openframeworks / openframeworks/openFrameworks
ofSaveFrame() crashes on Linux (master branch)
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Description
I have a minimal program that draws a rectangle. If I try to save the image with ofSaveFrame() inside the draw function, the program crashes. It runs fine if I remove ofSaveFrame().
The exact place where it crashes is in ofPixels.cpp line 1162: memcpy(line.begin(), lineSrc.begin(), stride);
I tried both FULLSCREEN and WINDOW with the same result. glReadBuffer(GL_FRONT) does not help.
Laptop with ArchLinux, Intel 4400 GPU (I believe), QtCreator, clang 3.9.1.
Can I provide any more useful details?
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Research direction
Start by reproducing the crash on Linux with the minimal rectangle program and ofSaveFrame() inside draw. Inspect ofPixels.cpp line 1162 and trace the frame-saving path from ofSaveFrame(); done means saving a frame no longer crashes in both WINDOW and FULLSCREEN modes.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100