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
|
#ifndef __ASURA_ENGINE_SHADER_H__
#define __ASURA_ENGINE_SHADER_H__
#include <map>
#include <string>
#include <asura-utils/exceptions/exception.h>
#include <asura-utils/scripting/portable.hpp>
#include <asura-utils/io/renewable.h>
#include <asura-utils/math/vector2.hpp>
#include <asura-utils/math/vector3.hpp>
#include <asura-utils/math/vector4.h>
#include <asura-utils/math/matrix44.h>
#include <asura-utils/stringmap.hpp>
#include <asura-utils/manager.hpp>
#include "gl.h"
#include "color.h"
#include "texture.h"
#include "gpu_buffer.h"
namespace AsuraEngine
{
namespace Graphics
{
///
/// һshaderһڲʼ乲ijShaderuniformsͶݣֻṩ
/// uniformsuseɫķ༭ÿshaderͨshaderҵuniforms
/// ¶frameworkmaterialá
///
class Shader ASURA_FINAL
: public Scripting::Portable<Shader>
, public AEIO::Renewable
{
public:
Shader();
~Shader();
bool Load(const std::string& vert, const std::string& frag) ASURA_THROW(Exception);
void OnUse();
void OnUnuse();
///
/// öԣЩֵframeworkrenderer汻ãImageMesh2DЩԴ
/// normalizedΪtrueݻڸbuffer¹һ255ɫһ
/// 0~1
///
void SetAttribPosition(int size, GPUBuffer* vbo, GLsizei offset = 0, GLsizei stride = 0, bool normalized = false);
void SetAttribTangent(int size, GPUBuffer* vbo, GLsizei offset = 0, GLsizei stride = 0, bool normalized = false);
void SetAttribNormal(int size, GPUBuffer* vbo, GLsizei offset = 0, GLsizei stride = 0, bool normalized = false);
void SetAttribColor(int size, GPUBuffer* vbo, GLsizei offset = 0, GLsizei stride = 0, bool normalized = false);
void SetAttribTexcoord0(int size, GPUBuffer* vbo, GLsizei offset = 0, GLsizei stride = 0, bool normalized = false);
void SetAttribTexcoord1(int size, GPUBuffer* vbo, GLsizei offset = 0, GLsizei stride = 0, bool normalized = false);
void SetAttribTexcoord2(int size, GPUBuffer* vbo, GLsizei offset = 0, GLsizei stride = 0, bool normalized = false);
void SetAttribTexcoord3(int size, GPUBuffer* vbo, GLsizei offset = 0, GLsizei stride = 0, bool normalized = false);
///
/// uniform
///
bool HasUniform(const std::string& uniform);
uint GetUniformLocation(const std::string& uniform);
void SetUniformFloat(uint loc, float value);
void SetUniformVector2(uint loc, const Math::Vector2f& vec2);
void SetUniformVector3(uint loc, const Math::Vector3f& vec3);
void SetUniformVector4(uint loc, const Math::Vector4f& vec4);
void SetUniformColor(uint loc, const Color& color);
void SetUniformMatrix44(uint loc, const Math::Matrix44& mat44);
bool SetUniformTexture(uint loc, const Texture& texture);
///
/// \uniform
///
void SetBuiltInUniforms();
float GetUniformFloat(uint loc);
AEMath::Vector2f GetUniformVector2(uint loc);
AEMath::Vector3f GetUniformVector3(uint loc);
AEMath::Vector4f GetUniformVector4s(uint loc);
AEMath::Matrix44 GetUniformMatrix44(uint loc);
GLuint GetGLProgram();
static uint GetGLTextureUnitCount();
private:
//----------------------------------------------------------------------------//
LUAX_DECL_FACTORY(Shader);
LUAX_DECL_METHOD(_New);
LUAX_DECL_METHOD(_Load);
LUAX_DECL_METHOD(_Update);
LUAX_DECL_METHOD(_HasUniform);
LUAX_DECL_METHOD(_GetUniformLocation);
LUAX_DECL_METHOD(_SetUniformFloat);
LUAX_DECL_METHOD(_SetUniformTexture);
LUAX_DECL_METHOD(_SetUniformVector2);
LUAX_DECL_METHOD(_SetUniformVector3);
LUAX_DECL_METHOD(_SetUniformVector4);
LUAX_DECL_METHOD(_SetUniformColor);
// vertex attributes
LUAX_DECL_METHOD(_SetAttribPosition);
LUAX_DECL_METHOD(_SetAttribTangent);
LUAX_DECL_METHOD(_SetAttribNormal);
LUAX_DECL_METHOD(_SetAttribColor);
LUAX_DECL_METHOD(_SetAttribTexcoord0);
LUAX_DECL_METHOD(_SetAttribTexcoord1);
LUAX_DECL_METHOD(_SetAttribTexcoord2);
LUAX_DECL_METHOD(_SetAttribTexcoord3);
// uniform
LUAX_DECL_METHOD(_SetBuiltInUniforms);
//----------------------------------------------------------------------------//
std::string GetProgramWarnings();
std::string GetShaderWarnings(GLuint shader);
void UpdateSemanticsLocations();
///
/// AsuraShader壬Ժuniformframeworkлshaderٴηװ
/// ν壬ָshaderԶıⲿʱҪṩЩֵ
/// ĻҪ
///
enum Semantics
{
// MVP
SEMANTICS_UNIFORM_MODEL_MATRIX = 0,
SEMANTICS_UNIFORM_VIEW_MATRIX,
SEMANTICS_UNIFORM_PROJECTION_MATRIX,
//
SEMANTICS_ATTRIBUTE_POSITION,
//
SEMANTICS_ATTRIBUTE_TANGENT,
//
SEMANTICS_ATTRIBUTE_NORMAL,
// UV
SEMANTICS_ATTRIBUTE_TEXCOORD0,
SEMANTICS_ATTRIBUTE_TEXCOORD1,
SEMANTICS_ATTRIBUTE_TEXCOORD2,
SEMANTICS_ATTRIBUTE_TEXCOORD3,
// ɫ
SEMANTICS_ATTRIBUTE_COLOR,
SEMANTICS_COUNT
};
///
/// Asura shader ַͳһ
///
static const char* SemanticsName[SEMANTICS_COUNT];
GLuint mProgram;
GLuint mVertShader;
GLuint mFragShader;
//
GLint mMVP[3];
GLint mPosition;
GLint mTangent;
GLint mNormal;
GLint mColor;
GLint mTexcoord0;
GLint mTexcoord1;
GLint mTexcoord2;
GLint mTexcoord3;
};
}
}
#endif
|
