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
|
#ifndef __ASURA_ENGINE_GFX_DEVICE_H__
#define __ASURA_ENGINE_GFX_DEVICE_H__
#include <stack>
#include <glad/glad.h>
#include <asura-utils/scripting/portable.hpp>
#include <asura-utils/math/rect.hpp>
#include <asura-utils/math/matrix44.h>
#include <asura-utils/math/vector4.h>
#include "color.h"
#include "matrix_stack.h"
namespace AsuraEngine
{
namespace Graphics
{
class Profiler;
class Shader;
enum MatrixMode
{
MATRIX_MODE_PROJECTION = 0,
MATRIX_MODE_MODEL = 1,
MATRIX_MODE_VIEW = 2,
};
enum GLParams
{
GL_PARAM_MAX_TEXTURE_UNIT = 1,
};
///
/// OpenGLģһЩopengl״̬١ڱ༭രڻ£һڶӦһhwnd
/// һhdcԼopengl contextʹwglMakeCurrent(hdc, glc)ָǰ̶߳
/// Ⱦhdcopenglglcglм¼ľһ̵߳һڵһOpenGL
/// ĵ״ֶ̬֧Ⱦ
///
class GfxDevice : public AEScripting::Portable<GfxDevice>
{
public:
GfxDevice();
~GfxDevice();
int GetParam(GLParams param);
bool Init(const AEMath::Recti& viewport);
bool Inited();
void SetViewport(const AEMath::Recti viewport);
const AEMath::Recti& GetViewport();
void UseShader(Shader* shader);
void UnuseShader();
Shader* GetShader();
void DrawArrays(GLenum mode, GLint first, GLsizei count);
void SetMatrixMode(MatrixMode mode);
MatrixMode GetMatrixMode();
void PushMatrix();
void PopMatrix();
void LoadIdentity();
void Rotate(float angle);
void Translate(float x, float y);
void Scale(float x, float y);
void Ortho(float l, float r, float b, float t, float n, float f);
AEMath::Matrix44& GetMatrix(MatrixMode mode);
AEMath::Matrix44 GetMVPMatrix();
uint GetMatrixDepth();
uint GetMatrixIndex();
void SetDrawColor(float r, float g, float b, float a);
Color& GetDrawColor();
void WipeError();
bool HasError();
GLenum GetError();
struct
{
Shader* shader; ///< ǰʹõshader
AEMath::Recti viewport; ///< ǰлHDC߱ڴСı߲ˢʱ䶯
MatrixStack matrix[3]; ///< model, view, projection
MatrixMode matrixMode; ///< ǰľ
Color drawColor; ///< Ƶɫ
} state;
#if ASURA_GL_PROFILE
struct
{
uint drawCall; ///< ͳdrawcall
uint canvasSwitch; ///< лtextureĴ
uint shaderSwitch; ///< лshaderĴ
} stats;
#endif
private:
friend class Profiler;
//----------------------------------------------------------------------------//
LUAX_DECL_SINGLETON(GfxDevice);
LUAX_DECL_ENUM(MatrixMode, 1);
LUAX_DECL_ENUM(GLParams, 1);
LUAX_DECL_METHOD(_SetMatrixMode);
LUAX_DECL_METHOD(_GetMatrixMode);
LUAX_DECL_METHOD(_PushMatrix);
LUAX_DECL_METHOD(_PopMatrix);
LUAX_DECL_METHOD(_LoadIdentity);
LUAX_DECL_METHOD(_Rotate);
LUAX_DECL_METHOD(_Translate);
LUAX_DECL_METHOD(_Scale);
LUAX_DECL_METHOD(_Ortho);
LUAX_DECL_METHOD(_GetMatrixDepth);
LUAX_DECL_METHOD(_GetMatrixIndex);
LUAX_DECL_METHOD(_UseShader);
LUAX_DECL_METHOD(_UnuseShader);
//----------------------------------------------------------------------------//
};
///
/// OpenGL
///
extern GfxDevice gfx;
}
}
#endif
|
