blob: 89eb30dfccb82a33c83210ae6c92dc230cf9dd5d (
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
|
// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <type_traits>
#include <glad/glad.h>
#include "video_core/engines/maxwell_3d.h"
namespace OpenGL {
class OpenGLState {
public:
bool rasterizer_discard = false; // GL_RASTERIZER_DISCARD
struct ColorMask {
GLboolean red_enabled = GL_TRUE;
GLboolean green_enabled = GL_TRUE;
GLboolean blue_enabled = GL_TRUE;
GLboolean alpha_enabled = GL_TRUE;
};
std::array<ColorMask, Tegra::Engines::Maxwell3D::Regs::NumRenderTargets>
color_mask; // GL_COLOR_WRITEMASK
struct {
bool test_enabled = false; // GL_STENCIL_TEST
struct {
GLenum test_func = GL_ALWAYS; // GL_STENCIL_FUNC
GLint test_ref = 0; // GL_STENCIL_REF
GLuint test_mask = 0xFFFFFFFF; // GL_STENCIL_VALUE_MASK
GLuint write_mask = 0xFFFFFFFF; // GL_STENCIL_WRITEMASK
GLenum action_stencil_fail = GL_KEEP; // GL_STENCIL_FAIL
GLenum action_depth_fail = GL_KEEP; // GL_STENCIL_PASS_DEPTH_FAIL
GLenum action_depth_pass = GL_KEEP; // GL_STENCIL_PASS_DEPTH_PASS
} front, back;
} stencil;
struct Blend {
bool enabled = false; // GL_BLEND
GLenum rgb_equation = GL_FUNC_ADD; // GL_BLEND_EQUATION_RGB
GLenum a_equation = GL_FUNC_ADD; // GL_BLEND_EQUATION_ALPHA
GLenum src_rgb_func = GL_ONE; // GL_BLEND_SRC_RGB
GLenum dst_rgb_func = GL_ZERO; // GL_BLEND_DST_RGB
GLenum src_a_func = GL_ONE; // GL_BLEND_SRC_ALPHA
GLenum dst_a_func = GL_ZERO; // GL_BLEND_DST_ALPHA
};
std::array<Blend, Tegra::Engines::Maxwell3D::Regs::NumRenderTargets> blend;
struct {
bool enabled = false;
} independant_blend;
static constexpr std::size_t NumSamplers = 32 * 5;
static constexpr std::size_t NumImages = 8 * 5;
std::array<GLuint, NumSamplers> textures = {};
std::array<GLuint, NumSamplers> samplers = {};
std::array<GLuint, NumImages> images = {};
struct {
GLuint read_framebuffer = 0; // GL_READ_FRAMEBUFFER_BINDING
GLuint draw_framebuffer = 0; // GL_DRAW_FRAMEBUFFER_BINDING
GLuint shader_program = 0; // GL_CURRENT_PROGRAM
GLuint program_pipeline = 0; // GL_PROGRAM_PIPELINE_BINDING
} draw;
struct Viewport {
GLint x = 0;
GLint y = 0;
GLint width = 0;
GLint height = 0;
GLfloat depth_range_near = 0.0f; // GL_DEPTH_RANGE
GLfloat depth_range_far = 1.0f; // GL_DEPTH_RANGE
struct {
bool enabled = false; // GL_SCISSOR_TEST
GLint x = 0;
GLint y = 0;
GLsizei width = 0;
GLsizei height = 0;
} scissor;
};
std::array<Viewport, Tegra::Engines::Maxwell3D::Regs::NumViewports> viewports;
std::array<bool, 8> clip_distance = {}; // GL_CLIP_DISTANCE
struct {
GLenum origin = GL_LOWER_LEFT;
GLenum depth_mode = GL_NEGATIVE_ONE_TO_ONE;
} clip_control;
GLuint renderbuffer{}; // GL_RENDERBUFFER_BINDING
OpenGLState();
/// Get the currently active OpenGL state
static OpenGLState GetCurState() {
return cur_state;
}
void SetDefaultViewports();
/// Apply this state as the current OpenGL state
void Apply();
void ApplyFramebufferState();
void ApplyShaderProgram();
void ApplyProgramPipeline();
void ApplyClipDistances();
void ApplyRasterizerDiscard();
void ApplyColorMask();
void ApplyStencilTest();
void ApplyViewport();
void ApplyTargetBlending(std::size_t target, bool force);
void ApplyGlobalBlending();
void ApplyBlending();
void ApplyTextures();
void ApplySamplers();
void ApplyImages();
void ApplyClipControl();
void ApplyRenderBuffer();
/// Resets any references to the given resource
OpenGLState& UnbindTexture(GLuint handle);
OpenGLState& ResetSampler(GLuint handle);
OpenGLState& ResetProgram(GLuint handle);
OpenGLState& ResetPipeline(GLuint handle);
OpenGLState& ResetFramebuffer(GLuint handle);
OpenGLState& ResetRenderbuffer(GLuint handle);
/// Viewport does not affects glClearBuffer so emulate viewport using scissor test
void EmulateViewportWithScissor();
private:
static OpenGLState cur_state;
};
static_assert(std::is_trivially_copyable_v<OpenGLState>);
} // namespace OpenGL
|