sdl-ios-xcode: src/video/SDL_blit

annotate src/video/SDL_blit_A.c @ 3473:7bdc10624cba

This is terrible, but the OpenGL standard says that lines are half open, which means that one endpoint is not covered so adjoining lines don't overlap. It also doesn't define which end is open, and indeed Mac OS X and Linux differ. Mac OS X seems to leave the second endpoint open, but Linux uses the right-most endpoint for x major lines and the bottom-most endpoint for y major lines.

author	Sam Lantinga <slouken@libsdl.org>
date	Sat, 21 Nov 2009 07:14:21 +0000
parents	baeff5f3203b
children	f7b03b6838cb

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
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2853 diff changeset	3 Copyright (C) 1997-2009 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 =
3013 8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 diff changeset	286 (0xff << df->Rshift) \| (0xff << df->
8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 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,
3430 baeff5f3203b Updated for the new pixel format structure Sam Lantinga <slouken@libsdl.org> parents: 3363 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 };
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	507 if (!srcfmt) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	508 srcfmt = &default_pixel_format;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	509 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	510 if (!dstfmt) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	511 dstfmt = &default_pixel_format;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	512 }
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	513 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	514 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	515 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	516 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	517 0x0C);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	518 vector unsigned char vswiz;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	519 vector unsigned int srcvec;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	520 #define RESHIFT(X) (3 - ((X) >> 3))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	521 Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	522 Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	523 Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	524 Uint32 amask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	525 /* 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	526 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	527 amask =
3013 8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 diff changeset	528 ((srcfmt->Amask) ? RESHIFT(srcfmt->
8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 diff changeset	529 Ashift) : 0x10) << (dstfmt->Ashift);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	530 } 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	531 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	532 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	533 0xFFFFFFFF);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	534 }
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	535 #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	536 ((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	537 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	538 return (vswiz);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	539 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	540
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	541 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	542 Blit32to565PixelAlphaAltivec(SDL_BlitInfo * info)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	543 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	544 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	545 Uint8 src = (Uint8 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	546 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	547 Uint8 dst = (Uint8 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	548 int dstskip = info->dst_skip;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	549 SDL_PixelFormat *srcfmt = info->src_fmt;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	550
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	551 vector unsigned char v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	552 vector unsigned short v8_16 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	553 vector unsigned short v1_16 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	554 vector unsigned short v2_16 = vec_splat_u16(2);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	555 vector unsigned short v3_16 = vec_splat_u16(3);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	556 vector unsigned int v8_32 = vec_splat_u32(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	557 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	558 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	559 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	560 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 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	562 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	563 0x00fc, 0x00fc, 0x00fc, 0x00fc);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	564
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	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	566 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	567 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	568 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	569 */
c121d94672cb SDL 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 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	571 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	572 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	573 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	574 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 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	576 (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	577 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	578 );
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	579 /*
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	580 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	581 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	582 */
c121d94672cb SDL 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 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	584 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	585 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	586 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	587 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	588 (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	589 );
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	590 /*
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	591 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	592 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	593 */
c121d94672cb SDL 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 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	595 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	596 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	597 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	598 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	599 (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	600 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	601 );
c121d94672cb SDL 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 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	603 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	604 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	605 0x00, 0x1a, 0x00, 0x1e);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	606 vector unsigned char mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	607 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	608 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	609 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	610
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	611 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	612 vf800 = vec_sl(vf800, vec_splat_u16(8));
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	613
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	614 while (height--) {
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	615 int extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	616 vector unsigned char valigner;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	617 vector unsigned char vsrc;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	618 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	619 int width = info->dst_w;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	620
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	621 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	622 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	623 Uint32 Pixel; \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	624 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	625 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	626 if(sA) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	627 unsigned short dstpixel = ((unsigned short )dst); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	628 dR = (dstpixel >> 8) & 0xf8; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	629 dG = (dstpixel >> 3) & 0xfc; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	630 dB = (dstpixel << 3) & 0xf8; \
3363 90aec03bf9fd Fixed bug #627 Sam Lantinga <slouken@libsdl.org> parents: 3035 diff changeset	631 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	632 ((unsigned short )dst) = ( \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	633 ((dR & 0xf8) << 8) \| ((dG & 0xfc) << 3) \| (dB >> 3) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	634 ); \
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 src += 4; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	637 dst += 2; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	638 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	639 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	640 ONE_PIXEL_BLEND((UNALIGNED_PTR(dst)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	641 extrawidth = (width % 8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	642 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	643 vsrc = (vector unsigned char) vec_ld(0, src);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	644 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	645 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	646 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	647 vector unsigned char vsrc1, vsrc2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	648 vector unsigned char vdst1, vdst2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	649 vector unsigned short vR, vG, vB;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	650 vector unsigned short vpixel, vrpixel, vgpixel, vbpixel;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	651
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	652 /* 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	653 voverflow = (vector unsigned char) vec_ld(15, src);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	654 vsrc = vec_perm(vsrc, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	655 vsrc1 = vec_perm(vsrc, vsrc, vpermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	656 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	657 vsrc = (vector unsigned char) vec_ld(15, src);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	658 voverflow = vec_perm(voverflow, vsrc, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	659 vsrc2 = vec_perm(voverflow, voverflow, vpermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	660 src += 16;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	661
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	662 /* Load 8 pixels from dst as XRGB */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	663 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	664 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	665 vB = vec_sl((vector unsigned short) voverflow, v3_16);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	666 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	667 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	668 (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	669 (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 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	671 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	672 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	673 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	674 (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	675 (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 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	677 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	678 vdst2 = vec_perm(vdst2, (vector unsigned char) vG, vgreen2);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	679
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	680 /* Alpha blend 8 pixels as ARGB */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	681 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	682 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	683 v8_16);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	684 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	685 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	686 v8_16);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	687
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	688 /* 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	689 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	690 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	691 (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	692 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	693 vgpixel = (vector unsigned short) vec_perm(vdst1, vdst2, vgmerge);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	694 vgpixel = vec_and(vgpixel, vfc);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	695 vgpixel = vec_sl(vgpixel, v3_16);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	696 vrpixel = vec_sl(vpixel, v1_16);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	697 vrpixel = vec_and(vrpixel, vf800);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	698 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	699 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	700 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	701 (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	702 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	703
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	704 /* Store 8 pixels */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	705 vec_st(vdst1, 0, dst);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	706
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	707 width -= 8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	708 dst += 16;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	709 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	710 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	711 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	712 src += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	713 dst += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	714 }
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
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	717 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	718 Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo * info)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	719 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	720 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	721 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	722 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	723 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	724 int dstskip = info->dst_skip >> 2;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	725 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	726 SDL_PixelFormat *dstfmt = info->dst_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	727 unsigned sA = info->a;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	728 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	729 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	730 Uint32 ckey = info->colorkey;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	731 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	732 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	733 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	734 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	735 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	736 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	737 vector unsigned char vbits;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	738 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	739 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	740 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	741 vector unsigned int vckey;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	742 vector unsigned int vrgbmask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	743
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	744 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	745 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	746 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	747 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	748
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	749 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	750 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	751
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	752 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	753 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	754 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	755
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	756 /* 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	757 ((unsigned char *) &valpha)[0] = sA;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	758 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	759 vbits = (vector unsigned char) vec_splat_s8(-1);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	760
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	761 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	762 ((unsigned int ) (char ) &vckey)[0] = ckey;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	763 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	764 ((unsigned int ) (char ) &vrgbmask)[0] = rgbmask;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	765 vrgbmask = vec_splat(vrgbmask, 0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	766
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	767 while (height--) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	768 int width = info->dst_w;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	769 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	770 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	771 Uint32 Pixel; \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	772 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	773 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	774 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	775 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	776 DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \
3363 90aec03bf9fd Fixed bug #627 Sam Lantinga <slouken@libsdl.org> parents: 3035 diff changeset	777 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	778 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	779 } \
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	780 dstp++; \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	781 srcp++; \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	782 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	783 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	784 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	785 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	786 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	787 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	788 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	789 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	790 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	791 vector unsigned char vsel;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	792 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	793 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	794 vector unsigned char vd_orig;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	795
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	796 /* 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	797 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	798 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	799
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	800 /* 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	801 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	802 (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	803 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	804 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	805 vsel, vckey);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	806
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	807 /* permute to source format */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	808 vs = vec_perm(vs, valpha, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	809
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	810 /* 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	811 vd = (vector unsigned char) vec_ld(0, dstp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	812 vd_orig = vd = vec_perm(vd, v0, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	813
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	814 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	815
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	816 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	817 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	818
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	819 /* mask out color key */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	820 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	821
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	822 /* permute to dest format */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	823 vd = vec_perm(vd, vbits, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	824
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	825 /* 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	826 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	827
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	828 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	829 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	830 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	831 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	832 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	833 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	834 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	835 #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	836
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	837 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	838 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	839 }
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
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	843 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	844 Blit32to32PixelAlphaAltivec(SDL_BlitInfo * info)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	845 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	846 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	847 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	848 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	849 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	850 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	851 int dstskip = info->dst_skip >> 2;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	852 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	853 SDL_PixelFormat *dstfmt = info->dst_fmt;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	854 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	855 vector unsigned char valphaPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	856 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	857 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	858 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	859 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	860 vector unsigned char vpixelmask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	861 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	862 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	863 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	864
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	865 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	866 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	867 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	868 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	869 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	870 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	871 vpixelmask = vec_nor(valphamask, v0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	872 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	873 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	874 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	875
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	876 while (height--) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	877 width = info->dst_w;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	878 #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	879 Uint32 Pixel; \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	880 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	881 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	882 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	883 DISEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, Pixel, dR, dG, dB, dA); \
3363 90aec03bf9fd Fixed bug #627 Sam Lantinga <slouken@libsdl.org> parents: 3035 diff changeset	884 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	885 ASSEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	886 } \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	887 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	888 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	889 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	890 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	891 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	892 if (width > 0) {
1487 dc6b59e925a2 Cleaning up warnings on MacOS X Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	893 /* vsrcPermute */
dc6b59e925a2 Cleaning up warnings on MacOS X Sam Lantinga <slouken@libsdl.org> parents: 1456 diff changeset	894 /* vdstPermute */
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	895 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	896 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	897 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	898 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	899 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	900 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	901 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	902 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	903 vector unsigned char vdstalpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	904 /* 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	905 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	906 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	907 vs = vec_perm(vs, v0, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	908
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	909 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	910
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	911 /* 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	912 vd = (vector unsigned char) vec_ld(0, dstp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	913 vd = vec_perm(vd, v0, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	914 vdstalpha = vec_and(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	915
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	916 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	917
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	918 /* set the alpha to the dest alpha */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	919 vd = vec_and(vd, vpixelmask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	920 vd = vec_or(vd, vdstalpha);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	921 vd = vec_perm(vd, v0, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	922
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	923 /* 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	924 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	925
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	926 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	927 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	928 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	929 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	930
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 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	933 }
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	934 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	935 dstp += dstskip;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	936 #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	937 }
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	938 }
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 /* 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	941 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	942 BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo * info)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	943 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	944 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	945 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	946 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	947 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	948 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	949 int dstskip = info->dst_skip >> 2;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	950 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	951 vector unsigned char valphaPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	952 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	953 vector unsigned char vpixelmask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	954 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	955 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	956 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	957 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	958 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	959 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	960 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	961 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	962 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	963
c121d94672cb SDL 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
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	965 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	966 while (height--) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	967 width = info->dst_w;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	968 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	969 while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	970 Uint32 dalpha; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	971 Uint32 d; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	972 Uint32 s1; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	973 Uint32 d1; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	974 Uint32 s = *srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	975 Uint32 alpha = s >> 24; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	976 if(alpha) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	977 if(alpha == SDL_ALPHA_OPAQUE) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	978 dstp = (s & 0x00ffffff) \| (dstp & 0xff000000); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	979 } else { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	980 d = *dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	981 dalpha = d & 0xff000000; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	982 s1 = s & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	983 d1 = d & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	984 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	985 s &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	986 d &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	987 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	988 *dstp = d1 \| d \| dalpha; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	989 } \
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 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	992 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	993 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	994 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	995 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	996 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	997 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	998 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	999 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	1000 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1001 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1002 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1003 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1004 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1005 vector unsigned char vdstalpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1006 /* 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	1007 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1008 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1009
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1010 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	1011
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1012 /* 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	1013 vd = (vector unsigned char) vec_ld(0, dstp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1014 vdstalpha = vec_and(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1015
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1016 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1017
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1018 /* set the alpha to the dest alpha */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1019 vd = vec_and(vd, vpixelmask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1020 vd = vec_or(vd, vdstalpha);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1021
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1022 /* 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	1023 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	1024
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1025 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1026 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1027 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1028 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1029 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1030 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1031 }
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	1032 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	1033 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	1034 }
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1035 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1036 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1037
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	1038 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	1039 Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo * info)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1040 {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1041 /* XXX : 6 */
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1042 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	1043 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1044 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	1045 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1046 int dstskip = info->dst_skip >> 2;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1047 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1048 SDL_PixelFormat *dstfmt = info->dst_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1049 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	1050 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1051 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1052 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1053 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1054 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1055 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1056 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1057 vector unsigned char vbits;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1058 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1059 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1060
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1061 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1062 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1063 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1064
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1065 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1066 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1067
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1068 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1069 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1070 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1071
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1072 /* 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	1073 ((unsigned char *) &valpha)[0] = sA;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1074 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	1075 vbits = (vector unsigned char) vec_splat_s8(-1);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1076
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	1077 while (height--) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1078 int width = info->dst_w;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1079 #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	1080 Uint32 Pixel; \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1081 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	1082 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	1083 DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \
3363 90aec03bf9fd Fixed bug #627 Sam Lantinga <slouken@libsdl.org> parents: 3035 diff changeset	1084 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1085 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1086 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1087 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1088 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1089 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1090 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1091 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1092 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	1093 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	1094 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	1095 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1096 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1097 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1098 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1099
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1100 /* 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	1101 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1102 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1103 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	1104
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1105 /* 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	1106 vd = (vector unsigned char) vec_ld(0, dstp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1107 vd = vec_perm(vd, vd, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1108
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1109 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1110
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1111 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1112 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1113 vd = vec_perm(vd, vbits, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1114
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1115 /* 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	1116 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	1117
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1118 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1119 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1120 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1121 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1122 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1123 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1124 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1125 #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	1126
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1127 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1128 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1129 }
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 /* 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	1135 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	1136 BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo * info)
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1137 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1138 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	1139 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	1140 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1141 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	1142 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1143 int dstskip = info->dst_skip >> 2;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1144 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1145 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1146 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1147 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1148 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1149
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1150 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1151 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1152 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1153
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1154 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1155 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1156
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1157 /* 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	1158 ((unsigned char *) &valpha)[0] = alpha;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1159 valpha = vec_splat(valpha, 0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1160
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	1161 while (height--) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1162 int width = info->dst_w;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1163 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1164 Uint32 s = *srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1165 Uint32 d = *dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1166 Uint32 s1 = s & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1167 Uint32 d1 = d & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1168 d1 = (d1 + ((s1 - d1) * alpha >> 8)) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1169 & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1170 s &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1171 d &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1172 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1173 *dstp = d1 \| d \| 0xff000000; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1174 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1175 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1176 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1177 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1178 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1179 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1180 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1181 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	1182 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	1183 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1184 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1185 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1186 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1187
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1188 /* 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	1189 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1190 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	1191
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1192 /* 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	1193 vd = (vector unsigned char) vec_ld(0, dstp);
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1194
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1195 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1196
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1197 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1198 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1199
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1200 /* 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	1201 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	1202
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1203 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1204 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1205 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1206 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1207 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1208 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1209 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1210 #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	1211
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1212 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1213 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1214 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1215 }
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	1216
1795 398ac0f88e4d Fixed bug #220 Sam Lantinga <slouken@libsdl.org> parents: 1617 diff changeset	1217 #if __MWERKS__
398ac0f88e4d Fixed bug #220 Sam Lantinga <slouken@libsdl.org> parents: 1617 diff changeset	1218 #pragma altivec_model off
398ac0f88e4d Fixed bug #220 Sam Lantinga <slouken@libsdl.org> parents: 1617 diff changeset	1219 #endif
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	1220 #endif /* SDL_ALTIVEC_BLITTERS */
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1221
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1222 /* 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	1223 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	1224 BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1225 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1226 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	1227 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	1228 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1229 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	1230 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1231 int dstskip = info->dst_skip >> 2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1232
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	1233 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	1234 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1235 DUFFS_LOOP4({
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1236 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1237 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1238 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1239 + (s & d & 0x00010101)) \| 0xff000000;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1240 }, 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	1241 /* 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	1242 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	1243 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	1244 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1245 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1246
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1247 /* 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	1248 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	1249 BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo * info)
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1250 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1251 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	1252 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	1253 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	1254 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1255 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	1256 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	1257 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1258 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	1259 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1260 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	1261 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	1262 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	1263 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	1264 Uint32 d1;
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1265
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	1266 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	1267 /* INDENT-OFF */
3035 ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request. Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	1268 DUFFS_LOOP4({
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1269 s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1270 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1271 s1 = s & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1272 d1 = d & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1273 d1 = (d1 + ((s1 - d1) * alpha >> 8))
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1274 & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1275 s &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1276 d &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1277 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1278 *dstp = d1 \| d \| 0xff000000;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1279 ++srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1280 ++dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1281 }, 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	1282 /* 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	1283 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	1284 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	1285 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1286 }
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1287 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1288
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1289 /* 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	1290 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	1291 BlitRGBtoRGBPixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1292 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1293 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	1294 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	1295 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1296 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	1297 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1298 int dstskip = info->dst_skip >> 2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1299
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	1300 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	1301 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1302 DUFFS_LOOP4({
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1303 Uint32 dalpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1304 Uint32 d;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1305 Uint32 s1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1306 Uint32 d1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1307 Uint32 s = *srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1308 Uint32 alpha = s >> 24;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1309 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1310 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1311 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1312 Benchmark this! */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1313 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1314 if(alpha == SDL_ALPHA_OPAQUE) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1315 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	1316 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1317 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1318 * take out the middle component (green), and process
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1319 * the other two in parallel. One multiply less.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1320 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1321 d = *dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1322 dalpha = d & 0xff000000;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1323 s1 = s & 0xff00ff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1324 d1 = d & 0xff00ff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1325 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1326 s &= 0xff00;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1327 d &= 0xff00;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1328 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1329 *dstp = d1 \| d \| dalpha;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1330 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1331 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1332 ++srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1333 ++dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1334 }, 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	1335 /* 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	1336 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	1337 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	1338 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1339 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1340
2261 c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	1341 #ifdef __3dNOW__
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1342 /* 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	1343 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	1344 BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo * info)
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1345 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1346 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	1347 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	1348 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1349 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	1350 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1351 int dstskip = info->dst_skip >> 2;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1352 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	1353 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	1354 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	1355 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	1356 Uint64 multmask;
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1357
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	1358 __m64 src1, dst1, mm_alpha, mm_zero, dmask;
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1359
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	1360 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
2260 202ddfd1cfb1 indent Sam Lantinga <slouken@libsdl.org> parents: 2257 diff changeset	1361 multmask = 0xFFFF;
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	1362 multmask <<= (ashift * 2);
17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	1363 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	1364 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	1365
c121d94672cb SDL 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 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	1367 /* INDENT-OFF */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1368 DUFFS_LOOP4({
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1369 Uint32 alpha;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1370
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1371 _m_prefetch(srcp + 16);
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1372 _m_prefetch(dstp + 16);
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1373
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1374 alpha = *srcp & amask;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1375 if (alpha == 0) {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1376 /* do nothing */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1377 } else if (alpha == amask) {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1378 /* copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1379 dstp = (srcp & chanmask) \| (*dstp & ~chanmask);
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1380 } else {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1381 src1 = _mm_cvtsi32_si64(srcp); / src(ARGB) -> src1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1382 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1383
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1384 dst1 = _mm_cvtsi32_si64(dstp); / dst(ARGB) -> dst1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1385 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1386
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1387 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1388 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	1389 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	1390 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	1391 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	1392
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1393 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1394 src1 = _mm_sub_pi16(src1, dst1);/* src - dst -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1395 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src - dst) * alpha -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1396 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1397 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst) -> dst1(0A0R0G0B) */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1398 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1399
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1400 dstp = _mm_cvtsi64_si32(dst1); / dst1 -> pixel */
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 ++srcp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1403 ++dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1404 }, 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	1405 /* 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	1406 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	1407 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	1408 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1409 _mm_empty();
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1410 }
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	1411
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	1412 #endif /* __MMX__ */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1413
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1414 /* 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	1415
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1416 /* 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	1417 #define BLEND16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1418 ((((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	1419
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1420 /* blend two 16 bit pixels at 50% */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1421 #define BLEND2x16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1422 (((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	1423 + (s & d & (~(mask \| mask << 16))))
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1424
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	1425 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	1426 Blit16to16SurfaceAlpha128(SDL_BlitInfo * info, Uint16 mask)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1427 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1428 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	1429 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	1430 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1431 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	1432 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1433 int dstskip = info->dst_skip >> 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1434
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	1435 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	1436 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	1437 /*
c121d94672cb SDL 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 * 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	1439 * 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	1440 * 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	1441 */
c121d94672cb SDL 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 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	1443 int w = width;
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1444
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	1445 /* 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	1446 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	1447 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	1448 *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	1449 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	1450 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	1451 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	1452 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1453 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	1454
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	1455 /* 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	1456 prev_sw = ((Uint32 *) srcp)[-1];
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1457
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	1458 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	1459 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	1460 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	1461 dw = (Uint32 ) dstp;
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	1462 #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	1463 s = (prev_sw << 16) + (sw >> 16);
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	1464 #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	1465 s = (prev_sw >> 16) + (sw << 16);
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	1466 #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	1467 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	1468 (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	1469 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	1470 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	1471 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	1472 }
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1473
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	1474 /* 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	1475 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	1476 Uint16 d = *dstp, s;
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	1477 #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	1478 s = (Uint16) prev_sw;
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	1479 #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	1480 s = (Uint16) (prev_sw >> 16);
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	1481 #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	1482 *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	1483 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	1484 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	1485 }
c121d94672cb SDL 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 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	1487 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	1488 } 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	1489 /* 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	1490 int w = width;
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1491
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	1492 /* 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	1493 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	1494 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	1495 *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	1496 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	1497 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	1498 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	1499 }
c121d94672cb SDL 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 /* 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	1501
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	1502 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	1503 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	1504 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	1505 (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	1506 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	1507 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	1508 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	1509 }
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1510
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 /* 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	1512 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	1513 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	1514 *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	1515 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	1516 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	1517 }
c121d94672cb SDL 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 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	1519 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	1520 }
c121d94672cb SDL 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 }
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1522 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1523
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	1524 #ifdef __MMX__
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1525
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1526 /* 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	1527 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	1528 Blit565to565SurfaceAlphaMMX(SDL_BlitInfo * info)
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1529 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1530 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	1531 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	1532 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	1533 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1534 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	1535 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	1536 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1537 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	1538 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1539 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	1540 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	1541
c121d94672cb SDL 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 __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	1543
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	1544 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	1545 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	1546 alpha >>= 3; /* downscale alpha to 5 bits */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1547
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	1548 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	1549 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	1550 /* 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	1551 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	1552 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	1553
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1554 /* 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	1555 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	1556 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	1557
c121d94672cb SDL 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 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	1559 /* INDENT-OFF */
3035 ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request. Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	1560 DUFFS_LOOP_124(
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1561 {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1562 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1563 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1564 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1565 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1566 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1567 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1568 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1569 s = (s \| s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1570 d = (d \| d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1571 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1572 d &= 0x07e0f81f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	1573 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1574 },{
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1575 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1576 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1577 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1578 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1579 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1580 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1581 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1582 s = (s \| s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1583 d = (d \| d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1584 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1585 d &= 0x07e0f81f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	1586 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1587 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1588 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1589 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1590 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1591 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1592 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1593 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1594 s = (s \| s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1595 d = (d \| d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1596 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1597 d &= 0x07e0f81f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	1598 *dstp++ = (Uint16)(d \| d >> 16);
1542 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 src1 = (__m64)srcp; /* 4 src pixels -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1601 dst1 = (__m64)dstp; /* 4 dst pixels -> dst1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1602
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1603 /* red */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1604 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1605 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	1606
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1607 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1608 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	1609
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1610 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1611 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1612 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1613 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1614 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1615 dst2 = _mm_slli_pi16(dst2, 11); /* dst2 << 11 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1616
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1617 mm_res = dst2; /* RED -> mm_res */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1618
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1619 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1620 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1621 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1622
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1623 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1624 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1625
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1626 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1627 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1628 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1629 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1630 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1631
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1632 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	1633
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1634 /* blue */
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_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */
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_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */
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_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> 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 = _mm_or_si64(mm_res, dst2); /* RED \| GREEN \| BLUE -> 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 (__m64)dstp = mm_res; /* mm_res -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1651
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1652 srcp += 4;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1653 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	1654 }, 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	1655 /* 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	1656 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	1657 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	1658 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1659 _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	1660 }
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1661 }
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 /* 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	1664 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	1665 Blit555to555SurfaceAlphaMMX(SDL_BlitInfo * info)
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1666 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1667 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	1668 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	1669 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	1670 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1671 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	1672 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	1673 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1674 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	1675 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1676 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	1677 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	1678
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1679 __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	1680
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	1681 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	1682 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	1683 alpha >>= 3; /* downscale alpha to 5 bits */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1684
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 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	1686 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	1687 /* 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	1688 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	1689 mm_alpha = _mm_slli_si64(mm_alpha, 3);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1690
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	1691 /* 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	1692 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	1693 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	1694 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	1695
c121d94672cb SDL 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 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	1697 /* INDENT-OFF */
3035 ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request. Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	1698 DUFFS_LOOP_124(
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1699 {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1700 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1701 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1702 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1703 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1704 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1705 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1706 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1707 s = (s \| s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1708 d = (d \| d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1709 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1710 d &= 0x03e07c1f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	1711 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1712 },{
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1713 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1714 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1715 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1716 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1717 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1718 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1719 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1720 s = (s \| s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1721 d = (d \| d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1722 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1723 d &= 0x03e07c1f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	1724 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1725 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1726 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1727 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1728 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1729 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1730 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1731 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1732 s = (s \| s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1733 d = (d \| d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1734 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1735 d &= 0x03e07c1f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	1736 *dstp++ = (Uint16)(d \| d >> 16);
1542 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 src1 = (__m64)srcp; /* 4 src pixels -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1739 dst1 = (__m64)dstp; /* 4 dst pixels -> dst1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1740
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1741 /* red -- process the bits in place */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1742 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1743 src2 = _mm_and_si64(src2, rmask); /* src & MASKRED -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1744
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1745 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1746 dst2 = _mm_and_si64(dst2, rmask); /* dst & MASKRED -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1747
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1748 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1749 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1750 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1751 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1752 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1753 dst2 = _mm_and_si64(dst2, rmask); /* dst2 & MASKRED -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1754
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1755 mm_res = dst2; /* RED -> mm_res */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1756
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1757 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1758 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1759 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1760
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1761 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1762 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1763
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1764 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1765 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1766 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1767 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1768 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1769
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1770 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	1771
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1772 /* blue */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1773 src2 = src1; /* src -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1774 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	1775
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1776 dst2 = dst1; /* dst -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1777 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	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_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1782 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> 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, bmask); /* dst2 & MASKBLUE -> 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 = _mm_or_si64(mm_res, dst2); /* RED \| GREEN \| BLUE -> 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 (__m64)dstp = mm_res; /* mm_res -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1789
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1790 srcp += 4;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1791 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	1792 }, 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	1793 /* 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	1794 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	1795 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	1796 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1797 _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	1798 }
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	1799 }
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	1800
17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	1801 #endif /* __MMX__ */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1802
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1803 /* 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	1804 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	1805 Blit565to565SurfaceAlpha(SDL_BlitInfo * info)
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1806 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1807 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	1808 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	1809 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	1810 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1811 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	1812 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	1813 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1814 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	1815 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1816 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	1817 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	1818
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	1819 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	1820 /* INDENT-OFF */
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1821 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1822 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1823 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1824 /*
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1825 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1826 * 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	1827 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1828 */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1829 s = (s \| s << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1830 d = (d \| d << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1831 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1832 d &= 0x07e0f81f;
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1833 *dstp++ = (Uint16)(d \| d >> 16);
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1834 }, 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	1835 /* 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	1836 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	1837 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	1838 }
c121d94672cb SDL 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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1840 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1841
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1842 /* 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	1843 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	1844 Blit555to555SurfaceAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1845 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1846 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	1847 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	1848 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	1849 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1850 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	1851 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	1852 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1853 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	1854 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1855 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	1856 alpha >>= 3; /* downscale alpha to 5 bits */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1857
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	1858 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	1859 /* INDENT-OFF */
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1860 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1861 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1862 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1863 /*
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1864 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1865 * 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	1866 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1867 */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1868 s = (s \| s << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1869 d = (d \| d << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1870 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1871 d &= 0x03e07c1f;
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1872 *dstp++ = (Uint16)(d \| d >> 16);
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1873 }, 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	1874 /* 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	1875 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	1876 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	1877 }
c121d94672cb SDL 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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1879 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1880
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1881 /* 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	1882 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	1883 BlitARGBto565PixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1884 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1885 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	1886 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	1887 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1888 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	1889 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1890 int dstskip = info->dst_skip >> 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1891
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	1892 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	1893 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1894 DUFFS_LOOP4({
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1895 Uint32 s = *srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1896 unsigned alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1897 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1898 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1899 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1900 Benchmark this! */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1901 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1902 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1903 *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	1904 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1905 Uint32 d = *dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1906 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1907 * convert source and destination to G0RAB65565
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1908 * and blend all components at the same time
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1909 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1910 s = ((s & 0xfc00) << 11) + (s >> 8 & 0xf800)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1911 + (s >> 3 & 0x1f);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1912 d = (d \| d << 16) & 0x07e0f81f;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1913 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1914 d &= 0x07e0f81f;
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1915 *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	1916 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1917 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1918 srcp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1919 dstp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1920 }, 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	1921 /* 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	1922 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	1923 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	1924 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1925 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1926
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1927 /* 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	1928 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	1929 BlitARGBto555PixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1930 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1931 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	1932 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	1933 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1934 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	1935 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1936 int dstskip = info->dst_skip >> 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1937
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	1938 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	1939 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1940 DUFFS_LOOP4({
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1941 unsigned alpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1942 Uint32 s = *srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1943 alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1944 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1945 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1946 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1947 Benchmark this! */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1948 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1949 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1950 *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	1951 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1952 Uint32 d = *dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1953 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1954 * convert source and destination to G0RAB65565
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1955 * and blend all components at the same time
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1956 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1957 s = ((s & 0xf800) << 10) + (s >> 9 & 0x7c00)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1958 + (s >> 3 & 0x1f);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1959 d = (d \| d << 16) & 0x03e07c1f;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1960 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1961 d &= 0x03e07c1f;
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1962 *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	1963 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1964 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1965 srcp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1966 dstp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1967 }, 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	1968 /* 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	1969 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	1970 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	1971 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1972 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1973
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1974 /* 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	1975 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	1976 BlitNtoNSurfaceAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1977 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1978 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	1979 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	1980 Uint8 *src = info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1981 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	1982 Uint8 *dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1983 int dstskip = info->dst_skip;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1984 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1985 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	1986 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	1987 int dstbpp = dstfmt->BytesPerPixel;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1988 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	1989 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1990
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	1991 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	1992 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	1993 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1994 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1995 {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	1996 Uint32 Pixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1997 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1998 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1999 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2000 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2001 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2002 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	2003 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	2004 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2005 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2006 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2007 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2008 dst += dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2009 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2010 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	2011 /* 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	2012 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	2013 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	2014 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2015 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2016 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2017
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2018 /* 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	2019 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	2020 BlitNtoNSurfaceAlphaKey(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2021 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2022 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	2023 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	2024 Uint8 *src = info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2025 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	2026 Uint8 *dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2027 int dstskip = info->dst_skip;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2028 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2029 SDL_PixelFormat *dstfmt = info->dst_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2030 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	2031 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	2032 int dstbpp = dstfmt->BytesPerPixel;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2033 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	2034 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2035
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	2036 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	2037 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2038 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2039 {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2040 Uint32 Pixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2041 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2042 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2043 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2044 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2045 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2046 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	2047 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	2048 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	2049 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	2050 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2051 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2052 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2053 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2054 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2055 dst += dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2056 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2057 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	2058 /* 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	2059 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	2060 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	2061 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2062 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2063
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2064 /* 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	2065 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	2066 BlitNtoNPixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2067 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	2068 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	2069 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	2070 Uint8 *src = info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2071 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	2072 Uint8 *dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2073 int dstskip = info->dst_skip;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2074 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2075 SDL_PixelFormat *dstfmt = info->dst_fmt;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2076
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	2077 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	2078 int dstbpp;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2079
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	2080 /* 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	2081 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	2082 dstbpp = dstfmt->BytesPerPixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2083
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	2084 /* 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	2085 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	2086 (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	2087 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	2088 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	2089 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	2090 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2091 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2092 {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	2093 Uint32 Pixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2094 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2095 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2096 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2097 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2098 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2099 unsigned dB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2100 unsigned sA;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2101 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	2102 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	2103 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	2104 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	2105 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	2106 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	2107 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2108 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2109 dst += dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2110 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2111 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	2112 /* 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	2113 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	2114 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	2115 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2116 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2117
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2118
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2119 SDL_BlitFunc
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2120 SDL_CalculateBlitA(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2121 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2122 SDL_PixelFormat *sf = surface->format;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2123 SDL_PixelFormat *df = surface->map->dst->format;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2124
2853 6258fa7cd300 Fixed picking blit function when RLE fails Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	2125 switch (surface->map->info.flags & ~SDL_COPY_RLE_MASK) {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2126 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	2127 /* 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	2128 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	2129 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	2130 return BlitNto1PixelAlpha;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2131
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	2132 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	2133 #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	2134 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	2135 && 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	2136 && 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	2137 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	2138 else
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2139 #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	2140 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	2141 && 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	2142 && ((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	2143 \|\| (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	2144 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	2145 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	2146 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	2147 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	2148 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	2149 return BlitNtoNPixelAlpha;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2150
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	2151 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	2152 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	2153 && 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	2154 && sf->Bmask == df->Bmask && sf->BytesPerPixel == 4) {
2261 c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	2155 #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	2156 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	2157 && 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	2158 && 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	2159 && sf->Ashift % 8 == 0 && sf->Aloss == 0) {
2261 c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	2160 #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	2161 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	2162 return BlitRGBtoRGBPixelAlphaMMX3DNOW;
2261 c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	2163 #endif
c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	2164 #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	2165 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	2166 return BlitRGBtoRGBPixelAlphaMMX;
2261 c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	2167 #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	2168 }
2261 c20476d7d7b3 Enabled 3DNow! intrinsic support Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	2169 #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	2170 if (sf->Amask == 0xff000000) {
1617 b255b4058d37 Patch from Alex to fix reverted code Sam Lantinga <slouken@libsdl.org> parents: 1546 diff changeset	2171 #if SDL_ALTIVEC_BLITTERS
2231 a353684c7cc1 Fixed compiling the Altivec blit code Sam Lantinga <slouken@libsdl.org> parents: 2141 diff changeset	2172 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	2173 return BlitRGBtoRGBPixelAlphaAltivec;
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2174 #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	2175 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	2176 }
c121d94672cb SDL 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 }
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	2178 #if SDL_ALTIVEC_BLITTERS
2231 a353684c7cc1 Fixed compiling the Altivec blit code Sam Lantinga <slouken@libsdl.org> parents: 2141 diff changeset	2179 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	2180 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	2181 else
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2182 #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	2183 return BlitNtoNPixelAlpha;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2184
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	2185 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	2186 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	2187 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	2188 }
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2189 break;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2190
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2191 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	2192 if (sf->Amask == 0) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2193 /* Per-surface alpha blits */
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2194 switch (df->BytesPerPixel) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2195 case 1:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2196 return BlitNto1SurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2197
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2198 case 2:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2199 if (surface->map->identity) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2200 if (df->Gmask == 0x7e0) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2201 #ifdef __MMX__
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2202 if (SDL_HasMMX())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2203 return Blit565to565SurfaceAlphaMMX;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2204 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2205 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2206 return Blit565to565SurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2207 } else if (df->Gmask == 0x3e0) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2208 #ifdef __MMX__
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2209 if (SDL_HasMMX())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2210 return Blit555to555SurfaceAlphaMMX;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2211 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2212 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2213 return Blit555to555SurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2214 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2215 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2216 return BlitNtoNSurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2217
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2218 case 4:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2219 if (sf->Rmask == df->Rmask
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2220 && sf->Gmask == df->Gmask
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2221 && 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	2222 #ifdef __MMX__
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2223 if (sf->Rshift % 8 == 0
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2224 && sf->Gshift % 8 == 0
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2225 && sf->Bshift % 8 == 0 && SDL_HasMMX())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2226 return BlitRGBtoRGBSurfaceAlphaMMX;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2227 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2228 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	2229 #if SDL_ALTIVEC_BLITTERS
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2230 if (SDL_HasAltiVec())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2231 return BlitRGBtoRGBSurfaceAlphaAltivec;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2232 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2233 return BlitRGBtoRGBSurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2234 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2235 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2236 #if SDL_ALTIVEC_BLITTERS
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2237 if ((sf->BytesPerPixel == 4) && SDL_HasAltiVec())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2238 return Blit32to32SurfaceAlphaAltivec;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2239 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2240 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2241 return BlitNtoNSurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2242
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2243 case 3:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2244 default:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2245 return BlitNtoNSurfaceAlpha;
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 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2248 break;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2249
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2250 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	2251 if (sf->Amask == 0) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2252 if (df->BytesPerPixel == 1)
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2253 return BlitNto1SurfaceAlphaKey;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2254 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2255 #if SDL_ALTIVEC_BLITTERS
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2256 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	2257 SDL_HasAltiVec())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2258 return Blit32to32SurfaceAlphaKeyAltivec;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2259 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2260 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2261 return BlitNtoNSurfaceAlphaKey;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2262 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	2263 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2264 }
2267 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 return NULL;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2267 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2268
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	2269 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_blit_A.c @ 3473:7bdc10624cba