UnrealXR/raylib
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Reviewed ImageConvertToPOT()

Browse source
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
Download patch file Download diff file Expand all files Collapse all files

263
src/textures.c
View file

@ -330,7 +330,6 @@ Texture2D LoadTexture(const char *fileName)
else else
{ {
TraceLog(WARNING, "Texture could not be created"); TraceLog(WARNING, "Texture could not be created");
texture.id = 0; texture.id = 0;
} }
@ -391,7 +390,8 @@ void UnloadImage(Image image)
{ {
free(image.data); 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 // Unload texture from GPU memory
@ -519,136 +519,139 @@ Image GetTextureData(Texture2D texture)
// Convert image data to desired format // Convert image data to desired format
void ImageConvertFormat(Image *image, int newFormat) void ImageConvertFormat(Image *image, int newFormat)
{ {
if ((image->format != newFormat) && (image->format < 8) && (newFormat < 8)) if (image->format != newFormat)
{ {
Color *pixels = GetImageData(*image); if ((image->format < 8) && (newFormat < 8))
free(image->data);
image->format = newFormat;
int k = 0;
switch (image->format)
{ {
case UNCOMPRESSED_GRAYSCALE: Color *pixels = GetImageData(*image);
{
image->data = (unsigned char *)malloc(image->width*image->height*sizeof(unsigned char)); free(image->data);
for (int i = 0; i < image->width*image->height; i++) image->format = newFormat;
{
((unsigned char *)image->data)[i] = (unsigned char)((float)pixels[k].r*0.299f + (float)pixels[k].g*0.587f + (float)pixels[k].b*0.114f);
k++;
}
} break;
case UNCOMPRESSED_GRAY_ALPHA:
{
image->data = (unsigned char *)malloc(image->width*image->height*2*sizeof(unsigned char));
for (int i = 0; i < image->width*image->height*2; i += 2)
{
((unsigned char *)image->data)[i] = (unsigned char)((float)pixels[k].r*0.299f + (float)pixels[k].g*0.587f + (float)pixels[k].b*0.114f);
((unsigned char *)image->data)[i + 1] = pixels[k].a;
k++;
}
} break; int k = 0;
case UNCOMPRESSED_R5G6B5:
switch (image->format)
{ {
image->data = (unsigned short *)malloc(image->width*image->height*sizeof(unsigned short)); case UNCOMPRESSED_GRAYSCALE:
unsigned char r;
unsigned char g;
unsigned char b;
for (int i = 0; i < image->width*image->height; i++)
{ {
r = (unsigned char)(round((float)pixels[k].r*31/255)); image->data = (unsigned char *)malloc(image->width*image->height*sizeof(unsigned char));
g = (unsigned char)(round((float)pixels[k].g*63/255));
b = (unsigned char)(round((float)pixels[k].b*31/255));
((unsigned short *)image->data)[i] = (unsigned short)r << 11 | (unsigned short)g << 5 | (unsigned short)b; for (int i = 0; i < image->width*image->height; i++)
{
k++; ((unsigned char *)image->data)[i] = (unsigned char)((float)pixels[k].r*0.299f + (float)pixels[k].g*0.587f + (float)pixels[k].b*0.114f);
} k++;
}
} break;
case UNCOMPRESSED_R8G8B8: } break;
{ case UNCOMPRESSED_GRAY_ALPHA:
image->data = (unsigned char *)malloc(image->width*image->height*3*sizeof(unsigned char));
for (int i = 0; i < image->width*image->height*3; i += 3)
{ {
((unsigned char *)image->data)[i] = pixels[k].r; image->data = (unsigned char *)malloc(image->width*image->height*2*sizeof(unsigned char));
((unsigned char *)image->data)[i + 1] = pixels[k].g;
((unsigned char *)image->data)[i + 2] = pixels[k].b;
k++;
}
} break;
case UNCOMPRESSED_R5G5B5A1:
{
image->data = (unsigned short *)malloc(image->width*image->height*sizeof(unsigned short));
unsigned char r;
unsigned char g;
unsigned char b;
unsigned char a = 1;
for (int i = 0; i < image->width*image->height; i++)
{
r = (unsigned char)(round((float)pixels[k].r*31/255));
g = (unsigned char)(round((float)pixels[k].g*31/255));
b = (unsigned char)(round((float)pixels[k].b*31/255));
a = (pixels[k].a > 50) ? 1 : 0;
((unsigned short *)image->data)[i] = (unsigned short)r << 11 | (unsigned short)g << 6 | (unsigned short)b << 1| (unsigned short)a; for (int i = 0; i < image->width*image->height*2; i += 2)
{
((unsigned char *)image->data)[i] = (unsigned char)((float)pixels[k].r*0.299f + (float)pixels[k].g*0.587f + (float)pixels[k].b*0.114f);
((unsigned char *)image->data)[i + 1] = pixels[k].a;
k++;
}
k++; } break;
} case UNCOMPRESSED_R5G6B5:
} break;
case UNCOMPRESSED_R4G4B4A4:
{
image->data = (unsigned short *)malloc(image->width*image->height*sizeof(unsigned short));
unsigned char r;
unsigned char g;
unsigned char b;
unsigned char a;
for (int i = 0; i < image->width*image->height; i++)
{ {
r = (unsigned char)(round((float)pixels[k].r*15/255)); image->data = (unsigned short *)malloc(image->width*image->height*sizeof(unsigned short));
g = (unsigned char)(round((float)pixels[k].g*15/255));
b = (unsigned char)(round((float)pixels[k].b*15/255));
a = (unsigned char)(round((float)pixels[k].a*15/255));
((unsigned short *)image->data)[i] = (unsigned short)r << 12 | (unsigned short)g << 8| (unsigned short)b << 4| (unsigned short)a; unsigned char r;
unsigned char g;
unsigned char b;
for (int i = 0; i < image->width*image->height; i++)
{
r = (unsigned char)(round((float)pixels[k].r*31/255));
g = (unsigned char)(round((float)pixels[k].g*63/255));
b = (unsigned char)(round((float)pixels[k].b*31/255));
((unsigned short *)image->data)[i] = (unsigned short)r << 11 | (unsigned short)g << 5 | (unsigned short)b;
k++; k++;
} }
} break; } break;
case UNCOMPRESSED_R8G8B8A8: case UNCOMPRESSED_R8G8B8:
{
image->data = (unsigned char *)malloc(image->width*image->height*4*sizeof(unsigned char));
for (int i = 0; i < image->width*image->height*4; i += 4)
{ {
((unsigned char *)image->data)[i] = pixels[k].r; image->data = (unsigned char *)malloc(image->width*image->height*3*sizeof(unsigned char));
((unsigned char *)image->data)[i + 1] = pixels[k].g;
((unsigned char *)image->data)[i + 2] = pixels[k].b; for (int i = 0; i < image->width*image->height*3; i += 3)
((unsigned char *)image->data)[i + 3] = pixels[k].a; {
k++; ((unsigned char *)image->data)[i] = pixels[k].r;
} ((unsigned char *)image->data)[i + 1] = pixels[k].g;
} break; ((unsigned char *)image->data)[i + 2] = pixels[k].b;
default: break; k++;
}
} break;
case UNCOMPRESSED_R5G5B5A1:
{
image->data = (unsigned short *)malloc(image->width*image->height*sizeof(unsigned short));
unsigned char r;
unsigned char g;
unsigned char b;
unsigned char a = 1;
for (int i = 0; i < image->width*image->height; i++)
{
r = (unsigned char)(round((float)pixels[k].r*31/255));
g = (unsigned char)(round((float)pixels[k].g*31/255));
b = (unsigned char)(round((float)pixels[k].b*31/255));
a = (pixels[k].a > 50) ? 1 : 0;
((unsigned short *)image->data)[i] = (unsigned short)r << 11 | (unsigned short)g << 6 | (unsigned short)b << 1| (unsigned short)a;
k++;
}
} break;
case UNCOMPRESSED_R4G4B4A4:
{
image->data = (unsigned short *)malloc(image->width*image->height*sizeof(unsigned short));
unsigned char r;
unsigned char g;
unsigned char b;
unsigned char a;
for (int i = 0; i < image->width*image->height; i++)
{
r = (unsigned char)(round((float)pixels[k].r*15/255));
g = (unsigned char)(round((float)pixels[k].g*15/255));
b = (unsigned char)(round((float)pixels[k].b*15/255));
a = (unsigned char)(round((float)pixels[k].a*15/255));
((unsigned short *)image->data)[i] = (unsigned short)r << 12 | (unsigned short)g << 8| (unsigned short)b << 4| (unsigned short)a;
k++;
}
} break;
case UNCOMPRESSED_R8G8B8A8:
{
image->data = (unsigned char *)malloc(image->width*image->height*4*sizeof(unsigned char));
for (int i = 0; i < image->width*image->height*4; i += 4)
{
((unsigned char *)image->data)[i] = pixels[k].r;
((unsigned char *)image->data)[i + 1] = pixels[k].g;
((unsigned char *)image->data)[i + 2] = pixels[k].b;
((unsigned char *)image->data)[i + 3] = pixels[k].a;
k++;
}
} break;
default: break;
}
free(pixels);
} }
else TraceLog(WARNING, "Image data format is compressed, can not be converted");
free(pixels);
} }
else TraceLog(WARNING, "Image data format is compressed, can not be converted");
} }
@ -656,8 +659,8 @@ void ImageConvertFormat(Image *image, int newFormat)
// NOTE: Requirement on OpenGL ES 2.0 (RPI, HTML5) // NOTE: Requirement on OpenGL ES 2.0 (RPI, HTML5)
void ImageConvertToPOT(Image *image, Color fillColor) 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... // Just add the required amount of pixels at the right and bottom sides of image...
int potWidth = GetNextPOT(image->width); int potWidth = GetNextPOT(image->width);
int potHeight = GetNextPOT(image->height); 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) // Check if POT texture generation is required (if texture is not already POT)
if ((potWidth != image->width) || (potHeight != image->height)) if ((potWidth != image->width) || (potHeight != image->height))
{ {
Color *imgDataPixelPOT = NULL; Color *pixelsPOT = NULL;
// Generate POT array from NPOT data // 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 j = 0; j < potHeight; j++)
{ {
for (int i = 0; i < potWidth; i++) for (int i = 0; i < potWidth; i++)
{ {
if ((j < image->height) && (i < image->width)) imgDataPixelPOT[j*potWidth + i] = image->data[j*image->width + i]; if ((j < image->height) && (i < image->width)) pixelsPOT[j*potWidth + i] = pixels[j*image->width + i];
else imgDataPixelPOT[j*potWidth + i] = fillColor; else pixelsPOT[j*potWidth + i] = fillColor;
} }
} }
TraceLog(WARNING, "Image converted to POT: (%ix%i) -> (%ix%i)", image->width, image->height, potWidth, potHeight); 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
int format = image->format; // Store image data format to reconvert later
*image = LoadImageEx(pixelsPOT, potWidth, potHeight);
free(pixelsPOT); // Free POT pixels data
image->pixels = imgDataPixelPOT; ImageConvertFormat(image, format); // Reconvert image to previous format
image->width = potWidth;
image->height = potHeight;
} }
*/
} }
// Copy an image to a new image // Copy an image to a new image