Mercurial > sdl-ios-xcode

annotate src/video/SDL_blit_copy.c @ 3473:7bdc10624cba

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
This is terrible, but the OpenGL standard says that lines are half open, which means that one endpoint is not covered so adjoining lines don't overlap. It also doesn't define which end is open, and indeed Mac OS X and Linux differ. Mac OS X seems to leave the second endpoint open, but Linux uses the right-most endpoint for x major lines and the bottom-most endpoint for y major lines.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Nov 2009 07:14:21 +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: */