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testsurface.c
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testsurface.c
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/**
* Original code: automated SDL surface test written by Edgar Simo "bobbens"
*/
#include <stdio.h>
#include <sys/stat.h>
#include <SDL/SDL.h>
#include "../../include/SDL_test.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_testBlitBlendNone", "Tests blitting routines with none blending.", TEST_ENABLED, 0, 0};
static const TestCaseReference test4 =
(TestCaseReference){ "surface_testLoadFailure", "Tests sprite loading. A failure case.", TEST_ENABLED, 0, 0};
static const TestCaseReference test5 =
(TestCaseReference){ "surface_testConversion", "Tests sprite conversion.", TEST_ENABLED, 0, 0};
static const TestCaseReference test6 =
(TestCaseReference){ "surface_testBlitColorMod", "Tests some blitting routines with color mod.", TEST_ENABLED, 0, 0};
static const TestCaseReference test7 =
(TestCaseReference){ "surface_testBlitAlphaMod", "Tests some blitting routines with alpha mod.", TEST_ENABLED, 0, 0};
static const TestCaseReference test8 =
(TestCaseReference){ "surface_testBlitBlendLoop", "Test blittin routines with blending", TEST_ENABLED, 0, 0};
static const TestCaseReference test9 =
(TestCaseReference){ "surface_testBlitBlendBlend", "Tests blitting routines with blend blending.", TEST_ENABLED, 0, 0};
static const TestCaseReference test10 =
(TestCaseReference){ "surface_testBlitBlendAdd", "Tests blitting routines with add blending.", TEST_ENABLED, 0, 0};
static const TestCaseReference test11 =
(TestCaseReference){ "surface_testBlitBlendMod", "Tests blitting routines with modblending.", TEST_ENABLED, 0, 0};
/* Test suite */
extern const TestCaseReference *testSuite[] = {
&test1, &test2, &test3, &test4, &test5,
&test6, &test7, &test8, &test9, &test10, &test11, NULL
};
TestCaseReference **QueryTestSuite() {
return (TestCaseReference **)testSuite;
}
/* Function prototypes */
SDL_Surface *_CreateTestSurface();
/* Create test fixture */
static SDL_Surface *testsur = NULL;
void
SetUp(void *arg)
{
int ret = SDL_Init(SDL_INIT_VIDEO);
AssertTrue(ret == 0, "SDL_Init(SDL_INIT_VIDEO)");
testsur = _CreateTestSurface();
AssertTrue(testsur != NULL, "SDL_Init(SDL_INIT_VIDEO)");
}
void
TearDown(void *arg)
{
SDL_FreeSurface( testsur );
SDL_Quit();
}
/* Helper functions for the test cases */
#define TEST_SURFACE_WIDTH 80
#define TEST_SURFACE_HEIGHT 60
/*!
* Creates test surface
*/
SDL_Surface *
_CreateTestSurface()
{
SDL_Surface *testsur = NULL;
/* Create the test surface. */
testsur = SDL_CreateRGBSurface( 0,
TEST_SURFACE_WIDTH, TEST_SURFACE_HEIGHT, 32,
RMASK, GMASK, BMASK, AMASK );
if(testsur->w != TEST_SURFACE_WIDTH) {
AssertFail("Test surface width doesn't match");
}
if(testsur->h != TEST_SURFACE_HEIGHT) {
AssertFail("Test surface height doesn't match");
}
AssertTrue(testsur != NULL, "SDL_CreateRGBSurface");
return testsur;
}
/*!
* Create test surface from in-memory image
*/
SDL_Surface *
_createTestSurfaceFromMemory()
{
SDL_Surface *face = NULL;
/* 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");
return face;
}
/**
* @brief Tests a blend mode.
*/
void _testBlitBlendMode(SDL_Surface *testsur, SDL_Surface *face, int mode)
{
int ret;
int i, j, ni, nj;
SDL_Rect rect;
AssertTrue(testsur != NULL, "testsur != NULL");
AssertTrue(face != NULL, "face != NULL");
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
/* 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 );
AssertTrue(ret == 0, "SDL_SetSurfaceBlendMode");
/* Blitting. */
rect.x = i;
rect.y = j;
// TODO Add pixel level validation, SDL_BlitSurface might be no-op
ret = SDL_BlitSurface( face, NULL, testsur, &rect );
AssertTrue(ret == 0, "SDL_BlitSurface");
}
}
}
int
_AssertFileExist(const char *filename)
{
struct stat st;
int ret = stat(filename, &st);
AssertTrue(ret == 0, "Does file %s exist", filename);
}
/* Test case functions */
/**
* @brief Tests sprite loading
*/
void surface_testLoad(void *arg)
{
int ret;
SDL_Surface *face, *rface;
/* Clear surface. */
/*
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
*/
/* Create the blit surface. */
const char *filename = "data/images/icon.bmp";
_AssertFileExist(filename);
face = SDL_LoadBMP(filename);
AssertTrue(face != NULL, "SDL_CreateLoadBmp");
AssertTrue(face->w == 32, "testing icon width");
AssertTrue(face->h == 32, "testing icon height");
}
/*!
* Tests sprite conversion.
*/
void surface_testConversion(void *arg)
{
SDL_Surface *rface = NULL, *face = NULL;
int ret = 0;
const char *filename = "data/images/icon.bmp";
_AssertFileExist(filename);
face = SDL_LoadBMP(filename);
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,
"Comparing primitives output.");
/* Clean up. */
SDL_FreeSurface( rface );
SDL_FreeSurface( face );
}
/**
* @brief Tests sprite loading. A failure case.
*/
void surface_testLoadFailure(void *arg)
{
SDL_Surface *face = SDL_LoadBMP("nonexistant.bmp");
AssertTrue(face == NULL, "SDL_CreateLoadBmp");
}
/**
* @brief Tests some blitting routines.
*/
void surface_testBlit(void *arg)
{
int ret;
SDL_Rect rect;
SDL_Surface *face;
int i, j, ni, nj;
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
face = _createTestSurfaceFromMemory();
/* 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;
// TODO Add pixel level validation, SDL_BlitSurface might be no-op
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,
"Comparing blitting output (normal blit).");
/* Clean up. */
SDL_FreeSurface( face );
}
/**
* @brief Tests some blitting routines with color mod
*/
void surface_testBlitColorMod(void *arg)
{
int ret;
SDL_Rect rect;
SDL_Surface *face;
int i, j, ni, nj;
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
face = _createTestSurfaceFromMemory();
/* Constant values. */
rect.w = face->w;
rect.h = face->h;
ni = testsur->w - face->w;
nj = testsur->h - face->h;
/* 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;
// TODO Add pixel level validation, SDL_BlitSurface might be no-op
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,
"Comparing blitting output (using SDL_SetSurfaceColorMod).");
/* Clean up. */
SDL_FreeSurface( face );
}
/**
* @brief Tests some blitting routines with alpha mod
*/
void surface_testBlitAlphaMod(void *arg)
{
int ret;
SDL_Rect rect;
SDL_Surface *face;
int i, j, ni, nj;
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
face = _createTestSurfaceFromMemory();
/* Constant values. */
rect.w = face->w;
rect.h = face->h;
ni = testsur->w - face->w;
nj = testsur->h - face->h;
/* 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;
// TODO Add pixel level validation, SDL_BlitSurface might be no-op
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,
"Comparing blitting output (using SDL_SetSurfaceAlphaMod).");
/* Clean up. */
SDL_FreeSurface( face );
}
/**
* @brief Tests some more blitting routines.
*/
void surface_testBlitBlendNone(void *arg)
{
int ret;
SDL_Rect rect;
SDL_Surface *face;
int i, j, ni, nj;
int mode;
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
face = _createTestSurfaceFromMemory();
/* Set alpha mod. */
// TODO alpha value could be generated by fuzzer
ret = SDL_SetSurfaceAlphaMod( face, 100 );
AssertTrue(ret == 0, "SDL_SetSurfaceAlphaMod");
/* Steps to take. */
ni = testsur->w - face->w;
nj = testsur->h - face->h;
AssertTrue(ni != 0, "ni != 0");
AssertTrue(nj != 0, "nj != 0");
/* Constant values. */
rect.w = face->w;
rect.h = face->h;
/* Test None. */
_testBlitBlendMode( testsur, face, SDL_BLENDMODE_NONE );
AssertTrue(surface_compare( testsur, &img_blendNone, 0 ) == 0,
"Comparing blitting blending output (using SDL_BLENDMODE_NONE).");
/* Test Blend. */
_testBlitBlendMode( testsur, face, SDL_BLENDMODE_BLEND );
AssertTrue(surface_compare( testsur, &img_blendBlend, 0 ) == 0,
"Comparing blitting blending output (using SDL_BLENDMODE_BLEND).");
/* Test Add. */
_testBlitBlendMode( testsur, face, SDL_BLENDMODE_ADD );
AssertTrue(surface_compare( testsur, &img_blendAdd, 0 ) == 0,
"Comparing blitting blending output (using SDL_BLENDMODE_ADD).");
/* Test Mod. */
_testBlitBlendMode( testsur, face, SDL_BLENDMODE_MOD );
AssertTrue(surface_compare( testsur, &img_blendMod, 0 ) == 0,
"Comparing blitting blending output not the same (using SDL_BLENDMODE_MOD).");
}
/**
* @brief Tests some more blitting routines.
*/
void surface_testBlitBlendBlend(void *arg)
{
int ret;
SDL_Rect rect;
SDL_Surface *face;
int i, j, ni, nj;
int mode;
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
face = _createTestSurfaceFromMemory();
/* Set alpha mod. */
// TODO alpha value could be generated by fuzzer
ret = SDL_SetSurfaceAlphaMod( face, 100 );
AssertTrue(ret == 0, "SDL_SetSurfaceAlphaMod");
/* Steps to take. */
ni = testsur->w - face->w;
nj = testsur->h - face->h;
AssertTrue(ni != 0, "ni != 0");
AssertTrue(nj != 0, "nj != 0");
/* Constant values. */
rect.w = face->w;
rect.h = face->h;
/* Test Blend. */
_testBlitBlendMode( testsur, face, SDL_BLENDMODE_BLEND );
AssertTrue(surface_compare( testsur, &img_blendBlend, 0 ) == 0,
"Comparing blitting blending output (using SDL_BLENDMODE_BLEND).");
}
/**
* @brief Tests some more blitting routines.
*/
void surface_testBlitBlendAdd(void *arg)
{
int ret;
SDL_Rect rect;
SDL_Surface *face;
int i, j, ni, nj;
int mode;
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
face = _createTestSurfaceFromMemory();
/* Set alpha mod. */
// TODO alpha value could be generated by fuzzer
ret = SDL_SetSurfaceAlphaMod( face, 100 );
AssertTrue(ret == 0, "SDL_SetSurfaceAlphaMod");
/* Steps to take. */
ni = testsur->w - face->w;
nj = testsur->h - face->h;
AssertTrue(ni != 0, "ni != 0");
AssertTrue(nj != 0, "nj != 0");
/* Constant values. */
rect.w = face->w;
rect.h = face->h;
/* Test Add. */
_testBlitBlendMode( testsur, face, SDL_BLENDMODE_ADD );
AssertTrue(surface_compare( testsur, &img_blendAdd, 0 ) == 0,
"Comparing blitting blending output (using SDL_BLENDMODE_ADD).");
}
/**
* @brief Tests some more blitting routines.
*/
void surface_testBlitBlendMod(void *arg)
{
int ret;
SDL_Rect rect;
SDL_Surface *face;
int i, j, ni, nj;
int mode;
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
face = _createTestSurfaceFromMemory();
/* Set alpha mod. */
// TODO alpha value could be generated by fuzzer
ret = SDL_SetSurfaceAlphaMod( face, 100 );
AssertTrue(ret == 0, "SDL_SetSurfaceAlphaMod");
/* Steps to take. */
ni = testsur->w - face->w;
nj = testsur->h - face->h;
AssertTrue(ni != 0, "ni != 0");
AssertTrue(nj != 0, "nj != 0");
/* Constant values. */
rect.w = face->w;
rect.h = face->h;
/* Test None. */
/* Test Mod. */
_testBlitBlendMode( testsur, face, SDL_BLENDMODE_MOD );
AssertTrue(surface_compare( testsur, &img_blendMod, 0 ) == 0,
"Comparing blitting blending output (using SDL_BLENDMODE_MOD).");
}
/**
* @brief Tests some more blitting routines with loop
*/
void surface_testBlitBlendLoop(void *arg) {
int ret;
SDL_Rect rect;
SDL_Surface *face;
int i, j, ni, nj;
int mode;
/* Clear surface. */
ret = SDL_FillRect( testsur, NULL,
SDL_MapRGB( testsur->format, 0, 0, 0 ) );
AssertTrue(ret == 0, "SDL_FillRect");
face = _createTestSurfaceFromMemory();
/* Set alpha mod. */
// TODO alpha value could be generated by fuzzer
ret = SDL_SetSurfaceAlphaMod( face, 100 );
AssertTrue(ret == 0, "SDL_SetSurfaceAlphaMod");
/* Steps to take. */
ni = testsur->w - face->w;
nj = testsur->h - face->h;
AssertTrue(ni != 0, "ni != 0");
AssertTrue(nj != 0, "nj != 0");
/* Constant values. */
rect.w = face->w;
rect.h = face->h;
/* 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,
"Surface comparison (surface_compare).");
/* Clean up. */
SDL_FreeSurface( face );
}