sdl-ios-xcode: src/video/SDL_blit

annotate src/video/SDL_blit_A.c @ 5284:96a22141cf86 tip

Changed output directory of Universal libSDL.a for iOS to respect build configurations. Template generator was updated to reflect these changes as well.

author	Eric Wing <ewing . public \|-at-\| gmail . com>
date	Sat, 12 Feb 2011 21:52:30 -0800
parents	b530ef003506
children

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
5267 b530ef003506 Happy 2011! :) Sam Lantinga <slouken@libsdl.org> parents: 5264 diff changeset	3 Copyright (C) 1997-2011 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
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	422 /* 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	423 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	424 BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	425 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	426 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	427 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	428 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	429 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	430 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	431 int dstskip = info->dst_skip >> 2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	432
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	433 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	434 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	435 DUFFS_LOOP4({
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	436 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	437 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	438 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	439 + (s & d & 0x00010101)) \| 0xff000000;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	440 }, 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	441 /* 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	442 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	443 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	444 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	445 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	446
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	447 /* 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	448 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	449 BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo * info)
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	450 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	451 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	452 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	453 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	454 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	455 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	456 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	457 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	458 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	459 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	460 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	461 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	462 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	463 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	464 Uint32 d1;
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	465
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	466 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	467 /* INDENT-OFF */
3035 ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request. Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	468 DUFFS_LOOP4({
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	469 s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	470 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	471 s1 = s & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	472 d1 = d & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	473 d1 = (d1 + ((s1 - d1) * alpha >> 8))
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	474 & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	475 s &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	476 d &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	477 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	478 *dstp = d1 \| d \| 0xff000000;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	479 ++srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	480 ++dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	481 }, 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	482 /* 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	483 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	484 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	485 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	486 }
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	487 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	488
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	489 /* 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	490 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	491 BlitRGBtoRGBPixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	492 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	493 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	494 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	495 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	496 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	497 Uint32 dstp = (Uint32 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	498 int dstskip = info->dst_skip >> 2;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	499
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	500 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	501 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	502 DUFFS_LOOP4({
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	503 Uint32 dalpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	504 Uint32 d;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	505 Uint32 s1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	506 Uint32 d1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	507 Uint32 s = *srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	508 Uint32 alpha = s >> 24;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	509 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	510 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	511 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	512 Benchmark this! */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	513 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	514 if(alpha == SDL_ALPHA_OPAQUE) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	515 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	516 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	517 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	518 * take out the middle component (green), and process
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	519 * the other two in parallel. One multiply less.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	520 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	521 d = *dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	522 dalpha = d & 0xff000000;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	523 s1 = s & 0xff00ff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	524 d1 = d & 0xff00ff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	525 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	526 s &= 0xff00;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	527 d &= 0xff00;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	528 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	529 *dstp = d1 \| d \| dalpha;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	530 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	531 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	532 ++srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	533 ++dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	534 }, 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	535 /* 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	536 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	537 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	538 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	539 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	540
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	541 /* 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	542
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	543 /* 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	544 #define BLEND16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	545 ((((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	546
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	547 /* blend two 16 bit pixels at 50% */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	548 #define BLEND2x16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	549 (((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	550 + (s & d & (~(mask \| mask << 16))))
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	551
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	552 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	553 Blit16to16SurfaceAlpha128(SDL_BlitInfo * info, Uint16 mask)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	554 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	555 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	556 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	557 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	558 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	559 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	560 int dstskip = info->dst_skip >> 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	561
1895 c121d94672cb SDL 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 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	563 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	564 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	565 * 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	566 * 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	567 * 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	568 */
c121d94672cb SDL 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 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	570 int w = width;
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	571
1895 c121d94672cb SDL 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 /* 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	573 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	574 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	575 *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	576 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	577 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	578 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	579 }
c121d94672cb SDL 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 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	581
1895 c121d94672cb SDL 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 /* 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	583 prev_sw = ((Uint32 *) srcp)[-1];
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	584
1895 c121d94672cb SDL 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 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	586 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	587 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	588 dw = (Uint32 ) dstp;
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	589 #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	590 s = (prev_sw << 16) + (sw >> 16);
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	591 #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	592 s = (prev_sw >> 16) + (sw << 16);
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	593 #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	594 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	595 (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	596 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	597 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	598 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	599 }
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	600
1895 c121d94672cb SDL 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 /* 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	602 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	603 Uint16 d = *dstp, s;
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	604 #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	605 s = (Uint16) prev_sw;
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	606 #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	607 s = (Uint16) (prev_sw >> 16);
1443 9ebbbb4ae53b Fixed some OpenWatcom warnings Sam Lantinga <slouken@libsdl.org> parents: 1428 diff changeset	608 #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	609 *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	610 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	611 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	612 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	613 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	614 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	615 } 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	616 /* 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	617 int w = width;
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	618
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	619 /* 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	620 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	621 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	622 *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	623 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	624 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	625 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	626 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	627 /* 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	628
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	629 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	630 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	631 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	632 (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	633 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	634 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	635 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	636 }
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	637
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	638 /* 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	639 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	640 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	641 *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	642 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	643 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	644 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	645 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	646 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	647 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	648 }
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	649 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	650
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	651 #ifdef __MMX__
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	652
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	653 /* 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	654 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	655 Blit565to565SurfaceAlphaMMX(SDL_BlitInfo * info)
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	656 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	657 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	658 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	659 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	660 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	661 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	662 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	663 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	664 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	665 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	666 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	667 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	668
c121d94672cb SDL 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 __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	670
1895 c121d94672cb SDL 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 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	672 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	673 alpha >>= 3; /* downscale alpha to 5 bits */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	674
1895 c121d94672cb SDL 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 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	676 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	677 /* 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	678 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	679 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	680
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	681 /* 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	682 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	683 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	684
c121d94672cb SDL 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 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	686 /* INDENT-OFF */
3035 ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request. Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	687 DUFFS_LOOP_124(
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	688 {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	689 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	690 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	691 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	692 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	693 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	694 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	695 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	696 s = (s \| s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	697 d = (d \| d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	698 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	699 d &= 0x07e0f81f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	700 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	701 },{
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	702 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	703 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	704 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	705 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	706 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	707 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	708 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	709 s = (s \| s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	710 d = (d \| d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	711 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	712 d &= 0x07e0f81f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	713 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	714 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	715 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	716 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	717 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	718 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	719 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	720 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	721 s = (s \| s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	722 d = (d \| d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	723 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	724 d &= 0x07e0f81f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	725 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	726 },{
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	727 src1 = (__m64)srcp; /* 4 src pixels -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	728 dst1 = (__m64)dstp; /* 4 dst pixels -> dst1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	729
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	730 /* red */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	731 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	732 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	733
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	734 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	735 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	736
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	737 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	738 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	739 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	740 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	741 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	742 dst2 = _mm_slli_pi16(dst2, 11); /* dst2 << 11 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	743
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	744 mm_res = dst2; /* RED -> mm_res */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	745
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	746 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	747 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	748 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	749
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	750 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	751 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	752
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	753 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	754 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	755 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	756 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	757 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	758
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	759 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	760
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	761 /* blue */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	762 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	763 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	764
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	765 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	766 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	767
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	768 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	769 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	770 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	771 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	772 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	773 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	774
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	775 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	776
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	777 (__m64)dstp = mm_res; /* mm_res -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	778
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	779 srcp += 4;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	780 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	781 }, 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	782 /* 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	783 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	784 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	785 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	786 _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	787 }
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	788 }
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	789
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	790 /* 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	791 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	792 Blit555to555SurfaceAlphaMMX(SDL_BlitInfo * info)
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	793 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	794 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	795 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	796 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	797 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	798 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	799 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	800 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	801 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	802 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	803 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	804 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	805
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	806 __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	807
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	808 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	809 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	810 alpha >>= 3; /* downscale alpha to 5 bits */
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	811
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	812 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	813 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	814 /* 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	815 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	816 mm_alpha = _mm_slli_si64(mm_alpha, 3);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	817
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	818 /* 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	819 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	820 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	821 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	822
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	823 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	824 /* INDENT-OFF */
3035 ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request. Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	825 DUFFS_LOOP_124(
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	826 {
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	827 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	828 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	829 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	830 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	831 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	832 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	833 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	834 s = (s \| s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	835 d = (d \| d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	836 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	837 d &= 0x03e07c1f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	838 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	839 },{
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	840 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	841 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	842 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	843 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	844 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	845 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	846 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	847 s = (s \| s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	848 d = (d \| d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	849 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	850 d &= 0x03e07c1f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	851 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	852 s = *srcp++;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	853 d = *dstp;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	854 /*
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	855 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	856 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	857 * components at the same time.
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	858 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	859 s = (s \| s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	860 d = (d \| d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	861 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	862 d &= 0x03e07c1f;
1546 4b835e36633d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1542 diff changeset	863 *dstp++ = (Uint16)(d \| d >> 16);
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	864 },{
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	865 src1 = (__m64)srcp; /* 4 src pixels -> src1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	866 dst1 = (__m64)dstp; /* 4 dst pixels -> dst1 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	867
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	868 /* red -- process the bits in place */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	869 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	870 src2 = _mm_and_si64(src2, rmask); /* src & MASKRED -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	871
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	872 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	873 dst2 = _mm_and_si64(dst2, rmask); /* dst & MASKRED -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	874
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	875 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	876 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	877 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	878 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	879 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	880 dst2 = _mm_and_si64(dst2, rmask); /* dst2 & MASKRED -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	881
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	882 mm_res = dst2; /* RED -> mm_res */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	883
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	884 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	885 src2 = src1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	886 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	887
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	888 dst2 = dst1;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	889 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	890
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	891 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	892 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	893 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	894 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	895 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	896
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	897 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	898
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	899 /* blue */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	900 src2 = src1; /* src -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	901 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	902
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	903 dst2 = dst1; /* dst -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	904 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	905
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	906 /* blend */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	907 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	908 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	909 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	910 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	911 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	912
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	913 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	914
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	915 (__m64)dstp = mm_res; /* mm_res -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	916
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	917 srcp += 4;
a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	918 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	919 }, 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	920 /* 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	921 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	922 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	923 }
c121d94672cb SDL 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 _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	925 }
1542 a8bf1aa21020 Fixed bug #15 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	926 }
2255 17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	927
17b2369756be Use MMX intrinsics over GCC inline assembly Sam Lantinga <slouken@libsdl.org> parents: 2232 diff changeset	928 #endif /* __MMX__ */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	929
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	930 /* 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	931 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	932 Blit565to565SurfaceAlpha(SDL_BlitInfo * info)
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	933 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	934 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	935 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	936 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	937 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	938 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	939 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	940 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	941 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	942 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	943 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	944 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	945
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	946 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	947 /* INDENT-OFF */
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	948 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	949 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	950 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	951 /*
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	952 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	953 * 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	954 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	955 */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	956 s = (s \| s << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	957 d = (d \| d << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	958 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	959 d &= 0x07e0f81f;
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	960 *dstp++ = (Uint16)(d \| d >> 16);
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	961 }, 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	962 /* 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	963 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	964 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	965 }
c121d94672cb SDL 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 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	967 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	968
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	969 /* 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	970 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	971 Blit555to555SurfaceAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	972 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	973 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	974 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	975 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	976 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	977 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	978 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	979 Uint16 srcp = (Uint16 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	980 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	981 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	982 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	983 alpha >>= 3; /* downscale alpha to 5 bits */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	984
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	985 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	986 /* INDENT-OFF */
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	987 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	988 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	989 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	990 /*
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	991 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	992 * 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	993 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	994 */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	995 s = (s \| s << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	996 d = (d \| d << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	997 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	998 d &= 0x03e07c1f;
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	999 *dstp++ = (Uint16)(d \| d >> 16);
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1000 }, 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	1001 /* 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	1002 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	1003 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	1004 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1005 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1006 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1007
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1008 /* 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	1009 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	1010 BlitARGBto565PixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1011 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1012 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	1013 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	1014 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1015 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	1016 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1017 int dstskip = info->dst_skip >> 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1018
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1019 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	1020 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1021 DUFFS_LOOP4({
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1022 Uint32 s = *srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1023 unsigned alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1024 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1025 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1026 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1027 Benchmark this! */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1028 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1029 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1030 *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	1031 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1032 Uint32 d = *dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1033 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1034 * convert source and destination to G0RAB65565
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1035 * and blend all components at the same time
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1036 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1037 s = ((s & 0xfc00) << 11) + (s >> 8 & 0xf800)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1038 + (s >> 3 & 0x1f);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1039 d = (d \| d << 16) & 0x07e0f81f;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1040 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1041 d &= 0x07e0f81f;
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1042 *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	1043 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1044 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1045 srcp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1046 dstp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1047 }, 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	1048 /* 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	1049 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	1050 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	1051 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1052 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1053
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1054 /* 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	1055 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	1056 BlitARGBto555PixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1057 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1058 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	1059 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	1060 Uint32 srcp = (Uint32 ) info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1061 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	1062 Uint16 dstp = (Uint16 ) info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1063 int dstskip = info->dst_skip >> 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1064
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1065 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	1066 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1067 DUFFS_LOOP4({
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1068 unsigned alpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1069 Uint32 s = *srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1070 alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1071 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1072 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1073 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1074 Benchmark this! */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1075 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1076 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1077 *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	1078 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1079 Uint32 d = *dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1080 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1081 * convert source and destination to G0RAB65565
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1082 * and blend all components at the same time
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1083 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1084 s = ((s & 0xf800) << 10) + (s >> 9 & 0x7c00)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1085 + (s >> 3 & 0x1f);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1086 d = (d \| d << 16) & 0x03e07c1f;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1087 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1088 d &= 0x03e07c1f;
1428 5f52867ba65c Update for Visual C++ 6.0 Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	1089 *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	1090 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1091 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1092 srcp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1093 dstp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1094 }, 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	1095 /* 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	1096 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	1097 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	1098 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1099 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1100
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1101 /* 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	1102 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	1103 BlitNtoNSurfaceAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1104 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1105 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	1106 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	1107 Uint8 *src = info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1108 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	1109 Uint8 *dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1110 int dstskip = info->dst_skip;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1111 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1112 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	1113 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	1114 int dstbpp = dstfmt->BytesPerPixel;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1115 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	1116 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1117
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1118 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	1119 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	1120 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1121 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1122 {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	1123 Uint32 Pixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1124 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1125 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1126 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1127 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1128 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1129 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	1130 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	1131 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1132 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1133 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1134 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1135 dst += dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1136 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1137 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	1138 /* 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	1139 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	1140 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	1141 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1142 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1143 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1144
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1145 /* 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	1146 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	1147 BlitNtoNSurfaceAlphaKey(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1148 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1149 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	1150 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	1151 Uint8 *src = info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1152 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	1153 Uint8 *dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1154 int dstskip = info->dst_skip;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1155 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1156 SDL_PixelFormat *dstfmt = info->dst_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1157 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	1158 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	1159 int dstbpp = dstfmt->BytesPerPixel;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1160 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	1161 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1162
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1163 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	1164 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1165 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1166 {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	1167 Uint32 Pixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1168 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1169 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1170 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1171 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1172 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1173 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	1174 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	1175 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	1176 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	1177 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1178 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1179 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1180 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1181 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1182 dst += dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1183 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1184 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	1185 /* 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	1186 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	1187 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	1188 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1189 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1190
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1191 /* 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	1192 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	1193 BlitNtoNPixelAlpha(SDL_BlitInfo * info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1194 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2261 diff changeset	1195 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	1196 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	1197 Uint8 *src = info->src;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1198 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	1199 Uint8 *dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1200 int dstskip = info->dst_skip;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1201 SDL_PixelFormat *srcfmt = info->src_fmt;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1202 SDL_PixelFormat *dstfmt = info->dst_fmt;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1203
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1204 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	1205 int dstbpp;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1206
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1207 /* 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	1208 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	1209 dstbpp = dstfmt->BytesPerPixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1210
1895 c121d94672cb SDL 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 /* 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	1212 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	1213 (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	1214 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	1215 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	1216 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	1217 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1218 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1219 {
1162 2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent Ryan C. Gordon <icculus@icculus.org> parents: 1047 diff changeset	1220 Uint32 Pixel;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1221 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1222 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1223 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1224 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1225 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1226 unsigned dB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1227 unsigned sA;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1228 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	1229 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	1230 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	1231 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	1232 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	1233 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	1234 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1235 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1236 dst += dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1237 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1238 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	1239 /* 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	1240 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	1241 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	1242 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1243 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1244
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1245
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1246 SDL_BlitFunc
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1247 SDL_CalculateBlitA(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1248 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1249 SDL_PixelFormat *sf = surface->format;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1250 SDL_PixelFormat *df = surface->map->dst->format;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1251
2853 6258fa7cd300 Fixed picking blit function when RLE fails Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	1252 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	1253 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	1254 /* 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	1255 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	1256 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	1257 return BlitNto1PixelAlpha;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1258
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1259 case 2:
5264 6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support. Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	1260 if (sf->BytesPerPixel == 4 && sf->Amask == 0xff000000
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support. Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	1261 && sf->Gmask == 0xff00
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support. Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	1262 && ((sf->Rmask == 0xff && df->Rmask == 0x1f)
6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support. Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	1263 \|\| (sf->Bmask == 0xff && df->Bmask == 0x1f))) {
1895 c121d94672cb SDL 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 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	1265 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	1266 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	1267 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	1268 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1269 return BlitNtoNPixelAlpha;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1270
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1271 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	1272 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	1273 && 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	1274 && sf->Bmask == df->Bmask && sf->BytesPerPixel == 4) {
5264 6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support. Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	1275 #if defined(__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	1276 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	1277 && 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	1278 && 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	1279 && sf->Ashift % 8 == 0 && sf->Aloss == 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	1280 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	1281 return BlitRGBtoRGBPixelAlphaMMX;
c121d94672cb SDL 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 }
5264 6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support. Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	1283 #endif /* __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	1284 if (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	1285 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	1286 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1287 }
5264 6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support. Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	1288 return BlitNtoNPixelAlpha;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1289
1895 c121d94672cb SDL 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 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	1291 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	1292 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	1293 }
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1294 break;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1295
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1296 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	1297 if (sf->Amask == 0) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1298 /* Per-surface alpha blits */
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1299 switch (df->BytesPerPixel) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1300 case 1:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1301 return BlitNto1SurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1302
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1303 case 2:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1304 if (surface->map->identity) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1305 if (df->Gmask == 0x7e0) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1306 #ifdef __MMX__
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1307 if (SDL_HasMMX())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1308 return Blit565to565SurfaceAlphaMMX;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1309 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1310 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1311 return Blit565to565SurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1312 } else if (df->Gmask == 0x3e0) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1313 #ifdef __MMX__
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1314 if (SDL_HasMMX())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1315 return Blit555to555SurfaceAlphaMMX;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1316 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1317 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1318 return Blit555to555SurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1319 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1320 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1321 return BlitNtoNSurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1322
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1323 case 4:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1324 if (sf->Rmask == df->Rmask
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1325 && sf->Gmask == df->Gmask
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1326 && 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	1327 #ifdef __MMX__
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1328 if (sf->Rshift % 8 == 0
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1329 && sf->Gshift % 8 == 0
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1330 && sf->Bshift % 8 == 0 && SDL_HasMMX())
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1331 return BlitRGBtoRGBSurfaceAlphaMMX;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1332 #endif
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1333 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	1334 return BlitRGBtoRGBSurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1335 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1336 }
5264 6a65c1fc07af Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support. Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	1337 return BlitNtoNSurfaceAlpha;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1338
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1339 case 3:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1340 default:
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1341 return BlitNtoNSurfaceAlpha;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1342 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1343 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1344 break;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1345
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1346 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	1347 if (sf->Amask == 0) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1348 if (df->BytesPerPixel == 1)
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1349 return BlitNto1SurfaceAlphaKey;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1350 else
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1351 return BlitNtoNSurfaceAlphaKey;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1352 }
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1353 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1354 }
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1355
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	1356 return NULL;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1357 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1358
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1795 diff changeset	1359 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_blit_A.c @ 5284:96a22141cf86 tip