/
testautomation_render.c
1051 lines (881 loc) · 32.9 KB
/
testautomation_render.c
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/**
* Original code: automated SDL platform test written by Edgar Simo "bobbens"
* Extended and extensively updated by aschiffler at ferzkopp dot net
*/
#include <stdio.h>
#include "SDL.h"
#include "SDL_test.h"
/* ================= Test Case Implementation ================== */
#define TESTRENDER_SCREEN_W 80
#define TESTRENDER_SCREEN_H 60
#define RENDER_COMPARE_FORMAT SDL_PIXELFORMAT_ARGB8888
#define RENDER_COMPARE_AMASK 0xff000000 /**< Alpha bit mask. */
#define RENDER_COMPARE_RMASK 0x00ff0000 /**< Red bit mask. */
#define RENDER_COMPARE_GMASK 0x0000ff00 /**< Green bit mask. */
#define RENDER_COMPARE_BMASK 0x000000ff /**< Blue bit mask. */
#define ALLOWABLE_ERROR_OPAQUE 0
#define ALLOWABLE_ERROR_BLENDED 64
/* Test window and renderer */
SDL_Window *window = NULL;
SDL_Renderer *renderer = NULL;
/* Prototypes for helper functions */
static int _clearScreen (void);
static void _compare(SDL_Surface *reference, int allowable_error);
static int _hasTexAlpha(void);
static int _hasTexColor(void);
static SDL_Texture *_loadTestFace(void);
static int _hasBlendModes(void);
static int _hasDrawColor(void);
static int _isSupported(int code);
/**
* Create software renderer for tests
*/
void InitCreateRenderer(void *arg)
{
int posX = 100, posY = 100, width = 320, height = 240;
renderer = NULL;
window = SDL_CreateWindow("render_testCreateRenderer", posX, posY, width, height, 0);
SDLTest_AssertPass("SDL_CreateWindow()");
SDLTest_AssertCheck(window != NULL, "Check SDL_CreateWindow result");
if (window == NULL) {
return;
}
renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
SDLTest_AssertPass("SDL_CreateRenderer()");
SDLTest_AssertCheck(renderer != 0, "Check SDL_CreateRenderer result");
if (renderer == NULL) {
SDL_DestroyWindow(window);
return;
}
}
/*
* Destroy renderer for tests
*/
void CleanupDestroyRenderer(void *arg)
{
if (renderer != NULL) {
SDL_DestroyRenderer(renderer);
renderer = NULL;
SDLTest_AssertPass("SDL_DestroyRenderer()");
}
if (window != NULL) {
SDL_DestroyWindow(window);
window = NULL;
SDLTest_AssertPass("SDL_DestroyWindow");
}
}
/**
* @brief Tests call to SDL_GetNumRenderDrivers
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_GetNumRenderDrivers
*/
int
render_testGetNumRenderDrivers(void *arg)
{
int n;
n = SDL_GetNumRenderDrivers();
SDLTest_AssertCheck(n >= 1, "Number of renderers >= 1, reported as %i", n);
return TEST_COMPLETED;
}
/**
* @brief Tests the SDL primitives for rendering.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_SetRenderDrawColor
* http://wiki.libsdl.org/moin.cgi/SDL_RenderFillRect
* http://wiki.libsdl.org/moin.cgi/SDL_RenderDrawLine
*
*/
int render_testPrimitives (void *arg)
{
int ret;
int x, y;
SDL_Rect rect;
SDL_Surface *referenceSurface = NULL;
int checkFailCount1;
int checkFailCount2;
/* Need drawcolor or just skip test. */
SDLTest_AssertCheck(_hasDrawColor(), "_hasDrawColor");
/* Draw a rectangle. */
rect.x = 40;
rect.y = 0;
rect.w = 40;
rect.h = 80;
ret = SDL_SetRenderDrawColor(renderer, 13, 73, 200, SDL_ALPHA_OPAQUE );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
ret = SDL_RenderFillRect(renderer, &rect );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderFillRect, expected: 0, got: %i", ret);
/* Draw a rectangle. */
rect.x = 10;
rect.y = 10;
rect.w = 60;
rect.h = 40;
ret = SDL_SetRenderDrawColor(renderer, 200, 0, 100, SDL_ALPHA_OPAQUE );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
ret = SDL_RenderFillRect(renderer, &rect );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderFillRect, expected: 0, got: %i", ret);
/* Draw some points like so:
* X.X.X.X..
* .X.X.X.X.
* X.X.X.X.. */
checkFailCount1 = 0;
checkFailCount2 = 0;
for (y=0; y<3; y++) {
for (x = y % 2; x<TESTRENDER_SCREEN_W; x+=2) {
ret = SDL_SetRenderDrawColor(renderer, x*y, x*y/2, x*y/3, SDL_ALPHA_OPAQUE );
if (ret != 0) checkFailCount1++;
ret = SDL_RenderDrawPoint(renderer, x, y );
if (ret != 0) checkFailCount2++;
}
}
SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_SetRenderDrawColor, expected: 0, got: %i", checkFailCount1);
SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_RenderDrawPoint, expected: 0, got: %i", checkFailCount2);
/* Draw some lines. */
ret = SDL_SetRenderDrawColor(renderer, 0, 255, 0, SDL_ALPHA_OPAQUE );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor");
ret = SDL_RenderDrawLine(renderer, 0, 30, TESTRENDER_SCREEN_W, 30 );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderDrawLine, expected: 0, got: %i", ret);
ret = SDL_SetRenderDrawColor(renderer, 55, 55, 5, SDL_ALPHA_OPAQUE );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
ret = SDL_RenderDrawLine(renderer, 40, 30, 40, 60 );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderDrawLine, expected: 0, got: %i", ret);
ret = SDL_SetRenderDrawColor(renderer, 5, 105, 105, SDL_ALPHA_OPAQUE );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
ret = SDL_RenderDrawLine(renderer, 0, 0, 29, 29 );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderDrawLine, expected: 0, got: %i", ret);
ret = SDL_RenderDrawLine(renderer, 29, 30, 0, 59 );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderDrawLine, expected: 0, got: %i", ret);
ret = SDL_RenderDrawLine(renderer, 79, 0, 50, 29 );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderDrawLine, expected: 0, got: %i", ret);
ret = SDL_RenderDrawLine(renderer, 79, 59, 50, 30 );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderDrawLine, expected: 0, got: %i", ret);
/* See if it's the same. */
referenceSurface = SDLTest_ImagePrimitives();
_compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE );
/* Clean up. */
SDL_FreeSurface(referenceSurface);
referenceSurface = NULL;
return TEST_COMPLETED;
}
/**
* @brief Tests the SDL primitives with alpha for rendering.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_SetRenderDrawColor
* http://wiki.libsdl.org/moin.cgi/SDL_SetRenderDrawBlendMode
* http://wiki.libsdl.org/moin.cgi/SDL_RenderFillRect
*/
int render_testPrimitivesBlend (void *arg)
{
int ret;
int i, j;
SDL_Rect rect;
SDL_Surface *referenceSurface = NULL;
int checkFailCount1;
int checkFailCount2;
int checkFailCount3;
/* Need drawcolor and blendmode or just skip test. */
SDLTest_AssertCheck(_hasDrawColor(), "_hasDrawColor");
SDLTest_AssertCheck(_hasBlendModes(), "_hasBlendModes");
/* Create some rectangles for each blend mode. */
ret = SDL_SetRenderDrawColor(renderer, 255, 255, 255, 0 );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawBlendMode, expected: 0, got: %i", ret);
ret = SDL_RenderFillRect(renderer, NULL );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderFillRect, expected: 0, got: %i", ret);
rect.x = 10;
rect.y = 25;
rect.w = 40;
rect.h = 25;
ret = SDL_SetRenderDrawColor(renderer, 240, 10, 10, 75 );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_ADD );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawBlendMode, expected: 0, got: %i", ret);
ret = SDL_RenderFillRect(renderer, &rect );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderFillRect, expected: 0, got: %i", ret);
rect.x = 30;
rect.y = 40;
rect.w = 45;
rect.h = 15;
ret = SDL_SetRenderDrawColor(renderer, 10, 240, 10, 100 );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawBlendMode, expected: 0, got: %i", ret);
ret = SDL_RenderFillRect(renderer, &rect );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderFillRect, expected: 0, got: %i", ret);
rect.x = 25;
rect.y = 25;
rect.w = 25;
rect.h = 25;
ret = SDL_SetRenderDrawColor(renderer, 10, 10, 240, 125 );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawBlendMode, expected: 0, got: %i", ret);
ret = SDL_RenderFillRect(renderer, &rect );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderFillRect, expected: 0, got: %i", ret);
/* Draw blended lines, lines for everyone. */
checkFailCount1 = 0;
checkFailCount2 = 0;
checkFailCount3 = 0;
for (i=0; i<TESTRENDER_SCREEN_W; i+=2) {
ret = SDL_SetRenderDrawColor(renderer, 60+2*i, 240-2*i, 50, 3*i );
if (ret != 0) checkFailCount1++;
ret = SDL_SetRenderDrawBlendMode(renderer,(((i/2)%3)==0) ? SDL_BLENDMODE_BLEND :
(((i/2)%3)==1) ? SDL_BLENDMODE_ADD : SDL_BLENDMODE_NONE );
if (ret != 0) checkFailCount2++;
ret = SDL_RenderDrawLine(renderer, 0, 0, i, 59 );
if (ret != 0) checkFailCount3++;
}
SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_SetRenderDrawColor, expected: 0, got: %i", checkFailCount1);
SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_SetRenderDrawBlendMode, expected: 0, got: %i", checkFailCount2);
SDLTest_AssertCheck(checkFailCount3 == 0, "Validate results from calls to SDL_RenderDrawLine, expected: 0, got: %i", checkFailCount3);
checkFailCount1 = 0;
checkFailCount2 = 0;
checkFailCount3 = 0;
for (i=0; i<TESTRENDER_SCREEN_H; i+=2) {
ret = SDL_SetRenderDrawColor(renderer, 60+2*i, 240-2*i, 50, 3*i );
if (ret != 0) checkFailCount1++;
ret = SDL_SetRenderDrawBlendMode(renderer,(((i/2)%3)==0) ? SDL_BLENDMODE_BLEND :
(((i/2)%3)==1) ? SDL_BLENDMODE_ADD : SDL_BLENDMODE_NONE );
if (ret != 0) checkFailCount2++;
ret = SDL_RenderDrawLine(renderer, 0, 0, 79, i );
if (ret != 0) checkFailCount3++;
}
SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_SetRenderDrawColor, expected: 0, got: %i", checkFailCount1);
SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_SetRenderDrawBlendMode, expected: 0, got: %i", checkFailCount2);
SDLTest_AssertCheck(checkFailCount3 == 0, "Validate results from calls to SDL_RenderDrawLine, expected: 0, got: %i", checkFailCount3);
/* Draw points. */
checkFailCount1 = 0;
checkFailCount2 = 0;
checkFailCount3 = 0;
for (j=0; j<TESTRENDER_SCREEN_H; j+=3) {
for (i=0; i<TESTRENDER_SCREEN_W; i+=3) {
ret = SDL_SetRenderDrawColor(renderer, j*4, i*3, j*4, i*3 );
if (ret != 0) checkFailCount1++;
ret = SDL_SetRenderDrawBlendMode(renderer, ((((i+j)/3)%3)==0) ? SDL_BLENDMODE_BLEND :
((((i+j)/3)%3)==1) ? SDL_BLENDMODE_ADD : SDL_BLENDMODE_NONE );
if (ret != 0) checkFailCount2++;
ret = SDL_RenderDrawPoint(renderer, i, j );
if (ret != 0) checkFailCount3++;
}
}
SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_SetRenderDrawColor, expected: 0, got: %i", checkFailCount1);
SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_SetRenderDrawBlendMode, expected: 0, got: %i", checkFailCount2);
SDLTest_AssertCheck(checkFailCount3 == 0, "Validate results from calls to SDL_RenderDrawPoint, expected: 0, got: %i", checkFailCount3);
/* See if it's the same. */
referenceSurface = SDLTest_ImagePrimitivesBlend();
_compare(referenceSurface, ALLOWABLE_ERROR_BLENDED );
/* Clean up. */
SDL_FreeSurface(referenceSurface);
referenceSurface = NULL;
return TEST_COMPLETED;
}
/**
* @brief Tests some blitting routines.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_RenderCopy
* http://wiki.libsdl.org/moin.cgi/SDL_DestroyTexture
*/
int
render_testBlit(void *arg)
{
int ret;
SDL_Rect rect;
SDL_Texture *tface;
SDL_Surface *referenceSurface = NULL;
Uint32 tformat;
int taccess, tw, th;
int i, j, ni, nj;
int checkFailCount1;
/* Need drawcolor or just skip test. */
SDLTest_AssertCheck(_hasDrawColor(), "_hasDrawColor)");
/* Create face surface. */
tface = _loadTestFace();
SDLTest_AssertCheck(tface != NULL, "Verify _loadTestFace() result");
if (tface == NULL) {
return TEST_ABORTED;
}
/* Constant values. */
ret = SDL_QueryTexture(tface, &tformat, &taccess, &tw, &th);
SDLTest_AssertCheck(ret == 0, "Verify result from SDL_QueryTexture, expected 0, got %i", ret);
rect.w = tw;
rect.h = th;
ni = TESTRENDER_SCREEN_W - tw;
nj = TESTRENDER_SCREEN_H - th;
/* Loop blit. */
checkFailCount1 = 0;
for (j=0; j <= nj; j+=4) {
for (i=0; i <= ni; i+=4) {
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_RenderCopy(renderer, tface, NULL, &rect );
if (ret != 0) checkFailCount1++;
}
}
SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_RenderCopy, expected: 0, got: %i", checkFailCount1);
/* See if it's the same */
referenceSurface = SDLTest_ImageBlit();
_compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE );
/* Clean up. */
SDL_DestroyTexture( tface );
SDL_FreeSurface(referenceSurface);
referenceSurface = NULL;
return TEST_COMPLETED;
}
/**
* @brief Blits doing color tests.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_SetTextureColorMod
* http://wiki.libsdl.org/moin.cgi/SDL_RenderCopy
* http://wiki.libsdl.org/moin.cgi/SDL_DestroyTexture
*/
int
render_testBlitColor (void *arg)
{
int ret;
SDL_Rect rect;
SDL_Texture *tface;
SDL_Surface *referenceSurface = NULL;
Uint32 tformat;
int taccess, tw, th;
int i, j, ni, nj;
int checkFailCount1;
int checkFailCount2;
/* Create face surface. */
tface = _loadTestFace();
SDLTest_AssertCheck(tface != NULL, "Verify _loadTestFace() result");
if (tface == NULL) {
return TEST_ABORTED;
}
/* Constant values. */
ret = SDL_QueryTexture(tface, &tformat, &taccess, &tw, &th);
SDLTest_AssertCheck(ret == 0, "Verify result from SDL_QueryTexture, expected 0, got %i", ret);
rect.w = tw;
rect.h = th;
ni = TESTRENDER_SCREEN_W - tw;
nj = TESTRENDER_SCREEN_H - th;
/* Test blitting with color mod. */
checkFailCount1 = 0;
checkFailCount2 = 0;
for (j=0; j <= nj; j+=4) {
for (i=0; i <= ni; i+=4) {
/* Set color mod. */
ret = SDL_SetTextureColorMod( tface, (255/nj)*j, (255/ni)*i, (255/nj)*j );
if (ret != 0) checkFailCount1++;
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_RenderCopy(renderer, tface, NULL, &rect );
if (ret != 0) checkFailCount2++;
}
}
SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_SetTextureColorMod, expected: 0, got: %i", checkFailCount1);
SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_RenderCopy, expected: 0, got: %i", checkFailCount2);
/* See if it's the same. */
referenceSurface = SDLTest_ImageBlitColor();
_compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE );
/* Clean up. */
SDL_DestroyTexture( tface );
SDL_FreeSurface(referenceSurface);
referenceSurface = NULL;
return TEST_COMPLETED;
}
/**
* @brief Tests blitting with alpha.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_SetTextureAlphaMod
* http://wiki.libsdl.org/moin.cgi/SDL_RenderCopy
* http://wiki.libsdl.org/moin.cgi/SDL_DestroyTexture
*/
int
render_testBlitAlpha (void *arg)
{
int ret;
SDL_Rect rect;
SDL_Texture *tface;
SDL_Surface *referenceSurface = NULL;
Uint32 tformat;
int taccess, tw, th;
int i, j, ni, nj;
int checkFailCount1;
int checkFailCount2;
/* Need alpha or just skip test. */
SDLTest_AssertCheck(_hasTexAlpha(), "_hasTexAlpha");
/* Create face surface. */
tface = _loadTestFace();
SDLTest_AssertCheck(tface != NULL, "Verify _loadTestFace() result");
if (tface == NULL) {
return TEST_ABORTED;
}
/* Constant values. */
ret = SDL_QueryTexture(tface, &tformat, &taccess, &tw, &th);
SDLTest_AssertCheck(ret == 0, "Verify result from SDL_QueryTexture, expected 0, got %i", ret);
rect.w = tw;
rect.h = th;
ni = TESTRENDER_SCREEN_W - tw;
nj = TESTRENDER_SCREEN_H - th;
/* Test blitting with alpha mod. */
checkFailCount1 = 0;
checkFailCount2 = 0;
for (j=0; j <= nj; j+=4) {
for (i=0; i <= ni; i+=4) {
/* Set alpha mod. */
ret = SDL_SetTextureAlphaMod( tface, (255/ni)*i );
if (ret != 0) checkFailCount1++;
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_RenderCopy(renderer, tface, NULL, &rect );
if (ret != 0) checkFailCount2++;
}
}
SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_SetTextureAlphaMod, expected: 0, got: %i", checkFailCount1);
SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_RenderCopy, expected: 0, got: %i", checkFailCount2);
/* See if it's the same. */
referenceSurface = SDLTest_ImageBlitAlpha();
_compare(referenceSurface, ALLOWABLE_ERROR_BLENDED );
/* Clean up. */
SDL_DestroyTexture( tface );
SDL_FreeSurface(referenceSurface);
referenceSurface = NULL;
return TEST_COMPLETED;
}
/* Helper functions */
/**
* @brief Tests a blend mode.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_SetTextureBlendMode
* http://wiki.libsdl.org/moin.cgi/SDL_RenderCopy
*/
static void
_testBlitBlendMode( SDL_Texture * tface, int mode )
{
int ret;
Uint32 tformat;
int taccess, tw, th;
int i, j, ni, nj;
SDL_Rect rect;
int checkFailCount1;
int checkFailCount2;
/* Clear surface. */
_clearScreen();
/* Constant values. */
ret = SDL_QueryTexture(tface, &tformat, &taccess, &tw, &th);
SDLTest_AssertCheck(ret == 0, "Verify result from SDL_QueryTexture, expected 0, got %i", ret);
rect.w = tw;
rect.h = th;
ni = TESTRENDER_SCREEN_W - tw;
nj = TESTRENDER_SCREEN_H - th;
/* Test blend mode. */
checkFailCount1 = 0;
checkFailCount2 = 0;
for (j=0; j <= nj; j+=4) {
for (i=0; i <= ni; i+=4) {
/* Set blend mode. */
ret = SDL_SetTextureBlendMode( tface, (SDL_BlendMode)mode );
if (ret != 0) checkFailCount1++;
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_RenderCopy(renderer, tface, NULL, &rect );
if (ret != 0) checkFailCount2++;
}
}
SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_SetTextureBlendMode, expected: 0, got: %i", checkFailCount1);
SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_RenderCopy, expected: 0, got: %i", checkFailCount2);
}
/**
* @brief Tests some more blitting routines.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_SetTextureColorMod
* http://wiki.libsdl.org/moin.cgi/SDL_SetTextureAlphaMod
* http://wiki.libsdl.org/moin.cgi/SDL_SetTextureBlendMode
* http://wiki.libsdl.org/moin.cgi/SDL_DestroyTexture
*/
int
render_testBlitBlend (void *arg)
{
int ret;
SDL_Rect rect;
SDL_Texture *tface;
SDL_Surface *referenceSurface = NULL;
Uint32 tformat;
int taccess, tw, th;
int i, j, ni, nj;
int mode;
int checkFailCount1;
int checkFailCount2;
int checkFailCount3;
int checkFailCount4;
SDLTest_AssertCheck(_hasBlendModes(), "_hasBlendModes");
SDLTest_AssertCheck(_hasTexColor(), "_hasTexColor");
SDLTest_AssertCheck(_hasTexAlpha(), "_hasTexAlpha");
/* Create face surface. */
tface = _loadTestFace();
SDLTest_AssertCheck(tface != NULL, "Verify _loadTestFace() result");
if (tface == NULL) {
return TEST_ABORTED;
}
/* Constant values. */
ret = SDL_QueryTexture(tface, &tformat, &taccess, &tw, &th);
SDLTest_AssertCheck(ret == 0, "Verify result from SDL_QueryTexture, expected 0, got %i", ret);
rect.w = tw;
rect.h = th;
ni = TESTRENDER_SCREEN_W - tw;
nj = TESTRENDER_SCREEN_H - th;
/* Set alpha mod. */
ret = SDL_SetTextureAlphaMod( tface, 100 );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetTextureAlphaMod, expected: 0, got: %i", ret);
/* Test None. */
_testBlitBlendMode( tface, SDL_BLENDMODE_NONE );
referenceSurface = SDLTest_ImageBlitBlendNone();
_compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE );
SDL_FreeSurface(referenceSurface);
referenceSurface = NULL;
/* Test Blend. */
_testBlitBlendMode( tface, SDL_BLENDMODE_BLEND );
referenceSurface = SDLTest_ImageBlitBlend();
_compare(referenceSurface, ALLOWABLE_ERROR_BLENDED );
SDL_FreeSurface(referenceSurface);
referenceSurface = NULL;
/* Test Add. */
_testBlitBlendMode( tface, SDL_BLENDMODE_ADD );
referenceSurface = SDLTest_ImageBlitBlendAdd();
_compare(referenceSurface, ALLOWABLE_ERROR_BLENDED );
SDL_FreeSurface(referenceSurface);
referenceSurface = NULL;
/* Test Mod. */
_testBlitBlendMode( tface, SDL_BLENDMODE_MOD);
referenceSurface = SDLTest_ImageBlitBlendMod();
_compare(referenceSurface, ALLOWABLE_ERROR_BLENDED );
SDL_FreeSurface(referenceSurface);
referenceSurface = NULL;
/* Clear surface. */
_clearScreen();
/* Loop blit. */
checkFailCount1 = 0;
checkFailCount2 = 0;
checkFailCount3 = 0;
checkFailCount4 = 0;
for (j=0; j <= nj; j+=4) {
for (i=0; i <= ni; i+=4) {
/* Set color mod. */
ret = SDL_SetTextureColorMod( tface, (255/nj)*j, (255/ni)*i, (255/nj)*j );
if (ret != 0) checkFailCount1++;
/* Set alpha mod. */
ret = SDL_SetTextureAlphaMod( tface, (100/ni)*i );
if (ret != 0) checkFailCount2++;
/* 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_SetTextureBlendMode( tface, (SDL_BlendMode)mode );
if (ret != 0) checkFailCount3++;
/* Blitting. */
rect.x = i;
rect.y = j;
ret = SDL_RenderCopy(renderer, tface, NULL, &rect );
if (ret != 0) checkFailCount4++;
}
}
SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_SetTextureColorMod, expected: 0, got: %i", checkFailCount1);
SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_SetTextureAlphaMod, expected: 0, got: %i", checkFailCount2);
SDLTest_AssertCheck(checkFailCount3 == 0, "Validate results from calls to SDL_SetTextureBlendMode, expected: 0, got: %i", checkFailCount3);
SDLTest_AssertCheck(checkFailCount4 == 0, "Validate results from calls to SDL_RenderCopy, expected: 0, got: %i", checkFailCount4);
/* Clean up. */
SDL_DestroyTexture( tface );
/* Check to see if final image matches. */
referenceSurface = SDLTest_ImageBlitBlendAll();
_compare(referenceSurface, ALLOWABLE_ERROR_BLENDED);
SDL_FreeSurface(referenceSurface);
referenceSurface = NULL;
return TEST_COMPLETED;
}
/**
* @brief Checks to see if functionality is supported. Helper function.
*/
static int
_isSupported( int code )
{
return (code == 0);
}
/**
* @brief Test to see if we can vary the draw color. Helper function.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_SetRenderDrawColor
* http://wiki.libsdl.org/moin.cgi/SDL_GetRenderDrawColor
*/
static int
_hasDrawColor (void)
{
int ret, fail;
Uint8 r, g, b, a;
fail = 0;
/* Set color. */
ret = SDL_SetRenderDrawColor(renderer, 100, 100, 100, 100 );
if (!_isSupported(ret))
fail = 1;
ret = SDL_GetRenderDrawColor(renderer, &r, &g, &b, &a );
if (!_isSupported(ret))
fail = 1;
/* Restore natural. */
ret = SDL_SetRenderDrawColor(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE );
if (!_isSupported(ret))
fail = 1;
/* Something failed, consider not available. */
if (fail)
return 0;
/* Not set properly, consider failed. */
else if ((r != 100) || (g != 100) || (b != 100) || (a != 100))
return 0;
return 1;
}
/**
* @brief Test to see if we can vary the blend mode. Helper function.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_SetRenderDrawBlendMode
* http://wiki.libsdl.org/moin.cgi/SDL_GetRenderDrawBlendMode
*/
static int
_hasBlendModes (void)
{
int fail;
int ret;
SDL_BlendMode mode;
fail = 0;
ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND );
if (!_isSupported(ret))
fail = 1;
ret = SDL_GetRenderDrawBlendMode(renderer, &mode );
if (!_isSupported(ret))
fail = 1;
ret = (mode != SDL_BLENDMODE_BLEND);
if (!_isSupported(ret))
fail = 1;
ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_ADD );
if (!_isSupported(ret))
fail = 1;
ret = SDL_GetRenderDrawBlendMode(renderer, &mode );
if (!_isSupported(ret))
fail = 1;
ret = (mode != SDL_BLENDMODE_ADD);
if (!_isSupported(ret))
fail = 1;
ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_MOD );
if (!_isSupported(ret))
fail = 1;
ret = SDL_GetRenderDrawBlendMode(renderer, &mode );
if (!_isSupported(ret))
fail = 1;
ret = (mode != SDL_BLENDMODE_MOD);
if (!_isSupported(ret))
fail = 1;
ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE );
if (!_isSupported(ret))
fail = 1;
ret = SDL_GetRenderDrawBlendMode(renderer, &mode );
if (!_isSupported(ret))
fail = 1;
ret = (mode != SDL_BLENDMODE_NONE);
if (!_isSupported(ret))
fail = 1;
return !fail;
}
/**
* @brief Loads the test image 'Face' as texture. Helper function.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_CreateTextureFromSurface
*/
static SDL_Texture *
_loadTestFace(void)
{
SDL_Surface *face;
SDL_Texture *tface;
face = SDLTest_ImageFace();
if (face == NULL) {
return NULL;
}
tface = SDL_CreateTextureFromSurface(renderer, face);
if (tface == NULL) {
SDLTest_LogError("SDL_CreateTextureFromSurface() failed with error: %s", SDL_GetError());
}
SDL_FreeSurface(face);
return tface;
}
/**
* @brief Test to see if can set texture color mode. Helper function.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_SetTextureColorMod
* http://wiki.libsdl.org/moin.cgi/SDL_GetTextureColorMod
* http://wiki.libsdl.org/moin.cgi/SDL_DestroyTexture
*/
static int
_hasTexColor (void)
{
int fail;
int ret;
SDL_Texture *tface;
Uint8 r, g, b;
/* Get test face. */
tface = _loadTestFace();
if (tface == NULL)
return 0;
/* See if supported. */
fail = 0;
ret = SDL_SetTextureColorMod( tface, 100, 100, 100 );
if (!_isSupported(ret))
fail = 1;
ret = SDL_GetTextureColorMod( tface, &r, &g, &b );
if (!_isSupported(ret))
fail = 1;
/* Clean up. */
SDL_DestroyTexture( tface );
if (fail)
return 0;
else if ((r != 100) || (g != 100) || (b != 100))
return 0;
return 1;
}
/**
* @brief Test to see if we can vary the alpha of the texture. Helper function.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_SetTextureAlphaMod
* http://wiki.libsdl.org/moin.cgi/SDL_GetTextureAlphaMod
* http://wiki.libsdl.org/moin.cgi/SDL_DestroyTexture
*/
static int
_hasTexAlpha(void)
{
int fail;
int ret;
SDL_Texture *tface;
Uint8 a;
/* Get test face. */
tface = _loadTestFace();
if (tface == NULL)
return 0;
/* See if supported. */
fail = 0;
ret = SDL_SetTextureAlphaMod( tface, 100 );
if (!_isSupported(ret))
fail = 1;
ret = SDL_GetTextureAlphaMod( tface, &a );
if (!_isSupported(ret))
fail = 1;
/* Clean up. */
SDL_DestroyTexture( tface );
if (fail)
return 0;
else if (a != 100)
return 0;
return 1;
}
/**
* @brief Compares screen pixels with image pixels. Helper function.
*
* @param s Image to compare against.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_RenderReadPixels
* http://wiki.libsdl.org/moin.cgi/SDL_CreateRGBSurfaceFrom
* http://wiki.libsdl.org/moin.cgi/SDL_FreeSurface
*/
static void
_compare(SDL_Surface *referenceSurface, int allowable_error)
{
int result;
SDL_Rect rect;
Uint8 *pixels;
SDL_Surface *testSurface;
/* Read pixels. */
pixels = (Uint8 *)SDL_malloc(4*TESTRENDER_SCREEN_W*TESTRENDER_SCREEN_H);
SDLTest_AssertCheck(pixels != NULL, "Validate allocated temp pixel buffer");
if (pixels == NULL) return;
/* Explicitly specify the rect in case the window isn't the expected size... */
rect.x = 0;
rect.y = 0;
rect.w = TESTRENDER_SCREEN_W;
rect.h = TESTRENDER_SCREEN_H;
result = SDL_RenderReadPixels(renderer, &rect, RENDER_COMPARE_FORMAT, pixels, 80*4 );
SDLTest_AssertCheck(result == 0, "Validate result from SDL_RenderReadPixels, expected: 0, got: %i", result);
/* Create surface. */
testSurface = SDL_CreateRGBSurfaceFrom(pixels, TESTRENDER_SCREEN_W, TESTRENDER_SCREEN_H, 32, TESTRENDER_SCREEN_W*4,
RENDER_COMPARE_RMASK, RENDER_COMPARE_GMASK, RENDER_COMPARE_BMASK, RENDER_COMPARE_AMASK);
SDLTest_AssertCheck(testSurface != NULL, "Verify result from SDL_CreateRGBSurfaceFrom is not NULL");
/* Compare surface. */
result = SDLTest_CompareSurfaces( testSurface, referenceSurface, allowable_error );
SDLTest_AssertCheck(result == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", result);
/* Clean up. */
SDL_free(pixels);
SDL_FreeSurface(testSurface);
}
/**
* @brief Clears the screen. Helper function.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_SetRenderDrawColor
* http://wiki.libsdl.org/moin.cgi/SDL_RenderFillRect
* http://wiki.libsdl.org/moin.cgi/SDL_SetRenderDrawBlendMode
*/
static int
_clearScreen(void)
{
int ret;
/* Set color. */
ret = SDL_SetRenderDrawColor(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE );
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
/* Clear screen. */
ret = SDL_RenderFillRect(renderer, NULL );