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SDL/test/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 <SDL3/SDL.h>
#include <SDL3/SDL_test.h>
#include "testautomation_images.h"
#include "testautomation_suites.h"
/* ================= Test Case Implementation ================== */
#define TESTRENDER_SCREEN_W 80
#define TESTRENDER_SCREEN_H 60
#define RENDER_COMPARE_FORMAT SDL_PIXELFORMAT_ARGB8888
#define RENDER_COLOR_CLEAR 0xFF000000
#define RENDER_COLOR_GREEN 0xFF00FF00
#define ALLOWABLE_ERROR_OPAQUE 0
#define ALLOWABLE_ERROR_BLENDED 64
#define CHECK_FUNC(FUNC, PARAMS) \
{ \
int result = FUNC PARAMS; \
if (result != 0) { \
SDLTest_AssertCheck(result == 0, "Validate result from %s, expected: 0, got: %i, %s", #FUNC, result, SDL_GetError()); \
} \
}
/* Test window and renderer */
static SDL_Window *window = NULL;
static 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
*/
static void InitCreateRenderer(void *arg)
{
int width = 320, height = 240;
int renderer_flags = SDL_RENDERER_ACCELERATED;
renderer = NULL;
window = SDL_CreateWindow("render_testCreateRenderer", width, height, 0);
SDLTest_AssertPass("SDL_CreateWindow()");
SDLTest_AssertCheck(window != NULL, "Check SDL_CreateWindow result");
if (window == NULL) {
return;
}
if (SDL_strcmp(SDL_GetCurrentVideoDriver(), "dummy") == 0) {
renderer_flags = 0;
}
renderer = SDL_CreateRenderer(window, NULL, renderer_flags);
SDLTest_AssertPass("SDL_CreateRenderer()");
SDLTest_AssertCheck(renderer != NULL, "Check SDL_CreateRenderer result: %s", renderer != NULL ? "success" : SDL_GetError());
if (renderer == NULL) {
SDL_DestroyWindow(window);
return;
}
}
/**
* Destroy renderer for tests
*/
static void CleanupDestroyRenderer(void *arg)
{
if (renderer) {
SDL_DestroyRenderer(renderer);
renderer = NULL;
SDLTest_AssertPass("SDL_DestroyRenderer()");
}
if (window) {
SDL_DestroyWindow(window);
window = NULL;
SDLTest_AssertPass("SDL_DestroyWindow");
}
}
/**
* Tests call to SDL_GetNumRenderDrivers
*
* \sa SDL_GetNumRenderDrivers
*/
static 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;
}
/**
* Tests the SDL primitives for rendering.
*
* \sa SDL_SetRenderDrawColor
* \sa SDL_RenderFillRect
* \sa SDL_RenderLine
*
*/
static int render_testPrimitives(void *arg)
{
int ret;
int x, y;
SDL_FRect rect;
SDL_Surface *referenceSurface = NULL;
int checkFailCount1;
int checkFailCount2;
/* Clear surface. */
clearScreen();
/* Need drawcolor or just skip test. */
SDLTest_AssertCheck(hasDrawColor(), "_hasDrawColor");
/* Draw a rectangle. */
rect.x = 40.0f;
rect.y = 0.0f;
rect.w = 40.0f;
rect.h = 80.0f;
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 13, 73, 200, SDL_ALPHA_OPAQUE))
CHECK_FUNC(SDL_RenderFillRect, (renderer, &rect))
/* Draw a rectangle. */
rect.x = 10.0f;
rect.y = 10.0f;
rect.w = 60.0f;
rect.h = 40.0f;
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 200, 0, 100, SDL_ALPHA_OPAQUE))
CHECK_FUNC(SDL_RenderFillRect, (renderer, &rect))
/* 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_RenderPoint(renderer, (float)x, (float)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_RenderPoint, expected: 0, got: %i", checkFailCount2);
/* Draw some lines. */
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 0, 255, 0, SDL_ALPHA_OPAQUE))
CHECK_FUNC(SDL_RenderLine, (renderer, 0.0f, 30.0f, (float)TESTRENDER_SCREEN_W, 30.0f))
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 55, 55, 5, SDL_ALPHA_OPAQUE))
CHECK_FUNC(SDL_RenderLine, (renderer, 40.0f, 30.0f, 40.0f, 60.0f))
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 5, 105, 105, SDL_ALPHA_OPAQUE))
CHECK_FUNC(SDL_RenderLine, (renderer, 0.0f, 0.0f, 29.0f, 29.0f))
CHECK_FUNC(SDL_RenderLine, (renderer, 29.0f, 30.0f, 0.0f, 59.0f))
CHECK_FUNC(SDL_RenderLine, (renderer, 79.0f, 0.0f, 50.0f, 29.0f))
CHECK_FUNC(SDL_RenderLine, (renderer, 79.0f, 59.0f, 50.0f, 30.0f))
/* See if it's the same. */
referenceSurface = SDLTest_ImagePrimitives();
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
/* Clean up. */
SDL_DestroySurface(referenceSurface);
referenceSurface = NULL;
return TEST_COMPLETED;
}
/**
* Tests the SDL primitives with alpha for rendering.
*
* \sa SDL_SetRenderDrawColor
* \sa SDL_SetRenderDrawBlendMode
* \sa SDL_RenderFillRect
*/
static int render_testPrimitivesBlend(void *arg)
{
int ret;
int i, j;
SDL_FRect rect;
SDL_Surface *referenceSurface = NULL;
int checkFailCount1;
int checkFailCount2;
int checkFailCount3;
/* Clear surface. */
clearScreen();
/* Need drawcolor and blendmode or just skip test. */
SDLTest_AssertCheck(hasDrawColor(), "_hasDrawColor");
SDLTest_AssertCheck(hasBlendModes(), "_hasBlendModes");
/* Create some rectangles for each blend mode. */
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 255, 255, 255, 0))
CHECK_FUNC(SDL_SetRenderDrawBlendMode, (renderer, SDL_BLENDMODE_NONE))
CHECK_FUNC(SDL_RenderFillRect, (renderer, NULL))
rect.x = 10.0f;
rect.y = 25.0f;
rect.w = 40.0f;
rect.h = 25.0f;
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 240, 10, 10, 75))
CHECK_FUNC(SDL_SetRenderDrawBlendMode, (renderer, SDL_BLENDMODE_ADD))
CHECK_FUNC(SDL_RenderFillRect, (renderer, &rect))
rect.x = 30.0f;
rect.y = 40.0f;
rect.w = 45.0f;
rect.h = 15.0f;
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 10, 240, 10, 100))
CHECK_FUNC(SDL_SetRenderDrawBlendMode, (renderer, SDL_BLENDMODE_BLEND))
CHECK_FUNC(SDL_RenderFillRect, (renderer, &rect))
rect.x = 25.0f;
rect.y = 25.0f;
rect.w = 25.0f;
rect.h = 25.0f;
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 10, 10, 240, 125))
CHECK_FUNC(SDL_SetRenderDrawBlendMode, (renderer, SDL_BLENDMODE_NONE))
CHECK_FUNC(SDL_RenderFillRect, (renderer, &rect))
/* 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_RenderLine(renderer, 0.0f, 0.0f, (float)i, 59.0f);
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_RenderLine, 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_RenderLine(renderer, 0.0f, 0.0f, 79.0f, (float)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_RenderLine, 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_RenderPoint(renderer, (float)i, (float)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_RenderPoint, expected: 0, got: %i", checkFailCount3);
/* See if it's the same. */
referenceSurface = SDLTest_ImagePrimitivesBlend();
compare(referenceSurface, ALLOWABLE_ERROR_BLENDED);
/* Make current */
SDL_RenderPresent(renderer);
/* Clean up. */
SDL_DestroySurface(referenceSurface);
referenceSurface = NULL;
return TEST_COMPLETED;
}
/**
* Tests the SDL primitives for rendering within a viewport.
*
* \sa SDL_SetRenderDrawColor
* \sa SDL_RenderFillRect
* \sa SDL_RenderLine
*
*/
static int render_testPrimitivesWithViewport(void *arg)
{
SDL_Rect viewport;
Uint32 pixel;
/* Clear surface. */
clearScreen();
viewport.x = 2;
viewport.y = 2;
viewport.w = 2;
viewport.h = 2;
CHECK_FUNC(SDL_SetRenderViewport, (renderer, &viewport));
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 255, 255, 255, SDL_ALPHA_OPAQUE))
CHECK_FUNC(SDL_RenderLine, (renderer, 0.0f, 0.0f, 1.0f, 1.0f));
viewport.x = 3;
viewport.y = 3;
viewport.w = 1;
viewport.h = 1;
CHECK_FUNC(SDL_SetRenderViewport, (renderer, &viewport));
pixel = 0;
CHECK_FUNC(SDL_RenderReadPixels, (renderer, NULL, SDL_PIXELFORMAT_RGBA8888, &pixel, sizeof(pixel)));
SDLTest_AssertCheck(pixel == 0xFFFFFFFF, "Validate diagonal line drawing with viewport, expected 0xFFFFFFFF, got 0x%.8x", (unsigned int)pixel);
return TEST_COMPLETED;
}
/**
* Tests some blitting routines.
*
* \sa SDL_RenderTexture
* \sa SDL_DestroyTexture
*/
static int render_testBlit(void *arg)
{
int ret;
SDL_FRect rect;
SDL_Texture *tface;
SDL_Surface *referenceSurface = NULL;
Uint32 tformat;
int taccess, tw, th;
int i, j, ni, nj;
int checkFailCount1;
/* Clear surface. */
clearScreen();
/* 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. */
CHECK_FUNC(SDL_QueryTexture, (tface, &tformat, &taccess, &tw, &th))
rect.w = (float)tw;
rect.h = (float)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 = (float)i;
rect.y = (float)j;
ret = SDL_RenderTexture(renderer, tface, NULL, &rect);
if (ret != 0) {
checkFailCount1++;
}
}
}
SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_RenderTexture, expected: 0, got: %i", checkFailCount1);
/* See if it's the same */
referenceSurface = SDLTest_ImageBlit();
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
/* Clean up. */
SDL_DestroyTexture(tface);
SDL_DestroySurface(referenceSurface);
referenceSurface = NULL;
return TEST_COMPLETED;
}
/**
* Blits doing color tests.
*
* \sa SDL_SetTextureColorMod
* \sa SDL_RenderTexture
* \sa SDL_DestroyTexture
*/
static int render_testBlitColor(void *arg)
{
int ret;
SDL_FRect rect;
SDL_Texture *tface;
SDL_Surface *referenceSurface = NULL;
Uint32 tformat;
int taccess, tw, th;
int i, j, ni, nj;
int checkFailCount1;
int checkFailCount2;
/* Clear surface. */
clearScreen();
/* Create face surface. */
tface = loadTestFace();
SDLTest_AssertCheck(tface != NULL, "Verify loadTestFace() result");
if (tface == NULL) {
return TEST_ABORTED;
}
/* Constant values. */
CHECK_FUNC(SDL_QueryTexture, (tface, &tformat, &taccess, &tw, &th))
rect.w = (float)tw;
rect.h = (float)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 = (float)i;
rect.y = (float)j;
ret = SDL_RenderTexture(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_RenderTexture, expected: 0, got: %i", checkFailCount2);
/* See if it's the same. */
referenceSurface = SDLTest_ImageBlitColor();
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
/* Clean up. */
SDL_DestroyTexture(tface);
SDL_DestroySurface(referenceSurface);
referenceSurface = NULL;
return TEST_COMPLETED;
}
/**
* Tests blitting with alpha.
*
* \sa SDL_SetTextureAlphaMod
* \sa SDL_RenderTexture
* \sa SDL_DestroyTexture
*/
static int render_testBlitAlpha(void *arg)
{
int ret;
SDL_FRect rect;
SDL_Texture *tface;
SDL_Surface *referenceSurface = NULL;
Uint32 tformat;
int taccess, tw, th;
int i, j, ni, nj;
int checkFailCount1;
int checkFailCount2;
/* Clear surface. */
clearScreen();
/* 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. */
CHECK_FUNC(SDL_QueryTexture, (tface, &tformat, &taccess, &tw, &th))
rect.w = (float)tw;
rect.h = (float)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 = (float)i;
rect.y = (float)j;
ret = SDL_RenderTexture(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_RenderTexture, expected: 0, got: %i", checkFailCount2);
/* See if it's the same. */
referenceSurface = SDLTest_ImageBlitAlpha();
compare(referenceSurface, ALLOWABLE_ERROR_BLENDED);
/* Make current */
SDL_RenderPresent(renderer);
/* Clean up. */
SDL_DestroyTexture(tface);
SDL_DestroySurface(referenceSurface);
referenceSurface = NULL;
return TEST_COMPLETED;
}
/**
* Tests a blend mode.
*
* \sa SDL_SetTextureBlendMode
* \sa SDL_RenderTexture
*/
static void
testBlitBlendMode(SDL_Texture *tface, int mode)
{
int ret;
Uint32 tformat;
int taccess, tw, th;
int i, j, ni, nj;
SDL_FRect rect;
int checkFailCount1;
int checkFailCount2;
/* Clear surface. */
clearScreen();
/* Constant values. */
CHECK_FUNC(SDL_QueryTexture, (tface, &tformat, &taccess, &tw, &th))
rect.w = (float)tw;
rect.h = (float)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 = (float)i;
rect.y = (float)j;
ret = SDL_RenderTexture(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_RenderTexture, expected: 0, got: %i", checkFailCount2);
}
/**
* Tests some more blitting routines.
*
* \sa SDL_SetTextureColorMod
* \sa SDL_SetTextureAlphaMod
* \sa SDL_SetTextureBlendMode
* \sa SDL_DestroyTexture
*/
static int render_testBlitBlend(void *arg)
{
int ret;
SDL_FRect 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. */
CHECK_FUNC(SDL_QueryTexture, (tface, &tformat, &taccess, &tw, &th))
rect.w = (float)tw;
rect.h = (float)th;
ni = TESTRENDER_SCREEN_W - tw;
nj = TESTRENDER_SCREEN_H - th;
/* Set alpha mod. */
CHECK_FUNC(SDL_SetTextureAlphaMod, (tface, 100))
/* Test None. */
testBlitBlendMode(tface, SDL_BLENDMODE_NONE);
referenceSurface = SDLTest_ImageBlitBlendNone();
/* Compare, then Present */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
SDL_RenderPresent(renderer);
SDL_DestroySurface(referenceSurface);
referenceSurface = NULL;
/* Test Blend. */
testBlitBlendMode(tface, SDL_BLENDMODE_BLEND);
referenceSurface = SDLTest_ImageBlitBlend();
/* Compare, then Present */
compare(referenceSurface, ALLOWABLE_ERROR_BLENDED);
SDL_RenderPresent(renderer);
SDL_DestroySurface(referenceSurface);
referenceSurface = NULL;
/* Test Add. */
testBlitBlendMode(tface, SDL_BLENDMODE_ADD);
referenceSurface = SDLTest_ImageBlitBlendAdd();
/* Compare, then Present */
compare(referenceSurface, ALLOWABLE_ERROR_BLENDED);
SDL_RenderPresent(renderer);
SDL_DestroySurface(referenceSurface);
referenceSurface = NULL;
/* Test Mod. */
testBlitBlendMode(tface, SDL_BLENDMODE_MOD);
referenceSurface = SDLTest_ImageBlitBlendMod();
/* Compare, then Present */
compare(referenceSurface, ALLOWABLE_ERROR_BLENDED);
SDL_RenderPresent(renderer);
SDL_DestroySurface(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 = (float)i;
rect.y = (float)j;
ret = SDL_RenderTexture(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_RenderTexture, 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);
/* Make current */
SDL_RenderPresent(renderer);
SDL_DestroySurface(referenceSurface);
referenceSurface = NULL;
return TEST_COMPLETED;
}
/**
* Test viewport
*/
static int render_testViewport(void *arg)
{
SDL_Surface *referenceSurface;
SDL_Rect viewport;
viewport.x = TESTRENDER_SCREEN_W / 3;
viewport.y = TESTRENDER_SCREEN_H / 3;
viewport.w = TESTRENDER_SCREEN_W / 2;
viewport.h = TESTRENDER_SCREEN_H / 2;
/* Create expected result */
referenceSurface = SDL_CreateSurface(TESTRENDER_SCREEN_W, TESTRENDER_SCREEN_H, RENDER_COMPARE_FORMAT);
CHECK_FUNC(SDL_FillSurfaceRect, (referenceSurface, NULL, RENDER_COLOR_CLEAR))
CHECK_FUNC(SDL_FillSurfaceRect, (referenceSurface, &viewport, RENDER_COLOR_GREEN))
/* Clear surface. */
clearScreen();
/* Set the viewport and do a fill operation */
CHECK_FUNC(SDL_SetRenderViewport, (renderer, &viewport))
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 0, 255, 0, SDL_ALPHA_OPAQUE))
CHECK_FUNC(SDL_RenderFillRect, (renderer, NULL))
CHECK_FUNC(SDL_SetRenderViewport, (renderer, NULL))
/* Check to see if final image matches. */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/*
* Verify that clear ignores the viewport
*/
/* Create expected result */
CHECK_FUNC(SDL_FillSurfaceRect, (referenceSurface, NULL, RENDER_COLOR_GREEN))
/* Clear surface. */
clearScreen();
/* Set the viewport and do a clear operation */
CHECK_FUNC(SDL_SetRenderViewport, (renderer, &viewport))
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 0, 255, 0, SDL_ALPHA_OPAQUE))
CHECK_FUNC(SDL_RenderClear, (renderer))
CHECK_FUNC(SDL_SetRenderViewport, (renderer, NULL))
/* Check to see if final image matches. */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
SDL_DestroySurface(referenceSurface);
return TEST_COMPLETED;
}
/**
* Test logical size
*/
static int render_testLogicalSize(void *arg)
{
SDL_Surface *referenceSurface;
SDL_Rect viewport;
SDL_FRect rect;
int w, h;
const int factor = 2;
viewport.x = ((TESTRENDER_SCREEN_W / 4) / factor) * factor;
viewport.y = ((TESTRENDER_SCREEN_H / 4) / factor) * factor;
viewport.w = ((TESTRENDER_SCREEN_W / 2) / factor) * factor;
viewport.h = ((TESTRENDER_SCREEN_H / 2) / factor) * factor;
/* Create expected result */
referenceSurface = SDL_CreateSurface(TESTRENDER_SCREEN_W, TESTRENDER_SCREEN_H, RENDER_COMPARE_FORMAT);
CHECK_FUNC(SDL_FillSurfaceRect, (referenceSurface, NULL, RENDER_COLOR_CLEAR))
CHECK_FUNC(SDL_FillSurfaceRect, (referenceSurface, &viewport, RENDER_COLOR_GREEN))
/* Clear surface. */
clearScreen();
/* Set the logical size and do a fill operation */
CHECK_FUNC(SDL_GetCurrentRenderOutputSize, (renderer, &w, &h))
CHECK_FUNC(SDL_SetRenderLogicalPresentation, (renderer, w / factor, h / factor,
SDL_LOGICAL_PRESENTATION_LETTERBOX,
SDL_SCALEMODE_NEAREST))
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 0, 255, 0, SDL_ALPHA_OPAQUE))
rect.x = (float)viewport.x / factor;
rect.y = (float)viewport.y / factor;
rect.w = (float)viewport.w / factor;
rect.h = (float)viewport.h / factor;
CHECK_FUNC(SDL_RenderFillRect, (renderer, &rect))
CHECK_FUNC(SDL_SetRenderLogicalPresentation, (renderer, 0, 0,
SDL_LOGICAL_PRESENTATION_DISABLED,
SDL_SCALEMODE_NEAREST))
/* Check to see if final image matches. */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Clear surface. */
clearScreen();
/* Set the logical size and viewport and do a fill operation */
CHECK_FUNC(SDL_GetCurrentRenderOutputSize, (renderer, &w, &h))
CHECK_FUNC(SDL_SetRenderLogicalPresentation, (renderer, w / factor, h / factor,
SDL_LOGICAL_PRESENTATION_LETTERBOX,
SDL_SCALEMODE_NEAREST))
viewport.x = (TESTRENDER_SCREEN_W / 4) / factor;
viewport.y = (TESTRENDER_SCREEN_H / 4) / factor;
viewport.w = (TESTRENDER_SCREEN_W / 2) / factor;
viewport.h = (TESTRENDER_SCREEN_H / 2) / factor;
CHECK_FUNC(SDL_SetRenderViewport, (renderer, &viewport))
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 0, 255, 0, SDL_ALPHA_OPAQUE))
CHECK_FUNC(SDL_RenderFillRect, (renderer, NULL))
CHECK_FUNC(SDL_SetRenderViewport, (renderer, NULL))
CHECK_FUNC(SDL_SetRenderLogicalPresentation, (renderer, 0, 0,
SDL_LOGICAL_PRESENTATION_DISABLED,
SDL_SCALEMODE_NEAREST))
/* Check to see if final image matches. */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/*
* Test a logical size that isn't the same aspect ratio as the window
*/
viewport.x = (TESTRENDER_SCREEN_W / 4);
viewport.y = 0;
viewport.w = TESTRENDER_SCREEN_W;
viewport.h = TESTRENDER_SCREEN_H;
/* Create expected result */
CHECK_FUNC(SDL_FillSurfaceRect, (referenceSurface, NULL, RENDER_COLOR_CLEAR))
CHECK_FUNC(SDL_FillSurfaceRect, (referenceSurface, &viewport, RENDER_COLOR_GREEN))
/* Clear surface. */
clearScreen();
/* Set the logical size and do a fill operation */
CHECK_FUNC(SDL_GetCurrentRenderOutputSize, (renderer, &w, &h))
CHECK_FUNC(SDL_SetRenderLogicalPresentation, (renderer,
w - 2 * (TESTRENDER_SCREEN_W / 4),
h,
SDL_LOGICAL_PRESENTATION_LETTERBOX,
SDL_SCALEMODE_LINEAR))
CHECK_FUNC(SDL_SetRenderDrawColor, (renderer, 0, 255, 0, SDL_ALPHA_OPAQUE))
CHECK_FUNC(SDL_RenderFillRect, (renderer, NULL))
CHECK_FUNC(SDL_SetRenderLogicalPresentation, (renderer, 0, 0,
SDL_LOGICAL_PRESENTATION_DISABLED,
SDL_SCALEMODE_NEAREST))
/* Check to see if final image matches. */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Clear surface. */
clearScreen();
/* Make current */
SDL_RenderPresent(renderer);
SDL_DestroySurface(referenceSurface);
return TEST_COMPLETED;
}
/* Helper functions */
/**
* Checks to see if functionality is supported. Helper function.
*/
static int
isSupported(int code)
{
return code == 0;
}
/**
* Test to see if we can vary the draw color. Helper function.
*
* \sa SDL_SetRenderDrawColor
* \sa 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;
}
/**
* Test to see if we can vary the blend mode. Helper function.
*
* \sa SDL_SetRenderDrawBlendMode
* \sa 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;
}
/**
* Loads the test image 'Face' as texture. Helper function.
*
* \sa SDL_CreateTextureFromSurface
*/
static SDL_Texture *
loadTestFace(void)
{
SDL_Surface *face;
SDL_Texture *tface;
face = SDLTest_ImageFace();
if (!face) {
return NULL;
}
tface = SDL_CreateTextureFromSurface(renderer, face);
if (!tface) {
SDLTest_LogError("SDL_CreateTextureFromSurface() failed with error: %s", SDL_GetError());
}
SDL_DestroySurface(face);
return tface;
}
/**
* Test to see if can set texture color mode. Helper function.
*
* \sa SDL_SetTextureColorMod
* \sa SDL_GetTextureColorMod
* \sa SDL_DestroyTexture
*/
static int
hasTexColor(void)
{
int fail;
int ret;
SDL_Texture *tface;
Uint8 r, g, b;
/* Get test face. */
tface = loadTestFace();
if (!tface) {
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;
}
/**
* Test to see if we can vary the alpha of the texture. Helper function.
*
* \sa SDL_SetTextureAlphaMod
* \sa SDL_GetTextureAlphaMod
* \sa SDL_DestroyTexture
*/
static int
hasTexAlpha(void)
{
int fail;
int ret;
SDL_Texture *tface;
Uint8 a;
/* Get test face. */
tface = loadTestFace();
if (!tface) {
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;
}
/**
* Compares screen pixels with image pixels. Helper function.
*
* \param referenceSurface Image to compare against.
* \param allowable_error allowed difference from the reference image
*
* \sa SDL_RenderReadPixels
* \sa SDL_CreateSurfaceFrom
* \sa SDL_DestroySurface
*/
static void
compare(SDL_Surface *referenceSurface, int allowable_error)
{
int ret;
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;
CHECK_FUNC(SDL_RenderReadPixels, (renderer, &rect, RENDER_COMPARE_FORMAT, pixels, 80*4 ))
/* Create surface. */
testSurface = SDL_CreateSurfaceFrom(pixels, TESTRENDER_SCREEN_W, TESTRENDER_SCREEN_H, TESTRENDER_SCREEN_W*4, RENDER_COMPARE_FORMAT);
SDLTest_AssertCheck(testSurface != NULL, "Verify result from SDL_CreateSurfaceFrom is not NULL");
/* Compare surface. */
ret = SDLTest_CompareSurfaces( testSurface, referenceSurface, allowable_error );
SDLTest_AssertCheck(ret == 0, "Validate result from SDLTest_CompareSurfaces, expected: 0, got: %i", ret);
/* Clean up. */
SDL_free(pixels);
SDL_DestroySurface(testSurface);
}
/**
* Clears the screen. Helper function.
*
* \sa SDL_SetRenderDrawColor
* \sa SDL_RenderClear
* \sa SDL_RenderPresent
* \sa SDL_SetRenderDrawBlendMode
*/
static int
clearScreen(void)
{
int ret;
/* Make current */
SDL_RenderPresent(renderer);
/* 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_RenderClear(renderer);
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderClear, expected: 0, got: %i", ret);
/* Set defaults. */
ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE);
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawBlendMode, expected: 0, got: %i", ret);
ret = SDL_SetRenderDrawColor(renderer, 255, 255, 255, SDL_ALPHA_OPAQUE);
SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
return 0;
}
/* ================= Test References ================== */
/* Render test cases */
static const SDLTest_TestCaseReference renderTest1 = {
(SDLTest_TestCaseFp)render_testGetNumRenderDrivers, "render_testGetNumRenderDrivers", "Tests call to SDL_GetNumRenderDrivers", TEST_ENABLED
};
static const SDLTest_TestCaseReference renderTest2 = {
(SDLTest_TestCaseFp)render_testPrimitives, "render_testPrimitives", "Tests rendering primitives", TEST_ENABLED
};
/* TODO: rewrite test case, define new test data and re-enable; current implementation fails */
static const SDLTest_TestCaseReference renderTest3 = {
(SDLTest_TestCaseFp)render_testPrimitivesBlend, "render_testPrimitivesBlend", "Tests rendering primitives with blending", TEST_DISABLED
};
static const SDLTest_TestCaseReference renderTest4 = {
(SDLTest_TestCaseFp)render_testPrimitivesWithViewport, "render_testPrimitivesWithViewport", "Tests rendering primitives within a viewport", TEST_ENABLED
};
static const SDLTest_TestCaseReference renderTest5 = {
(SDLTest_TestCaseFp)render_testBlit, "render_testBlit", "Tests blitting", TEST_ENABLED
};
static const SDLTest_TestCaseReference renderTest6 = {
(SDLTest_TestCaseFp)render_testBlitColor, "render_testBlitColor", "Tests blitting with color", TEST_ENABLED
};
/* TODO: rewrite test case, define new test data and re-enable; current implementation fails */
static const SDLTest_TestCaseReference renderTest7 = {
(SDLTest_TestCaseFp)render_testBlitAlpha, "render_testBlitAlpha", "Tests blitting with alpha", TEST_DISABLED
};
/* TODO: rewrite test case, define new test data and re-enable; current implementation fails */
static const SDLTest_TestCaseReference renderTest8 = {
(SDLTest_TestCaseFp)render_testBlitBlend, "render_testBlitBlend", "Tests blitting with blending", TEST_DISABLED
};
static const SDLTest_TestCaseReference renderTest9 = {
(SDLTest_TestCaseFp)render_testViewport, "render_testViewport", "Tests viewport", TEST_ENABLED
};
static const SDLTest_TestCaseReference renderTest10 = {
(SDLTest_TestCaseFp)render_testLogicalSize, "render_testLogicalSize", "Tests logical size", TEST_ENABLED
};
/* Sequence of Render test cases */
static const SDLTest_TestCaseReference *renderTests[] = {
&renderTest1, &renderTest2, &renderTest3, &renderTest4,
&renderTest5, &renderTest6, &renderTest7, &renderTest8,
&renderTest9, &renderTest10, NULL
};
/* Render test suite (global) */
SDLTest_TestSuiteReference renderTestSuite = {
"Render",
InitCreateRenderer,
renderTests,
CleanupDestroyRenderer
};
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