void GLAPIENTRY
_mesa_GetProgramInfoLog(GLuint program, GLsizei bufSize,
GLsizei *length, GLchar *infoLog)
{
GET_CURRENT_CONTEXT(ctx);
get_program_info_log(ctx, program, bufSize, length, infoLog);
}
Program::Program(Shader* vertex_shader, Shader* fragment_shader)
: info_log(NULL)
{
GLuint id = glCreateProgram();
if (id == 0) {
puts("An error occured creating the program object\n");
exit(EXIT_FAILURE);
}
vertex_shader->attach_to(id);
fragment_shader->attach_to(id);
glLinkProgram(id);
vertex_shader->detach_from(id);
fragment_shader->detach_from(id);
/* Program owns the two pointers, so we clean them up now */
if (vertex_shader) {
delete vertex_shader;
vertex_shader = NULL;
}
if (fragment_shader) {
delete fragment_shader;
fragment_shader = NULL;
}
// Check if the program linking was successful
GLint status = (GLint) GL_FALSE;
glGetProgramiv(id, GL_LINK_STATUS, &status);
get_program_info_log(id);
if (status != (GLint) GL_TRUE)
{
puts("OpenGL program linking failed\n");
puts("Program info log:\n");
puts( info_log );
exit(EXIT_FAILURE);
return;
}
/* Rust code has a try statement here, perhaps we should fail fast with
exit(EXIT_FAILURE) ? */
UniformMap uniforms = load_program_uniforms(id);
// There shouldn't be anything in glGetError but let's
// check to make sure.
get_error();
this->id = id;
this->uniforms = uniforms;
}
bool GlslProgram::link(bool pipeline)
{
cleanup();
if(pipeline)
{
glGenProgramPipelines(1, &m_pipeline_id);
}
else
{
m_id = glCreateProgram();
}
for(GlslShaderUptr &vv : m_shaders)
{
if(!vv->compile(pipeline))
{
return false;
}
if(pipeline)
{
glUseProgramStages(m_pipeline_id, vv->getStage(), vv->getPipelineId());
}
else
{
glAttachShader(m_id, vv->getId());
}
}
if(pipeline)
{
std::string log = get_pipeline_info_log(m_pipeline_id);
if(!log.empty())
{
std::cout << log;
return false;
}
}
else
{
glLinkProgram(m_id);
if(!get_program_link_status(m_id))
{
std::cout << get_program_info_log(m_id);
return false;
}
}
return true;
}
void GLAPIENTRY
_mesa_GetInfoLogARB(GLhandleARB object, GLsizei maxLength, GLsizei * length,
GLcharARB * infoLog)
{
GET_CURRENT_CONTEXT(ctx);
if (is_program(ctx, object)) {
get_program_info_log(ctx, object, maxLength, length, infoLog);
}
else if (is_shader(ctx, object)) {
get_shader_info_log(ctx, object, maxLength, length, infoLog);
}
else {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetInfoLogARB");
}
}
