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citra/src/video_core/pica.cpp
Lioncash 5ac4636a14 pica_state: Make use of std::array
Same behavior, stronger typing.
2020-04-27 15:35:18 -04:00

72 lines
1.9 KiB
C++

// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cstring>
#include <type_traits>
#include "core/global.h"
#include "video_core/geometry_pipeline.h"
#include "video_core/pica.h"
#include "video_core/pica_state.h"
#include "video_core/renderer_base.h"
#include "video_core/video_core.h"
namespace Core {
template <>
Pica::State& Global() {
return Pica::g_state;
}
} // namespace Core
namespace Pica {
State g_state;
void Init() {
g_state.Reset();
}
void Shutdown() {
Shader::Shutdown();
}
template <typename T>
void Zero(T& o) {
static_assert(std::is_trivially_copyable_v<T>,
"It's undefined behavior to memset a non-trivially copyable type");
memset(&o, 0, sizeof(o));
}
State::State() : geometry_pipeline(*this) {
auto SubmitVertex = [this](const Shader::AttributeBuffer& vertex) {
using Pica::Shader::OutputVertex;
auto AddTriangle = [this](const OutputVertex& v0, const OutputVertex& v1,
const OutputVertex& v2) {
VideoCore::g_renderer->Rasterizer()->AddTriangle(v0, v1, v2);
};
primitive_assembler.SubmitVertex(
Shader::OutputVertex::FromAttributeBuffer(regs.rasterizer, vertex), AddTriangle);
};
auto SetWinding = [this]() { primitive_assembler.SetWinding(); };
g_state.gs_unit.SetVertexHandler(SubmitVertex, SetWinding);
g_state.geometry_pipeline.SetVertexHandler(SubmitVertex);
}
void State::Reset() {
Zero(regs);
Zero(vs);
Zero(gs);
Zero(cmd_list);
Zero(immediate);
primitive_assembler.Reconfigure(PipelineRegs::TriangleTopology::List);
vs_float_regs_counter = 0;
vs_uniform_write_buffer.fill(0);
gs_float_regs_counter = 0;
gs_uniform_write_buffer.fill(0);
default_attr_counter = 0;
default_attr_write_buffer.fill(0);
}
} // namespace Pica