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	Call SDL_RenderPresent after calling SDL_RenderReadPixels. From "include/SDL_render.h": "If you're using this on the main rendering target, it should be called after rendering and before SDL_RenderPresent()."
		
			
				
	
	
		
			1105 lines
		
	
	
		
			33 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1105 lines
		
	
	
		
			33 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/**
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 * Original code: automated SDL platform test written by Edgar Simo "bobbens"
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 * Extended and extensively updated by aschiffler at ferzkopp dot net
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 */
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#include <stdio.h>
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#include "SDL.h"
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#include "SDL_test.h"
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/* ================= Test Case Implementation ================== */
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#define TESTRENDER_SCREEN_W     80
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#define TESTRENDER_SCREEN_H     60
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#define RENDER_COMPARE_FORMAT  SDL_PIXELFORMAT_ARGB8888
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#define RENDER_COMPARE_AMASK   0xff000000 /**< Alpha bit mask. */
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#define RENDER_COMPARE_RMASK   0x00ff0000 /**< Red bit mask. */
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#define RENDER_COMPARE_GMASK   0x0000ff00 /**< Green bit mask. */
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#define RENDER_COMPARE_BMASK   0x000000ff /**< Blue bit mask. */
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#define ALLOWABLE_ERROR_OPAQUE  0
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#define ALLOWABLE_ERROR_BLENDED 64
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/* Test window and renderer */
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SDL_Window *window = NULL;
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SDL_Renderer *renderer = NULL;
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/* Prototypes for helper functions */
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static int _clearScreen (void);
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static void _compare(SDL_Surface *reference, int allowable_error);
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static int _hasTexAlpha(void);
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static int _hasTexColor(void);
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static SDL_Texture *_loadTestFace(void);
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static int _hasBlendModes(void);
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static int _hasDrawColor(void);
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static int _isSupported(int code);
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/**
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 * Create software renderer for tests
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 */
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void InitCreateRenderer(void *arg)
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{
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  int posX = 100, posY = 100, width = 320, height = 240;
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  renderer = NULL;
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  window = SDL_CreateWindow("render_testCreateRenderer", posX, posY, width, height, 0);
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  SDLTest_AssertPass("SDL_CreateWindow()");
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  SDLTest_AssertCheck(window != NULL, "Check SDL_CreateWindow result");
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  if (window == NULL) {
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      return;
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  }
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  renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
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  SDLTest_AssertPass("SDL_CreateRenderer()");
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  SDLTest_AssertCheck(renderer != 0, "Check SDL_CreateRenderer result");
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  if (renderer == NULL) {
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      SDL_DestroyWindow(window);
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      return;
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  }
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}
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/*
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 * Destroy renderer for tests
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 */
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void CleanupDestroyRenderer(void *arg)
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{
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  if (renderer != NULL) {
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     SDL_DestroyRenderer(renderer);
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     renderer = NULL;
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     SDLTest_AssertPass("SDL_DestroyRenderer()");
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  }
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  if (window != NULL) {
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     SDL_DestroyWindow(window);
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     window = NULL;
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     SDLTest_AssertPass("SDL_DestroyWindow");
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  }
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}
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/**
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 * @brief Tests call to SDL_GetNumRenderDrivers
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 *
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 * \sa
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 * http://wiki.libsdl.org/SDL_GetNumRenderDrivers
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 */
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int
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render_testGetNumRenderDrivers(void *arg)
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{
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  int n;
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  n = SDL_GetNumRenderDrivers();
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  SDLTest_AssertCheck(n >= 1, "Number of renderers >= 1, reported as %i", n);
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  return TEST_COMPLETED;
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}
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/**
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 * @brief Tests the SDL primitives for rendering.
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 *
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 * \sa
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 * http://wiki.libsdl.org/SDL_SetRenderDrawColor
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 * http://wiki.libsdl.org/SDL_RenderFillRect
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 * http://wiki.libsdl.org/SDL_RenderDrawLine
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 *
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 */
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int render_testPrimitives (void *arg)
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{
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   int ret;
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   int x, y;
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   SDL_Rect rect;
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   SDL_Surface *referenceSurface = NULL;
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   int checkFailCount1;
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   int checkFailCount2;
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   /* Clear surface. */
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   _clearScreen();
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   /* Need drawcolor or just skip test. */
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   SDLTest_AssertCheck(_hasDrawColor(), "_hasDrawColor");
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   /* Draw a rectangle. */
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   rect.x = 40;
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   rect.y = 0;
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   rect.w = 40;
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   rect.h = 80;
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   ret = SDL_SetRenderDrawColor(renderer, 13, 73, 200, SDL_ALPHA_OPAQUE );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
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   ret = SDL_RenderFillRect(renderer, &rect );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderFillRect, expected: 0, got: %i", ret);
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   /* Draw a rectangle. */
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   rect.x = 10;
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   rect.y = 10;
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   rect.w = 60;
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   rect.h = 40;
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   ret = SDL_SetRenderDrawColor(renderer, 200, 0, 100, SDL_ALPHA_OPAQUE );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
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   ret = SDL_RenderFillRect(renderer, &rect );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderFillRect, expected: 0, got: %i", ret);
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   /* Draw some points like so:
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    * X.X.X.X..
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    * .X.X.X.X.
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    * X.X.X.X.. */
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   checkFailCount1 = 0;
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   checkFailCount2 = 0;
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   for (y=0; y<3; y++) {
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      for (x = y % 2; x<TESTRENDER_SCREEN_W; x+=2) {
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         ret = SDL_SetRenderDrawColor(renderer, x*y, x*y/2, x*y/3, SDL_ALPHA_OPAQUE );
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         if (ret != 0) checkFailCount1++;
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         ret = SDL_RenderDrawPoint(renderer, x, y );
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         if (ret != 0) checkFailCount2++;
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      }
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   }
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   SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_SetRenderDrawColor, expected: 0, got: %i", checkFailCount1);
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   SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_RenderDrawPoint, expected: 0, got: %i", checkFailCount2);
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   /* Draw some lines. */
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   ret = SDL_SetRenderDrawColor(renderer, 0, 255, 0, SDL_ALPHA_OPAQUE );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor");
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   ret = SDL_RenderDrawLine(renderer, 0, 30, TESTRENDER_SCREEN_W, 30 );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderDrawLine, expected: 0, got: %i", ret);
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   ret = SDL_SetRenderDrawColor(renderer, 55, 55, 5, SDL_ALPHA_OPAQUE );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
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   ret = SDL_RenderDrawLine(renderer, 40, 30, 40, 60 );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderDrawLine, expected: 0, got: %i", ret);
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   ret = SDL_SetRenderDrawColor(renderer, 5, 105, 105, SDL_ALPHA_OPAQUE );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
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   ret = SDL_RenderDrawLine(renderer, 0, 0, 29, 29 );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderDrawLine, expected: 0, got: %i", ret);
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   ret = SDL_RenderDrawLine(renderer, 29, 30, 0, 59 );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderDrawLine, expected: 0, got: %i", ret);
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   ret = SDL_RenderDrawLine(renderer, 79, 0, 50, 29 );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderDrawLine, expected: 0, got: %i", ret);
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   ret = SDL_RenderDrawLine(renderer, 79, 59, 50, 30 );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderDrawLine, expected: 0, got: %i", ret);
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   /* See if it's the same. */
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   referenceSurface = SDLTest_ImagePrimitives();
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   _compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE );
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   /* Make current */
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   SDL_RenderPresent(renderer);
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   /* Clean up. */
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   SDL_FreeSurface(referenceSurface);
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   referenceSurface = NULL;
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   return TEST_COMPLETED;
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}
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/**
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 * @brief Tests the SDL primitives with alpha for rendering.
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 *
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 * \sa
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 * http://wiki.libsdl.org/SDL_SetRenderDrawColor
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 * http://wiki.libsdl.org/SDL_SetRenderDrawBlendMode
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 * http://wiki.libsdl.org/SDL_RenderFillRect
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 */
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int render_testPrimitivesBlend (void *arg)
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{
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   int ret;
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   int i, j;
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   SDL_Rect rect;
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   SDL_Surface *referenceSurface = NULL;
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   int checkFailCount1;
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   int checkFailCount2;
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   int checkFailCount3;
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   /* Clear surface. */
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   _clearScreen();
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   /* Need drawcolor and blendmode or just skip test. */
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   SDLTest_AssertCheck(_hasDrawColor(), "_hasDrawColor");
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   SDLTest_AssertCheck(_hasBlendModes(), "_hasBlendModes");
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   /* Create some rectangles for each blend mode. */
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   ret = SDL_SetRenderDrawColor(renderer, 255, 255, 255, 0 );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
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   ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawBlendMode, expected: 0, got: %i", ret);
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   ret = SDL_RenderFillRect(renderer, NULL );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderFillRect, expected: 0, got: %i", ret);
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   rect.x = 10;
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   rect.y = 25;
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   rect.w = 40;
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   rect.h = 25;
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   ret = SDL_SetRenderDrawColor(renderer, 240, 10, 10, 75 );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
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   ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_ADD );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawBlendMode, expected: 0, got: %i", ret);
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   ret = SDL_RenderFillRect(renderer, &rect );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderFillRect, expected: 0, got: %i", ret);
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   rect.x = 30;
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   rect.y = 40;
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   rect.w = 45;
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   rect.h = 15;
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   ret = SDL_SetRenderDrawColor(renderer, 10, 240, 10, 100 );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
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   ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawBlendMode, expected: 0, got: %i", ret);
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   ret = SDL_RenderFillRect(renderer, &rect );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderFillRect, expected: 0, got: %i", ret);
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   rect.x = 25;
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   rect.y = 25;
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   rect.w = 25;
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   rect.h = 25;
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   ret = SDL_SetRenderDrawColor(renderer, 10, 10, 240, 125 );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawColor, expected: 0, got: %i", ret);
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   ret = SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_SetRenderDrawBlendMode, expected: 0, got: %i", ret);
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   ret = SDL_RenderFillRect(renderer, &rect );
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   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderFillRect, expected: 0, got: %i", ret);
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   /* Draw blended lines, lines for everyone. */
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   checkFailCount1 = 0;
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   checkFailCount2 = 0;
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   checkFailCount3 = 0;
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   for (i=0; i<TESTRENDER_SCREEN_W; i+=2)  {
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      ret = SDL_SetRenderDrawColor(renderer, 60+2*i, 240-2*i, 50, 3*i );
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      if (ret != 0) checkFailCount1++;
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      ret = SDL_SetRenderDrawBlendMode(renderer,(((i/2)%3)==0) ? SDL_BLENDMODE_BLEND :
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            (((i/2)%3)==1) ? SDL_BLENDMODE_ADD : SDL_BLENDMODE_NONE );
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      if (ret != 0) checkFailCount2++;
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      ret = SDL_RenderDrawLine(renderer, 0, 0, i, 59 );
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      if (ret != 0) checkFailCount3++;
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   }
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   SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_SetRenderDrawColor, expected: 0, got: %i", checkFailCount1);
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   SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_SetRenderDrawBlendMode, expected: 0, got: %i", checkFailCount2);
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   SDLTest_AssertCheck(checkFailCount3 == 0, "Validate results from calls to SDL_RenderDrawLine, expected: 0, got: %i", checkFailCount3);
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   checkFailCount1 = 0;
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   checkFailCount2 = 0;
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   checkFailCount3 = 0;
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   for (i=0; i<TESTRENDER_SCREEN_H; i+=2)  {
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      ret = SDL_SetRenderDrawColor(renderer, 60+2*i, 240-2*i, 50, 3*i );
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      if (ret != 0) checkFailCount1++;
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      ret = SDL_SetRenderDrawBlendMode(renderer,(((i/2)%3)==0) ? SDL_BLENDMODE_BLEND :
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            (((i/2)%3)==1) ? SDL_BLENDMODE_ADD : SDL_BLENDMODE_NONE );
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      if (ret != 0) checkFailCount2++;
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      ret = SDL_RenderDrawLine(renderer, 0, 0, 79, i );
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      if (ret != 0) checkFailCount3++;
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   }
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   SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_SetRenderDrawColor, expected: 0, got: %i", checkFailCount1);
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   SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_SetRenderDrawBlendMode, expected: 0, got: %i", checkFailCount2);
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   SDLTest_AssertCheck(checkFailCount3 == 0, "Validate results from calls to SDL_RenderDrawLine, expected: 0, got: %i", checkFailCount3);
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						|
 | 
						|
   /* Draw points. */
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						|
   checkFailCount1 = 0;
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						|
   checkFailCount2 = 0;
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						|
   checkFailCount3 = 0;
 | 
						|
   for (j=0; j<TESTRENDER_SCREEN_H; j+=3) {
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      for (i=0; i<TESTRENDER_SCREEN_W; i+=3) {
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         ret = SDL_SetRenderDrawColor(renderer, j*4, i*3, j*4, i*3 );
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						|
         if (ret != 0) checkFailCount1++;
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						|
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						|
         ret = SDL_SetRenderDrawBlendMode(renderer, ((((i+j)/3)%3)==0) ? SDL_BLENDMODE_BLEND :
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               ((((i+j)/3)%3)==1) ? SDL_BLENDMODE_ADD : SDL_BLENDMODE_NONE );
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						|
         if (ret != 0) checkFailCount2++;
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						|
 | 
						|
         ret = SDL_RenderDrawPoint(renderer, i, j );
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						|
         if (ret != 0) checkFailCount3++;
 | 
						|
      }
 | 
						|
   }
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						|
   SDLTest_AssertCheck(checkFailCount1 == 0, "Validate results from calls to SDL_SetRenderDrawColor, expected: 0, got: %i", checkFailCount1);
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						|
   SDLTest_AssertCheck(checkFailCount2 == 0, "Validate results from calls to SDL_SetRenderDrawBlendMode, expected: 0, got: %i", checkFailCount2);
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						|
   SDLTest_AssertCheck(checkFailCount3 == 0, "Validate results from calls to SDL_RenderDrawPoint, expected: 0, got: %i", checkFailCount3);
 | 
						|
 | 
						|
   /* See if it's the same. */
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						|
   referenceSurface = SDLTest_ImagePrimitivesBlend();
 | 
						|
   _compare(referenceSurface, ALLOWABLE_ERROR_BLENDED );
 | 
						|
 | 
						|
   /* Make current */
 | 
						|
   SDL_RenderPresent(renderer);
 | 
						|
 | 
						|
   /* Clean up. */
 | 
						|
   SDL_FreeSurface(referenceSurface);
 | 
						|
   referenceSurface = NULL;
 | 
						|
 | 
						|
   return TEST_COMPLETED;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
 | 
						|
/**
 | 
						|
 * @brief Tests some blitting routines.
 | 
						|
 *
 | 
						|
 * \sa
 | 
						|
 * http://wiki.libsdl.org/SDL_RenderCopy
 | 
						|
 * http://wiki.libsdl.org/SDL_DestroyTexture
 | 
						|
 */
 | 
						|
int
 | 
						|
render_testBlit(void *arg)
 | 
						|
{
 | 
						|
   int ret;
 | 
						|
   SDL_Rect rect;
 | 
						|
   SDL_Texture *tface;
 | 
						|
   SDL_Surface *referenceSurface = NULL;
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						|
   Uint32 tformat;
 | 
						|
   int taccess, tw, th;
 | 
						|
   int i, j, ni, nj;
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						|
   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. */
 | 
						|
   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 );
 | 
						|
 | 
						|
   /* Make current */
 | 
						|
   SDL_RenderPresent(renderer);
 | 
						|
 | 
						|
   /* Clean up. */
 | 
						|
   SDL_DestroyTexture( tface );
 | 
						|
   SDL_FreeSurface(referenceSurface);
 | 
						|
   referenceSurface = NULL;
 | 
						|
 | 
						|
   return TEST_COMPLETED;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
/**
 | 
						|
 * @brief Blits doing color tests.
 | 
						|
 *
 | 
						|
 * \sa
 | 
						|
 * http://wiki.libsdl.org/SDL_SetTextureColorMod
 | 
						|
 * http://wiki.libsdl.org/SDL_RenderCopy
 | 
						|
 * http://wiki.libsdl.org/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;
 | 
						|
 | 
						|
   /* Clear surface. */
 | 
						|
   _clearScreen();
 | 
						|
 | 
						|
   /* 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 );
 | 
						|
 | 
						|
   /* Make current */
 | 
						|
   SDL_RenderPresent(renderer);
 | 
						|
 | 
						|
   /* Clean up. */
 | 
						|
   SDL_DestroyTexture( tface );
 | 
						|
   SDL_FreeSurface(referenceSurface);
 | 
						|
   referenceSurface = NULL;
 | 
						|
 | 
						|
   return TEST_COMPLETED;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
/**
 | 
						|
 * @brief Tests blitting with alpha.
 | 
						|
 *
 | 
						|
 * \sa
 | 
						|
 * http://wiki.libsdl.org/SDL_SetTextureAlphaMod
 | 
						|
 * http://wiki.libsdl.org/SDL_RenderCopy
 | 
						|
 * http://wiki.libsdl.org/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;
 | 
						|
 | 
						|
   /* 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. */
 | 
						|
   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 );
 | 
						|
 | 
						|
   /* Make current */
 | 
						|
   SDL_RenderPresent(renderer);
 | 
						|
 | 
						|
   /* 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/SDL_SetTextureBlendMode
 | 
						|
 * http://wiki.libsdl.org/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/SDL_SetTextureColorMod
 | 
						|
 * http://wiki.libsdl.org/SDL_SetTextureAlphaMod
 | 
						|
 * http://wiki.libsdl.org/SDL_SetTextureBlendMode
 | 
						|
 * http://wiki.libsdl.org/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, then Present */
 | 
						|
   _compare(referenceSurface, ALLOWABLE_ERROR_OPAQUE );
 | 
						|
   SDL_RenderPresent(renderer);
 | 
						|
 | 
						|
   SDL_FreeSurface(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_FreeSurface(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_FreeSurface(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_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);
 | 
						|
 | 
						|
   /* Make current */
 | 
						|
   SDL_RenderPresent(renderer);
 | 
						|
 | 
						|
   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/SDL_SetRenderDrawColor
 | 
						|
 * http://wiki.libsdl.org/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/SDL_SetRenderDrawBlendMode
 | 
						|
 * http://wiki.libsdl.org/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/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/SDL_SetTextureColorMod
 | 
						|
 * http://wiki.libsdl.org/SDL_GetTextureColorMod
 | 
						|
 * http://wiki.libsdl.org/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/SDL_SetTextureAlphaMod
 | 
						|
 *  http://wiki.libsdl.org/SDL_GetTextureAlphaMod
 | 
						|
 *  http://wiki.libsdl.org/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/SDL_RenderReadPixels
 | 
						|
 * http://wiki.libsdl.org/SDL_CreateRGBSurfaceFrom
 | 
						|
 * http://wiki.libsdl.org/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/SDL_SetRenderDrawColor
 | 
						|
 * http://wiki.libsdl.org/SDL_RenderClear
 | 
						|
 * http://wiki.libsdl.org/SDL_RenderPresent
 | 
						|
 * http://wiki.libsdl.org/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_RenderClear(renderer);
 | 
						|
   SDLTest_AssertCheck(ret == 0, "Validate result from SDL_RenderClear, expected: 0, got: %i", ret);
 | 
						|
 | 
						|
   /* Make current */
 | 
						|
   SDL_RenderPresent(renderer);
 | 
						|
 | 
						|
   /* 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_testBlit, "render_testBlit", "Tests blitting", TEST_ENABLED };
 | 
						|
 | 
						|
static const SDLTest_TestCaseReference renderTest5 =
 | 
						|
        { (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 renderTest6 =
 | 
						|
        { (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 renderTest7 =
 | 
						|
        {  (SDLTest_TestCaseFp)render_testBlitBlend, "render_testBlitBlend", "Tests blitting with blending", TEST_DISABLED };
 | 
						|
 | 
						|
/* Sequence of Render test cases */
 | 
						|
static const SDLTest_TestCaseReference *renderTests[] =  {
 | 
						|
    &renderTest1, &renderTest2, &renderTest3, &renderTest4, &renderTest5, &renderTest6, &renderTest7, NULL
 | 
						|
};
 | 
						|
 | 
						|
/* Render test suite (global) */
 | 
						|
SDLTest_TestSuiteReference renderTestSuite = {
 | 
						|
    "Render",
 | 
						|
    InitCreateRenderer,
 | 
						|
    renderTests,
 | 
						|
    CleanupDestroyRenderer
 | 
						|
};
 |