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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 0
#define CHECK_FUNC(FUNC, PARAMS) \
{ \
bool result = FUNC PARAMS; \
if (!result) { \
SDLTest_AssertCheck(result, "Validate result from %s, expected: true, got: false, %s", #FUNC, 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 void compare2x(SDL_Surface *reference, int allowable_error);
static SDL_Texture *loadTestFace(void);
static bool isSupported(int code);
static bool hasDrawColor(void);
/**
* Create software renderer for tests
*/
static void SDLCALL InitCreateRenderer(void **arg)
{
int width = 320, height = 240;
const char *renderer_name = NULL;
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;
}
renderer = SDL_CreateRenderer(window, renderer_name);
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 SDLCALL 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 SDLCALL 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 SDLCALL 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, (Uint8)(x * y), (Uint8)(x * y / 2), (Uint8)(x * y / 3), SDL_ALPHA_OPAQUE);
if (!ret) {
checkFailCount1++;
}
ret = SDL_RenderPoint(renderer, (float)x, (float)y);
if (!ret) {
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, 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 for rendering within a viewport.
*
* \sa SDL_SetRenderDrawColor
* \sa SDL_RenderFillRect
* \sa SDL_RenderLine
*
*/
static int SDLCALL render_testPrimitivesWithViewport(void *arg)
{
SDL_Rect viewport;
SDL_Surface *surface;
/* 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));
surface = SDL_RenderReadPixels(renderer, NULL);
if (surface) {
Uint8 r, g, b, a;
CHECK_FUNC(SDL_ReadSurfacePixel, (surface, 0, 0, &r, &g, &b, &a));
SDLTest_AssertCheck(r == 0xFF && g == 0xFF && b == 0xFF && a == 0xFF, "Validate diagonal line drawing with viewport, expected 0xFFFFFFFF, got 0x%.2x%.2x%.2x%.2x", r, g, b, a);
SDL_DestroySurface(surface);
} else {
SDLTest_AssertCheck(surface != NULL, "Validate result from SDL_RenderReadPixels, got NULL, %s", SDL_GetError());
}
return TEST_COMPLETED;
}
/**
* Tests some blitting routines.
*
* \sa SDL_RenderTexture
* \sa SDL_DestroyTexture
*/
static int SDLCALL render_testBlit(void *arg)
{
int ret;
SDL_FRect rect;
SDL_Texture *tface;
SDL_Surface *referenceSurface = NULL;
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. */
rect.w = (float)tface->w;
rect.h = (float)tface->h;
ni = TESTRENDER_SCREEN_W - tface->w;
nj = TESTRENDER_SCREEN_H - tface->h;
/* 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) {
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;
}
/**
* Tests tiled blitting routines.
*/
static int SDLCALL render_testBlitTiled(void *arg)
{
int ret;
SDL_FRect rect;
SDL_Texture *tface;
SDL_Surface *referenceSurface = NULL;
SDL_Surface *referenceSurface2x = NULL;
/* Create face surface. */
tface = loadTestFace();
SDLTest_AssertCheck(tface != NULL, "Verify loadTestFace() result");
if (tface == NULL) {
return TEST_ABORTED;
}
SDL_SetTextureScaleMode(tface, SDL_SCALEMODE_NEAREST); /* So 2x scaling is pixel perfect */
/* Tiled blit - 1.0 scale */
{
/* Clear surface. */
clearScreen();
/* Tiled blit. */
rect.x = 0.0f;
rect.y = 0.0f;
rect.w = (float)TESTRENDER_SCREEN_W;
rect.h = (float)TESTRENDER_SCREEN_H;
ret = SDL_RenderTextureTiled(renderer, tface, NULL, 1.0f, &rect);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_RenderTextureTiled, expected: true, got: %i", ret);
/* See if it's the same */
referenceSurface = SDLTest_ImageBlitTiled();
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
}
/* Tiled blit - 2.0 scale */
{
/* Clear surface. */
clearScreen();
/* Tiled blit. */
rect.x = 0.0f;
rect.y = 0.0f;
rect.w = (float)TESTRENDER_SCREEN_W * 2;
rect.h = (float)TESTRENDER_SCREEN_H * 2;
ret = SDL_RenderTextureTiled(renderer, tface, NULL, 2.0f, &rect);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_RenderTextureTiled, expected: true, got: %i", ret);
/* See if it's the same */
referenceSurface2x = SDL_CreateSurface(referenceSurface->w * 2, referenceSurface->h * 2, referenceSurface->format);
SDL_BlitSurfaceScaled(referenceSurface, NULL, referenceSurface2x, NULL, SDL_SCALEMODE_NEAREST);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_BlitSurfaceScaled, expected: 0, got: %i", ret);
compare2x(referenceSurface2x, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
}
/* Clean up. */
SDL_DestroyTexture(tface);
SDL_DestroySurface(referenceSurface);
SDL_DestroySurface(referenceSurface2x);
referenceSurface = NULL;
return TEST_COMPLETED;
}
static const Uint8 COLOR_SEPARATION = 85;
static void Fill9GridReferenceSurface(SDL_Surface *surface, int left_width, int right_width, int top_height, int bottom_height)
{
SDL_Rect rect;
// Upper left
rect.x = 0;
rect.y = 0;
rect.w = left_width;
rect.h = top_height;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 1 * COLOR_SEPARATION, 1 * COLOR_SEPARATION, 0));
// Top
rect.x = left_width;
rect.y = 0;
rect.w = surface->w - left_width - right_width;
rect.h = top_height;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 2 * COLOR_SEPARATION, 1 * COLOR_SEPARATION, 0));
// Upper right
rect.x = surface->w - right_width;
rect.y = 0;
rect.w = right_width;
rect.h = top_height;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 3 * COLOR_SEPARATION, 1 * COLOR_SEPARATION, 0));
// Left
rect.x = 0;
rect.y = top_height;
rect.w = left_width;
rect.h = surface->h - top_height - bottom_height;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 1 * COLOR_SEPARATION, 2 * COLOR_SEPARATION, 0));
// Center
rect.x = left_width;
rect.y = top_height;
rect.w = surface->w - right_width - left_width;
rect.h = surface->h - top_height - bottom_height;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 2 * COLOR_SEPARATION, 2 * COLOR_SEPARATION, 0));
// Right
rect.x = surface->w - right_width;
rect.y = top_height;
rect.w = right_width;
rect.h = surface->h - top_height - bottom_height;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 3 * COLOR_SEPARATION, 2 * COLOR_SEPARATION, 0));
// Lower left
rect.x = 0;
rect.y = surface->h - bottom_height;
rect.w = left_width;
rect.h = bottom_height;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 1 * COLOR_SEPARATION, 3 * COLOR_SEPARATION, 0));
// Bottom
rect.x = left_width;
rect.y = surface->h - bottom_height;
rect.w = surface->w - left_width - right_width;
rect.h = bottom_height;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 2 * COLOR_SEPARATION, 3 * COLOR_SEPARATION, 0));
// Lower right
rect.x = surface->w - right_width;
rect.y = surface->h - bottom_height;
rect.w = right_width;
rect.h = bottom_height;
SDL_FillSurfaceRect(surface, &rect, SDL_MapSurfaceRGB(surface, 3 * COLOR_SEPARATION, 3 * COLOR_SEPARATION, 0));
}
/**
* Tests 9-grid blitting.
*/
static int SDLCALL render_testBlit9Grid(void *arg)
{
SDL_Surface *referenceSurface = NULL;
SDL_Surface *source = NULL;
SDL_Texture *texture;
int x, y;
SDL_FRect rect;
int ret = 0;
/* Create source surface */
source = SDL_CreateSurface(3, 3, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(source != NULL, "Verify source surface is not NULL");
for (y = 0; y < 3; ++y) {
for (x = 0; x < 3; ++x) {
SDL_WriteSurfacePixel(source, x, y, (Uint8)((1 + x) * COLOR_SEPARATION), (Uint8)((1 + y) * COLOR_SEPARATION), 0, 255);
}
}
texture = SDL_CreateTextureFromSurface(renderer, source);
SDLTest_AssertCheck(texture != NULL, "Verify source texture is not NULL");
ret = SDL_SetTextureScaleMode(texture, SDL_SCALEMODE_NEAREST);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_SetTextureScaleMode, expected: true, got: %i", ret);
/* 9-grid blit - 1.0 scale */
{
SDLTest_Log("9-grid blit - 1.0 scale");
/* Create reference surface */
SDL_DestroySurface(referenceSurface);
referenceSurface = SDL_CreateSurface(TESTRENDER_SCREEN_W, TESTRENDER_SCREEN_H, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(referenceSurface != NULL, "Verify reference surface is not NULL");
Fill9GridReferenceSurface(referenceSurface, 1, 1, 1, 1);
/* Clear surface. */
clearScreen();
/* Tiled blit. */
rect.x = 0.0f;
rect.y = 0.0f;
rect.w = (float)TESTRENDER_SCREEN_W;
rect.h = (float)TESTRENDER_SCREEN_H;
ret = SDL_RenderTexture9Grid(renderer, texture, NULL, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, &rect);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_RenderTexture9Grid, expected: true, got: %i", ret);
/* See if it's the same */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
}
/* 9-grid blit - 2.0 scale */
{
SDLTest_Log("9-grid blit - 2.0 scale");
/* Create reference surface */
SDL_DestroySurface(referenceSurface);
referenceSurface = SDL_CreateSurface(TESTRENDER_SCREEN_W, TESTRENDER_SCREEN_H, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(referenceSurface != NULL, "Verify reference surface is not NULL");
Fill9GridReferenceSurface(referenceSurface, 2, 2, 2, 2);
/* Clear surface. */
clearScreen();
/* Tiled blit. */
rect.x = 0.0f;
rect.y = 0.0f;
rect.w = (float)TESTRENDER_SCREEN_W;
rect.h = (float)TESTRENDER_SCREEN_H;
ret = SDL_RenderTexture9Grid(renderer, texture, NULL, 1.0f, 1.0f, 1.0f, 1.0f, 2.0f, &rect);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_RenderTexture9Grid, expected: true, got: %i", ret);
/* See if it's the same */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
}
/* Clean up. */
SDL_DestroySurface(source);
SDL_DestroyTexture(texture);
/* Create complex source surface */
source = SDL_CreateSurface(5, 5, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(source != NULL, "Verify source surface is not NULL");
SDL_WriteSurfacePixel(source, 0, 0, (Uint8)((1) * COLOR_SEPARATION), (Uint8)((1) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 1, 0, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((1) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 2, 0, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((1) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 3, 0, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((1) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 4, 0, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((1) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 0, 1, (Uint8)((1) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 1, 1, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 2, 1, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 3, 1, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 4, 1, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 0, 2, (Uint8)((1) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 1, 2, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 2, 2, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 3, 2, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 4, 2, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 0, 3, (Uint8)((1) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 1, 3, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 2, 3, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 3, 3, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 4, 3, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 0, 4, (Uint8)((1) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 1, 4, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 2, 4, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 3, 4, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 4, 4, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
texture = SDL_CreateTextureFromSurface(renderer, source);
SDLTest_AssertCheck(texture != NULL, "Verify source texture is not NULL");
ret = SDL_SetTextureScaleMode(texture, SDL_SCALEMODE_NEAREST);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_SetTextureScaleMode, expected: true, got: %i", ret);
/* complex 9-grid blit - 1.0 scale */
{
SDLTest_Log("complex 9-grid blit - 1.0 scale");
/* Create reference surface */
SDL_DestroySurface(referenceSurface);
referenceSurface = SDL_CreateSurface(TESTRENDER_SCREEN_W, TESTRENDER_SCREEN_H, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(referenceSurface != NULL, "Verify reference surface is not NULL");
Fill9GridReferenceSurface(referenceSurface, 1, 2, 1, 2);
/* Clear surface. */
clearScreen();
/* Tiled blit. */
rect.x = 0.0f;
rect.y = 0.0f;
rect.w = (float)TESTRENDER_SCREEN_W;
rect.h = (float)TESTRENDER_SCREEN_H;
ret = SDL_RenderTexture9Grid(renderer, texture, NULL, 1.0f, 2.0f, 1.0f, 2.0f, 1.0f, &rect);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_RenderTexture9Grid, expected: true, got: %i", ret);
/* See if it's the same */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
}
/* complex 9-grid blit - 2.0 scale */
{
SDLTest_Log("complex 9-grid blit - 2.0 scale");
/* Create reference surface */
SDL_DestroySurface(referenceSurface);
referenceSurface = SDL_CreateSurface(TESTRENDER_SCREEN_W, TESTRENDER_SCREEN_H, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(referenceSurface != NULL, "Verify reference surface is not NULL");
Fill9GridReferenceSurface(referenceSurface, 2, 4, 2, 4);
/* Clear surface. */
clearScreen();
/* Tiled blit. */
rect.x = 0.0f;
rect.y = 0.0f;
rect.w = (float)TESTRENDER_SCREEN_W;
rect.h = (float)TESTRENDER_SCREEN_H;
ret = SDL_RenderTexture9Grid(renderer, texture, NULL, 1.0f, 2.0f, 1.0f, 2.0f, 2.0f, &rect);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_RenderTexture9Grid, expected: true, got: %i", ret);
/* See if it's the same */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
}
/* Clean up. */
SDL_DestroySurface(referenceSurface);
SDL_DestroySurface(source);
SDL_DestroyTexture(texture);
return TEST_COMPLETED;
}
/**
* Tests tiled 9-grid blitting.
*/
static int SDLCALL render_testBlit9GridTiled(void *arg)
{
SDL_Surface *referenceSurface = NULL;
SDL_Surface *source = NULL;
SDL_Texture *texture;
int x, y;
SDL_FRect rect;
int ret = 0;
/* Create source surface */
source = SDL_CreateSurface(3, 3, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(source != NULL, "Verify source surface is not NULL");
for (y = 0; y < 3; ++y) {
for (x = 0; x < 3; ++x) {
SDL_WriteSurfacePixel(source, x, y, (Uint8)((1 + x) * COLOR_SEPARATION), (Uint8)((1 + y) * COLOR_SEPARATION), 0, 255);
}
}
texture = SDL_CreateTextureFromSurface(renderer, source);
SDLTest_AssertCheck(texture != NULL, "Verify source texture is not NULL");
ret = SDL_SetTextureScaleMode(texture, SDL_SCALEMODE_NEAREST);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_SetTextureScaleMode, expected: true, got: %i", ret);
/* Tiled 9-grid blit - 1.0 scale */
{
SDLTest_Log("tiled 9-grid blit - 1.0 scale");
/* Create reference surface */
SDL_DestroySurface(referenceSurface);
referenceSurface = SDL_CreateSurface(TESTRENDER_SCREEN_W, TESTRENDER_SCREEN_H, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(referenceSurface != NULL, "Verify reference surface is not NULL");
Fill9GridReferenceSurface(referenceSurface, 1, 1, 1, 1);
/* Clear surface. */
clearScreen();
/* Tiled blit. */
rect.x = 0.0f;
rect.y = 0.0f;
rect.w = (float)TESTRENDER_SCREEN_W;
rect.h = (float)TESTRENDER_SCREEN_H;
ret = SDL_RenderTexture9GridTiled(renderer, texture, NULL, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, &rect, 1.0f);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_RenderTexture9GridTiled, expected: true, got: %i", ret);
/* See if it's the same */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
}
/* Tiled 9-grid blit - 2.0 scale */
{
SDLTest_Log("tiled 9-grid blit - 2.0 scale");
/* Create reference surface */
SDL_DestroySurface(referenceSurface);
referenceSurface = SDL_CreateSurface(TESTRENDER_SCREEN_W, TESTRENDER_SCREEN_H, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(referenceSurface != NULL, "Verify reference surface is not NULL");
Fill9GridReferenceSurface(referenceSurface, 2, 2, 2, 2);
/* Clear surface. */
clearScreen();
/* Tiled blit. */
rect.x = 0.0f;
rect.y = 0.0f;
rect.w = (float)TESTRENDER_SCREEN_W;
rect.h = (float)TESTRENDER_SCREEN_H;
ret = SDL_RenderTexture9GridTiled(renderer, texture, NULL, 1.0f, 1.0f, 1.0f, 1.0f, 2.0f, &rect, 2.0f);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_RenderTexture9GridTiled, expected: true, got: %i", ret);
/* See if it's the same */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
}
/* Clean up. */
SDL_DestroySurface(source);
SDL_DestroyTexture(texture);
/* Create complex source surface */
source = SDL_CreateSurface(5, 5, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(source != NULL, "Verify source surface is not NULL");
SDL_WriteSurfacePixel(source, 0, 0, (Uint8)((1) * COLOR_SEPARATION), (Uint8)((1) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 1, 0, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((1) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 2, 0, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((1) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 3, 0, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((1) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 4, 0, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((1) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 0, 1, (Uint8)((1) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 1, 1, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 2, 1, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 3, 1, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 4, 1, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 0, 2, (Uint8)((1) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 1, 2, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 2, 2, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 3, 2, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 4, 2, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((2) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 0, 3, (Uint8)((1) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 1, 3, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 2, 3, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 3, 3, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 4, 3, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 0, 4, (Uint8)((1) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 1, 4, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 2, 4, (Uint8)((2) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 3, 4, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
SDL_WriteSurfacePixel(source, 4, 4, (Uint8)((3) * COLOR_SEPARATION), (Uint8)((3) * COLOR_SEPARATION), 0, 255);
texture = SDL_CreateTextureFromSurface(renderer, source);
SDLTest_AssertCheck(texture != NULL, "Verify source texture is not NULL");
ret = SDL_SetTextureScaleMode(texture, SDL_SCALEMODE_NEAREST);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_SetTextureScaleMode, expected: true, got: %i", ret);
/* complex tiled 9-grid blit - 1.0 scale */
{
SDLTest_Log("complex tiled 9-grid blit - 1.0 scale");
/* Create reference surface */
SDL_DestroySurface(referenceSurface);
referenceSurface = SDL_CreateSurface(TESTRENDER_SCREEN_W, TESTRENDER_SCREEN_H, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(referenceSurface != NULL, "Verify reference surface is not NULL");
Fill9GridReferenceSurface(referenceSurface, 1, 2, 1, 2);
/* Clear surface. */
clearScreen();
/* Tiled blit. */
rect.x = 0.0f;
rect.y = 0.0f;
rect.w = (float)TESTRENDER_SCREEN_W;
rect.h = (float)TESTRENDER_SCREEN_H;
ret = SDL_RenderTexture9GridTiled(renderer, texture, NULL, 1.0f, 2.0f, 1.0f, 2.0f, 1.0f, &rect, 1.0f);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_RenderTexture9GridTiled, expected: true, got: %i", ret);
/* See if it's the same */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
}
/* complex tiled 9-grid blit - 2.0 scale */
{
SDLTest_Log("complex tiled 9-grid blit - 2.0 scale");
/* Create reference surface */
SDL_DestroySurface(referenceSurface);
referenceSurface = SDL_CreateSurface(TESTRENDER_SCREEN_W, TESTRENDER_SCREEN_H, SDL_PIXELFORMAT_RGBA32);
SDLTest_AssertCheck(referenceSurface != NULL, "Verify reference surface is not NULL");
Fill9GridReferenceSurface(referenceSurface, 2, 4, 2, 4);
/* Clear surface. */
clearScreen();
/* Tiled blit. */
rect.x = 0.0f;
rect.y = 0.0f;
rect.w = (float)TESTRENDER_SCREEN_W;
rect.h = (float)TESTRENDER_SCREEN_H;
ret = SDL_RenderTexture9GridTiled(renderer, texture, NULL, 1.0f, 2.0f, 1.0f, 2.0f, 2.0f, &rect, 2.0f);
SDLTest_AssertCheck(ret == true, "Validate results from call to SDL_RenderTexture9GridTiled, expected: true, got: %i", ret);
/* See if it's the same */
compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE);
/* Make current */
SDL_RenderPresent(renderer);
}
/* Clean up. */
SDL_DestroySurface(referenceSurface);
SDL_DestroySurface(source);
SDL_DestroyTexture(texture);
return TEST_COMPLETED;
}
/**
* Blits doing color tests.
*
* \sa SDL_SetTextureColorMod
* \sa SDL_RenderTexture
* \sa SDL_DestroyTexture
*/
static int SDLCALL render_testBlitColor(void *arg)
{
int ret;
SDL_FRect rect;
SDL_Texture *tface;
SDL_Surface *referenceSurface = NULL;
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. */
rect.w = (float)tface->w;
rect.h = (float)tface->h;
ni = TESTRENDER_SCREEN_W - tface->w;
nj = TESTRENDER_SCREEN_H - tface->h;
/* 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, (Uint8)((255 / nj) * j), (Uint8)((255 / ni) * i), (Uint8)((255 / nj) * j));
if (!ret) {
checkFailCount1++;
}
/* Blitting. */
rect.x = (float)i;
rect.y = (float)j;
ret = SDL_RenderTexture(renderer, tface, NULL, &rect);
if (!ret) {
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;
}
typedef enum TestRenderOperation
{
TEST_RENDER_POINT,
TEST_RENDER_LINE,
TEST_RENDER_RECT,
TEST_RENDER_COPY_XRGB,
TEST_RENDER_COPY_ARGB,
} TestRenderOperation;
/**
* Helper that tests a specific operation and blend mode, -1 for color mod, -2 for alpha mod
*/
static void testBlendModeOperation(TestRenderOperation op, int mode, SDL_PixelFormat dst_format)
{
/* Allow up to 2 delta from theoretical value to account for rounding error.
* We allow 2 rounding errors because the software renderer breaks drawing operations into alpha multiplication and a separate blend operation.
*/
const int MAXIMUM_ERROR = 2;
int ret;
SDL_Texture *src = NULL;
SDL_Texture *dst;
SDL_Surface *result;
Uint8 srcR = 10, srcG = 128, srcB = 240, srcA = 100;
Uint8 dstR = 128, dstG = 128, dstB = 128, dstA = 128;
Uint8 expectedR, expectedG, expectedB, expectedA;
Uint8 actualR, actualG, actualB, actualA;
int deltaR, deltaG, deltaB, deltaA;
const char *operation = "UNKNOWN";
const char *mode_name = "UNKNOWN";
/* Create dst surface */
dst = SDL_CreateTexture(renderer, dst_format, SDL_TEXTUREACCESS_TARGET, 3, 3);
SDLTest_AssertCheck(dst != NULL, "Verify dst surface is not NULL");
if (dst == NULL) {
return;
}
if (SDL_ISPIXELFORMAT_ALPHA(dst_format)) {
SDL_BlendMode blendMode = SDL_BLENDMODE_NONE;
ret = SDL_GetTextureBlendMode(dst, &blendMode);
SDLTest_AssertCheck(ret == true, "Verify result from SDL_GetTextureBlendMode(), expected: true, got: %i", ret);
SDLTest_AssertCheck(blendMode == SDL_BLENDMODE_BLEND, "Verify alpha texture blend mode, expected %d, got %" SDL_PRIu32, SDL_BLENDMODE_BLEND, blendMode);
}
/* Set as render target */
SDL_SetRenderTarget(renderer, dst);
/* Clear surface. */
if (!SDL_ISPIXELFORMAT_ALPHA(dst_format)) {
dstA = 255;
}
ret = SDL_SetRenderDrawColor(renderer, dstR, dstG, dstB, dstA);
SDLTest_AssertCheck(ret == true, "Verify result from SDL_SetRenderDrawColor(), expected: true, got: %i", ret);
ret = SDL_RenderClear(renderer);
SDLTest_AssertPass("Call to SDL_RenderClear()");
SDLTest_AssertCheck(ret == true, "Verify result from SDL_RenderClear, expected: true, got: %i", ret);
if (op == TEST_RENDER_COPY_XRGB || op == TEST_RENDER_COPY_ARGB) {
Uint8 pixels[4];
/* Create src surface */
src = SDL_CreateTexture(renderer, op == TEST_RENDER_COPY_XRGB ? SDL_PIXELFORMAT_RGBX32 : SDL_PIXELFORMAT_RGBA32, SDL_TEXTUREACCESS_STATIC, 1, 1);
SDLTest_AssertCheck(src != NULL, "Verify src surface is not NULL");
if (src == NULL) {
return;
}
/* Clear surface. */
if (op == TEST_RENDER_COPY_XRGB) {
srcA = 255;
}
pixels[0] = srcR;
pixels[1] = srcG;
pixels[2] = srcB;
pixels[3] = srcA;
SDL_UpdateTexture(src, NULL, pixels, sizeof(pixels));
/* Set blend mode. */
if (mode >= 0) {
ret = SDL_SetTextureBlendMode(src, (SDL_BlendMode)mode);
SDLTest_AssertPass("Call to SDL_SetTextureBlendMode()");
SDLTest_AssertCheck(ret == true, "Verify result from SDL_SetTextureBlendMode(..., %i), expected: true, got: %i", mode, ret);
} else {
ret = SDL_SetTextureBlendMode(src, SDL_BLENDMODE_BLEND);
SDLTest_AssertPass("Call to SDL_SetTextureBlendMode()");
SDLTest_AssertCheck(ret == true, "Verify result from SDL_SetTextureBlendMode(..., %i), expected: true, got: %i", mode, ret);
}
} else {
/* Set draw color */
ret = SDL_SetRenderDrawColor(renderer, srcR, srcG, srcB, srcA);
SDLTest_AssertCheck(ret == true, "Verify result from SDL_SetRenderDrawColor(), expected: true, got: %i", ret);
/* Set blend mode. */
if (mode >= 0) {
ret = SDL_SetRenderDrawBlendMode(renderer, (SDL_BlendMode)mode);
SDLTest_AssertPass("Call to SDL_SetRenderDrawBlendMode()");
SDLTest_AssertCheck(ret == true, "Verify result from SDL_SetRenderDrawBlendMode(..., %i), expected: true, got: %i", mode, ret);
} else {
ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND);
SDLTest_AssertPass("Call to SDL_SetRenderDrawBlendMode()");
SDLTest_AssertCheck(ret == true, "Verify result from SDL_SetRenderDrawBlendMode(..., %i), expected: true, got: %i", mode, ret);
}
}
/* Test blend mode. */
#define FLOAT(X) ((float)X / 255.0f)
switch (mode) {
case -1:
mode_name = "color modulation";
ret = SDL_SetTextureColorMod(src, srcR, srcG, srcB);
SDLTest_AssertCheck(ret == true, "Validate results from calls to SDL_SetTextureColorMod, expected: true, got: %i", ret);
expectedR = (Uint8)SDL_roundf(SDL_clamp((FLOAT(srcR) * FLOAT(srcR)) * FLOAT(srcA) + FLOAT(dstR) * (1.0f - FLOAT(srcA)), 0.0f, 1.0f) * 255.0f);
expectedG = (Uint8)SDL_roundf(SDL_clamp((FLOAT(srcG) * FLOAT(srcG)) * FLOAT(srcA) + FLOAT(dstG) * (1.0f - FLOAT(srcA)), 0.0f, 1.0f) * 255.0f);
expectedB = (Uint8)SDL_roundf(SDL_clamp((FLOAT(srcB) * FLOAT(srcB)) * FLOAT(srcA) + FLOAT(dstB) * (1.0f - FLOAT(srcA)), 0.0f, 1.0f) * 255.0f);
expectedA = (Uint8)SDL_roundf(SDL_clamp(FLOAT(srcA) + FLOAT(dstA) * (1.0f - FLOAT(srcA)), 0.0f, 1.0f) * 255.0f);
break;
case -2:
mode_name = "alpha modulation";
ret = SDL_SetTextureAlphaMod(src, srcA);
SDLTest_AssertCheck(ret == true, "Validate results from calls to SDL_SetTextureAlphaMod, expected: true, got: %i", ret);
expectedR = (Uint8)SDL_roundf(SDL_clamp(FLOAT(srcR) * (FLOAT(srcA) * FLOAT(srcA)) + FLOAT(dstR) * (1.0f - (FLOAT(srcA) * FLOAT(srcA))), 0.0f, 1.0f) * 255.0f);
expectedG = (Uint8)SDL_roundf(SDL_clamp(FLOAT(srcG) * (FLOAT(srcA) * FLOAT(srcA)) + FLOAT(dstG) * (1.0f - (FLOAT(srcA) * FLOAT(srcA))), 0.0f, 1.0f) * 255.0f);
expectedB = (Uint8)SDL_roundf(SDL_clamp(FLOAT(srcB) * (FLOAT(srcA) * FLOAT(srcA)) + FLOAT(dstB) * (1.0f - (FLOAT(srcA) * FLOAT(srcA))), 0.0f, 1.0f) * 255.0f);
expectedA = (Uint8)SDL_roundf(SDL_clamp((FLOAT(srcA) * FLOAT(srcA)) + FLOAT(dstA) * (1.0f - (FLOAT(srcA) * FLOAT(srcA))), 0.0f, 1.0f) * 255.0f);
break;
case SDL_BLENDMODE_NONE:
mode_name = "SDL_BLENDMODE_NONE";
expectedR = srcR;
expectedG = srcG;