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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrMtlTextureRenderTarget.h"
#include "GrMtlGpu.h"
#include "GrMtlUtil.h"
GrMtlTextureRenderTarget::GrMtlTextureRenderTarget(GrMtlGpu* gpu,
SkBudgeted budgeted,
const GrSurfaceDesc& desc,
id<MTLTexture> renderTexture,
GrMipMapsStatus mipMapsStatus)
: GrSurface(gpu, desc)
, GrMtlTexture(gpu, desc, renderTexture, mipMapsStatus)
, GrMtlRenderTarget(gpu, desc, renderTexture) {
this->registerWithCache(budgeted);
}
sk_sp<GrMtlTextureRenderTarget>
GrMtlTextureRenderTarget::Make(GrMtlGpu* gpu,
const GrSurfaceDesc& desc,
id<MTLTexture> renderTexture,
int mipLevels,
SkBudgeted budgeted,
bool isWrapped) {
SkASSERT(nil != renderTexture);
if (desc.fSampleCnt > 1) {
SkASSERT(false); // Currently don't support MSAA
return nullptr;
}
GrMipMapsStatus mipMapsStatus = mipLevels > 1 ? GrMipMapsStatus::kValid
: GrMipMapsStatus::kNotAllocated;
if (!isWrapped) {
return sk_sp<GrMtlTextureRenderTarget>(new GrMtlTextureRenderTarget(gpu,
budgeted,
desc,
renderTexture,
mipMapsStatus));
} else {
return nullptr; // Currently don't support wrapped TextureRenderTargets
}
}
sk_sp<GrMtlTextureRenderTarget>
GrMtlTextureRenderTarget::CreateNewTextureRenderTarget(GrMtlGpu* gpu,
SkBudgeted budgeted,
const GrSurfaceDesc& desc,
int mipLevels) {
MTLPixelFormat format;
if (!GrPixelConfigToMTLFormat(desc.fConfig, &format)) {
return nullptr;
}
MTLTextureDescriptor* descriptor = [[MTLTextureDescriptor alloc] init];
descriptor.textureType = MTLTextureType2D;
descriptor.pixelFormat = format;
descriptor.width = desc.fWidth;
descriptor.height = desc.fHeight;
descriptor.depth = 1;
descriptor.mipmapLevelCount = mipLevels;
descriptor.sampleCount = 1;
descriptor.arrayLength = 1;
// descriptor.resourceOptions This looks to be set by setting cpuCacheMode and storageModes
descriptor.cpuCacheMode = MTLCPUCacheModeWriteCombined;
// RenderTargets never need to be mapped so their storage mode is set to private
descriptor.storageMode = MTLStorageModePrivate;
descriptor.usage = MTLTextureUsageRenderTarget | MTLTextureUsageShaderRead;
id<MTLTexture> texture = [gpu->device() newTextureWithDescriptor:descriptor];
return Make(gpu, desc, texture, mipLevels, budgeted, false);
}
sk_sp<GrMtlTextureRenderTarget>
GrMtlTextureRenderTarget::MakeWrappedTextureRenderTarget(GrMtlGpu* gpu,
const GrSurfaceDesc& desc,
GrWrapOwnership wrapOwnership) {
return nullptr;
}
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