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Support loading 16 bit images; 

With 1, 2, or 4 channels;
This commit is contained in:
bjorn 2020-05-10 02:35:13 -06:00
parent 6539bc1bd2
commit 95635b4b02
1 changed files with 20 additions and 1 deletions
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21
src/modules/data/textureData.c
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@ -494,7 +494,26 @@ TextureData* lovrTextureDataInitFromBlob(TextureData* textureData, Blob* blob, b
int width, height;
int length = (int) blob->size;
stbi_set_flip_vertically_on_load(flip);
if (stbi_is_hdr_from_memory(blob->data, length)) {
if (stbi_is_16_bit_from_memory(blob->data, length)) {
int channels;
textureData->blob->data = stbi_load_16_from_memory(blob->data, length, &width, &height, &channels, 0);
switch (channels) {
case 1:
textureData->format = FORMAT_R16;
textureData->blob->size = 2 * width * height;
break;
case 2:
textureData->format = FORMAT_RG16;
textureData->blob->size = 4 * width * height;
break;
case 4:
textureData->format = FORMAT_RGBA16;
textureData->blob->size = 8 * width * height;
break;
default:
lovrThrow("Unsupported channel count for 16 bit image: %d", channels);
}
} else if (stbi_is_hdr_from_memory(blob->data, length)) {
textureData->format = FORMAT_RGBA32F;
textureData->blob->data = stbi_loadf_from_memory(blob->data, length, &width, &height, NULL, 4);
textureData->blob->size = 16 * width * height;