forked from scottferg/Fergulator
/
video.go
59 lines (47 loc) · 962 Bytes
/
video.go
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package main
import (
"fmt"
"github.com/0xe2-0x9a-0x9b/Go-SDL/sdl"
"log"
"time"
)
type Video struct {
screen *sdl.Surface
tick <-chan []int
debug <-chan []int
}
func (v *Video) Init(t <-chan []int, d <-chan []int, n string) {
if sdl.Init(sdl.INIT_EVERYTHING) != 0 {
log.Fatal(sdl.GetError())
}
v.screen = sdl.SetVideoMode(512, 480, 32, 0)
if v.screen == nil {
log.Fatal(sdl.GetError())
}
sdl.WM_SetCaption(fmt.Sprintf("Fergulator - %s", n), "")
v.tick = t
v.debug = d
}
func (v *Video) Render() {
buf := (*[512 * 480]int)(v.screen.Pixels)[:]
for {
select {
case val := <-v.tick:
for i := len(val) - 1; i >= 0; i-- {
y := i >> 8
x := i - (y * 256)
y *= 2
x *= 2
buf[(y*512)+x] = val[i]
buf[((y+1)*512)+x] = val[i]
buf[(y*512)+(x+1)] = val[i]
buf[((y+1)*512)+(x+1)] = val[i]
}
v.screen.Flip()
time.Sleep(4000000 * time.Nanosecond)
}
}
}
func (v *Video) Close() {
sdl.Quit()
}