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// Copyright 2019 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_DAWN_NATIVE_ATTACHMENTSTATE_H_
#define SRC_DAWN_NATIVE_ATTACHMENTSTATE_H_
#include <array>
#include <bitset>
#include "dawn/common/Constants.h"
#include "dawn/common/ContentLessObjectCacheable.h"
#include "dawn/common/ityp_array.h"
#include "dawn/common/ityp_bitset.h"
#include "dawn/native/CachedObject.h"
#include "dawn/native/IntegerTypes.h"
#include "dawn/native/ObjectBase.h"
#include "dawn/native/dawn_platform.h"
namespace dawn::native {
class DeviceBase;
class AttachmentState final : public ObjectBase,
public CachedObject,
public ContentLessObjectCacheable<AttachmentState> {
public:
// Note: Descriptors must be validated before the AttachmentState is constructed.
explicit AttachmentState(DeviceBase* device, const RenderBundleEncoderDescriptor* descriptor);
explicit AttachmentState(DeviceBase* device, const RenderPipelineDescriptor* descriptor);
explicit AttachmentState(DeviceBase* device, const RenderPassDescriptor* descriptor);
// Constructor used to avoid re-parsing descriptors when we already parsed them for cache keys.
AttachmentState(const AttachmentState& blueprint);
ityp::bitset<ColorAttachmentIndex, kMaxColorAttachments> GetColorAttachmentsMask() const;
wgpu::TextureFormat GetColorAttachmentFormat(ColorAttachmentIndex index) const;
bool HasDepthStencilAttachment() const;
wgpu::TextureFormat GetDepthStencilFormat() const;
uint32_t GetSampleCount() const;
bool IsMSAARenderToSingleSampledEnabled() const;
struct EqualityFunc {
bool operator()(const AttachmentState* a, const AttachmentState* b) const;
};
size_t ComputeContentHash() override;
protected:
void DeleteThis() override;
private:
ityp::bitset<ColorAttachmentIndex, kMaxColorAttachments> mColorAttachmentsSet;
ityp::array<ColorAttachmentIndex, wgpu::TextureFormat, kMaxColorAttachments> mColorFormats;
// Default (texture format Undefined) indicates there is no depth stencil attachment.
wgpu::TextureFormat mDepthStencilFormat = wgpu::TextureFormat::Undefined;
uint32_t mSampleCount = 0;
bool mIsMSAARenderToSingleSampledEnabled = false;
};
} // namespace dawn::native
#endif // SRC_DAWN_NATIVE_ATTACHMENTSTATE_H_