src/dawn/native/ApplyClearColorValueWithDrawHelper.h

// Copyright 2022 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_APPLYCLEARVALUEWITHDRAWHELPER_H_
#define SRC_DAWN_NATIVE_APPLYCLEARVALUEWITHDRAWHELPER_H_

#include <bitset>
#include <unordered_map>
#include "dawn/common/Constants.h"
#include "dawn/native/Error.h"

namespace dawn::native {
class BufferBase;
class RenderPassEncoder;
struct RenderPassDescriptor;

struct KeyOfApplyClearColorValueWithDrawPipelines {
    uint8_t colorAttachmentCount;
    std::array<wgpu::TextureFormat, kMaxColorAttachments> colorTargetFormats;
    std::bitset<kMaxColorAttachments> colorTargetsToApplyClearColorValue;
};

struct KeyOfApplyClearColorValueWithDrawPipelinesHashFunc {
    size_t operator()(KeyOfApplyClearColorValueWithDrawPipelines key) const;
};
struct KeyOfApplyClearColorValueWithDrawPipelinesEqualityFunc {
    bool operator()(KeyOfApplyClearColorValueWithDrawPipelines key1,
                    const KeyOfApplyClearColorValueWithDrawPipelines key2) const;
};
using ApplyClearColorValueWithDrawPipelinesCache =
    std::unordered_map<KeyOfApplyClearColorValueWithDrawPipelines,
                       Ref<RenderPipelineBase>,
                       KeyOfApplyClearColorValueWithDrawPipelinesHashFunc,
                       KeyOfApplyClearColorValueWithDrawPipelinesEqualityFunc>;

bool ShouldApplyClearBigIntegerColorValueWithDraw(const DeviceBase* device,
                                                  const RenderPassDescriptor* renderPassDescriptor);

MaybeError ApplyClearBigIntegerColorValueWithDraw(RenderPassEncoder* renderPassEncoder,
                                                  const RenderPassDescriptor* renderPassDescriptor);

}  // namespace dawn::native

#endif