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https://git.citron-emu.org/citron/emulator
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2e6bcc9ea6
1. Add geometry shader support for Princess Peach: Showtime!: - Implement proper EmitInvocationInfo handling for geometry shaders - Support input topology vertex counting in all shader backends (GLASM, GLSL, SPIRV) 2. Performance optimizations: - Replace InputTopologyVertices switch statement with a constexpr lookup table - Pre-calculate vertex counts and shifts to reduce register pressure - Eliminate redundant calculations in shader backends Signed-off-by: Zephyron <zephyron@citron-emu.org>
108 lines
2.2 KiB
C++
108 lines
2.2 KiB
C++
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <array>
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#include <map>
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#include <optional>
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#include <vector>
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#include "common/common_types.h"
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#include "shader_recompiler/varying_state.h"
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namespace Shader {
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enum class AttributeType : u8 {
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Float,
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SignedInt,
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UnsignedInt,
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SignedScaled,
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UnsignedScaled,
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Disabled,
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};
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enum class InputTopology {
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Points,
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Lines,
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LinesAdjacency,
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Triangles,
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TrianglesAdjacency,
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};
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namespace InputTopologyVertices {
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// Lookup table for vertex counts - faster than switch statement
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inline constexpr std::array<u32, 5> vertex_counts = {
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1, // Points
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2, // Lines
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4, // LinesAdjacency
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3, // Triangles
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6, // TrianglesAdjacency
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};
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// Force compile-time evaluation when possible
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inline constexpr u32 vertices(InputTopology input_topology) {
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return vertex_counts[static_cast<std::size_t>(input_topology)];
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}
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}
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enum class CompareFunction {
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Never,
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Less,
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Equal,
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LessThanEqual,
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Greater,
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NotEqual,
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GreaterThanEqual,
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Always,
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};
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enum class TessPrimitive {
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Isolines,
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Triangles,
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Quads,
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};
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enum class TessSpacing {
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Equal,
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FractionalOdd,
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FractionalEven,
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};
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struct TransformFeedbackVarying {
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u32 buffer{};
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u32 stride{};
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u32 offset{};
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u32 components{};
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};
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struct RuntimeInfo {
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std::array<AttributeType, 32> generic_input_types{};
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VaryingState previous_stage_stores;
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std::map<IR::Attribute, IR::Attribute> previous_stage_legacy_stores_mapping;
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bool convert_depth_mode{};
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bool force_early_z{};
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TessPrimitive tess_primitive{};
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TessSpacing tess_spacing{};
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bool tess_clockwise{};
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InputTopology input_topology{};
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std::optional<float> fixed_state_point_size;
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std::optional<CompareFunction> alpha_test_func;
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float alpha_test_reference{};
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/// Static Y negate value
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bool y_negate{};
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/// Use storage buffers instead of global pointers on GLASM
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bool glasm_use_storage_buffers{};
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/// Transform feedback state for each varying
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std::array<TransformFeedbackVarying, 256> xfb_varyings{};
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u32 xfb_count{0};
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};
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} // namespace Shader
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