Mercurial > sdl-ios-xcode
annotate src/video/SDL_blit.h @ 2263:900c35d8e8fd
More work in progress, still doesn't compile...
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 17 Aug 2007 06:40:12 +0000 |
| parents | bee005ace1bf |
| children | e61ad15a205f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1162
diff
changeset
|
3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 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:
1162
diff
changeset
|
6 modify it under the terms of the GNU Lesser General Public |
| 0 | 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:
1162
diff
changeset
|
8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 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:
1162
diff
changeset
|
13 Lesser General Public License for more details. |
| 0 | 14 |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1162
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:
1162
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:
1162
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
163
diff
changeset
|
20 slouken@libsdl.org |
| 0 | 21 */ |
|
1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
22 #include "SDL_config.h" |
| 0 | 23 |
| 24 #ifndef _SDL_blit_h | |
| 25 #define _SDL_blit_h | |
| 26 | |
|
2249
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
27 #ifdef __MMX__ |
|
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
28 #include <mmintrin.h> |
|
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
29 #endif |
|
2261
c20476d7d7b3
Enabled 3DNow! intrinsic support
Sam Lantinga <slouken@libsdl.org>
parents:
2260
diff
changeset
|
30 #ifdef __3dNOW__ |
|
c20476d7d7b3
Enabled 3DNow! intrinsic support
Sam Lantinga <slouken@libsdl.org>
parents:
2260
diff
changeset
|
31 #include <mm3dnow.h> |
|
c20476d7d7b3
Enabled 3DNow! intrinsic support
Sam Lantinga <slouken@libsdl.org>
parents:
2260
diff
changeset
|
32 #endif |
|
2249
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
33 #ifdef __SSE__ |
|
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
34 #include <xmmintrin.h> |
|
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
35 #endif |
|
2262
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
36 #ifdef __SSE2__ |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
37 #include <emmintrin.h> |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
38 #endif |
|
2249
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
39 |
|
2250
e1d228456537
Fixed a few compiler warnings.
Sam Lantinga <slouken@libsdl.org>
parents:
2249
diff
changeset
|
40 #include "SDL_cpuinfo.h" |
| 0 | 41 #include "SDL_endian.h" |
| 42 | |
|
2262
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
43 /* SDL blit copy flags */ |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
44 #define SDL_COPY_MODULATE_COLOR 0x0001 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
45 #define SDL_COPY_MODULATE_ALPHA 0x0002 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
46 #define SDL_COPY_MASK 0x0010 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
47 #define SDL_COPY_BLEND 0x0020 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
48 #define SDL_COPY_ADD 0x0040 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
49 #define SDL_COPY_MOD 0x0080 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
50 #define SDL_COPY_COLORKEY 0x0100 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
51 #define SDL_COPY_NEAREST 0x0200 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
52 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
53 /* SDL blit CPU flags */ |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
54 #define SDL_CPU_ANY 0x0000 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
55 #define SDL_CPU_MMX 0x0001 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
56 #define SDL_CPU_3DNOW 0x0002 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
57 #define SDL_CPU_SSE 0x0004 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
58 #define SDL_CPU_SSE2 0x0008 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
59 #define SDL_CPU_ALTIVEC_PREFETCH 0x0010 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
60 #define SDL_CPU_ALTIVEC_NOPREFETCH 0x0020 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
61 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
62 typedef struct { |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
63 Uint8 *src; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
64 int src_w, src_h; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
65 int src_pitch; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
66 Uint8 *dst; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
67 int dst_w, dst_h; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
68 int dst_pitch; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
69 SDL_PixelFormat *src_fmt; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
70 SDL_PixelFormat *dst_fmt; |
|
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 Uint8 *table; |
|
2262
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
72 int flags; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
73 Uint32 colorkey; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
74 Uint8 r, g, b, a; |
| 0 | 75 } SDL_BlitInfo; |
| 76 | |
|
2262
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
77 typedef void (SDLCALL * SDL_BlitFunc)(SDL_BlitInfo *info); |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
78 |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
79 typedef struct { |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
80 Uint32 src_format; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
81 Uint32 dst_format; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
82 int flags; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
83 int cpu; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
84 SDL_BlitFunc func; |
|
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
85 } SDL_BlitFuncEntry; |
| 0 | 86 |
| 87 /* Blit mapping definition */ | |
|
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 typedef struct SDL_BlitMap |
|
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
|
89 { |
|
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 SDL_Surface *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
|
91 int identity; |
|
2257
340942cfda48
Moved the colorkey and per-surface alpha into the blit info,
Sam Lantinga <slouken@libsdl.org>
parents:
2251
diff
changeset
|
92 SDL_blit blit; |
|
340942cfda48
Moved the colorkey and per-surface alpha into the blit info,
Sam Lantinga <slouken@libsdl.org>
parents:
2251
diff
changeset
|
93 void *data; |
|
2262
bee005ace1bf
Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents:
2261
diff
changeset
|
94 SDL_BlitInfo info; |
| 0 | 95 |
|
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
|
96 /* the version count matches the destination; mismatch indicates |
|
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 an invalid mapping */ |
|
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 unsigned int format_version; |
| 0 | 99 } SDL_BlitMap; |
| 100 | |
| 101 /* Functions found in SDL_blit.c */ | |
|
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
|
102 extern int SDL_CalculateBlit(SDL_Surface * surface); |
| 0 | 103 |
|
2263
900c35d8e8fd
More work in progress, still doesn't compile...
Sam Lantinga <slouken@libsdl.org>
parents:
2262
diff
changeset
|
104 /* Blit function tables in SDL_blit_*.c */ |
|
900c35d8e8fd
More work in progress, still doesn't compile...
Sam Lantinga <slouken@libsdl.org>
parents:
2262
diff
changeset
|
105 extern SDL_BlitFuncEntry SDL_BlitFuncTable0[]; |
|
900c35d8e8fd
More work in progress, still doesn't compile...
Sam Lantinga <slouken@libsdl.org>
parents:
2262
diff
changeset
|
106 extern SDL_BlitFuncEntry SDL_BlitFuncTable1[]; |
|
900c35d8e8fd
More work in progress, still doesn't compile...
Sam Lantinga <slouken@libsdl.org>
parents:
2262
diff
changeset
|
107 extern SDL_BlitFuncEntry SDL_BlitFuncTableN[]; |
|
900c35d8e8fd
More work in progress, still doesn't compile...
Sam Lantinga <slouken@libsdl.org>
parents:
2262
diff
changeset
|
108 |
| 0 | 109 /* |
| 110 * Useful macros for blitting routines | |
| 111 */ | |
| 112 | |
|
2249
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
113 #if defined(__GNUC__) |
|
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
114 #define DECLARE_ALIGNED(t,v,a) t __attribute__((aligned(a))) v |
|
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
115 #elif defined(_MSC_VER) |
|
2251
292bee385630
SSE and MMX intrinsics work with Visual Studio now...
Sam Lantinga <slouken@libsdl.org>
parents:
2250
diff
changeset
|
116 #define DECLARE_ALIGNED(t,v,a) __declspec(align(a)) t v |
|
2249
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
117 #else |
|
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
118 #define DECLARE_ALIGNED(t,v,a) t v |
|
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
119 #endif |
|
5a58b57b6724
Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents:
2247
diff
changeset
|
120 |
| 0 | 121 #define FORMAT_EQUAL(A, B) \ |
| 122 ((A)->BitsPerPixel == (B)->BitsPerPixel \ | |
| 123 && ((A)->Rmask == (B)->Rmask) && ((A)->Amask == (B)->Amask)) | |
| 124 | |
| 125 /* Load pixel of the specified format from a buffer and get its R-G-B values */ | |
| 126 /* FIXME: rescale values to 0..255 here? */ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
127 #define RGB_FROM_PIXEL(Pixel, fmt, r, g, b) \ |
| 0 | 128 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
129 r = (((Pixel&fmt->Rmask)>>fmt->Rshift)<<fmt->Rloss); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
130 g = (((Pixel&fmt->Gmask)>>fmt->Gshift)<<fmt->Gloss); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
131 b = (((Pixel&fmt->Bmask)>>fmt->Bshift)<<fmt->Bloss); \ |
| 0 | 132 } |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
133 #define RGB_FROM_RGB565(Pixel, r, g, b) \ |
| 0 | 134 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
135 r = (((Pixel&0xF800)>>11)<<3); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
136 g = (((Pixel&0x07E0)>>5)<<2); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
137 b = ((Pixel&0x001F)<<3); \ |
| 0 | 138 } |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
139 #define RGB_FROM_RGB555(Pixel, r, g, b) \ |
| 0 | 140 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
141 r = (((Pixel&0x7C00)>>10)<<3); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
142 g = (((Pixel&0x03E0)>>5)<<3); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
143 b = ((Pixel&0x001F)<<3); \ |
| 0 | 144 } |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
145 #define RGB_FROM_RGB888(Pixel, r, g, b) \ |
| 0 | 146 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
147 r = ((Pixel&0xFF0000)>>16); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
148 g = ((Pixel&0xFF00)>>8); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
149 b = (Pixel&0xFF); \ |
| 0 | 150 } |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
151 #define RETRIEVE_RGB_PIXEL(buf, bpp, Pixel) \ |
| 0 | 152 do { \ |
| 153 switch (bpp) { \ | |
| 154 case 2: \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
155 Pixel = *((Uint16 *)(buf)); \ |
| 0 | 156 break; \ |
| 157 \ | |
| 158 case 3: { \ | |
| 159 Uint8 *B = (Uint8 *)(buf); \ | |
| 160 if(SDL_BYTEORDER == SDL_LIL_ENDIAN) { \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
161 Pixel = B[0] + (B[1] << 8) + (B[2] << 16); \ |
| 0 | 162 } else { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
163 Pixel = (B[0] << 16) + (B[1] << 8) + B[2]; \ |
| 0 | 164 } \ |
| 165 } \ | |
| 166 break; \ | |
| 167 \ | |
| 168 case 4: \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
169 Pixel = *((Uint32 *)(buf)); \ |
| 0 | 170 break; \ |
| 171 \ | |
| 172 default: \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
173 Pixel = 0; /* appease gcc */ \ |
| 0 | 174 break; \ |
| 175 } \ | |
| 176 } while(0) | |
| 177 | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
178 #define DISEMBLE_RGB(buf, bpp, fmt, Pixel, r, g, b) \ |
| 0 | 179 do { \ |
| 180 switch (bpp) { \ | |
| 181 case 2: \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
182 Pixel = *((Uint16 *)(buf)); \ |
| 0 | 183 break; \ |
| 184 \ | |
| 185 case 3: { \ | |
| 186 Uint8 *B = (Uint8 *)buf; \ | |
| 187 if(SDL_BYTEORDER == SDL_LIL_ENDIAN) { \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
188 Pixel = B[0] + (B[1] << 8) + (B[2] << 16); \ |
| 0 | 189 } else { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
190 Pixel = (B[0] << 16) + (B[1] << 8) + B[2]; \ |
| 0 | 191 } \ |
| 192 } \ | |
| 193 break; \ | |
| 194 \ | |
| 195 case 4: \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
196 Pixel = *((Uint32 *)(buf)); \ |
| 0 | 197 break; \ |
| 198 \ | |
| 199 default: \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
200 Pixel = 0; /* prevent gcc from complaining */ \ |
| 0 | 201 break; \ |
| 202 } \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
203 RGB_FROM_PIXEL(Pixel, fmt, r, g, b); \ |
| 0 | 204 } while(0) |
| 205 | |
| 206 /* Assemble R-G-B values into a specified pixel format and store them */ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
207 #define PIXEL_FROM_RGB(Pixel, fmt, r, g, b) \ |
| 0 | 208 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
209 Pixel = ((r>>fmt->Rloss)<<fmt->Rshift)| \ |
| 0 | 210 ((g>>fmt->Gloss)<<fmt->Gshift)| \ |
| 211 ((b>>fmt->Bloss)<<fmt->Bshift); \ | |
| 212 } | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
213 #define RGB565_FROM_RGB(Pixel, r, g, b) \ |
| 0 | 214 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
215 Pixel = ((r>>3)<<11)|((g>>2)<<5)|(b>>3); \ |
| 0 | 216 } |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
217 #define RGB555_FROM_RGB(Pixel, r, g, b) \ |
| 0 | 218 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
219 Pixel = ((r>>3)<<10)|((g>>3)<<5)|(b>>3); \ |
| 0 | 220 } |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
221 #define RGB888_FROM_RGB(Pixel, r, g, b) \ |
| 0 | 222 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
223 Pixel = (r<<16)|(g<<8)|b; \ |
| 0 | 224 } |
| 225 #define ASSEMBLE_RGB(buf, bpp, fmt, r, g, b) \ | |
| 226 { \ | |
| 227 switch (bpp) { \ | |
| 228 case 2: { \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
229 Uint16 Pixel; \ |
| 0 | 230 \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
231 PIXEL_FROM_RGB(Pixel, fmt, r, g, b); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
232 *((Uint16 *)(buf)) = Pixel; \ |
| 0 | 233 } \ |
| 234 break; \ | |
| 235 \ | |
| 236 case 3: { \ | |
| 237 if(SDL_BYTEORDER == SDL_LIL_ENDIAN) { \ | |
| 238 *((buf)+fmt->Rshift/8) = r; \ | |
| 239 *((buf)+fmt->Gshift/8) = g; \ | |
| 240 *((buf)+fmt->Bshift/8) = b; \ | |
| 241 } else { \ | |
| 242 *((buf)+2-fmt->Rshift/8) = r; \ | |
| 243 *((buf)+2-fmt->Gshift/8) = g; \ | |
| 244 *((buf)+2-fmt->Bshift/8) = b; \ | |
| 245 } \ | |
| 246 } \ | |
| 247 break; \ | |
| 248 \ | |
| 249 case 4: { \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
250 Uint32 Pixel; \ |
| 0 | 251 \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
252 PIXEL_FROM_RGB(Pixel, fmt, r, g, b); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
253 *((Uint32 *)(buf)) = Pixel; \ |
| 0 | 254 } \ |
| 255 break; \ | |
| 256 } \ | |
| 257 } | |
| 258 #define ASSEMBLE_RGB_AMASK(buf, bpp, fmt, r, g, b, Amask) \ | |
| 259 { \ | |
| 260 switch (bpp) { \ | |
| 261 case 2: { \ | |
| 262 Uint16 *bufp; \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
263 Uint16 Pixel; \ |
| 0 | 264 \ |
| 265 bufp = (Uint16 *)buf; \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
266 PIXEL_FROM_RGB(Pixel, fmt, r, g, b); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
267 *bufp = Pixel | (*bufp & Amask); \ |
| 0 | 268 } \ |
| 269 break; \ | |
| 270 \ | |
| 271 case 3: { \ | |
| 272 if(SDL_BYTEORDER == SDL_LIL_ENDIAN) { \ | |
| 273 *((buf)+fmt->Rshift/8) = r; \ | |
| 274 *((buf)+fmt->Gshift/8) = g; \ | |
| 275 *((buf)+fmt->Bshift/8) = b; \ | |
| 276 } else { \ | |
| 277 *((buf)+2-fmt->Rshift/8) = r; \ | |
| 278 *((buf)+2-fmt->Gshift/8) = g; \ | |
| 279 *((buf)+2-fmt->Bshift/8) = b; \ | |
| 280 } \ | |
| 281 } \ | |
| 282 break; \ | |
| 283 \ | |
| 284 case 4: { \ | |
| 285 Uint32 *bufp; \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
286 Uint32 Pixel; \ |
| 0 | 287 \ |
| 288 bufp = (Uint32 *)buf; \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
289 PIXEL_FROM_RGB(Pixel, fmt, r, g, b); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
290 *bufp = Pixel | (*bufp & Amask); \ |
| 0 | 291 } \ |
| 292 break; \ | |
| 293 } \ | |
| 294 } | |
| 295 | |
| 296 /* FIXME: Should we rescale alpha into 0..255 here? */ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
297 #define RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a) \ |
| 0 | 298 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
299 r = ((Pixel&fmt->Rmask)>>fmt->Rshift)<<fmt->Rloss; \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
300 g = ((Pixel&fmt->Gmask)>>fmt->Gshift)<<fmt->Gloss; \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
301 b = ((Pixel&fmt->Bmask)>>fmt->Bshift)<<fmt->Bloss; \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
302 a = ((Pixel&fmt->Amask)>>fmt->Ashift)<<fmt->Aloss; \ |
| 0 | 303 } |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
304 #define RGBA_FROM_8888(Pixel, fmt, r, g, b, a) \ |
| 0 | 305 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
306 r = (Pixel&fmt->Rmask)>>fmt->Rshift; \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
307 g = (Pixel&fmt->Gmask)>>fmt->Gshift; \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
308 b = (Pixel&fmt->Bmask)>>fmt->Bshift; \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
309 a = (Pixel&fmt->Amask)>>fmt->Ashift; \ |
| 0 | 310 } |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
311 #define RGBA_FROM_RGBA8888(Pixel, r, g, b, a) \ |
| 0 | 312 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
313 r = (Pixel>>24); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
314 g = ((Pixel>>16)&0xFF); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
315 b = ((Pixel>>8)&0xFF); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
316 a = (Pixel&0xFF); \ |
| 0 | 317 } |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
318 #define RGBA_FROM_ARGB8888(Pixel, r, g, b, a) \ |
| 0 | 319 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
320 r = ((Pixel>>16)&0xFF); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
321 g = ((Pixel>>8)&0xFF); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
322 b = (Pixel&0xFF); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
323 a = (Pixel>>24); \ |
| 0 | 324 } |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
325 #define RGBA_FROM_ABGR8888(Pixel, r, g, b, a) \ |
| 0 | 326 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
327 r = (Pixel&0xFF); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
328 g = ((Pixel>>8)&0xFF); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
329 b = ((Pixel>>16)&0xFF); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
330 a = (Pixel>>24); \ |
| 0 | 331 } |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
332 #define DISEMBLE_RGBA(buf, bpp, fmt, Pixel, r, g, b, a) \ |
| 0 | 333 do { \ |
| 334 switch (bpp) { \ | |
| 335 case 2: \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
336 Pixel = *((Uint16 *)(buf)); \ |
| 0 | 337 break; \ |
| 338 \ | |
| 339 case 3: {/* FIXME: broken code (no alpha) */ \ | |
| 340 Uint8 *b = (Uint8 *)buf; \ | |
| 341 if(SDL_BYTEORDER == SDL_LIL_ENDIAN) { \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
342 Pixel = b[0] + (b[1] << 8) + (b[2] << 16); \ |
| 0 | 343 } else { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
344 Pixel = (b[0] << 16) + (b[1] << 8) + b[2]; \ |
| 0 | 345 } \ |
| 346 } \ | |
| 347 break; \ | |
| 348 \ | |
| 349 case 4: \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
350 Pixel = *((Uint32 *)(buf)); \ |
| 0 | 351 break; \ |
| 352 \ | |
| 353 default: \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
354 Pixel = 0; /* stop gcc complaints */ \ |
| 0 | 355 break; \ |
| 356 } \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
357 RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
358 Pixel &= ~fmt->Amask; \ |
| 0 | 359 } while(0) |
| 360 | |
| 361 /* FIXME: this isn't correct, especially for Alpha (maximum != 255) */ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
362 #define PIXEL_FROM_RGBA(Pixel, fmt, r, g, b, a) \ |
| 0 | 363 { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
364 Pixel = ((r>>fmt->Rloss)<<fmt->Rshift)| \ |
| 0 | 365 ((g>>fmt->Gloss)<<fmt->Gshift)| \ |
| 366 ((b>>fmt->Bloss)<<fmt->Bshift)| \ | |
|
535
917cc5c56176
Fixed alpha blending bug (thanks Glenn!)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
367 ((a>>fmt->Aloss)<<fmt->Ashift); \ |
| 0 | 368 } |
| 369 #define ASSEMBLE_RGBA(buf, bpp, fmt, r, g, b, a) \ | |
| 370 { \ | |
| 371 switch (bpp) { \ | |
| 372 case 2: { \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
373 Uint16 Pixel; \ |
| 0 | 374 \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
375 PIXEL_FROM_RGBA(Pixel, fmt, r, g, b, a); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
376 *((Uint16 *)(buf)) = Pixel; \ |
| 0 | 377 } \ |
| 378 break; \ | |
| 379 \ | |
| 380 case 3: { /* FIXME: broken code (no alpha) */ \ | |
| 381 if(SDL_BYTEORDER == SDL_LIL_ENDIAN) { \ | |
| 382 *((buf)+fmt->Rshift/8) = r; \ | |
| 383 *((buf)+fmt->Gshift/8) = g; \ | |
| 384 *((buf)+fmt->Bshift/8) = b; \ | |
| 385 } else { \ | |
| 386 *((buf)+2-fmt->Rshift/8) = r; \ | |
| 387 *((buf)+2-fmt->Gshift/8) = g; \ | |
| 388 *((buf)+2-fmt->Bshift/8) = b; \ | |
| 389 } \ | |
| 390 } \ | |
| 391 break; \ | |
| 392 \ | |
| 393 case 4: { \ | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
394 Uint32 Pixel; \ |
| 0 | 395 \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
396 PIXEL_FROM_RGBA(Pixel, fmt, r, g, b, a); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
397 *((Uint32 *)(buf)) = Pixel; \ |
| 0 | 398 } \ |
| 399 break; \ | |
| 400 } \ | |
| 401 } | |
| 402 | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
403 /* Blend the RGB values of two Pixels based on a source alpha value */ |
| 0 | 404 #define ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB) \ |
| 405 do { \ | |
| 406 dR = (((sR-dR)*(A))>>8)+dR; \ | |
| 407 dG = (((sG-dG)*(A))>>8)+dG; \ | |
| 408 dB = (((sB-dB)*(A))>>8)+dB; \ | |
| 409 } while(0) | |
| 410 | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
411 /* Blend the RGB values of two Pixels based on a source alpha value */ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
412 #define ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
413 do { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
414 unsigned tR, tG, tB, tA; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
415 tA = 255 - sA; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
416 tR = 1 + (sR * sA) + (dR * tA); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
417 dR = (tR + (tR >> 8)) >> 8; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
418 tG = 1 + (sG * sA) + (dG * tA); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
419 dG = (tG + (tG >> 8)) >> 8; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
420 tB = 1 + (sB * sA) + (dB * tA); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
421 dB = (tB + (tB >> 8)) >> 8; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
422 } while(0) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
423 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
424 |
| 0 | 425 /* This is a very useful loop for optimizing blitters */ |
|
553
417f8709e648
There's a bug in the VC7 optimizer relating to the duff loop optimization
Sam Lantinga <slouken@libsdl.org>
parents:
535
diff
changeset
|
426 #if defined(_MSC_VER) && (_MSC_VER == 1300) |
|
417f8709e648
There's a bug in the VC7 optimizer relating to the duff loop optimization
Sam Lantinga <slouken@libsdl.org>
parents:
535
diff
changeset
|
427 /* There's a bug in the Visual C++ 7 optimizer when compiling this code */ |
|
417f8709e648
There's a bug in the VC7 optimizer relating to the duff loop optimization
Sam Lantinga <slouken@libsdl.org>
parents:
535
diff
changeset
|
428 #else |
| 0 | 429 #define USE_DUFFS_LOOP |
|
553
417f8709e648
There's a bug in the VC7 optimizer relating to the duff loop optimization
Sam Lantinga <slouken@libsdl.org>
parents:
535
diff
changeset
|
430 #endif |
| 0 | 431 #ifdef USE_DUFFS_LOOP |
| 432 | |
| 433 /* 8-times unrolled loop */ | |
| 434 #define DUFFS_LOOP8(pixel_copy_increment, width) \ | |
| 435 { int n = (width+7)/8; \ | |
|
91
e85e03f195b4
From: "Markus F.X.J. Oberhumer"
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
436 switch (width & 7) { \ |
| 0 | 437 case 0: do { pixel_copy_increment; \ |
| 438 case 7: pixel_copy_increment; \ | |
| 439 case 6: pixel_copy_increment; \ | |
| 440 case 5: pixel_copy_increment; \ | |
| 441 case 4: pixel_copy_increment; \ | |
| 442 case 3: pixel_copy_increment; \ | |
| 443 case 2: pixel_copy_increment; \ | |
| 444 case 1: pixel_copy_increment; \ | |
| 445 } while ( --n > 0 ); \ | |
| 446 } \ | |
| 447 } | |
| 448 | |
| 449 /* 4-times unrolled loop */ | |
| 450 #define DUFFS_LOOP4(pixel_copy_increment, width) \ | |
| 451 { int n = (width+3)/4; \ | |
|
91
e85e03f195b4
From: "Markus F.X.J. Oberhumer"
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
452 switch (width & 3) { \ |
| 0 | 453 case 0: do { pixel_copy_increment; \ |
| 454 case 3: pixel_copy_increment; \ | |
| 455 case 2: pixel_copy_increment; \ | |
| 456 case 1: pixel_copy_increment; \ | |
| 457 } while ( --n > 0 ); \ | |
| 458 } \ | |
| 459 } | |
| 460 | |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
461 /* 2 - times unrolled loop */ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
462 #define DUFFS_LOOP_DOUBLE2(pixel_copy_increment, \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
463 double_pixel_copy_increment, width) \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
464 { int n, w = width; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
465 if( w & 1 ) { \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
466 pixel_copy_increment; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
467 w--; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
468 } \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
469 if ( w > 0 ) { \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
470 n = ( w + 2) / 4; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
471 switch( w & 2 ) { \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
472 case 0: do { double_pixel_copy_increment; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
473 case 2: double_pixel_copy_increment; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
474 } while ( --n > 0 ); \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
475 } \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
476 } \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
477 } |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
478 |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
479 /* 2 - times unrolled loop 4 pixels */ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
480 #define DUFFS_LOOP_QUATRO2(pixel_copy_increment, \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
481 double_pixel_copy_increment, \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
482 quatro_pixel_copy_increment, width) \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
483 { int n, w = width; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
484 if(w & 1) { \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
485 pixel_copy_increment; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
486 w--; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
487 } \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
488 if(w & 2) { \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
489 double_pixel_copy_increment; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
490 w -= 2; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
491 } \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
492 if ( w > 0 ) { \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
493 n = ( w + 7 ) / 8; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
494 switch( w & 4 ) { \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
495 case 0: do { quatro_pixel_copy_increment; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
496 case 4: quatro_pixel_copy_increment; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
497 } while ( --n > 0 ); \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
498 } \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
499 } \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
500 } |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
501 |
| 0 | 502 /* Use the 8-times version of the loop by default */ |
| 503 #define DUFFS_LOOP(pixel_copy_increment, width) \ | |
| 504 DUFFS_LOOP8(pixel_copy_increment, width) | |
| 505 | |
| 506 #else | |
| 507 | |
| 508 /* Don't use Duff's device to unroll loops */ | |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
509 #define DUFFS_LOOP_DOUBLE2(pixel_copy_increment, \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
510 double_pixel_copy_increment, width) \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
511 { int n = width; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
512 if( n & 1 ) { \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
513 pixel_copy_increment; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
514 n--; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
515 } \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
516 n=n>>1; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
517 for(; n > 0; --n) { \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
518 double_pixel_copy_increment; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
519 } \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
520 } |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
521 |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
522 /* Don't use Duff's device to unroll loops */ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
523 #define DUFFS_LOOP_QUATRO2(pixel_copy_increment, \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
524 double_pixel_copy_increment, \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
525 quatro_pixel_copy_increment, width) \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
526 { int n = width; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
527 if(n & 1) { \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
528 pixel_copy_increment; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
529 n--; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
530 } \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
531 if(n & 2) { \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
532 double_pixel_copy_increment; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
533 n -= 2; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
534 } \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
535 n=n>>2; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
536 for(; n > 0; --n) { \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
537 quatro_pixel_copy_increment; \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
538 } \ |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
539 } |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
540 |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
553
diff
changeset
|
541 /* Don't use Duff's device to unroll loops */ |
| 0 | 542 #define DUFFS_LOOP(pixel_copy_increment, width) \ |
| 543 { int n; \ | |
| 544 for ( n=width; n > 0; --n ) { \ | |
| 545 pixel_copy_increment; \ | |
| 546 } \ | |
| 547 } | |
| 548 #define DUFFS_LOOP8(pixel_copy_increment, width) \ | |
| 549 DUFFS_LOOP(pixel_copy_increment, width) | |
| 550 #define DUFFS_LOOP4(pixel_copy_increment, width) \ | |
| 551 DUFFS_LOOP(pixel_copy_increment, width) | |
| 552 | |
| 553 #endif /* USE_DUFFS_LOOP */ | |
| 554 | |
| 555 /* Prevent Visual C++ 6.0 from printing out stupid warnings */ | |
| 556 #if defined(_MSC_VER) && (_MSC_VER >= 600) | |
| 557 #pragma warning(disable: 4550) | |
| 558 #endif | |
| 559 | |
| 560 #endif /* _SDL_blit_h */ | |
|
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
|
561 /* vi: set ts=4 sw=4 expandtab: */ |