| // Copyright 2023 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // 3. Neither the name of the copyright holder nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef SRC_DAWN_NATIVE_BLITCOLORTOCOLORWITHDRAW_H_ |
| #define SRC_DAWN_NATIVE_BLITCOLORTOCOLORWITHDRAW_H_ |
| |
| #include "absl/container/flat_hash_map.h" |
| #include "dawn/native/Error.h" |
| |
| namespace dawn::native { |
| |
| class DeviceBase; |
| class RenderPassEncoder; |
| struct RenderPassDescriptor; |
| class TextureViewBase; |
| |
| struct BlitColorToColorWithDrawPipelineKey { |
| wgpu::TextureFormat colorFormat; |
| wgpu::TextureFormat depthStencilFormat; |
| uint32_t sampleCount = 1; |
| |
| struct HashFunc { |
| size_t operator()(const BlitColorToColorWithDrawPipelineKey& key) const; |
| }; |
| |
| struct EqualityFunc { |
| bool operator()(const BlitColorToColorWithDrawPipelineKey& a, |
| const BlitColorToColorWithDrawPipelineKey& b) const; |
| }; |
| }; |
| |
| using BlitColorToColorWithDrawPipelinesCache = |
| absl::flat_hash_map<BlitColorToColorWithDrawPipelineKey, |
| Ref<RenderPipelineBase>, |
| BlitColorToColorWithDrawPipelineKey::HashFunc, |
| BlitColorToColorWithDrawPipelineKey::EqualityFunc>; |
| |
| // In a MSAA render to single sampled render pass, a color attachment will be used as resolve |
| // target internally and an implicit MSAA texture will be used as the actual color attachment. |
| // |
| // This function performs the load operation for the render pass by blitting the resolve target (the |
| // original color attachment) to the implicit MSAA attachment. |
| // |
| // The function assumes that the render pass is already started. It won't break the render pass, |
| // just performing a draw call to blit. |
| // This is only valid if the device's IsResolveTextureBlitWithDrawSupported() is true. |
| MaybeError BlitMSAARenderToSingleSampledColorWithDraw( |
| DeviceBase* device, |
| RenderPassEncoder* renderEncoder, |
| const RenderPassDescriptor* renderPassDescriptor, |
| uint32_t renderPassImplicitSampleCount); |
| |
| } // namespace dawn::native |
| |
| #endif // SRC_DAWN_NATIVE_BLITCOLORTOCOLORWITHDRAW_H_ |