mirror of
https://bitbucket.org/s_l_teichmann/mtsatellite
synced 2024-11-08 03:00:26 +01:00
mtwebmapper: Move BaseTileCreator to common. TODO: Make mtseeder use it, too.
This commit is contained in:
Sascha L. Teichmann
parent
b3ce895294
commit
216f641fa3
|
|
@ -57,9 +57,7 @@ func main() {
|
|||
}
|
||||
redisAddress := fmt.Sprintf("%s:%d", redisHost, redisPort)
|
||||
tu := newTileUpdater(mapDir, redisAddress, colors, workers)
|
||||
if err = tu.doUpdates(); err != nil {
|
||||
log.Fatalf("ERROR: Cannot start tile generation: %s", err)
|
||||
}
|
||||
go tu.doUpdates()
|
||||
router.Path("/update").Methods("POST").Handler(tu)
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -6,48 +6,14 @@ package main
|
|||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"image/color"
|
||||
"log"
|
||||
"net/http"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strconv"
|
||||
"sync"
|
||||
|
||||
"bitbucket.org/s_l_teichmann/mtredisalize/common"
|
||||
)
|
||||
|
||||
const (
|
||||
tileWidth = 18
|
||||
tileHeight = 18
|
||||
yOrderCapacity = 512
|
||||
)
|
||||
|
||||
// To scan the whole height in terms of the y coordinate
|
||||
// the database is queried in height units defined in the tileDepths table.
|
||||
var tileDepths = [...][2]int16{
|
||||
{1024, 1934},
|
||||
{256, 1023},
|
||||
{128, 255},
|
||||
{64, 127},
|
||||
{32, 63},
|
||||
{16, 31},
|
||||
{8, 15},
|
||||
{4, 7},
|
||||
{2, 3},
|
||||
{0, 1},
|
||||
{-1, 0},
|
||||
{-4, -2},
|
||||
{-8, -5},
|
||||
{-16, -9},
|
||||
{-32, -17},
|
||||
{-64, -33},
|
||||
{-128, -65},
|
||||
{-256, -129},
|
||||
{-1024, -257},
|
||||
{-1934, -1025}}
|
||||
|
||||
type tileUpdater struct {
|
||||
changes map[xz]bool
|
||||
mapDir string
|
||||
|
|
@ -100,149 +66,53 @@ func (tu *tileUpdater) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
|
|||
rw.WriteHeader(http.StatusOK)
|
||||
}
|
||||
|
||||
func (tu *tileUpdater) doUpdates() (err error) {
|
||||
func (tu *tileUpdater) doUpdates() {
|
||||
|
||||
jobs := make(chan xz)
|
||||
|
||||
baseDir := filepath.Join(tu.mapDir, "8")
|
||||
|
||||
for i := 0; i < tu.workers; i++ {
|
||||
var client *common.RedisClient
|
||||
if client, err = common.NewRedisClient("tcp", tu.redisAddress); err != nil {
|
||||
return
|
||||
for {
|
||||
var changes map[xz]bool
|
||||
tu.cond.L.Lock()
|
||||
for len(tu.changes) == 0 {
|
||||
tu.cond.Wait()
|
||||
}
|
||||
btc := NewBaseTileCreator(client, tu.colors, baseDir, true)
|
||||
go btc.run(jobs)
|
||||
changes = tu.changes
|
||||
tu.changes = map[xz]bool{}
|
||||
tu.cond.L.Unlock()
|
||||
|
||||
baseDir := filepath.Join(tu.mapDir, "8")
|
||||
|
||||
jobs := make(chan xz)
|
||||
var done sync.WaitGroup
|
||||
|
||||
for i := 0; i < tu.workers; i++ {
|
||||
var client *common.RedisClient
|
||||
var err error
|
||||
if client, err = common.NewRedisClient("tcp", tu.redisAddress); err != nil {
|
||||
log.Printf("WARN: Cannot connect to redis server: %s", err)
|
||||
continue
|
||||
}
|
||||
btc := common.NewBaseTileCreator(client, tu.colors, baseDir, true)
|
||||
done.Add(1)
|
||||
go updateBaseTiles(jobs, btc, &done)
|
||||
}
|
||||
|
||||
for c, _ := range changes {
|
||||
log.Printf("job: %+v", c)
|
||||
jobs <- c
|
||||
}
|
||||
done.Wait()
|
||||
}
|
||||
|
||||
go func() {
|
||||
for {
|
||||
var changes map[xz]bool
|
||||
tu.cond.L.Lock()
|
||||
for len(tu.changes) == 0 {
|
||||
tu.cond.Wait()
|
||||
}
|
||||
changes = tu.changes
|
||||
tu.changes = map[xz]bool{}
|
||||
tu.cond.L.Unlock()
|
||||
|
||||
for c, _ := range changes {
|
||||
log.Printf("job: %+v", c)
|
||||
jobs <- c
|
||||
}
|
||||
}
|
||||
}()
|
||||
return
|
||||
}
|
||||
|
||||
type BaseTileCreator struct {
|
||||
client *common.RedisClient
|
||||
colors *common.Colors
|
||||
renderer *common.Renderer
|
||||
yOrder *common.YOrder
|
||||
baseDir string
|
||||
update bool
|
||||
}
|
||||
|
||||
func NewBaseTileCreator(
|
||||
client *common.RedisClient,
|
||||
colors *common.Colors,
|
||||
baseDir string,
|
||||
update bool) *BaseTileCreator {
|
||||
renderer := common.NewRenderer(tileWidth, tileHeight)
|
||||
return &BaseTileCreator{
|
||||
client: client,
|
||||
colors: colors,
|
||||
renderer: renderer,
|
||||
yOrder: common.NewYOrder(renderer, yOrderCapacity),
|
||||
baseDir: baseDir,
|
||||
update: update}
|
||||
}
|
||||
|
||||
func (btc *BaseTileCreator) run(jobs chan xz) {
|
||||
func updateBaseTiles(jobs chan xz, btc *common.BaseTileCreator, done *sync.WaitGroup) {
|
||||
for job := range jobs {
|
||||
x := job.X*16 + -1936 - 1
|
||||
z := job.Z*16 + -1936 - 1
|
||||
log.Printf("%d/%d %d/%d", x, z, job.X, job.Z)
|
||||
if err := btc.createTile(x, z, int(job.X), int(job.Z)); err != nil {
|
||||
if err := btc.CreateTile(x, z, int(job.X), int(job.Z)); err != nil {
|
||||
log.Printf("WARN: create tile failed: %s", err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (btc *BaseTileCreator) close() error {
|
||||
return btc.client.Close()
|
||||
}
|
||||
|
||||
func (btc *BaseTileCreator) createTile(x, z int16, i, j int) error {
|
||||
btc.renderer.Reset()
|
||||
btc.renderer.SetPos(x, z)
|
||||
btc.yOrder.Reset()
|
||||
|
||||
drawBlock := func(block *common.Block) {
|
||||
if err := btc.yOrder.RenderBlock(block, btc.colors.NameIndex); err != nil {
|
||||
log.Printf("WARN: rendering block failed: %s", err)
|
||||
}
|
||||
}
|
||||
|
||||
var c1, c2 common.Coord
|
||||
|
||||
nareas := make([]common.Area, 0, tileWidth*tileHeight/2)
|
||||
oareas := make([]common.Area, 1, tileWidth*tileHeight/2)
|
||||
|
||||
oareas[0] = common.Area{
|
||||
X1: 0, Z1: 0,
|
||||
X2: int16(tileWidth) - 1, Z2: int16(tileHeight) - 1}
|
||||
|
||||
for _, yRange := range tileDepths {
|
||||
c1.Y = yRange[0]
|
||||
c2.Y = yRange[1]
|
||||
|
||||
nareas = btc.renderer.UncoveredAreas(nareas, oareas)
|
||||
|
||||
if len(nareas) == 0 {
|
||||
break
|
||||
}
|
||||
|
||||
for _, area := range nareas {
|
||||
c1.X = area.X1 + x
|
||||
c1.Z = area.Z1 + z
|
||||
c2.X = area.X2 + x
|
||||
c2.Z = area.Z2 + z
|
||||
query := common.Cuboid{P1: c1, P2: c2}
|
||||
if err := btc.client.QueryCuboid(query, drawBlock); err != nil {
|
||||
return err
|
||||
}
|
||||
if err := btc.yOrder.Drain(btc.colors.NameIndex); err != nil {
|
||||
log.Printf("WARN: rendering block failed: %s", err)
|
||||
}
|
||||
}
|
||||
oareas, nareas = nareas, oareas[0:0]
|
||||
}
|
||||
|
||||
image := btc.renderer.CreateShadedImage(
|
||||
16, 16, (tileWidth-2)*16, (tileHeight-2)*16,
|
||||
btc.colors.Colors, color.RGBA{R: 0xff, G: 0xff, B: 0xff, A: 0xff})
|
||||
|
||||
path := filepath.Join(btc.baseDir, strconv.Itoa(i), fmt.Sprintf("%d.png", j))
|
||||
|
||||
log.Printf("Writing (%d, %d) to file %s", x, z, path)
|
||||
|
||||
if !btc.update {
|
||||
return common.SaveAsPNG(path, image)
|
||||
}
|
||||
|
||||
// Try to make creation of update "atomic" by first writing to tmp file
|
||||
// and rename the tmp file to the original one afterwards.
|
||||
pathTmp := path + "tmp"
|
||||
pathTmpPre := pathTmp
|
||||
tc := 0
|
||||
for _, err := os.Stat(pathTmp); err == nil; _, err = os.Stat(pathTmp) {
|
||||
pathTmp = fmt.Sprintf("%s%d", pathTmpPre, tc)
|
||||
tc++
|
||||
}
|
||||
if err := common.SaveAsPNG(pathTmp, image); err != nil {
|
||||
return err
|
||||
}
|
||||
return os.Rename(pathTmp, path)
|
||||
btc.Close() // TODO: Keep redis connection open to update the pyramid tiles.
|
||||
done.Done()
|
||||
}
|
||||
|
|
|
|||
145
common/basetilecreator.go
Normal file
145
common/basetilecreator.go
Normal file
|
|
@ -0,0 +1,145 @@
|
|||
// Copyright 2014 by Sascha L. Teichmann
|
||||
// Use of this source code is governed by the MIT license
|
||||
// that can be found in the LICENSE file.
|
||||
|
||||
package common
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"image/color"
|
||||
"log"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strconv"
|
||||
)
|
||||
|
||||
const (
|
||||
tileWidth = 18
|
||||
tileHeight = 18
|
||||
yOrderCapacity = 512
|
||||
)
|
||||
|
||||
// To scan the whole height in terms of the y coordinate
|
||||
// the database is queried in height units defined in the tileDepths table.
|
||||
var tileDepths = [...][2]int16{
|
||||
{1024, 1934},
|
||||
{256, 1023},
|
||||
{128, 255},
|
||||
{64, 127},
|
||||
{32, 63},
|
||||
{16, 31},
|
||||
{8, 15},
|
||||
{4, 7},
|
||||
{2, 3},
|
||||
{0, 1},
|
||||
{-1, 0},
|
||||
{-4, -2},
|
||||
{-8, -5},
|
||||
{-16, -9},
|
||||
{-32, -17},
|
||||
{-64, -33},
|
||||
{-128, -65},
|
||||
{-256, -129},
|
||||
{-1024, -257},
|
||||
{-1934, -1025}}
|
||||
|
||||
type BaseTileCreator struct {
|
||||
client *RedisClient
|
||||
colors *Colors
|
||||
renderer *Renderer
|
||||
yOrder *YOrder
|
||||
baseDir string
|
||||
update bool
|
||||
}
|
||||
|
||||
func NewBaseTileCreator(
|
||||
client *RedisClient,
|
||||
colors *Colors,
|
||||
baseDir string,
|
||||
update bool) *BaseTileCreator {
|
||||
renderer := NewRenderer(tileWidth, tileHeight)
|
||||
return &BaseTileCreator{
|
||||
client: client,
|
||||
colors: colors,
|
||||
renderer: renderer,
|
||||
yOrder: NewYOrder(renderer, yOrderCapacity),
|
||||
baseDir: baseDir,
|
||||
update: update}
|
||||
}
|
||||
|
||||
func (btc *BaseTileCreator) Close() error {
|
||||
return btc.client.Close()
|
||||
}
|
||||
|
||||
func (btc *BaseTileCreator) CreateTile(x, z int16, i, j int) error {
|
||||
btc.renderer.Reset()
|
||||
btc.renderer.SetPos(x, z)
|
||||
btc.yOrder.Reset()
|
||||
|
||||
drawBlock := func(block *Block) {
|
||||
if err := btc.yOrder.RenderBlock(block, btc.colors.NameIndex); err != nil {
|
||||
log.Printf("WARN: rendering block failed: %s", err)
|
||||
}
|
||||
}
|
||||
|
||||
var c1, c2 Coord
|
||||
|
||||
nareas := make([]Area, 0, tileWidth*tileHeight/2)
|
||||
oareas := make([]Area, 1, tileWidth*tileHeight/2)
|
||||
|
||||
oareas[0] = Area{
|
||||
X1: 0, Z1: 0,
|
||||
X2: int16(tileWidth) - 1, Z2: int16(tileHeight) - 1}
|
||||
|
||||
for _, yRange := range tileDepths {
|
||||
c1.Y = yRange[0]
|
||||
c2.Y = yRange[1]
|
||||
|
||||
nareas = btc.renderer.UncoveredAreas(nareas, oareas)
|
||||
|
||||
if len(nareas) == 0 {
|
||||
break
|
||||
}
|
||||
|
||||
for _, area := range nareas {
|
||||
c1.X = area.X1 + x
|
||||
c1.Z = area.Z1 + z
|
||||
c2.X = area.X2 + x
|
||||
c2.Z = area.Z2 + z
|
||||
query := Cuboid{P1: c1, P2: c2}
|
||||
if err := btc.client.QueryCuboid(query, drawBlock); err != nil {
|
||||
return err
|
||||
}
|
||||
if err := btc.yOrder.Drain(btc.colors.NameIndex); err != nil {
|
||||
log.Printf("WARN: rendering block failed: %s", err)
|
||||
}
|
||||
}
|
||||
oareas, nareas = nareas, oareas[0:0]
|
||||
}
|
||||
|
||||
image := btc.renderer.CreateShadedImage(
|
||||
16, 16, (tileWidth-2)*16, (tileHeight-2)*16,
|
||||
btc.colors.Colors, color.RGBA{R: 0xff, G: 0xff, B: 0xff, A: 0xff})
|
||||
|
||||
path := filepath.Join(btc.baseDir, strconv.Itoa(i), fmt.Sprintf("%d.png", j))
|
||||
|
||||
log.Printf("Writing (%d, %d) to file %s", x, z, path)
|
||||
|
||||
if !btc.update {
|
||||
return SaveAsPNG(path, image)
|
||||
}
|
||||
|
||||
// Try to make creation of update "atomic" by first writing to tmp file
|
||||
// and rename the tmp file to the original one afterwards.
|
||||
pathTmp := path + "tmp"
|
||||
pathTmpPre := pathTmp
|
||||
tc := 0
|
||||
for _, err := os.Stat(pathTmp); err == nil; _, err = os.Stat(pathTmp) {
|
||||
pathTmp = fmt.Sprintf("%s%d", pathTmpPre, tc)
|
||||
tc++
|
||||
}
|
||||
if err := SaveAsPNG(pathTmp, image); err != nil {
|
||||
return err
|
||||
}
|
||||
return os.Rename(pathTmp, path)
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user