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Fix the issue when monochome colorspace cause the WebP encoding failed 

Just translate into RGBA first, don't need extra code to re-implements monochrome WebP encoding
This commit is contained in:
DreamPiggy 2024-01-30 15:07:23 +08:00
parent db4603921b
commit 304bed2c4b
1 changed files with 6 additions and 0 deletions
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6
SDWebImageWebPCoder/Classes/SDImageWebPCoder.m
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@ -885,6 +885,12 @@ WEBP_CSP_MODE ConvertCSPMode(CGBitmapInfo bitmapInfo) {
uint8_t *rgba = NULL; // RGBA Buffer managed by CFData, don't call `free` on it, instead call `CFRelease` on `dataRef` uint8_t *rgba = NULL; // RGBA Buffer managed by CFData, don't call `free` on it, instead call `CFRelease` on `dataRef`
// We must prefer the input CGImage's color space, which may contains ICC profile // We must prefer the input CGImage's color space, which may contains ICC profile
CGColorSpaceRef colorSpace = CGImageGetColorSpace(imageRef); CGColorSpaceRef colorSpace = CGImageGetColorSpace(imageRef);
// We only supports RGB colorspace, filter the un-supported one (like Monochrome, CMYK, etc)
if (CGColorSpaceGetModel(colorSpace) != kCGColorSpaceModelRGB) {
// Ignore and convert, we don't know how to encode this colorspace directlly to WebP
// This may cause little visible difference because of colorpsace conversion
colorSpace = NULL;
}
if (!colorSpace) { if (!colorSpace) {
colorSpace = [SDImageCoderHelper colorSpaceGetDeviceRGB]; colorSpace = [SDImageCoderHelper colorSpaceGetDeviceRGB];
} }