зеркало из https://github.com/mozilla/gecko-dev.git
71 строка
2.3 KiB
C++
71 строка
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_gfx_layers_mlgpu_RenderPassMLGPU_inl_h
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#define mozilla_gfx_layers_mlgpu_RenderPassMLGPU_inl_h
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namespace mozilla {
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namespace layers {
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template <typename Traits>
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static inline bool
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AddShaderTriangles(VertexStagingBuffer* aBuffer,
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const Traits& aTraits,
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const gfx::Polygon* aGeometry = nullptr)
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{
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typedef typename Traits::TriangleVertices TriangleVertices;
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typedef typename Traits::FirstTriangle FirstTriangle;
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typedef typename Traits::SecondTriangle SecondTriangle;
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if (!aGeometry) {
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TriangleVertices base1 = aTraits.MakeVertex(FirstTriangle());
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TriangleVertices base2 = aTraits.MakeVertex(SecondTriangle());
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auto data1 = aTraits.MakeVertexData(FirstTriangle());
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auto data2 = aTraits.MakeVertexData(SecondTriangle());
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return aBuffer->PrependItem(base1, data1) && aBuffer->PrependItem(base2, data2);
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}
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auto triangles = aTraits.GenerateTriangles(*aGeometry);
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for (const auto& triangle : triangles) {
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TriangleVertices base = aTraits.MakeVertex(triangle);
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auto data = aTraits.MakeVertexData(triangle);
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if (!aBuffer->PrependItem(base, data)) {
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return false;
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}
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}
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return true;
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}
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template <typename Traits>
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inline bool
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BatchRenderPass<Traits>::Txn::AddImpl(const Traits& aTraits)
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{
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VertexStagingBuffer* instances = mPass->GetInstances();
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if (mPass->mGeometry == GeometryMode::Polygon) {
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if (const Maybe<gfx::Polygon>& geometry = aTraits.geometry()) {
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gfx::Polygon polygon = geometry->ClipPolygon(aTraits.rect());
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if (polygon.IsEmpty()) {
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return true;
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}
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return AddShaderTriangles(instances, aTraits, &polygon);
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}
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return AddShaderTriangles(instances, aTraits);
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}
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typedef typename Traits::UnitQuadVertex UnitQuadVertex;
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typedef typename Traits::UnitQuad UnitQuad;
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UnitQuadVertex base = aTraits.MakeUnitQuadVertex();
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auto data = aTraits.MakeVertexData(UnitQuad());
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return instances->AddItem(base, data);
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}
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} // namespace layers
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} // namespace mozilla
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#endif // mozilla_gfx_layers_mlgpu_RenderPassMLGPU_inl_h
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