SDL  2.0
SDL_blit.h
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
4 
5  This software is provided 'as-is', without any express or implied
6  warranty. In no event will the authors be held liable for any damages
7  arising from the use of this software.
8 
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12 
13  1. The origin of this software must not be misrepresented; you must not
14  claim that you wrote the original software. If you use this software
15  in a product, an acknowledgment in the product documentation would be
16  appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18  misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20 */
21 #include "../SDL_internal.h"
22 
23 #ifndef SDL_blit_h_
24 #define SDL_blit_h_
25 
26 #include "SDL_cpuinfo.h"
27 #include "SDL_endian.h"
28 #include "SDL_surface.h"
29 
30 /* Table to do pixel byte expansion */
31 extern Uint8* SDL_expand_byte[9];
32 
33 /* SDL blit copy flags */
34 #define SDL_COPY_MODULATE_COLOR 0x00000001
35 #define SDL_COPY_MODULATE_ALPHA 0x00000002
36 #define SDL_COPY_BLEND 0x00000010
37 #define SDL_COPY_ADD 0x00000020
38 #define SDL_COPY_MOD 0x00000040
39 #define SDL_COPY_MUL 0x00000080
40 #define SDL_COPY_COLORKEY 0x00000100
41 #define SDL_COPY_NEAREST 0x00000200
42 #define SDL_COPY_RLE_DESIRED 0x00001000
43 #define SDL_COPY_RLE_COLORKEY 0x00002000
44 #define SDL_COPY_RLE_ALPHAKEY 0x00004000
45 #define SDL_COPY_RLE_MASK (SDL_COPY_RLE_DESIRED|SDL_COPY_RLE_COLORKEY|SDL_COPY_RLE_ALPHAKEY)
46 
47 /* SDL blit CPU flags */
48 #define SDL_CPU_ANY 0x00000000
49 #define SDL_CPU_MMX 0x00000001
50 #define SDL_CPU_3DNOW 0x00000002
51 #define SDL_CPU_SSE 0x00000004
52 #define SDL_CPU_SSE2 0x00000008
53 #define SDL_CPU_ALTIVEC_PREFETCH 0x00000010
54 #define SDL_CPU_ALTIVEC_NOPREFETCH 0x00000020
55 
56 typedef struct
57 {
59  int src_w, src_h;
60  int src_pitch;
61  int src_skip;
63  int dst_w, dst_h;
64  int dst_pitch;
65  int dst_skip;
69  int flags;
71  Uint8 r, g, b, a;
72 } SDL_BlitInfo;
73 
74 typedef void (*SDL_BlitFunc) (SDL_BlitInfo *info);
75 
76 
77 typedef struct
78 {
81  int flags;
82  int cpu;
85 
86 /* Blit mapping definition */
87 typedef struct SDL_BlitMap
88 {
90  int identity;
92  void *data;
94 
95  /* the version count matches the destination; mismatch indicates
96  an invalid mapping */
99 } SDL_BlitMap;
100 
101 /* Functions found in SDL_blit.c */
103 
104 /* Functions found in SDL_blit_*.c */
109 
110 /*
111  * Useful macros for blitting routines
112  */
113 
114 #if defined(__GNUC__)
115 #define DECLARE_ALIGNED(t,v,a) t __attribute__((aligned(a))) v
116 #elif defined(_MSC_VER)
117 #define DECLARE_ALIGNED(t,v,a) __declspec(align(a)) t v
118 #else
119 #define DECLARE_ALIGNED(t,v,a) t v
120 #endif
121 
122 /* Load pixel of the specified format from a buffer and get its R-G-B values */
123 #define RGB_FROM_PIXEL(Pixel, fmt, r, g, b) \
124 { \
125  r = SDL_expand_byte[fmt->Rloss][((Pixel&fmt->Rmask)>>fmt->Rshift)]; \
126  g = SDL_expand_byte[fmt->Gloss][((Pixel&fmt->Gmask)>>fmt->Gshift)]; \
127  b = SDL_expand_byte[fmt->Bloss][((Pixel&fmt->Bmask)>>fmt->Bshift)]; \
128 }
129 #define RGB_FROM_RGB565(Pixel, r, g, b) \
130 { \
131  r = SDL_expand_byte[3][((Pixel&0xF800)>>11)]; \
132  g = SDL_expand_byte[2][((Pixel&0x07E0)>>5)]; \
133  b = SDL_expand_byte[3][(Pixel&0x001F)]; \
134 }
135 #define RGB_FROM_RGB555(Pixel, r, g, b) \
136 { \
137  r = SDL_expand_byte[3][((Pixel&0x7C00)>>10)]; \
138  g = SDL_expand_byte[3][((Pixel&0x03E0)>>5)]; \
139  b = SDL_expand_byte[3][(Pixel&0x001F)]; \
140 }
141 #define RGB_FROM_RGB888(Pixel, r, g, b) \
142 { \
143  r = ((Pixel&0xFF0000)>>16); \
144  g = ((Pixel&0xFF00)>>8); \
145  b = (Pixel&0xFF); \
146 }
147 #define RETRIEVE_RGB_PIXEL(buf, bpp, Pixel) \
148 do { \
149  switch (bpp) { \
150  case 1: \
151  Pixel = *((Uint8 *)(buf)); \
152  break; \
153  \
154  case 2: \
155  Pixel = *((Uint16 *)(buf)); \
156  break; \
157  \
158  case 3: { \
159  Uint8 *B = (Uint8 *)(buf); \
160  if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \
161  Pixel = B[0] + (B[1] << 8) + (B[2] << 16); \
162  } else { \
163  Pixel = (B[0] << 16) + (B[1] << 8) + B[2]; \
164  } \
165  } \
166  break; \
167  \
168  case 4: \
169  Pixel = *((Uint32 *)(buf)); \
170  break; \
171  \
172  default: \
173  Pixel = 0; /* stop gcc complaints */ \
174  break; \
175  } \
176 } while (0)
177 
178 #define DISEMBLE_RGB(buf, bpp, fmt, Pixel, r, g, b) \
179 do { \
180  switch (bpp) { \
181  case 1: \
182  Pixel = *((Uint8 *)(buf)); \
183  RGB_FROM_PIXEL(Pixel, fmt, r, g, b); \
184  break; \
185  \
186  case 2: \
187  Pixel = *((Uint16 *)(buf)); \
188  RGB_FROM_PIXEL(Pixel, fmt, r, g, b); \
189  break; \
190  \
191  case 3: { \
192  Pixel = 0; \
193  if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \
194  r = *((buf)+fmt->Rshift/8); \
195  g = *((buf)+fmt->Gshift/8); \
196  b = *((buf)+fmt->Bshift/8); \
197  } else { \
198  r = *((buf)+2-fmt->Rshift/8); \
199  g = *((buf)+2-fmt->Gshift/8); \
200  b = *((buf)+2-fmt->Bshift/8); \
201  } \
202  } \
203  break; \
204  \
205  case 4: \
206  Pixel = *((Uint32 *)(buf)); \
207  RGB_FROM_PIXEL(Pixel, fmt, r, g, b); \
208  break; \
209  \
210  default: \
211  /* stop gcc complaints */ \
212  Pixel = 0; \
213  r = g = b = 0; \
214  break; \
215  } \
216 } while (0)
217 
218 /* Assemble R-G-B values into a specified pixel format and store them */
219 #define PIXEL_FROM_RGB(Pixel, fmt, r, g, b) \
220 { \
221  Pixel = ((r>>fmt->Rloss)<<fmt->Rshift)| \
222  ((g>>fmt->Gloss)<<fmt->Gshift)| \
223  ((b>>fmt->Bloss)<<fmt->Bshift)| \
224  fmt->Amask; \
225 }
226 #define RGB565_FROM_RGB(Pixel, r, g, b) \
227 { \
228  Pixel = ((r>>3)<<11)|((g>>2)<<5)|(b>>3); \
229 }
230 #define RGB555_FROM_RGB(Pixel, r, g, b) \
231 { \
232  Pixel = ((r>>3)<<10)|((g>>3)<<5)|(b>>3); \
233 }
234 #define RGB888_FROM_RGB(Pixel, r, g, b) \
235 { \
236  Pixel = (r<<16)|(g<<8)|b; \
237 }
238 #define ARGB8888_FROM_RGBA(Pixel, r, g, b, a) \
239 { \
240  Pixel = (a<<24)|(r<<16)|(g<<8)|b; \
241 }
242 #define RGBA8888_FROM_RGBA(Pixel, r, g, b, a) \
243 { \
244  Pixel = (r<<24)|(g<<16)|(b<<8)|a; \
245 }
246 #define ABGR8888_FROM_RGBA(Pixel, r, g, b, a) \
247 { \
248  Pixel = (a<<24)|(b<<16)|(g<<8)|r; \
249 }
250 #define BGRA8888_FROM_RGBA(Pixel, r, g, b, a) \
251 { \
252  Pixel = (b<<24)|(g<<16)|(r<<8)|a; \
253 }
254 #define ARGB2101010_FROM_RGBA(Pixel, r, g, b, a) \
255 { \
256  r = r ? ((r << 2) | 0x3) : 0; \
257  g = g ? ((g << 2) | 0x3) : 0; \
258  b = b ? ((b << 2) | 0x3) : 0; \
259  a = (a * 3) / 255; \
260  Pixel = (a<<30)|(r<<20)|(g<<10)|b; \
261 }
262 #define ASSEMBLE_RGB(buf, bpp, fmt, r, g, b) \
263 { \
264  switch (bpp) { \
265  case 1: { \
266  Uint8 _Pixel; \
267  \
268  PIXEL_FROM_RGB(_Pixel, fmt, r, g, b); \
269  *((Uint8 *)(buf)) = _Pixel; \
270  } \
271  break; \
272  \
273  case 2: { \
274  Uint16 _Pixel; \
275  \
276  PIXEL_FROM_RGB(_Pixel, fmt, r, g, b); \
277  *((Uint16 *)(buf)) = _Pixel; \
278  } \
279  break; \
280  \
281  case 3: { \
282  if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \
283  *((buf)+fmt->Rshift/8) = r; \
284  *((buf)+fmt->Gshift/8) = g; \
285  *((buf)+fmt->Bshift/8) = b; \
286  } else { \
287  *((buf)+2-fmt->Rshift/8) = r; \
288  *((buf)+2-fmt->Gshift/8) = g; \
289  *((buf)+2-fmt->Bshift/8) = b; \
290  } \
291  } \
292  break; \
293  \
294  case 4: { \
295  Uint32 _Pixel; \
296  \
297  PIXEL_FROM_RGB(_Pixel, fmt, r, g, b); \
298  *((Uint32 *)(buf)) = _Pixel; \
299  } \
300  break; \
301  } \
302 }
303 
304 /* FIXME: Should we rescale alpha into 0..255 here? */
305 #define RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a) \
306 { \
307  r = SDL_expand_byte[fmt->Rloss][((Pixel&fmt->Rmask)>>fmt->Rshift)]; \
308  g = SDL_expand_byte[fmt->Gloss][((Pixel&fmt->Gmask)>>fmt->Gshift)]; \
309  b = SDL_expand_byte[fmt->Bloss][((Pixel&fmt->Bmask)>>fmt->Bshift)]; \
310  a = SDL_expand_byte[fmt->Aloss][((Pixel&fmt->Amask)>>fmt->Ashift)]; \
311 }
312 #define RGBA_FROM_8888(Pixel, fmt, r, g, b, a) \
313 { \
314  r = (Pixel&fmt->Rmask)>>fmt->Rshift; \
315  g = (Pixel&fmt->Gmask)>>fmt->Gshift; \
316  b = (Pixel&fmt->Bmask)>>fmt->Bshift; \
317  a = (Pixel&fmt->Amask)>>fmt->Ashift; \
318 }
319 #define RGBA_FROM_RGBA8888(Pixel, r, g, b, a) \
320 { \
321  r = (Pixel>>24); \
322  g = ((Pixel>>16)&0xFF); \
323  b = ((Pixel>>8)&0xFF); \
324  a = (Pixel&0xFF); \
325 }
326 #define RGBA_FROM_ARGB8888(Pixel, r, g, b, a) \
327 { \
328  r = ((Pixel>>16)&0xFF); \
329  g = ((Pixel>>8)&0xFF); \
330  b = (Pixel&0xFF); \
331  a = (Pixel>>24); \
332 }
333 #define RGBA_FROM_ABGR8888(Pixel, r, g, b, a) \
334 { \
335  r = (Pixel&0xFF); \
336  g = ((Pixel>>8)&0xFF); \
337  b = ((Pixel>>16)&0xFF); \
338  a = (Pixel>>24); \
339 }
340 #define RGBA_FROM_BGRA8888(Pixel, r, g, b, a) \
341 { \
342  r = ((Pixel>>8)&0xFF); \
343  g = ((Pixel>>16)&0xFF); \
344  b = (Pixel>>24); \
345  a = (Pixel&0xFF); \
346 }
347 #define RGBA_FROM_ARGB2101010(Pixel, r, g, b, a) \
348 { \
349  r = ((Pixel>>22)&0xFF); \
350  g = ((Pixel>>12)&0xFF); \
351  b = ((Pixel>>2)&0xFF); \
352  a = SDL_expand_byte[6][(Pixel>>30)]; \
353 }
354 #define DISEMBLE_RGBA(buf, bpp, fmt, Pixel, r, g, b, a) \
355 do { \
356  switch (bpp) { \
357  case 1: \
358  Pixel = *((Uint8 *)(buf)); \
359  RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a); \
360  break; \
361  \
362  case 2: \
363  Pixel = *((Uint16 *)(buf)); \
364  RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a); \
365  break; \
366  \
367  case 3: { \
368  Pixel = 0; \
369  if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \
370  r = *((buf)+fmt->Rshift/8); \
371  g = *((buf)+fmt->Gshift/8); \
372  b = *((buf)+fmt->Bshift/8); \
373  } else { \
374  r = *((buf)+2-fmt->Rshift/8); \
375  g = *((buf)+2-fmt->Gshift/8); \
376  b = *((buf)+2-fmt->Bshift/8); \
377  } \
378  a = 0xFF; \
379  } \
380  break; \
381  \
382  case 4: \
383  Pixel = *((Uint32 *)(buf)); \
384  RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a); \
385  break; \
386  \
387  default: \
388  /* stop gcc complaints */ \
389  Pixel = 0; \
390  r = g = b = a = 0; \
391  break; \
392  } \
393 } while (0)
394 
395 /* FIXME: this isn't correct, especially for Alpha (maximum != 255) */
396 #define PIXEL_FROM_RGBA(Pixel, fmt, r, g, b, a) \
397 { \
398  Pixel = ((r>>fmt->Rloss)<<fmt->Rshift)| \
399  ((g>>fmt->Gloss)<<fmt->Gshift)| \
400  ((b>>fmt->Bloss)<<fmt->Bshift)| \
401  ((a>>fmt->Aloss)<<fmt->Ashift); \
402 }
403 #define ASSEMBLE_RGBA(buf, bpp, fmt, r, g, b, a) \
404 { \
405  switch (bpp) { \
406  case 1: { \
407  Uint8 _pixel; \
408  \
409  PIXEL_FROM_RGBA(_pixel, fmt, r, g, b, a); \
410  *((Uint8 *)(buf)) = _pixel; \
411  } \
412  break; \
413  \
414  case 2: { \
415  Uint16 _pixel; \
416  \
417  PIXEL_FROM_RGBA(_pixel, fmt, r, g, b, a); \
418  *((Uint16 *)(buf)) = _pixel; \
419  } \
420  break; \
421  \
422  case 3: { \
423  if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \
424  *((buf)+fmt->Rshift/8) = r; \
425  *((buf)+fmt->Gshift/8) = g; \
426  *((buf)+fmt->Bshift/8) = b; \
427  } else { \
428  *((buf)+2-fmt->Rshift/8) = r; \
429  *((buf)+2-fmt->Gshift/8) = g; \
430  *((buf)+2-fmt->Bshift/8) = b; \
431  } \
432  } \
433  break; \
434  \
435  case 4: { \
436  Uint32 _pixel; \
437  \
438  PIXEL_FROM_RGBA(_pixel, fmt, r, g, b, a); \
439  *((Uint32 *)(buf)) = _pixel; \
440  } \
441  break; \
442  } \
443 }
444 
445 /* Blend the RGB values of two pixels with an alpha value */
446 #define ALPHA_BLEND_RGB(sR, sG, sB, A, dR, dG, dB) \
447 do { \
448  dR = (Uint8)((((int)(sR-dR)*(int)A)/255)+dR); \
449  dG = (Uint8)((((int)(sG-dG)*(int)A)/255)+dG); \
450  dB = (Uint8)((((int)(sB-dB)*(int)A)/255)+dB); \
451 } while(0)
452 
453 
454 /* Blend the RGBA values of two pixels */
455 #define ALPHA_BLEND_RGBA(sR, sG, sB, sA, dR, dG, dB, dA) \
456 do { \
457  dR = (Uint8)((((int)(sR-dR)*(int)sA)/255)+dR); \
458  dG = (Uint8)((((int)(sG-dG)*(int)sA)/255)+dG); \
459  dB = (Uint8)((((int)(sB-dB)*(int)sA)/255)+dB); \
460  dA = (Uint8)((int)sA+dA-((int)sA*dA)/255); \
461 } while(0)
462 
463 
464 /* This is a very useful loop for optimizing blitters */
465 #if defined(_MSC_VER) && (_MSC_VER == 1300)
466 /* There's a bug in the Visual C++ 7 optimizer when compiling this code */
467 #else
468 #define USE_DUFFS_LOOP
469 #endif
470 #ifdef USE_DUFFS_LOOP
471 
472 /* 8-times unrolled loop */
473 #define DUFFS_LOOP8(pixel_copy_increment, width) \
474 { int n = (width+7)/8; \
475  switch (width & 7) { \
476  case 0: do { pixel_copy_increment; /* fallthrough */ \
477  case 7: pixel_copy_increment; /* fallthrough */ \
478  case 6: pixel_copy_increment; /* fallthrough */ \
479  case 5: pixel_copy_increment; /* fallthrough */ \
480  case 4: pixel_copy_increment; /* fallthrough */ \
481  case 3: pixel_copy_increment; /* fallthrough */ \
482  case 2: pixel_copy_increment; /* fallthrough */ \
483  case 1: pixel_copy_increment; /* fallthrough */ \
484  } while ( --n > 0 ); \
485  } \
486 }
487 
488 /* 4-times unrolled loop */
489 #define DUFFS_LOOP4(pixel_copy_increment, width) \
490 { int n = (width+3)/4; \
491  switch (width & 3) { \
492  case 0: do { pixel_copy_increment; /* fallthrough */ \
493  case 3: pixel_copy_increment; /* fallthrough */ \
494  case 2: pixel_copy_increment; /* fallthrough */ \
495  case 1: pixel_copy_increment; /* fallthrough */ \
496  } while (--n > 0); \
497  } \
498 }
499 
500 /* Use the 8-times version of the loop by default */
501 #define DUFFS_LOOP(pixel_copy_increment, width) \
502  DUFFS_LOOP8(pixel_copy_increment, width)
503 
504 /* Special version of Duff's device for even more optimization */
505 #define DUFFS_LOOP_124(pixel_copy_increment1, \
506  pixel_copy_increment2, \
507  pixel_copy_increment4, width) \
508 { int n = width; \
509  if (n & 1) { \
510  pixel_copy_increment1; n -= 1; \
511  } \
512  if (n & 2) { \
513  pixel_copy_increment2; n -= 2; \
514  } \
515  if (n & 4) { \
516  pixel_copy_increment4; n -= 4; \
517  } \
518  if (n) { \
519  n /= 8; \
520  do { \
521  pixel_copy_increment4; \
522  pixel_copy_increment4; \
523  } while (--n > 0); \
524  } \
525 }
526 
527 #else
528 
529 /* Don't use Duff's device to unroll loops */
530 #define DUFFS_LOOP(pixel_copy_increment, width) \
531 { int n; \
532  for ( n=width; n > 0; --n ) { \
533  pixel_copy_increment; \
534  } \
535 }
536 #define DUFFS_LOOP8(pixel_copy_increment, width) \
537  DUFFS_LOOP(pixel_copy_increment, width)
538 #define DUFFS_LOOP4(pixel_copy_increment, width) \
539  DUFFS_LOOP(pixel_copy_increment, width)
540 #define DUFFS_LOOP_124(pixel_copy_increment1, \
541  pixel_copy_increment2, \
542  pixel_copy_increment4, width) \
543  DUFFS_LOOP(pixel_copy_increment1, width)
544 
545 #endif /* USE_DUFFS_LOOP */
546 
547 /* Prevent Visual C++ 6.0 from printing out stupid warnings */
548 #if defined(_MSC_VER) && (_MSC_VER >= 600)
549 #pragma warning(disable: 4550)
550 #endif
551 
552 #endif /* SDL_blit_h_ */
553 
554 /* vi: set ts=4 sw=4 expandtab: */
SDL_BlitInfo::src
Uint8 * src
Definition: SDL_blit.h:58
SDL_BlitInfo::src_skip
int src_skip
Definition: SDL_blit.h:61
Uint32
uint32_t Uint32
Definition: SDL_stdinc.h:203
SDL_BlitInfo::src_pitch
int src_pitch
Definition: SDL_blit.h:60
SDL_Surface
A collection of pixels used in software blitting.
Definition: SDL_surface.h:70
SDL_BlitMap::blit
SDL_blit blit
Definition: SDL_blit.h:91
SDL_BlitMap
Definition: SDL_blit.h:87
surface
EGLSurface surface
Definition: eglext.h:248
b
GLboolean GLboolean GLboolean b
Definition: SDL_opengl_glext.h:1112
g
GLboolean GLboolean g
Definition: SDL_opengl_glext.h:1112
SDL_BlitInfo::dst_w
int dst_w
Definition: SDL_blit.h:63
SDL_BlitInfo
Definition: SDL_blit.h:56
SDL_surface.h
SDL_endian.h
SDL_BlitMap::info
SDL_BlitInfo info
Definition: SDL_blit.h:93
a
GLboolean GLboolean GLboolean GLboolean a
Definition: SDL_opengl_glext.h:1112
SDL_blit
int(* SDL_blit)(struct SDL_Surface *src, SDL_Rect *srcrect, struct SDL_Surface *dst, SDL_Rect *dstrect)
The type of function used for surface blitting functions.
Definition: SDL_surface.h:98
SDL_BlitFuncEntry::flags
int flags
Definition: SDL_blit.h:81
SDL_BlitInfo::src_w
int src_w
Definition: SDL_blit.h:59
SDL_BlitInfo::dst
Uint8 * dst
Definition: SDL_blit.h:62
SDL_BlitFuncEntry::src_format
Uint32 src_format
Definition: SDL_blit.h:79
SDL_BlitInfo::src_fmt
SDL_PixelFormat * src_fmt
Definition: SDL_blit.h:66
SDL_cpuinfo.h
SDL_BlitInfo::dst_skip
int dst_skip
Definition: SDL_blit.h:65
SDL_BlitInfo::table
Uint8 * table
Definition: SDL_blit.h:68
SDL_CalculateBlitA
SDL_BlitFunc SDL_CalculateBlitA(SDL_Surface *surface)
Definition: SDL_blit_A.c:1335
SDL_BlitFuncEntry::func
SDL_BlitFunc func
Definition: SDL_blit.h:83
SDL_PixelFormat
Definition: SDL_pixels.h:318
SDL_BlitInfo::dst_fmt
SDL_PixelFormat * dst_fmt
Definition: SDL_blit.h:67
SDL_BlitMap::data
void * data
Definition: SDL_blit.h:92
SDL_CalculateBlit
int SDL_CalculateBlit(SDL_Surface *surface)
Definition: SDL_blit.c:196
SDL_expand_byte
Uint8 * SDL_expand_byte[9]
Definition: SDL_pixels.c:71
SDL_CalculateBlitN
SDL_BlitFunc SDL_CalculateBlitN(SDL_Surface *surface)
Definition: SDL_blit_N.c:3360
SDL_BlitMap::identity
int identity
Definition: SDL_blit.h:90
SDL_CalculateBlit0
SDL_BlitFunc SDL_CalculateBlit0(SDL_Surface *surface)
Definition: SDL_blit_0.c:456
SDL_BlitFuncEntry
Definition: SDL_blit.h:77
SDL_BlitInfo::r
Uint8 r
Definition: SDL_blit.h:71
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Definition: SDL_blit.h:70
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Definition: SDL_blit.h:64
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Definition: SDL_blit.h:97
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Definition: SDL_blit_1.c:524
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Definition: SDL_blit.h:82
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Definition: SDL_blit.h:89
void
const SDL_PRINTF_FORMAT_STRING char int const SDL_PRINTF_FORMAT_STRING char int const SDL_PRINTF_FORMAT_STRING char int const SDL_PRINTF_FORMAT_STRING char const char const SDL_SCANF_FORMAT_STRING char return SDL_ThreadFunction const char void return Uint32 return Uint32 void
Definition: SDL_dynapi_procs.h:89
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Definition: SDL_blit.h:98
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Definition: SDL_blit.h:74
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Definition: SDL_blit.h:80
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Definition: SDL_stdinc.h:179