sdl-ios-xcode: src/video/SDL_blit

annotate src/video/SDL_blit_A.c @ 4802:f14a8c05f5bb

Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.

author	Eli Gottlieb <eligottlieb@gmail.com>
date	Sun, 18 Jul 2010 23:05:40 -0400
parents	f7b03b6838cb
children	6a65c1fc07af

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
3697 f7b03b6838cb Fixed bug #926 Sam Lantinga <slouken@libsdl.org> parents: 3430 diff changeset	3 Copyright (C) 1997-2010 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 @ 4802:f14a8c05f5bb