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Ported common directory from automated. It contains common
helpers functions for some test suites.
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/** | ||
* Automated SDL_Surface test. | ||
* | ||
* Written by Edgar Simo "bobbens" | ||
* | ||
* Released under Public Domain. | ||
*/ | ||
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#include "SDL.h" | ||
#include "../SDL_at.h" | ||
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#include "common.h" | ||
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/** | ||
* @brief Compares a surface and a surface image for equality. | ||
*/ | ||
int surface_compare( SDL_Surface *sur, const SurfaceImage_t *img, int allowable_error ) | ||
{ | ||
int ret; | ||
int i,j; | ||
int bpp; | ||
Uint8 *p, *pd; | ||
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/* Make sure size is the same. */ | ||
if ((sur->w != img->width) || (sur->h != img->height)) | ||
return -1; | ||
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SDL_LockSurface( sur ); | ||
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ret = 0; | ||
bpp = sur->format->BytesPerPixel; | ||
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/* Compare image - should be same format. */ | ||
for (j=0; j<sur->h; j++) { | ||
for (i=0; i<sur->w; i++) { | ||
p = (Uint8 *)sur->pixels + j * sur->pitch + i * bpp; | ||
pd = (Uint8 *)img->pixel_data + (j*img->width + i) * img->bytes_per_pixel; | ||
switch (bpp) { | ||
case 1: | ||
case 2: | ||
case 3: | ||
ret += 1; | ||
/*printf("%d BPP not supported yet.\n",bpp);*/ | ||
break; | ||
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case 4: | ||
{ | ||
int dist = 0; | ||
Uint8 R, G, B, A; | ||
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SDL_GetRGBA(*(Uint32*)p, sur->format, &R, &G, &B, &A); | ||
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if (img->bytes_per_pixel == 3) { | ||
dist += (R-pd[0])*(R-pd[0]); | ||
dist += (G-pd[1])*(G-pd[1]); | ||
dist += (B-pd[2])*(B-pd[2]); | ||
} else { | ||
dist += (R-pd[0])*(R-pd[0]); | ||
dist += (G-pd[1])*(G-pd[1]); | ||
dist += (B-pd[2])*(B-pd[2]); | ||
dist += (A-pd[3])*(A-pd[3]); | ||
} | ||
/* Allow some difference in blending accuracy */ | ||
if (dist > allowable_error) { | ||
/*printf("pixel %d,%d varies by %d\n", i, j, dist);*/ | ||
++ret; | ||
} | ||
} | ||
break; | ||
} | ||
} | ||
} | ||
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SDL_UnlockSurface( sur ); | ||
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if (ret) { | ||
SDL_SaveBMP(sur, "fail.bmp"); | ||
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SDL_LockSurface( sur ); | ||
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bpp = sur->format->BytesPerPixel; | ||
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if (bpp == 4) { | ||
for (j=0; j<sur->h; j++) { | ||
for (i=0; i<sur->w; i++) { | ||
Uint8 R, G, B, A; | ||
p = (Uint8 *)sur->pixels + j * sur->pitch + i * bpp; | ||
pd = (Uint8 *)img->pixel_data + (j*img->width + i) * img->bytes_per_pixel; | ||
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R = pd[0]; | ||
G = pd[1]; | ||
B = pd[2]; | ||
if (img->bytes_per_pixel == 4) { | ||
A = pd[3]; | ||
} else { | ||
A = 0; | ||
} | ||
*(Uint32*)p = (A << 24) | (R << 16) | (G << 8) | B; | ||
} | ||
} | ||
} | ||
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SDL_UnlockSurface( sur ); | ||
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SDL_SaveBMP(sur, "good.bmp"); | ||
} | ||
return ret; | ||
} |
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/** | ||
* Automated SDL test common framework. | ||
* | ||
* Written by Edgar Simo "bobbens" | ||
* | ||
* Released under Public Domain. | ||
*/ | ||
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#ifndef COMMON_H | ||
# define COMMON_H | ||
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# define FORMAT SDL_PIXELFORMAT_ARGB8888 | ||
# define AMASK 0xff000000 /**< Alpha bit mask. */ | ||
# define RMASK 0x00ff0000 /**< Red bit mask. */ | ||
# define GMASK 0x0000ff00 /**< Green bit mask. */ | ||
# define BMASK 0x000000ff /**< Blue bit mask. */ | ||
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typedef struct SurfaceImage_s { | ||
int width; | ||
int height; | ||
unsigned int bytes_per_pixel; /* 3:RGB, 4:RGBA */ | ||
const unsigned char pixel_data[]; | ||
} SurfaceImage_t; | ||
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#define ALLOWABLE_ERROR_OPAQUE 0 | ||
#define ALLOWABLE_ERROR_BLENDED 64 | ||
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/** | ||
* @brief Compares a surface and a surface image for equality. | ||
* | ||
* @param sur Surface to compare. | ||
* @param img Image to compare against. | ||
* @return 0 if they are the same, -1 on error and positive if different. | ||
*/ | ||
int surface_compare( SDL_Surface *sur, const SurfaceImage_t *img, int allowable_error ); | ||
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#endif /* COMMON_H */ | ||
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#ifndef IMAGES_H | ||
# define IMAGES_H | ||
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#include "common.h" | ||
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/* | ||
* Pull in images for testcases. | ||
*/ | ||
#include "img_primitives.c" | ||
#include "img_primitivesblend.c" | ||
#include "img_face.c" | ||
#include "img_blit.c" | ||
#include "img_blitblend.c" | ||
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#endif /* IMAGES_H */ | ||
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