SkMetalViewBridge.h File Reference

#include "tools/skottie_ios_app/GrContextHolder.h"
#import <MetalKit/MetalKit.h>
#include <memory>

Go to the source code of this file.

Functions
sk_sp< SkSurface >	SkMtkViewToSurface (MTKView *, GrRecordingContext *)
GrContextHolder	SkMetalDeviceToGrContext (id< MTLDevice >, id< MTLCommandQueue >)
void	SkMtkViewConfigForSkia (MTKView *)

Function Documentation

SkMetalDeviceToGrContext()

GrContextHolder SkMetalDeviceToGrContext	(	id< MTLDevice >	device,
		id< MTLCommandQueue >	queue
	)

Definition at line 42 of file SkMetalViewBridge.mm.

                                                                                          {
    GrMtlBackendContext backendContext = {};
    backendContext.fDevice.reset((__bridge void*)device);
    backendContext.fQueue.reset((__bridge void*)queue);
    GrContextOptions grContextOptions;  // set different options here.
    return GrContextHolder(GrDirectContexts::MakeMetal(backendContext, grContextOptions).release());
}

SkMtkViewConfigForSkia()

void SkMtkViewConfigForSkia

(

MTKView *

mtkView

)

Definition at line 50 of file SkMetalViewBridge.mm.

                                              {
    [mtkView setDepthStencilPixelFormat:MTLPixelFormatDepth32Float_Stencil8];
    [mtkView setColorPixelFormat:MTLPixelFormatBGRA8Unorm];
    [mtkView setSampleCount:1];
}

SkMtkViewToSurface()

sk_sp< SkSurface > SkMtkViewToSurface	(	MTKView *	mtkView,
		GrRecordingContext *	rContext
	)

Definition at line 20 of file SkMetalViewBridge.mm.

                                                                                    {
    if (!rContext ||
        MTLPixelFormatDepth32Float_Stencil8 != [mtkView depthStencilPixelFormat] ||
        MTLPixelFormatBGRA8Unorm != [mtkView colorPixelFormat]) {
        return nullptr;
    }
 
    const SkColorType colorType = kBGRA_8888_SkColorType;  // MTLPixelFormatBGRA8Unorm
    sk_sp<SkColorSpace> colorSpace = nullptr;  // MTLPixelFormatBGRA8Unorm
    const GrSurfaceOrigin origin = kTopLeft_GrSurfaceOrigin;
    const SkSurfaceProps surfaceProps;
    int sampleCount = (int)[mtkView sampleCount];
 
    return SkSurfaces::WrapMTKView(rContext,
                                   (__bridge GrMTLHandle)mtkView,
                                   origin,
                                   sampleCount,
                                   colorType,
                                   colorSpace,
                                   &surfaceProps);
}