blob: ccc302014c732a881c6cae0cd0851b1ebd493986 (
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
|
// 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 {
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 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
|
