sdl-ios-xcode: src/video/SDL

annotate src/video/SDL_blit.h @ 3466:a288892cd24c

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

author	Sam Lantinga <slouken@libsdl.org>
date	Sat, 21 Nov 2009 05:05:19 +0000
parents	dc2911c207e4
children	83910f4c373f

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
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2853 diff changeset	3 Copyright (C) 1997-2009 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 { \
3437 dc2911c207e4 Thank you automated tests (and bobbens!), fixed alpha blending for accuracy Sam Lantinga <slouken@libsdl.org> parents: 3363 diff changeset	447 dR = ((((int)(sR-dR)*(int)A)/255)+dR); \
dc2911c207e4 Thank you automated tests (and bobbens!), fixed alpha blending for accuracy Sam Lantinga <slouken@libsdl.org> parents: 3363 diff changeset	448 dG = ((((int)(sG-dG)*(int)A)/255)+dG); \
dc2911c207e4 Thank you automated tests (and bobbens!), fixed alpha blending for accuracy Sam Lantinga <slouken@libsdl.org> parents: 3363 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: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_blit.h @ 3466:a288892cd24c