/**

* Original code: automated SDL surface test written by Edgar Simo "bobbens"

* Adapted/rewritten for test lib by Andreas Schiffler

*/

/* Suppress C4996 VS compiler warnings for unlink() */

#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_DEPRECATE)

#define _CRT_SECURE_NO_DEPRECATE

#endif

#if defined(_MSC_VER) && !defined(_CRT_NONSTDC_NO_DEPRECATE)

#define _CRT_NONSTDC_NO_DEPRECATE

#endif

#include <stdio.h>

#ifndef _MSC_VER

#include <unistd.h>

#endif

#include <sys/stat.h>

#include <SDL3/SDL.h>

#include <SDL3/SDL_test.h>

#include "testautomation_suites.h"

#include "testautomation_images.h"

/* ================= Test Case Implementation ================== */

/* Shared test surface */

static SDL_Surface *referenceSurface = NULL;

static SDL_Surface *testSurface = NULL;

/* Fixture */

/* Create a 32-bit writable surface for blitting tests */

static void surfaceSetUp(void *arg)

{

int result;

SDL_BlendMode blendMode = SDL_BLENDMODE_NONE;

SDL_BlendMode currentBlendMode;

referenceSurface = SDLTest_ImageBlit(); /* For size info */

testSurface = SDL_CreateSurface(referenceSurface->w, referenceSurface->h, SDL_PIXELFORMAT_RGBA32);

SDLTest_AssertCheck(testSurface != NULL, "Check that testSurface is not NULL");

if (testSurface != NULL) {

/* Disable blend mode for target surface */

result = SDL_SetSurfaceBlendMode(testSurface, blendMode);

SDLTest_AssertCheck(result == 0, "Validate result from SDL_SetSurfaceBlendMode, expected: 0, got: %i", result);

result = SDL_GetSurfaceBlendMode(testSurface, &currentBlendMode);

SDLTest_AssertCheck(result == 0, "Validate result from SDL_GetSurfaceBlendMode, expected: 0, got: %i", result);

SDLTest_AssertCheck(currentBlendMode == blendMode, "Validate blendMode, expected: %i, got: %i", blendMode, currentBlendMode);

}

}

static void surfaceTearDown(void *arg)

{

SDL_DestroySurface(referenceSurface);

referenceSurface = NULL;

SDL_DestroySurface(testSurface);

testSurface = NULL;

}

/**

* Helper that clears the test surface

*/

static void clearTestSurface(void)

{

int ret;

Uint32 color;

/* Clear surface. */

color = SDL_MapRGBA(testSurface->format, 0, 0, 0, 0);

SDLTest_AssertPass("Call to SDL_MapRGBA()");

ret = SDL_FillSurfaceRect(testSurface, NULL, color);

SDLTest_AssertPass("Call to SDL_FillSurfaceRect()");

SDLTest_AssertCheck(ret == 0, "Verify result from SDL_FillSurfaceRect, expected: 0, got: %i", ret);

}

/**

* Helper that blits in a specific blend mode, -1 for basic blitting, -2 for color mod, -3 for alpha mod, -4 for mixed blend modes.

*/

static void testBlitBlendMode(int mode)

{

int ret;

int i, j, ni, nj;

SDL_Surface *face;

SDL_Rect rect;

int nmode;

SDL_BlendMode bmode;

int checkFailCount1;

int checkFailCount2;

int checkFailCount3;

int checkFailCount4;

/* Check test surface */

SDLTest_AssertCheck(testSurface != NULL, "Verify testSurface is not NULL");

if (testSurface == NULL) {

return;

}

/* Create sample surface */

face = SDLTest_ImageFace();

SDLTest_AssertCheck(face != NULL, "Verify face surface is not NULL");

if (face == NULL) {

return;

}

/* Reset alpha modulation */

ret = SDL_SetSurfaceAlphaMod(face, 255);

SDLTest_AssertPass("Call to SDL_SetSurfaceAlphaMod()");

SDLTest_AssertCheck(ret == 0, "Verify result from SDL_SetSurfaceAlphaMod(), expected: 0, got: %i", ret);

/* Reset color modulation */

ret = SDL_SetSurfaceColorMod(face, 255, 255, 255);

SDLTest_AssertPass("Call to SDL_SetSurfaceColorMod()");

SDLTest_AssertCheck(ret == 0, "Verify result from SDL_SetSurfaceColorMod(), expected: 0, got: %i", ret);

/* Reset color key */

ret = SDL_SetSurfaceColorKey(face, SDL_FALSE, 0);

SDLTest_AssertPass("Call to SDL_SetSurfaceColorKey()");

SDLTest_AssertCheck(ret == 0, "Verify result from SDL_SetSurfaceColorKey(), expected: 0, got: %i", ret);

/* Clear the test surface */

clearTestSurface();

/* Target rect size */

rect.w = face->w;

rect.h = face->h;

/* Steps to take */

ni = testSurface->w - face->w;

nj = testSurface->h - face->h;

/* Optionally set blend mode. */

if (mode >= 0) {

ret = SDL_SetSurfaceBlendMode(face, (SDL_BlendMode)mode);

SDLTest_AssertPass("Call to SDL_SetSurfaceBlendMode()");

SDLTest_AssertCheck(ret == 0, "Verify result from SDL_SetSurfaceBlendMode(..., %i), expected: 0, got: %i", mode, ret);

}

/* Test blend mode. */

checkFailCount1 = 0;

checkFailCount2 = 0;

checkFailCount3 = 0;

checkFailCount4 = 0;

for (j = 0; j <= nj; j = 4) {

for (i = 0; i <= ni; i = 4) {

if (mode == -2) {

/* Set color mod. */

ret = SDL_SetSurfaceColorMod(face, (255 / nj) * j, (255 / ni) * i, (255 / nj) * j);

if (ret != 0) {

checkFailCount2 ;

}

} else if (mode == -3) {

/* Set alpha mod. */

ret = SDL_SetSurfaceAlphaMod(face, (255 / ni) * i);

if (ret != 0) {

checkFailCount3 ;

}

} else if (mode == -4) {

/* Crazy blending mode magic. */

nmode = (i / 4 * j / 4) % 4;

if (nmode == 0) {

bmode = SDL_BLENDMODE_NONE;

} else if (nmode == 1) {

bmode = SDL_BLENDMODE_BLEND;

} else if (nmode == 2) {

bmode = SDL_BLENDMODE_ADD;

} else if (nmode == 3) {

bmode = SDL_BLENDMODE_MOD;

} else {

/* Should be impossible, but some static checkers are too imprecise and will complain */

SDLTest_LogError("Invalid: nmode=%d", nmode);

return;

}

ret = SDL_SetSurfaceBlendMode(face, bmode);

if (ret != 0) {

checkFailCount4 ;

}

}

/* Blitting. */

rect.x = i;

rect.y = j;

ret = SDL_BlitSurface(face, NULL, testSurface, &rect);

if (ret != 0) {

checkFailCount1 ;

}

}

}

SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_BlitSurface, expected: 0, got: %i", checkFailCount1);

SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_SetSurfaceColorMod, expected: 0, got: %i", checkFailCount2);

SDLTest_AssertCheck(checkFailCount3 == 0, "Validate results from calls to SDL_SetSurfaceAlphaMod, expected: 0, got: %i", checkFailCount3);

SDLTest_AssertCheck(checkFailCount4 == 0, "Validate results from calls to SDL_SetSurfaceBlendMode, expected: 0, got: %i", checkFailCount4);

/* Clean up */

SDL_DestroySurface(face);

face = NULL;

}

/* Helper to check that a file exists */

static void AssertFileExist(const char *filename)

{

struct stat st;

int ret = stat(filename, &st);

SDLTest_AssertCheck(ret == 0, "Verify file '%s' exists", filename);

}

/* Test case functions */

/**

* Tests sprite saving and loading

*/

static int surface_testSaveLoadBitmap(void *arg)

{

int ret;

const char *sampleFilename = "testSaveLoadBitmap.bmp";

SDL_Surface *face;

SDL_Surface *rface;

/* Create sample surface */

face = SDLTest_ImageFace();

SDLTest_AssertCheck(face != NULL, "Verify face surface is not NULL");

if (face == NULL) {

return TEST_ABORTED;

}

/* Delete test file; ignore errors */

unlink(sampleFilename);

/* Save a surface */

ret = SDL_SaveBMP(face, sampleFilename);

SDLTest_AssertPass("Call to SDL_SaveBMP()");

SDLTest_AssertCheck(ret == 0, "Verify result from SDL_SaveBMP, expected: 0, got: %i", ret);

AssertFileExist(sampleFilename);

/* Load a surface */

rface = SDL_LoadBMP(sampleFilename);

SDLTest_AssertPass("Call to SDL_LoadBMP()");

SDLTest_AssertCheck(rface != NULL, "Verify result from SDL_LoadBMP is not NULL");

if (rface != NULL) {

SDLTest_AssertCheck(face->w == rface->w, "Verify width of loaded surface, expected: %i, got: %i", face->w, rface->w);

SDLTest_AssertCheck(face->h == rface->h, "Verify height of loaded surface, expected: %i, got: %i", face->h, rface->h);

}

/* Delete test file; ignore errors */

unlink(sampleFilename);

/* Clean up */

SDL_DestroySurface(face);

face = NULL;

SDL_DestroySurface(rface);

rface = NULL;

return TEST_COMPLETED;

}

/**

* Tests surface conversion.

*/

static int surface_testSurfaceConversion(void *arg)

{

SDL_Surface *rface = NULL, *face = NULL;

int ret = 0;

/* Create sample surface */

face = SDLTest_ImageFace();

SDLTest_AssertCheck(face != NULL, "Verify face surface is not NULL");

if (face == NULL) {

return TEST_ABORTED;

}

/* Set transparent pixel as the pixel at (0,0) */

if (face->format->palette) {

ret = SDL_SetSurfaceColorKey(face, SDL_RLEACCEL, *(Uint8 *)face->pixels);

SDLTest_AssertPass("Call to SDL_SetSurfaceColorKey()");

SDLTest_AssertCheck(ret == 0, "Verify result from SDL_SetSurfaceColorKey, expected: 0, got: %i", ret);

}

/* Convert to 32 bit to compare. */

rface = SDL_ConvertSurface(face, testSurface->format);

SDLTest_AssertPass("Call to SDL_ConvertSurface()");

SDLTest_AssertCheck(rface != NULL, "Verify result from SDL_ConvertSurface is not NULL");

/* Compare surface. */

ret = SDLTest_CompareSurfaces(rface, face, 0);

SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);

/* Clean up. */

SDL_DestroySurface(face);

face = NULL;

SDL_DestroySurface(rface);

rface = NULL;

return TEST_COMPLETED;

}

/**

* Tests surface conversion across all pixel formats.

*/

static int surface_testCompleteSurfaceConversion(void *arg)

{

Uint32 pixel_formats[] = {

SDL_PIXELFORMAT_INDEX8,

SDL_PIXELFORMAT_RGB332,

SDL_PIXELFORMAT_RGB444,

SDL_PIXELFORMAT_BGR444,

SDL_PIXELFORMAT_RGB555,

SDL_PIXELFORMAT_BGR555,

SDL_PIXELFORMAT_ARGB4444,

SDL_PIXELFORMAT_RGBA4444,

SDL_PIXELFORMAT_ABGR4444,

SDL_PIXELFORMAT_BGRA4444,

SDL_PIXELFORMAT_ARGB1555,

SDL_PIXELFORMAT_RGBA5551,

SDL_PIXELFORMAT_ABGR1555,

SDL_PIXELFORMAT_BGRA5551,

SDL_PIXELFORMAT_RGB565,

SDL_PIXELFORMAT_BGR565,

SDL_PIXELFORMAT_RGB24,

SDL_PIXELFORMAT_BGR24,

SDL_PIXELFORMAT_XRGB8888,

SDL_PIXELFORMAT_RGBX8888,

SDL_PIXELFORMAT_XBGR8888,

SDL_PIXELFORMAT_BGRX8888,

SDL_PIXELFORMAT_ARGB8888,

SDL_PIXELFORMAT_RGBA8888,

SDL_PIXELFORMAT_ABGR8888,

SDL_PIXELFORMAT_BGRA8888,

SDL_PIXELFORMAT_XRGB2101010,

SDL_PIXELFORMAT_XBGR2101010,

SDL_PIXELFORMAT_ARGB2101010,

SDL_PIXELFORMAT_ABGR2101010,

};

SDL_Surface *face = NULL, *cvt1, *cvt2, *final;

SDL_PixelFormat *fmt1, *fmt2;

int i, j, ret = 0;

/* Create sample surface */

face = SDLTest_ImageFace();

SDLTest_AssertCheck(face != NULL, "Verify face surface is not NULL");

if (face == NULL) {

return TEST_ABORTED;

}

/* Set transparent pixel as the pixel at (0,0) */

if (face->format->palette) {

ret = SDL_SetSurfaceColorKey(face, SDL_RLEACCEL, *(Uint8 *)face->pixels);

SDLTest_AssertPass("Call to SDL_SetSurfaceColorKey()");

SDLTest_AssertCheck(ret == 0, "Verify result from SDL_SetSurfaceColorKey, expected: 0, got: %i", ret);

}

for (i = 0; i < SDL_arraysize(pixel_formats); i) {

for (j = 0; j < SDL_arraysize(pixel_formats); j) {

fmt1 = SDL_CreatePixelFormat(pixel_formats[i]);

SDL_assert(fmt1 != NULL);

cvt1 = SDL_ConvertSurface(face, fmt1);

SDL_assert(cvt1 != NULL);

fmt2 = SDL_CreatePixelFormat(pixel_formats[j]);

SDL_assert(fmt1 != NULL);

cvt2 = SDL_ConvertSurface(cvt1, fmt2);

SDL_assert(cvt2 != NULL);

if (fmt1->BytesPerPixel == face->format->BytesPerPixel &&

fmt2->BytesPerPixel == face->format->BytesPerPixel &&

(fmt1->Amask != 0) == (face->format->Amask != 0) &&

(fmt2->Amask != 0) == (face->format->Amask != 0)) {

final = SDL_ConvertSurface(cvt2, face->format);

SDL_assert(final != NULL);

/* Compare surface. */

ret = SDLTest_CompareSurfaces(face, final, 0);

SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);

SDL_DestroySurface(final);

}

SDL_DestroySurface(cvt1);

SDL_DestroyPixelFormat(fmt1);

SDL_DestroySurface(cvt2);

SDL_DestroyPixelFormat(fmt2);

}

}

/* Clean up. */

SDL_DestroySurface(face);

return TEST_COMPLETED;

}

/**

* Tests sprite loading. A failure case.

*/

static int surface_testLoadFailure(void *arg)

{

SDL_Surface *face = SDL_LoadBMP("nonexistant.bmp");

SDLTest_AssertCheck(face == NULL, "SDL_CreateLoadBmp");

return TEST_COMPLETED;

}

/**

* Tests some blitting routines.

*/

static int surface_testBlit(void *arg)

{

int ret;

SDL_Surface *compareSurface;

/* Basic blitting */

testBlitBlendMode(-1);

/* Verify result by comparing surfaces */

compareSurface = SDLTest_ImageBlit();

ret = SDLTest_CompareSurfaces(testSurface, compareSurface, 0);

SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);

/* Clean up. */

SDL_DestroySurface(compareSurface);

return TEST_COMPLETED;

}

/**

* Tests some blitting routines with color mod

*/

static int surface_testBlitColorMod(void *arg)

{

int ret;

SDL_Surface *compareSurface;

/* Basic blitting with color mod */

testBlitBlendMode(-2);

/* Verify result by comparing surfaces */

compareSurface = SDLTest_ImageBlitColor();

ret = SDLTest_CompareSurfaces(testSurface, compareSurface, 0);

SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);

/* Clean up. */

SDL_DestroySurface(compareSurface);

return TEST_COMPLETED;

}

/**

* Tests some blitting routines with alpha mod

*/

static int surface_testBlitAlphaMod(void *arg)

{

int ret;

SDL_Surface *compareSurface;

/* Basic blitting with alpha mod */

testBlitBlendMode(-3);

/* Verify result by comparing surfaces */

compareSurface = SDLTest_ImageBlitAlpha();

ret = SDLTest_CompareSurfaces(testSurface, compareSurface, 0);

SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);

/* Clean up. */

SDL_DestroySurface(compareSurface);

return TEST_COMPLETED;

}

/**

* Tests some more blitting routines.

*/

static int surface_testBlitBlendNone(void *arg)

{

int ret;

SDL_Surface *compareSurface;

/* Basic blitting */

testBlitBlendMode(SDL_BLENDMODE_NONE);

/* Verify result by comparing surfaces */

compareSurface = SDLTest_ImageBlitBlendNone();

ret = SDLTest_CompareSurfaces(testSurface, compareSurface, 0);

SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);

/* Clean up. */

SDL_DestroySurface(compareSurface);

return TEST_COMPLETED;

}

/**

* Tests some more blitting routines.

*/

static int surface_testBlitBlendBlend(void *arg)

{

int ret;

SDL_Surface *compareSurface;

/* Blend blitting */

testBlitBlendMode(SDL_BLENDMODE_BLEND);

/* Verify result by comparing surfaces */

compareSurface = SDLTest_ImageBlitBlend();

ret = SDLTest_CompareSurfaces(testSurface, compareSurface, 0);

SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);

/* Clean up. */

SDL_DestroySurface(compareSurface);

return TEST_COMPLETED;

}

/**

* Tests some more blitting routines.

*/

static int surface_testBlitBlendAdd(void *arg)

{

int ret;

SDL_Surface *compareSurface;

/* Add blitting */

testBlitBlendMode(SDL_BLENDMODE_ADD);

/* Verify result by comparing surfaces */

compareSurface = SDLTest_ImageBlitBlendAdd();

ret = SDLTest_CompareSurfaces(testSurface, compareSurface, 0);

SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);

/* Clean up. */

SDL_DestroySurface(compareSurface);

return TEST_COMPLETED;

}

/**

* Tests some more blitting routines.

*/

static int surface_testBlitBlendMod(void *arg)

{

int ret;

SDL_Surface *compareSurface;

/* Mod blitting */

testBlitBlendMode(SDL_BLENDMODE_MOD);

/* Verify result by comparing surfaces */

compareSurface = SDLTest_ImageBlitBlendMod();

ret = SDLTest_CompareSurfaces(testSurface, compareSurface, 0);

SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);

/* Clean up. */

SDL_DestroySurface(compareSurface);

return TEST_COMPLETED;

}

/**

* Tests some more blitting routines with loop

*/

static int surface_testBlitBlendLoop(void *arg)

{

int ret;

SDL_Surface *compareSurface;

/* All blitting modes */

testBlitBlendMode(-4);

/* Verify result by comparing surfaces */

compareSurface = SDLTest_ImageBlitBlendAll();

ret = SDLTest_CompareSurfaces(testSurface, compareSurface, 0);

SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);

/* Clean up. */

SDL_DestroySurface(compareSurface);

return TEST_COMPLETED;

}

static int surface_testOverflow(void *arg)

{

char buf[1024];

const char *expectedError;

SDL_Surface *surface;

SDL_memset(buf, '\0', sizeof(buf));

expectedError = "Parameter 'width' is invalid";

surface = SDL_CreateSurface(-3, 100, SDL_PIXELFORMAT_INDEX8);

SDLTest_AssertCheck(surface == NULL, "Should detect negative width");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(buf, -1, 1, 4, SDL_PIXELFORMAT_INDEX8);

SDLTest_AssertCheck(surface == NULL, "Should detect negative width");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(buf, -1, 1, 4, SDL_PIXELFORMAT_RGBA8888);

SDLTest_AssertCheck(surface == NULL, "Should detect negative width");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

expectedError = "Parameter 'height' is invalid";

surface = SDL_CreateSurface(100, -3, SDL_PIXELFORMAT_INDEX8);

SDLTest_AssertCheck(surface == NULL, "Should detect negative height");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(buf, 1, -1, 4, SDL_PIXELFORMAT_INDEX8);

SDLTest_AssertCheck(surface == NULL, "Should detect negative height");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(buf, 1, -1, 4, SDL_PIXELFORMAT_RGBA8888);

SDLTest_AssertCheck(surface == NULL, "Should detect negative height");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

expectedError = "Parameter 'pitch' is invalid";

surface = SDL_CreateSurfaceFrom(buf, 4, 1, -1, SDL_PIXELFORMAT_INDEX8);

SDLTest_AssertCheck(surface == NULL, "Should detect negative pitch");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(buf, 1, 1, -1, SDL_PIXELFORMAT_RGBA8888);

SDLTest_AssertCheck(surface == NULL, "Should detect negative pitch");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(buf, 1, 1, 0, SDL_PIXELFORMAT_RGBA8888);

SDLTest_AssertCheck(surface == NULL, "Should detect zero pitch");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(NULL, 1, 1, 0, SDL_PIXELFORMAT_RGBA8888);

SDLTest_AssertCheck(surface != NULL, "Allow zero pitch for partially set up surfaces: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

/* Less than 1 byte per pixel: the pitch can legitimately be less than

* the width, but it must be enough to hold the appropriate number of

* bits per pixel. SDL_PIXELFORMAT_INDEX4LSB* needs 1 byte per 2 pixels. */

surface = SDL_CreateSurfaceFrom(buf, 6, 1, 3, SDL_PIXELFORMAT_INDEX4LSB);

SDLTest_AssertCheck(surface != NULL, "6px * 4 bits per px fits in 3 bytes: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

surface = SDL_CreateSurfaceFrom(buf, 6, 1, 3, SDL_PIXELFORMAT_INDEX4LSB);

SDLTest_AssertCheck(surface != NULL, "6px * 4 bits per px fits in 3 bytes: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

surface = SDL_CreateSurfaceFrom(buf, 7, 1, 3, SDL_PIXELFORMAT_INDEX4LSB);

SDLTest_AssertCheck(surface == NULL, "Should detect pitch < width * bpp");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(buf, 7, 1, 3, SDL_PIXELFORMAT_INDEX4LSB);

SDLTest_AssertCheck(surface == NULL, "Should detect pitch < width * bpp");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(buf, 7, 1, 4, SDL_PIXELFORMAT_INDEX4LSB);

SDLTest_AssertCheck(surface != NULL, "7px * 4 bits per px fits in 4 bytes: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

surface = SDL_CreateSurfaceFrom(buf, 7, 1, 4, SDL_PIXELFORMAT_INDEX4LSB);

SDLTest_AssertCheck(surface != NULL, "7px * 4 bits per px fits in 4 bytes: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

/* SDL_PIXELFORMAT_INDEX1* needs 1 byte per 8 pixels. */

surface = SDL_CreateSurfaceFrom(buf, 16, 1, 2, SDL_PIXELFORMAT_INDEX1LSB);

SDLTest_AssertCheck(surface != NULL, "16px * 1 bit per px fits in 2 bytes: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

surface = SDL_CreateSurfaceFrom(buf, 16, 1, 2, SDL_PIXELFORMAT_INDEX1LSB);

SDLTest_AssertCheck(surface != NULL, "16px * 1 bit per px fits in 2 bytes: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

surface = SDL_CreateSurfaceFrom(buf, 17, 1, 2, SDL_PIXELFORMAT_INDEX1LSB);

SDLTest_AssertCheck(surface == NULL, "Should detect pitch < width * bpp");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(buf, 17, 1, 2, SDL_PIXELFORMAT_INDEX1LSB);

SDLTest_AssertCheck(surface == NULL, "Should detect pitch < width * bpp");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(buf, 17, 1, 3, SDL_PIXELFORMAT_INDEX1LSB);

SDLTest_AssertCheck(surface != NULL, "17px * 1 bit per px fits in 3 bytes: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

surface = SDL_CreateSurfaceFrom(buf, 17, 1, 3, SDL_PIXELFORMAT_INDEX1LSB);

SDLTest_AssertCheck(surface != NULL, "17px * 1 bit per px fits in 3 bytes: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

/* SDL_PIXELFORMAT_INDEX8 and SDL_PIXELFORMAT_RGB332 require 1 byte per pixel. */

surface = SDL_CreateSurfaceFrom(buf, 5, 1, 5, SDL_PIXELFORMAT_RGB332);

SDLTest_AssertCheck(surface != NULL, "5px * 8 bits per px fits in 5 bytes: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

surface = SDL_CreateSurfaceFrom(buf, 5, 1, 5, SDL_PIXELFORMAT_INDEX8);

SDLTest_AssertCheck(surface != NULL, "5px * 8 bits per px fits in 5 bytes: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

surface = SDL_CreateSurfaceFrom(buf, 6, 1, 5, SDL_PIXELFORMAT_RGB332);

SDLTest_AssertCheck(surface == NULL, "Should detect pitch < width * bpp");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(buf, 6, 1, 5, SDL_PIXELFORMAT_INDEX8);

SDLTest_AssertCheck(surface == NULL, "Should detect pitch < width * bpp");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

/* Everything else requires more than 1 byte per pixel, and rounds up

* each pixel to an integer number of bytes (e.g. RGB555 is really

* XRGB1555, with 1 bit per pixel wasted). */

surface = SDL_CreateSurfaceFrom(buf, 3, 1, 6, SDL_PIXELFORMAT_RGB555);

SDLTest_AssertCheck(surface != NULL, "3px * 15 (really 16) bits per px fits in 6 bytes: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

surface = SDL_CreateSurfaceFrom(buf, 3, 1, 6, SDL_PIXELFORMAT_RGB555);

SDLTest_AssertCheck(surface != NULL, "5px * 15 (really 16) bits per px fits in 6 bytes: %s",

surface != NULL ? "(success)" : SDL_GetError());

SDL_DestroySurface(surface);

surface = SDL_CreateSurfaceFrom(buf, 4, 1, 6, SDL_PIXELFORMAT_RGB555);

SDLTest_AssertCheck(surface == NULL, "4px * 15 (really 16) bits per px doesn't fit in 6 bytes");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurfaceFrom(buf, 4, 1, 6, SDL_PIXELFORMAT_XRGB1555);

SDLTest_AssertCheck(surface == NULL, "4px * 15 (really 16) bits per px doesn't fit in 6 bytes");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

if (sizeof(size_t) == 4 && sizeof(int) >= 4) {

expectedError = "Out of memory";

surface = SDL_CreateSurface(SDL_MAX_SINT32, 1, SDL_PIXELFORMAT_INDEX8);

SDLTest_AssertCheck(surface == NULL, "Should detect overflow in width alignment");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurface(SDL_MAX_SINT32 / 2, 1, SDL_PIXELFORMAT_ARGB8888);

SDLTest_AssertCheck(surface == NULL, "Should detect overflow in width * bytes per pixel");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurface((1 << 29) - 1, (1 << 29) - 1, SDL_PIXELFORMAT_INDEX8);

SDLTest_AssertCheck(surface == NULL, "Should detect overflow in width * height");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

surface = SDL_CreateSurface((1 << 15) 1, (1 << 15) 1, SDL_PIXELFORMAT_ARGB8888);

SDLTest_AssertCheck(surface == NULL, "Should detect overflow in width * height * bytes per pixel");

SDLTest_AssertCheck(SDL_strcmp(SDL_GetError(), expectedError) == 0,

"Expected \"%s\", got \"%s\"", expectedError, SDL_GetError());

} else {

SDLTest_Log("Can't easily overflow size_t on this platform");

}

return TEST_COMPLETED;

}

/* ================= Test References ================== */

/* Surface test cases */

static const SDLTest_TestCaseReference surfaceTest1 = {

(SDLTest_TestCaseFp)surface_testSaveLoadBitmap, "surface_testSaveLoadBitmap", "Tests sprite saving and loading.", TEST_ENABLED

};

static const SDLTest_TestCaseReference surfaceTest2 = {

(SDLTest_TestCaseFp)surface_testBlit, "surface_testBlit", "Tests basic blitting.", TEST_ENABLED

};

static const SDLTest_TestCaseReference surfaceTest3 = {

(SDLTest_TestCaseFp)surface_testBlitBlendNone, "surface_testBlitBlendNone", "Tests blitting routines with none blending mode.", TEST_ENABLED

};

static const SDLTest_TestCaseReference surfaceTest4 = {

(SDLTest_TestCaseFp)surface_testLoadFailure, "surface_testLoadFailure", "Tests sprite loading. A failure case.", TEST_ENABLED

};

static const SDLTest_TestCaseReference surfaceTest5 = {

(SDLTest_TestCaseFp)surface_testSurfaceConversion, "surface_testSurfaceConversion", "Tests surface conversion.", TEST_ENABLED

};

static const SDLTest_TestCaseReference surfaceTest6 = {

(SDLTest_TestCaseFp)surface_testCompleteSurfaceConversion, "surface_testCompleteSurfaceConversion", "Tests surface conversion across all pixel formats", TEST_ENABLED

};

static const SDLTest_TestCaseReference surfaceTest7 = {

(SDLTest_TestCaseFp)surface_testBlitColorMod, "surface_testBlitColorMod", "Tests some blitting routines with color mod.", TEST_ENABLED

};

static const SDLTest_TestCaseReference surfaceTest8 = {

(SDLTest_TestCaseFp)surface_testBlitAlphaMod, "surface_testBlitAlphaMod", "Tests some blitting routines with alpha mod.", TEST_ENABLED

};

/* TODO: rewrite test case, define new test data and re-enable; current implementation fails */

static const SDLTest_TestCaseReference surfaceTest9 = {

(SDLTest_TestCaseFp)surface_testBlitBlendLoop, "surface_testBlitBlendLoop", "Test blitting routines with various blending modes", TEST_DISABLED

};

/* TODO: rewrite test case, define new test data and re-enable; current implementation fails */

static const SDLTest_TestCaseReference surfaceTest10 = {

(SDLTest_TestCaseFp)surface_testBlitBlendBlend, "surface_testBlitBlendBlend", "Tests blitting routines with blend blending mode.", TEST_DISABLED

};

/* TODO: rewrite test case, define new test data and re-enable; current implementation fails */

static const SDLTest_TestCaseReference surfaceTest11 = {

(SDLTest_TestCaseFp)surface_testBlitBlendAdd, "surface_testBlitBlendAdd", "Tests blitting routines with add blending mode.", TEST_DISABLED

};

static const SDLTest_TestCaseReference surfaceTest12 = {

(SDLTest_TestCaseFp)surface_testBlitBlendMod, "surface_testBlitBlendMod", "Tests blitting routines with mod blending mode.", TEST_ENABLED

};

static const SDLTest_TestCaseReference surfaceTestOverflow = {

surface_testOverflow, "surface_testOverflow", "Test overflow detection.", TEST_ENABLED

};

/* Sequence of Surface test cases */

static const SDLTest_TestCaseReference *surfaceTests[] = {

&surfaceTest1, &surfaceTest2, &surfaceTest3, &surfaceTest4, &surfaceTest5,

&surfaceTest6, &surfaceTest7, &surfaceTest8, &surfaceTest9, &surfaceTest10,

&surfaceTest11, &surfaceTest12, &surfaceTestOverflow, NULL

};

/* Surface test suite (global) */

SDLTest_TestSuiteReference surfaceTestSuite = {

"Surface",

surfaceSetUp,

surfaceTests,

surfaceTearDown

};