| Summary: | Broken 16-bit visuals in X Display Driver | ||
|---|---|---|---|
| Product: | Ghostscript | Reporter: | Alexei Podtelezhnikov <apodtele> |
| Component: | X Display Driver | Assignee: | Chris Liddell (chrisl) <chris.liddell> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | mjg, sphinx.pinastri |
| Priority: | P4 | ||
| Version: | 9.25 | ||
| Hardware: | PC | ||
| OS: | Windows 10 | ||
| Customer: | Word Size: | --- | |
| Attachments: |
Distorted screenshot
Test case for seg fault |
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To reproduce on Linux desktop: Xephyr -screen "1280x1024x16" :1 DISPLAY=:1 ~/ghostpdl/debugbin/gs -dEPSCrop ~/ghostpdl/examples/tiger.eps Other unusual visuals are also broken. Created attachment 23111 [details] Test case for seg fault That fix may have broken some devices, in particular x11cmyk x11gray2 x11gray4 give a seg fault when doing (i= one of those, others work): gs -dBATCH -dNOPAUSE -sDEVICE=$i -sOutputFile=/dev/null dummy.pdf >/dev/null I bisected this to commit 270438bfda60. Should I open a new bug or reopen? |
Created attachment 19985 [details] Distorted screenshot X11 driver appears to be severely broken with 16-bit visuals, see attached screenshot: striped instead of white background, distorted fill color in cropped path. I am using RealVNC to force 16-bit visuals. $ xdpyinfo ... bitmap unit, bit order, padding: 32, LSBFirst, 32 image byte order: LSBFirst number of supported pixmap formats: 6 supported pixmap formats: depth 32, bits_per_pixel 32, scanline_pad 32 depth 24, bits_per_pixel 32, scanline_pad 32 depth 16, bits_per_pixel 16, scanline_pad 32 depth 8, bits_per_pixel 8, scanline_pad 32 depth 4, bits_per_pixel 8, scanline_pad 32 depth 1, bits_per_pixel 1, scanline_pad 32 ... screen #0: dimensions: 1920x1080 pixels (488x274 millimeters) resolution: 100x100 dots per inch depths (6): 16, 32, 24, 8, 4, 1 root window id: 0x3f depth of root window: 16 planes number of colormaps: minimum 1, maximum 1 default colormap: 0x20 default number of colormap cells: 64 preallocated pixels: black 0, white 65535 options: backing-store YES, save-unders YES largest cursor: 1920x1080 current input event mask: 0xfac033 KeyPressMask KeyReleaseMask EnterWindowMask LeaveWindowMask KeymapStateMask ExposureMask StructureNotifyMask SubstructureNotifyMask SubstructureRedirectMask FocusChangeMask PropertyChangeMask ColormapChangeMask number of visuals: 8 default visual id: 0x23 visual: visual id: 0x23 class: TrueColor depth: 16 planes available colormap entries: 64 per subfield red, green, blue masks: 0xf800, 0x7e0, 0x1f significant bits in color specification: 8 bits