OGA Video Driver Displays GBA Content at the wrong resolution.
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- Dominant language
- C
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Description
Description
Video Driver oga is displaying GBA content in the mGBA core at the wrong resolution.
Expected behavior
GBA should display at 240 × 160 or an integer of that resolution as it does when using the video driver gl.
Actual behavior
GBA content is being displayed at a resolution of 480 × 300 and does not scale.
Steps to reproduce the bug
- Load a GBA game with the mGBA core using oga driver and check resolution and scaling.
- Load a GBA game with the mGBA core using gl driver and check resolution and scaling.
Version/Commit
You can find this information under Information/System Information
- RetroArch: 1.8.9 (Jul 1 2020)
Environment information
- OS: Void Linux - RetroRoller Distro from @valadaa48
- Compiler: GCC (9.3.0) 64-bit
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the mGBA GBA display with the oga and gl video drivers on RetroArch 1.8.9, comparing the reported scaling and resolution. Trace the oga video-driver entry point and compare it with gl; done means GBA content displays at 240×160 or an integer multiple without the 480×300 scaling issue.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 45/100