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http.go
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http.go
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package http
import (
"bytes"
"encoding/base64"
"fmt"
"net/http"
"html/template"
"image/png"
"encoding/hex"
"github.com/nwidger/nintengo/m65go2"
"github.com/nwidger/nintengo/nes"
)
type Page struct {
NES *nes.NES
PTLeft string
PTRight string
CPUMemory string
PPUMemory string
PPUPalette string
OAMMemory string
OAMBufferMemory string
}
type NEServer struct {
*nes.NES
address string
}
func NewNEServer(nes *nes.NES, addr string) *NEServer {
return &NEServer{
NES: nes,
address: addr,
}
}
func (neserv *NEServer) Run() (err error) {
var t *template.Template
http.HandleFunc("/reset", func(w http.ResponseWriter, req *http.Request) {
neserv.NES.Reset()
})
http.HandleFunc("/pause", func(w http.ResponseWriter, req *http.Request) {
w.Write([]byte(neserv.NES.Pause().String()))
})
http.HandleFunc("/run-state", func(w http.ResponseWriter, req *http.Request) {
w.Write([]byte(neserv.NES.RunState().String()))
})
http.HandleFunc("/step-state", func(w http.ResponseWriter, req *http.Request) {
w.Write([]byte(neserv.NES.StepState().String()))
})
http.HandleFunc("/toggle-step-state", func(w http.ResponseWriter, req *http.Request) {
e := &nes.FrameStepEvent{}
e.Process(neserv.NES)
w.Write([]byte(neserv.NES.StepState().String()))
})
http.HandleFunc("/load-state", func(w http.ResponseWriter, req *http.Request) {
neserv.NES.LoadState()
})
http.HandleFunc("/save-state", func(w http.ResponseWriter, req *http.Request) {
neserv.NES.SaveState()
})
http.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
page := Page{
NES: neserv.NES,
}
cpuMemory := make([]byte, m65go2.DEFAULT_MEMORY_SIZE)
for i := uint32(0); i < m65go2.DEFAULT_MEMORY_SIZE; i++ {
cpuMemory[i] = neserv.NES.CPU.Memory.Memory.Fetch(uint16(i))
}
page.CPUMemory = hex.Dump(cpuMemory)
ppuMemory := make([]byte, m65go2.DEFAULT_MEMORY_SIZE)
for i := uint32(0); i < m65go2.DEFAULT_MEMORY_SIZE; i++ {
ppuMemory[i] = neserv.NES.PPU.Memory.Memory.Fetch(uint16(i))
}
page.PPUMemory = hex.Dump(ppuMemory)
ppuPalette := make([]byte, 32)
for i := uint32(0); i < 32; i++ {
ppuPalette[i] = neserv.NES.PPU.Palette[int(i)]
}
page.PPUPalette = hex.Dump(ppuPalette)
oamMemory := make([]byte, 256)
for i := uint32(0); i < 256; i++ {
oamMemory[i] = neserv.NES.PPU.OAM.BasicMemory.Fetch(uint16(i))
}
page.OAMMemory = hex.Dump(oamMemory)
oamBufferMemory := make([]byte, 32)
for i := uint32(0); i < 32; i++ {
oamBufferMemory[i] = neserv.NES.PPU.OAM.Buffer.Fetch(uint16(i))
}
page.OAMBufferMemory = hex.Dump(oamBufferMemory)
left, right := neserv.NES.PPU.GetPatternTables()
buf := new(bytes.Buffer)
png.Encode(buf, left)
page.PTLeft = base64.StdEncoding.EncodeToString(buf.Bytes())
buf = new(bytes.Buffer)
png.Encode(buf, right)
page.PTRight = base64.StdEncoding.EncodeToString(buf.Bytes())
t, err = template.New("index").Parse(index)
if err != nil {
fmt.Printf("*** Error parsing template: %s\n", err)
return
}
err = t.Execute(w, page)
if err != nil {
fmt.Printf("*** Error executing template: %s\n", err)
return
}
})
err = http.ListenAndServe(neserv.address, nil)
return
}