/
video.go
86 lines (60 loc) · 1.49 KB
/
video.go
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package main
import "sdl"
import "gl"
//import "glu"
// import "fmt"
import "sdl/ttf"
func ResizeWindow(w int32, h int32) {
// resizeWindow
gl.MatrixMode(gl.PROJECTION)
gl.Viewport(0, 0, gl.GLsizei(w), gl.GLsizei(h))
gl.LoadIdentity()
// glu.Perspective( 45.0, ratio, 0.1, 100.0)
aspect := gl.GLdouble(w) / gl.GLdouble(h)
zNear := gl.GLdouble(0.1)
zFar := gl.GLdouble(100.0)
gl.Frustum(-NearHeight * aspect,
NearHeight * aspect,
-NearHeight,
NearHeight, zNear, zFar );
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
WinW = int(w)
WinH = int(h)
}
func SetupVideo() {
if sdl.Init(sdl.INIT_VIDEO) < 0 {
panic("Couldn't initialize sdl")
}
w := WinW
h := WinH
var screen = sdl.SetVideoMode(w, h, 32, SDL_FLAGS )
// var screen = sdl.SetVideoMode(w, h, 32, sdl.OPENGLBLIT | sdl.DOUBLEBUF | sdl.HWSURFACE)
// var screen = sdl.SetVideoMode(w, h, 32, sdl.OPENGL)
if screen == nil {
panic("sdl error")
}
if ttf.Init() != 0 {
panic("ttf init error")
}
if (gl.Init() != 0) {
panic("Couldn't init gl")
}
ResizeWindow(screen.W, screen.H)
gl.ClearColor(0, 0, 0, 0)
// gl.ClearColor(1, 1, 1, 0)
gl.ClearDepth(1.0)
gl.DepthFunc(gl.LEQUAL)
gl.Enable(gl.DEPTH_TEST)
gl.ShadeModel(gl.SMOOTH)
gl.Hint( gl.PERSPECTIVE_CORRECTION_HINT, gl.NICEST );
/*
if gl.Init() != 0 {
panic("glew error")
}
*/
// gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT )
// gl.Clear(gl.COLOR_BUFFER_BIT)
// initGL
// gl.Ortho(0, gl.GLdouble(screen.W), gl.GLdouble(screen.H), 0, -1.0, 1.0)
}