blob: 03bddf5f1b4527620b5da7f5cc1ffca356ed232b [file] [log] [blame]
/*
* Copyright 2019 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkCanvas.h"
#include "include/core/SkSurface.h"
#include "include/gpu/GrBackendSurface.h"
#include "include/gpu/GrContext.h"
#include "include/gpu/mtl/GrMtlTypes.h"
#include "src/core/SkMathPriv.h"
#include "src/gpu/GrCaps.h"
#include "src/gpu/GrContextPriv.h"
#include "src/image/SkImage_Base.h"
#include "tools/sk_app/MetalWindowContext.h"
using sk_app::DisplayParams;
using sk_app::MetalWindowContext;
namespace sk_app {
MetalWindowContext::MetalWindowContext(const DisplayParams& params)
: WindowContext(params)
, fValid(false) {
fDisplayParams.fMSAASampleCount = GrNextPow2(fDisplayParams.fMSAASampleCount);
}
void MetalWindowContext::initializeContext() {
SkASSERT(!fContext);
fDevice = MTLCreateSystemDefaultDevice();
fQueue = [fDevice newCommandQueue];
if (fDisplayParams.fMSAASampleCount > 1) {
if (@available(macOS 10.11, iOS 9.0, *)) {
if (![fDevice supportsTextureSampleCount:fDisplayParams.fMSAASampleCount]) {
return;
}
} else {
return;
}
}
fSampleCount = fDisplayParams.fMSAASampleCount;
fStencilBits = 8;
fValid = this->onInitializeContext();
fContext = GrContext::MakeMetal((__bridge void*)fDevice, (__bridge void*)fQueue,
fDisplayParams.fGrContextOptions);
if (!fContext && fDisplayParams.fMSAASampleCount > 1) {
fDisplayParams.fMSAASampleCount /= 2;
this->initializeContext();
return;
}
}
void MetalWindowContext::destroyContext() {
if (fContext) {
// in case we have outstanding refs to this guy (lua?)
fContext->abandonContext();
fContext.reset();
}
this->onDestroyContext();
fMetalLayer = nil;
fValid = false;
[fQueue release];
[fDevice release];
}
sk_sp<SkSurface> MetalWindowContext::getBackbufferSurface() {
sk_sp<SkSurface> surface;
if (fContext) {
surface = SkSurface::MakeFromCAMetalLayer(fContext.get(), (__bridge GrMTLHandle)fMetalLayer,
kTopLeft_GrSurfaceOrigin, fSampleCount,
kBGRA_8888_SkColorType,
fDisplayParams.fColorSpace,
&fDisplayParams.fSurfaceProps,
&fDrawableHandle);
}
return surface;
}
void MetalWindowContext::swapBuffers() {
// ARC is off in sk_app, so we need to release the CF ref manually
id<CAMetalDrawable> currentDrawable = (id<CAMetalDrawable>)fDrawableHandle;
CFRelease(fDrawableHandle);
id<MTLCommandBuffer> commandBuffer = [fQueue commandBuffer];
commandBuffer.label = @"Present";
[commandBuffer presentDrawable:currentDrawable];
[commandBuffer commit];
}
void MetalWindowContext::setDisplayParams(const DisplayParams& params) {
this->destroyContext();
fDisplayParams = params;
this->initializeContext();
}
} //namespace sk_app