Mercurial > sdl-ios-xcode

annotate src/video/SDL_blit.h @ 3697:f7b03b6838cb

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fixed bug #926 Updated copyright to LGPL version 2.1 and year 2010
author Sam Lantinga <slouken@libsdl.org>
date Sun, 24 Jan 2010 21:10:53 +0000
parents 76667e288846
children 1bceff8f008f
rev   line source
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
3697
f7b03b6838cb Fixed bug #926
Sam Lantinga <slouken@libsdl.org>
parents: 3631
diff changeset
3 Copyright (C) 1997-2010 Sam Lantinga
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
4
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1162
diff changeset
6 modify it under the terms of the GNU Lesser General Public
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1162
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
9
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1162
diff changeset
13 Lesser General Public License for more details.
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
14
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 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
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
18
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
19 Sam Lantinga
252
e8157fcb3114 Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents: 163
diff changeset
20 slouken@libsdl.org
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
21 */
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
22 #include "SDL_config.h"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
23
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
24 #ifndef _SDL_blit_h
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
25 #define _SDL_blit_h
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
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
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
41 #include "SDL_endian.h"
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
42 #include "SDL_video.h"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
43
2262
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
44 /* SDL blit copy flags */
2266
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
45 #define SDL_COPY_MODULATE_COLOR 0x00000001
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
46 #define SDL_COPY_MODULATE_ALPHA 0x00000002
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
47 #define SDL_COPY_MASK 0x00000010
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
48 #define SDL_COPY_BLEND 0x00000020
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
49 #define SDL_COPY_ADD 0x00000040
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
50 #define SDL_COPY_MOD 0x00000080
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
51 #define SDL_COPY_COLORKEY 0x00000100
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
52 #define SDL_COPY_NEAREST 0x00000200
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
53 #define SDL_COPY_RLE_DESIRED 0x00001000
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
54 #define SDL_COPY_RLE_COLORKEY 0x00002000
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
55 #define SDL_COPY_RLE_ALPHAKEY 0x00004000
2853
6258fa7cd300 Fixed picking blit function when RLE fails
Sam Lantinga <slouken@libsdl.org>
parents: 2824
diff changeset
56 #define SDL_COPY_RLE_MASK (SDL_COPY_RLE_DESIRED|SDL_COPY_RLE_COLORKEY|SDL_COPY_RLE_ALPHAKEY)
2262
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
57
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
58 /* SDL blit CPU flags */
2266
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
59 #define SDL_CPU_ANY 0x00000000
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
60 #define SDL_CPU_MMX 0x00000001
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
61 #define SDL_CPU_3DNOW 0x00000002
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
62 #define SDL_CPU_SSE 0x00000004
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
63 #define SDL_CPU_SSE2 0x00000008
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
64 #define SDL_CPU_ALTIVEC_PREFETCH 0x00000010
e61ad15a205f More work in progress integrating SDL_Surface and the new SDL_Texture API
Sam Lantinga <slouken@libsdl.org>
parents: 2263
diff changeset
65 #define SDL_CPU_ALTIVEC_NOPREFETCH 0x00000020
2262
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
66
2267
c785543d1843 Okay, still some bugs, but everything builds again...
Sam Lantinga <slouken@libsdl.org>
parents: 2266
diff changeset
67 typedef struct
c785543d1843 Okay, still some bugs, but everything builds again...
Sam Lantinga <slouken@libsdl.org>
parents: 2266
diff changeset
68 {
2262
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
69 Uint8 *src;
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
70 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
71 int src_pitch;
2267
c785543d1843 Okay, still some bugs, but everything builds again...
Sam Lantinga <slouken@libsdl.org>
parents: 2266
diff changeset
72 int src_skip;
2262
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
73 Uint8 *dst;
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
74 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
75 int dst_pitch;
2267
c785543d1843 Okay, still some bugs, but everything builds again...
Sam Lantinga <slouken@libsdl.org>
parents: 2266
diff changeset
76 int dst_skip;
2262
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
77 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
78 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
79 Uint8 *table;
2262
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
80 int flags;
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
81 Uint32 colorkey;
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
82 Uint8 r, g, b, a;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
83 } SDL_BlitInfo;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
84
2267
c785543d1843 Okay, still some bugs, but everything builds again...
Sam Lantinga <slouken@libsdl.org>
parents: 2266
diff changeset
85 typedef void (SDLCALL * SDL_BlitFunc) (SDL_BlitInfo * info);
2262
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
86
2267
c785543d1843 Okay, still some bugs, but everything builds again...
Sam Lantinga <slouken@libsdl.org>
parents: 2266
diff changeset
87 typedef struct
c785543d1843 Okay, still some bugs, but everything builds again...
Sam Lantinga <slouken@libsdl.org>
parents: 2266
diff changeset
88 {
2262
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
89 Uint32 src_format;
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
90 Uint32 dst_format;
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
91 int flags;
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
92 int cpu;
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
93 SDL_BlitFunc func;
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
94 } SDL_BlitFuncEntry;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
95
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
96 /* 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
97 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
98 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
99 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
100 int identity;
2257
340942cfda48 Moved the colorkey and per-surface alpha into the blit info,
Sam Lantinga <slouken@libsdl.org>
parents: 2251
diff changeset
101 SDL_blit blit;
340942cfda48 Moved the colorkey and per-surface alpha into the blit info,
Sam Lantinga <slouken@libsdl.org>
parents: 2251
diff changeset
102 void *data;
2262
bee005ace1bf Work in progress: merging new texture features into SDL blit system
Sam Lantinga <slouken@libsdl.org>
parents: 2261
diff changeset
103 SDL_BlitInfo info;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
104
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
105 /* 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
106 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
107 unsigned int format_version;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
108 } SDL_BlitMap;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
109
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
110 /* 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
111 extern int SDL_CalculateBlit(SDL_Surface * surface);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
112
2267
c785543d1843 Okay, still some bugs, but everything builds again...
Sam Lantinga <slouken@libsdl.org>
parents: 2266
diff changeset
113 /* Functions found in SDL_blit_*.c */
c785543d1843 Okay, still some bugs, but everything builds again...
Sam Lantinga <slouken@libsdl.org>
parents: 2266
diff changeset
114 extern SDL_BlitFunc SDL_CalculateBlit0(SDL_Surface * surface);
c785543d1843 Okay, still some bugs, but everything builds again...
Sam Lantinga <slouken@libsdl.org>
parents: 2266
diff changeset
115 extern SDL_BlitFunc SDL_CalculateBlit1(SDL_Surface * surface);
c785543d1843 Okay, still some bugs, but everything builds again...
Sam Lantinga <slouken@libsdl.org>
parents: 2266
diff changeset
116 extern SDL_BlitFunc SDL_CalculateBlitN(SDL_Surface * surface);
c785543d1843 Okay, still some bugs, but everything builds again...
Sam Lantinga <slouken@libsdl.org>
parents: 2266
diff changeset
117 extern SDL_BlitFunc SDL_CalculateBlitA(SDL_Surface * surface);
2263
900c35d8e8fd More work in progress, still doesn't compile...
Sam Lantinga <slouken@libsdl.org>
parents: 2262
diff changeset
118
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
119 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
120 * Useful macros for blitting routines
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
121 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
122
2249
5a58b57b6724 Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents: 2247
diff changeset
123 #if defined(__GNUC__)
5a58b57b6724 Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents: 2247
diff changeset
124 #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
125 #elif defined(_MSC_VER)
2251
292bee385630 SSE and MMX intrinsics work with Visual Studio now...
Sam Lantinga <slouken@libsdl.org>
parents: 2250
diff changeset
126 #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
127 #else
5a58b57b6724 Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents: 2247
diff changeset
128 #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
129 #endif
5a58b57b6724 Added SSE and MMX optimization for SDL_FillRect()
Sam Lantinga <slouken@libsdl.org>
parents: 2247
diff changeset
130
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
131 #define FORMAT_EQUAL(A, B) \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
132 ((A)->BitsPerPixel == (B)->BitsPerPixel \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
133 && ((A)->Rmask == (B)->Rmask) && ((A)->Amask == (B)->Amask))
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
134
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
135 /* Load pixel of the specified format from a buffer and get its R-G-B values */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
136 /* 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
137 #define RGB_FROM_PIXEL(Pixel, fmt, r, g, b) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
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 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
140 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
141 b = (((Pixel&fmt->Bmask)>>fmt->Bshift)<<fmt->Bloss); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
142 }
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
143 #define RGB_FROM_RGB565(Pixel, r, g, b) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
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 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
146 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
147 b = ((Pixel&0x001F)<<3); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
148 }
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
149 #define RGB_FROM_RGB555(Pixel, r, g, b) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
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 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
152 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
153 b = ((Pixel&0x001F)<<3); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
154 }
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
155 #define RGB_FROM_RGB888(Pixel, r, g, b) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
156 { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
157 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
158 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
159 b = (Pixel&0xFF); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
160 }
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
161 #define RETRIEVE_RGB_PIXEL(buf, bpp, Pixel) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
162 do { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
163 switch (bpp) { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
164 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
165 Pixel = *((Uint16 *)(buf)); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
166 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
167 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
168 case 3: { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
169 Uint8 *B = (Uint8 *)(buf); \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
170 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
171 Pixel = B[0] + (B[1] << 8) + (B[2] << 16); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
172 } else { \
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 = (B[0] << 16) + (B[1] << 8) + B[2]; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
174 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
175 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
176 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
177 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
178 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
179 Pixel = *((Uint32 *)(buf)); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
180 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
181 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
182 default: \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
183 Pixel; /* stop gcc complaints */ \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
184 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
185 } \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
186 } while (0)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
187
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
188 #define DISEMBLE_RGB(buf, bpp, fmt, Pixel, r, g, b) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
189 do { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
190 switch (bpp) { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
191 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
192 Pixel = *((Uint16 *)(buf)); \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
193 RGB_FROM_PIXEL(Pixel, fmt, r, g, b); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
194 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
195 \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
196 case 3: { \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
197 if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
198 r = *((buf)+fmt->Rshift/8); \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
199 g = *((buf)+fmt->Gshift/8); \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
200 b = *((buf)+fmt->Bshift/8); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
201 } else { \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
202 r = *((buf)+2-fmt->Rshift/8); \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
203 g = *((buf)+2-fmt->Gshift/8); \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
204 b = *((buf)+2-fmt->Bshift/8); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
205 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
206 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
207 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
208 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
209 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
210 Pixel = *((Uint32 *)(buf)); \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
211 RGB_FROM_PIXEL(Pixel, fmt, r, g, b); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
212 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
213 \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
214 default: \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
215 Pixel; /* stop gcc complaints */ \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
216 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
217 } \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
218 } while (0)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
219
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
220 /* 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
221 #define PIXEL_FROM_RGB(Pixel, fmt, r, g, b) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
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>>fmt->Rloss)<<fmt->Rshift)| \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
224 ((g>>fmt->Gloss)<<fmt->Gshift)| \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
225 ((b>>fmt->Bloss)<<fmt->Bshift); \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
226 }
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
227 #define RGB565_FROM_RGB(Pixel, r, g, b) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
228 { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
229 Pixel = ((r>>3)<<11)|((g>>2)<<5)|(b>>3); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
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 #define RGB555_FROM_RGB(Pixel, r, g, b) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
232 { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
233 Pixel = ((r>>3)<<10)|((g>>3)<<5)|(b>>3); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
234 }
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
235 #define RGB888_FROM_RGB(Pixel, r, g, b) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
236 { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
237 Pixel = (r<<16)|(g<<8)|b; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
238 }
2899
a0c837a16e4c Added ARGB optimized case for Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents: 2898
diff changeset
239 #define ARGB8888_FROM_RGBA(Pixel, r, g, b, a) \
a0c837a16e4c Added ARGB optimized case for Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents: 2898
diff changeset
240 { \
a0c837a16e4c Added ARGB optimized case for Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents: 2898
diff changeset
241 Pixel = (a<<24)|(r<<16)|(g<<8)|b; \
a0c837a16e4c Added ARGB optimized case for Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents: 2898
diff changeset
242 }
3054
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
243 #define RGBA8888_FROM_RGBA(Pixel, r, g, b, a) \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
244 { \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
245 Pixel = (r<<24)|(g<<16)|(b<<8)|a; \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
246 }
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
247 #define ABGR8888_FROM_RGBA(Pixel, r, g, b, a) \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
248 { \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
249 Pixel = (a<<24)|(b<<16)|(g<<8)|r; \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
250 }
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
251 #define BGRA8888_FROM_RGBA(Pixel, r, g, b, a) \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
252 { \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
253 Pixel = (b<<24)|(g<<16)|(r<<8)|a; \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
254 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
255 #define ASSEMBLE_RGB(buf, bpp, fmt, r, g, b) \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
256 { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
257 switch (bpp) { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
258 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
259 Uint16 Pixel; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
260 \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
261 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
262 *((Uint16 *)(buf)) = Pixel; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
263 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
264 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
265 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
266 case 3: { \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
267 if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
268 *((buf)+fmt->Rshift/8) = r; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
269 *((buf)+fmt->Gshift/8) = g; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
270 *((buf)+fmt->Bshift/8) = b; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
271 } else { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
272 *((buf)+2-fmt->Rshift/8) = r; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
273 *((buf)+2-fmt->Gshift/8) = g; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
274 *((buf)+2-fmt->Bshift/8) = b; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
276 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
277 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
279 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
280 Uint32 Pixel; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
281 \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
282 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
283 *((Uint32 *)(buf)) = Pixel; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
284 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
285 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
286 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
287 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
288 #define ASSEMBLE_RGB_AMASK(buf, bpp, fmt, r, g, b, Amask) \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
289 { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
290 switch (bpp) { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
291 case 2: { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
292 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
293 Uint16 Pixel; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
294 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
295 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
296 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
297 *bufp = Pixel | (*bufp & Amask); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
298 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
299 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
300 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
301 case 3: { \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
302 if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
303 *((buf)+fmt->Rshift/8) = r; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
304 *((buf)+fmt->Gshift/8) = g; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
305 *((buf)+fmt->Bshift/8) = b; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
306 } else { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
307 *((buf)+2-fmt->Rshift/8) = r; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
308 *((buf)+2-fmt->Gshift/8) = g; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
309 *((buf)+2-fmt->Bshift/8) = b; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
310 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
311 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
312 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
313 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
314 case 4: { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
315 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
316 Uint32 Pixel; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
317 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
318 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
319 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
320 *bufp = Pixel | (*bufp & Amask); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
321 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
322 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
323 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
324 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
325
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
326 /* 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
327 #define RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
328 { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
329 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
330 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
331 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
332 a = ((Pixel&fmt->Amask)>>fmt->Ashift)<<fmt->Aloss; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
333 }
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
334 #define RGBA_FROM_8888(Pixel, fmt, r, g, b, a) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
335 { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
336 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
337 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
338 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
339 a = (Pixel&fmt->Amask)>>fmt->Ashift; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
340 }
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
341 #define RGBA_FROM_RGBA8888(Pixel, r, g, b, a) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
342 { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
343 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
344 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
345 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
346 a = (Pixel&0xFF); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
347 }
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
348 #define RGBA_FROM_ARGB8888(Pixel, r, g, b, a) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
349 { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
350 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
351 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
352 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
353 a = (Pixel>>24); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
354 }
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
355 #define RGBA_FROM_ABGR8888(Pixel, r, g, b, a) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
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 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
358 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
359 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
360 a = (Pixel>>24); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
361 }
3054
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
362 #define RGBA_FROM_BGRA8888(Pixel, r, g, b, a) \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
363 { \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
364 r = ((Pixel>>8)&0xFF); \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
365 g = ((Pixel>>16)&0xFF); \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
366 b = (Pixel>>24); \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
367 a = (Pixel&0xFF); \
8d93bfecb9dc Fixed alpha blending textures with the GDI renderer
Sam Lantinga <slouken@libsdl.org>
parents: 3035
diff changeset
368 }
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
369 #define DISEMBLE_RGBA(buf, bpp, fmt, Pixel, r, g, b, a) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
370 do { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
371 switch (bpp) { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
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 Pixel = *((Uint16 *)(buf)); \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
374 RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
375 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
376 \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
377 case 3: { \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
378 if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
379 r = *((buf)+fmt->Rshift/8); \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
380 g = *((buf)+fmt->Gshift/8); \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
381 b = *((buf)+fmt->Bshift/8); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
382 } else { \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
383 r = *((buf)+2-fmt->Rshift/8); \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
384 g = *((buf)+2-fmt->Gshift/8); \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
385 b = *((buf)+2-fmt->Bshift/8); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
386 } \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
387 a = 0xFF; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
388 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
389 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
390 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
391 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
392 Pixel = *((Uint32 *)(buf)); \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
393 RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
395 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
396 default: \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
397 Pixel; /* stop gcc complaints */ \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
398 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
399 } \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
400 } while (0)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402 /* 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
403 #define PIXEL_FROM_RGBA(Pixel, fmt, r, g, b, a) \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
404 { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
405 Pixel = ((r>>fmt->Rloss)<<fmt->Rshift)| \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
406 ((g>>fmt->Gloss)<<fmt->Gshift)| \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
407 ((b>>fmt->Bloss)<<fmt->Bshift)| \
535
917cc5c56176 Fixed alpha blending bug (thanks Glenn!)
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
408 ((a>>fmt->Aloss)<<fmt->Ashift); \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
409 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
410 #define ASSEMBLE_RGBA(buf, bpp, fmt, r, g, b, a) \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
411 { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
412 switch (bpp) { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
413 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
414 Uint16 Pixel; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
415 \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
416 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
417 *((Uint16 *)(buf)) = Pixel; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
418 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
419 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
420 \
2824
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
421 case 3: { \
4dba7aa7ea77 Added slow but complete blit fallback
Sam Lantinga <slouken@libsdl.org>
parents: 2267
diff changeset
422 if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
423 *((buf)+fmt->Rshift/8) = r; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
424 *((buf)+fmt->Gshift/8) = g; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
425 *((buf)+fmt->Bshift/8) = b; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
426 } else { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
427 *((buf)+2-fmt->Rshift/8) = r; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
428 *((buf)+2-fmt->Gshift/8) = g; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
429 *((buf)+2-fmt->Bshift/8) = b; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
430 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
431 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
432 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
433 \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
434 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
435 Uint32 Pixel; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
436 \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
437 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
438 *((Uint32 *)(buf)) = Pixel; \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
439 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
440 break; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
441 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
442 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
443
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
444 /* Blend the RGB values of two Pixels based on a source alpha value */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
445 #define ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB) \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
446 do { \
3631
76667e288846 Revert r5463: Alpha blend "correctness" patch.
Ryan C. Gordon <icculus@icculus.org>
parents: 3625
diff changeset
447 dR = ((((int)(sR-dR)*(int)A)/255)+dR); \
76667e288846 Revert r5463: Alpha blend "correctness" patch.
Ryan C. Gordon <icculus@icculus.org>
parents: 3625
diff changeset
448 dG = ((((int)(sG-dG)*(int)A)/255)+dG); \
76667e288846 Revert r5463: Alpha blend "correctness" patch.
Ryan C. Gordon <icculus@icculus.org>
parents: 3625
diff changeset
449 dB = ((((int)(sB-dB)*(int)A)/255)+dB); \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
450 } while(0)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
451
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
452
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
453 /* 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
454 #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
455 /* 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
456 #else
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
457 #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
458 #endif
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
459 #ifdef USE_DUFFS_LOOP
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
460
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
461 /* 8-times unrolled loop */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
462 #define DUFFS_LOOP8(pixel_copy_increment, width) \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
463 { int n = (width+7)/8; \
91
e85e03f195b4 From: "Markus F.X.J. Oberhumer"
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
464 switch (width & 7) { \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
465 case 0: do { pixel_copy_increment; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
466 case 7: pixel_copy_increment; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
467 case 6: pixel_copy_increment; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
468 case 5: pixel_copy_increment; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
469 case 4: pixel_copy_increment; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
470 case 3: pixel_copy_increment; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
471 case 2: pixel_copy_increment; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
472 case 1: pixel_copy_increment; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
473 } while ( --n > 0 ); \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
474 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
475 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
476
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
477 /* 4-times unrolled loop */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
478 #define DUFFS_LOOP4(pixel_copy_increment, width) \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
479 { int n = (width+3)/4; \
91
e85e03f195b4 From: "Markus F.X.J. Oberhumer"
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
480 switch (width & 3) { \
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
481 case 0: do { pixel_copy_increment; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
482 case 3: pixel_copy_increment; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
483 case 2: pixel_copy_increment; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
484 case 1: pixel_copy_increment; \
3035
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
485 } while (--n > 0); \
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 553
diff changeset
486 } \
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
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
489 /* Use the 8-times version of the loop by default */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
490 #define DUFFS_LOOP(pixel_copy_increment, width) \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
491 DUFFS_LOOP8(pixel_copy_increment, width)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
492
3035
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
493 /* Special version of Duff's device for even more optimization */
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
494 #define DUFFS_LOOP_124(pixel_copy_increment1, \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
495 pixel_copy_increment2, \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
496 pixel_copy_increment4, width) \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
497 { int n = width; \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
498 if (n & 1) { \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
499 pixel_copy_increment1; n -= 1; \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
500 } \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
501 if (n & 2) { \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
502 pixel_copy_increment2; n -= 2; \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
503 } \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
504 if (n) { \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
505 n = (n+7)/ 8; \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
506 switch (n & 4) { \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
507 case 0: do { pixel_copy_increment4; \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
508 case 4: pixel_copy_increment4; \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
509 } while (--n > 0); \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
510 } \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
511 } \
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 553
diff changeset
512 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 553
diff changeset
513
3035
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
514 #else
689
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 /* Don't use Duff's device to unroll loops */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
517 #define DUFFS_LOOP(pixel_copy_increment, width) \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
518 { int n; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
519 for ( n=width; n > 0; --n ) { \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
520 pixel_copy_increment; \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
521 } \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
522 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
523 #define DUFFS_LOOP8(pixel_copy_increment, width) \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
524 DUFFS_LOOP(pixel_copy_increment, width)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
525 #define DUFFS_LOOP4(pixel_copy_increment, width) \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
526 DUFFS_LOOP(pixel_copy_increment, width)
3035
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
527 #define DUFFS_LOOP_124(pixel_copy_increment1, \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
528 pixel_copy_increment2, \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
529 pixel_copy_increment4, width) \
ff602fdfdedc Removed Rafal Bursig's MMX RLE code, at his request.
Sam Lantinga <slouken@libsdl.org>
parents: 2899
diff changeset
530 DUFFS_LOOP(pixel_copy_increment1, width)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
531
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
532 #endif /* USE_DUFFS_LOOP */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
533
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
534 /* Prevent Visual C++ 6.0 from printing out stupid warnings */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
535 #if defined(_MSC_VER) && (_MSC_VER >= 600)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
536 #pragma warning(disable: 4550)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
537 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
538
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
539 #endif /* _SDL_blit_h */
2898
e40448bc7727 Share code between fill and line drawing
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
540
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
541 /* vi: set ts=4 sw=4 expandtab: */