sdl-ios-xcode: src/video/SDL

annotate src/video/SDL_blit.c @ 5275:7aba0406c273

Frank Zago to sdl The following patch fixes some of the bitrot for the Nintendo DS port. The support is still basic at the moment, but it allows to run the "general" test under the current head of tree (parent: 5269:11bd1585efb5 tip). Most of the patch is mine, but I integrated a couple changes that John Magnotti posted on Feb 1st.

author	Sam Lantinga <slouken@libsdl.org>
date	Sat, 12 Feb 2011 11:36:56 -0800
parents	b530ef003506
children

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
5267 b530ef003506 Happy 2011! :) Sam Lantinga <slouken@libsdl.org> parents: 5264 diff changeset	3 Copyright (C) 1997-2011 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 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;
2850 43691ef70176 Whoops, fixed pitch bug after resizing a surface Sam Lantinga <slouken@libsdl.org> parents: 2837 diff changeset	75 info->src_pitch = src->pitch;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	76 info->src_skip =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	77 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	78 info->dst =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	79 (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	80 (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	81 info->dst_w = dstrect->w;
900c35d8e8fd More work in progress, still doesn't compile... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	82 info->dst_h = dstrect->h;
2850 43691ef70176 Whoops, fixed pitch bug after resizing a surface Sam Lantinga <slouken@libsdl.org> parents: 2837 diff changeset	83 info->dst_pitch = dst->pitch;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	84 info->dst_skip =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	85 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	86 RunBlit = (SDL_BlitFunc) src->map->data;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	87
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 /* 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	89 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	90 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	91
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	92 /* 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	93 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	94 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	95 }
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 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	97 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	98 }
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	99 /* 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	100 return (okay ? 0 : -1);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	101 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	102
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	103
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	104 static SDL_BlitFunc
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	105 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	106 SDL_BlitFuncEntry * entries)
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	107 {
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	108 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	109 static Uint32 features = 0xffffffff;
689 5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200 Sam Lantinga <slouken@libsdl.org> parents: 526 diff changeset	110
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	111 /* 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	112 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	113 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	114
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	115 features = SDL_CPU_ANY;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	116
2250 e1d228456537 Fixed a few compiler warnings. Sam Lantinga <slouken@libsdl.org> parents: 2249 diff changeset	117 /* 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	118 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	119 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	120 } else {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	121 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	122 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	123 }
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	124 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	125 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	126 }
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	127 if (SDL_HasSSE2()) {
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	128 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	129 }
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	130 }
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	131 }
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	132
2263 900c35d8e8fd More work in progress, still doesn't compile... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	133 for (i = 0; entries[i].func; ++i) {
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	134 /* 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	135 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	136 continue;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	137 }
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	138 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	139 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	140 }
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	141
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	142 /* Check modulation flags */
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	143 flagcheck =
2837 ff8db79a3cc9 Fixed bug picking blitters Sam Lantinga <slouken@libsdl.org> parents: 2824 diff changeset	144 (flags & (SDL_COPY_MODULATE_COLOR \| SDL_COPY_MODULATE_ALPHA));
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	145 if ((flagcheck & entries[i].flags) != flagcheck) {
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	146 continue;
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	147 }
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	148
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	149 /* Check blend flags */
5187 d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME Sam Lantinga <slouken@libsdl.org> parents: 5143 diff changeset	150 flagcheck =
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME Sam Lantinga <slouken@libsdl.org> parents: 5143 diff changeset	151 (flags &
d976b67150c5 Restored SDL_BLENDMODE_MOD for MAME Sam Lantinga <slouken@libsdl.org> parents: 5143 diff changeset	152 (SDL_COPY_BLEND \| SDL_COPY_ADD \| SDL_COPY_MOD));
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	153 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	154 continue;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	155 }
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	156
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	157 /* Check colorkey flag */
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	158 flagcheck = (flags & SDL_COPY_COLORKEY);
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	159 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	160 continue;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	161 }
2265 265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	162
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	163 /* Check scaling flags */
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	164 flagcheck = (flags & SDL_COPY_NEAREST);
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	165 if ((flagcheck & entries[i].flags) != flagcheck) {
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	166 continue;
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	167 }
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	168
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	169 /* Check CPU features */
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	170 flagcheck = entries[i].cpu;
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	171 if ((flagcheck & features) != flagcheck) {
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	172 continue;
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
265bb136af92 More work in progress... Sam Lantinga <slouken@libsdl.org> parents: 2263 diff changeset	175 /* 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	176 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	177 }
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	178 return NULL;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	179 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	180
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	181 /* 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	182 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	183 SDL_CalculateBlit(SDL_Surface * surface)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	184 {
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	185 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	186 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	187 SDL_Surface *dst = map->dst;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	188
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	189 /* 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	190 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	191 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	192 }
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	193 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	194 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	195 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	196 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	197 map->info.dst_pitch = dst->pitch;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	198
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	199 /* See if we can do RLE acceleration */
2805 2ed5ff5373d8 Preserve the desire for RLE acceleration Sam Lantinga <slouken@libsdl.org> parents: 2801 diff changeset	200 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	201 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	202 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	203 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	204 }
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	205
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	206 /* Choose a standard blit function */
2801 5eb95b8adc1a Fixed copy blit detection Sam Lantinga <slouken@libsdl.org> parents: 2329 diff changeset	207 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	208 /* 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	209 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	210 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	211 } else {
2257 340942cfda48 Moved the colorkey and per-surface alpha into the blit info, Sam Lantinga <slouken@libsdl.org> parents: 2255 diff changeset	212 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	213 }
2266 e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API Sam Lantinga <slouken@libsdl.org> parents: 2265 diff changeset	214 } 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	215 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	216 } 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	217 blit = SDL_CalculateBlit1(surface);
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	218 } 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	219 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	220 } else {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	221 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	222 }
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	223 if (blit == NULL) {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	224 Uint32 src_format =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	225 SDL_MasksToPixelFormatEnum(surface->format->BitsPerPixel,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	226 surface->format->Rmask,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	227 surface->format->Gmask,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	228 surface->format->Bmask,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	229 surface->format->Amask);
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	230 Uint32 dst_format =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	231 SDL_MasksToPixelFormatEnum(dst->format->BitsPerPixel,
2329 c1a390f6a819 ran make indent Bob Pendleton <bob@pendleton.com> parents: 2328 diff changeset	232 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	233 dst->format->Gmask,
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	234 dst->format->Bmask,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	235 dst->format->Amask);
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	236
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	237 blit =
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	238 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	239 SDL_GeneratedBlitFuncTable);
2262 bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2260 diff changeset	240 }
2824 4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	241 #ifndef TEST_SLOW_BLIT
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	242 if (blit == NULL)
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	243 #endif
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	244 {
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	245 if (surface->format->BytesPerPixel > 1
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	246 && dst->format->BytesPerPixel > 1) {
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	247 blit = SDL_Blit_Slow;
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	248 }
4dba7aa7ea77 Added slow but complete blit fallback Sam Lantinga <slouken@libsdl.org> parents: 2805 diff changeset	249 }
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2266 diff changeset	250 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	251
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 /* 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	253 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	254 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	255 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	256 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	257 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	258
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	259 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	260 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	261
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	262 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_blit.c @ 5275:7aba0406c273