Elysian Shadows

Code: Select all

	SDL_Surface *loadedImage = NULL;

	// Get the image location
	imageLoc = fileLoc;

	// Determine the type of image being loaded
	if (fileLoc.find("bmp") != std::string::npos){
		format = BMP;
	} else {
		format = PNG;
	}

	// Load an image file
	loadedImage = IMG_Load(fileLoc.c_str());

	// If the image wasn't loaded properly
	if (loadedImage == NULL){
		printf ("SDL Error loading image file '%s': %s", fileLoc, SDL_GetError());
		return false;
	}

	// Optimize the image
	sur = SDL_DisplayFormatAlpha(loadedImage);

	if (!sur){
		printf ("SDL Error optimizing image file '%s': %s", fileLoc, SDL_GetError());
		return false;
	}

	SDL_FreeSurface(loadedImage);

	return true;

Code: Select all

	// Copy the given surface
	if (sur){
		SDL_FreeSurface(sur);
	}

	sur = SDL_CreateRGBSurface(SDL_SWSURFACE, image->w, image->h, 32,
								0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);

	SDL_BlitSurface(image, NULL, sur, NULL);

Code: Select all

	// Generate the texture using the image given
	glGenTextures(1, &tex);

	glBindTexture(GL_TEXTURE_2D, tex);

	GLenum texFormat = GL_RGBA; // Format used for the texture

	// Decide which format to use
	if (img.GetImage()->format->BytesPerPixel == 4){
		texFormat = GL_RGBA;
	} else if (img.GetImage()->format->BytesPerPixel == 3){
		texFormat = GL_RGB;
	}

	// Create the texture
	glTexImage2D(GL_TEXTURE_2D, 0, 4, img.Width(), img.Height(), 
				0, texFormat, GL_UNSIGNED_BYTE, img.GetImage()->pixels);

	glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
	glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );

	// Get the sizes of the texture
	glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &texWidth);
	glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &texHeight);

	if (glGetError() != GL_NO_ERROR){
		printf ("OpenGL Error - Creating textures failed!");
	}