yuzu/src/video_core/primitive_assembly.cpp

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// 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.
#include "video_core/primitive_assembly.h"
#include "common/logging/log.h"
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#include "video_core/pica.h"
#include "video_core/shader/shader.h"
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namespace Pica {
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template <typename VertexType>
PrimitiveAssembler<VertexType>::PrimitiveAssembler(Regs::TriangleTopology topology)
: topology(topology), buffer_index(0) {}
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template <typename VertexType>
void PrimitiveAssembler<VertexType>::SubmitVertex(VertexType& vtx,
TriangleHandler triangle_handler) {
switch (topology) {
// TODO: Figure out what's different with TriangleTopology::Shader.
case Regs::TriangleTopology::List:
case Regs::TriangleTopology::Shader:
if (buffer_index < 2) {
buffer[buffer_index++] = vtx;
} else {
buffer_index = 0;
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triangle_handler(buffer[0], buffer[1], vtx);
}
break;
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case Regs::TriangleTopology::Strip:
case Regs::TriangleTopology::Fan:
if (strip_ready)
triangle_handler(buffer[0], buffer[1], vtx);
buffer[buffer_index] = vtx;
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strip_ready |= (buffer_index == 1);
if (topology == Regs::TriangleTopology::Strip)
buffer_index = !buffer_index;
else if (topology == Regs::TriangleTopology::Fan)
buffer_index = 1;
break;
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default:
LOG_ERROR(HW_GPU, "Unknown triangle topology %x:", (int)topology);
break;
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}
}
template <typename VertexType>
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void PrimitiveAssembler<VertexType>::Reset() {
buffer_index = 0;
strip_ready = false;
}
template <typename VertexType>
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void PrimitiveAssembler<VertexType>::Reconfigure(Regs::TriangleTopology topology) {
Reset();
this->topology = topology;
}
// explicitly instantiate use cases
template struct PrimitiveAssembler<Shader::OutputVertex>;
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} // namespace