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Merge pull request #536 from qdsfdhvh/master
Version 1.8.1
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75 changes: 38 additions & 37 deletions
75
...loader/component/fetcher/CGImageRefExt.kt → ...m/seiko/imageloader/util/CGImageRefExt.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,87 +1,88 @@ | ||
| package com.seiko.imageloader.component.fetcher | ||
| package com.seiko.imageloader.util | ||
|
|
||
| import cnames.structs.CGColorSpace | ||
| import cnames.structs.CGImage | ||
| import kotlinx.cinterop.CPointed | ||
| import kotlinx.cinterop.CPointer | ||
| import kotlinx.cinterop.CValue | ||
| import kotlinx.cinterop.ExperimentalForeignApi | ||
| import kotlinx.cinterop.readBytes | ||
| import kotlinx.cinterop.addressOf | ||
| import kotlinx.cinterop.usePinned | ||
| import org.jetbrains.skia.ColorAlphaType | ||
| import org.jetbrains.skia.ColorType | ||
| import org.jetbrains.skia.Image | ||
| import org.jetbrains.skia.ImageInfo | ||
| import platform.CoreGraphics.CGBitmapContextCreate | ||
| import platform.CoreGraphics.CGColorSpaceCreateDeviceRGB | ||
| import platform.CoreGraphics.CGColorSpaceRef | ||
| import platform.CoreGraphics.CGColorSpaceRelease | ||
| import platform.CoreGraphics.CGContextClearRect | ||
| import platform.CoreGraphics.CGContextDrawImage | ||
| import platform.CoreGraphics.CGContextRef | ||
| import platform.CoreGraphics.CGContextRelease | ||
| import platform.CoreGraphics.CGImageAlphaInfo | ||
| import platform.CoreGraphics.CGImageGetHeight | ||
| import platform.CoreGraphics.CGImageGetWidth | ||
| import platform.CoreGraphics.CGImageRef | ||
| import platform.CoreGraphics.CGRect | ||
| import platform.CoreGraphics.CGRectMake | ||
| import platform.posix.free | ||
| import platform.posix.malloc | ||
| import platform.posix.size_t | ||
| import platform.posix.uint32_t | ||
|
|
||
| @OptIn(ExperimentalForeignApi::class) | ||
| internal fun CGImageRef.toSkiaImage(): Image { | ||
| fun CGImageRef.toSkiaImage(): Image { | ||
| val cgImage: CPointer<CGImage> = this | ||
| val width: size_t = CGImageGetWidth(cgImage) | ||
| val height: size_t = CGImageGetHeight(cgImage) | ||
| val space: CPointer<CGColorSpace>? = CGColorSpaceCreateDeviceRGB() | ||
| val space: CGColorSpaceRef? = CGColorSpaceCreateDeviceRGB() | ||
| val bitsPerComponent: ULong = 8u | ||
| val bitsPerPixel: ULong = bitsPerComponent * 4u | ||
| val bytesPerPixel: ULong = bitsPerPixel / bitsPerComponent | ||
| val bytesPerRow: ULong = width * bytesPerPixel | ||
| val bufferSize: ULong = width * height * bytesPerPixel | ||
| val bitmapInfo: uint32_t = CGImageAlphaInfo.kCGImageAlphaPremultipliedLast.value | ||
| val bitmapInfo: uint32_t = platform.CoreGraphics.CGImageAlphaInfo.kCGImageAlphaPremultipliedLast.value | ||
|
|
||
| check(bufferSize != 0UL) { "image can't be 0 bytes" } | ||
| check(width > 0UL) { "width should be more then 0 px ($width)" } | ||
| check(height > 0UL) { "height should be more then 0 px ($height)" } | ||
|
|
||
| val data: CPointer<out CPointed> = malloc(bufferSize) | ||
| ?: throw IllegalArgumentException("can't allocate memory for render bitmap of $cgImage") | ||
|
|
||
| val rect: CValue<CGRect> = CGRectMake( | ||
| x = 0.0, | ||
| y = 0.0, | ||
| width = width.toDouble(), | ||
| height = height.toDouble(), | ||
| ) | ||
|
|
||
| val ctx: CGContextRef = CGBitmapContextCreate( | ||
| data = data, | ||
| width = width, | ||
| height = height, | ||
| bitsPerComponent = bitsPerComponent, | ||
| bytesPerRow = bytesPerRow, | ||
| space = space, | ||
| bitmapInfo = bitmapInfo, | ||
| ) ?: throw IllegalArgumentException("can't create bitmap context for $cgImage") | ||
| val bytes = ByteArray(bufferSize.toInt()) | ||
|
|
||
| CGContextClearRect(c = ctx, rect = rect) | ||
| CGContextDrawImage(c = ctx, rect = rect, image = cgImage) | ||
| bytes.usePinned { pinnedArray -> | ||
| val data = pinnedArray.addressOf(0) | ||
|
|
||
| CGContextRelease(ctx) | ||
| val ctx: CGContextRef = CGBitmapContextCreate( | ||
| data = data, | ||
| width = width, | ||
| height = height, | ||
| bitsPerComponent = bitsPerComponent, | ||
| bytesPerRow = bytesPerRow, | ||
| space = space, | ||
| bitmapInfo = bitmapInfo, | ||
| ) ?: throw IllegalArgumentException("can't create bitmap context for $cgImage") | ||
|
|
||
| val bytes: ByteArray = data.readBytes(bufferSize.toInt()) | ||
| CGContextClearRect(c = ctx, rect = rect) | ||
| CGContextDrawImage(c = ctx, rect = rect, image = cgImage) | ||
|
|
||
| free(data) | ||
| CGContextRelease(ctx) | ||
|
|
||
| return Image.makeRaster( | ||
| imageInfo = ImageInfo( | ||
| width = width.toInt(), | ||
| height = height.toInt(), | ||
| colorType = ColorType.RGBA_8888, | ||
| alphaType = ColorAlphaType.PREMUL, | ||
| ), | ||
| bytes = bytes, | ||
| rowBytes = bytesPerRow.toInt(), | ||
| ) | ||
| if (space != null) { | ||
| CGColorSpaceRelease(space) | ||
| } | ||
|
|
||
| return Image.makeRaster( | ||
| imageInfo = ImageInfo( | ||
| width = width.toInt(), | ||
| height = height.toInt(), | ||
| colorType = ColorType.RGBA_8888, | ||
| alphaType = ColorAlphaType.PREMUL, | ||
| ), | ||
| bytes = bytes, | ||
| rowBytes = bytesPerRow.toInt(), | ||
| ) | ||
| } | ||
| } |
13 changes: 13 additions & 0 deletions
13
image-loader/src/iosMain/kotlin/com/seiko/imageloader/util/UIImageExt.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| package com.seiko.imageloader.util | ||
|
|
||
| import kotlinx.cinterop.ExperimentalForeignApi | ||
| import org.jetbrains.skia.Image | ||
| import platform.CoreGraphics.CGImageRef | ||
| import platform.UIKit.UIImage | ||
|
|
||
| @OptIn(ExperimentalForeignApi::class) | ||
| fun UIImage.toSkiaImage(): Image { | ||
| val cgImage: CGImageRef = this.CGImage() | ||
| ?: throw IllegalArgumentException("can't read CGImage of $this") | ||
| return cgImage.toSkiaImage() | ||
| } |
16 changes: 16 additions & 0 deletions
16
image-loader/src/macosMain/kotlin/com/seiko/imageloader/util/NSImageExt.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| package com.seiko.imageloader.util | ||
|
|
||
| import kotlinx.cinterop.ExperimentalForeignApi | ||
| import org.jetbrains.skia.Image | ||
| import platform.AppKit.NSImage | ||
| import platform.CoreGraphics.CGImageRef | ||
|
|
||
| @OptIn(ExperimentalForeignApi::class) | ||
| fun NSImage.toSkiaImage(): Image { | ||
| val cgImage: CGImageRef = this.CGImageForProposedRect( | ||
| proposedDestRect = null, | ||
| context = null, | ||
| hints = null, | ||
| ) ?: throw IllegalArgumentException("can't read CGImage of $this") | ||
| return cgImage.toSkiaImage() | ||
| } |
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