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-rw-r--r--src/video_core/shader/shader.cpp154
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diff --git a/src/video_core/shader/shader.cpp b/src/video_core/shader/shader.cpp
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--- a/src/video_core/shader/shader.cpp
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1// Copyright 2015 Citra Emulator Project
2// Licensed under GPLv2 or any later version
3// Refer to the license.txt file included.
4
5#include <cmath>
6#include <cstring>
7#include "common/bit_set.h"
8#include "common/logging/log.h"
9#include "common/microprofile.h"
10#include "video_core/pica_state.h"
11#include "video_core/regs_rasterizer.h"
12#include "video_core/regs_shader.h"
13#include "video_core/shader/shader.h"
14#include "video_core/shader/shader_interpreter.h"
15#ifdef ARCHITECTURE_x86_64
16#include "video_core/shader/shader_jit_x64.h"
17#endif // ARCHITECTURE_x86_64
18#include "video_core/video_core.h"
19
20namespace Pica {
21
22namespace Shader {
23
24OutputVertex OutputVertex::FromAttributeBuffer(const RasterizerRegs& regs,
25 const AttributeBuffer& input) {
26 // Setup output data
27 union {
28 OutputVertex ret{};
29 std::array<float24, 24> vertex_slots;
30 };
31 static_assert(sizeof(vertex_slots) == sizeof(ret), "Struct and array have different sizes.");
32
33 unsigned int num_attributes = regs.vs_output_total;
34 ASSERT(num_attributes <= 7);
35 for (unsigned int i = 0; i < num_attributes; ++i) {
36 const auto& output_register_map = regs.vs_output_attributes[i];
37
38 RasterizerRegs::VSOutputAttributes::Semantic semantics[4] = {
39 output_register_map.map_x, output_register_map.map_y, output_register_map.map_z,
40 output_register_map.map_w};
41
42 for (unsigned comp = 0; comp < 4; ++comp) {
43 RasterizerRegs::VSOutputAttributes::Semantic semantic = semantics[comp];
44 if (semantic < vertex_slots.size()) {
45 vertex_slots[semantic] = input.attr[i][comp];
46 } else if (semantic != RasterizerRegs::VSOutputAttributes::INVALID) {
47 LOG_ERROR(HW_GPU, "Invalid/unknown semantic id: %u", (unsigned int)semantic);
48 }
49 }
50 }
51
52 // The hardware takes the absolute and saturates vertex colors like this, *before* doing
53 // interpolation
54 for (unsigned i = 0; i < 4; ++i) {
55 float c = std::fabs(ret.color[i].ToFloat32());
56 ret.color[i] = float24::FromFloat32(c < 1.0f ? c : 1.0f);
57 }
58
59 LOG_TRACE(HW_GPU, "Output vertex: pos(%.2f, %.2f, %.2f, %.2f), quat(%.2f, %.2f, %.2f, %.2f), "
60 "col(%.2f, %.2f, %.2f, %.2f), tc0(%.2f, %.2f), view(%.2f, %.2f, %.2f)",
61 ret.pos.x.ToFloat32(), ret.pos.y.ToFloat32(), ret.pos.z.ToFloat32(),
62 ret.pos.w.ToFloat32(), ret.quat.x.ToFloat32(), ret.quat.y.ToFloat32(),
63 ret.quat.z.ToFloat32(), ret.quat.w.ToFloat32(), ret.color.x.ToFloat32(),
64 ret.color.y.ToFloat32(), ret.color.z.ToFloat32(), ret.color.w.ToFloat32(),
65 ret.tc0.u().ToFloat32(), ret.tc0.v().ToFloat32(), ret.view.x.ToFloat32(),
66 ret.view.y.ToFloat32(), ret.view.z.ToFloat32());
67
68 return ret;
69}
70
71void UnitState::LoadInput(const ShaderRegs& config, const AttributeBuffer& input) {
72 const unsigned max_attribute = config.max_input_attribute_index;
73
74 for (unsigned attr = 0; attr <= max_attribute; ++attr) {
75 unsigned reg = config.GetRegisterForAttribute(attr);
76 registers.input[reg] = input.attr[attr];
77 }
78}
79
80void UnitState::WriteOutput(const ShaderRegs& config, AttributeBuffer& output) {
81 unsigned int output_i = 0;
82 for (unsigned int reg : Common::BitSet<u32>(config.output_mask)) {
83 output.attr[output_i++] = registers.output[reg];
84 }
85}
86
87UnitState::UnitState(GSEmitter* emitter) : emitter_ptr(emitter) {}
88
89GSEmitter::GSEmitter() {
90 handlers = new Handlers;
91}
92
93GSEmitter::~GSEmitter() {
94 delete handlers;
95}
96
97void GSEmitter::Emit(Math::Vec4<float24> (&vertex)[16]) {
98 ASSERT(vertex_id < 3);
99 std::copy(std::begin(vertex), std::end(vertex), buffer[vertex_id].begin());
100 if (prim_emit) {
101 if (winding)
102 handlers->winding_setter();
103 for (size_t i = 0; i < buffer.size(); ++i) {
104 AttributeBuffer output;
105 unsigned int output_i = 0;
106 for (unsigned int reg : Common::BitSet<u32>(output_mask)) {
107 output.attr[output_i++] = buffer[i][reg];
108 }
109 handlers->vertex_handler(output);
110 }
111 }
112}
113
114GSUnitState::GSUnitState() : UnitState(&emitter) {}
115
116void GSUnitState::SetVertexHandler(VertexHandler vertex_handler, WindingSetter winding_setter) {
117 emitter.handlers->vertex_handler = std::move(vertex_handler);
118 emitter.handlers->winding_setter = std::move(winding_setter);
119}
120
121void GSUnitState::ConfigOutput(const ShaderRegs& config) {
122 emitter.output_mask = config.output_mask;
123}
124
125MICROPROFILE_DEFINE(GPU_Shader, "GPU", "Shader", MP_RGB(50, 50, 240));
126
127#ifdef ARCHITECTURE_x86_64
128static std::unique_ptr<JitX64Engine> jit_engine;
129#endif // ARCHITECTURE_x86_64
130static InterpreterEngine interpreter_engine;
131
132ShaderEngine* GetEngine() {
133#ifdef ARCHITECTURE_x86_64
134 // TODO(yuriks): Re-initialize on each change rather than being persistent
135 if (VideoCore::g_shader_jit_enabled) {
136 if (jit_engine == nullptr) {
137 jit_engine = std::make_unique<JitX64Engine>();
138 }
139 return jit_engine.get();
140 }
141#endif // ARCHITECTURE_x86_64
142
143 return &interpreter_engine;
144}
145
146void Shutdown() {
147#ifdef ARCHITECTURE_x86_64
148 jit_engine = nullptr;
149#endif // ARCHITECTURE_x86_64
150}
151
152} // namespace Shader
153
154} // namespace Pica