MTSR/mapserver
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return bytes from renderer

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This commit is contained in:
NatureFreshMilk 2019-01-22 12:53:36 +01:00
parent ed352fed60
commit 607c4fe06d
4 changed files with 88 additions and 48 deletions
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43
initialrenderer/job.go
View File

@ -36,33 +36,39 @@ func Job(ctx *app.App) {
lastcoords = *newlastcoords
//Invalidate zoom 12-1
//Render zoom 12
for _, mb := range mblist {
//zoom 13
tc := coords.GetTileCoordsFromMapBlock(mb.Pos, ctx.Config.Layers)
if tc == nil {
panic("tile not in any layer")
//zoom 12
tc = tc.GetZoomedOutTile()
fields = logrus.Fields{
"X": tc.X,
"Y": tc.Y,
"Zoom": tc.Zoom,
"LayerId": tc.LayerId,
}
logrus.WithFields(fields).Debug("Dispatching tile rendering (z12)")
for tc.Zoom > 1 {
tc = tc.GetZoomedOutTile()
fields = logrus.Fields{
"X": tc.X,
"Y": tc.Y,
"Zoom": tc.Zoom,
"LayerId": tc.LayerId,
}
logrus.WithFields(fields).Trace("Removing tile")
ctx.Objectdb.RemoveTile(tc)
ctx.Objectdb.RemoveTile(tc)
_, err = ctx.Tilerenderer.Render(tc, 2)
if err != nil {
panic(err)
}
}
//Render zoom 12-1
//Render zoom 11-1
for _, mb := range mblist {
//13
tc := coords.GetTileCoordsFromMapBlock(mb.Pos, ctx.Config.Layers)
//12
tc = tc.GetZoomedOutTile()
for tc.Zoom > 1 {
//11-1
tc = tc.GetZoomedOutTile()
fields = logrus.Fields{
@ -71,9 +77,10 @@ func Job(ctx *app.App) {
"Zoom": tc.Zoom,
"LayerId": tc.LayerId,
}
logrus.WithFields(fields).Debug("Dispatching tile rendering")
logrus.WithFields(fields).Debug("Dispatching tile rendering (z11-1)")
_, err = ctx.Tilerenderer.Render(tc)
ctx.Objectdb.RemoveTile(tc)
_, err = ctx.Tilerenderer.Render(tc, 1)
if err != nil {
panic(err)
}

71
tilerenderer/renderer.go
View File

@ -41,7 +41,7 @@ const (
IMG_SIZE = 256
)
func (tr *TileRenderer) Render(tc *coords.TileCoords) ([]byte, error) {
func (tr *TileRenderer) Render(tc *coords.TileCoords, recursionDepth int) ([]byte, error) {
//Check cache
tile, err := tr.tdb.GetTile(tc)
@ -50,8 +50,14 @@ func (tr *TileRenderer) Render(tc *coords.TileCoords) ([]byte, error) {
}
if tile == nil {
if recursionDepth == 0 {
log.WithFields(logrus.Fields{"x": tc.X, "y": tc.Y, "zoom": tc.Zoom}).Debug("Skip image")
return nil, nil
}
//No tile in db
img, err := tr.RenderImage(tc, false)
img, data, err := tr.RenderImage(tc, recursionDepth)
if err != nil {
return nil, err
@ -62,27 +68,24 @@ func (tr *TileRenderer) Render(tc *coords.TileCoords) ([]byte, error) {
return nil, nil
}
buf := new(bytes.Buffer)
png.Encode(buf, img)
return buf.Bytes(), nil
return data, nil
}
return tile.Data, nil
}
func (tr *TileRenderer) RenderImage(tc *coords.TileCoords, cachedOnly bool) (*image.NRGBA, error) {
func (tr *TileRenderer) RenderImage(tc *coords.TileCoords, recursionDepth int) (*image.NRGBA, []byte, error) {
cachedtile, err := tr.tdb.GetTile(tc)
if err != nil {
return nil, err
return nil, nil, err
}
if cachedtile != nil {
reader := bytes.NewReader(cachedtile.Data)
cachedimg, err := png.Decode(reader)
if err != nil {
return nil, err
return nil, nil, err
}
rect := image.Rectangle{
@ -93,12 +96,13 @@ func (tr *TileRenderer) RenderImage(tc *coords.TileCoords, cachedOnly bool) (*im
img := image.NewNRGBA(rect)
draw.Draw(img, rect, cachedimg, image.ZP, draw.Src)
return img, nil
log.WithFields(logrus.Fields{"x": tc.X, "y": tc.Y, "zoom": tc.Zoom}).Debug("Cached image")
return img, cachedtile.Data, nil
}
if cachedOnly {
if recursionDepth == 0 {
log.WithFields(logrus.Fields{"x": tc.X, "y": tc.Y, "zoom": tc.Zoom}).Debug("Skip image")
return nil, nil
return nil, nil, nil
}
log.WithFields(logrus.Fields{"x": tc.X, "y": tc.Y, "zoom": tc.Zoom}).Debug("RenderImage")
@ -112,11 +116,11 @@ func (tr *TileRenderer) RenderImage(tc *coords.TileCoords, cachedOnly bool) (*im
}
if layer == nil {
return nil, errors.New("No layer found")
return nil, nil, errors.New("No layer found")
}
if tc.Zoom > 13 || tc.Zoom < 1 {
return nil, errors.New("Invalid zoom")
return nil, nil, errors.New("Invalid zoom")
}
if tc.Zoom == 13 {
@ -125,14 +129,25 @@ func (tr *TileRenderer) RenderImage(tc *coords.TileCoords, cachedOnly bool) (*im
mbr.Pos1.Y = layer.From
mbr.Pos2.Y = layer.To
return tr.mapblockrenderer.Render(mbr.Pos1, mbr.Pos2)
img, err := tr.mapblockrenderer.Render(mbr.Pos1, mbr.Pos2)
if err != nil {
return nil, nil, err
}
if img == nil {
return nil, nil, nil
}
buf := new(bytes.Buffer)
png.Encode(buf, img)
return img, buf.Bytes(), nil
}
//zoom 1-12
quads := tc.GetZoomedQuadrantsFromTile()
recursiveCachedOnly := tc.Zoom < 12
fields := logrus.Fields{
"UpperLeft": quads.UpperLeft,
"UpperRight": quads.UpperRight,
@ -141,24 +156,28 @@ func (tr *TileRenderer) RenderImage(tc *coords.TileCoords, cachedOnly bool) (*im
}
log.WithFields(fields).Debug("Quad image stats")
upperLeft, err := tr.RenderImage(quads.UpperLeft, recursiveCachedOnly)
upperLeft, _, err := tr.RenderImage(quads.UpperLeft, recursionDepth-1)
if err != nil {
return nil, err
panic(err)
//return nil, err
}
upperRight, err := tr.RenderImage(quads.UpperRight, recursiveCachedOnly)
upperRight, _, err := tr.RenderImage(quads.UpperRight, recursionDepth-1)
if err != nil {
return nil, err
panic(err)
//return nil, err
}
lowerLeft, err := tr.RenderImage(quads.LowerLeft, recursiveCachedOnly)
lowerLeft, _, err := tr.RenderImage(quads.LowerLeft, recursionDepth-1)
if err != nil {
return nil, err
panic(err)
//return nil, err
}
lowerRight, err := tr.RenderImage(quads.LowerRight, recursiveCachedOnly)
lowerRight, _, err := tr.RenderImage(quads.LowerRight, recursionDepth-1)
if err != nil {
return nil, err
panic(err)
//return nil, err
}
img := image.NewNRGBA(
@ -198,5 +217,5 @@ func (tr *TileRenderer) RenderImage(tc *coords.TileCoords, cachedOnly bool) (*im
tile := mapobjectdb.Tile{Pos: tc, Data: buf.Bytes(), Mtime: time.Now().Unix()}
tr.tdb.SetTile(&tile)
return img, nil
return img, buf.Bytes(), nil
}

20
tilerenderer/renderer_test.go
View File

@ -69,9 +69,7 @@ func TestTileRender(t *testing.T) {
}
coord := coords.NewTileCoords(0, 0, 12, 0)
data, err := tr.Render(coord)
data, err := tr.Render(coord, 2)
if err != nil {
panic(err)
}
@ -82,4 +80,20 @@ func TestTileRender(t *testing.T) {
f, _ := os.Create("../output/0_0_12.png")
bytes.NewReader(data).WriteTo(f)
coord1 := coord.GetZoomedOutTile()
data, err = tr.Render(coord1, 3)
if err != nil {
panic(err)
}
if data == nil {
panic("no data")
}
f, _ = os.Create("../output/0_0_13.png")
bytes.NewReader(data).WriteTo(f)
}

2
tileupdate/job.go
View File

@ -53,7 +53,7 @@ func Job(ctx *app.App) {
}
logrus.WithFields(fields).Debug("Dispatching tile rendering (update)")
_, err = ctx.Tilerenderer.Render(tc)
_, err = ctx.Tilerenderer.Render(tc, 2)
if err != nil {
panic(err)
}