blob: d07884640bed063e90dd5b76419c6e9598c39efa [file] [log] [blame]
/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "src/gpu/mtl/GrMtlRenderTarget.h"
#include "src/gpu/mtl/GrMtlGpu.h"
#include "src/gpu/mtl/GrMtlUtil.h"
#if !__has_feature(objc_arc)
#error This file must be compiled with Arc. Use -fobjc-arc flag
#endif
// Called for wrapped non-texture render targets.
GrMtlRenderTarget::GrMtlRenderTarget(GrMtlGpu* gpu,
SkISize dimensions,
int sampleCnt,
id<MTLTexture> colorTexture,
id<MTLTexture> resolveTexture,
Wrapped)
: GrSurface(gpu, dimensions, GrProtected::kNo)
, GrRenderTarget(gpu, dimensions, sampleCnt, GrProtected::kNo)
, fColorTexture(colorTexture)
, fResolveTexture(resolveTexture) {
SkASSERT(sampleCnt > 1);
this->registerWithCacheWrapped(GrWrapCacheable::kNo);
}
GrMtlRenderTarget::GrMtlRenderTarget(GrMtlGpu* gpu,
SkISize dimensions,
id<MTLTexture> colorTexture,
Wrapped)
: GrSurface(gpu, dimensions, GrProtected::kNo)
, GrRenderTarget(gpu, dimensions, 1, GrProtected::kNo)
, fColorTexture(colorTexture)
, fResolveTexture(nil) {
this->registerWithCacheWrapped(GrWrapCacheable::kNo);
}
// Called by subclass constructors.
GrMtlRenderTarget::GrMtlRenderTarget(GrMtlGpu* gpu,
SkISize dimensions,
int sampleCnt,
id<MTLTexture> colorTexture,
id<MTLTexture> resolveTexture)
: GrSurface(gpu, dimensions, GrProtected::kNo)
, GrRenderTarget(gpu, dimensions, sampleCnt, GrProtected::kNo)
, fColorTexture(colorTexture)
, fResolveTexture(resolveTexture) {
SkASSERT(sampleCnt > 1);
}
GrMtlRenderTarget::GrMtlRenderTarget(GrMtlGpu* gpu, SkISize dimensions, id<MTLTexture> colorTexture)
: GrSurface(gpu, dimensions, GrProtected::kNo)
, GrRenderTarget(gpu, dimensions, 1, GrProtected::kNo)
, fColorTexture(colorTexture)
, fResolveTexture(nil) {}
sk_sp<GrMtlRenderTarget> GrMtlRenderTarget::MakeWrappedRenderTarget(GrMtlGpu* gpu,
SkISize dimensions,
int sampleCnt,
id<MTLTexture> texture) {
SkASSERT(nil != texture);
SkASSERT(1 == texture.mipmapLevelCount);
if (@available(macOS 10.11, iOS 9.0, *)) {
SkASSERT(MTLTextureUsageRenderTarget & texture.usage);
}
GrMtlRenderTarget* mtlRT;
if (sampleCnt > 1) {
if ([texture sampleCount] == 1) {
MTLPixelFormat format = texture.pixelFormat;
if (!gpu->mtlCaps().isFormatRenderable(format, sampleCnt)) {
return nullptr;
}
MTLTextureDescriptor* texDesc = [[MTLTextureDescriptor alloc] init];
texDesc.textureType = MTLTextureType2DMultisample;
texDesc.pixelFormat = format;
texDesc.width = dimensions.fWidth;
texDesc.height = dimensions.fHeight;
texDesc.depth = 1;
texDesc.mipmapLevelCount = 1;
texDesc.sampleCount = sampleCnt;
texDesc.arrayLength = 1;
if (@available(macOS 10.11, iOS 9.0, *)) {
texDesc.storageMode = MTLStorageModePrivate;
texDesc.usage = MTLTextureUsageShaderRead | MTLTextureUsageRenderTarget;
}
id<MTLTexture> colorTexture = [gpu->device() newTextureWithDescriptor:texDesc];
if (!colorTexture) {
return nullptr;
}
if (@available(macOS 10.11, iOS 9.0, *)) {
SkASSERT((MTLTextureUsageShaderRead | MTLTextureUsageRenderTarget) &
colorTexture.usage);
}
mtlRT = new GrMtlRenderTarget(
gpu, dimensions, sampleCnt, colorTexture, texture, kWrapped);
} else {
SkASSERT(sampleCnt == static_cast<int>([texture sampleCount]));
mtlRT = new GrMtlRenderTarget(gpu, dimensions, sampleCnt, texture, nil, kWrapped);
}
} else {
mtlRT = new GrMtlRenderTarget(gpu, dimensions, texture, kWrapped);
}
return sk_sp<GrMtlRenderTarget>(mtlRT);
}
GrMtlRenderTarget::~GrMtlRenderTarget() {
SkASSERT(nil == fColorTexture);
SkASSERT(nil == fResolveTexture);
}
GrBackendRenderTarget GrMtlRenderTarget::getBackendRenderTarget() const {
GrMtlTextureInfo info;
info.fTexture.reset(GrRetainPtrFromId(fColorTexture));
return GrBackendRenderTarget(this->width(), this->height(), info);
}
GrBackendFormat GrMtlRenderTarget::backendFormat() const {
return GrBackendFormat::MakeMtl(fColorTexture.pixelFormat);
}
GrMtlGpu* GrMtlRenderTarget::getMtlGpu() const {
SkASSERT(!this->wasDestroyed());
return static_cast<GrMtlGpu*>(this->getGpu());
}
void GrMtlRenderTarget::onAbandon() {
fColorTexture = nil;
fResolveTexture = nil;
INHERITED::onAbandon();
}
void GrMtlRenderTarget::onRelease() {
fColorTexture = nil;
fResolveTexture = nil;
INHERITED::onRelease();
}
bool GrMtlRenderTarget::completeStencilAttachment() {
return true;
}