//
// defaultShader constructor
//
// This constructor actually compiles and links the GLSL shader,
// so it must be called with a current context active.
////////////////////////////////////////////////////////////////////////////////
defaultShader::defaultShader() : m_program(0), m_fShader(0), m_vShader(0) {
if (glShadingLanguageSupport) {
m_program = glCreateProgramObject();
m_vShader = glCreateShaderObject( GL_VERTEX_SHADER);
m_fShader = glCreateShaderObject( GL_FRAGMENT_SHADER);
glAttachObject( m_program, m_vShader);
glAttachObject( m_program, m_fShader);
const char *temp = vShader;
glShaderSource( m_vShader, 1, &temp, NULL);
temp = fShader;
glShaderSource( m_fShader, 1, &temp, NULL);
GLint success;
glCompileShader( m_vShader);
glGetObjectParameteriv( m_vShader, GL_COMPILE_STATUS, &success);
if (! success) {
//figure out why we didn't compile
char log[256];
//printf("Failed to compile vertex shader\n");
glGetInfoLog( m_vShader, 256, NULL, log);
//printf(" Infolog: %s\n", log);
}
glCompileShader( m_fShader);
glGetObjectParameteriv( m_fShader, GL_COMPILE_STATUS, &success);
if (! success) {
//figure out why we didn't compile
char log[256];
//printf("Failed to compile fragment shader\n");
glGetInfoLog( m_fShader, 256, NULL, log);
//printf(" Infolog: %s\n", log);
}
glLinkProgram( m_program);
glGetObjectParameteriv( m_program, GL_LINK_STATUS, &success);
if (! success) {
//figure out why we didn't link
char log[256];
//printf("Failed to link\n");
glGetInfoLog( m_program, 256, NULL, log);
//printf(" Infolog: %s\n", log);
}
}
}
void
cogl_program_attach_shader (CoglHandle program_handle,
CoglHandle shader_handle)
{
CoglProgram *program;
CoglShader *shader;
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
if (!cogl_is_program (program_handle) || !cogl_is_shader (shader_handle))
return;
program = _cogl_program_pointer_from_handle (program_handle);
shader = _cogl_shader_pointer_from_handle (shader_handle);
glAttachObject (program->gl_handle, shader->gl_handle);
}