diff --git a/src/textures.c b/src/textures.c index aee5ad972..846b7a708 100644 --- a/src/textures.c +++ b/src/textures.c @@ -1579,26 +1579,24 @@ void ImageFlipVertical(Image *image) // Security check to avoid program crash if ((image->data == NULL) || (image->width == 0) || (image->height == 0)) return; - Color *srcPixels = GetImageData(*image); - Color *dstPixels = (Color *)RL_MALLOC(image->width*image->height*sizeof(Color)); - - for (int y = 0; y < image->height; y++) + if (image->mipmaps > 1) TRACELOG(LOG_WARNING, "Image manipulation only applied to base mipmap level"); + if (image->format >= COMPRESSED_DXT1_RGB) TRACELOG(LOG_WARNING, "Image manipulation not supported for compressed formats"); + else { - for (int x = 0; x < image->width; x++) + int dataSize = GetPixelDataSize(image->width, image->height, image->format); + int bytesPerPixel = dataSize/(image->width*image->height); + + unsigned char *flippedData = (unsigned char *)RL_MALLOC(dataSize); + + for (int i = (image->height - 1), offsetSize = 0; i >= 0; i--) { - dstPixels[y*image->width + x] = srcPixels[(image->height - 1 - y)*image->width + x]; + memcpy(flippedData + offsetSize, ((unsigned char *)image->data) + i*image->width*bytesPerPixel, image->width*bytesPerPixel); + offsetSize += image->width*bytesPerPixel; } + + RL_FREE(image->data); + image->data = flippedData; } - - int format = image->format; - RL_FREE(image->data); - - image->data = dstPixels; - image->format = UNCOMPRESSED_R8G8B8A8; - - ImageFormat(image, format); - - RL_FREE(srcPixels); } // Flip image horizontally