FBO::FBO(const std::string& debug_name, Size size, const Params& params)
: _debug_name(debug_name), _size(size), _params(params)
, _color_tex(nullptr, size, params.color_format, TexParams::clamped_linear(), debug_name + "_color")
{
VLOG_SCOPE_F(1, "FBO %s", debug_name.c_str());
CHECK_FOR_GL_ERROR;
glGenFramebuffers(1, &_fbo_id);
CHECK_FOR_GL_ERROR;
{
FBO::Lock lock(this);
CHECK_FOR_GL_ERROR;
// glEnable(GL_TEXTURE_2D);
{
CHECK_FOR_GL_ERROR;
_color_tex.bind();
if (!_color_tex.has_data()) {
// We must init texture or we'll get a GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT:
_color_tex.set_data(nullptr);
}
glFramebufferTexture2D(
GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _color_tex.id(), 0);
CHECK_FOR_GL_ERROR;
}
CHECK_FOR_GL_ERROR;
#if !GLLIB_GLES
if (params.with_depth) {
CHECK_FOR_GL_ERROR;
glGenRenderbuffers(1, &_depth_rbo_id);
glBindRenderbuffer(GL_RENDERBUFFER, _depth_rbo_id);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT32, width(), height());
glBindRenderbuffer(GL_RENDERBUFFER, 0);
glFramebufferRenderbuffer(
GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, _depth_rbo_id);
CHECK_FOR_GL_ERROR;
}
#endif // !GLLIB_GLES
}
CHECK_FOR_GL_ERROR;
{
FBO::Lock lock(this);
auto status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
CHECK_EQ_F(status, GL_FRAMEBUFFER_COMPLETE,
"Framebuffer '%s' not complete after initialization: %s",
debug_name.c_str(), framebuffer_completion_to_string(status));
}
CHECK_FOR_GL_ERROR;
}
void test_levels()
{
LOG_SCOPE_FUNCTION(INFO);
{
VLOG_SCOPE_F(1, "Scope with verbosity 1");
LOG_F(3, "Only visible with -v 3 or higher");
LOG_F(2, "Only visible with -v 2 or higher");
LOG_F(1, "Only visible with -v 1 or higher");
}
LOG_F(0, "LOG_F(0)");
LOG_F(INFO, "This is some INFO");
LOG_F(WARNING, "This is a WARNING");
LOG_F(ERROR, "This is a serious ERROR");
}
Program::Program(const std::string& vs, const std::string& fs, const std::string& debug_name)
: _debug_name(debug_name)
{
VLOG_SCOPE_F(1, "Compiling GLSL %s", debug_name.c_str());
CHECK_FOR_GL_ERROR;
GLuint vs_id = load_shader(GL_VERTEX_SHADER, vs.c_str(), debug_name.c_str());
GLuint fs_id = load_shader(GL_FRAGMENT_SHADER, fs.c_str(), debug_name.c_str());
_program = glCreateProgram();
#if TARGET_OS_IPHONE
// For debugger:
glLabelObjectEXT(GL_PROGRAM_OBJECT_EXT, _program, 0, debug_name.c_str());
#endif
glAttachShader(_program, vs_id);
glAttachShader(_program, fs_id);
//GLuint color_number = 0;
//glBindFragDataLocation(_program, color_number, "out_frag_color");
link_program(_program, debug_name.c_str());
/* too early to validate: uniforms haven't been bound yet.
Using two samplers of different type (sampler2D and sampler_cube)
will break the validation.
*/
//validate();
CHECK_FOR_GL_ERROR;
//debug_print();
#if 0
LOG_F(INFO, "Shader: %s", debug_name.c_str());
LOG_F(INFO, "-------------------------------------");
LOG_F(INFO, "%s", vs.c_str());
LOG_F(INFO, "-------------------------------------");
LOG_F(INFO, "%s", fs.c_str());
LOG_F(INFO, "-------------------------------------");
#endif
GLint num_attribs;
glGetProgramiv(_program, GL_ACTIVE_ATTRIBUTES, &num_attribs);
for (int i=0; i<num_attribs; ++i) {
GLint size;
GLenum type;
GLchar name[1024];
glGetActiveAttrib(_program, i, sizeof(name), NULL, &size, &type, name);
int location = glGetAttribLocation(_program, name);
CHECK_NE_F(location, -1, "Attribute '%s' not found in shader '%s'", name, _debug_name.c_str());
VLOG_F(1, "Attribute %d: %10s, %d x %s, location: %d", i, name, size, type_to_string(type), location);
_attributes.emplace_back(Attribute{name, size, type, location});
}
GLint num_uniforms;
glGetProgramiv(_program, GL_ACTIVE_UNIFORMS, &num_uniforms);
for (int i=0; i<num_uniforms; ++i) {
GLint size;
GLenum type;
GLchar name[1024];
glGetActiveUniform(_program, i, sizeof(name), NULL, &size, &type, name);
int location = glGetUniformLocation(_program, name);
CHECK_NE_F(location, -1, "Uniform '%s' not found in shader '%s'", name, _debug_name.c_str());
VLOG_F(1, "Uniform %d: %10s, %d x %s, location: %d", i, name, size, type_to_string(type), location);
_uniforms.emplace_back(Uniform{name, size, type, location});
}
}