sdl-ios-xcode: src/video/SDL_blit

annotate src/video/SDL_blit_A.c @ 1102:f0919504adfd

Revert back change between 1.29 and 1.30

author	Patrice Mandin <patmandin@gmail.com>
date	Wed, 27 Jul 2005 16:30:12 +0000
parents	ffaaf7ecf685
children	2651158f59b8

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
769 b8d311d90021 Updated copyright information for 2004 (Happy New Year!) Sam Lantinga <slouken@libsdl.org> parents: 739 diff changeset	3 Copyright (C) 1997-2004 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
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	6 modify it under the terms of the GNU Library General Public
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	8 version 2 of the License, or (at your option) any later version.
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
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	13 Library General Public License for more details.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	15 You should have received a copy of the GNU Library General Public
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	16 License along with this library; if not, write to the Free
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	22
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23 #ifdef SAVE_RCSID
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 static char rcsid =
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25 "@(#) $Id$";
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 #include <stdio.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 #include "SDL_types.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 #include "SDL_video.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32 #include "SDL_blit.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33
880 9ef41050100c Date: Tue, 30 Mar 2004 21:26:47 -0600 Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	34 #if (defined(i386) \|\| defined(__x86_64__)) && defined(__GNUC__) && defined(USE_ASMBLIT)
9ef41050100c Date: Tue, 30 Mar 2004 21:26:47 -0600 Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	35 #define MMX_ASMBLIT
9ef41050100c Date: Tue, 30 Mar 2004 21:26:47 -0600 Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	36 #endif
9ef41050100c Date: Tue, 30 Mar 2004 21:26:47 -0600 Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	37
739 22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h Sam Lantinga <slouken@libsdl.org> parents: 720 diff changeset	38 /* Function to check the CPU flags */
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h Sam Lantinga <slouken@libsdl.org> parents: 720 diff changeset	39 #include "SDL_cpuinfo.h"
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	40 #ifdef MMX_ASMBLIT
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	41 #include "mmx.h"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	42 #endif
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	43
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44 /* Functions to perform alpha blended blitting */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	45
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	46 /* N->1 blending with per-surface alpha */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	47 static void BlitNto1SurfaceAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	48 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	49 int width = info->d_width;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	50 int height = info->d_height;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	51 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	52 int srcskip = info->s_skip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	53 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54 int dstskip = info->d_skip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55 Uint8 *palmap = info->table;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	56 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	57 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	58 int srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60 const unsigned A = srcfmt->alpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	62 while ( height-- ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	63 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	64 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	65 Uint32 pixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	66 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	67 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	68 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	69 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	70 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	71 unsigned dB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	72 DISEMBLE_RGB(src, srcbpp, srcfmt, pixel, sR, sG, sB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	73 dR = dstfmt->palette->colors[*dst].r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	74 dG = dstfmt->palette->colors[*dst].g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	75 dB = dstfmt->palette->colors[*dst].b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	76 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	77 dR &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	78 dG &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	79 dB &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	80 /* Pack RGB into 8bit pixel */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	81 if ( palmap == NULL ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	82 *dst =((dR>>5)<<(3+2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	83 ((dG>>5)<<(2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	84 ((dB>>6)<<(0));
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	85 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	86 *dst = palmap[((dR>>5)<<(3+2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	87 ((dG>>5)<<(2)) \|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	88 ((dB>>6)<<(0))];
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	89 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	90 dst++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	91 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	92 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	93 width);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	94 src += srcskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	95 dst += dstskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	96 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	97 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	98
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	99 /* N->1 blending with pixel alpha */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	100 static void BlitNto1PixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	101 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	102 int width = info->d_width;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	103 int height = info->d_height;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	104 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	105 int srcskip = info->s_skip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	106 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	107 int dstskip = info->d_skip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	108 Uint8 *palmap = info->table;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	109 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	110 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	111 int srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	112
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	113 /* FIXME: fix alpha bit field expansion here too? */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	114 while ( height-- ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	115 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	116 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	117 Uint32 pixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	118 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	119 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	120 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	121 unsigned sA;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	122 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	123 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	124 unsigned dB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	125 DISEMBLE_RGBA(src,srcbpp,srcfmt,pixel,sR,sG,sB,sA);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	126 dR = dstfmt->palette->colors[*dst].r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	127 dG = dstfmt->palette->colors[*dst].g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	128 dB = dstfmt->palette->colors[*dst].b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	129 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	130 dR &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	131 dG &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	132 dB &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	133 /* Pack RGB into 8bit pixel */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	134 if ( palmap == NULL ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	135 *dst =((dR>>5)<<(3+2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	136 ((dG>>5)<<(2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	137 ((dB>>6)<<(0));
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	138 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	139 *dst = palmap[((dR>>5)<<(3+2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	140 ((dG>>5)<<(2)) \|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141 ((dB>>6)<<(0)) ];
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	142 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	143 dst++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	144 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	145 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	146 width);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	147 src += srcskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	148 dst += dstskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	149 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	150 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	151
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	152 /* colorkeyed N->1 blending with per-surface alpha */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	153 static void BlitNto1SurfaceAlphaKey(SDL_BlitInfo *info)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	154 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	155 int width = info->d_width;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	156 int height = info->d_height;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	157 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	158 int srcskip = info->s_skip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	159 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	160 int dstskip = info->d_skip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	161 Uint8 *palmap = info->table;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	162 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	163 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	164 int srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	165 Uint32 ckey = srcfmt->colorkey;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	166
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	167 const int A = srcfmt->alpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	168
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	169 while ( height-- ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	170 DUFFS_LOOP(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	171 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	172 Uint32 pixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	173 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	174 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	175 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	176 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	177 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	178 unsigned dB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	179 DISEMBLE_RGB(src, srcbpp, srcfmt, pixel, sR, sG, sB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	180 if ( pixel != ckey ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	181 dR = dstfmt->palette->colors[*dst].r;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	182 dG = dstfmt->palette->colors[*dst].g;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	183 dB = dstfmt->palette->colors[*dst].b;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	184 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	185 dR &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	186 dG &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	187 dB &= 0xff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	188 /* Pack RGB into 8bit pixel */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	189 if ( palmap == NULL ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	190 *dst =((dR>>5)<<(3+2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	191 ((dG>>5)<<(2)) \|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	192 ((dB>>6)<<(0));
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	193 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	194 *dst = palmap[((dR>>5)<<(3+2))\|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	195 ((dG>>5)<<(2)) \|
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	196 ((dB>>6)<<(0)) ];
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	197 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	198 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	199 dst++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	200 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	201 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	202 width);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	203 src += srcskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	204 dst += dstskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	205 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	206 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	207
880 9ef41050100c Date: Tue, 30 Mar 2004 21:26:47 -0600 Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	208 #ifdef MMX_ASMBLIT
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	209 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	210 static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	211 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	212 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	213 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	214 Uint32 srcp = (Uint32 )info->s_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	215 int srcskip = info->s_skip >> 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	216 Uint32 dstp = (Uint32 )info->d_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	217 int dstskip = info->d_skip >> 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	218 Uint8 load[8];
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	219
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	220 (Uint64 )load = 0x00fefefe00fefefeULL;/* alpha128 mask */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	221 movq_m2r(load, mm4); / alpha128 mask -> mm4 */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	222 (Uint64 )load = 0x0001010100010101ULL;/* !alpha128 mask */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	223 movq_m2r(load, mm3); / !alpha128 mask -> mm3 */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	224 (Uint64 )load = 0xFF000000FF000000ULL;/* dst alpha mask */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	225 movq_m2r(load, mm7); / dst alpha mask -> mm7 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	226 while(height--) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	227 DUFFS_LOOP_DOUBLE2(
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	228 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	229 Uint32 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	230 Uint32 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	231 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	232 + (s & d & 0x00010101)) \| 0xff000000;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	233 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	234 movq_m2r((dstp), mm2);/ 2 x dst -> mm2(ARGBARGB) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	235 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	236
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	237 movq_m2r((srcp), mm1);/ 2 x src -> mm1(ARGBARGB) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	238 movq_r2r(mm1, mm5); /* 2 x src -> mm5(ARGBARGB) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	239
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	240 pand_r2r(mm4, mm6); /* dst & mask -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	241 pand_r2r(mm4, mm5); /* src & mask -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	242 paddd_r2r(mm6, mm5); /* mm6 + mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	243 psrld_i2r(1, mm5); /* mm5 >> 1 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	244
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	245 pand_r2r(mm1, mm2); /* src & dst -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	246 pand_r2r(mm3, mm2); /* mm2 & !mask -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	247 paddd_r2r(mm5, mm2); /* mm5 + mm2 -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	248 por_r2r(mm7, mm2); /* mm7(full alpha) \| mm2 -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	249 movq_r2m(mm2, (dstp));/ mm2 -> 2 x dst pixels */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	250 dstp += 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	251 srcp += 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	252 }, width);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	253 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	254 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	255 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	256 emms();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	257 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	258
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	259 /* fast RGB888->(A)RGB888 blending with surface alpha */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	260 static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	261 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	262 unsigned alpha = info->src->alpha;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	263 if(alpha == 128) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	264 BlitRGBtoRGBSurfaceAlpha128MMX(info);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	265 } else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	266 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	267 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	268 Uint32 srcp = (Uint32 )info->s_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	269 int srcskip = info->s_skip >> 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	270 Uint32 dstp = (Uint32 )info->d_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	271 int dstskip = info->d_skip >> 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	272 Uint8 load[8] = {alpha, alpha, alpha, alpha,
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	273 alpha, alpha, alpha, alpha};
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	274
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	275 movq_m2r(load, mm4); / alpha -> mm4 */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	276 (Uint64 )load = 0x00FF00FF00FF00FFULL;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	277 movq_m2r(load, mm3); / mask -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	278 pand_r2r(mm3, mm4); /* mm4 & mask -> 0A0A0A0A -> mm4 */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	279 (Uint64 )load = 0xFF000000FF000000ULL;/* dst alpha mask */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	280 movq_m2r(load, mm7); / dst alpha mask -> mm7 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	281
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	282 while(height--) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	283 DUFFS_LOOP_DOUBLE2({
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	284 /* One Pixel Blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	285 movd_m2r((srcp), mm1);/ src(ARGB) -> mm1 (0000ARGB)*/
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	286 punpcklbw_r2r(mm1, mm1); /* AARRGGBB -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	287 pand_r2r(mm3, mm1); /* 0A0R0G0B -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	288
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	289 movd_m2r((dstp), mm2);/ dst(ARGB) -> mm2 (0000ARGB)*/
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	290 movq_r2r(mm2, mm6);/* dst(ARGB) -> mm6 (0000ARGB)*/
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	291 punpcklbw_r2r(mm2, mm2); /* AARRGGBB -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	292 pand_r2r(mm3, mm2); /* 0A0R0G0B -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	293
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	294 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	295 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	296 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	297 paddw_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	298 pand_r2r(mm3, mm2); /* 0A0R0G0B -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	299 packuswb_r2r(mm2, mm2); /* ARGBARGB -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	300 por_r2r(mm7, mm2); /* mm7(full alpha) \| mm2 -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	301 movd_r2m(mm2, dstp);/ mm2 -> pixel */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	302 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	303 ++dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	304 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	305 /* Two Pixels Blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	306 movq_m2r((srcp), mm0);/ 2 x src -> mm0(ARGBARGB)*/
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	307 movq_r2r(mm0, mm1); /* 2 x src -> mm1(ARGBARGB) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	308 punpcklbw_r2r(mm0, mm0); /* low - AARRGGBB -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	309 pand_r2r(mm3, mm0); /* 0A0R0G0B -> mm0(src1) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	310 punpckhbw_r2r(mm1, mm1); /* high - AARRGGBB -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	311 pand_r2r(mm3, mm1); /* 0A0R0G0B -> mm1(src2) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	312
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	313 movq_m2r((dstp), mm2);/ 2 x dst -> mm2(ARGBARGB) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	314 movq_r2r(mm2, mm5); /* 2 x dst -> mm5(ARGBARGB) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	315 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	316 punpcklbw_r2r(mm2, mm2); /* low - AARRGGBB -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	317 punpckhbw_r2r(mm6, mm6); /* high - AARRGGBB -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	318 pand_r2r(mm3, mm2); /* 0A0R0G0B -> mm2(dst1) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	319
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	320 psubw_r2r(mm2, mm0);/* src1 - dst1 -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	321 pmullw_r2r(mm4, mm0); /* mm0 * alpha -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	322 pand_r2r(mm3, mm6); /* 0A0R0G0B -> mm6(dst2) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	323 psrlw_i2r(8, mm0); /* mm0 >> 8 -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	324 psubw_r2r(mm6, mm1);/* src2 - dst2 -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	325 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	326 paddw_r2r(mm0, mm2); /* mm0 + mm2(dst1) -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	327 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	328 pand_r2r(mm3, mm2); /* 0A0R0G0B -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	329 paddw_r2r(mm1, mm6); /* mm1 + mm6(dst2) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	330 pand_r2r(mm3, mm6); /* 0A0R0G0B -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	331 packuswb_r2r(mm2, mm2); /* ARGBARGB -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	332 packuswb_r2r(mm6, mm6); /* ARGBARGB -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	333 psrlq_i2r(32, mm2); /* mm2 >> 32 -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	334 psllq_i2r(32, mm6); /* mm6 << 32 -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	335 por_r2r(mm6, mm2); /* mm6 \| mm2 -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	336 por_r2r(mm7, mm2); /* mm7(full alpha) \| mm2 -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	337 movq_r2m(mm2, dstp);/ mm2 -> 2 x pixel */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	338 srcp += 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	339 dstp += 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	340 }, width);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	341 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	342 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	343 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	344 emms();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	345 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	346 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	347
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	348 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	349 static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	350 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	351 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	352 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	353 Uint32 srcp = (Uint32 )info->s_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	354 int srcskip = info->s_skip >> 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	355 Uint32 dstp = (Uint32 )info->d_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	356 int dstskip = info->d_skip >> 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	357 Uint32 alpha = 0;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	358 Uint8 load[8];
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	359
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	360 (Uint64 )load = 0x00FF00FF00FF00FFULL;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	361 movq_m2r(load, mm3); / mask -> mm2 */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	362 (Uint64 )load = 0x00FF000000000000ULL;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	363 movq_m2r(load, mm7); / dst alpha mask -> mm2 */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	364 (Uint64 )load = 0x00FFFFFF00FFFFFFULL;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	365 movq_m2r(load, mm0); / alpha 255 mask -> mm0 */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	366 (Uint64 )load = 0xFF000000FF000000ULL;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	367 movq_m2r(load, mm6); / alpha 255 !mask -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	368 while(height--) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	369 DUFFS_LOOP4({
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	370 alpha = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	371 alpha >>= 24;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	372 /* FIXME: Here we special-case opaque alpha since the
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	373 compositioning used (>>8 instead of /255) doesn't handle
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	374 it correctly. Also special-case alpha=0 for speed?
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	375 Benchmark this! */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	376 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	377 if(alpha == SDL_ALPHA_OPAQUE) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	378 movd_m2r((srcp), mm1);/ src(ARGB) -> mm1 (0000ARGB)*/
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	379 movd_m2r((dstp), mm2);/ dst(ARGB) -> mm2 (0000ARGB)*/
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	380 pand_r2r(mm0, mm1);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	381 pand_r2r(mm6, mm2);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	382 por_r2r(mm1, mm2);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	383 movd_r2m(mm2, (*dstp));
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	384 } else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	385 movd_m2r((srcp), mm1);/ src(ARGB) -> mm1 (0000ARGB)*/
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	386 punpcklbw_r2r(mm1, mm1); /* AARRGGBB -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	387 pand_r2r(mm3, mm1); /* 0A0R0G0B -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	388
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	389 movd_m2r((dstp), mm2);/ dst(ARGB) -> mm2 (0000ARGB)*/
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	390 punpcklbw_r2r(mm2, mm2); /* AARRGGBB -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	391 pand_r2r(mm3, mm2); /* 0A0R0G0B -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	392
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	393 movq_r2r(mm2, mm5);/* mm2(0A0R0G0B) -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	394 pand_r2r(mm7, mm5); /* mm5 & dst alpha mask -> mm5(0A000000) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	395 psrlq_i2r(24, mm5); /* mm5 >> 24 -> mm5 (0000A000)*/
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	396
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	397 movq_r2r(mm1, mm4);/* mm1(0A0R0G0B) -> mm4 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	398 psrlq_i2r(48, mm4); /* mm4 >> 48 -> mm4(0000000A) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	399 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	400 punpcklwd_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	401
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	402 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	403 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	404 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	405 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	406 paddw_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	407 pand_r2r(mm3, mm2); /* 0A0R0G0B -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	408 packuswb_r2r(mm2, mm2); /* ARGBARGB -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	409 pand_r2r(mm0, mm2); /* 0RGB0RGB -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	410 por_r2r(mm5, mm2); /* dst alpha \| mm2 -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	411 movd_r2m(mm2, dstp);/ mm2 -> dst */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	412 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	413 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	414 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	415 ++dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	416 }, width);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	417 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	418 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	419 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	420 emms();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	421 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	422 #endif
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	423
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	424 #ifdef USE_ALTIVEC_BLITTERS
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	425 #include <assert.h>
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	426 #define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	427 #define VECPRINT(msg, v) do { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	428 vector unsigned int tmpvec = (vector unsigned int)(v); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	429 unsigned int vp = (unsigned int )&tmpvec; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	430 printf("%s = %08X %08X %08X %08X\n", msg, vp[0], vp[1], vp[2], vp[3]); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	431 } while (0)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	432
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	433 /* the permuation vector that takes the high bytes out of all the appropriate shorts
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	434 (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	435 0x00, 0x10, 0x02, 0x12,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	436 0x04, 0x14, 0x06, 0x16,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	437 0x08, 0x18, 0x0A, 0x1A,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	438 0x0C, 0x1C, 0x0E, 0x1E );
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	439 */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	440 #define VEC_MERGE_PERMUTE() (vec_add(vec_lvsl(0, (int*)NULL), (vector unsigned char)vec_splat_u16(0x0F)))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	441 #define VEC_U32_24() (vec_add(vec_splat_u32(12), vec_splat_u32(12)))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	442 #define VEC_ALPHA_MASK() ((vector unsigned char)vec_sl((vector unsigned int)vec_splat_s8(-1), VEC_U32_24()))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	443 #define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	444 ? vec_lvsl(0, src) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	445 : vec_add(vec_lvsl(8, src), vec_splat_u8(8)))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	446
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	447
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	448 #define VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1_16, v8_16) do { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	449 /* vtemp1 contains source AAGGAAGGAAGGAAGG */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	450 vector unsigned short vtemp1 = vec_mule(vs, valpha); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	451 /* vtemp2 contains source RRBBRRBBRRBBRRBB */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	452 vector unsigned short vtemp2 = vec_mulo(vs, valpha); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	453 /* valpha2 is 255-alpha */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	454 vector unsigned char valpha2 = vec_nor(valpha, valpha); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	455 /* vtemp3 contains dest AAGGAAGGAAGGAAGG */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	456 vector unsigned short vtemp3 = vec_mule(vd, valpha2); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	457 /* vtemp4 contains dest RRBBRRBBRRBBRRBB */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	458 vector unsigned short vtemp4 = vec_mulo(vd, valpha2); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	459 /* add source and dest */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	460 vtemp1 = vec_add(vtemp1, vtemp3); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	461 vtemp2 = vec_add(vtemp2, vtemp4); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	462 /* vtemp1 = (vtemp1 + 1) + ((vtemp1 + 1) >> 8) */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	463 vtemp1 = vec_add(vtemp1, v1_16); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	464 vtemp3 = vec_sr(vtemp1, v8_16); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	465 vtemp1 = vec_add(vtemp1, vtemp3); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	466 /* vtemp2 = (vtemp2 + 1) + ((vtemp2 + 1) >> 8) */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	467 vtemp2 = vec_add(vtemp2, v1_16); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	468 vtemp4 = vec_sr(vtemp2, v8_16); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	469 vtemp2 = vec_add(vtemp2, vtemp4); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	470 /* (>>8) and get ARGBARGBARGBARGB */ \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	471 vd = (vector unsigned char)vec_perm(vtemp1, vtemp2, mergePermute); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	472 } while (0)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	473
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	474 /* Calculate the permute vector used for 32->32 swizzling */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	475 static vector unsigned char calc_swizzle32(const SDL_PixelFormat *srcfmt,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	476 const SDL_PixelFormat *dstfmt)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	477 {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	478 /*
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	479 * We have to assume that the bits that aren't used by other
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	480 * colors is alpha, and it's one complete byte, since some formats
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	481 * leave alpha with a zero mask, but we should still swizzle the bits.
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	482 */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	483 /* ARGB */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	484 const static struct SDL_PixelFormat default_pixel_format = {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	485 NULL, 0, 0,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	486 0, 0, 0, 0,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	487 16, 8, 0, 24,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	488 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	489 0, 0};
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	490 if (!srcfmt) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	491 srcfmt = &default_pixel_format;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	492 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	493 if (!dstfmt) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	494 dstfmt = &default_pixel_format;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	495 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	496 vector unsigned char plus = (vector unsigned char)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	497 ( 0x00, 0x00, 0x00, 0x00,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	498 0x04, 0x04, 0x04, 0x04,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	499 0x08, 0x08, 0x08, 0x08,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	500 0x0C, 0x0C, 0x0C, 0x0C );
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	501 vector unsigned char vswiz;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	502 vector unsigned int srcvec;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	503 #define RESHIFT(X) (3 - ((X) >> 3))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	504 Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	505 Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	506 Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	507 Uint32 amask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	508 /* Use zero for alpha if either surface doesn't have alpha */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	509 if (dstfmt->Amask) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	510 amask = ((srcfmt->Amask) ? RESHIFT(srcfmt->Ashift) : 0x10) << (dstfmt->Ashift);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	511 } else {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	512 amask = 0x10101010 & ((dstfmt->Rmask \| dstfmt->Gmask \| dstfmt->Bmask) ^ 0xFFFFFFFF);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	513 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	514 #undef RESHIFT
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	515 ((unsigned int *)&srcvec)[0] = (rmask \| gmask \| bmask \| amask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	516 vswiz = vec_add(plus, (vector unsigned char)vec_splat(srcvec, 0));
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	517 return(vswiz);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	518 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	519
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	520 static void Blit32to565PixelAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	521 {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	522 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	523 Uint8 src = (Uint8 )info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	524 int srcskip = info->s_skip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	525 Uint8 dst = (Uint8 )info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	526 int dstskip = info->d_skip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	527 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	528
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	529 vector unsigned char v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	530 vector unsigned short v8_16 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	531 vector unsigned short v1_16 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	532 vector unsigned short v2_16 = vec_splat_u16(2);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	533 vector unsigned short v3_16 = vec_splat_u16(3);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	534 vector unsigned int v8_32 = vec_splat_u32(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	535 vector unsigned int v16_32 = vec_add(v8_32, v8_32);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	536 vector unsigned short v3f = (vector unsigned short)(
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	537 0x003f, 0x003f, 0x003f, 0x003f,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	538 0x003f, 0x003f, 0x003f, 0x003f);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	539 vector unsigned short vfc = (vector unsigned short)(
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	540 0x00fc, 0x00fc, 0x00fc, 0x00fc,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	541 0x00fc, 0x00fc, 0x00fc, 0x00fc);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	542
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	543 /*
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	544 0x10 - 0x1f is the alpha
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	545 0x00 - 0x0e evens are the red
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	546 0x01 - 0x0f odds are zero
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	547 */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	548 vector unsigned char vredalpha1 = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	549 0x10, 0x00, 0x01, 0x01,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	550 0x10, 0x02, 0x01, 0x01,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	551 0x10, 0x04, 0x01, 0x01,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	552 0x10, 0x06, 0x01, 0x01
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	553 );
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	554 vector unsigned char vredalpha2 = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	555 vec_add((vector unsigned int)vredalpha1, vec_sl(v8_32, v16_32))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	556 );
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	557 /*
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	558 0x00 - 0x0f is ARxx ARxx ARxx ARxx
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	559 0x11 - 0x0f odds are blue
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	560 */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	561 vector unsigned char vblue1 = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	562 0x00, 0x01, 0x02, 0x11,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	563 0x04, 0x05, 0x06, 0x13,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	564 0x08, 0x09, 0x0a, 0x15,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	565 0x0c, 0x0d, 0x0e, 0x17
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	566 );
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	567 vector unsigned char vblue2 = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	568 vec_add((vector unsigned int)vblue1, v8_32)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	569 );
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	570 /*
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	571 0x00 - 0x0f is ARxB ARxB ARxB ARxB
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	572 0x10 - 0x0e evens are green
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	573 */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	574 vector unsigned char vgreen1 = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	575 0x00, 0x01, 0x10, 0x03,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	576 0x04, 0x05, 0x12, 0x07,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	577 0x08, 0x09, 0x14, 0x0b,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	578 0x0c, 0x0d, 0x16, 0x0f
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	579 );
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	580 vector unsigned char vgreen2 = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	581 vec_add((vector unsigned int)vgreen1, vec_sl(v8_32, v8_32))
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	582 );
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	583 vector unsigned char vgmerge = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	584 0x00, 0x02, 0x00, 0x06,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	585 0x00, 0x0a, 0x00, 0x0e,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	586 0x00, 0x12, 0x00, 0x16,
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	587 0x00, 0x1a, 0x00, 0x1e);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	588 vector unsigned char mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	589 vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	590 vector unsigned char valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC));
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	591
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	592 vector unsigned short vf800 = (vector unsigned short)vec_splat_u8(-7);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	593 vf800 = vec_sl(vf800, vec_splat_u16(8));
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	594
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	595 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	596 int extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	597 vector unsigned char valigner;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	598 vector unsigned char vsrc;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	599 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	600 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	601
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	602 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	603 while (condition) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	604 Uint32 pixel; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	605 unsigned sR, sG, sB, dR, dG, dB, sA; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	606 DISEMBLE_RGBA(src, 4, srcfmt, pixel, sR, sG, sB, sA); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	607 if(sA) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	608 unsigned short dstpixel = ((unsigned short )dst); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	609 dR = (dstpixel >> 8) & 0xf8; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	610 dG = (dstpixel >> 3) & 0xfc; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	611 dB = (dstpixel << 3) & 0xf8; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	612 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	613 ((unsigned short )dst) = ( \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	614 ((dR & 0xf8) << 8) \| ((dG & 0xfc) << 3) \| (dB >> 3) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	615 ); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	616 } \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	617 src += 4; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	618 dst += 2; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	619 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	620 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	621 ONE_PIXEL_BLEND((UNALIGNED_PTR(dst)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	622 extrawidth = (width % 8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	623 valigner = VEC_ALIGNER(src);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	624 vsrc = (vector unsigned char)vec_ld(0, src);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	625 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	626 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	627 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	628 vector unsigned char vsrc1, vsrc2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	629 vector unsigned char vdst1, vdst2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	630 vector unsigned short vR, vG, vB;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	631 vector unsigned short vpixel, vrpixel, vgpixel, vbpixel;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	632
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	633 /* Load 8 pixels from src as ARGB */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	634 voverflow = (vector unsigned char)vec_ld(15, src);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	635 vsrc = vec_perm(vsrc, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	636 vsrc1 = vec_perm(vsrc, vsrc, vpermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	637 src += 16;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	638 vsrc = (vector unsigned char)vec_ld(15, src);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	639 voverflow = vec_perm(voverflow, vsrc, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	640 vsrc2 = vec_perm(voverflow, voverflow, vpermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	641 src += 16;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	642
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	643 /* Load 8 pixels from dst as XRGB */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	644 voverflow = vec_ld(0, dst);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	645 vR = vec_and((vector unsigned short)voverflow, vf800);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	646 vB = vec_sl((vector unsigned short)voverflow, v3_16);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	647 vG = vec_sl(vB, v2_16);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	648 vdst1 = (vector unsigned char)vec_perm((vector unsigned char)vR, (vector unsigned char)vR, vredalpha1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	649 vdst1 = vec_perm(vdst1, (vector unsigned char)vB, vblue1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	650 vdst1 = vec_perm(vdst1, (vector unsigned char)vG, vgreen1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	651 vdst2 = (vector unsigned char)vec_perm((vector unsigned char)vR, (vector unsigned char)vR, vredalpha2);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	652 vdst2 = vec_perm(vdst2, (vector unsigned char)vB, vblue2);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	653 vdst2 = vec_perm(vdst2, (vector unsigned char)vG, vgreen2);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	654
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	655 /* Alpha blend 8 pixels as ARGB */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	656 valpha = vec_perm(vsrc1, v0, valphaPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	657 VEC_MULTIPLY_ALPHA(vsrc1, vdst1, valpha, mergePermute, v1_16, v8_16);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	658 valpha = vec_perm(vsrc2, v0, valphaPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	659 VEC_MULTIPLY_ALPHA(vsrc2, vdst2, valpha, mergePermute, v1_16, v8_16);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	660
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	661 /* Convert 8 pixels to 565 */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	662 vpixel = (vector unsigned short)vec_packpx((vector unsigned int)vdst1, (vector unsigned int)vdst2);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	663 vgpixel = (vector unsigned short)vec_perm(vdst1, vdst2, vgmerge);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	664 vgpixel = vec_and(vgpixel, vfc);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	665 vgpixel = vec_sl(vgpixel, v3_16);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	666 vrpixel = vec_sl(vpixel, v1_16);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	667 vrpixel = vec_and(vrpixel, vf800);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	668 vbpixel = vec_and(vpixel, v3f);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	669 vdst1 = vec_or((vector unsigned char)vrpixel, (vector unsigned char)vgpixel);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	670 vdst1 = vec_or(vdst1, (vector unsigned char)vbpixel);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	671
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	672 /* Store 8 pixels */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	673 vec_st(vdst1, 0, dst);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	674
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	675 width -= 8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	676 dst += 16;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	677 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	678 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	679 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	680 src += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	681 dst += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	682 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	683 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	684
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	685 static void Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	686 {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	687 unsigned alpha = info->src->alpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	688 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	689 Uint32 srcp = (Uint32 )info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	690 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	691 Uint32 dstp = (Uint32 )info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	692 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	693 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	694 SDL_PixelFormat *dstfmt = info->dst;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	695 unsigned sA = srcfmt->alpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	696 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	697 Uint32 rgbmask = srcfmt->Rmask \| srcfmt->Gmask \| srcfmt->Bmask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	698 Uint32 ckey = info->src->colorkey;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	699 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	700 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	701 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	702 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	703 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	704 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	705 vector unsigned char vbits;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	706 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	707 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	708 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	709 vector unsigned int vckey;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	710 vector unsigned int vrgbmask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	711
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	712 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	713 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	714 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	715 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	716
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	717 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	718 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	719
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	720 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	721 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	722 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	723
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	724 /* set a vector full of alpha and 255-alpha */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	725 ((unsigned char *)&valpha)[0] = alpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	726 valpha = vec_splat(valpha, 0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	727 vbits = (vector unsigned char)vec_splat_s8(-1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	728
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	729 ckey &= rgbmask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	730 ((unsigned int *)&vckey)[0] = ckey;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	731 vckey = vec_splat(vckey, 0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	732 ((unsigned int *)&vrgbmask)[0] = rgbmask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	733 vrgbmask = vec_splat(vrgbmask, 0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	734
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	735 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	736 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	737 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	738 while (condition) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	739 Uint32 pixel; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	740 unsigned sR, sG, sB, dR, dG, dB; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	741 RETRIEVE_RGB_PIXEL(((Uint8 *)srcp), 4, pixel); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	742 if(sA && pixel != ckey) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	743 RGB_FROM_PIXEL(pixel, srcfmt, sR, sG, sB); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	744 DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, pixel, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	745 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	746 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	747 } \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	748 ((Uint8 *)dstp) += 4; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	749 ((Uint8 *)srcp) += 4; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	750 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	751 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	752 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	753 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	754 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	755 vector unsigned char valigner = VEC_ALIGNER(srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	756 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	757 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	758 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	759 vector unsigned char vsel;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	760 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	761 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	762 vector unsigned char vd_orig;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	763
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	764 /* s = srcp /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	765 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	766 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	767
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	768 /* vsel is set for items that match the key */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	769 vsel = (vector unsigned char)vec_and((vector unsigned int)vs, vrgbmask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	770 vsel = (vector unsigned char)vec_cmpeq((vector unsigned int)vsel, vckey);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	771
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	772 /* permute to source format */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	773 vs = vec_perm(vs, valpha, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	774
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	775 /* d = dstp /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	776 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	777 vd_orig = vd = vec_perm(vd, v0, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	778
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	779 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	780
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	781 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	782 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	783
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	784 /* mask out color key */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	785 vd = vec_sel(vd, vd_orig, vsel);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	786
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	787 /* permute to dest format */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	788 vd = vec_perm(vd, vbits, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	789
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	790 /* dstp = res /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	791 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	792
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	793 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	794 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	795 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	796 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	797 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	798 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	799 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	800 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	801
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	802 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	803 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	804 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	805 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	806
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	807
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	808 static void Blit32to32PixelAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	809 {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	810 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	811 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	812 Uint32 srcp = (Uint32 )info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	813 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	814 Uint32 dstp = (Uint32 )info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	815 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	816 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	817 SDL_PixelFormat *dstfmt = info->dst;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	818 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	819 vector unsigned char valphaPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	820 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	821 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	822 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	823 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	824 vector unsigned char vpixelmask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	825 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	826 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	827 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	828
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	829 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	830 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	831 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	832 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	833 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	834 valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC));
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	835 vpixelmask = vec_nor(valphamask, v0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	836 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	837 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	838 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	839
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	840 while ( height-- ) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	841 width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	842 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	843 Uint32 pixel; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	844 unsigned sR, sG, sB, dR, dG, dB, sA, dA; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	845 DISEMBLE_RGBA((Uint8 *)srcp, 4, srcfmt, pixel, sR, sG, sB, sA); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	846 if(sA) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	847 DISEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, pixel, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	848 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	849 ASSEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	850 } \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	851 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	852 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	853 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	854 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	855 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	856 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	857 // vsrcPermute
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	858 // vdstPermute
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	859 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	860 vector unsigned char valigner = VEC_ALIGNER(srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	861 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	862 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	863 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	864 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	865 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	866 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	867 vector unsigned char vdstalpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	868 /* s = srcp /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	869 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	870 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	871 vs = vec_perm(vs, v0, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	872
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	873 valpha = vec_perm(vs, v0, valphaPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	874
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	875 /* d = dstp /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	876 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	877 vd = vec_perm(vd, v0, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	878 vdstalpha = vec_and(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	879
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	880 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	881
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	882 /* set the alpha to the dest alpha */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	883 vd = vec_and(vd, vpixelmask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	884 vd = vec_or(vd, vdstalpha);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	885 vd = vec_perm(vd, v0, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	886
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	887 /* dstp = res /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	888 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	889
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	890 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	891 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	892 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	893 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	894
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	895 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	896 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	897 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	898 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	899 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	900 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	901 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	902 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	903
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	904 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	905 static void BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	906 {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	907 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	908 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	909 Uint32 srcp = (Uint32 )info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	910 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	911 Uint32 dstp = (Uint32 )info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	912 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	913 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	914 vector unsigned char valphaPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	915 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	916 vector unsigned char vpixelmask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	917 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	918 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	919 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	920 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	921 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	922 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	923 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	924 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	925 valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC));
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	926
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	927
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	928 vpixelmask = vec_nor(valphamask, v0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	929 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	930 width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	931 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	932 while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	933 Uint32 dalpha; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	934 Uint32 d; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	935 Uint32 s1; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	936 Uint32 d1; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	937 Uint32 s = *srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	938 Uint32 alpha = s >> 24; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	939 if(alpha) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	940 if(alpha == SDL_ALPHA_OPAQUE) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	941 dstp = (s & 0x00ffffff) \| (dstp & 0xff000000); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	942 } else { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	943 d = *dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	944 dalpha = d & 0xff000000; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	945 s1 = s & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	946 d1 = d & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	947 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	948 s &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	949 d &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	950 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	951 *dstp = d1 \| d \| dalpha; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	952 } \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	953 } \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	954 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	955 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	956 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	957 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	958 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	959 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	960 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	961 vector unsigned char valigner = VEC_ALIGNER(srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	962 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	963 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	964 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	965 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	966 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	967 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	968 vector unsigned char vdstalpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	969 /* s = srcp /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	970 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	971 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	972
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	973 valpha = vec_perm(vs, v0, valphaPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	974
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	975 /* d = dstp /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	976 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	977 vdstalpha = vec_and(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	978
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	979 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	980
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	981 /* set the alpha to the dest alpha */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	982 vd = vec_and(vd, vpixelmask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	983 vd = vec_or(vd, vdstalpha);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	984
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	985 /* dstp = res /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	986 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	987
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	988 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	989 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	990 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	991 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	992 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	993 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	994 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	995 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	996 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	997 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	998 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	999 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1000
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1001 static void Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1002 {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1003 /* XXX : 6 */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1004 unsigned alpha = info->src->alpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1005 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1006 Uint32 srcp = (Uint32 )info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1007 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1008 Uint32 dstp = (Uint32 )info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1009 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1010 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1011 SDL_PixelFormat *dstfmt = info->dst;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1012 unsigned sA = srcfmt->alpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1013 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1014 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1015 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1016 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1017 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1018 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1019 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1020 vector unsigned char vbits;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1021 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1022 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1023
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1024 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1025 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1026 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1027
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1028 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1029 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1030
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1031 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1032 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1033 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1034
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1035 /* set a vector full of alpha and 255-alpha */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1036 ((unsigned char *)&valpha)[0] = alpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1037 valpha = vec_splat(valpha, 0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1038 vbits = (vector unsigned char)vec_splat_s8(-1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1039
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1040 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1041 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1042 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1043 Uint32 pixel; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1044 unsigned sR, sG, sB, dR, dG, dB; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1045 DISEMBLE_RGB(((Uint8 *)srcp), 4, srcfmt, pixel, sR, sG, sB); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1046 DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, pixel, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1047 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1048 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1049 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1050 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1051 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1052 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1053 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1054 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1055 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1056 vector unsigned char valigner = vec_lvsl(0, srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1057 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1058 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1059 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1060 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1061 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1062
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1063 /* s = srcp /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1064 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1065 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1066 vs = vec_perm(vs, valpha, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1067
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1068 /* d = dstp /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1069 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1070 vd = vec_perm(vd, vd, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1071
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1072 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1073
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1074 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1075 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1076 vd = vec_perm(vd, vbits, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1077
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1078 /* dstp = res /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1079 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1080
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1081 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1082 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1083 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1084 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1085 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1086 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1087 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1088 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1089
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1090 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1091 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1092 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1093
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1094 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1095
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1096
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1097 /* fast RGB888->(A)RGB888 blending */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1098 static void BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1099 {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1100 unsigned alpha = info->src->alpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1101 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1102 Uint32 srcp = (Uint32 )info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1103 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1104 Uint32 dstp = (Uint32 )info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1105 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1106 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1107 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1108 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1109 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1110 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1111
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1112 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1113 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1114 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1115
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1116 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1117 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1118
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1119 /* set a vector full of alpha and 255-alpha */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1120 ((unsigned char *)&valpha)[0] = alpha;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1121 valpha = vec_splat(valpha, 0);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1122
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1123 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1124 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1125 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1126 Uint32 s = *srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1127 Uint32 d = *dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1128 Uint32 s1 = s & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1129 Uint32 d1 = d & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1130 d1 = (d1 + ((s1 - d1) * alpha >> 8)) \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1131 & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1132 s &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1133 d &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1134 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1135 *dstp = d1 \| d \| 0xff000000; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1136 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1137 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1138 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1139 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1140 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1141 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1142 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1143 vector unsigned char valigner = VEC_ALIGNER(srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1144 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1145 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1146 while (width) {
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1147 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1148 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1149
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1150 /* s = srcp /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1151 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1152 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1153
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1154 /* d = dstp /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1155 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1156
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1157 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1158
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1159 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1160 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1161
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1162 /* dstp = res /
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1163 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1164
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1165 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1166 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1167 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1168 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1169 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1170 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1171 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1172 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1173
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1174 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1175 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1176 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1177 }
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1178 #endif /* USE_ALTIVEC_BLITTERS */
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	1179
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1180 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1181 static void BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo *info)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1182 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1183 int width = info->d_width;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1184 int height = info->d_height;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1185 Uint32 srcp = (Uint32 )info->s_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1186 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1187 Uint32 dstp = (Uint32 )info->d_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1188 int dstskip = info->d_skip >> 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1189
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1190 while(height--) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1191 DUFFS_LOOP4({
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1192 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1193 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1194 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1195 + (s & d & 0x00010101)) \| 0xff000000;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1196 }, width);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1197 srcp += srcskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1198 dstp += dstskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1199 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1200 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1201
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1202 /* fast RGB888->(A)RGB888 blending with surface alpha */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1203 static void BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo *info)
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1204 {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1205 unsigned alpha = info->src->alpha;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1206 if(alpha == 128) {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1207 BlitRGBtoRGBSurfaceAlpha128(info);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1208 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1209 int width = info->d_width;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1210 int height = info->d_height;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1211 Uint32 srcp = (Uint32 )info->s_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1212 int srcskip = info->s_skip >> 2;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1213 Uint32 dstp = (Uint32 )info->d_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1214 int dstskip = info->d_skip >> 2;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1215 Uint32 s;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1216 Uint32 d;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1217 Uint32 s1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1218 Uint32 d1;
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1219
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1220 while(height--) {
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1221 DUFFS_LOOP_DOUBLE2({
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1222 /* One Pixel Blend */
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1223 s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1224 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1225 s1 = s & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1226 d1 = d & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1227 d1 = (d1 + ((s1 - d1) * alpha >> 8))
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1228 & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1229 s &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1230 d &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1231 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1232 *dstp = d1 \| d \| 0xff000000;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1233 ++srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1234 ++dstp;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1235 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1236 /* Two Pixels Blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1237 s = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1238 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1239 s1 = s & 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1240 d1 = d & 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1241 d1 += (s1 - d1) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1242 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1243
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1244 s = ((s & 0xff00) >> 8) \|
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1245 ((srcp[1] & 0xff00) << 8);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1246 d = ((d & 0xff00) >> 8) \|
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1247 ((dstp[1] & 0xff00) << 8);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1248 d += (s - d) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1249 d &= 0x00ff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1250
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1251 *dstp++ = d1 \| ((d << 8) & 0xff00) \| 0xff000000;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1252 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1253
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1254 s1 = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1255 d1 = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1256 s1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1257 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1258 d1 += (s1 - d1) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1259 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1260
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1261 *dstp = d1 \| ((d >> 8) & 0xff00) \| 0xff000000;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1262 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1263 ++dstp;
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1264 }, width);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1265 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1266 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1267 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1268 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1269 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1270
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1271 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1272 static void BlitRGBtoRGBPixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1273 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1274 int width = info->d_width;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1275 int height = info->d_height;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1276 Uint32 srcp = (Uint32 )info->s_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1277 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1278 Uint32 dstp = (Uint32 )info->d_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1279 int dstskip = info->d_skip >> 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1280
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1281 while(height--) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1282 DUFFS_LOOP4({
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1283 Uint32 dalpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1284 Uint32 d;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1285 Uint32 s1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1286 Uint32 d1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1287 Uint32 s = *srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1288 Uint32 alpha = s >> 24;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1289 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1290 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1291 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1292 Benchmark this! */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1293 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1294 if(alpha == SDL_ALPHA_OPAQUE) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1295 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	1296 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1297 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1298 * take out the middle component (green), and process
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1299 * the other two in parallel. One multiply less.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1300 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1301 d = *dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1302 dalpha = d & 0xff000000;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1303 s1 = s & 0xff00ff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1304 d1 = d & 0xff00ff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1305 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1306 s &= 0xff00;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1307 d &= 0xff00;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1308 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1309 *dstp = d1 \| d \| dalpha;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1310 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1311 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1312 ++srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1313 ++dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1314 }, width);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1315 srcp += srcskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1316 dstp += dstskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1317 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1318 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1319
880 9ef41050100c Date: Tue, 30 Mar 2004 21:26:47 -0600 Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	1320 #ifdef MMX_ASMBLIT
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1321 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1322 inline static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1323 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1324 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1325 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1326 Uint32 srcp = (Uint32 )info->s_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1327 int srcskip = info->s_skip >> 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1328 Uint32 dstp = (Uint32 )info->d_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1329 int dstskip = info->d_skip >> 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1330
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1331 Uint32 s;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1332 Uint32 alpha;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1333
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1334 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1335 /* make mm6 all zeros. */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1336 "pxor %%mm6, %%mm6\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1337
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1338 /* Make a mask to preserve the alpha. */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1339 "pcmpeqb %%mm7, %%mm7\n\t" /* mm7(s) = FF FF FF FF \| FF FF FF FF */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1340 "psrlq $16, %%mm7\n\t" /* mm7(s) = 00 00 FF FF \| FF FF FF FF */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1341
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1342 : );
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1343
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1344 while(height--) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1345
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1346 DUFFS_LOOP4({
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1347
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1348 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1349 "prefetch 64(%0)\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1350 "prefetch 64(%1)\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1351 : : "r" (srcp), "r" (dstp) );
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1352
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1353 s = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1354 alpha = s >> 24;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1355 /* FIXME: Here we special-case opaque alpha since the
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1356 compositioning used (>>8 instead of /255) doesn't handle
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1357 it correctly. Also special-case alpha=0 for speed?
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1358 Benchmark this! */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1359
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1360 if(alpha == SDL_ALPHA_OPAQUE) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1361 dstp = (s & 0x00ffffff) \| (dstp & 0xff000000);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1362 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1363
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1364 else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1365 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1366 /* load in the source, and dst. */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1367 "movd (%0), %%mm0\n" /* mm0(s) = 0 0 0 0 \| As Rs Gs Bs */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1368 "movd (%1), %%mm1\n" /* mm1(d) = 0 0 0 0 \| Ad Rd Gd Bd */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1369
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1370 /* Move the src alpha into mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1371
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1372 /* if supporting pshufw */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1373 /"pshufw $0x55, %%mm0, %%mm2\n" / /* mm2 = 0 As 0 As \| 0 As 0 As */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1374 /"psrlw $8, %%mm2\n" /
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1375
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1376 /* else: */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1377 "movq %%mm0, %%mm2\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1378 "psrld $24, %%mm2\n" /* mm2 = 0 0 0 0 \| 0 0 0 As */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1379 "punpcklwd %%mm2, %%mm2\n" /* mm2 = 0 0 0 0 \| 0 As 0 As */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1380 "punpckldq %%mm2, %%mm2\n" /* mm2 = 0 As 0 As \| 0 As 0 As */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1381
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1382 /* move the colors into words. */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1383 "punpcklbw %%mm6, %%mm0\n" /* mm0 = 0 As 0 Rs \| 0 Gs 0 Bs */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1384 "punpcklbw %%mm6, %%mm1\n" /* mm0 = 0 Ad 0 Rd \| 0 Gd 0 Bd */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1385
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1386 /* src - dst */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1387 "psubw %%mm1, %%mm0\n" /* mm0 = As-Ad Rs-Rd \| Gs-Gd Bs-Bd */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1388
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1389 /* A * (src-dst) */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1390 "pmullw %%mm2, %%mm0\n" /* mm0 = AsAs-d AsRs-d \| AsGs-d AsBs-d */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1391 "pand %%mm7, %%mm0\n" /* to preserve dest alpha */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1392 "psrlw $8, %%mm0\n" /* mm0 = Ac>>8 Rc>>8 \| Gc>>8 Bc>>8 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1393 "paddb %%mm1, %%mm0\n" /* mm0 = Ac+Ad Rc+Rd \| Gc+Gd Bc+Bd */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1394
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1395 "packuswb %%mm0, %%mm0\n" /* mm0 = \| Ac Rc Gc Bc */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1396
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1397 "movd %%mm0, (%1)\n" /* result in mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1398
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1399 : : "r" (srcp), "r" (dstp) );
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1400
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1401 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1402 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1403 ++dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1404 }, width);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1405 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1406 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1407 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1408
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1409 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1410 "emms\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1411 : );
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1412 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1413 #endif
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1414
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1415 /* 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	1416
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1417 /* 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	1418 #define BLEND16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1419 ((((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	1420
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1421 /* blend two 16 bit pixels at 50% */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1422 #define BLEND2x16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1423 (((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	1424 + (s & d & (~(mask \| mask << 16))))
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1425
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1426 static void Blit16to16SurfaceAlpha128(SDL_BlitInfo *info, Uint16 mask)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1427 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1428 int width = info->d_width;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1429 int height = info->d_height;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1430 Uint16 srcp = (Uint16 )info->s_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1431 int srcskip = info->s_skip >> 1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1432 Uint16 dstp = (Uint16 )info->d_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1433 int dstskip = info->d_skip >> 1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1434
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1435 while(height--) {
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1436 if(((unsigned long)srcp ^ (unsigned long)dstp) & 2) {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1437 /*
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1438 * Source and destination not aligned, pipeline it.
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1439 * This is mostly a win for big blits but no loss for
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1440 * small ones
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1441 */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1442 Uint32 prev_sw;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1443 int w = width;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1444
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1445 /* handle odd destination */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1446 if((unsigned long)dstp & 2) {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1447 Uint16 d = dstp, s = srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1448 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1449 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1450 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1451 w--;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1452 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1453 srcp++; /* srcp is now 32-bit aligned */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1454
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1455 /* bootstrap pipeline with first halfword */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1456 prev_sw = ((Uint32 *)srcp)[-1];
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1457
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1458 while(w > 1) {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1459 Uint32 sw, dw, s;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1460 sw = (Uint32 )srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1461 dw = (Uint32 )dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1462 if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1463 s = (prev_sw << 16) + (sw >> 16);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1464 else
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1465 s = (prev_sw >> 16) + (sw << 16);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1466 prev_sw = sw;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1467 (Uint32 )dstp = BLEND2x16_50(dw, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1468 dstp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1469 srcp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1470 w -= 2;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1471 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1472
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1473 /* final pixel if any */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1474 if(w) {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1475 Uint16 d = *dstp, s;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1476 if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1477 s = prev_sw;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1478 else
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1479 s = prev_sw >> 16;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1480 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1481 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1482 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1483 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1484 srcp += srcskip - 1;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1485 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1486 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1487 /* source and destination are aligned */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1488 int w = width;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1489
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1490 /* first odd pixel? */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1491 if((unsigned long)srcp & 2) {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1492 Uint16 d = dstp, s = srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1493 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1494 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1495 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1496 w--;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1497 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1498 /* srcp and dstp are now 32-bit aligned */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1499
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1500 while(w > 1) {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1501 Uint32 sw = (Uint32 )srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1502 Uint32 dw = (Uint32 )dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1503 (Uint32 )dstp = BLEND2x16_50(dw, sw, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1504 srcp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1505 dstp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1506 w -= 2;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1507 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1508
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1509 /* last odd pixel? */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1510 if(w) {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1511 Uint16 d = dstp, s = srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1512 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1513 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1514 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1515 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1516 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1517 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1518 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1519 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1520 }
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1521
880 9ef41050100c Date: Tue, 30 Mar 2004 21:26:47 -0600 Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	1522 #ifdef MMX_ASMBLIT
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1523 /* fast RGB565->RGB565 blending with surface alpha */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1524 static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1525 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1526 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1527 if(alpha == 128) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1528 Blit16to16SurfaceAlpha128(info, 0xf7de);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1529 } else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1530 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1531 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1532 Uint16 srcp = (Uint16 )info->s_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1533 int srcskip = info->s_skip >> 1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1534 Uint16 dstp = (Uint16 )info->d_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1535 int dstskip = info->d_skip >> 1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1536 Uint32 s, d;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1537 Uint8 load[8];
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1538
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1539 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1540 (Uint64 )load = alpha;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1541 alpha >>= 3; /* downscale alpha to 5 bits */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1542
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1543 movq_m2r(load, mm0); / alpha(0000000A) -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1544 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1545 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1546
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1547 /* Setup the 565 color channel masks */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	1548 (Uint64 )load = 0xF800F800F800F800ULL;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1549 movq_m2r(load, mm1); / MASKRED -> mm1 */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	1550 (Uint64 )load = 0x07E007E007E007E0ULL;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1551 movq_m2r(load, mm4); / MASKGREEN -> mm4 */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	1552 (Uint64 )load = 0x001F001F001F001FULL;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1553 movq_m2r(load, mm7); / MASKBLUE -> mm7 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1554 while(height--) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1555 DUFFS_LOOP_QUATRO2(
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1556 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1557 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1558 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1559 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1560 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1561 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1562 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1563 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1564 s = (s \| s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1565 d = (d \| d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1566 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1567 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1568 *dstp++ = d \| d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1569 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1570 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1571 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1572 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1573 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1574 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1575 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1576 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1577 s = (s \| s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1578 d = (d \| d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1579 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1580 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1581 *dstp++ = d \| d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1582 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1583 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1584 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1585 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1586 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1587 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1588 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1589 s = (s \| s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1590 d = (d \| d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1591 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1592 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1593 *dstp++ = d \| d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1594 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1595 movq_m2r((dstp), mm3);/ 4 dst pixels -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1596 movq_m2r((srcp), mm2);/ 4 src pixels -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1597
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1598 /* RED */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1599 movq_r2r(mm2, mm5); /* src -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1600 pand_r2r(mm1 , mm5); /* src & MASKRED -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1601 psrlq_i2r(11, mm5); /* mm5 >> 11 -> mm5 [000r 000r 000r 000r] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1602
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1603 movq_r2r(mm3, mm6); /* dst -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1604 pand_r2r(mm1 , mm6); /* dst & MASKRED -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1605 psrlq_i2r(11, mm6); /* mm6 >> 11 -> mm6 [000r 000r 000r 000r] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1606
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1607 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1608 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1609 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1610 psrlw_i2r(8, mm5); /* mm5 >> 8 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1611 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1612 psllq_i2r(11, mm6); /* mm6 << 11 -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1613 pand_r2r(mm1, mm6); /* mm6 & MASKRED -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1614
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1615 movq_r2r(mm4, mm5); /* MASKGREEN -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1616 por_r2r(mm7, mm5); /* MASKBLUE \| mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1617 pand_r2r(mm5, mm3); /* mm3 & mm5(!MASKRED) -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1618 por_r2r(mm6, mm3); /* save new reds in dsts */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1619
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1620 /* green */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1621 movq_r2r(mm2, mm5); /* src -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1622 pand_r2r(mm4 , mm5); /* src & MASKGREEN -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1623 psrlq_i2r(5, mm5); /* mm5 >> 5 -> mm5 [000g 000g 000g 000g] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1624
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1625 movq_r2r(mm3, mm6); /* dst -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1626 pand_r2r(mm4 , mm6); /* dst & MASKGREEN -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1627 psrlq_i2r(5, mm6); /* mm6 >> 5 -> mm6 [000g 000g 000g 000g] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1628
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1629 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1630 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1631 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1632 psrlw_i2r(8, mm5); /* mm5 >> 8 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1633 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1634 psllq_i2r(5, mm6); /* mm6 << 5 -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1635 pand_r2r(mm4, mm6); /* mm6 & MASKGREEN -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1636
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1637 movq_r2r(mm1, mm5); /* MASKRED -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1638 por_r2r(mm7, mm5); /* MASKBLUE \| mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1639 pand_r2r(mm5, mm3); /* mm3 & mm5(!MASKGREEN) -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1640 por_r2r(mm6, mm3); /* save new greens in dsts */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1641
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1642 /* blue */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1643 movq_r2r(mm2, mm5); /* src -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1644 pand_r2r(mm7 , mm5); /* src & MASKRED -> mm5[000b 000b 000b 000b] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1645
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1646 movq_r2r(mm3, mm6); /* dst -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1647 pand_r2r(mm7 , mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1648
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1649 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1650 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1651 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1652 psrlw_i2r(8, mm5); /* mm5 >> 8 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1653 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1654 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1655
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1656 movq_r2r(mm1, mm5); /* MASKRED -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1657 por_r2r(mm4, mm5); /* MASKGREEN \| mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1658 pand_r2r(mm5, mm3); /* mm3 & mm5(!MASKBLUE) -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1659 por_r2r(mm6, mm3); /* save new blues in dsts */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1660
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1661 movq_r2m(mm3, dstp);/ mm3 -> 4 dst pixels */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1662
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1663 srcp += 4;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1664 dstp += 4;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1665 }, width);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1666 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1667 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1668 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1669 emms();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1670 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1671 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1672
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1673 /* fast RGB555->RGB555 blending with surface alpha */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1674 static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1675 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1676 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1677 if(alpha == 128) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1678 Blit16to16SurfaceAlpha128(info, 0xfbde);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1679 } else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1680 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1681 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1682 Uint16 srcp = (Uint16 )info->s_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1683 int srcskip = info->s_skip >> 1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1684 Uint16 dstp = (Uint16 )info->d_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1685 int dstskip = info->d_skip >> 1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1686 Uint32 s, d;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1687 Uint8 load[8];
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1688
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1689 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1690 (Uint64 )load = alpha;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1691 alpha >>= 3; /* downscale alpha to 5 bits */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1692
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1693 movq_m2r(load, mm0); / alpha(0000000A) -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1694 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1695 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1696
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1697 /* Setup the 555 color channel masks */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	1698 (Uint64 )load = 0x7C007C007C007C00ULL;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1699 movq_m2r(load, mm1); / MASKRED -> mm1 */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	1700 (Uint64 )load = 0x03E003E003E003E0ULL;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1701 movq_m2r(load, mm4); / MASKGREEN -> mm4 */
720 f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released Sam Lantinga <slouken@libsdl.org> parents: 689 diff changeset	1702 (Uint64 )load = 0x001F001F001F001FULL;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1703 movq_m2r(load, mm7); / MASKBLUE -> mm7 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1704 while(height--) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1705 DUFFS_LOOP_QUATRO2(
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1706 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1707 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1708 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1709 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1710 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1711 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1712 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1713 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1714 s = (s \| s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1715 d = (d \| d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1716 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1717 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1718 *dstp++ = d \| d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1719 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1720 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1721 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1722 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1723 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1724 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1725 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1726 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1727 s = (s \| s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1728 d = (d \| d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1729 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1730 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1731 *dstp++ = d \| d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1732 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1733 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1734 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1735 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1736 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1737 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1738 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1739 s = (s \| s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1740 d = (d \| d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1741 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1742 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1743 *dstp++ = d \| d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1744 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1745 movq_m2r((dstp), mm3);/ 4 dst pixels -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1746 movq_m2r((srcp), mm2);/ 4 src pixels -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1747
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1748 /* RED */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1749 movq_r2r(mm2, mm5); /* src -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1750 pand_r2r(mm1 , mm5); /* src & MASKRED -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1751 psrlq_i2r(10, mm5); /* mm5 >> 10 -> mm5 [000r 000r 000r 000r] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1752
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1753 movq_r2r(mm3, mm6); /* dst -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1754 pand_r2r(mm1 , mm6); /* dst & MASKRED -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1755 psrlq_i2r(10, mm6); /* mm6 >> 10 -> mm6 [000r 000r 000r 000r] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1756
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1757 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1758 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1759 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1760 psrlw_i2r(8, mm5); /* mm5 >> 8 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1761 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1762 psllq_i2r(10, mm6); /* mm6 << 10 -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1763 pand_r2r(mm1, mm6); /* mm6 & MASKRED -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1764
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1765 movq_r2r(mm4, mm5); /* MASKGREEN -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1766 por_r2r(mm7, mm5); /* MASKBLUE \| mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1767 pand_r2r(mm5, mm3); /* mm3 & mm5(!MASKRED) -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1768 por_r2r(mm6, mm3); /* save new reds in dsts */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1769
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1770 /* green */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1771 movq_r2r(mm2, mm5); /* src -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1772 pand_r2r(mm4 , mm5); /* src & MASKGREEN -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1773 psrlq_i2r(5, mm5); /* mm5 >> 5 -> mm5 [000g 000g 000g 000g] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1774
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1775 movq_r2r(mm3, mm6); /* dst -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1776 pand_r2r(mm4 , mm6); /* dst & MASKGREEN -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1777 psrlq_i2r(5, mm6); /* mm6 >> 5 -> mm6 [000g 000g 000g 000g] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1778
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1779 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1780 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1781 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1782 psrlw_i2r(8, mm5); /* mm5 >> 8 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1783 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1784 psllq_i2r(5, mm6); /* mm6 << 5 -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1785 pand_r2r(mm4, mm6); /* mm6 & MASKGREEN -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1786
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1787 movq_r2r(mm1, mm5); /* MASKRED -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1788 por_r2r(mm7, mm5); /* MASKBLUE \| mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1789 pand_r2r(mm5, mm3); /* mm3 & mm5(!MASKGREEN) -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1790 por_r2r(mm6, mm3); /* save new greens in dsts */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1791
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1792 /* blue */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1793 movq_r2r(mm2, mm5); /* src -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1794 pand_r2r(mm7 , mm5); /* src & MASKRED -> mm5[000b 000b 000b 000b] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1795
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1796 movq_r2r(mm3, mm6); /* dst -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1797 pand_r2r(mm7 , mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1798
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1799 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1800 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1801 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1802 psrlw_i2r(8, mm5); /* mm5 >> 8 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1803 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1804 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1805
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1806 movq_r2r(mm1, mm5); /* MASKRED -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1807 por_r2r(mm4, mm5); /* MASKGREEN \| mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1808 pand_r2r(mm5, mm3); /* mm3 & mm5(!MASKBLUE) -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1809 por_r2r(mm6, mm3); /* save new blues in dsts */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1810
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1811 movq_r2m(mm3, dstp);/ mm3 -> 4 dst pixels */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1812
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1813 srcp += 4;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1814 dstp += 4;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1815 }, width);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1816 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1817 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1818 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1819 emms();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1820 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1821 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1822 #endif
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1823
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1824 /* fast RGB565->RGB565 blending with surface alpha */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1825 static void Blit565to565SurfaceAlpha(SDL_BlitInfo *info)
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1826 {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1827 unsigned alpha = info->src->alpha;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1828 if(alpha == 128) {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1829 Blit16to16SurfaceAlpha128(info, 0xf7de);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1830 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1831 int width = info->d_width;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1832 int height = info->d_height;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1833 Uint16 srcp = (Uint16 )info->s_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1834 int srcskip = info->s_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1835 Uint16 dstp = (Uint16 )info->d_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1836 int dstskip = info->d_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1837 alpha >>= 3; /* downscale alpha to 5 bits */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1838
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1839 while(height--) {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1840 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1841 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1842 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1843 /*
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1844 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1845 * 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	1846 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1847 */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1848 s = (s \| s << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1849 d = (d \| d << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1850 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1851 d &= 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1852 *dstp++ = d \| d >> 16;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1853 }, width);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1854 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1855 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1856 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1857 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1858 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1859
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1860 /* fast RGB555->RGB555 blending with surface alpha */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1861 static void Blit555to555SurfaceAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1862 {
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1863 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1864 if(alpha == 128) {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1865 Blit16to16SurfaceAlpha128(info, 0xfbde);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1866 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1867 int width = info->d_width;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1868 int height = info->d_height;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1869 Uint16 srcp = (Uint16 )info->s_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1870 int srcskip = info->s_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1871 Uint16 dstp = (Uint16 )info->d_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1872 int dstskip = info->d_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1873 alpha >>= 3; /* downscale alpha to 5 bits */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1874
1 cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1875 while(height--) {
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1876 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1877 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1878 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1879 /*
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1880 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1881 * 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	1882 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1883 */
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1884 s = (s \| s << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1885 d = (d \| d << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1886 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1887 d &= 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1888 *dstp++ = d \| d >> 16;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1889 }, width);
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1890 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1891 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release Sam Lantinga <slouken@lokigames.com> parents: 0 diff changeset	1892 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1893 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1894 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1895
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1896 /* fast ARGB8888->RGB565 blending with pixel alpha */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1897 static void BlitARGBto565PixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1898 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1899 int width = info->d_width;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1900 int height = info->d_height;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1901 Uint32 srcp = (Uint32 )info->s_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1902 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1903 Uint16 dstp = (Uint16 )info->d_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1904 int dstskip = info->d_skip >> 1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1905
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1906 while(height--) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1907 DUFFS_LOOP4({
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1908 Uint32 s = *srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1909 unsigned alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1910 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1911 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1912 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1913 Benchmark this! */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1914 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1915 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1916 *dstp = (s >> 8 & 0xf800) + (s >> 5 & 0x7e0)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1917 + (s >> 3 & 0x1f);
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1918 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1919 Uint32 d = *dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1920 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1921 * convert source and destination to G0RAB65565
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1922 * and blend all components at the same time
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1923 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1924 s = ((s & 0xfc00) << 11) + (s >> 8 & 0xf800)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1925 + (s >> 3 & 0x1f);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1926 d = (d \| d << 16) & 0x07e0f81f;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1927 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1928 d &= 0x07e0f81f;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1929 *dstp = d \| d >> 16;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1930 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1931 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1932 srcp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1933 dstp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1934 }, width);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1935 srcp += srcskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1936 dstp += dstskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1937 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1938 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1939
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1940 /* fast ARGB8888->RGB555 blending with pixel alpha */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1941 static void BlitARGBto555PixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1942 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1943 int width = info->d_width;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1944 int height = info->d_height;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1945 Uint32 srcp = (Uint32 )info->s_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1946 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1947 Uint16 dstp = (Uint16 )info->d_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1948 int dstskip = info->d_skip >> 1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1949
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1950 while(height--) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1951 DUFFS_LOOP4({
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1952 unsigned alpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1953 Uint32 s = *srcp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1954 alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1955 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1956 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1957 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1958 Benchmark this! */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1959 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1960 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1961 *dstp = (s >> 9 & 0x7c00) + (s >> 6 & 0x3e0)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1962 + (s >> 3 & 0x1f);
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1963 } else {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1964 Uint32 d = *dstp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1965 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1966 * convert source and destination to G0RAB65565
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1967 * and blend all components at the same time
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1968 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1969 s = ((s & 0xf800) << 10) + (s >> 9 & 0x7c00)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1970 + (s >> 3 & 0x1f);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1971 d = (d \| d << 16) & 0x03e07c1f;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1972 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1973 d &= 0x03e07c1f;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1974 *dstp = d \| d >> 16;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	1975 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1976 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1977 srcp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1978 dstp++;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1979 }, width);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1980 srcp += srcskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1981 dstp += dstskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1982 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1983 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1984
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1985 /* General (slow) N->N blending with per-surface alpha */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1986 static void BlitNtoNSurfaceAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1987 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1988 int width = info->d_width;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1989 int height = info->d_height;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1990 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1991 int srcskip = info->s_skip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1992 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1993 int dstskip = info->d_skip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1994 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1995 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1996 int srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1997 int dstbpp = dstfmt->BytesPerPixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1998 unsigned sA = srcfmt->alpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1999 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2000
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2001 if(sA) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2002 while ( height-- ) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2003 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2004 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2005 Uint32 pixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2006 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2007 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2008 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2009 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2010 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2011 unsigned dB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2012 DISEMBLE_RGB(src, srcbpp, srcfmt, pixel, sR, sG, sB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2013 DISEMBLE_RGB(dst, dstbpp, dstfmt, pixel, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2014 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2015 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2016 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2017 dst += dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2018 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2019 width);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2020 src += srcskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2021 dst += dstskip;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2022 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2023 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2024 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2025
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2026 /* General (slow) colorkeyed N->N blending with per-surface alpha */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2027 static void BlitNtoNSurfaceAlphaKey(SDL_BlitInfo *info)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2028 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2029 int width = info->d_width;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2030 int height = info->d_height;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2031 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2032 int srcskip = info->s_skip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2033 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2034 int dstskip = info->d_skip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2035 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2036 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2037 Uint32 ckey = srcfmt->colorkey;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2038 int srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2039 int dstbpp = dstfmt->BytesPerPixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2040 unsigned sA = srcfmt->alpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2041 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2042
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2043 while ( height-- ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2044 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2045 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2046 Uint32 pixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2047 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2048 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2049 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2050 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2051 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2052 unsigned dB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2053 RETRIEVE_RGB_PIXEL(src, srcbpp, pixel);
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2054 if(sA && pixel != ckey) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2055 RGB_FROM_PIXEL(pixel, srcfmt, sR, sG, sB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2056 DISEMBLE_RGB(dst, dstbpp, dstfmt, pixel, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2057 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2058 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2059 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2060 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2061 dst += dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2062 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2063 width);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2064 src += srcskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2065 dst += dstskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2066 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2067 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2068
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2069 /* General (slow) N->N blending with pixel alpha */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2070 static void BlitNtoNPixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2071 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2072 int width = info->d_width;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2073 int height = info->d_height;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2074 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2075 int srcskip = info->s_skip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2076 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2077 int dstskip = info->d_skip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2078 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2079 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2080
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2081 int srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2082 int dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2083
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2084 /* Set up some basic variables */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2085 srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2086 dstbpp = dstfmt->BytesPerPixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2087
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2088 /* FIXME: for 8bpp source alpha, this doesn't get opaque values
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2089 quite right. for <8bpp source alpha, it gets them very wrong
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2090 (check all macros!)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2091 It is unclear whether there is a good general solution that doesn't
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2092 need a branch (or a divide). */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2093 while ( height-- ) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2094 DUFFS_LOOP4(
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2095 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2096 Uint32 pixel;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2097 unsigned sR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2098 unsigned sG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2099 unsigned sB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2100 unsigned dR;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2101 unsigned dG;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2102 unsigned dB;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2103 unsigned sA;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2104 unsigned dA;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2105 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	2106 if(sA) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2107 DISEMBLE_RGBA(dst, dstbpp, dstfmt, pixel, dR, dG, dB, dA);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2108 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	2109 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	2110 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2111 src += srcbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2112 dst += dstbpp;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2113 },
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2114 width);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2115 src += srcskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2116 dst += dstskip;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2117 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2118 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2119
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2120
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2121 SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2122 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2123 SDL_PixelFormat *sf = surface->format;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2124 SDL_PixelFormat *df = surface->map->dst->format;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2125
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2126 if(sf->Amask == 0) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2127 if((surface->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2128 if(df->BytesPerPixel == 1)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2129 return BlitNto1SurfaceAlphaKey;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2130 else
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2131 #ifdef USE_ALTIVEC_BLITTERS
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2132 if (sf->BytesPerPixel == 4 && df->BytesPerPixel == 4 && SDL_HasAltiVec())
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2133 return Blit32to32SurfaceAlphaKeyAltivec;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2134 else
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2135 #endif
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2136 return BlitNtoNSurfaceAlphaKey;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2137 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2138 /* Per-surface alpha blits */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2139 switch(df->BytesPerPixel) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2140 case 1:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2141 return BlitNto1SurfaceAlpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2142
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2143 case 2:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2144 if(surface->map->identity) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2145 if(df->Gmask == 0x7e0)
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2146 {
880 9ef41050100c Date: Tue, 30 Mar 2004 21:26:47 -0600 Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	2147 #ifdef MMX_ASMBLIT
739 22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h Sam Lantinga <slouken@libsdl.org> parents: 720 diff changeset	2148 if(SDL_HasMMX())
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2149 return Blit565to565SurfaceAlphaMMX;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2150 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2151 #endif
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2152 return Blit565to565SurfaceAlpha;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2153 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2154 else if(df->Gmask == 0x3e0)
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2155 {
880 9ef41050100c Date: Tue, 30 Mar 2004 21:26:47 -0600 Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	2156 #ifdef MMX_ASMBLIT
739 22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h Sam Lantinga <slouken@libsdl.org> parents: 720 diff changeset	2157 if(SDL_HasMMX())
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2158 return Blit555to555SurfaceAlphaMMX;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2159 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2160 #endif
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2161 return Blit555to555SurfaceAlpha;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2162 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2163 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2164 return BlitNtoNSurfaceAlpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2165
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2166 case 4:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2167 if(sf->Rmask == df->Rmask
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2168 && sf->Gmask == df->Gmask
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2169 && sf->Bmask == df->Bmask
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2170 && (sf->Rmask \| sf->Gmask \| sf->Bmask) == 0xffffff
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2171 && sf->BytesPerPixel == 4)
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2172 {
880 9ef41050100c Date: Tue, 30 Mar 2004 21:26:47 -0600 Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	2173 #ifdef MMX_ASMBLIT
739 22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h Sam Lantinga <slouken@libsdl.org> parents: 720 diff changeset	2174 if(SDL_HasMMX())
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2175 return BlitRGBtoRGBSurfaceAlphaMMX;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2176 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2177 #endif
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2178 #ifdef USE_ALTIVEC_BLITTERS
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2179 if(SDL_HasAltiVec())
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2180 return BlitRGBtoRGBSurfaceAlphaAltivec;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2181 else
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2182 #endif
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2183 return BlitRGBtoRGBSurfaceAlpha;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2184 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2185 else
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2186 #ifdef USE_ALTIVEC_BLITTERS
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2187 if((sf->BytesPerPixel == 4) && SDL_HasAltiVec())
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2188 return Blit32to32SurfaceAlphaAltivec;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2189 else
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2190 #endif
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2191 return BlitNtoNSurfaceAlpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2192
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2193 case 3:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2194 default:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2195 return BlitNtoNSurfaceAlpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2196 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2197 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2198 } else {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2199 /* Per-pixel alpha blits */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2200 switch(df->BytesPerPixel) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2201 case 1:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2202 return BlitNto1PixelAlpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2203
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2204 case 2:
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2205 #ifdef USE_ALTIVEC_BLITTERS
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2206 if(sf->BytesPerPixel == 4 &&
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2207 df->Gmask == 0x7e0 &&
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2208 df->Bmask == 0x1f)
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2209 return Blit32to565PixelAlphaAltivec;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2210 else
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2211 #endif
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2212 if(sf->BytesPerPixel == 4 && sf->Amask == 0xff000000
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2213 && sf->Gmask == 0xff00
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2214 && ((sf->Rmask == 0xff && df->Rmask == 0x1f)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2215 \|\| (sf->Bmask == 0xff && df->Bmask == 0x1f))) {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2216 if(df->Gmask == 0x7e0)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2217 return BlitARGBto565PixelAlpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2218 else if(df->Gmask == 0x3e0)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2219 return BlitARGBto555PixelAlpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2220 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2221 return BlitNtoNPixelAlpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2222
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2223 case 4:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2224 if(sf->Amask == 0xff000000
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2225 && sf->Rmask == df->Rmask
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2226 && sf->Gmask == df->Gmask
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2227 && sf->Bmask == df->Bmask
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2228 && sf->BytesPerPixel == 4)
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2229 {
880 9ef41050100c Date: Tue, 30 Mar 2004 21:26:47 -0600 Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	2230 #ifdef MMX_ASMBLIT
739 22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h Sam Lantinga <slouken@libsdl.org> parents: 720 diff changeset	2231 if(SDL_Has3DNow())
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2232 return BlitRGBtoRGBPixelAlphaMMX3DNOW;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2233 else
739 22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h Sam Lantinga <slouken@libsdl.org> parents: 720 diff changeset	2234 if(SDL_HasMMX())
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2235 return BlitRGBtoRGBPixelAlphaMMX;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2236 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2237 #endif
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2238 #ifdef USE_ALTIVEC_BLITTERS
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2239 if(SDL_HasAltiVec())
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2240 return BlitRGBtoRGBPixelAlphaAltivec;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2241 else
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2242 #endif
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2243 return BlitRGBtoRGBPixelAlpha;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	2244 }
1047 ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2245 #ifdef USE_ALTIVEC_BLITTERS
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2246 if (sf->Amask && sf->BytesPerPixel == 4 && SDL_HasAltiVec())
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2247 return Blit32to32PixelAlphaAltivec;
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2248 else
ffaaf7ecf685 Altivec-optimized blitters! Ryan C. Gordon <icculus@icculus.org> parents: 880 diff changeset	2249 #endif
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2250 return BlitNtoNPixelAlpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2251
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2252 case 3:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2253 default:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2254 return BlitNtoNPixelAlpha;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2255 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2256 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2257 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2258

Mercurial > sdl-ios-xcode

annotate src/video/SDL_blit_A.c @ 1102:f0919504adfd