sdl-ios-xcode: src/video/SDL_blit

annotate src/video/SDL_blit_copy.c @ 3466:a288892cd24c

SDL_RenderReadPixels() needs to flush asynchronous operations before it reads. The semantics are that it reads the back buffer, and those pixels may not be available once SDL_RenderPresent() has happened.

author	Sam Lantinga <slouken@libsdl.org>
date	Sat, 21 Nov 2009 05:05:19 +0000
parents	99210400e8b9
children	72024425b437

rev	line source
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 SDL - Simple DirectMedia Layer
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2826 diff changeset	3 Copyright (C) 1997-2009 Sam Lantinga
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 This library is free software; you can redistribute it and/or
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6 modify it under the terms of the GNU Lesser General Public
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 License as published by the Free Software Foundation; either
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 version 2.1 of the License, or (at your option) any later version.
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13 Lesser General Public License for more details.
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15 You should have received a copy of the GNU Lesser General Public
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 License along with this library; if not, write to the Free Software
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 Sam Lantinga
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 slouken@libsdl.org
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 */
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	22 #include "SDL_config.h"
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	24 #include "SDL_video.h"
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	25 #include "SDL_blit.h"
2254 79e00f5561f4 Oops, didn't want to rename those files... Sam Lantinga <slouken@libsdl.org> parents: 2253 diff changeset	26 #include "SDL_blit_copy.h"
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28
2253 6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	29 #ifdef __SSE__
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	30 /* This assumes 16-byte aligned src and dst */
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	31 static __inline__ void
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	32 SDL_memcpySSE(Uint8 * dst, const Uint8 * src, int len)
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	33 {
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	34 int i;
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	35
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	36 __m128 values[4];
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	37 for (i = len / 64; i--;) {
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	38 _mm_prefetch(src, _MM_HINT_NTA);
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	39 values[0] = (__m128 ) (src + 0);
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	40 values[1] = (__m128 ) (src + 16);
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	41 values[2] = (__m128 ) (src + 32);
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	42 values[3] = (__m128 ) (src + 48);
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	43 _mm_stream_ps((float *) (dst + 0), values[0]);
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	44 _mm_stream_ps((float *) (dst + 16), values[1]);
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	45 _mm_stream_ps((float *) (dst + 32), values[2]);
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	46 _mm_stream_ps((float *) (dst + 48), values[3]);
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	47 src += 64;
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	48 dst += 64;
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	49 }
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	50
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	51 if (len & 63)
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	52 SDL_memcpy(dst, src, len & 63);
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	53 }
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	54 #endif /* __SSE__ */
6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	55
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	56 #ifdef __MMX__
2780 cc15254e44b6 Disable spurious warning Sam Lantinga <slouken@libsdl.org> parents: 2267 diff changeset	57 #ifdef _MSC_VER
cc15254e44b6 Disable spurious warning Sam Lantinga <slouken@libsdl.org> parents: 2267 diff changeset	58 #pragma warning(disable:4799)
cc15254e44b6 Disable spurious warning Sam Lantinga <slouken@libsdl.org> parents: 2267 diff changeset	59 #endif
2253 6d99edd791bf Added notes on the next steps for SDL 1.3 Sam Lantinga <slouken@libsdl.org> parents: 2252 diff changeset	60 /* This assumes 8-byte aligned src and dst */
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	61 static __inline__ void
2248 5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	62 SDL_memcpyMMX(Uint8 * dst, const Uint8 * src, int len)
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63 {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	64 int i;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	65
2248 5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	66 __m64 values[8];
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	67 for (i = len / 64; i--;) {
2248 5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	68 _mm_prefetch(src, _MM_HINT_NTA);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	69 values[0] = (__m64 ) (src + 0);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	70 values[1] = (__m64 ) (src + 8);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	71 values[2] = (__m64 ) (src + 16);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	72 values[3] = (__m64 ) (src + 24);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	73 values[4] = (__m64 ) (src + 32);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	74 values[5] = (__m64 ) (src + 40);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	75 values[6] = (__m64 ) (src + 48);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	76 values[7] = (__m64 ) (src + 56);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	77 _mm_stream_pi((__m64 *) (dst + 0), values[0]);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	78 _mm_stream_pi((__m64 *) (dst + 8), values[1]);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	79 _mm_stream_pi((__m64 *) (dst + 16), values[2]);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	80 _mm_stream_pi((__m64 *) (dst + 24), values[3]);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	81 _mm_stream_pi((__m64 *) (dst + 32), values[4]);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	82 _mm_stream_pi((__m64 *) (dst + 40), values[5]);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	83 _mm_stream_pi((__m64 *) (dst + 48), values[6]);
5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	84 _mm_stream_pi((__m64 *) (dst + 56), values[7]);
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85 src += 64;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 dst += 64;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87 }
2248 5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	88
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 if (len & 63)
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90 SDL_memcpy(dst, src, len & 63);
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	91 }
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	92 #endif /* __MMX__ */
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	94 void
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	95 SDL_BlitCopy(SDL_BlitInfo * info)
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96 {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97 Uint8 src, dst;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 int w, h;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	99 int srcskip, dstskip;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	101 w = 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: 2254 diff changeset	102 h = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2254 diff changeset	103 src = info->src;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2254 diff changeset	104 dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	105 srcskip = info->src_pitch;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	106 dstskip = info->dst_pitch;
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	107
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108 #ifdef __SSE__
2826 cd4a49d5c1ba Fixed crash on 64-bit systems Sam Lantinga <slouken@libsdl.org> parents: 2780 diff changeset	109 if (SDL_HasSSE() &&
cd4a49d5c1ba Fixed crash on 64-bit systems Sam Lantinga <slouken@libsdl.org> parents: 2780 diff changeset	110 !((uintptr_t) src & 15) && !(srcskip & 15) &&
cd4a49d5c1ba Fixed crash on 64-bit systems Sam Lantinga <slouken@libsdl.org> parents: 2780 diff changeset	111 !((uintptr_t) dst & 15) && !(dstskip & 15)) {
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	112 while (h--) {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	113 SDL_memcpySSE(dst, src, w);
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114 src += srcskip;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	115 dst += dstskip;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	116 }
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	117 return;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	118 }
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	119 #endif
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	120
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	121 #ifdef __MMX__
2826 cd4a49d5c1ba Fixed crash on 64-bit systems Sam Lantinga <slouken@libsdl.org> parents: 2780 diff changeset	122 if (SDL_HasMMX() &&
cd4a49d5c1ba Fixed crash on 64-bit systems Sam Lantinga <slouken@libsdl.org> parents: 2780 diff changeset	123 !((uintptr_t) src & 7) && !(srcskip & 7) &&
cd4a49d5c1ba Fixed crash on 64-bit systems Sam Lantinga <slouken@libsdl.org> parents: 2780 diff changeset	124 !((uintptr_t) dst & 7) && !(dstskip & 7)) {
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	125 while (h--) {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126 SDL_memcpyMMX(dst, src, w);
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 src += srcskip;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	128 dst += dstskip;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	129 }
2248 5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	130 _mm_empty();
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	131 return;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	132 }
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	133 #endif
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	134
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	135 while (h--) {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	136 SDL_memcpy(dst, src, w);
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	137 src += srcskip;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	138 dst += dstskip;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	139 }
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	140 }
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	141
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	142 void
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	143 SDL_BlitCopyOverlap(SDL_BlitInfo * info)
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145 Uint8 src, dst;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	146 int w, h;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	147 int skip;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	148
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	149 w = 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: 2254 diff changeset	150 h = info->dst_h;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2254 diff changeset	151 src = info->src;
bee005ace1bf Work in progress: merging new texture features into SDL blit system Sam Lantinga <slouken@libsdl.org> parents: 2254 diff changeset	152 dst = info->dst;
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	153 skip = info->src_pitch;
2248 5cd2a2293cf0 Okay, I figured out the intrinsics for SIMD memcpy Sam Lantinga <slouken@libsdl.org> parents: 2247 diff changeset	154 if ((dst < src) \|\| (dst >= (src + h * skip))) {
2247 93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	155 SDL_BlitCopy(info);
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	156 } else {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	157 src += ((h - 1) * skip);
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	158 dst += ((h - 1) * skip);
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	159 while (h--) {
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	160 SDL_revcpy(dst, src, w);
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	161 src -= skip;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	162 dst -= skip;
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	163 }
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	164 }
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	165 }
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	166
93994f65c74c Removed hermes since it's LGPL and not compatible with a commercial license. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	167 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_blit_copy.c @ 3466:a288892cd24c