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
|
#include <exception>
#include "Runtime/Debug/log.h"
#include "Shader.h"
#include "OpenGL.h"
void checkCompileshaderErrorors(GLuint shader, std::string type)
{
GLint success;
GLchar infoLog[1024];
std::string shaderError = "";
if (type != "PROGRAM")
{
glGetShaderiv(shader, GL_COMPILE_STATUS, &success);
if (!success)
{
glGetShaderInfoLog(shader, 1024, NULL, infoLog);
shaderError = "ERROR::SHADER_COMPILATION_ERROR of type: " + type + "\n" + infoLog;
}
}
else
{
glGetProgramiv(shader, GL_LINK_STATUS, &success);
if (!success)
{
glGetProgramInfoLog(shader, 1024, NULL, infoLog);
shaderError = "ERROR::SHADER_COMPILATION_ERROR of type: " + type + "\n" + infoLog;
}
}
if (!success)
{
throw ShaderCompileExecption(shaderError);
}
}
Shader::Shader(LuaBind::VM*vm, bool keepSrc)
: NativeClass<Shader>(vm)
, m_KeepSrc(keepSrc)
{
}
Shader::Shader(LuaBind::VM* vm, std::string& vert, std::string& frag, bool keepSrc)
: NativeClass<Shader>(vm)
, m_KeepSrc(keepSrc)
{
const char* vertCode = vert.c_str();
const char* fragCode = frag.c_str();
// vertex shader
m_VertID = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(m_VertID, 1, &vertCode, NULL);
glCompileShader(m_VertID);
checkCompileshaderErrorors(m_VertID, "VERTEX");
// fragment Shader
m_FragID = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(m_FragID, 1, &fragCode, NULL);
glCompileShader(m_FragID);
checkCompileshaderErrorors(m_FragID, "FRAGMENT");
// create program
m_ProgramID = glCreateProgram();
glAttachShader(m_ProgramID, m_VertID);
glAttachShader(m_ProgramID, m_FragID);
glLinkProgram(m_ProgramID);
checkCompileshaderErrorors(m_FragID, "PROGRAM");
// keep src
if (keepSrc)
{
m_VertSrc = vert;
m_FragSrc = frag;
}
}
Shader::~Shader()
{
glDeleteProgram(m_ProgramID);
glDeleteShader(m_VertID);
glDeleteShader(m_FragID);
}
void Shader::ReCompile(std::string& vert, std::string frag)
{
const char* vertCode = vert.c_str();
const char* fragCode = frag.c_str();
// vertex shader
glShaderSource(m_VertID, 1, &vertCode, NULL);
glCompileShader(m_VertID);
checkCompileshaderErrorors(m_VertID, "VERTEX");
// fragment Shader
glShaderSource(m_FragID, 1, &fragCode, NULL);
glCompileShader(m_FragID);
checkCompileshaderErrorors(m_FragID, "FRAGMENT");
// create program
glAttachShader(m_ProgramID, m_VertID);
glAttachShader(m_ProgramID, m_FragID);
glLinkProgram(m_ProgramID);
checkCompileshaderErrorors(m_FragID, "PROGRAM");
//
if (m_KeepSrc)
{
m_VertSrc = vert;
m_FragSrc = frag;
}
}
void Shader::ReCompileVert(std::string& vert)
{
glDeleteShader(m_VertID);
const char* vertCode = vert.c_str();
// vertex shader
glShaderSource(m_VertID, 1, &vertCode, NULL);
glCompileShader(m_VertID);
checkCompileshaderErrorors(m_VertID, "VERTEX");
// create program
glAttachShader(m_ProgramID, m_VertID);
glAttachShader(m_ProgramID, m_FragID);
glLinkProgram(m_ProgramID);
checkCompileshaderErrorors(m_FragID, "PROGRAM");
//
if (m_KeepSrc)
{
m_VertSrc = vert;
}
}
void Shader::ReCompileFrag(std::string frag)
{
glDeleteShader(m_FragID);
const char* fragCode = frag.c_str();
// fragment Shader
glShaderSource(m_FragID, 1, &fragCode, NULL);
glCompileShader(m_FragID);
checkCompileshaderErrorors(m_FragID, "FRAGMENT");
// create program
glAttachShader(m_ProgramID, m_VertID);
glAttachShader(m_ProgramID, m_FragID);
glLinkProgram(m_ProgramID);
checkCompileshaderErrorors(m_FragID, "PROGRAM");
//
if (m_KeepSrc)
{
m_FragSrc = frag;
}
}
bool Shader::IsValid()
{
return m_ProgramID != 0;
}
|
