summaryrefslogtreecommitdiffstats
path: root/src/shader_recompiler/backend/glsl/glsl_emit_context.h
blob: 2b13db6e651f03fc2fc3061a171c1bbc07d63d7a (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#pragma once

#include <string>
#include <utility>
#include <vector>

#include <fmt/format.h>

#include "shader_recompiler/backend/glsl/var_alloc.h"
#include "shader_recompiler/stage.h"

namespace Shader {
struct Info;
struct Profile;
struct RuntimeInfo;
} // namespace Shader

namespace Shader::Backend {
struct Bindings;
}

namespace Shader::IR {
class Inst;
struct Program;
} // namespace Shader::IR

namespace Shader::Backend::GLSL {

struct GenericElementInfo {
    std::string name;
    u32 first_element{};
    u32 num_components{};
};

struct TextureImageDefinition {
    u32 binding;
    u32 count;
};

class EmitContext {
public:
    explicit EmitContext(IR::Program& program, Bindings& bindings, const Profile& profile_,
                         const RuntimeInfo& runtime_info_);

    template <GlslVarType type, typename... Args>
    void Add(const char* format_str, IR::Inst& inst, Args&&... args) {
        const auto var_def{var_alloc.AddDefine(inst, type)};
        if (var_def.empty()) {
            // skip assigment.
            code += fmt::format(fmt::runtime(format_str + 3), std::forward<Args>(args)...);
        } else {
            code += fmt::format(fmt::runtime(format_str), var_def, std::forward<Args>(args)...);
        }
        // TODO: Remove this
        code += '\n';
    }

    template <typename... Args>
    void AddU1(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::U1>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddF16x2(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::F16x2>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddU32(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::U32>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddF32(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::F32>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddU64(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::U64>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddF64(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::F64>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddU32x2(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::U32x2>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddF32x2(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::F32x2>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddU32x3(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::U32x3>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddF32x3(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::F32x3>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddU32x4(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::U32x4>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddF32x4(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::F32x4>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddPrecF32(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::PrecF32>(format_str, inst, args...);
    }

    template <typename... Args>
    void AddPrecF64(const char* format_str, IR::Inst& inst, Args&&... args) {
        Add<GlslVarType::PrecF64>(format_str, inst, args...);
    }

    template <typename... Args>
    void Add(const char* format_str, Args&&... args) {
        code += fmt::format(fmt::runtime(format_str), std::forward<Args>(args)...);
        // TODO: Remove this
        code += '\n';
    }

    std::string header;
    std::string code;
    VarAlloc var_alloc;
    const Info& info;
    const Profile& profile;
    const RuntimeInfo& runtime_info;

    Stage stage{};
    std::string_view stage_name = "invalid";
    std::string_view position_name = "gl_Position";

    std::vector<TextureImageDefinition> texture_buffers;
    std::vector<TextureImageDefinition> image_buffers;
    std::vector<TextureImageDefinition> textures;
    std::vector<TextureImageDefinition> images;
    std::array<std::array<GenericElementInfo, 4>, 32> output_generics{};

    u32 num_safety_loop_vars{};

    bool uses_y_direction{};
    bool uses_cc_carry{};
    bool uses_geometry_passthrough{};

private:
    void SetupExtensions();
    void DefineConstantBuffers(Bindings& bindings);
    void DefineConstantBufferIndirect();
    void DefineStorageBuffers(Bindings& bindings);
    void DefineGenericOutput(size_t index, u32 invocations);
    void DefineHelperFunctions();
    void DefineConstants();
    std::string DefineGlobalMemoryFunctions();
    void SetupImages(Bindings& bindings);
    void SetupTextures(Bindings& bindings);
};

} // namespace Shader::Backend::GLSL