func (_ *GlCache) UseProgram(glHandle gl.Uint) {
if Cache.useProgram != glHandle {
Cache.useProgram = glHandle
gl.UseProgram(glHandle)
}
}
func main() {
var err error
var looping = true
defer fmt.Println("EXIT")
if err = glfw.Init(); err != nil {
panic(err)
}
defer glfw.Terminate()
glfw.OpenWindowHint(glfw.FsaaSamples, 0)
if useStrictCoreProfile {
glfw.OpenWindowHint(glfw.OpenGLVersionMajor, 3)
glfw.OpenWindowHint(glfw.OpenGLVersionMinor, 2)
glfw.OpenWindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
}
if err = glfw.OpenWindow(1280, 720, 8, 8, 8, 0, 24, 8, glfw.Windowed); err != nil {
panic(err)
}
defer glfw.CloseWindow()
glfw.Enable(glfw.StickyKeys)
if !gl.Util.Init() {
panic("Failed to initialize at least OpenGL 3.2 or higher.")
}
defer logLastGlError("(post loop)")
gl.ClearColor(0.3, 0.1, 0.0, 1.0)
gl.Enable(gl.DEPTH_TEST)
gl.FrontFace(gl.CCW)
gl.CullFace(gl.BACK)
gl.Disable(gl.CULL_FACE)
if err = compileShaders(); err != nil {
panic(err)
}
setupGeometry()
defer deleteGeometry()
logLastGlError("(pre loop)")
for looping {
gl.UseProgram(shaderProg)
if isFirstLoop {
logLastGlError("gl.UseProgram")
}
gl.Viewport(0, 0, 1280, 720)
if isFirstLoop {
logLastGlError("gl.ViewPort")
}
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
if isFirstLoop {
logLastGlError("gl.Clear")
}
renderGeometry(faceTri)
if isFirstLoop {
logLastGlError("renderGeometry(faceTri)")
}
renderGeometry(faceQuad)
if isFirstLoop {
logLastGlError("renderGeometry(faceQuad)")
}
if (glfw.WindowParam(glfw.Opened) != 1) || (glfw.Key(glfw.KeyEsc) == glfw.KeyPress) {
looping = false
} else {
glfw.SwapBuffers()
}
isFirstLoop = false
}
logLastGlError("post-loop")
}
func main() {
runtime.LockOSThread()
var looping = true
defer fmt.Println("EXIT")
// if err = glfw.Init(); err != nil {
// panic(err)
// }
if !glfw.Init() {
panic("glfw.Init() failed!")
}
defer glfw.Terminate()
// glfw.OpenWindowHint(glfw.FsaaSamples, 0)
glfw.WindowHint(glfw.Samples, 0)
if useStrictCoreProfile {
// glfw.OpenWindowHint(glfw.OpenGLVersionMajor, 3)
// glfw.OpenWindowHint(glfw.OpenGLVersionMinor, 2)
// glfw.OpenWindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
glfw.WindowHint(glfw.ContextVersionMajor, 3)
glfw.WindowHint(glfw.ContextVersionMinor, 2)
glfw.WindowHint(glfw.OpenglProfile, glfw.OpenglCoreProfile)
}
// if err = glfw.OpenWindow(1280, 720, 8, 8, 8, 0, 24, 8, glfw.Windowed); err != nil {
// panic(err)
// }
// defer glfw.CloseWindow()
glfw.WindowHint(glfw.RedBits, 8)
glfw.WindowHint(glfw.BlueBits, 8)
glfw.WindowHint(glfw.GreenBits, 8)
glfw.WindowHint(glfw.AlphaBits, 0)
glfw.WindowHint(glfw.DepthBits, 24)
glfw.WindowHint(glfw.StencilBits, 8)
win, err := glfw.CreateWindow(1280, 720, "Test", nil, nil)
if err != nil {
panic(err)
}
defer win.Destroy()
win.MakeContextCurrent()
// glfw.Enable(glfw.StickyKeys)
win.SetInputMode(glfw.StickyKeys, glfw.True)
if !gl.Util.Init() {
panic("Failed to initialize at least OpenGL 3.2 or higher.")
}
defer logLastGlError("(post loop)")
gl.ClearColor(0.3, 0.1, 0.0, 1.0)
gl.Enable(gl.DEPTH_TEST)
gl.FrontFace(gl.CCW)
gl.CullFace(gl.BACK)
gl.Disable(gl.CULL_FACE)
if err = compileShaders(); err != nil {
panic(err)
}
setupGeometry()
defer deleteGeometry()
logLastGlError("(pre loop)")
for looping {
gl.UseProgram(shaderProg)
if isFirstLoop {
logLastGlError("gl.UseProgram")
}
gl.Viewport(0, 0, 1280, 720)
if isFirstLoop {
logLastGlError("gl.ViewPort")
}
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
if isFirstLoop {
logLastGlError("gl.Clear")
}
renderGeometry(faceTri)
if isFirstLoop {
logLastGlError("renderGeometry(faceTri)")
}
renderGeometry(faceQuad)
if isFirstLoop {
logLastGlError("renderGeometry(faceQuad)")
}
// if (glfw.WindowParam(glfw.Opened) != 1) || (glfw.Key(glfw.KeyEsc) == glfw.KeyPress) {
if win.ShouldClose() || win.GetKey(glfw.KeyEscape) == glfw.Press {
looping = false
} else {
// glfw.SwapBuffers()
win.SwapBuffers()
glfw.PollEvents()
}
isFirstLoop = false
}
logLastGlError("post-loop")
}