diff options
Diffstat (limited to '3rdparty/SDL2/src/video/SDL_blit.h')
-rw-r--r-- | 3rdparty/SDL2/src/video/SDL_blit.h | 552 |
1 files changed, 0 insertions, 552 deletions
diff --git a/3rdparty/SDL2/src/video/SDL_blit.h b/3rdparty/SDL2/src/video/SDL_blit.h deleted file mode 100644 index e30f8afecb3..00000000000 --- a/3rdparty/SDL2/src/video/SDL_blit.h +++ /dev/null @@ -1,552 +0,0 @@ -/* - Simple DirectMedia Layer - Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org> - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. -*/ -#include "../SDL_internal.h" - -#ifndef _SDL_blit_h -#define _SDL_blit_h - -#include "SDL_cpuinfo.h" -#include "SDL_endian.h" -#include "SDL_surface.h" - -/* Table to do pixel byte expansion */ -extern Uint8* SDL_expand_byte[9]; - -/* SDL blit copy flags */ -#define SDL_COPY_MODULATE_COLOR 0x00000001 -#define SDL_COPY_MODULATE_ALPHA 0x00000002 -#define SDL_COPY_BLEND 0x00000010 -#define SDL_COPY_ADD 0x00000020 -#define SDL_COPY_MOD 0x00000040 -#define SDL_COPY_COLORKEY 0x00000100 -#define SDL_COPY_NEAREST 0x00000200 -#define SDL_COPY_RLE_DESIRED 0x00001000 -#define SDL_COPY_RLE_COLORKEY 0x00002000 -#define SDL_COPY_RLE_ALPHAKEY 0x00004000 -#define SDL_COPY_RLE_MASK (SDL_COPY_RLE_DESIRED|SDL_COPY_RLE_COLORKEY|SDL_COPY_RLE_ALPHAKEY) - -/* SDL blit CPU flags */ -#define SDL_CPU_ANY 0x00000000 -#define SDL_CPU_MMX 0x00000001 -#define SDL_CPU_3DNOW 0x00000002 -#define SDL_CPU_SSE 0x00000004 -#define SDL_CPU_SSE2 0x00000008 -#define SDL_CPU_ALTIVEC_PREFETCH 0x00000010 -#define SDL_CPU_ALTIVEC_NOPREFETCH 0x00000020 - -typedef struct -{ - Uint8 *src; - int src_w, src_h; - int src_pitch; - int src_skip; - Uint8 *dst; - int dst_w, dst_h; - int dst_pitch; - int dst_skip; - SDL_PixelFormat *src_fmt; - SDL_PixelFormat *dst_fmt; - Uint8 *table; - int flags; - Uint32 colorkey; - Uint8 r, g, b, a; -} SDL_BlitInfo; - -typedef void (SDLCALL * SDL_BlitFunc) (SDL_BlitInfo * info); - -typedef struct -{ - Uint32 src_format; - Uint32 dst_format; - int flags; - int cpu; - SDL_BlitFunc func; -} SDL_BlitFuncEntry; - -/* Blit mapping definition */ -typedef struct SDL_BlitMap -{ - SDL_Surface *dst; - int identity; - SDL_blit blit; - void *data; - SDL_BlitInfo info; - - /* the version count matches the destination; mismatch indicates - an invalid mapping */ - Uint32 dst_palette_version; - Uint32 src_palette_version; -} SDL_BlitMap; - -/* Functions found in SDL_blit.c */ -extern int SDL_CalculateBlit(SDL_Surface * surface); - -/* Functions found in SDL_blit_*.c */ -extern SDL_BlitFunc SDL_CalculateBlit0(SDL_Surface * surface); -extern SDL_BlitFunc SDL_CalculateBlit1(SDL_Surface * surface); -extern SDL_BlitFunc SDL_CalculateBlitN(SDL_Surface * surface); -extern SDL_BlitFunc SDL_CalculateBlitA(SDL_Surface * surface); - -/* - * Useful macros for blitting routines - */ - -#if defined(__GNUC__) -#define DECLARE_ALIGNED(t,v,a) t __attribute__((aligned(a))) v -#elif defined(_MSC_VER) -#define DECLARE_ALIGNED(t,v,a) __declspec(align(a)) t v -#else -#define DECLARE_ALIGNED(t,v,a) t v -#endif - -/* Load pixel of the specified format from a buffer and get its R-G-B values */ -#define RGB_FROM_PIXEL(Pixel, fmt, r, g, b) \ -{ \ - r = SDL_expand_byte[fmt->Rloss][((Pixel&fmt->Rmask)>>fmt->Rshift)]; \ - g = SDL_expand_byte[fmt->Gloss][((Pixel&fmt->Gmask)>>fmt->Gshift)]; \ - b = SDL_expand_byte[fmt->Bloss][((Pixel&fmt->Bmask)>>fmt->Bshift)]; \ -} -#define RGB_FROM_RGB565(Pixel, r, g, b) \ - { \ - r = SDL_expand_byte[3][((Pixel&0xF800)>>11)]; \ - g = SDL_expand_byte[2][((Pixel&0x07E0)>>5)]; \ - b = SDL_expand_byte[3][(Pixel&0x001F)]; \ -} -#define RGB_FROM_RGB555(Pixel, r, g, b) \ -{ \ - r = SDL_expand_byte[3][((Pixel&0x7C00)>>10)]; \ - g = SDL_expand_byte[3][((Pixel&0x03E0)>>5)]; \ - b = SDL_expand_byte[3][(Pixel&0x001F)]; \ -} -#define RGB_FROM_RGB888(Pixel, r, g, b) \ -{ \ - r = ((Pixel&0xFF0000)>>16); \ - g = ((Pixel&0xFF00)>>8); \ - b = (Pixel&0xFF); \ -} -#define RETRIEVE_RGB_PIXEL(buf, bpp, Pixel) \ -do { \ - switch (bpp) { \ - case 1: \ - Pixel = *((Uint8 *)(buf)); \ - break; \ - \ - case 2: \ - Pixel = *((Uint16 *)(buf)); \ - break; \ - \ - case 3: { \ - Uint8 *B = (Uint8 *)(buf); \ - if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \ - Pixel = B[0] + (B[1] << 8) + (B[2] << 16); \ - } else { \ - Pixel = (B[0] << 16) + (B[1] << 8) + B[2]; \ - } \ - } \ - break; \ - \ - case 4: \ - Pixel = *((Uint32 *)(buf)); \ - break; \ - \ - default: \ - Pixel = 0; /* stop gcc complaints */ \ - break; \ - } \ -} while (0) - -#define DISEMBLE_RGB(buf, bpp, fmt, Pixel, r, g, b) \ -do { \ - switch (bpp) { \ - case 1: \ - Pixel = *((Uint8 *)(buf)); \ - RGB_FROM_PIXEL(Pixel, fmt, r, g, b); \ - break; \ - \ - case 2: \ - Pixel = *((Uint16 *)(buf)); \ - RGB_FROM_PIXEL(Pixel, fmt, r, g, b); \ - break; \ - \ - case 3: { \ - Pixel = 0; \ - if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \ - r = *((buf)+fmt->Rshift/8); \ - g = *((buf)+fmt->Gshift/8); \ - b = *((buf)+fmt->Bshift/8); \ - } else { \ - r = *((buf)+2-fmt->Rshift/8); \ - g = *((buf)+2-fmt->Gshift/8); \ - b = *((buf)+2-fmt->Bshift/8); \ - } \ - } \ - break; \ - \ - case 4: \ - Pixel = *((Uint32 *)(buf)); \ - RGB_FROM_PIXEL(Pixel, fmt, r, g, b); \ - break; \ - \ - default: \ - /* stop gcc complaints */ \ - Pixel = 0; \ - r = g = b = 0; \ - break; \ - } \ -} while (0) - -/* Assemble R-G-B values into a specified pixel format and store them */ -#define PIXEL_FROM_RGB(Pixel, fmt, r, g, b) \ -{ \ - Pixel = ((r>>fmt->Rloss)<<fmt->Rshift)| \ - ((g>>fmt->Gloss)<<fmt->Gshift)| \ - ((b>>fmt->Bloss)<<fmt->Bshift)| \ - fmt->Amask; \ -} -#define RGB565_FROM_RGB(Pixel, r, g, b) \ -{ \ - Pixel = ((r>>3)<<11)|((g>>2)<<5)|(b>>3); \ -} -#define RGB555_FROM_RGB(Pixel, r, g, b) \ -{ \ - Pixel = ((r>>3)<<10)|((g>>3)<<5)|(b>>3); \ -} -#define RGB888_FROM_RGB(Pixel, r, g, b) \ -{ \ - Pixel = (r<<16)|(g<<8)|b; \ -} -#define ARGB8888_FROM_RGBA(Pixel, r, g, b, a) \ -{ \ - Pixel = (a<<24)|(r<<16)|(g<<8)|b; \ -} -#define RGBA8888_FROM_RGBA(Pixel, r, g, b, a) \ -{ \ - Pixel = (r<<24)|(g<<16)|(b<<8)|a; \ -} -#define ABGR8888_FROM_RGBA(Pixel, r, g, b, a) \ -{ \ - Pixel = (a<<24)|(b<<16)|(g<<8)|r; \ -} -#define BGRA8888_FROM_RGBA(Pixel, r, g, b, a) \ -{ \ - Pixel = (b<<24)|(g<<16)|(r<<8)|a; \ -} -#define ARGB2101010_FROM_RGBA(Pixel, r, g, b, a) \ -{ \ - r = r ? ((r << 2) | 0x3) : 0; \ - g = g ? ((g << 2) | 0x3) : 0; \ - b = b ? ((b << 2) | 0x3) : 0; \ - a = (a * 3) / 255; \ - Pixel = (a<<30)|(r<<20)|(g<<10)|b; \ -} -#define ASSEMBLE_RGB(buf, bpp, fmt, r, g, b) \ -{ \ - switch (bpp) { \ - case 1: { \ - Uint8 Pixel; \ - \ - PIXEL_FROM_RGB(Pixel, fmt, r, g, b); \ - *((Uint8 *)(buf)) = Pixel; \ - } \ - break; \ - \ - case 2: { \ - Uint16 Pixel; \ - \ - PIXEL_FROM_RGB(Pixel, fmt, r, g, b); \ - *((Uint16 *)(buf)) = Pixel; \ - } \ - break; \ - \ - case 3: { \ - if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \ - *((buf)+fmt->Rshift/8) = r; \ - *((buf)+fmt->Gshift/8) = g; \ - *((buf)+fmt->Bshift/8) = b; \ - } else { \ - *((buf)+2-fmt->Rshift/8) = r; \ - *((buf)+2-fmt->Gshift/8) = g; \ - *((buf)+2-fmt->Bshift/8) = b; \ - } \ - } \ - break; \ - \ - case 4: { \ - Uint32 Pixel; \ - \ - PIXEL_FROM_RGB(Pixel, fmt, r, g, b); \ - *((Uint32 *)(buf)) = Pixel; \ - } \ - break; \ - } \ -} - -/* FIXME: Should we rescale alpha into 0..255 here? */ -#define RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a) \ -{ \ - r = SDL_expand_byte[fmt->Rloss][((Pixel&fmt->Rmask)>>fmt->Rshift)]; \ - g = SDL_expand_byte[fmt->Gloss][((Pixel&fmt->Gmask)>>fmt->Gshift)]; \ - b = SDL_expand_byte[fmt->Bloss][((Pixel&fmt->Bmask)>>fmt->Bshift)]; \ - a = SDL_expand_byte[fmt->Aloss][((Pixel&fmt->Amask)>>fmt->Ashift)]; \ -} -#define RGBA_FROM_8888(Pixel, fmt, r, g, b, a) \ -{ \ - r = (Pixel&fmt->Rmask)>>fmt->Rshift; \ - g = (Pixel&fmt->Gmask)>>fmt->Gshift; \ - b = (Pixel&fmt->Bmask)>>fmt->Bshift; \ - a = (Pixel&fmt->Amask)>>fmt->Ashift; \ -} -#define RGBA_FROM_RGBA8888(Pixel, r, g, b, a) \ -{ \ - r = (Pixel>>24); \ - g = ((Pixel>>16)&0xFF); \ - b = ((Pixel>>8)&0xFF); \ - a = (Pixel&0xFF); \ -} -#define RGBA_FROM_ARGB8888(Pixel, r, g, b, a) \ -{ \ - r = ((Pixel>>16)&0xFF); \ - g = ((Pixel>>8)&0xFF); \ - b = (Pixel&0xFF); \ - a = (Pixel>>24); \ -} -#define RGBA_FROM_ABGR8888(Pixel, r, g, b, a) \ -{ \ - r = (Pixel&0xFF); \ - g = ((Pixel>>8)&0xFF); \ - b = ((Pixel>>16)&0xFF); \ - a = (Pixel>>24); \ -} -#define RGBA_FROM_BGRA8888(Pixel, r, g, b, a) \ -{ \ - r = ((Pixel>>8)&0xFF); \ - g = ((Pixel>>16)&0xFF); \ - b = (Pixel>>24); \ - a = (Pixel&0xFF); \ -} -#define RGBA_FROM_ARGB2101010(Pixel, r, g, b, a) \ -{ \ - r = ((Pixel>>22)&0xFF); \ - g = ((Pixel>>12)&0xFF); \ - b = ((Pixel>>2)&0xFF); \ - a = SDL_expand_byte[6][(Pixel>>30)]; \ -} -#define DISEMBLE_RGBA(buf, bpp, fmt, Pixel, r, g, b, a) \ -do { \ - switch (bpp) { \ - case 1: \ - Pixel = *((Uint8 *)(buf)); \ - RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a); \ - break; \ - \ - case 2: \ - Pixel = *((Uint16 *)(buf)); \ - RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a); \ - break; \ - \ - case 3: { \ - Pixel = 0; \ - if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \ - r = *((buf)+fmt->Rshift/8); \ - g = *((buf)+fmt->Gshift/8); \ - b = *((buf)+fmt->Bshift/8); \ - } else { \ - r = *((buf)+2-fmt->Rshift/8); \ - g = *((buf)+2-fmt->Gshift/8); \ - b = *((buf)+2-fmt->Bshift/8); \ - } \ - a = 0xFF; \ - } \ - break; \ - \ - case 4: \ - Pixel = *((Uint32 *)(buf)); \ - RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a); \ - break; \ - \ - default: \ - /* stop gcc complaints */ \ - Pixel = 0; \ - r = g = b = a = 0; \ - break; \ - } \ -} while (0) - -/* FIXME: this isn't correct, especially for Alpha (maximum != 255) */ -#define PIXEL_FROM_RGBA(Pixel, fmt, r, g, b, a) \ -{ \ - Pixel = ((r>>fmt->Rloss)<<fmt->Rshift)| \ - ((g>>fmt->Gloss)<<fmt->Gshift)| \ - ((b>>fmt->Bloss)<<fmt->Bshift)| \ - ((a>>fmt->Aloss)<<fmt->Ashift); \ -} -#define ASSEMBLE_RGBA(buf, bpp, fmt, r, g, b, a) \ -{ \ - switch (bpp) { \ - case 1: { \ - Uint8 _pixel; \ - \ - PIXEL_FROM_RGBA(_pixel, fmt, r, g, b, a); \ - *((Uint8 *)(buf)) = _pixel; \ - } \ - break; \ - \ - case 2: { \ - Uint16 _pixel; \ - \ - PIXEL_FROM_RGBA(_pixel, fmt, r, g, b, a); \ - *((Uint16 *)(buf)) = _pixel; \ - } \ - break; \ - \ - case 3: { \ - if (SDL_BYTEORDER == SDL_LIL_ENDIAN) { \ - *((buf)+fmt->Rshift/8) = r; \ - *((buf)+fmt->Gshift/8) = g; \ - *((buf)+fmt->Bshift/8) = b; \ - } else { \ - *((buf)+2-fmt->Rshift/8) = r; \ - *((buf)+2-fmt->Gshift/8) = g; \ - *((buf)+2-fmt->Bshift/8) = b; \ - } \ - } \ - break; \ - \ - case 4: { \ - Uint32 _pixel; \ - \ - PIXEL_FROM_RGBA(_pixel, fmt, r, g, b, a); \ - *((Uint32 *)(buf)) = _pixel; \ - } \ - break; \ - } \ -} - -/* Blend the RGB values of two pixels with an alpha value */ -#define ALPHA_BLEND_RGB(sR, sG, sB, A, dR, dG, dB) \ -do { \ - dR = ((((unsigned)(sR-dR)*(unsigned)A)/255)+dR); \ - dG = ((((unsigned)(sG-dG)*(unsigned)A)/255)+dG); \ - dB = ((((unsigned)(sB-dB)*(unsigned)A)/255)+dB); \ -} while(0) - - -/* Blend the RGBA values of two pixels */ -#define ALPHA_BLEND_RGBA(sR, sG, sB, sA, dR, dG, dB, dA) \ -do { \ - dR = ((((unsigned)(sR-dR)*(unsigned)sA)/255)+dR); \ - dG = ((((unsigned)(sG-dG)*(unsigned)sA)/255)+dG); \ - dB = ((((unsigned)(sB-dB)*(unsigned)sA)/255)+dB); \ - dA = ((unsigned)sA+(unsigned)dA-((unsigned)sA*dA)/255); \ -} while(0) - - -/* This is a very useful loop for optimizing blitters */ -#if defined(_MSC_VER) && (_MSC_VER == 1300) -/* There's a bug in the Visual C++ 7 optimizer when compiling this code */ -#else -#define USE_DUFFS_LOOP -#endif -#ifdef USE_DUFFS_LOOP - -/* 8-times unrolled loop */ -#define DUFFS_LOOP8(pixel_copy_increment, width) \ -{ int n = (width+7)/8; \ - switch (width & 7) { \ - case 0: do { pixel_copy_increment; \ - case 7: pixel_copy_increment; \ - case 6: pixel_copy_increment; \ - case 5: pixel_copy_increment; \ - case 4: pixel_copy_increment; \ - case 3: pixel_copy_increment; \ - case 2: pixel_copy_increment; \ - case 1: pixel_copy_increment; \ - } while ( --n > 0 ); \ - } \ -} - -/* 4-times unrolled loop */ -#define DUFFS_LOOP4(pixel_copy_increment, width) \ -{ int n = (width+3)/4; \ - switch (width & 3) { \ - case 0: do { pixel_copy_increment; \ - case 3: pixel_copy_increment; \ - case 2: pixel_copy_increment; \ - case 1: pixel_copy_increment; \ - } while (--n > 0); \ - } \ -} - -/* Use the 8-times version of the loop by default */ -#define DUFFS_LOOP(pixel_copy_increment, width) \ - DUFFS_LOOP8(pixel_copy_increment, width) - -/* Special version of Duff's device for even more optimization */ -#define DUFFS_LOOP_124(pixel_copy_increment1, \ - pixel_copy_increment2, \ - pixel_copy_increment4, width) \ -{ int n = width; \ - if (n & 1) { \ - pixel_copy_increment1; n -= 1; \ - } \ - if (n & 2) { \ - pixel_copy_increment2; n -= 2; \ - } \ - if (n & 4) { \ - pixel_copy_increment4; n -= 4; \ - } \ - if (n) { \ - n /= 8; \ - do { \ - pixel_copy_increment4; \ - pixel_copy_increment4; \ - } while (--n > 0); \ - } \ -} - -#else - -/* Don't use Duff's device to unroll loops */ -#define DUFFS_LOOP(pixel_copy_increment, width) \ -{ int n; \ - for ( n=width; n > 0; --n ) { \ - pixel_copy_increment; \ - } \ -} -#define DUFFS_LOOP8(pixel_copy_increment, width) \ - DUFFS_LOOP(pixel_copy_increment, width) -#define DUFFS_LOOP4(pixel_copy_increment, width) \ - DUFFS_LOOP(pixel_copy_increment, width) -#define DUFFS_LOOP_124(pixel_copy_increment1, \ - pixel_copy_increment2, \ - pixel_copy_increment4, width) \ - DUFFS_LOOP(pixel_copy_increment1, width) - -#endif /* USE_DUFFS_LOOP */ - -/* Prevent Visual C++ 6.0 from printing out stupid warnings */ -#if defined(_MSC_VER) && (_MSC_VER >= 600) -#pragma warning(disable: 4550) -#endif - -#endif /* _SDL_blit_h */ - -/* vi: set ts=4 sw=4 expandtab: */ |