#include <GraphiteMetalWindowContext.h>

Inheritance diagram for skwindow::internal::GraphiteMetalWindowContext:

Public Member Functions
sk_sp< SkSurface >	getBackbufferSurface () override

bool	isValid () override

void	setDisplayParams (const DisplayParams &params) override

void	activate (bool isActive) override

Public Member Functions inherited from skwindow::WindowContext
	WindowContext (const DisplayParams &)

virtual	~WindowContext ()

virtual sk_sp< SkSurface >	getBackbufferSurface ()=0

void	swapBuffers ()

virtual bool	isValid ()=0

virtual void	resize (int w, int h)=0

virtual void	activate (bool isActive)

const DisplayParams &	getDisplayParams ()

virtual void	setDisplayParams (const DisplayParams &params)=0

GrDirectContext *	directContext () const

int	width () const

int	height () const

SkISize	dimensions () const

int	sampleCount () const

int	stencilBits () const

Protected Member Functions
	GraphiteMetalWindowContext (const DisplayParams &)

void	initializeContext ()

virtual bool	onInitializeContext ()=0

void	destroyContext ()

virtual void	onDestroyContext ()=0

void	onSwapBuffers () override

Protected Member Functions inherited from skwindow::WindowContext
virtual bool	isGpuContext ()

virtual void	onSwapBuffers ()=0

Protected Attributes
bool	fValid

sk_cfp< id< MTLDevice > >	fDevice

sk_cfp< id< MTLCommandQueue > >	fQueue

CAMetalLayer *	fMetalLayer

CFTypeRef	fDrawableHandle

Protected Attributes inherited from skwindow::WindowContext
sk_sp< GrDirectContext >	fContext

int	fWidth

int	fHeight

DisplayParams	fDisplayParams

int	fSampleCount = 1

int	fStencilBits = 0

Detailed Description

Definition at line 22 of file GraphiteMetalWindowContext.h.

Constructor & Destructor Documentation

◆ GraphiteMetalWindowContext()

skwindow::internal::GraphiteMetalWindowContext::GraphiteMetalWindowContext ( const DisplayParams & params )

protected

Definition at line 28 of file GraphiteMetalWindowContext.mm.

        : WindowContext(params)
        , fValid(false)
        , fDrawableHandle(nil) {
    fDisplayParams.fMSAASampleCount = GrNextPow2(fDisplayParams.fMSAASampleCount);
}

Member Function Documentation

◆ activate()

void skwindow::internal::GraphiteMetalWindowContext::activate ( bool isActive )

overridevirtual

Reimplemented from skwindow::WindowContext.

Definition at line 130 of file GraphiteMetalWindowContext.mm.

130{}

◆ destroyContext()

void skwindow::internal::GraphiteMetalWindowContext::destroyContext ( )

protected

Definition at line 74 of file GraphiteMetalWindowContext.mm.

                                                {
    if (fGraphiteContext) {
        fGraphiteRecorder.reset();
        fGraphiteContext.reset();
    }
 
    this->onDestroyContext();
 
    fMetalLayer = nil;
    fValid = false;
 
    fQueue.reset();
    fDevice.reset();
}

◆ getBackbufferSurface()

sk_sp< SkSurface > skwindow::internal::GraphiteMetalWindowContext::getBackbufferSurface ( )

overridevirtual

Implements skwindow::WindowContext.

Definition at line 89 of file GraphiteMetalWindowContext.mm.

                                                                  {
    sk_sp<SkSurface> surface;
    id<CAMetalDrawable> currentDrawable = [fMetalLayer nextDrawable];
    if (currentDrawable == nil) {
        return nullptr;
    }
 
    skgpu::graphite::BackendTexture backendTex(this->dimensions(),
                                               (CFTypeRef)currentDrawable.texture);
 
    surface = SkSurfaces::WrapBackendTexture(this->graphiteRecorder(),
                                             backendTex,
                                             kBGRA_8888_SkColorType,
                                             fDisplayParams.fColorSpace,
                                             &fDisplayParams.fSurfaceProps);
    fDrawableHandle = CFRetain((CFTypeRef) currentDrawable);
 
    return surface;
}

◆ initializeContext()

void skwindow::internal::GraphiteMetalWindowContext::initializeContext ( )

protected

Definition at line 35 of file GraphiteMetalWindowContext.mm.

                                                   {
    SkASSERT(!fContext);
    SkASSERT(!fGraphiteContext);
 
    fDevice.reset(MTLCreateSystemDefaultDevice());
    fQueue.reset([*fDevice newCommandQueue]);
 
    if (fDisplayParams.fMSAASampleCount > 1) {
        if (@available(macOS 10.11, iOS 9.0, tvOS 9.0, *)) {
            if (![*fDevice supportsTextureSampleCount:fDisplayParams.fMSAASampleCount]) {
                return;
            }
        } else {
            return;
        }
    }
    fSampleCount = fDisplayParams.fMSAASampleCount;
    fStencilBits = 8;
 
    fValid = this->onInitializeContext();
 
    skgpu::graphite::MtlBackendContext backendContext = {};
    backendContext.fDevice.retain((CFTypeRef)fDevice.get());
    backendContext.fQueue.retain((CFTypeRef)fQueue.get());
 
    fDisplayParams.fGraphiteContextOptions.fOptions.fDisableCachedGlyphUploads = true;
    // Needed to make synchronous readPixels work:
    fDisplayParams.fGraphiteContextOptions.fPriv.fStoreContextRefInRecorder = true;
    fGraphiteContext = skgpu::graphite::ContextFactory::MakeMetal(
            backendContext, fDisplayParams.fGraphiteContextOptions.fOptions);
    fGraphiteRecorder = fGraphiteContext->makeRecorder(ToolUtils::CreateTestingRecorderOptions());
    // TODO
//    if (!fGraphiteContext && fDisplayParams.fMSAASampleCount > 1) {
//        fDisplayParams.fMSAASampleCount /= 2;
//        this->initializeContext();
//        return;
//    }
}

◆ isValid()

bool skwindow::internal::GraphiteMetalWindowContext::isValid ( )

inlineoverridevirtual

Implements skwindow::WindowContext.

Definition at line 26 of file GraphiteMetalWindowContext.h.

26{ return fValid; }

◆ onDestroyContext()

virtual void skwindow::internal::GraphiteMetalWindowContext::onDestroyContext ( )

protectedpure virtual

◆ onInitializeContext()

virtual bool skwindow::internal::GraphiteMetalWindowContext::onInitializeContext ( )

protectedpure virtual

◆ onSwapBuffers()

void skwindow::internal::GraphiteMetalWindowContext::onSwapBuffers ( )

overrideprotectedvirtual

Implements skwindow::WindowContext.

Definition at line 109 of file GraphiteMetalWindowContext.mm.

                                               {
    this->snapRecordingAndSubmit();
 
    id<CAMetalDrawable> currentDrawable = (id<CAMetalDrawable>)fDrawableHandle;
 
    id<MTLCommandBuffer> commandBuffer([*fQueue commandBuffer]);
    commandBuffer.label = @"Present";
 
    [commandBuffer presentDrawable:currentDrawable];
    [commandBuffer commit];
    // ARC is off in sk_app, so we need to release the CF ref manually
    CFRelease(fDrawableHandle);
    fDrawableHandle = nil;
}

◆ setDisplayParams()

void skwindow::internal::GraphiteMetalWindowContext::setDisplayParams ( const DisplayParams & params )

overridevirtual

Implements skwindow::WindowContext.

Definition at line 124 of file GraphiteMetalWindowContext.mm.

                                                                             {
    this->destroyContext();
    fDisplayParams = params;
    this->initializeContext();
}

Member Data Documentation

◆ fDevice

sk_cfp<id<MTLDevice> > skwindow::internal::GraphiteMetalWindowContext::fDevice

protected

Definition at line 48 of file GraphiteMetalWindowContext.h.

◆ fDrawableHandle

CFTypeRef skwindow::internal::GraphiteMetalWindowContext::fDrawableHandle

protected

Definition at line 51 of file GraphiteMetalWindowContext.h.

◆ fMetalLayer

CAMetalLayer* skwindow::internal::GraphiteMetalWindowContext::fMetalLayer

protected

Definition at line 50 of file GraphiteMetalWindowContext.h.

◆ fQueue

sk_cfp<id<MTLCommandQueue> > skwindow::internal::GraphiteMetalWindowContext::fQueue

protected

Definition at line 49 of file GraphiteMetalWindowContext.h.

◆ fValid

bool skwindow::internal::GraphiteMetalWindowContext::fValid

protected

Definition at line 47 of file GraphiteMetalWindowContext.h.

The documentation for this class was generated from the following files:

third_party/skia/tools/window/GraphiteMetalWindowContext.h
third_party/skia/tools/window/GraphiteMetalWindowContext.mm

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ GraphiteMetalWindowContext()

Member Function Documentation

◆ activate()

◆ destroyContext()

◆ getBackbufferSurface()

◆ initializeContext()

◆ isValid()

◆ onDestroyContext()

◆ onInitializeContext()

◆ onSwapBuffers()

◆ setDisplayParams()

Member Data Documentation

◆ fDevice

◆ fDrawableHandle

◆ fMetalLayer

◆ fQueue

◆ fValid