This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
testsurface.c
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/**
* Original code: automated SDL surface test written by Edgar Simo "bobbens"
*/
#include <stdio.h>
#include <SDL/SDL.h>
#include "../SDL_test.h"
#include "../common/common.h"
#include "../common/images.h"
/* Test case references */
static const TestCaseReference test1 =
(TestCaseReference){ "surface_testLoad", "Tests sprite loading.", TEST_ENABLED, 0, 0};
static const TestCaseReference test2 =
(TestCaseReference){ "surface_testBlit", "Tests some blitting routines.", TEST_ENABLED, 0, 0};
static const TestCaseReference test3 =
(TestCaseReference){ "surface_testBlitBlend", "Tests some more blitting routines.", TEST_ENABLED, 0, 0};
/* Test suite */
extern const TestCaseReference *testSuite[] = {
&test1, &test2, &test3, NULL
};
TestCaseReference **QueryTestSuite() {
return (TestCaseReference **)testSuite;
}
/* Test helpers */
/*!
* Creates test surface
*/
SDL_Surface *
CreateTestSurface() {
SDL_Surface *testsur;
/* Create the test surface. */
testsur = SDL_CreateRGBSurface( 0, 80, 60, 32,
RMASK, GMASK, BMASK, AMASK );
AssertTrue(testsur != NULL, "SDL_CreateRGBSurface");
return testsur;
}
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/**
* @brief Tests a blend mode.
*/
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int testBlitBlendMode(SDL_Surface *testsur, SDL_Surface *face, int mode)
{
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(ret == 0)
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return 1;
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/* 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. */
ret = SDL_SetSurfaceBlendMode( face, mode );
if (ret == 0)
return 1;
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_BlitSurface( face, NULL, testsur, &rect );
if(ret == 0)
return 1;
}
}
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return 0;
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}
/* Test case functions */
/**
* @brief Tests sprite loading.
*/
void surface_testLoad(void *arg)
{
int ret;
SDL_Surface *face, *rface;
ret = SDL_Init(SDL_INIT_VIDEO);
AssertTrue(ret == 0, "SDL_Init(SDL_INIT_VIDEO)");
SDL_Surface *testsur = CreateTestSurface();
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
/* Create the blit surface. */
#ifdef __APPLE__
face = SDL_LoadBMP("icon.bmp");
#else
face = SDL_LoadBMP("../icon.bmp");
#endif
AssertTrue(face != NULL, "SDL_CreateLoadBmp");
/* Set transparent pixel as the pixel at (0,0) */
if (face->format->palette) {
ret = SDL_SetColorKey(face, SDL_RLEACCEL, *(Uint8 *) face->pixels);
AssertTrue(ret == 0, "SDL_SetColorKey");
}
/* Convert to 32 bit to compare. */
rface = SDL_ConvertSurface( face, testsur->format, 0 );
AssertTrue(rface != NULL, "SDL_ConvertSurface");
/* See if it's the same. */
AssertTrue(surface_compare( rface, &img_face, 0 ) == 0,
"Primitives output not the same.");
/* Clean up. */
SDL_FreeSurface( rface );
SDL_FreeSurface( face );
SDL_FreeSurface( testsur );
SDL_Quit();
}
/**
* @brief Tests some blitting routines.
*/
void surface_testBlit(void *arg)
{
int ret;
SDL_Rect rect;
SDL_Surface *face;
int i, j, ni, nj;
ret = SDL_Init(SDL_INIT_VIDEO);
AssertTrue(ret == 0, "SDL_Init(SDL_INIT_VIDEO)");
SDL_Surface *testsur = CreateTestSurface();
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
/* 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
);
AssertTrue(face != NULL, "SDL_CreateRGBSurfaceFrom");
/* 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 );
AssertTrue(ret == 0, "SDL_BlitSurface");
}
}
/* See if it's the same. */
AssertTrue(surface_compare( testsur, &img_blit, 0 ) == 0,
"Blitting output not the same (normal blit).");
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
/* 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 );
AssertTrue(ret == 0, "SDL_SetSurfaceColorMod");
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_BlitSurface( face, NULL, testsur, &rect );
AssertTrue(ret == 0, "SDL_BlitSurface");
}
}
/* See if it's the same. */
AssertTrue(surface_compare( testsur, &img_blitColour, 0 ) == 0,
"Blitting output not the same (using SDL_SetSurfaceColorMod).");
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
/* Restore colour. */
ret = SDL_SetSurfaceColorMod( face, 255, 255, 255 );
AssertTrue(ret == 0, "SDL_SetSurfaceColorMod");
/* 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 );
AssertTrue(ret == 0, "SDL_SetSurfaceAlphaMod");
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_BlitSurface( face, NULL, testsur, &rect );
AssertTrue(ret == 0, "SDL_BlitSurface");
}
}
/* See if it's the same. */
AssertTrue(surface_compare( testsur, &img_blitAlpha, 0 ) == 0,
"Blitting output not the same (using SDL_SetSurfaceAlphaMod).");
/* Clean up. */
SDL_FreeSurface( face );
SDL_FreeSurface( testsur );
SDL_Quit();
}
/**
* @brief Tests some more blitting routines.
*/
void surface_testBlitBlend(void *arg)
{
int ret;
SDL_Rect rect;
SDL_Surface *face;
int i, j, ni, nj;
int mode;
ret = SDL_Init(SDL_INIT_VIDEO);
AssertTrue(ret == 0, "SDL_Init(SDL_INIT_VIDEO)");
SDL_Surface *testsur = CreateTestSurface();
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
/* 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
);
AssertTrue(face != NULL, "SDL_CreateRGBSurfaceFrom");
/* Set alpha mod. */
ret = SDL_SetSurfaceAlphaMod( face, 100 );
AssertTrue(ret == 0, "SDL_SetSurfaceAlphaMod");
/* 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 (testBlitBlendMode( testsur, face, SDL_BLENDMODE_NONE ))
return;
AssertTrue(surface_compare( testsur, &img_blendNone, 0 ) == 0,
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"Blitting blending output not the same (using SDL_BLENDMODE_NONE).");
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/* Test Blend. */
if (testBlitBlendMode( testsur, face, SDL_BLENDMODE_BLEND ))
return;
AssertTrue(surface_compare( testsur, &img_blendBlend, 0 ) == 0,
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"Blitting blending output not the same (using SDL_BLENDMODE_BLEND).");
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/* Test Add. */
if (testBlitBlendMode( testsur, face, SDL_BLENDMODE_ADD ))
return;
AssertTrue(surface_compare( testsur, &img_blendAdd, 0 ) == 0,
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"Blitting blending output not the same (using SDL_BLENDMODE_ADD).");
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/* Test Mod. */
if (testBlitBlendMode( testsur, face, SDL_BLENDMODE_MOD ))
return;
AssertTrue(surface_compare( testsur, &img_blendMod, 0 ) == 0,
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"Blitting blending output not the same (using SDL_BLENDMODE_MOD).");
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/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
/* 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 );
AssertTrue(ret == 0, "SDL_SetSurfaceColorMod");
/* Set alpha mod. */
ret = SDL_SetSurfaceAlphaMod( face, (100/ni)*i );
AssertTrue(ret == 0, "SDL_SetSurfaceAlphaMod");
/* Crazy blending mode magic. */
mode = (i/4*j/4) % 4;
if (mode==0) mode = SDL_BLENDMODE_NONE;
else if (mode==1) mode = SDL_BLENDMODE_BLEND;
else if (mode==2) mode = SDL_BLENDMODE_ADD;
else if (mode==3) mode = SDL_BLENDMODE_MOD;
ret = SDL_SetSurfaceBlendMode( face, mode );
AssertTrue(ret == 0, "SDL_SetSurfaceBlendMode");
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_BlitSurface( face, NULL, testsur, &rect );
AssertTrue(ret == 0, "SDL_BlitSurface");
}
}
/* Check to see if matches. */
AssertTrue(surface_compare( testsur, &img_blendAll, 0 ) == 0,
"Blitting blending output not the same (using SDL_BLEND_*).");
/* Clean up. */
SDL_FreeSurface( face );
SDL_FreeSurface( testsur );
SDL_Quit();
}