71 lines
1.7 KiB
Go
71 lines
1.7 KiB
Go
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package main
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import (
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rl "github.com/gen2brain/raylib-go/raylib"
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"log"
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)
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type RaylibBuffer struct {
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Data []rl.Color
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Image *rl.Image
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Texture rl.Texture2D
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Width uint
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Height uint
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}
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func NewRaylibBuffer(width uint, height uint) *RaylibBuffer {
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log.Printf("Creating new raylib framebuffer using texture + image")
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//rl.NewTexture2D(1, Width, Height, 0, )
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rlimage := rl.GenImageColor(int(width), int(height), rl.Black)
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rl.ImageFormat(rlimage, rl.UncompressedR8g8b8a8)
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log.Printf("Generated baseline image: %v", rlimage)
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rltexture := rl.LoadTextureFromImage(rlimage)
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log.Printf("Generated texture from image")
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data := rl.LoadImageColors(rlimage)
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log.Printf("Generated pixel data from image")
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return &RaylibBuffer{
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Data: data,
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Image: rlimage,
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Texture: rltexture,
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Width: width,
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Height: height,
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}
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}
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func (fb *RaylibBuffer) Dims() (uint, uint) {
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return fb.Width, fb.Height
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}
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// Sure hope this gets inlined...
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func (fb *RaylibBuffer) Set(x uint, y uint, r byte, g byte, b byte) {
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// if x >= fb.Width || y >= fb.Height {
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// return
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// }
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// fb.Data[x+y*fb.Width].R = r
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// fb.Data[x+y*fb.Width].G = g
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// fb.Data[x+y*fb.Width].B = b
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c := &fb.Data[x+y*fb.Width]
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c.R = r
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c.G = g
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c.B = b
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}
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func (fb *RaylibBuffer) Get(x uint, y uint) (byte, byte, byte) {
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if x >= fb.Width || y >= fb.Height {
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return 0, 0, 0
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}
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return fb.Data[x+y*fb.Width].R,
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fb.Data[x+y*fb.Width].G,
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fb.Data[x+y*fb.Width].B
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}
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func (fb *RaylibBuffer) GetUv(u float32, v float32) (byte, byte, byte) {
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x := uint(float32(fb.Width)*u) & (fb.Width - 1)
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y := uint(float32(fb.Height)*(1-v)) & (fb.Height - 1)
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c := &fb.Data[x+y*fb.Width]
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return c.R, c.G, c.B
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// fb.Data[x+y*fb.Width].R,
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// fb.Data[x+y*fb.Width].G,
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// fb.Data[x+y*fb.Width].B
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}
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