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screenshot: handle transformed displays

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This commit is contained in:
bbedward
2025-12-08 12:45:05 -05:00
parent f47b19274c
commit de62f48f50
8 changed files with 393 additions and 66 deletions
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64
core/cmd/dms/commands_screenshot.go
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@@ -295,7 +295,14 @@ func bufferToRGBThumbnail(buf *screenshot.ShmBuffer, maxSize int, pixelFormat ui
data := buf.Data()
rgb := make([]byte, dstW*dstH*3)
swapRB := pixelFormat == uint32(screenshot.FormatARGB8888) || pixelFormat == uint32(screenshot.FormatXRGB8888) || pixelFormat == 0
var swapRB bool
switch pixelFormat {
case uint32(screenshot.FormatABGR8888), uint32(screenshot.FormatXBGR8888):
swapRB = false
default:
swapRB = true
}
for y := 0; y < dstH; y++ {
srcY := int(float64(y) / scale)
@@ -309,16 +316,17 @@ func bufferToRGBThumbnail(buf *screenshot.ShmBuffer, maxSize int, pixelFormat ui
}
si := srcY*buf.Stride + srcX*4
di := (y*dstW + x) * 3
if si+2 < len(data) {
if swapRB {
rgb[di+0] = data[si+2]
rgb[di+1] = data[si+1]
rgb[di+2] = data[si+0]
} else {
rgb[di+0] = data[si+0]
rgb[di+1] = data[si+1]
rgb[di+2] = data[si+2]
}
if si+3 >= len(data) {
continue
}
if swapRB {
rgb[di+0] = data[si+2]
rgb[di+1] = data[si+1]
rgb[di+2] = data[si+0]
} else {
rgb[di+0] = data[si+0]
rgb[di+1] = data[si+1]
rgb[di+2] = data[si+2]
}
}
}
@@ -370,7 +378,37 @@ func runScreenshotList(cmd *cobra.Command, args []string) {
}
for _, o := range outputs {
fmt.Printf("%s: %dx%d+%d+%d (scale: %d)\n",
o.Name, o.Width, o.Height, o.X, o.Y, o.Scale)
scaleStr := fmt.Sprintf("%.2f", o.FractionalScale)
if o.FractionalScale == float64(int(o.FractionalScale)) {
scaleStr = fmt.Sprintf("%d", int(o.FractionalScale))
}
transformStr := transformName(o.Transform)
fmt.Printf("%s: %dx%d+%d+%d scale=%s transform=%s\n",
o.Name, o.Width, o.Height, o.X, o.Y, scaleStr, transformStr)
}
}
func transformName(t int32) string {
switch t {
case 0:
return "normal"
case 1:
return "90"
case 2:
return "180"
case 3:
return "270"
case 4:
return "flipped"
case 5:
return "flipped-90"
case 6:
return "flipped-180"
case 7:
return "flipped-270"
default:
return fmt.Sprintf("%d", t)
}
}