Example #1
0
File: gl.go Project: extrame/gl
// Link links the attached shader objects
func (p *Program) Link() error {
	var val, val2 C.GLint
	C.glLinkProgram(p.i)
	C.glGetProgramiv(p.i, LINK_STATUS, &val)
	if val != TRUE {
		C.glGetProgramiv(p.i, INFO_LOG_LENGTH, &val)
		buf := make([]C.GLchar, val+1)
		C.glGetProgramInfoLog(p.i, C.GLsizei(val), nil, &buf[0])
		return errors.New(C.GoString((*C.char)(&buf[0])))
	}
	p.attr = make(map[string]C.GLuint)
	C.glGetProgramiv(p.i, ACTIVE_ATTRIBUTES, &val)
	C.glGetProgramiv(p.i, ACTIVE_ATTRIBUTE_MAX_LENGTH, &val2)
	buf := make([]C.char, val2)
	for i := C.GLuint(0); i < C.GLuint(val); i++ {
		C.glGetActiveAttrib(p.i, i, C.GLsizei(val2), nil, nil, nil, (*C.GLchar)(&buf[0]))
		p.attr[C.GoString(&buf[0])] = C.GLuint(C.glGetAttribLocation(p.i, (*C.GLchar)(&buf[0])))
	}
	p.uni = make(map[string]C.GLint)
	C.glGetProgramiv(p.i, ACTIVE_UNIFORMS, &val)
	C.glGetProgramiv(p.i, ACTIVE_UNIFORM_MAX_LENGTH, &val2)
	buf = make([]C.char, val2)
	for i := C.GLuint(0); i < C.GLuint(val); i++ {
		C.glGetActiveUniform(p.i, i, C.GLsizei(val2), nil, nil, nil, (*C.GLchar)(&buf[0]))
		p.uni[C.GoString(&buf[0])] = C.glGetUniformLocation(p.i, (*C.GLchar)(&buf[0]))
	}
	return nil
}
Example #2
0
func LinkProgram(p Program) {
	defer func() {
		errstr := errDrain()
		log.Printf("gl.LinkProgram(%v) %v", p, errstr)
	}()
	C.glLinkProgram(p.c())
}
Example #3
0
func (program *Program) Link() {
	C.glLinkProgram(program.id)

	status := C.GLint(0)
	C.glGetProgramiv(program.id, C.GL_LINK_STATUS, &status)

	if status != C.GL_TRUE {
		loglen := C.GLint(0)
		C.glGetProgramiv(program.id, C.GL_INFO_LOG_LENGTH, &loglen)
		log := (*C.GLchar)(C.malloc(C.size_t(loglen)))
		defer C.free(unsafe.Pointer(log))
		C.glGetProgramInfoLog(program.id, C.GLsizei(loglen), nil, log)
		panic(fmt.Errorf("Failed to link shader: %s", C.GoString((*C.char)(log))))
	}
}
Example #4
0
func createProgram(vertShaderSrc string, fragShaderSrc string) C.GLuint {
	vertShader := loadShader(C.GL_VERTEX_SHADER, vertShaderSrc)
	fragShader := loadShader(C.GL_FRAGMENT_SHADER, fragShaderSrc)
	prog := C.glCreateProgram()
	if prog == 0 {
		panic("Failed to create shader program")
	}
	C.glAttachShader(prog, vertShader)
	checkGLError()
	C.glAttachShader(prog, fragShader)
	checkGLError()
	C.glLinkProgram(prog)
	var linkStatus C.GLint
	C.glGetProgramiv(prog, C.GL_LINK_STATUS, &linkStatus)
	if linkStatus != C.GL_TRUE {
		log := GetProgramInfoLog(prog)
		panic(fmt.Errorf("Failed to link program: %v", log))
	}
	return prog
}
Example #5
0
func LinkProgram(p Program) {
	C.glLinkProgram(p.c())
}
Example #6
0
func LinkProgram(
	program uint32) {
	C.glLinkProgram(
		C.GLuint(program))
}
Example #7
0
File: shader.go Project: eaburns/gl
// Link links a program object.
func (p Program) Link() {
	C.glLinkProgram(C.GLuint(p))
}