Adopt UIGraphicsImageRenderer API
Summary: Apple suggested to this new API on iOS 10+. > // Any new bitmap drawing code is encouraged to use UIGraphicsImageRenderer in lieu of this API. WWDC18 Reference: https://developer.apple.com/videos/play/wwdc2018/219/ > Use UIGraphicsImageRenderer to create and draw to an image buffer Supports Wide Color, unlike UIGraphicsBeginImageContext() Combine with UIImageView for efficient offscreen rendering Per https://nshipster.com/image-resizing/#performance-benchmarks, the new API runs even faster than the C version, probably due to more smart context reuses/management. Changelog: [iOS][Changed] - Adopt UIGraphicsImageRenderer API Reviewed By: philIip Differential Revision: D35699584 fbshipit-source-id: 7a1e2109d5e121fb396c1014f4ed0a892211b0cc
This commit is contained in:
Chaoshuai Lu
Facebook GitHub Bot
Родитель
7454044542
Коммит
d70d7fd0b3
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@ -22,10 +22,13 @@ UIImage *RCTBlurredImageWithRadius(UIImage *inputImage, CGFloat radius)
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if (CGImageGetBitsPerPixel(imageRef) != 32 ||
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CGImageGetBitsPerComponent(imageRef) != 8 ||
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!((CGImageGetBitmapInfo(imageRef) & kCGBitmapAlphaInfoMask))) {
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UIGraphicsBeginImageContextWithOptions(inputImage.size, NO, inputImage.scale);
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[inputImage drawAtPoint:CGPointZero];
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imageRef = UIGraphicsGetImageFromCurrentImageContext().CGImage;
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UIGraphicsEndImageContext();
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UIGraphicsImageRendererFormat *const rendererFormat = [UIGraphicsImageRendererFormat defaultFormat];
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rendererFormat.scale = inputImage.scale;
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UIGraphicsImageRenderer *const renderer = [[UIGraphicsImageRenderer alloc] initWithSize:inputImage.size format:rendererFormat];
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imageRef = [renderer imageWithActions:^(UIGraphicsImageRendererContext *_Nonnull context) {
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[inputImage drawAtPoint:CGPointZero];
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}].CGImage;
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}
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vImage_Buffer buffer1, buffer2;
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@ -51,7 +54,7 @@ UIImage *RCTBlurredImageWithRadius(UIImage *inputImage, CGFloat radius)
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//create temp buffer
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vImage_Error tempBufferSize = vImageBoxConvolve_ARGB8888(&buffer1, &buffer2, NULL, 0, 0, boxSize, boxSize,
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NULL, kvImageGetTempBufferSize | kvImageEdgeExtend);
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NULL, kvImageGetTempBufferSize | kvImageEdgeExtend);
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if (tempBufferSize < 0) {
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free(buffer1.data);
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free(buffer2.data);
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@ -370,13 +370,14 @@ UIImage *__nullable RCTTransformImage(UIImage *image,
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}
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BOOL opaque = !RCTImageHasAlpha(image.CGImage);
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UIGraphicsBeginImageContextWithOptions(destSize, opaque, destScale);
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CGContextRef currentContext = UIGraphicsGetCurrentContext();
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CGContextConcatCTM(currentContext, transform);
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[image drawAtPoint:CGPointZero];
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UIImage *result = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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return result;
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UIGraphicsImageRendererFormat *const rendererFormat = [UIGraphicsImageRendererFormat defaultFormat];
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rendererFormat.opaque = opaque;
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rendererFormat.scale = destScale;
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UIGraphicsImageRenderer *const renderer = [[UIGraphicsImageRenderer alloc] initWithSize:destSize format:rendererFormat];
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return [renderer imageWithActions:^(UIGraphicsImageRendererContext *_Nonnull context) {
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CGContextConcatCTM(context.CGContext, transform);
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[image drawAtPoint:CGPointZero];
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}];
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}
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BOOL RCTImageHasAlpha(CGImageRef image)
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@ -172,13 +172,15 @@ static CGPathRef RCTPathCreateOuterOutline(BOOL drawToEdge, CGRect rect, RCTCorn
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return RCTPathCreateWithRoundedRect(rect, RCTGetCornerInsets(cornerRadii, UIEdgeInsetsZero), NULL);
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}
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static CGContextRef
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RCTUIGraphicsBeginImageContext(CGSize size, CGColorRef backgroundColor, BOOL hasCornerRadii, BOOL drawToEdge)
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static UIGraphicsImageRenderer *
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RCTUIGraphicsImageRenderer(CGSize size, CGColorRef backgroundColor, BOOL hasCornerRadii, BOOL drawToEdge)
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{
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const CGFloat alpha = CGColorGetAlpha(backgroundColor);
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const BOOL opaque = (drawToEdge || !hasCornerRadii) && alpha == 1.0;
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UIGraphicsBeginImageContextWithOptions(size, opaque, 0.0);
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return UIGraphicsGetCurrentContext();
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UIGraphicsImageRendererFormat *const rendererFormat = [UIGraphicsImageRendererFormat defaultFormat];
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rendererFormat.opaque = opaque;
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UIGraphicsImageRenderer *const renderer = [[UIGraphicsImageRenderer alloc] initWithSize:size format:rendererFormat];
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return renderer;
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}
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static UIImage *RCTGetSolidBorderImage(
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@ -229,164 +231,166 @@ static UIImage *RCTGetSolidBorderImage(
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edgeInsets.top + 1 + edgeInsets.bottom
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} : viewSize;
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CGContextRef ctx = RCTUIGraphicsBeginImageContext(size, backgroundColor, hasCornerRadii, drawToEdge);
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const CGRect rect = {.size = size};
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CGPathRef path = RCTPathCreateOuterOutline(drawToEdge, rect, cornerRadii);
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UIGraphicsImageRenderer *const imageRenderer =
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RCTUIGraphicsImageRenderer(size, backgroundColor, hasCornerRadii, drawToEdge);
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UIImage *image = [imageRenderer imageWithActions:^(UIGraphicsImageRendererContext *_Nonnull rendererContext) {
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const CGContextRef context = rendererContext.CGContext;
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const CGRect rect = {.size = size};
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CGPathRef path = RCTPathCreateOuterOutline(drawToEdge, rect, cornerRadii);
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if (backgroundColor) {
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CGContextSetFillColorWithColor(ctx, backgroundColor);
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CGContextAddPath(ctx, path);
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CGContextFillPath(ctx);
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}
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if (backgroundColor) {
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CGContextSetFillColorWithColor(context, backgroundColor);
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CGContextAddPath(context, path);
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CGContextFillPath(context);
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}
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CGContextAddPath(ctx, path);
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CGPathRelease(path);
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CGContextAddPath(context, path);
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CGPathRelease(path);
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CGPathRef insetPath = RCTPathCreateWithRoundedRect(UIEdgeInsetsInsetRect(rect, borderInsets), cornerInsets, NULL);
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CGPathRef insetPath = RCTPathCreateWithRoundedRect(UIEdgeInsetsInsetRect(rect, borderInsets), cornerInsets, NULL);
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CGContextAddPath(ctx, insetPath);
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CGContextEOClip(ctx);
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CGContextAddPath(context, insetPath);
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CGContextEOClip(context);
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BOOL hasEqualColors = RCTBorderColorsAreEqual(borderColors);
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if ((drawToEdge || !hasCornerRadii) && hasEqualColors) {
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CGContextSetFillColorWithColor(ctx, borderColors.left);
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CGContextAddRect(ctx, rect);
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CGContextAddPath(ctx, insetPath);
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CGContextEOFillPath(ctx);
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BOOL hasEqualColors = RCTBorderColorsAreEqual(borderColors);
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if ((drawToEdge || !hasCornerRadii) && hasEqualColors) {
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CGContextSetFillColorWithColor(context, borderColors.left);
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CGContextAddRect(context, rect);
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CGContextAddPath(context, insetPath);
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CGContextEOFillPath(context);
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} else {
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CGPoint topLeft = (CGPoint){borderInsets.left, borderInsets.top};
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if (cornerInsets.topLeft.width > 0 && cornerInsets.topLeft.height > 0) {
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CGPoint points[2];
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RCTEllipseGetIntersectionsWithLine(
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(CGRect){topLeft, {2 * cornerInsets.topLeft.width, 2 * cornerInsets.topLeft.height}},
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CGPointZero,
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topLeft,
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points);
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if (!isnan(points[1].x) && !isnan(points[1].y)) {
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topLeft = points[1];
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} else {
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CGPoint topLeft = (CGPoint){borderInsets.left, borderInsets.top};
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if (cornerInsets.topLeft.width > 0 && cornerInsets.topLeft.height > 0) {
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CGPoint points[2];
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RCTEllipseGetIntersectionsWithLine(
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(CGRect){topLeft, {2 * cornerInsets.topLeft.width, 2 * cornerInsets.topLeft.height}},
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CGPointZero,
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topLeft,
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points);
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if (!isnan(points[1].x) && !isnan(points[1].y)) {
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topLeft = points[1];
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}
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}
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}
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CGPoint bottomLeft = (CGPoint){borderInsets.left, size.height - borderInsets.bottom};
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if (cornerInsets.bottomLeft.width > 0 && cornerInsets.bottomLeft.height > 0) {
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CGPoint points[2];
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RCTEllipseGetIntersectionsWithLine(
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(CGRect){
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{bottomLeft.x, bottomLeft.y - 2 * cornerInsets.bottomLeft.height},
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{2 * cornerInsets.bottomLeft.width, 2 * cornerInsets.bottomLeft.height}},
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(CGPoint){0, size.height},
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bottomLeft,
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points);
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if (!isnan(points[1].x) && !isnan(points[1].y)) {
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bottomLeft = points[1];
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CGPoint bottomLeft = (CGPoint){borderInsets.left, size.height - borderInsets.bottom};
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if (cornerInsets.bottomLeft.width > 0 && cornerInsets.bottomLeft.height > 0) {
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CGPoint points[2];
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RCTEllipseGetIntersectionsWithLine(
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(CGRect){
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{bottomLeft.x, bottomLeft.y - 2 * cornerInsets.bottomLeft.height},
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{2 * cornerInsets.bottomLeft.width, 2 * cornerInsets.bottomLeft.height}},
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(CGPoint){0, size.height},
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bottomLeft,
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points);
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if (!isnan(points[1].x) && !isnan(points[1].y)) {
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bottomLeft = points[1];
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}
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}
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}
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CGPoint topRight = (CGPoint){size.width - borderInsets.right, borderInsets.top};
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if (cornerInsets.topRight.width > 0 && cornerInsets.topRight.height > 0) {
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CGPoint points[2];
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RCTEllipseGetIntersectionsWithLine(
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(CGRect){
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{topRight.x - 2 * cornerInsets.topRight.width, topRight.y},
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{2 * cornerInsets.topRight.width, 2 * cornerInsets.topRight.height}},
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(CGPoint){size.width, 0},
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topRight,
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points);
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if (!isnan(points[0].x) && !isnan(points[0].y)) {
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topRight = points[0];
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CGPoint topRight = (CGPoint){size.width - borderInsets.right, borderInsets.top};
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if (cornerInsets.topRight.width > 0 && cornerInsets.topRight.height > 0) {
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CGPoint points[2];
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RCTEllipseGetIntersectionsWithLine(
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(CGRect){
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{topRight.x - 2 * cornerInsets.topRight.width, topRight.y},
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{2 * cornerInsets.topRight.width, 2 * cornerInsets.topRight.height}},
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(CGPoint){size.width, 0},
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topRight,
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points);
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if (!isnan(points[0].x) && !isnan(points[0].y)) {
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topRight = points[0];
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}
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}
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}
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CGPoint bottomRight = (CGPoint){size.width - borderInsets.right, size.height - borderInsets.bottom};
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if (cornerInsets.bottomRight.width > 0 && cornerInsets.bottomRight.height > 0) {
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CGPoint points[2];
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RCTEllipseGetIntersectionsWithLine(
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(CGRect){
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{bottomRight.x - 2 * cornerInsets.bottomRight.width, bottomRight.y - 2 * cornerInsets.bottomRight.height},
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{2 * cornerInsets.bottomRight.width, 2 * cornerInsets.bottomRight.height}},
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(CGPoint){size.width, size.height},
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bottomRight,
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points);
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if (!isnan(points[0].x) && !isnan(points[0].y)) {
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bottomRight = points[0];
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CGPoint bottomRight = (CGPoint){size.width - borderInsets.right, size.height - borderInsets.bottom};
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if (cornerInsets.bottomRight.width > 0 && cornerInsets.bottomRight.height > 0) {
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CGPoint points[2];
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RCTEllipseGetIntersectionsWithLine(
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(CGRect){
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{bottomRight.x - 2 * cornerInsets.bottomRight.width,
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bottomRight.y - 2 * cornerInsets.bottomRight.height},
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{2 * cornerInsets.bottomRight.width, 2 * cornerInsets.bottomRight.height}},
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(CGPoint){size.width, size.height},
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bottomRight,
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points);
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if (!isnan(points[0].x) && !isnan(points[0].y)) {
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bottomRight = points[0];
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}
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}
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}
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CGColorRef currentColor = NULL;
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CGColorRef currentColor = NULL;
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// RIGHT
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if (borderInsets.right > 0) {
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const CGPoint points[] = {
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(CGPoint){size.width, 0},
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topRight,
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bottomRight,
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(CGPoint){size.width, size.height},
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};
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// RIGHT
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if (borderInsets.right > 0) {
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const CGPoint points[] = {
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(CGPoint){size.width, 0},
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topRight,
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bottomRight,
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(CGPoint){size.width, size.height},
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};
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currentColor = borderColors.right;
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CGContextAddLines(ctx, points, sizeof(points) / sizeof(*points));
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}
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// BOTTOM
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if (borderInsets.bottom > 0) {
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const CGPoint points[] = {
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(CGPoint){0, size.height},
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bottomLeft,
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bottomRight,
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(CGPoint){size.width, size.height},
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};
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if (!CGColorEqualToColor(currentColor, borderColors.bottom)) {
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CGContextSetFillColorWithColor(ctx, currentColor);
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CGContextFillPath(ctx);
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currentColor = borderColors.bottom;
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currentColor = borderColors.right;
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CGContextAddLines(context, points, sizeof(points) / sizeof(*points));
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}
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CGContextAddLines(ctx, points, sizeof(points) / sizeof(*points));
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}
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// LEFT
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if (borderInsets.left > 0) {
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const CGPoint points[] = {
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CGPointZero,
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topLeft,
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bottomLeft,
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(CGPoint){0, size.height},
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};
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// BOTTOM
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if (borderInsets.bottom > 0) {
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const CGPoint points[] = {
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(CGPoint){0, size.height},
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bottomLeft,
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bottomRight,
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(CGPoint){size.width, size.height},
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};
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if (!CGColorEqualToColor(currentColor, borderColors.left)) {
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CGContextSetFillColorWithColor(ctx, currentColor);
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CGContextFillPath(ctx);
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currentColor = borderColors.left;
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if (!CGColorEqualToColor(currentColor, borderColors.bottom)) {
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CGContextSetFillColorWithColor(context, currentColor);
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CGContextFillPath(context);
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currentColor = borderColors.bottom;
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}
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CGContextAddLines(context, points, sizeof(points) / sizeof(*points));
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}
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CGContextAddLines(ctx, points, sizeof(points) / sizeof(*points));
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}
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// TOP
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if (borderInsets.top > 0) {
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const CGPoint points[] = {
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CGPointZero,
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topLeft,
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topRight,
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(CGPoint){size.width, 0},
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};
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// LEFT
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if (borderInsets.left > 0) {
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const CGPoint points[] = {
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CGPointZero,
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topLeft,
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bottomLeft,
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(CGPoint){0, size.height},
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};
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if (!CGColorEqualToColor(currentColor, borderColors.top)) {
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CGContextSetFillColorWithColor(ctx, currentColor);
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CGContextFillPath(ctx);
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currentColor = borderColors.top;
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if (!CGColorEqualToColor(currentColor, borderColors.left)) {
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CGContextSetFillColorWithColor(context, currentColor);
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CGContextFillPath(context);
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currentColor = borderColors.left;
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}
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CGContextAddLines(context, points, sizeof(points) / sizeof(*points));
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}
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CGContextAddLines(ctx, points, sizeof(points) / sizeof(*points));
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// TOP
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if (borderInsets.top > 0) {
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const CGPoint points[] = {
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CGPointZero,
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topLeft,
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topRight,
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(CGPoint){size.width, 0},
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};
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if (!CGColorEqualToColor(currentColor, borderColors.top)) {
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CGContextSetFillColorWithColor(context, currentColor);
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CGContextFillPath(context);
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currentColor = borderColors.top;
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}
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CGContextAddLines(context, points, sizeof(points) / sizeof(*points));
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}
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CGContextSetFillColorWithColor(context, currentColor);
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CGContextFillPath(context);
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}
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CGContextSetFillColorWithColor(ctx, currentColor);
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CGContextFillPath(ctx);
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}
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CGPathRelease(insetPath);
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UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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CGPathRelease(insetPath);
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}];
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if (makeStretchable) {
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image = [image resizableImageWithCapInsets:edgeInsets];
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@ -477,42 +481,41 @@ static UIImage *RCTGetDashedOrDottedBorderImage(
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}
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const BOOL hasCornerRadii = RCTCornerRadiiAreAboveThreshold(cornerRadii);
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CGContextRef ctx = RCTUIGraphicsBeginImageContext(viewSize, backgroundColor, hasCornerRadii, drawToEdge);
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const CGRect rect = {.size = viewSize};
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UIGraphicsImageRenderer *const imageRenderer =
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RCTUIGraphicsImageRenderer(viewSize, backgroundColor, hasCornerRadii, drawToEdge);
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return [imageRenderer imageWithActions:^(UIGraphicsImageRendererContext *_Nonnull rendererContext) {
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const CGContextRef context = rendererContext.CGContext;
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const CGRect rect = {.size = viewSize};
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if (backgroundColor) {
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CGPathRef outerPath = RCTPathCreateOuterOutline(drawToEdge, rect, cornerRadii);
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CGContextAddPath(ctx, outerPath);
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CGPathRelease(outerPath);
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if (backgroundColor) {
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CGPathRef outerPath = RCTPathCreateOuterOutline(drawToEdge, rect, cornerRadii);
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CGContextAddPath(context, outerPath);
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CGPathRelease(outerPath);
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CGContextSetFillColorWithColor(ctx, backgroundColor);
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CGContextFillPath(ctx);
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}
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CGContextSetFillColorWithColor(context, backgroundColor);
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CGContextFillPath(context);
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}
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// Stroking means that the width is divided in half and grows in both directions
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// perpendicular to the path, that's why we inset by half the width, so that it
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// reaches the edge of the rect.
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CGRect pathRect = CGRectInset(rect, lineWidth / 2.0, lineWidth / 2.0);
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CGPathRef path = RCTPathCreateWithRoundedRect(pathRect, RCTGetCornerInsets(cornerRadii, UIEdgeInsetsZero), NULL);
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// Stroking means that the width is divided in half and grows in both directions
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// perpendicular to the path, that's why we inset by half the width, so that it
|
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// reaches the edge of the rect.
|
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CGRect pathRect = CGRectInset(rect, lineWidth / 2.0, lineWidth / 2.0);
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CGPathRef path = RCTPathCreateWithRoundedRect(pathRect, RCTGetCornerInsets(cornerRadii, UIEdgeInsetsZero), NULL);
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CGFloat dashLengths[2];
|
||||
dashLengths[0] = dashLengths[1] = (borderStyle == RCTBorderStyleDashed ? 3 : 1) * lineWidth;
|
||||
CGFloat dashLengths[2];
|
||||
dashLengths[0] = dashLengths[1] = (borderStyle == RCTBorderStyleDashed ? 3 : 1) * lineWidth;
|
||||
|
||||
CGContextSetLineWidth(ctx, lineWidth);
|
||||
CGContextSetLineDash(ctx, 0, dashLengths, sizeof(dashLengths) / sizeof(*dashLengths));
|
||||
CGContextSetLineWidth(context, lineWidth);
|
||||
CGContextSetLineDash(context, 0, dashLengths, sizeof(dashLengths) / sizeof(*dashLengths));
|
||||
|
||||
CGContextSetStrokeColorWithColor(ctx, [UIColor yellowColor].CGColor);
|
||||
CGContextSetStrokeColorWithColor(context, [UIColor yellowColor].CGColor);
|
||||
|
||||
CGContextAddPath(ctx, path);
|
||||
CGContextSetStrokeColorWithColor(ctx, borderColors.top);
|
||||
CGContextStrokePath(ctx);
|
||||
CGContextAddPath(context, path);
|
||||
CGContextSetStrokeColorWithColor(context, borderColors.top);
|
||||
CGContextStrokePath(context);
|
||||
|
||||
CGPathRelease(path);
|
||||
|
||||
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
|
||||
UIGraphicsEndImageContext();
|
||||
|
||||
return image;
|
||||
CGPathRelease(path);
|
||||
}];
|
||||
}
|
||||
|
||||
UIImage *RCTGetBorderImage(
|
||||
|
|
|
|||
|
|
@ -19,65 +19,69 @@ RCT_EXPORT_METHOD(takeScreenshot
|
|||
: (RCTPromiseResolveBlock)resolve reject
|
||||
: (RCTPromiseRejectBlock)reject)
|
||||
{
|
||||
[self.bridge.uiManager
|
||||
addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
|
||||
// Get view
|
||||
UIView *view;
|
||||
if (target == nil || [target isEqual:@"window"]) {
|
||||
view = RCTKeyWindow();
|
||||
} else if ([target isKindOfClass:[NSNumber class]]) {
|
||||
view = viewRegistry[target];
|
||||
if (!view) {
|
||||
RCTLogError(@"No view found with reactTag: %@", target);
|
||||
return;
|
||||
}
|
||||
}
|
||||
[self.bridge.uiManager addUIBlock:^(
|
||||
__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
|
||||
// Get view
|
||||
UIView *view;
|
||||
if (target == nil || [target isEqual:@"window"]) {
|
||||
view = RCTKeyWindow();
|
||||
} else if ([target isKindOfClass:[NSNumber class]]) {
|
||||
view = viewRegistry[target];
|
||||
if (!view) {
|
||||
RCTLogError(@"No view found with reactTag: %@", target);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
// Get options
|
||||
CGSize size = [RCTConvert CGSize:options];
|
||||
NSString *format = [RCTConvert NSString:options[@"format"] ?: @"png"];
|
||||
// Get options
|
||||
CGSize size = [RCTConvert CGSize:options];
|
||||
NSString *format = [RCTConvert NSString:options[@"format"] ?: @"png"];
|
||||
|
||||
// Capture image
|
||||
if (size.width < 0.1 || size.height < 0.1) {
|
||||
size = view.bounds.size;
|
||||
}
|
||||
UIGraphicsBeginImageContextWithOptions(size, NO, 0);
|
||||
BOOL success = [view drawViewHierarchyInRect:(CGRect){CGPointZero, size} afterScreenUpdates:YES];
|
||||
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
|
||||
UIGraphicsEndImageContext();
|
||||
// Capture image
|
||||
if (size.width < 0.1 || size.height < 0.1) {
|
||||
size = view.bounds.size;
|
||||
}
|
||||
|
||||
if (!success || !image) {
|
||||
reject(RCTErrorUnspecified, @"Failed to capture view snapshot.", nil);
|
||||
UIGraphicsImageRendererFormat *const rendererFormat = [UIGraphicsImageRendererFormat defaultFormat];
|
||||
UIGraphicsImageRenderer *const renderer = [[UIGraphicsImageRenderer alloc] initWithSize:size format:rendererFormat];
|
||||
|
||||
__block BOOL success = NO;
|
||||
UIImage *image = [renderer imageWithActions:^(UIGraphicsImageRendererContext *_Nonnull context) {
|
||||
success = [view drawViewHierarchyInRect:(CGRect){CGPointZero, size} afterScreenUpdates:YES];
|
||||
}];
|
||||
|
||||
if (!success || !image) {
|
||||
reject(RCTErrorUnspecified, @"Failed to capture view snapshot.", nil);
|
||||
return;
|
||||
}
|
||||
|
||||
// Convert image to data (on a background thread)
|
||||
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
|
||||
NSData *data;
|
||||
if ([format isEqualToString:@"png"]) {
|
||||
data = UIImagePNGRepresentation(image);
|
||||
} else if ([format isEqualToString:@"jpeg"]) {
|
||||
CGFloat quality = [RCTConvert CGFloat:options[@"quality"] ?: @1];
|
||||
data = UIImageJPEGRepresentation(image, quality);
|
||||
} else {
|
||||
RCTLogError(@"Unsupported image format: %@", format);
|
||||
return;
|
||||
}
|
||||
|
||||
// Save to a temp file
|
||||
NSError *error = nil;
|
||||
NSString *tempFilePath = RCTTempFilePath(format, &error);
|
||||
if (tempFilePath) {
|
||||
if ([data writeToFile:tempFilePath options:(NSDataWritingOptions)0 error:&error]) {
|
||||
resolve(tempFilePath);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
// Convert image to data (on a background thread)
|
||||
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
|
||||
NSData *data;
|
||||
if ([format isEqualToString:@"png"]) {
|
||||
data = UIImagePNGRepresentation(image);
|
||||
} else if ([format isEqualToString:@"jpeg"]) {
|
||||
CGFloat quality = [RCTConvert CGFloat:options[@"quality"] ?: @1];
|
||||
data = UIImageJPEGRepresentation(image, quality);
|
||||
} else {
|
||||
RCTLogError(@"Unsupported image format: %@", format);
|
||||
return;
|
||||
}
|
||||
|
||||
// Save to a temp file
|
||||
NSError *error = nil;
|
||||
NSString *tempFilePath = RCTTempFilePath(format, &error);
|
||||
if (tempFilePath) {
|
||||
if ([data writeToFile:tempFilePath options:(NSDataWritingOptions)0 error:&error]) {
|
||||
resolve(tempFilePath);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
// If we reached here, something went wrong
|
||||
reject(RCTErrorUnspecified, error.localizedDescription, error);
|
||||
});
|
||||
}];
|
||||
// If we reached here, something went wrong
|
||||
reject(RCTErrorUnspecified, error.localizedDescription, error);
|
||||
});
|
||||
}];
|
||||
}
|
||||
|
||||
@end
|
||||
|
|
|
|||
|
|
@ -325,23 +325,14 @@ typedef NS_ENUM(NSInteger, FBTestSnapshotFileNameType) {
|
|||
NSAssert1(CGRectGetWidth(bounds), @"Zero width for view %@", view);
|
||||
NSAssert1(CGRectGetHeight(bounds), @"Zero height for view %@", view);
|
||||
|
||||
UIGraphicsBeginImageContextWithOptions(bounds.size, NO, 0);
|
||||
CGContextRef context = UIGraphicsGetCurrentContext();
|
||||
NSAssert1(context, @"Could not generate context for view %@", view);
|
||||
UIGraphicsImageRendererFormat *const rendererFormat = [UIGraphicsImageRendererFormat defaultFormat];
|
||||
UIGraphicsImageRenderer *const renderer = [[UIGraphicsImageRenderer alloc] initWithSize:bounds.size
|
||||
format:rendererFormat];
|
||||
|
||||
UIGraphicsPushContext(context);
|
||||
CGContextSaveGState(context);
|
||||
{
|
||||
return [renderer imageWithActions:^(UIGraphicsImageRendererContext *_Nonnull context) {
|
||||
BOOL success = [view drawViewHierarchyInRect:bounds afterScreenUpdates:YES];
|
||||
NSAssert1(success, @"Could not create snapshot for view %@", view);
|
||||
}
|
||||
CGContextRestoreGState(context);
|
||||
UIGraphicsPopContext();
|
||||
|
||||
UIImage *snapshot = UIGraphicsGetImageFromCurrentImageContext();
|
||||
UIGraphicsEndImageContext();
|
||||
|
||||
return snapshot;
|
||||
}];
|
||||
}
|
||||
|
||||
@end
|
||||
|
|
|
|||
|
|
@ -15,19 +15,22 @@
|
|||
return nil;
|
||||
}
|
||||
CGSize imageSize = CGSizeMake(MAX(self.size.width, image.size.width), MAX(self.size.height, image.size.height));
|
||||
UIGraphicsBeginImageContextWithOptions(imageSize, YES, 0.0);
|
||||
CGContextRef context = UIGraphicsGetCurrentContext();
|
||||
[self drawInRect:CGRectMake(0, 0, self.size.width, self.size.height)];
|
||||
CGContextSetAlpha(context, 0.5f);
|
||||
CGContextBeginTransparencyLayer(context, NULL);
|
||||
[image drawInRect:CGRectMake(0, 0, image.size.width, image.size.height)];
|
||||
CGContextSetBlendMode(context, kCGBlendModeDifference);
|
||||
CGContextSetFillColorWithColor(context, [UIColor whiteColor].CGColor);
|
||||
CGContextFillRect(context, CGRectMake(0, 0, self.size.width, self.size.height));
|
||||
CGContextEndTransparencyLayer(context);
|
||||
UIImage *returnImage = UIGraphicsGetImageFromCurrentImageContext();
|
||||
UIGraphicsEndImageContext();
|
||||
return returnImage;
|
||||
|
||||
UIGraphicsImageRendererFormat *const rendererFormat = [UIGraphicsImageRendererFormat defaultFormat];
|
||||
rendererFormat.opaque = YES;
|
||||
UIGraphicsImageRenderer *const renderer = [[UIGraphicsImageRenderer alloc] initWithSize:imageSize
|
||||
format:rendererFormat];
|
||||
|
||||
return [renderer imageWithActions:^(UIGraphicsImageRendererContext *_Nonnull context) {
|
||||
[self drawInRect:CGRectMake(0, 0, self.size.width, self.size.height)];
|
||||
CGContextSetAlpha(context.CGContext, 0.5f);
|
||||
CGContextBeginTransparencyLayer(context.CGContext, NULL);
|
||||
[image drawInRect:CGRectMake(0, 0, image.size.width, image.size.height)];
|
||||
CGContextSetBlendMode(context.CGContext, kCGBlendModeDifference);
|
||||
CGContextSetFillColorWithColor(context.CGContext, [UIColor whiteColor].CGColor);
|
||||
CGContextFillRect(context.CGContext, CGRectMake(0, 0, self.size.width, self.size.height));
|
||||
CGContextEndTransparencyLayer(context.CGContext);
|
||||
}];
|
||||
}
|
||||
|
||||
@end
|
||||
|
|
|
|||
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