This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
surface.c
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/**
* Automated SDL_Surface test.
*
* Written by Edgar Simo "bobbens"
*
* Released under Public Domain.
*/
#include "SDL.h"
#include "SDL_surface.h"
#include "SDL_video.h"
#include "../SDL_at.h"
#include "../common/common.h"
/*
* Pull in images for testcases.
*/
#include "../common/images.h"
/*
* Prototypes.
*/
/* Testcases. */
static void surface_testLoad( SDL_Surface *testsur );
static void surface_testBlit( SDL_Surface *testsur );
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static int surface_testBlitBlendMode( SDL_Surface *testsur, SDL_Surface *face, SDL_BlendMode bMode );
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static void surface_testBlitBlend( SDL_Surface *testsur );
/**
* @brief Tests sprite loading.
*/
static void surface_testLoad( SDL_Surface *testsur )
{
int ret;
SDL_Surface *face, *rface;
SDL_ATbegin( "Load Test" );
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
if (SDL_ATassert( "SDL_FillRect", ret == 0))
return;
/* Create the blit surface. */
#ifdef __APPLE__
face = SDL_LoadBMP("icon.bmp");
#else
face = SDL_LoadBMP("../icon.bmp");
#endif
if (SDL_ATassert( "SDL_CreateLoadBmp", face != NULL))
return;
/* Set transparent pixel as the pixel at (0,0) */
if (face->format->palette) {
ret = SDL_SetColorKey(face, SDL_RLEACCEL, *(Uint8 *) face->pixels);
if (SDL_ATassert( "SDL_SetColorKey", ret == 0))
return;
}
/* Convert to 32 bit to compare. */
rface = SDL_ConvertSurface( face, testsur->format, 0 );
if (SDL_ATassert( "SDL_ConvertSurface", rface != NULL))
return;
/* See if it's the same. */
if (SDL_ATassert( "Primitives output not the same.",
surface_compare( rface, &img_face, 0 )==0 ))
return;
/* Clean up. */
SDL_FreeSurface( rface );
SDL_FreeSurface( face );
SDL_ATend();
}
/**
* @brief Tests some blitting routines.
*/
static void surface_testBlit( SDL_Surface *testsur )
{
int ret;
SDL_Rect rect;
SDL_Surface *face;
int i, j, ni, nj;
SDL_ATbegin( "Blit Tests" );
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
if (SDL_ATassert( "SDL_FillRect", ret == 0))
return;
/* Create face surface. */
face = SDL_CreateRGBSurfaceFrom( (void*)img_face.pixel_data,
img_face.width, img_face.height, 32, img_face.width*4,
#if (SDL_BYTEORDER == SDL_BIG_ENDIAN)
0xff000000, /* Red bit mask. */
0x00ff0000, /* Green bit mask. */
0x0000ff00, /* Blue bit mask. */
0x000000ff /* Alpha bit mask. */
#else
0x000000ff, /* Red bit mask. */
0x0000ff00, /* Green bit mask. */
0x00ff0000, /* Blue bit mask. */
0xff000000 /* Alpha bit mask. */
#endif
);
if (SDL_ATassert( "SDL_CreateRGBSurfaceFrom", face != NULL))
return;
/* Constant values. */
rect.w = face->w;
rect.h = face->h;
ni = testsur->w - face->w;
nj = testsur->h - face->h;
/* Loop blit. */
for (j=0; j <= nj; j+=4) {
for (i=0; i <= ni; i+=4) {
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_BlitSurface( face, NULL, testsur, &rect );
if (SDL_ATassert( "SDL_BlitSurface", ret == 0))
return;
}
}
/* See if it's the same. */
if (SDL_ATassert( "Blitting output not the same (normal blit).",
surface_compare( testsur, &img_blit, 0 )==0 ))
return;
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
if (SDL_ATassert( "SDL_FillRect", ret == 0))
return;
/* Test blitting with colour mod. */
for (j=0; j <= nj; j+=4) {
for (i=0; i <= ni; i+=4) {
/* Set colour mod. */
ret = SDL_SetSurfaceColorMod( face, (255/nj)*j, (255/ni)*i, (255/nj)*j );
if (SDL_ATassert( "SDL_SetSurfaceColorMod", ret == 0))
return;
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_BlitSurface( face, NULL, testsur, &rect );
if (SDL_ATassert( "SDL_BlitSurface", ret == 0))
return;
}
}
/* See if it's the same. */
if (SDL_ATassert( "Blitting output not the same (using SDL_SetSurfaceColorMod).",
surface_compare( testsur, &img_blitColour, 0 )==0 ))
return;
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
if (SDL_ATassert( "SDL_FillRect", ret == 0))
return;
/* Restore colour. */
ret = SDL_SetSurfaceColorMod( face, 255, 255, 255 );
if (SDL_ATassert( "SDL_SetSurfaceColorMod", ret == 0))
return;
/* Test blitting with colour mod. */
for (j=0; j <= nj; j+=4) {
for (i=0; i <= ni; i+=4) {
/* Set alpha mod. */
ret = SDL_SetSurfaceAlphaMod( face, (255/ni)*i );
if (SDL_ATassert( "SDL_SetSurfaceAlphaMod", ret == 0))
return;
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_BlitSurface( face, NULL, testsur, &rect );
if (SDL_ATassert( "SDL_BlitSurface", ret == 0))
return;
}
}
/* See if it's the same. */
if (SDL_ATassert( "Blitting output not the same (using SDL_SetSurfaceAlphaMod).",
surface_compare( testsur, &img_blitAlpha, 0 )==0 ))
return;
/* Clean up. */
SDL_FreeSurface( face );
SDL_ATend();
}
/**
* @brief Tests a blend mode.
*/
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static int surface_testBlitBlendMode( SDL_Surface *testsur, SDL_Surface *face, SDL_BlendMode bMode )
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{
int ret;
int i, j, ni, nj;
SDL_Rect rect;
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
if (SDL_ATassert( "SDL_FillRect", ret == 0))
return 1;
/* Steps to take. */
ni = testsur->w - face->w;
nj = testsur->h - face->h;
/* Constant values. */
rect.w = face->w;
rect.h = face->h;
/* Test blend mode. */
for (j=0; j <= nj; j+=4) {
for (i=0; i <= ni; i+=4) {
/* Set blend mode. */
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ret = SDL_SetSurfaceBlendMode( face, bMode );
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if (SDL_ATassert( "SDL_SetSurfaceBlendMode", ret == 0))
return 1;
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_BlitSurface( face, NULL, testsur, &rect );
if (SDL_ATassert( "SDL_BlitSurface", ret == 0))
return 1;
}
}
return 0;
}
/**
* @brief Tests some more blitting routines.
*/
static void surface_testBlitBlend( SDL_Surface *testsur )
{
int ret;
SDL_Rect rect;
SDL_Surface *face;
int i, j, ni, nj;
int mode;
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SDL_BlendMode bMode;
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SDL_ATbegin( "Blit Blending Tests" );
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
if (SDL_ATassert( "SDL_FillRect", ret == 0))
return;
/* Create the blit surface. */
face = SDL_CreateRGBSurfaceFrom( (void*)img_face.pixel_data,
img_face.width, img_face.height, 32, img_face.width*4,
#if (SDL_BYTEORDER == SDL_BIG_ENDIAN)
0xff000000, /* Red bit mask. */
0x00ff0000, /* Green bit mask. */
0x0000ff00, /* Blue bit mask. */
0x000000ff /* Alpha bit mask. */
#else
0x000000ff, /* Red bit mask. */
0x0000ff00, /* Green bit mask. */
0x00ff0000, /* Blue bit mask. */
0xff000000 /* Alpha bit mask. */
#endif
);
if (SDL_ATassert( "SDL_CreateRGBSurfaceFrom", face != NULL))
return;
/* Set alpha mod. */
ret = SDL_SetSurfaceAlphaMod( face, 100 );
if (SDL_ATassert( "SDL_SetSurfaceAlphaMod", ret == 0))
return;
/* Steps to take. */
ni = testsur->w - face->w;
nj = testsur->h - face->h;
/* Constant values. */
rect.w = face->w;
rect.h = face->h;
/* Test None. */
if (surface_testBlitBlendMode( testsur, face, SDL_BLENDMODE_NONE ))
return;
if (SDL_ATassert( "Blitting blending output not the same (using SDL_BLENDMODE_NONE).",
surface_compare( testsur, &img_blendNone, 0 )==0 ))
return;
/* Test Blend. */
if (surface_testBlitBlendMode( testsur, face, SDL_BLENDMODE_BLEND ))
return;
if (SDL_ATassert( "Blitting blending output not the same (using SDL_BLENDMODE_BLEND).",
surface_compare( testsur, &img_blendBlend, 0 )==0 ))
return;
/* Test Add. */
if (surface_testBlitBlendMode( testsur, face, SDL_BLENDMODE_ADD ))
return;
if (SDL_ATassert( "Blitting blending output not the same (using SDL_BLENDMODE_ADD).",
surface_compare( testsur, &img_blendAdd, 0 )==0 ))
return;
/* Test Mod. */
if (surface_testBlitBlendMode( testsur, face, SDL_BLENDMODE_MOD ))
return;
if (SDL_ATassert( "Blitting blending output not the same (using SDL_BLENDMODE_MOD).",
surface_compare( testsur, &img_blendMod, 0 )==0 ))
return;
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
if (SDL_ATassert( "SDL_FillRect", ret == 0))
return;
/* Loop blit. */
for (j=0; j <= nj; j+=4) {
for (i=0; i <= ni; i+=4) {
/* Set colour mod. */
ret = SDL_SetSurfaceColorMod( face, (255/nj)*j, (255/ni)*i, (255/nj)*j );
if (SDL_ATassert( "SDL_SetSurfaceColorMod", ret == 0))
return;
/* Set alpha mod. */
ret = SDL_SetSurfaceAlphaMod( face, (100/ni)*i );
if (SDL_ATassert( "SDL_SetSurfaceAlphaMod", ret == 0))
return;
/* Crazy blending mode magic. */
mode = (i/4*j/4) % 4;
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if (mode==0) bMode = SDL_BLENDMODE_NONE;
else if (mode==1) bMode = SDL_BLENDMODE_BLEND;
else if (mode==2) bMode = SDL_BLENDMODE_ADD;
else if (mode==3) bMode = SDL_BLENDMODE_MOD;
ret = SDL_SetSurfaceBlendMode( face, bMode );
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if (SDL_ATassert( "SDL_SetSurfaceBlendMode", ret == 0))
return;
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_BlitSurface( face, NULL, testsur, &rect );
if (SDL_ATassert( "SDL_BlitSurface", ret == 0))
return;
}
}
/* Check to see if matches. */
if (SDL_ATassert( "Blitting blending output not the same (using SDL_BLEND_*).",
surface_compare( testsur, &img_blendAll, 0 )==0 ))
return;
/* Clean up. */
SDL_FreeSurface( face );
SDL_ATend();
}
/**
* @brief Runs all the tests on the surface.
*
* @param testsur Surface to run tests on.
*/
void surface_runTests( SDL_Surface *testsur )
{
/* Software surface blitting. */
surface_testBlit( testsur );
surface_testBlitBlend( testsur );
}
/**
* @brief Entry point.
*/
#ifdef TEST_STANDALONE
int main( int argc, const char *argv[] )
{
(void) argc;
(void) argv;
#else /* TEST_STANDALONE */
int test_surface (void)
{
#endif /* TEST_STANDALONE */
int ret;
SDL_Surface *testsur;
SDL_ATinit( "SDL_Surface" );
SDL_ATbegin( "Initializing" );
/* Initializes the SDL subsystems. */
ret = SDL_Init(0);
if (SDL_ATassert( "SDL_Init(0)", ret == 0))
goto err;
/* Now run on the video mode. */
ret = SDL_InitSubSystem( SDL_INIT_VIDEO );
if (SDL_ATassert( "SDL_InitSubSystem( SDL_INIT_VIDEO )", ret == 0))
goto err;
/*
* Surface on surface tests.
*/
/* Create the test surface. */
testsur = SDL_CreateRGBSurface( 0, 80, 60, 32,
RMASK, GMASK, BMASK, AMASK );
if (SDL_ATassert( "SDL_CreateRGBSurface", testsur != NULL))
goto err;
SDL_ATend();
/* Run surface on surface tests. */
surface_testLoad( testsur );
surface_runTests( testsur );
/* Clean up. */
SDL_FreeSurface( testsur );
/* Exit SDL. */
SDL_Quit();
return SDL_ATfinish();
err:
return SDL_ATfinish();
}