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// Copyright 2018 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 DAWNNATIVE_RENDERPASSENCODER_H_
#define DAWNNATIVE_RENDERPASSENCODER_H_
#include "dawn_native/Error.h"
#include "dawn_native/RenderEncoderBase.h"
namespace dawn_native {
class RenderBundleBase;
class RenderPassEncoder final : public RenderEncoderBase {
public:
RenderPassEncoder(DeviceBase* device,
CommandEncoder* commandEncoder,
EncodingContext* encodingContext,
RenderPassResourceUsageTracker usageTracker,
Ref<AttachmentState> attachmentState,
QuerySetBase* occlusionQuerySet,
uint32_t renderTargetWidth,
uint32_t renderTargetHeight);
static RenderPassEncoder* MakeError(DeviceBase* device,
CommandEncoder* commandEncoder,
EncodingContext* encodingContext);
void APIEndPass();
void APISetStencilReference(uint32_t reference);
void APISetBlendConstant(const Color* color);
void APISetViewport(float x,
float y,
float width,
float height,
float minDepth,
float maxDepth);
void APISetScissorRect(uint32_t x, uint32_t y, uint32_t width, uint32_t height);
void APIExecuteBundles(uint32_t count, RenderBundleBase* const* renderBundles);
void APIBeginOcclusionQuery(uint32_t queryIndex);
void APIEndOcclusionQuery();
void APIWriteTimestamp(QuerySetBase* querySet, uint32_t queryIndex);
protected:
RenderPassEncoder(DeviceBase* device,
CommandEncoder* commandEncoder,
EncodingContext* encodingContext,
ErrorTag errorTag);
private:
void TrackQueryAvailability(QuerySetBase* querySet, uint32_t queryIndex);
// For render and compute passes, the encoding context is borrowed from the command encoder.
// Keep a reference to the encoder to make sure the context isn't freed.
Ref<CommandEncoder> mCommandEncoder;
uint32_t mRenderTargetWidth;
uint32_t mRenderTargetHeight;
// The resources for occlusion query
Ref<QuerySetBase> mOcclusionQuerySet;
uint32_t mCurrentOcclusionQueryIndex = 0;
bool mOcclusionQueryActive = false;
};
} // namespace dawn_native
#endif // DAWNNATIVE_RENDERPASSENCODER_H_