FlutterDarwinExternalTextureMetal.h

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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#ifndef FLUTTER_SHELL_PLATFORM_DARWIN_GRAPHICS_FLUTTERDARWINEXTERNALTEXTUREMETAL_H_
#define FLUTTER_SHELL_PLATFORM_DARWIN_GRAPHICS_FLUTTERDARWINEXTERNALTEXTUREMETAL_H_
 
#import <Foundation/Foundation.h>
#import <Metal/Metal.h>
 
#include "flutter/common/graphics/texture.h"
#import "flutter/shell/platform/darwin/common/framework/Headers/FlutterTexture.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkImage.h"
 
@interface FlutterDarwinExternalTextureSkImageWrapper : NSObject
 
+ (sk_sp<SkImage>)wrapYUVATexture:(nonnull id<MTLTexture>)yTex
                            UVTex:(nonnull id<MTLTexture>)uvTex
                    YUVColorSpace:(SkYUVColorSpace)colorSpace
                        grContext:(nonnull GrDirectContext*)grContext
                            width:(size_t)width
                           height:(size_t)height;
 
+ (sk_sp<SkImage>)wrapRGBATexture:(nonnull id<MTLTexture>)rgbaTex
                        grContext:(nonnull GrDirectContext*)grContext
                            width:(size_t)width
                           height:(size_t)height;
 
@end
 
@interface FlutterDarwinExternalTextureMetal : NSObject
 
- (nullable instancetype)initWithTextureCache:(nonnull CVMetalTextureCacheRef)textureCache
                                    textureID:(int64_t)textureID
                                      texture:(nonnull NSObject<FlutterTexture>*)texture
                               enableImpeller:(BOOL)enableImpeller;
 
- (void)paintContext:(flutter::Texture::PaintContext&)context
              bounds:(const SkRect&)bounds
              freeze:(BOOL)freeze
            sampling:(const flutter::DlImageSampling)sampling;
 
- (void)onGrContextCreated;
 
- (void)onGrContextDestroyed;
 
- (void)markNewFrameAvailable;
 
- (void)onTextureUnregistered;
 
@property(nonatomic, readonly) int64_t textureID;
 
@end
 
#endif  // FLUTTER_SHELL_PLATFORM_DARWIN_GRAPHICS_FLUTTERDARWINEXTERNALTEXTUREMETAL_H_