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Merge pull request #5241 from lioncash/pica
pica_state: Make use of std::array where applicable
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commit
9dc0f38ffd
@ -4,6 +4,7 @@
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#include <array>
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#include <cstddef>
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#include <cstring>
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#include <memory>
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#include <utility>
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#include "common/assert.h"
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@ -31,7 +32,7 @@
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namespace Pica::CommandProcessor {
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// Expand a 4-bit mask to 4-byte mask, e.g. 0b0101 -> 0x00FF00FF
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static const u32 expand_bits_to_bytes[] = {
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constexpr std::array<u32, 16> expand_bits_to_bytes{
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0x00000000, 0x000000ff, 0x0000ff00, 0x0000ffff, 0x00ff0000, 0x00ff00ff, 0x00ffff00, 0x00ffffff,
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0xff000000, 0xff0000ff, 0xff00ff00, 0xff00ffff, 0xffff0000, 0xffff00ff, 0xffffff00, 0xffffffff,
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};
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@ -62,7 +63,8 @@ static void WriteUniformIntReg(Shader::ShaderSetup& setup, unsigned index,
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}
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static void WriteUniformFloatReg(ShaderRegs& config, Shader::ShaderSetup& setup,
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int& float_regs_counter, u32 uniform_write_buffer[4], u32 value) {
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int& float_regs_counter, std::array<u32, 4>& uniform_write_buffer,
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u32 value) {
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auto& uniform_setup = config.uniform_setup;
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// TODO: Does actual hardware indeed keep an intermediate buffer or does
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@ -85,8 +87,11 @@ static void WriteUniformFloatReg(ShaderRegs& config, Shader::ShaderSetup& setup,
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// NOTE: The destination component order indeed is "backwards"
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if (uniform_setup.IsFloat32()) {
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for (auto i : {0, 1, 2, 3})
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uniform[3 - i] = float24::FromFloat32(*(float*)(&uniform_write_buffer[i]));
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for (auto i : {0, 1, 2, 3}) {
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float buffer_value;
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std::memcpy(&buffer_value, &uniform_write_buffer[i], sizeof(float));
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uniform[3 - i] = float24::FromFloat32(buffer_value);
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}
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} else {
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// TODO: Untested
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uniform.w = float24::FromRaw(uniform_write_buffer[0] >> 8);
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@ -3,6 +3,7 @@
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// Refer to the license.txt file included.
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#include <cstring>
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#include <type_traits>
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#include "core/global.h"
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#include "video_core/geometry_pipeline.h"
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#include "video_core/pica.h"
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@ -31,6 +32,8 @@ void Shutdown() {
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template <typename T>
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void Zero(T& o) {
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static_assert(std::is_trivially_copyable_v<T>,
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"It's undefined behavior to memset a non-trivially copyable type");
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memset(&o, 0, sizeof(o));
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}
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@ -59,10 +62,10 @@ void State::Reset() {
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Zero(immediate);
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primitive_assembler.Reconfigure(PipelineRegs::TriangleTopology::List);
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vs_float_regs_counter = 0;
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Zero(vs_uniform_write_buffer);
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vs_uniform_write_buffer.fill(0);
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gs_float_regs_counter = 0;
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Zero(gs_uniform_write_buffer);
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gs_uniform_write_buffer.fill(0);
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default_attr_counter = 0;
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Zero(default_attr_write_buffer);
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default_attr_write_buffer.fill(0);
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}
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} // namespace Pica
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@ -197,13 +197,13 @@ struct State {
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PrimitiveAssembler<Shader::OutputVertex> primitive_assembler;
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int vs_float_regs_counter = 0;
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u32 vs_uniform_write_buffer[4]{};
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std::array<u32, 4> vs_uniform_write_buffer{};
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int gs_float_regs_counter = 0;
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u32 gs_uniform_write_buffer[4]{};
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std::array<u32, 4> gs_uniform_write_buffer{};
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int default_attr_counter = 0;
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u32 default_attr_write_buffer[3]{};
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std::array<u32, 3> default_attr_write_buffer{};
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private:
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friend class boost::serialization::access;
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@ -223,11 +223,14 @@ private:
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ar& geometry_pipeline;
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ar& primitive_assembler;
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ar& vs_float_regs_counter;
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ar& vs_uniform_write_buffer;
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ar& boost::serialization::make_array(vs_uniform_write_buffer.data(),
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vs_uniform_write_buffer.size());
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ar& gs_float_regs_counter;
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ar& gs_uniform_write_buffer;
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ar& boost::serialization::make_array(gs_uniform_write_buffer.data(),
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gs_uniform_write_buffer.size());
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ar& default_attr_counter;
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ar& default_attr_write_buffer;
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ar& boost::serialization::make_array(default_attr_write_buffer.data(),
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default_attr_write_buffer.size());
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boost::serialization::split_member(ar, *this, file_version);
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}
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