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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <vector>
#include "common/common_types.h"
#include "video_core/hwrasterizer_base.h"
#include "video_core/vertex_shader.h"
#include "gl_state.h"
#include "gl_rasterizer_cache.h"
class RasterizerOpenGL : public HWRasterizer {
public:
RasterizerOpenGL();
~RasterizerOpenGL() override;
/// Initialize API-specific GPU objects
void InitObjects() override;
/// Reset the rasterizer, such as flushing all caches and updating all state
void Reset() override;
/// Queues the primitive formed by the given vertices for rendering
void AddTriangle(const Pica::VertexShader::OutputVertex& v0,
const Pica::VertexShader::OutputVertex& v1,
const Pica::VertexShader::OutputVertex& v2) override;
/// Draw the current batch of triangles
void DrawTriangles() override;
/// Commit the rasterizer's framebuffer contents immediately to the current 3DS memory framebuffer
void CommitFramebuffer() override;
/// Notify rasterizer that the specified PICA register has been changed
void NotifyPicaRegisterChanged(u32 id) override;
/// Notify rasterizer that the specified 3DS memory region will be read from after this notification
void NotifyPreRead(PAddr addr, u32 size) override;
/// Notify rasterizer that a 3DS memory region has been changed
void NotifyFlush(PAddr addr, u32 size) override;
private:
/// Structure used for managing texture environment states
struct TEVConfigUniforms {
GLuint enabled;
GLuint color_sources;
GLuint alpha_sources;
GLuint color_modifiers;
GLuint alpha_modifiers;
GLuint color_alpha_op;
GLuint color_alpha_multiplier;
GLuint const_color;
GLuint updates_combiner_buffer_color_alpha;
};
/// Structure used for storing information about color textures
struct TextureInfo {
OGLTexture texture;
GLsizei width;
GLsizei height;
Pica::Regs::ColorFormat format;
GLenum gl_format;
GLenum gl_type;
};
/// Structure used for storing information about depth textures
struct DepthTextureInfo {
OGLTexture texture;
GLsizei width;
GLsizei height;
Pica::Regs::DepthFormat format;
GLenum gl_format;
GLenum gl_type;
};
/// Structure that the hardware rendered vertices are composed of
struct HardwareVertex {
HardwareVertex(const Pica::VertexShader::OutputVertex& v) {
position[0] = v.pos.x.ToFloat32();
position[1] = v.pos.y.ToFloat32();
position[2] = v.pos.z.ToFloat32();
position[3] = v.pos.w.ToFloat32();
color[0] = v.color.x.ToFloat32();
color[1] = v.color.y.ToFloat32();
color[2] = v.color.z.ToFloat32();
color[3] = v.color.w.ToFloat32();
tex_coord0[0] = v.tc0.x.ToFloat32();
tex_coord0[1] = v.tc0.y.ToFloat32();
tex_coord1[0] = v.tc1.x.ToFloat32();
tex_coord1[1] = v.tc1.y.ToFloat32();
tex_coord2[0] = v.tc2.x.ToFloat32();
tex_coord2[1] = v.tc2.y.ToFloat32();
}
GLfloat position[4];
GLfloat color[4];
GLfloat tex_coord0[2];
GLfloat tex_coord1[2];
GLfloat tex_coord2[2];
};
/// Reconfigure the OpenGL color texture to use the given format and dimensions
void ReconfigureColorTexture(TextureInfo& texture, Pica::Regs::ColorFormat format, u32 width, u32 height);
/// Reconfigure the OpenGL depth texture to use the given format and dimensions
void ReconfigureDepthTexture(DepthTextureInfo& texture, Pica::Regs::DepthFormat format, u32 width, u32 height);
/// Syncs the state and contents of the OpenGL framebuffer to match the current PICA framebuffer
void SyncFramebuffer();
/// Syncs the cull mode to match the PICA register
void SyncCullMode();
/// Syncs the blend enabled status to match the PICA register
void SyncBlendEnabled();
/// Syncs the blend functions to match the PICA register
void SyncBlendFuncs();
/// Syncs the blend color to match the PICA register
void SyncBlendColor();
/// Syncs the alpha test states to match the PICA register
void SyncAlphaTest();
/// Syncs the logic op states to match the PICA register
void SyncLogicOp();
/// Syncs the stencil test states to match the PICA register
void SyncStencilTest();
/// Syncs the depth test states to match the PICA register
void SyncDepthTest();
/// Syncs the specified TEV stage's color and alpha sources to match the PICA register
void SyncTevSources(unsigned stage_index, const Pica::Regs::TevStageConfig& config);
/// Syncs the specified TEV stage's color and alpha modifiers to match the PICA register
void SyncTevModifiers(unsigned stage_index, const Pica::Regs::TevStageConfig& config);
/// Syncs the specified TEV stage's color and alpha combiner operations to match the PICA register
void SyncTevOps(unsigned stage_index, const Pica::Regs::TevStageConfig& config);
/// Syncs the specified TEV stage's constant color to match the PICA register
void SyncTevColor(unsigned stage_index, const Pica::Regs::TevStageConfig& config);
/// Syncs the specified TEV stage's color and alpha multipliers to match the PICA register
void SyncTevMultipliers(unsigned stage_index, const Pica::Regs::TevStageConfig& config);
/// Syncs the TEV combiner color buffer to match the PICA register
void SyncCombinerColor();
/// Syncs the TEV combiner write flags to match the PICA register
void SyncCombinerWriteFlags();
/// Syncs the remaining OpenGL drawing state to match the current PICA state
void SyncDrawState();
/// Copies the 3DS color framebuffer into the OpenGL color framebuffer texture
void ReloadColorBuffer();
/// Copies the 3DS depth framebuffer into the OpenGL depth framebuffer texture
void ReloadDepthBuffer();
/**
* Save the current OpenGL color framebuffer to the current PICA framebuffer in 3DS memory
* Loads the OpenGL framebuffer textures into temporary buffers
* Then copies into the 3DS framebuffer using proper Morton order
*/
void CommitColorBuffer();
/**
* Save the current OpenGL depth framebuffer to the current PICA framebuffer in 3DS memory
* Loads the OpenGL framebuffer textures into temporary buffers
* Then copies into the 3DS framebuffer using proper Morton order
*/
void CommitDepthBuffer();
RasterizerCacheOpenGL res_cache;
std::vector<HardwareVertex> vertex_batch;
OpenGLState state;
PAddr last_fb_color_addr;
PAddr last_fb_depth_addr;
// Hardware rasterizer
TextureInfo fb_color_texture;
DepthTextureInfo fb_depth_texture;
OGLShader shader;
OGLVertexArray vertex_array;
OGLBuffer vertex_buffer;
OGLFramebuffer framebuffer;
// Hardware vertex shader
GLuint attrib_position;
GLuint attrib_color;
GLuint attrib_texcoords;
// Hardware fragment shader
GLuint uniform_alphatest_enabled;
GLuint uniform_alphatest_func;
GLuint uniform_alphatest_ref;
GLuint uniform_tex;
GLuint uniform_tev_combiner_buffer_color;
TEVConfigUniforms uniform_tev_cfgs[6];
};
|
