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SDWebImageWebPCoder
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Update with the final changes from SDWebImage Core

This commit is contained in:
DreamPiggy 2023-07-14 00:11:33 +08:00
parent 8bae908c18
commit c0c65f1f37
1 changed files with 8 additions and 20 deletions
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28
SDWebImageWebPCoder/Classes/SDImageWebPCoder.m
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@ -72,7 +72,7 @@ else OSSpinLockUnlock(&lock##_deprecated);
/// See more in #73
static inline CGContextRef _Nullable CreateWebPCanvas(BOOL hasAlpha, CGSize canvasSize, CGSize thumbnailSize, BOOL preserveAspectRatio) {
// From SDWebImage v5.17.0, use runtime detection of bitmap info instead of hardcode.
CGBitmapInfo bitmapInfo = [SDImageCoderHelper preferredBitmapInfo:hasAlpha];
CGBitmapInfo bitmapInfo = [SDImageCoderHelper preferredPixelFormat:hasAlpha].bitmapInfo;
// Check whether we need to use thumbnail
CGSize scaledSize = [SDImageCoderHelper scaledSizeWithImageSize:CGSizeMake(canvasSize.width, canvasSize.height) scaleSize:thumbnailSize preserveAspectRatio:preserveAspectRatio shouldScaleUp:NO];
CGContextRef canvas = CGBitmapContextCreate(NULL, scaledSize.width, scaledSize.height, 8, 0, [SDImageCoderHelper colorSpaceGetDeviceRGB], bitmapInfo);
@ -171,20 +171,6 @@ WEBP_CSP_MODE ConvertCSPMode(CGBitmapInfo bitmapInfo) {
return MODE_LAST;
}
// TODO, share this logic for multiple coders, or do refactory in v6.0 (The coder plugin should provide image information back to Core, like `CGImageSourceCopyPropertiesAtIndex`)
static inline CGSize SDCalculateScaleDownPixelSize(NSUInteger limitBytes, CGSize originalSize, NSUInteger frameCount, NSUInteger bytesPerPixel) {
if (CGSizeEqualToSize(originalSize, CGSizeZero)) return CGSizeMake(1, 1);
NSUInteger totalFramePixelSize = limitBytes / bytesPerPixel / (frameCount ?: 1);
CGFloat ratio = originalSize.height / originalSize.width;
CGFloat width = sqrt(totalFramePixelSize / ratio);
CGFloat height = width * ratio;
width = MAX(1, floor(width));
height = MAX(1, floor(height));
CGSize size = CGSizeMake(width, height);
return size;
}
@interface SDWebPCoderFrame : NSObject
@property (nonatomic, assign) NSUInteger index; // Frame index (zero based)
@ -328,7 +314,7 @@ static inline CGSize SDCalculateScaleDownPixelSize(NSUInteger limitBytes, CGSize
if (limitBytes > 0) {
// Hack 32 BitsPerPixel
CGSize imageSize = CGSizeMake(canvasWidth, canvasHeight);
CGSize framePixelSize = SDCalculateScaleDownPixelSize(limitBytes, imageSize, frameCount, 4);
CGSize framePixelSize = [SDImageCoderHelper scaledSizeWithImageSize:imageSize limitBytes:limitBytes bytesPerPixel:4 frameCount:frameCount];
// Override thumbnail size
thumbnailSize = framePixelSize;
preserveAspectRatio = YES;
@ -477,7 +463,7 @@ static inline CGSize SDCalculateScaleDownPixelSize(NSUInteger limitBytes, CGSize
if (_limitBytes > 0) {
// Hack 32 BitsPerPixel
CGSize imageSize = CGSizeMake(_canvasWidth, _canvasHeight);
CGSize framePixelSize = SDCalculateScaleDownPixelSize(_limitBytes, imageSize, _frameCount, 4);
CGSize framePixelSize = [SDImageCoderHelper scaledSizeWithImageSize:imageSize limitBytes:_limitBytes bytesPerPixel:4 frameCount:_frameCount];
// Override thumbnail size
_thumbnailSize = framePixelSize;
_preserveAspectRatio = YES;
@ -631,7 +617,8 @@ static inline CGSize SDCalculateScaleDownPixelSize(NSUInteger limitBytes, CGSize
BOOL hasAlpha = config.input.has_alpha;
// From SDWebImage v5.17.0, use runtime detection of bitmap info instead of hardcode.
CGBitmapInfo bitmapInfo = [SDImageCoderHelper preferredBitmapInfo:hasAlpha];
SDImagePixelFormat pixelFormat = [SDImageCoderHelper preferredPixelFormat:hasAlpha];
CGBitmapInfo bitmapInfo = pixelFormat.bitmapInfo;
WEBP_CSP_MODE mode = ConvertCSPMode(bitmapInfo);
if (mode == MODE_LAST) {
NSAssert(NO, @"Unsupported libwebp preferred CGBitmapInfo: %d", bitmapInfo);
@ -659,8 +646,9 @@ static inline CGSize SDCalculateScaleDownPixelSize(NSUInteger limitBytes, CGSize
// Read: https://github.com/path/FastImageCache#byte-alignment
// A properly aligned bytes-per-row value must be a multiple of 8 pixels × bytes per pixel
// For a typical ARGB image, the aligned bytes-per-row value is a multiple of 64.
size_t alignment = [SDImageCoderHelper preferredByteAlignment];
size_t alignment = pixelFormat.alignment;
size_t bytesPerRow = SDByteAlign(width * (bitsPerPixel / 8), alignment);
//size_t bytesPerRow = 6688;
void *rgba = WebPMalloc(bytesPerRow * height);
config.output.is_external_memory = 1;
@ -1069,7 +1057,7 @@ static float GetFloatValueForKey(NSDictionary * _Nonnull dictionary, NSString *
if (_limitBytes > 0) {
// Hack 32 BitsPerPixel
CGSize imageSize = CGSizeMake(_canvasWidth, _canvasHeight);
CGSize framePixelSize = SDCalculateScaleDownPixelSize(_limitBytes, imageSize, _frameCount, 4);
CGSize framePixelSize = [SDImageCoderHelper scaledSizeWithImageSize:imageSize limitBytes:_limitBytes bytesPerPixel:4 frameCount:_frameCount];
// Override thumbnail size
_thumbnailSize = framePixelSize;
_preserveAspectRatio = YES;