47 lines
1.0 KiB
Go
47 lines
1.0 KiB
Go
package main
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import (
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rl "github.com/gen2brain/raylib-go/raylib"
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)
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type RaylibBuffer struct {
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Data []rl.Color
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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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return &RaylibBuffer{
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Data: make([]rl.Color, width*height),
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Width: width,
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Height: height,
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}
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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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}
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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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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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