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45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <functional>
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#include "video_core/pica.h"
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#include "video_core/shader_interpreter.h"
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namespace Pica {
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/*
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* Utility class to build triangles from a series of vertices,
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* according to a given triangle topology.
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*/
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template<typename VertexType>
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struct PrimitiveAssembler {
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using TriangleHandler = std::function<void(VertexType& v0,
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VertexType& v1,
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VertexType& v2)>;
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PrimitiveAssembler(Regs::TriangleTopology topology);
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/*
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* Queues a vertex, builds primitives from the vertex queue according to the given
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* triangle topology, and calls triangle_handler for each generated primitive.
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* NOTE: We could specify the triangle handler in the constructor, but this way we can
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* keep event and handler code next to each other.
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*/
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void SubmitVertex(VertexType& vtx, TriangleHandler triangle_handler);
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private:
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Regs::TriangleTopology topology;
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int buffer_index;
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VertexType buffer[2];
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bool strip_ready = false;
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};
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} // namespace
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