Stu Leak
68df790d27
Major improvements to UnifiedPlayer: 1. GetFrameImage() now works when paused for responsive UI updates 2. Play() method properly starts FFmpeg process 3. Frame display loop runs continuously for smooth video display 4. Disabled audio temporarily to fix video playback fundamentals 5. Simplified FFmpeg command to focus on video stream only Player now: - Generates video frames correctly - Shows video when paused - Has responsive progress tracking - Starts playback properly Next steps: Re-enable audio playback once video is stable
53 lines
1.5 KiB
Go
53 lines
1.5 KiB
Go
package render
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import (
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"bytes"
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"image"
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"image/color"
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"image/draw"
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_ "image/jpeg" // load image formats for users of the API
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_ "image/png"
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"github.com/go-text/typesetting/font"
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"github.com/go-text/typesetting/shaping"
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scale "golang.org/x/image/draw"
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_ "golang.org/x/image/tiff" // load image formats for users of the API
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)
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func (r *Renderer) drawBitmap(g shaping.Glyph, bitmap font.GlyphBitmap, img draw.Image, x, y float32) error {
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// scaled glyph rect content
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top := y - fixed266ToFloat(g.YBearing)*r.PixScale
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bottom := top - fixed266ToFloat(g.Height)*r.PixScale
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right := x + fixed266ToFloat(g.Width)*r.PixScale
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switch bitmap.Format {
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case font.BlackAndWhite:
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rec := image.Rect(0, 0, bitmap.Width, bitmap.Height)
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sub := image.NewPaletted(rec, color.Palette{color.Transparent, r.Color})
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for i := range sub.Pix {
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sub.Pix[i] = bitAt(bitmap.Data, i)
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}
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rect := image.Rect(int(x), int(top), int(right), int(bottom))
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scale.NearestNeighbor.Scale(img, rect, sub, sub.Bounds(), draw.Over, nil)
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case font.JPG, font.PNG, font.TIFF:
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pix, _, err := image.Decode(bytes.NewReader(bitmap.Data))
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if err != nil {
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return err
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}
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rect := image.Rect(int(x), int(top), int(right), int(bottom))
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scale.BiLinear.Scale(img, rect, pix, pix.Bounds(), draw.Over, nil)
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}
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if bitmap.Outline != nil {
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r.drawOutline(g, *bitmap.Outline, r.filler, r.fillerScale, x, y)
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}
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return nil
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}
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// bitAt returns the bit at the given index in the byte slice.
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func bitAt(b []byte, i int) byte {
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return (b[i/8] >> (7 - i%8)) & 1
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}
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