res -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1682
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1683 srcp += 4;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1684 dstp += 4;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1685 }, width);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1686 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1687 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1688 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1689 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1690 _mm_empty();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1691 }
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1692 }
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1693
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1694 /* fast RGB555->RGB555 blending with surface alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1695 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1696 Blit555to555SurfaceAlphaMMX(SDL_BlitInfo * info)
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1697 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1698 unsigned alpha = info->a;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1699 if (alpha == 128) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1700 Blit16to16SurfaceAlpha128(info, 0xfbde);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1701 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1702 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1703 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1704 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1705 int srcskip = info->src_skip >> 1;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1706 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1707 int dstskip = info->dst_skip >> 1;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1708 Uint32 s, d;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1709
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1710 __m64 src1, dst1, src2, dst2, rmask, gmask, bmask, mm_res, mm_alpha;
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1711
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1712 alpha &= ~(1 + 2 + 4); /* cut alpha to get the exact same behaviour */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1713 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1714 alpha >>= 3; /* downscale alpha to 5 bits */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1715
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1716 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1717 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1718 /* position alpha to allow for mullo and mulhi on diff channels
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1719 to reduce the number of operations */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1720 mm_alpha = _mm_slli_si64(mm_alpha, 3);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1721
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1722 /* Setup the 555 color channel masks */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1723 rmask = _mm_set_pi32(0x7C007C00, 0x7C007C00); /* MASKRED -> rmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1724 gmask = _mm_set_pi32(0x03E003E0, 0x03E003E0); /* MASKGREEN -> gmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1725 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1726
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1727 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1728 /* INDENT-OFF */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1729 DUFFS_LOOP_QUATRO2(
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1730 {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1731 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1732 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1733 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1734 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1735 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1736 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1737 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1738 s = (s \| s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1739 d = (d \| d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1740 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1741 d &= 0x03e07c1f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	1742 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1743 },{
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1744 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1745 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1746 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1747 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1748 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1749 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1750 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1751 s = (s \| s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1752 d = (d \| d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1753 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1754 d &= 0x03e07c1f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	1755 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1756 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1757 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1758 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1759 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1760 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1761 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1762 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1763 s = (s \| s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1764 d = (d \| d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1765 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1766 d &= 0x03e07c1f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	1767 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1768 },{
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1769 src1 = (__m64)srcp; /* 4 src pixels -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1770 dst1 = (__m64)dstp; /* 4 dst pixels -> dst1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1771
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1772 /* red -- process the bits in place */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1773 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1774 src2 = _mm_and_si64(src2, rmask); /* src & MASKRED -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1775
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1776 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1777 dst2 = _mm_and_si64(dst2, rmask); /* dst & MASKRED -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1778
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1779 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1780 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1781 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1782 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1783 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1784 dst2 = _mm_and_si64(dst2, rmask); /* dst2 & MASKRED -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1785
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1786 mm_res = dst2; /* RED -> mm_res */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1787
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1788 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1789 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1790 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1791
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1792 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1793 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1794
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1795 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1796 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1797 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1798 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1799 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1800
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1801 mm_res = _mm_or_si64(mm_res, dst2); /* RED \| GREEN -> mm_res */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1802
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1803 /* blue */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1804 src2 = src1; /* src -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1805 src2 = _mm_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1806
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1807 dst2 = dst1; /* dst -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1808 dst2 = _mm_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1809
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1810 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1811 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1812 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1813 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1814 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1815 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1816
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1817 mm_res = _mm_or_si64(mm_res, dst2); /* RED \| GREEN \| BLUE -> mm_res */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1818
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1819 (__m64)dstp = mm_res; /* mm_res -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1820
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1821 srcp += 4;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1822 dstp += 4;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1823 }, width);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1824 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1825 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1826 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1827 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1828 _mm_empty();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1829 }
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1830 }
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	1831
17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	1832 #endif /* __MMX__ */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1833
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1834 /* fast RGB565->RGB565 blending with surface alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1835 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1836 Blit565to565SurfaceAlpha(SDL_BlitInfo * info)
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1837 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1838 unsigned alpha = info->a;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1839 if (alpha == 128) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1840 Blit16to16SurfaceAlpha128(info, 0xf7de);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1841 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1842 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1843 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1844 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1845 int srcskip = info->src_skip >> 1;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1846 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1847 int dstskip = info->dst_skip >> 1;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1848 alpha >>= 3; /* downscale alpha to 5 bits */
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1849
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1850 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1851 /* INDENT-OFF */
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1852 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1853 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1854 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1855 /*
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1856 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1857 * the high 16 bits, and process all three RGB
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1858 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1859 */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1860 s = (s \| s << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1861 d = (d \| d << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1862 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1863 d &= 0x07e0f81f;
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1864 *dstp++ = (Uint16)(d \| d >> 16);
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1865 }, width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1866 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1867 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1868 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1869 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1870 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1871 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1872
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1873 /* fast RGB555->RGB555 blending with surface alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1874 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1875 Blit555to555SurfaceAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1876 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1877 unsigned alpha = info->a; /* downscale alpha to 5 bits */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1878 if (alpha == 128) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1879 Blit16to16SurfaceAlpha128(info, 0xfbde);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1880 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1881 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1882 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1883 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1884 int srcskip = info->src_skip >> 1;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1885 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1886 int dstskip = info->dst_skip >> 1;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1887 alpha >>= 3; /* downscale alpha to 5 bits */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1888
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1889 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1890 /* INDENT-OFF */
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1891 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1892 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1893 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1894 /*
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1895 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1896 * the high 16 bits, and process all three RGB
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1897 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1898 */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1899 s = (s \| s << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1900 d = (d \| d << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1901 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1902 d &= 0x03e07c1f;
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1903 *dstp++ = (Uint16)(d \| d >> 16);
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1904 }, width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1905 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1906 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1907 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1908 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1909 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1910 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1911
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1912 /* fast ARGB8888->RGB565 blending with pixel alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1913 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1914 BlitARGBto565PixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1915 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1916 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1917 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1918 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1919 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1920 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1921 int dstskip = info->dst_skip >> 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1922
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1923 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1924 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1925 DUFFS_LOOP4({
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1926 Uint32 s = *srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1927 unsigned alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1928 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1929 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1930 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1931 Benchmark this! */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1932 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1933 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1934 *dstp = (Uint16)((s >> 8 & 0xf800) + (s >> 5 & 0x7e0) + (s >> 3 & 0x1f));
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1935 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1936 Uint32 d = *dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1937 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1938 * convert source and destination to G0RAB65565
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1939 * and blend all components at the same time
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1940 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1941 s = ((s & 0xfc00) << 11) + (s >> 8 & 0xf800)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1942 + (s >> 3 & 0x1f);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1943 d = (d \| d << 16) & 0x07e0f81f;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1944 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1945 d &= 0x07e0f81f;
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1946 *dstp = (Uint16)(d \| d >> 16);
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1947 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1948 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1949 srcp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1950 dstp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1951 }, width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1952 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1953 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1954 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1955 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1956 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1957
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1958 /* fast ARGB8888->RGB555 blending with pixel alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1959 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1960 BlitARGBto555PixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1961 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1962 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1963 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1964 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1965 int srcskip = info->src_skip >> 2;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1966 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1967 int dstskip = info->dst_skip >> 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1968
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1969 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1970 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1971 DUFFS_LOOP4({
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1972 unsigned alpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1973 Uint32 s = *srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1974 alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1975 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1976 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1977 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1978 Benchmark this! */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1979 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1980 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1981 *dstp = (Uint16)((s >> 9 & 0x7c00) + (s >> 6 & 0x3e0) + (s >> 3 & 0x1f));
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1982 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1983 Uint32 d = *dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1984 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1985 * convert source and destination to G0RAB65565
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1986 * and blend all components at the same time
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1987 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1988 s = ((s & 0xf800) << 10) + (s >> 9 & 0x7c00)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1989 + (s >> 3 & 0x1f);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1990 d = (d \| d << 16) & 0x03e07c1f;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1991 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1992 d &= 0x03e07c1f;
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1993 *dstp = (Uint16)(d \| d >> 16);
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1994 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1995 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1996 srcp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1997 dstp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1998 }, width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1999 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2000 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2001 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2002 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2003 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2004
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2005 /* General (slow) N->N blending with per-surface alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2006 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2007 BlitNtoNSurfaceAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2008 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2009 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2010 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2011 Uint8 *src = info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2012 int srcskip = info->src_skip;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2013 Uint8 *dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2014 int dstskip = info->dst_skip;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2015 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2016 SDL_PixelFormat *dstfmt = info->dst_fmt;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2017 int srcbpp = srcfmt->BytesPerPixel;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2018 int dstbpp = dstfmt->BytesPerPixel;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2019 unsigned sA = info->a;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2020 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2021
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2022 if (sA) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2023 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2024 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2025 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2026 {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2027 Uint32 Pixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2028 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2029 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2030 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2031 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2032 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2033 unsigned dB;
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2034 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2035 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2036 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2037 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2038 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2039 dst += dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2040 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2041 width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2042 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2043 src += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2044 dst += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2045 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2046 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2047 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2048
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2049 /* General (slow) colorkeyed N->N blending with per-surface alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2050 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2051 BlitNtoNSurfaceAlphaKey(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2052 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2053 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2054 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2055 Uint8 *src = info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2056 int srcskip = info->src_skip;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2057 Uint8 *dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2058 int dstskip = info->dst_skip;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2059 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2060 SDL_PixelFormat *dstfmt = info->dst_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2061 Uint32 ckey = info->colorkey;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2062 int srcbpp = srcfmt->BytesPerPixel;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2063 int dstbpp = dstfmt->BytesPerPixel;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2064 unsigned sA = info->a;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2065 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2066
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2067 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2068 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2069 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2070 {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2071 Uint32 Pixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2072 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2073 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2074 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2075 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2076 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2077 unsigned dB;
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2078 RETRIEVE_RGB_PIXEL(src, srcbpp, Pixel);
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2079 if(sA && Pixel != ckey) {
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2080 RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB);
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2081 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2082 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2083 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2084 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2085 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2086 dst += dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2087 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2088 width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2089 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2090 src += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2091 dst += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2092 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2093 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2094
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2095 /* General (slow) N->N blending with pixel alpha */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2096 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2097 BlitNtoNPixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2098 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2099 int width = info->dst_w;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2100 int height = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2101 Uint8 *src = info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2102 int srcskip = info->src_skip;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2103 Uint8 *dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2104 int dstskip = info->dst_skip;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2105 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2106 SDL_PixelFormat *dstfmt = info->dst_fmt;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2107
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2108 int srcbpp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2109 int dstbpp;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2110
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2111 /* Set up some basic variables */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2112 srcbpp = srcfmt->BytesPerPixel;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2113 dstbpp = dstfmt->BytesPerPixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2114
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2115 /* FIXME: for 8bpp source alpha, this doesn't get opaque values
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2116 quite right. for <8bpp source alpha, it gets them very wrong
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2117 (check all macros!)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2118 It is unclear whether there is a good general solution that doesn't
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2119 need a branch (or a divide). */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2120 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2121 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2122 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2123 {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2124 Uint32 Pixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2125 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2126 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2127 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2128 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2129 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2130 unsigned dB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2131 unsigned sA;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2132 unsigned dA;
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2133 DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA);
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2134 if(sA) {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2135 DISEMBLE_RGBA(dst, dstbpp, dstfmt, Pixel, dR, dG, dB, dA);
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2136 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2137 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2138 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2139 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2140 dst += dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2141 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2142 width);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2143 /* INDENT-ON */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2144 src += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2145 dst += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2146 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2147 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2148
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2149
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2150 SDL_BlitFunc
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2151 SDL_CalculateBlitA(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2152 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2153 SDL_PixelFormat *sf = surface->format;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2154 SDL_PixelFormat *df = surface->map->dst->format;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2155
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2156 switch (surface->map->info.flags) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2157 case SDL_COPY_BLEND:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2158 /* Per-pixel alpha blits */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2159 switch (df->BytesPerPixel) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2160 case 1:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2161 return BlitNto1PixelAlpha;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2162
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2163 case 2:
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	2164 #if SDL_ALTIVEC_BLITTERS
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2165 if (sf->BytesPerPixel == 4
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2166 && df->Gmask == 0x7e0 && df->Bmask == 0x1f
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2167 && SDL_HasAltiVec())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2168 return Blit32to565PixelAlphaAltivec;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2169 else
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2170 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2171 if (sf->BytesPerPixel == 4 && sf->Amask == 0xff000000
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2172 && sf->Gmask == 0xff00
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2173 && ((sf->Rmask == 0xff && df->Rmask == 0x1f)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2174 \|\| (sf->Bmask == 0xff && df->Bmask == 0x1f))) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2175 if (df->Gmask == 0x7e0)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2176 return BlitARGBto565PixelAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2177 else if (df->Gmask == 0x3e0)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2178 return BlitARGBto555PixelAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2179 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2180 return BlitNtoNPixelAlpha;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2181
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2182 case 4:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2183 if (sf->Rmask == df->Rmask
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2184 && sf->Gmask == df->Gmask
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2185 && sf->Bmask == df->Bmask && sf->BytesPerPixel == 4) {
2261 c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	2186 #if defined(__MMX__) \|\| defined(__3dNOW__)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2187 if (sf->Rshift % 8 == 0
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2188 && sf->Gshift % 8 == 0
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2189 && sf->Bshift % 8 == 0
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2190 && sf->Ashift % 8 == 0 && sf->Aloss == 0) {
2261 c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	2191 #ifdef __3dNOW__
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2192 if (SDL_Has3DNow())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2193 return BlitRGBtoRGBPixelAlphaMMX3DNOW;
2261 c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	2194 #endif
c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	2195 #ifdef __MMX__
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2196 if (SDL_HasMMX())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2197 return BlitRGBtoRGBPixelAlphaMMX;
2261 c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	2198 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2199 }
2261 c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	2200 #endif /* __MMX__ \|\| __3dNOW__ */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2201 if (sf->Amask == 0xff000000) {
1617 b255b4058d37 Patch from Alex to fix reverted code Sam Lantinga <slouken@libsdl.org> parents: 1546 diff changeset	2202 #if SDL_ALTIVEC_BLITTERS
2231 a353684c7cc1 Fixed compiling the Altivec blit code Sam Lantinga <slouken@libsdl.org> parents: 2141 diff changeset	2203 if (SDL_HasAltiVec())
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2204 return BlitRGBtoRGBPixelAlphaAltivec;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2205 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2206 return BlitRGBtoRGBPixelAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2207 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2208 }
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	2209 #if SDL_ALTIVEC_BLITTERS
2231 a353684c7cc1 Fixed compiling the Altivec blit code Sam Lantinga <slouken@libsdl.org> parents: 2141 diff changeset	2210 if (sf->Amask && sf->BytesPerPixel == 4 && SDL_HasAltiVec())
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2211 return Blit32to32PixelAlphaAltivec;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2212 else
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2213 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2214 return BlitNtoNPixelAlpha;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2215
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2216 case 3:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2217 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2218 return BlitNtoNPixelAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2219 }
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2220 break;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2221
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2222 case SDL_COPY_MODULATE_ALPHA \| SDL_COPY_BLEND:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2223 if (sf->Amask == 0) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2224 /* Per-surface alpha blits */
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2225 switch (df->BytesPerPixel) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2226 case 1:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2227 return BlitNto1SurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2228
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2229 case 2:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2230 if (surface->map->identity) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2231 if (df->Gmask == 0x7e0) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2232 #ifdef __MMX__
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2233 if (SDL_HasMMX())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2234 return Blit565to565SurfaceAlphaMMX;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2235 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2236 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2237 return Blit565to565SurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2238 } else if (df->Gmask == 0x3e0) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2239 #ifdef __MMX__
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2240 if (SDL_HasMMX())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2241 return Blit555to555SurfaceAlphaMMX;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2242 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2243 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2244 return Blit555to555SurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2245 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2246 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2247 return BlitNtoNSurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2248
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2249 case 4:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2250 if (sf->Rmask == df->Rmask
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2251 && sf->Gmask == df->Gmask
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2252 && sf->Bmask == df->Bmask && sf->BytesPerPixel == 4) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2253 #ifdef __MMX__
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2254 if (sf->Rshift % 8 == 0
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2255 && sf->Gshift % 8 == 0
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2256 && sf->Bshift % 8 == 0 && SDL_HasMMX())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2257 return BlitRGBtoRGBSurfaceAlphaMMX;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2258 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2259 if ((sf->Rmask \| sf->Gmask \| sf->Bmask) == 0xffffff) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2260 #if SDL_ALTIVEC_BLITTERS
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2261 if (SDL_HasAltiVec())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2262 return BlitRGBtoRGBSurfaceAlphaAltivec;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2263 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2264 return BlitRGBtoRGBSurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2265 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2266 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2267 #if SDL_ALTIVEC_BLITTERS
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2268 if ((sf->BytesPerPixel == 4) && SDL_HasAltiVec())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2269 return Blit32to32SurfaceAlphaAltivec;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2270 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2271 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2272 return BlitNtoNSurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2273
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2274 case 3:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2275 default:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2276 return BlitNtoNSurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2277 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2278 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2279 break;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2280
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2281 case SDL_COPY_COLORKEY \| SDL_COPY_MODULATE_ALPHA \| SDL_COPY_BLEND:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2282 if (sf->Amask == 0) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2283 if (df->BytesPerPixel == 1)
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2284 return BlitNto1SurfaceAlphaKey;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2285 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2286 #if SDL_ALTIVEC_BLITTERS
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2287 if (sf->BytesPerPixel == 4 && df->BytesPerPixel == 4 &&
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2288 SDL_HasAltiVec())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2289 return Blit32to32SurfaceAlphaKeyAltivec;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2290 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2291 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2292 return BlitNtoNSurfaceAlphaKey;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2293 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2294 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2295 }
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2296
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2297 return NULL;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2298 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2299
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2300 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_blit_A.c @ 2836:b128b94ed31e