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
|
// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include "common/bit_field.h"
#include "common/common_types.h"
#include "common/vector_math.h"
#include "video_core/primitive_assembly.h"
#include "video_core/regs.h"
#include "video_core/shader/shader.h"
namespace Pica {
/// Struct used to describe current Pica state
struct State {
void Reset();
/// Pica registers
Regs regs;
Shader::ShaderSetup vs;
Shader::ShaderSetup gs;
Shader::AttributeBuffer input_default_attributes;
struct ProcTex {
union ValueEntry {
u32 raw;
// LUT value, encoded as 12-bit fixed point, with 12 fraction bits
BitField<0, 12, u32> value; // 0.0.12 fixed point
// Difference between two entry values. Used for efficient interpolation.
// 0.0.12 fixed point with two's complement. The range is [-0.5, 0.5).
// Note: the type of this is different from the one of lighting LUT
BitField<12, 12, s32> difference;
float ToFloat() const {
return static_cast<float>(value) / 4095.f;
}
float DiffToFloat() const {
return static_cast<float>(difference) / 4095.f;
}
};
union ColorEntry {
u32 raw;
BitField<0, 8, u32> r;
BitField<8, 8, u32> g;
BitField<16, 8, u32> b;
BitField<24, 8, u32> a;
Math::Vec4<u8> ToVector() const {
return {static_cast<u8>(r), static_cast<u8>(g), static_cast<u8>(b),
static_cast<u8>(a)};
}
};
union ColorDifferenceEntry {
u32 raw;
BitField<0, 8, s32> r; // half of the difference between two ColorEntry
BitField<8, 8, s32> g;
BitField<16, 8, s32> b;
BitField<24, 8, s32> a;
Math::Vec4<s32> ToVector() const {
return Math::Vec4<s32>{r, g, b, a} * 2;
}
};
std::array<ValueEntry, 128> noise_table;
std::array<ValueEntry, 128> color_map_table;
std::array<ValueEntry, 128> alpha_map_table;
std::array<ColorEntry, 256> color_table;
std::array<ColorDifferenceEntry, 256> color_diff_table;
} proctex;
struct {
union LutEntry {
// Used for raw access
u32 raw;
// LUT value, encoded as 12-bit fixed point, with 12 fraction bits
BitField<0, 12, u32> value; // 0.0.12 fixed point
// Used by HW for efficient interpolation, Citra does not use these
BitField<12, 12, s32> difference; // 1.0.11 fixed point
float ToFloat() {
return static_cast<float>(value) / 4095.f;
}
};
std::array<std::array<LutEntry, 256>, 24> luts;
} lighting;
struct {
union LutEntry {
// Used for raw access
u32 raw;
BitField<0, 13, s32> difference; // 1.1.11 fixed point
BitField<13, 11, u32> value; // 0.0.11 fixed point
};
std::array<LutEntry, 128> lut;
} fog;
/// Current Pica command list
struct {
const u32* head_ptr;
const u32* current_ptr;
u32 length;
} cmd_list;
/// Struct used to describe immediate mode rendering state
struct ImmediateModeState {
// Used to buffer partial vertices for immediate-mode rendering.
Shader::AttributeBuffer input_vertex;
// Index of the next attribute to be loaded into `input_vertex`.
u32 current_attribute = 0;
} immediate;
// This is constructed with a dummy triangle topology
PrimitiveAssembler<Shader::OutputVertex> primitive_assembler;
};
extern State g_state; ///< Current Pica state
} // namespace
|
