/
headless_video.go
214 lines (192 loc) · 5.45 KB
/
headless_video.go
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package nes
import (
"bufio"
"fmt"
"image"
"image/color"
"image/gif"
"image/jpeg"
"log"
"os"
"sync"
)
var HeadlessPalette []color.Color = []color.Color{
color.RGBA{0x66, 0x66, 0x66, 0xff},
color.RGBA{0x00, 0x2A, 0x88, 0xff},
color.RGBA{0x14, 0x12, 0xA7, 0xff},
color.RGBA{0x3B, 0x00, 0xA4, 0xff},
color.RGBA{0x5C, 0x00, 0x7E, 0xff},
color.RGBA{0x6E, 0x00, 0x40, 0xff},
color.RGBA{0x6C, 0x06, 0x00, 0xff},
color.RGBA{0x56, 0x1D, 0x00, 0xff},
color.RGBA{0x33, 0x35, 0x00, 0xff},
color.RGBA{0x0B, 0x48, 0x00, 0xff},
color.RGBA{0x00, 0x52, 0x00, 0xff},
color.RGBA{0x00, 0x4F, 0x08, 0xff},
color.RGBA{0x00, 0x40, 0x4D, 0xff},
color.RGBA{0x00, 0x00, 0x00, 0xff},
color.RGBA{0x00, 0x00, 0x00, 0xff},
color.RGBA{0x00, 0x00, 0x00, 0xff},
color.RGBA{0xAD, 0xAD, 0xAD, 0xff},
color.RGBA{0x15, 0x5F, 0xD9, 0xff},
color.RGBA{0x42, 0x40, 0xFF, 0xff},
color.RGBA{0x75, 0x27, 0xFE, 0xff},
color.RGBA{0xA0, 0x1A, 0xCC, 0xff},
color.RGBA{0xB7, 0x1E, 0x7B, 0xff},
color.RGBA{0xB5, 0x31, 0x20, 0xff},
color.RGBA{0x99, 0x4E, 0x00, 0xff},
color.RGBA{0x6B, 0x6D, 0x00, 0xff},
color.RGBA{0x38, 0x87, 0x00, 0xff},
color.RGBA{0x0C, 0x93, 0x00, 0xff},
color.RGBA{0x00, 0x8F, 0x32, 0xff},
color.RGBA{0x00, 0x7C, 0x8D, 0xff},
color.RGBA{0x00, 0x00, 0x00, 0xff},
color.RGBA{0x00, 0x00, 0x00, 0xff},
color.RGBA{0x00, 0x00, 0x00, 0xff},
color.RGBA{0xFF, 0xFE, 0xFF, 0xff},
color.RGBA{0x64, 0xB0, 0xFF, 0xff},
color.RGBA{0x92, 0x90, 0xFF, 0xff},
color.RGBA{0xC6, 0x76, 0xFF, 0xff},
color.RGBA{0xF3, 0x6A, 0xFF, 0xff},
color.RGBA{0xFE, 0x6E, 0xCC, 0xff},
color.RGBA{0xFE, 0x81, 0x70, 0xff},
color.RGBA{0xEA, 0x9E, 0x22, 0xff},
color.RGBA{0xBC, 0xBE, 0x00, 0xff},
color.RGBA{0x88, 0xD8, 0x00, 0xff},
color.RGBA{0x5C, 0xE4, 0x30, 0xff},
color.RGBA{0x45, 0xE0, 0x82, 0xff},
color.RGBA{0x48, 0xCD, 0xDE, 0xff},
color.RGBA{0x4F, 0x4F, 0x4F, 0xff},
color.RGBA{0x00, 0x00, 0x00, 0xff},
color.RGBA{0x00, 0x00, 0x00, 0xff},
color.RGBA{0xFF, 0xFE, 0xFF, 0xff},
color.RGBA{0xC0, 0xDF, 0xFF, 0xff},
color.RGBA{0xD3, 0xD2, 0xFF, 0xff},
color.RGBA{0xE8, 0xC8, 0xFF, 0xff},
color.RGBA{0xFB, 0xC2, 0xFF, 0xff},
color.RGBA{0xFE, 0xC4, 0xEA, 0xff},
color.RGBA{0xFE, 0xCC, 0xC5, 0xff},
color.RGBA{0xF7, 0xD8, 0xA5, 0xff},
color.RGBA{0xE4, 0xE5, 0x94, 0xff},
color.RGBA{0xCF, 0xEF, 0x96, 0xff},
color.RGBA{0xBD, 0xF4, 0xAB, 0xff},
color.RGBA{0xB3, 0xF3, 0xCC, 0xff},
color.RGBA{0xB5, 0xEB, 0xF2, 0xff},
color.RGBA{0xB8, 0xB8, 0xB8, 0xff},
color.RGBA{0x00, 0x00, 0x00, 0xff},
color.RGBA{0x00, 0x00, 0x00, 0xff},
}
type HeadlessVideo struct {
input chan []uint8
width, height int
palette []color.Color
events chan Event
framePool *sync.Pool
overscan bool
caption string
fps float64
displayCount int
gif *gif.GIF
}
func NewHeadlessVideo(caption string,
events chan Event,
framePool *sync.Pool,
fps float64) (video *HeadlessVideo, err error) {
fmt.Println("init headless video")
runGif := &gif.GIF{
Image: []*image.Paletted{},
Delay: []int{},
LoopCount: 0xfffffff,
}
video = &HeadlessVideo{
input: make(chan []uint8, 128),
events: events,
framePool: framePool,
palette: HeadlessPalette,
overscan: true,
caption: caption,
fps: fps,
displayCount: 0,
gif: runGif,
}
return
}
func (video *HeadlessVideo) Run() {
fmt.Println("running in headless mode")
//iterations := 0
for {
done := make(chan bool)
paletteSrc := image.NewRGBA(image.Rect(0, 0, 64, 2))
for x, c := range HeadlessPalette {
paletteSrc.Set(x, 0, c)
}
img := image.NewRGBA(image.Rect(0, 0, 256, 256))
updateTex := func(colors []uint8) {
for i, c := range colors {
img.Pix[i<<2] = c
}
video.framePool.Put(colors)
}
go func() {
for {
select {
case <-done:
return
case colors := <-video.input:
updateTex(colors)
}
}
}()
}
}
func (video *HeadlessVideo) Events() chan Event {
return video.events
}
func (video *HeadlessVideo) Input() chan []uint8 {
return video.input
}
func (video *HeadlessVideo) SetCaption(caption string) {
video.caption = caption
}
func (video *HeadlessVideo) GetScreenImage(colors []uint8) (frame *image.Paletted) {
frame = image.NewPaletted(image.Rect(0, 0, 256, 240), HeadlessPalette)
x, y := 0, 0
for _, c := range colors {
frame.Set(x, y, video.palette[c])
switch x {
case 255:
x = 0
y++
default:
x++
}
}
return
}
func (video *HeadlessVideo) AddImageToRecording(colors []uint8) {
frame := video.GetScreenImage(colors)
video.gif.Image = append(video.gif.Image, frame)
video.gif.Delay = append(video.gif.Delay, 5)
}
func (video *HeadlessVideo) OutputRunRecording(outputFileName string) {
if video.gif != nil {
fileName := fmt.Sprintf("output/%v.gif", outputFileName)
fmt.Printf("Output recording to %s\n", fileName)
//todo: will want a degree of variance in name of gif, especially given that multiple environments will be at work at once; already did this for jpeg
fo, _ := os.Create(fileName)
w := bufio.NewWriter(fo)
if err := gif.EncodeAll(w, video.gif); err != nil {
log.Printf("Error in outputting gif: %s \n", err)
}
}
}
func (video *HeadlessVideo) OutputScreenImage(colors []uint8) {
frame := video.GetScreenImage(colors)
fileName := fmt.Sprintf("output/img_%v.jpg", video.displayCount)
video.displayCount++
fo, _ := os.Create(fmt.Sprintf(fileName))
w := bufio.NewWriter(fo)
if err := jpeg.Encode(w, frame, &jpeg.Options{Quality: 100}); err != nil {
log.Printf("Error saving screen as jpeg: %s \n", err)
}
}