devilreef/blockyserver
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

feat: add dithering param and parallel frame rendering for GIF

Browse source 
- Add dithering bool param to GIFRequest (default true)
- Parallelize frame rendering with goroutines
- Conditional Floyd-Steinberg dithering for speed vs quality tradeoff
This commit is contained in:
devilreef 2026-01-23 00:51:38 +06:00
parent 0cbbe647f9
commit fb3c4a0107
4 changed files with 29 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

2
internal/api/handlers.go
View file

@ -103,7 +103,7 @@ func (h *Handlers) HandleGIF(w http.ResponseWriter, r *http.Request) {
return
}
gifBytes, err := render.RenderGIF(result.GLBBytes, result.Atlas, req.Background, req.Frames, req.Width, req.Height, req.Delay)
gifBytes, err := render.RenderGIF(result.GLBBytes, result.Atlas, req.Background, req.Frames, req.Width, req.Height, req.Delay, *req.Dithering)
if err != nil {
writeError(w, http.StatusInternalServerError, "render failed: "+err.Error())
return

3
internal/api/openapi.go
View file

@ -200,7 +200,8 @@ const OpenAPISpec = `{
"frames": {"type": "integer", "default": 36, "description": "Number of frames (36 = 10° per frame)"},
"width": {"type": "integer", "default": 512, "description": "Image width in pixels"},
"height": {"type": "integer", "default": 512, "description": "Image height in pixels"},
"delay": {"type": "integer", "default": 5, "description": "Centiseconds between frames"}
"delay": {"type": "integer", "default": 5, "description": "Centiseconds between frames"},
"dithering": {"type": "boolean", "default": true, "description": "Enable Floyd-Steinberg dithering (disable for faster rendering)"}
}
},
"ErrorResponse": {

5
internal/api/types.go
View file

@ -19,6 +19,7 @@ type GIFRequest struct {
Width int `json:"width"` // default 512
Height int `json:"height"` // default 512
Delay int `json:"delay"` // centiseconds between frames, default 5
Dithering *bool `json:"dithering"` // Floyd-Steinberg dithering, default true
}
// ErrorResponse represents an error returned by the API
@ -56,4 +57,8 @@ func (r *GIFRequest) ApplyDefaults() {
if r.Background == "" {
r.Background = "#FFFFFF"
}
if r.Dithering == nil {
defaultDithering := true
r.Dithering = &defaultDithering
}
}