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Reviewed ImageConvertToPOT()

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This commit is contained in:
raysan5 2015-08-07 18:00:28 +02:00
parent fd2b0c7c38
commit 07858c3a1f
1 changed files with 135 additions and 128 deletions
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35
src/textures.c
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@ -330,7 +330,6 @@ Texture2D LoadTexture(const char *fileName)
else
{
TraceLog(WARNING, "Texture could not be created");
texture.id = 0;
}
@ -391,7 +390,8 @@ void UnloadImage(Image image)
{
free(image.data);
TraceLog(INFO, "Unloaded image data");
// NOTE: It becomes anoying every time a texture is loaded
//TraceLog(INFO, "Unloaded image data");
}
// Unload texture from GPU memory
@ -519,7 +519,9 @@ Image GetTextureData(Texture2D texture)
// Convert image data to desired format
void ImageConvertFormat(Image *image, int newFormat)
{
if ((image->format != newFormat) && (image->format < 8) && (newFormat < 8))
if (image->format != newFormat)
{
if ((image->format < 8) && (newFormat < 8))
{
Color *pixels = GetImageData(*image);
@ -650,14 +652,15 @@ void ImageConvertFormat(Image *image, int newFormat)
}
else TraceLog(WARNING, "Image data format is compressed, can not be converted");
}
}
// Convert image to POT (power-of-two)
// NOTE: Requirement on OpenGL ES 2.0 (RPI, HTML5)
void ImageConvertToPOT(Image *image, Color fillColor)
{
// TODO: Review for new image struct
/*
Color *pixels = GetImageData(*image); // Get pixels data
// Just add the required amount of pixels at the right and bottom sides of image...
int potWidth = GetNextPOT(image->width);
int potHeight = GetNextPOT(image->height);
@ -665,29 +668,33 @@ void ImageConvertToPOT(Image *image, Color fillColor)
// Check if POT texture generation is required (if texture is not already POT)
if ((potWidth != image->width) || (potHeight != image->height))
{
Color *imgDataPixelPOT = NULL;
Color *pixelsPOT = NULL;
// Generate POT array from NPOT data
imgDataPixelPOT = (Color *)malloc(potWidth * potHeight * sizeof(Color));
pixelsPOT = (Color *)malloc(potWidth * potHeight * sizeof(Color));
for (int j = 0; j < potHeight; j++)
{
for (int i = 0; i < potWidth; i++)
{
if ((j < image->height) && (i < image->width)) imgDataPixelPOT[j*potWidth + i] = image->data[j*image->width + i];
else imgDataPixelPOT[j*potWidth + i] = fillColor;
if ((j < image->height) && (i < image->width)) pixelsPOT[j*potWidth + i] = pixels[j*image->width + i];
else pixelsPOT[j*potWidth + i] = fillColor;
}
}
TraceLog(WARNING, "Image converted to POT: (%ix%i) -> (%ix%i)", image->width, image->height, potWidth, potHeight);
free(image->pixels);
free(pixels); // Free pixels data
free(image->data); // Free old image data
image->pixels = imgDataPixelPOT;
image->width = potWidth;
image->height = potHeight;
int format = image->format; // Store image data format to reconvert later
*image = LoadImageEx(pixelsPOT, potWidth, potHeight);
free(pixelsPOT); // Free POT pixels data
ImageConvertFormat(image, format); // Reconvert image to previous format
}
*/
}
// Copy an image to a new image