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Jul 19th, 2018
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  1. // Convert RGBA image to ARGB image
  2. void PS3TextureChannels_RGBA_To_ARGB(TexRom_t* pTexRom)
  3. {
  4. int numLevels = TexRom_MipMapLevels(pTexRom);
  5. float pixelsPerByte = 1.0f/4.0f;
  6.  
  7. for (int level = 0; level < numLevels-3; level++)
  8. {
  9. unsigned int* pRealTexels = (unsigned int*)TexRom_MipMapImage(pTexRom, level);
  10. for (int i = 0; i < TexRom_MipMapSizeofLevel(pTexRom, level) * pixelsPerByte; i++)
  11. {
  12. unsigned int newPix = pRealTexels[i];
  13.  
  14. char cols[4];
  15. char cols2[4];
  16. memcpy(&cols2[0], &newPix, sizeof(unsigned int));
  17.  
  18. cols[0] = cols2[3]; // ALPHA
  19. cols[1] = cols2[0]; // RED
  20. cols[2] = cols2[1]; // GREEN
  21. cols[3] = cols2[2]; // BLUE
  22.  
  23. memcpy(&pRealTexels[i], &cols[0], sizeof(unsigned int));
  24. }
  25. }
  26. }
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