3 This file is part of libmspgl
4 Copyright © 2007 Mikko Rasa, Mikkosoft Productions
5 Distributed under the LGPL
8 #define GL_GLEXT_PROTOTYPES
19 id(glCreateProgram()),
24 Program::Program(const string &vert, const string &frag):
25 id(glCreateProgram()),
29 attach_shader(*new Shader(VERTEX_SHADER, vert));
30 attach_shader(*new Shader(FRAGMENT_SHADER, frag));
38 for(list<Shader *>::iterator i=shaders.begin(); i!=shaders.end(); ++i)
44 void Program::attach_shader(Shader &shader)
46 if(find(shaders.begin(), shaders.end(), &shader)==shaders.end())
48 glAttachShader(id, shader.get_id());
49 shaders.push_back(&shader);
53 void Program::detach_shader(Shader &shader)
55 list<Shader *>::iterator i=remove(shaders.begin(), shaders.end(), &shader);
58 shaders.erase(i, shaders.end());
59 glDetachShader(id, shader.get_id());
63 void Program::set_del_shaders(bool ds)
68 void Program::bind_attribute(int index, const string &name)
70 glBindAttribLocation(id, index, name.c_str());
75 for(list<Shader *>::iterator i=shaders.begin(); i!=shaders.end(); ++i)
76 if(!(*i)->get_compiled() && !(*i)->compile())
80 linked=get_param(GL_LINK_STATUS);
84 int Program::get_param(GLenum param) const
87 glGetProgramiv(id, param, &value);
91 string Program::get_info_log() const
93 sizei len=get_param(GL_INFO_LOG_LENGTH);
95 glGetProgramInfoLog(id, len+1, reinterpret_cast<GLsizei *>(&len), log);
96 return string(log, len);
102 throw InvalidState("Program is not linked");
108 int Program::get_uniform_location(const string &n) const
110 return glGetUniformLocation(id, n.c_str());
113 void Program::uniform(int i, int v)
118 void Program::uniform(int i, float x)
123 void Program::uniform(int i, float x, float y)
125 glUniform2f(i, x, y);
128 void Program::uniform(int i, float x, float y, float z)
130 glUniform3f(i, x, y, z);
133 void Program::uniform(int i, float x, float y, float z, float w)
135 glUniform4f(i, x, y, z, w);
138 void Program::uniform_matrix4(int i, const float *v)
140 glUniformMatrix4fv(i, 1, false, v);
143 void Program::unbind()
149 void Program::maybe_bind()
155 Program *Program::cur_prog=0;
158 Program::Loader::Loader(Program &p):
161 prog.set_del_shaders(true);
163 add("vertex_shader", &Loader::vertex_shader);
164 add("fragment_shader", &Loader::fragment_shader);
167 Program::Loader::~Loader()
172 void Program::Loader::vertex_shader(const string &src)
174 prog.attach_shader(*new Shader(VERTEX_SHADER, src));
177 void Program::Loader::fragment_shader(const string &src)
179 prog.attach_shader(*new Shader(FRAGMENT_SHADER, src));