sdl-ios-xcode: src/video/SDL

annotate src/video/SDL_blit.c @ 2824:4dba7aa7ea77

Added slow but complete blit fallback Don't try to RLE encode surfaces that have alpha channel and alpha modulation Don't turn on blending when converting an RGB surface to RGBA format Do turn on blending when converting colorkey to alpha channel

author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 02 Dec 2008 17:14:04 +0000
parents	2ed5ff5373d8
children	ff8db79a3cc9

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1196 diff changeset	3 Copyright (C) 1997-2006 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1196 diff changeset	6 modify it under the terms of the GNU Lesser General Public
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1196 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1196 diff changeset	13 Lesser General Public License for more details.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1196 diff changeset	15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1196 diff changeset	16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1196 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19 Sam Lantinga
252 e8157fcb3114 Updated the source with the correct e-mail address Sam Lantinga <slouken@libsdl.org> parents: 0 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	22 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 #include "SDL_video.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25 #include "SDL_sysvideo.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 #include "SDL_blit.h"
2263 900c35d8e8fd More work in progress, still doesn't compile... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	27 #include "SDL_blit_auto.h"
2254 79e00f5561f4 Oops, didn't want to rename those files... Sam Lantinga <slouken@libsdl.org> parents: 2253 diff changeset	28 #include "SDL_blit_copy.h"
2824 4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	29 #include "SDL_blit_slow.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 #include "SDL_RLEaccel_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 #include "SDL_pixels_c.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33 /* The general purpose software blit routine */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	34 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	35 SDL_SoftBlit(SDL_Surface * src, SDL_Rect * srcrect,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	36 SDL_Surface * dst, SDL_Rect * dstrect)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	38 int okay;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	39 int src_locked;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	40 int dst_locked;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	42 /* Everything is okay at the beginning... */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	43 okay = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	45 /* Lock the destination if it's in hardware */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	46 dst_locked = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	47 if (SDL_MUSTLOCK(dst)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	48 if (SDL_LockSurface(dst) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	49 okay = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	50 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	51 dst_locked = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	52 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	53 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	54 /* Lock the source if it's in hardware */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	55 src_locked = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	56 if (SDL_MUSTLOCK(src)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	57 if (SDL_LockSurface(src) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	58 okay = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	59 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	60 src_locked = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	61 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	62 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	63
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	64 /* Set up source and destination buffer pointers, and BLIT! */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	65 if (okay && srcrect->w && srcrect->h) {
2263 900c35d8e8fd More work in progress, still doesn't compile... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	66 SDL_BlitFunc RunBlit;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	67 SDL_BlitInfo *info = &src->map->info;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	68
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	69 /* Set up the blit information */
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	70 info->src = (Uint8 *) src->pixels +
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	71 (Uint16) srcrect->y * src->pitch +
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	72 (Uint16) srcrect->x * info->src_fmt->BytesPerPixel;
2263 900c35d8e8fd More work in progress, still doesn't compile... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	73 info->src_w = srcrect->w;
900c35d8e8fd More work in progress, still doesn't compile... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	74 info->src_h = srcrect->h;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	75 info->src_skip =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	76 info->src_pitch - info->src_w * info->src_fmt->BytesPerPixel;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	77 info->dst =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	78 (Uint8 ) dst->pixels + (Uint16) dstrect->y dst->pitch +
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	79 (Uint16) dstrect->x * info->dst_fmt->BytesPerPixel;
2263 900c35d8e8fd More work in progress, still doesn't compile... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	80 info->dst_w = dstrect->w;
900c35d8e8fd More work in progress, still doesn't compile... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	81 info->dst_h = dstrect->h;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	82 info->dst_skip =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	83 info->dst_pitch - info->dst_w * info->dst_fmt->BytesPerPixel;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	84 RunBlit = (SDL_BlitFunc) src->map->data;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	85
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	86 /* Run the actual software blit */
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	87 RunBlit(info);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	88 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	89
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	90 /* We need to unlock the surfaces if they're locked */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	91 if (dst_locked) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	92 SDL_UnlockSurface(dst);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	93 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	94 if (src_locked) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	95 SDL_UnlockSurface(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	96 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	97 /* Blit is done! */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	98 return (okay ? 0 : -1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	99 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	100
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	101 #ifdef __MACOSX__
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	102 #include <sys/sysctl.h>
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	103
2249 5a58b57b6724 Added SSE and MMX optimization for SDL_FillRect() Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	104 static SDL_bool
5a58b57b6724 Added SSE and MMX optimization for SDL_FillRect() Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	105 SDL_UseAltivecPrefetch()
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	106 {
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	107 const char key[] = "hw.l3cachesize";
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	108 u_int64_t result = 0;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	109 size_t typeSize = sizeof(result);
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	110
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	111 if (sysctlbyname(key, &result, &typeSize, NULL, 0) == 0 && result > 0) {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	112 return SDL_TRUE;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	113 } else {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	114 return SDL_FALSE;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	115 }
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	116 }
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	117 #else
2249 5a58b57b6724 Added SSE and MMX optimization for SDL_FillRect() Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	118 static SDL_bool
5a58b57b6724 Added SSE and MMX optimization for SDL_FillRect() Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	119 SDL_UseAltivecPrefetch()
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	120 {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	121 /* Just guess G4 */
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	122 return SDL_TRUE;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	123 }
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	124 #endif /* __MACOSX__ */
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	125
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	126 static SDL_BlitFunc
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	127 SDL_ChooseBlitFunc(Uint32 src_format, Uint32 dst_format, int flags,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	128 SDL_BlitFuncEntry * entries)
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	129 {
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	130 int i, flagcheck;
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	131 static Uint32 features = 0xffffffff;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	132
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	133 /* Get the available CPU features */
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	134 if (features == 0xffffffff) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	135 const char *override = SDL_getenv("SDL_BLIT_CPU_FEATURES");
2250 e1d228456537 Fixed a few compiler warnings. Sam Lantinga <slouken@libsdl.org> parents: 2249 diff changeset	136
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	137 features = SDL_CPU_ANY;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	138
2250 e1d228456537 Fixed a few compiler warnings. Sam Lantinga <slouken@libsdl.org> parents: 2249 diff changeset	139 /* Allow an override for testing .. */
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	140 if (override) {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	141 SDL_sscanf(override, "%u", &features);
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	142 } else {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	143 if (SDL_HasMMX()) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	144 features \|= SDL_CPU_MMX;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	145 }
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	146 if (SDL_Has3DNow()) {
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	147 features \|= SDL_CPU_3DNOW;
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	148 }
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	149 if (SDL_HasSSE()) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	150 features \|= SDL_CPU_SSE;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	151 }
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	152 if (SDL_HasSSE2()) {
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	153 features \|= SDL_CPU_SSE2;
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	154 }
2250 e1d228456537 Fixed a few compiler warnings. Sam Lantinga <slouken@libsdl.org> parents: 2249 diff changeset	155 if (SDL_HasAltiVec()) {
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	156 if (SDL_UseAltivecPrefetch()) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	157 features \|= SDL_CPU_ALTIVEC_PREFETCH;
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	158 } else {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	159 features \|= SDL_CPU_ALTIVEC_NOPREFETCH;
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	160 }
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	161 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	162 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	163 }
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	164
2263 900c35d8e8fd More work in progress, still doesn't compile... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	165 for (i = 0; entries[i].func; ++i) {
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	166 /* Check for matching pixel formats */
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	167 if (src_format != entries[i].src_format) {
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	168 continue;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	169 }
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	170 if (dst_format != entries[i].dst_format) {
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	171 continue;
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	172 }
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	173
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	174 /* Check modulation flags */
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	175 flagcheck =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	176 (flags & (SDL_COPY_MODULATE_COLOR \| SDL_COPY_MODULATE_COLOR));
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	177 if ((flagcheck & entries[i].flags) != flagcheck) {
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	178 continue;
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	179 }
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	180
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	181 /* Check blend flags */
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	182 flagcheck =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	183 (flags &
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	184 (SDL_COPY_MASK \| SDL_COPY_BLEND \| SDL_COPY_ADD \| SDL_COPY_MOD));
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	185 if ((flagcheck & entries[i].flags) != flagcheck) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	186 continue;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	187 }
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	188
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	189 /* Check colorkey flag */
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	190 flagcheck = (flags & SDL_COPY_COLORKEY);
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	191 if ((flagcheck & entries[i].flags) != flagcheck) {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	192 continue;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	193 }
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	194
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	195 /* Check scaling flags */
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	196 flagcheck = (flags & SDL_COPY_NEAREST);
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	197 if ((flagcheck & entries[i].flags) != flagcheck) {
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	198 continue;
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	199 }
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	200
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	201 /* Check CPU features */
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	202 flagcheck = entries[i].cpu;
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	203 if ((flagcheck & features) != flagcheck) {
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	204 continue;
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	205 }
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	206
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	207 /* We found the best one! */
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	208 return entries[i].func;
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	209 }
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	210 return NULL;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	211 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	212
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	213 /* Figure out which of many blit routines to set up on a surface */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	214 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	215 SDL_CalculateBlit(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	216 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	217 SDL_BlitFunc blit = NULL;
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	218 SDL_BlitMap *map = surface->map;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	219 SDL_Surface *dst = map->dst;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	220
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	221 /* Clean everything out to start */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	222 if ((surface->flags & SDL_RLEACCEL) == SDL_RLEACCEL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	223 SDL_UnRLESurface(surface, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	224 }
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	225 map->blit = SDL_SoftBlit;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	226 map->info.src_fmt = surface->format;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	227 map->info.src_pitch = surface->pitch;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	228 map->info.dst_fmt = dst->format;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	229 map->info.dst_pitch = dst->pitch;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	230
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	231 /* See if we can do RLE acceleration */
2805 2ed5ff5373d8 Preserve the desire for RLE acceleration Sam Lantinga <slouken@libsdl.org> parents: 2801 diff changeset	232 if (map->info.flags & SDL_COPY_RLE_DESIRED) {
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	233 if (SDL_RLESurface(surface) == 0) {
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	234 return 0;
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	235 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	236 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	237
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	238 /* Choose a standard blit function */
2801 5eb95b8adc1a Fixed copy blit detection Sam Lantinga <slouken@libsdl.org> parents: 2329 diff changeset	239 if (map->identity && !(map->info.flags & ~SDL_COPY_RLE_DESIRED)) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	240 /* Handle overlapping blits on the same surface */
2263 900c35d8e8fd More work in progress, still doesn't compile... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	241 if (surface == dst) {
2257 340942cfda48 Moved the colorkey and per-surface alpha into the blit info, Sam Lantinga <slouken@libsdl.org> parents: 2255 diff changeset	242 blit = SDL_BlitCopyOverlap;
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	243 } else {
2257 340942cfda48 Moved the colorkey and per-surface alpha into the blit info, Sam Lantinga <slouken@libsdl.org> parents: 2255 diff changeset	244 blit = SDL_BlitCopy;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	245 }
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	246 } else if (surface->format->BitsPerPixel < 8) {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	247 blit = SDL_CalculateBlit0(surface);
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	248 } else if (surface->format->BytesPerPixel == 1) {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	249 blit = SDL_CalculateBlit1(surface);
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	250 } else if (map->info.flags & SDL_COPY_BLEND) {
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	251 blit = SDL_CalculateBlitA(surface);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	252 } else {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	253 blit = SDL_CalculateBlitN(surface);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	254 }
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	255 if (blit == NULL) {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	256 Uint32 src_format =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	257 SDL_MasksToPixelFormatEnum(surface->format->BitsPerPixel,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	258 surface->format->Rmask,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	259 surface->format->Gmask,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	260 surface->format->Bmask,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	261 surface->format->Amask);
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	262 Uint32 dst_format =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	263 SDL_MasksToPixelFormatEnum(dst->format->BitsPerPixel,
2329 c1a390f6a819 ran make indent Bob Pendleton <bob@pendleton.com> parents: 2328 diff changeset	264 dst->format->Rmask,
2328 91e601d9df8b re: bug#563. checking in some commented out trace code and a fix so that the in testalpha.c the background only flashes when alpha == 255. The problem that is being Bob Pendleton <bob@pendleton.com> parents: 2267 diff changeset	265 dst->format->Gmask,
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	266 dst->format->Bmask,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	267 dst->format->Amask);
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	268
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	269 blit =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	270 SDL_ChooseBlitFunc(src_format, dst_format, map->info.flags,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	271 SDL_GeneratedBlitFuncTable);
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	272 }
2824 4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	273 #ifndef TEST_SLOW_BLIT
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	274 if (blit == NULL)
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	275 #endif
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	276 {
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	277 if (surface->format->BytesPerPixel > 1
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	278 && dst->format->BytesPerPixel > 1) {
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	279 blit = SDL_Blit_Slow;
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	280 }
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	281 }
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	282 map->data = blit;
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	283
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	284 /* Make sure we have a blit function */
2257 340942cfda48 Moved the colorkey and per-surface alpha into the blit info, Sam Lantinga <slouken@libsdl.org> parents: 2255 diff changeset	285 if (blit == NULL) {
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	286 SDL_InvalidateMap(map);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	287 SDL_SetError("Blit combination not supported");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	288 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	289 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	290
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	291 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	292 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	293
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	294 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_blit.c @ 2824:4dba7aa7ea77