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-rw-r--r--distrib/sdl-1.2.12/src/video/SDL_blit.h541
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diff --git a/distrib/sdl-1.2.12/src/video/SDL_blit.h b/distrib/sdl-1.2.12/src/video/SDL_blit.h
deleted file mode 100644
index 9c43ce2..0000000
--- a/distrib/sdl-1.2.12/src/video/SDL_blit.h
+++ /dev/null
@@ -1,541 +0,0 @@
-/*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997-2006 Sam Lantinga
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
- Sam Lantinga
- slouken@libsdl.org
-*/
-#include "SDL_config.h"
-
-#ifndef _SDL_blit_h
-#define _SDL_blit_h
-
-#include "SDL_endian.h"
-
-/* The structure passed to the low level blit functions */
-typedef struct {
- Uint8 *s_pixels;
- int s_width;
- int s_height;
- int s_skip;
- Uint8 *d_pixels;
- int d_width;
- int d_height;
- int d_skip;
- void *aux_data;
- SDL_PixelFormat *src;
- Uint8 *table;
- SDL_PixelFormat *dst;
-} SDL_BlitInfo;
-
-/* The type definition for the low level blit functions */
-typedef void (*SDL_loblit)(SDL_BlitInfo *info);
-
-/* This is the private info structure for software accelerated blits */
-struct private_swaccel {
- SDL_loblit blit;
- void *aux_data;
-};
-
-/* Blit mapping definition */
-typedef struct SDL_BlitMap {
- SDL_Surface *dst;
- int identity;
- Uint8 *table;
- SDL_blit hw_blit;
- SDL_blit sw_blit;
- struct private_hwaccel *hw_data;
- struct private_swaccel *sw_data;
-
- /* the version count matches the destination; mismatch indicates
- an invalid mapping */
- unsigned int format_version;
-} SDL_BlitMap;
-
-
-/* Functions found in SDL_blit.c */
-extern int SDL_CalculateBlit(SDL_Surface *surface);
-
-/* Functions found in SDL_blit_{0,1,N,A}.c */
-extern SDL_loblit SDL_CalculateBlit0(SDL_Surface *surface, int complex);
-extern SDL_loblit SDL_CalculateBlit1(SDL_Surface *surface, int complex);
-extern SDL_loblit SDL_CalculateBlitN(SDL_Surface *surface, int complex);
-extern SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int complex);
-
-/*
- * Useful macros for blitting routines
- */
-
-#define FORMAT_EQUAL(A, B) \
- ((A)->BitsPerPixel == (B)->BitsPerPixel \
- && ((A)->Rmask == (B)->Rmask) && ((A)->Amask == (B)->Amask))
-
-/* Load pixel of the specified format from a buffer and get its R-G-B values */
-/* FIXME: rescale values to 0..255 here? */
-#define RGB_FROM_PIXEL(Pixel, fmt, r, g, b) \
-{ \
- r = (((Pixel&fmt->Rmask)>>fmt->Rshift)<<fmt->Rloss); \
- g = (((Pixel&fmt->Gmask)>>fmt->Gshift)<<fmt->Gloss); \
- b = (((Pixel&fmt->Bmask)>>fmt->Bshift)<<fmt->Bloss); \
-}
-#define RGB_FROM_RGB565(Pixel, r, g, b) \
-{ \
- r = (((Pixel&0xF800)>>11)<<3); \
- g = (((Pixel&0x07E0)>>5)<<2); \
- b = ((Pixel&0x001F)<<3); \
-}
-#define RGB_FROM_RGB555(Pixel, r, g, b) \
-{ \
- r = (((Pixel&0x7C00)>>10)<<3); \
- g = (((Pixel&0x03E0)>>5)<<3); \
- b = ((Pixel&0x001F)<<3); \
-}
-#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 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; /* appease gcc */ \
- break; \
- } \
-} while(0)
-
-#define DISEMBLE_RGB(buf, bpp, fmt, Pixel, r, g, b) \
-do { \
- switch (bpp) { \
- 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; /* prevent gcc from complaining */ \
- break; \
- } \
- RGB_FROM_PIXEL(Pixel, fmt, r, g, b); \
-} while(0)
-
-/* Assemble R-G-B values into a specified pixel format and store them */
-#ifdef __NDS__ // FIXME
-#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) | (1<<15); \
-}
-#else
-#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); \
-}
-#endif // __NDS__ FIXME
-#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 ASSEMBLE_RGB(buf, bpp, fmt, r, g, b) \
-{ \
- switch (bpp) { \
- 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; \
- } \
-}
-#define ASSEMBLE_RGB_AMASK(buf, bpp, fmt, r, g, b, Amask) \
-{ \
- switch (bpp) { \
- case 2: { \
- Uint16 *bufp; \
- Uint16 Pixel; \
- \
- bufp = (Uint16 *)buf; \
- PIXEL_FROM_RGB(Pixel, fmt, r, g, b); \
- *bufp = Pixel | (*bufp & Amask); \
- } \
- 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 *bufp; \
- Uint32 Pixel; \
- \
- bufp = (Uint32 *)buf; \
- PIXEL_FROM_RGB(Pixel, fmt, r, g, b); \
- *bufp = Pixel | (*bufp & Amask); \
- } \
- break; \
- } \
-}
-
-/* FIXME: Should we rescale alpha into 0..255 here? */
-#define RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a) \
-{ \
- r = ((Pixel&fmt->Rmask)>>fmt->Rshift)<<fmt->Rloss; \
- g = ((Pixel&fmt->Gmask)>>fmt->Gshift)<<fmt->Gloss; \
- b = ((Pixel&fmt->Bmask)>>fmt->Bshift)<<fmt->Bloss; \
- a = ((Pixel&fmt->Amask)>>fmt->Ashift)<<fmt->Aloss; \
-}
-#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 DISEMBLE_RGBA(buf, bpp, fmt, Pixel, r, g, b, a) \
-do { \
- switch (bpp) { \
- case 2: \
- Pixel = *((Uint16 *)(buf)); \
- break; \
- \
- case 3: {/* FIXME: broken code (no alpha) */ \
- 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; \
- } \
- RGBA_FROM_PIXEL(Pixel, fmt, r, g, b, a); \
- Pixel &= ~fmt->Amask; \
-} while(0)
-
-/* FIXME: this isn't correct, especially for Alpha (maximum != 255) */
-#ifdef __NDS__ // FIXME
-#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) | (1<<15); \
-}
-#else
-#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); \
-}
-#endif // __NDS__ FIXME
-#define ASSEMBLE_RGBA(buf, bpp, fmt, r, g, b, a) \
-{ \
- switch (bpp) { \
- case 2: { \
- Uint16 Pixel; \
- \
- PIXEL_FROM_RGBA(Pixel, fmt, r, g, b, a); \
- *((Uint16 *)(buf)) = Pixel; \
- } \
- break; \
- \
- case 3: { /* FIXME: broken code (no alpha) */ \
- 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 based on a source alpha value */
-#define ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB) \
-do { \
- dR = (((sR-dR)*(A))>>8)+dR; \
- dG = (((sG-dG)*(A))>>8)+dG; \
- dB = (((sB-dB)*(A))>>8)+dB; \
-} while(0)
-
-/* Blend the RGB values of two Pixels based on a source alpha value */
-#define ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB) \
-do { \
- unsigned tR, tG, tB, tA; \
- tA = 255 - sA; \
- tR = 1 + (sR * sA) + (dR * tA); \
- dR = (tR + (tR >> 8)) >> 8; \
- tG = 1 + (sG * sA) + (dG * tA); \
- dG = (tG + (tG >> 8)) >> 8; \
- tB = 1 + (sB * sA) + (dB * tA); \
- dB = (tB + (tB >> 8)) >> 8; \
-} 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 ); \
- } \
-}
-
-/* 2 - times unrolled loop */
-#define DUFFS_LOOP_DOUBLE2(pixel_copy_increment, \
- double_pixel_copy_increment, width) \
-{ int n, w = width; \
- if( w & 1 ) { \
- pixel_copy_increment; \
- w--; \
- } \
- if ( w > 0 ) { \
- n = ( w + 2) / 4; \
- switch( w & 2 ) { \
- case 0: do { double_pixel_copy_increment; \
- case 2: double_pixel_copy_increment; \
- } while ( --n > 0 ); \
- } \
- } \
-}
-
-/* 2 - times unrolled loop 4 pixels */
-#define DUFFS_LOOP_QUATRO2(pixel_copy_increment, \
- double_pixel_copy_increment, \
- quatro_pixel_copy_increment, width) \
-{ int n, w = width; \
- if(w & 1) { \
- pixel_copy_increment; \
- w--; \
- } \
- if(w & 2) { \
- double_pixel_copy_increment; \
- w -= 2; \
- } \
- if ( w > 0 ) { \
- n = ( w + 7 ) / 8; \
- switch( w & 4 ) { \
- case 0: do { quatro_pixel_copy_increment; \
- case 4: quatro_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)
-
-#else
-
-/* Don't use Duff's device to unroll loops */
-#define DUFFS_LOOP_DOUBLE2(pixel_copy_increment, \
- double_pixel_copy_increment, width) \
-{ int n = width; \
- if( n & 1 ) { \
- pixel_copy_increment; \
- n--; \
- } \
- n=n>>1; \
- for(; n > 0; --n) { \
- double_pixel_copy_increment; \
- } \
-}
-
-/* Don't use Duff's device to unroll loops */
-#define DUFFS_LOOP_QUATRO2(pixel_copy_increment, \
- double_pixel_copy_increment, \
- quatro_pixel_copy_increment, width) \
-{ int n = width; \
- if(n & 1) { \
- pixel_copy_increment; \
- n--; \
- } \
- if(n & 2) { \
- double_pixel_copy_increment; \
- n -= 2; \
- } \
- n=n>>2; \
- for(; n > 0; --n) { \
- quatro_pixel_copy_increment; \
- } \
-}
-
-/* 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)
-
-#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 */
generated by cgit v1.1 at 2024-04-27 14:06:13 +0000