68 lines
1.1 KiB
Go
68 lines
1.1 KiB
Go
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package pixelgl
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import (
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"fmt"
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"runtime"
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"github.com/faiface/mainthread"
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"github.com/go-gl/gl/v3.3-core/gl"
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)
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type Frame struct {
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fb binder
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tex *Texture
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width, height int
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}
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func NewFrame(width, height int, smooth bool) *Frame {
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f := &Frame{
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fb: binder{
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restoreLoc: gl.FRAMEBUFFER_BINDING,
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bindFunc: func(obj uint32) {
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gl.BindFramebuffer(gl.FRAMEBUFFER, obj)
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},
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},
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width: width,
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height: height,
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}
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gl.GenFramebuffers(1, &f.fb.obj)
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fmt.Println(f.fb.obj)
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f.tex = NewTexture(width, height, smooth, make([]uint8, width*height*4))
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f.fb.bind()
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gl.FramebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, f.tex.tex.obj, 0)
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f.fb.restore()
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runtime.SetFinalizer(f, (*Frame).delete)
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return f
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}
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func (f *Frame) delete() {
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mainthread.CallNonBlock(func() {
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gl.DeleteFramebuffers(1, &f.fb.obj)
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})
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}
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func (f *Frame) Width() int {
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return f.width
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}
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func (f *Frame) Height() int {
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return f.height
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}
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func (f *Frame) Begin() {
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f.fb.bind()
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}
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func (f *Frame) End() {
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f.fb.restore()
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}
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func (f *Frame) Texture() *Texture {
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return f.tex
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}
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