diff options
Diffstat (limited to 'src/textures.c')
| -rw-r--r-- | src/textures.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/textures.c b/src/textures.c index 1c7edac9..4e48d1f7 100644 --- a/src/textures.c +++ b/src/textures.c @@ -1181,13 +1181,18 @@ void ImageAlphaMask(Image *image, Image alphaMask) // In case image is only grayscale, we just add alpha channel if (image->format == UNCOMPRESSED_GRAYSCALE) { - ImageFormat(image, UNCOMPRESSED_GRAY_ALPHA); + unsigned char *data = (unsigned char *)RL_MALLOC(image->width*image->height*2); // Apply alpha mask to alpha channel - for (int i = 0, k = 1; (i < mask.width*mask.height) || (i < image->width*image->height); i++, k += 2) + for (int i = 0, k = 0; (i < mask.width*mask.height) || (i < image->width*image->height); i++, k += 2) { - ((unsigned char *)image->data)[k] = ((unsigned char *)mask.data)[i]; + data[k] = ((unsigned char *)image->data)[i]; + data[k + 1] = ((unsigned char *)mask.data)[i]; } + + RL_FREE(image->data); + image->data = data; + image->format = UNCOMPRESSED_GRAY_ALPHA; } else { |