1 // Copyright 2018 The Dawn Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef DAWNNATIVE_RENDERPASSENCODER_H_ 16 #define DAWNNATIVE_RENDERPASSENCODER_H_ 17 18 #include "dawn_native/Error.h" 19 #include "dawn_native/Forward.h" 20 #include "dawn_native/RenderEncoderBase.h" 21 22 namespace dawn_native { 23 24 class RenderBundleBase; 25 26 class RenderPassEncoder final : public RenderEncoderBase { 27 public: 28 RenderPassEncoder(DeviceBase* device, 29 const RenderPassDescriptor* descriptor, 30 CommandEncoder* commandEncoder, 31 EncodingContext* encodingContext, 32 RenderPassResourceUsageTracker usageTracker, 33 Ref<AttachmentState> attachmentState, 34 QuerySetBase* occlusionQuerySet, 35 uint32_t renderTargetWidth, 36 uint32_t renderTargetHeight, 37 bool depthReadOnly, 38 bool stencilReadOnly); 39 40 static RenderPassEncoder* MakeError(DeviceBase* device, 41 CommandEncoder* commandEncoder, 42 EncodingContext* encodingContext); 43 44 ObjectType GetType() const override; 45 46 void APIEndPass(); 47 48 void APISetStencilReference(uint32_t reference); 49 void APISetBlendConstant(const Color* color); 50 void APISetViewport(float x, 51 float y, 52 float width, 53 float height, 54 float minDepth, 55 float maxDepth); 56 void APISetScissorRect(uint32_t x, uint32_t y, uint32_t width, uint32_t height); 57 void APIExecuteBundles(uint32_t count, RenderBundleBase* const* renderBundles); 58 59 void APIBeginOcclusionQuery(uint32_t queryIndex); 60 void APIEndOcclusionQuery(); 61 62 void APIWriteTimestamp(QuerySetBase* querySet, uint32_t queryIndex); 63 64 protected: 65 RenderPassEncoder(DeviceBase* device, 66 CommandEncoder* commandEncoder, 67 EncodingContext* encodingContext, 68 ErrorTag errorTag); 69 70 private: 71 void DestroyImpl() override; 72 73 void TrackQueryAvailability(QuerySetBase* querySet, uint32_t queryIndex); 74 75 // For render and compute passes, the encoding context is borrowed from the command encoder. 76 // Keep a reference to the encoder to make sure the context isn't freed. 77 Ref<CommandEncoder> mCommandEncoder; 78 79 uint32_t mRenderTargetWidth; 80 uint32_t mRenderTargetHeight; 81 82 // The resources for occlusion query 83 Ref<QuerySetBase> mOcclusionQuerySet; 84 uint32_t mCurrentOcclusionQueryIndex = 0; 85 bool mOcclusionQueryActive = false; 86 }; 87 88 } // namespace dawn_native 89 90 #endif // DAWNNATIVE_RENDERPASSENCODER_H_ 91