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https://github.com/encounter/dawn-cmake.git
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6f7749cce9
This as an API change to get closer to the direction in which WebGPU is headed. The API change in next.json caused a ton of files to be changed in the same commit to keep things compiling. API: the Framebuffer and RenderPass objects are now merged in a single RenderPassInfo that contains the attachments, loadOps and clear values for a BeginRenderPass command. The concept of subpass is removed. The RenderPass creation argument to RenderPipelines is replaced by explicitly setting the format of attachments for RenderPipeline. Validation: SetPipeline checks are changed to check that the attachments info set on a RenderPipeline matches the attachments of the render pass. Backends: Most changes are simplifications of the backends that no longer require and indirection to query the current subpass out of the render pass in BeginSubpass, and don't need to get the attachment info from a RenderPass when creating RenderPipelines. In the Vulkan backend, a VkRenderPass cache is added to reuse VkRenderPasses between RenderPassInfos and RenderPipelines. Tests and examples: they are updated with the simplified API. Tests specific to the Framebuffer and RenderPass objects were removed and validation tests for RenderPassInfo were added. Tested by running CppHelloTriangle on all backends, end2end tests on all platforms and all examples on the GL backend.
69 lines
2.5 KiB
C++
69 lines
2.5 KiB
C++
// Copyright 2017 The NXT Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "backend/opengl/RenderPipelineGL.h"
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#include "backend/opengl/BlendStateGL.h"
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#include "backend/opengl/DepthStencilStateGL.h"
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#include "backend/opengl/InputStateGL.h"
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#include "backend/opengl/OpenGLBackend.h"
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#include "backend/opengl/PersistentPipelineStateGL.h"
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namespace backend { namespace opengl {
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namespace {
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GLenum GLPrimitiveTopology(nxt::PrimitiveTopology primitiveTopology) {
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switch (primitiveTopology) {
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case nxt::PrimitiveTopology::PointList:
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return GL_POINTS;
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case nxt::PrimitiveTopology::LineList:
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return GL_LINES;
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case nxt::PrimitiveTopology::LineStrip:
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return GL_LINE_STRIP;
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case nxt::PrimitiveTopology::TriangleList:
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return GL_TRIANGLES;
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case nxt::PrimitiveTopology::TriangleStrip:
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return GL_TRIANGLE_STRIP;
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default:
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UNREACHABLE();
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}
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}
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} // namespace
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RenderPipeline::RenderPipeline(RenderPipelineBuilder* builder)
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: RenderPipelineBase(builder),
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PipelineGL(this, builder),
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mGlPrimitiveTopology(GLPrimitiveTopology(GetPrimitiveTopology())) {
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}
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GLenum RenderPipeline::GetGLPrimitiveTopology() const {
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return mGlPrimitiveTopology;
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}
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void RenderPipeline::ApplyNow(PersistentPipelineState& persistentPipelineState) {
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PipelineGL::ApplyNow();
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auto inputState = ToBackend(GetInputState());
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glBindVertexArray(inputState->GetVAO());
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auto depthStencilState = ToBackend(GetDepthStencilState());
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depthStencilState->ApplyNow(persistentPipelineState);
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for (uint32_t attachmentSlot : IterateBitSet(GetColorAttachmentsMask())) {
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ToBackend(GetBlendState(attachmentSlot))->ApplyNow(attachmentSlot);
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}
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}
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}} // namespace backend::opengl
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