Re: Adding gamma support to QemuMacDrivers

2025-03-05 Thread BALATON Zoltan
On Wed, 5 Mar 2025, Mark Cave-Ayland wrote: On 03/03/2025 17:52, Hab Gallagher wrote: (added Gerd on CC) That driver is for a VGA device which I think does not support gamma in hardware. QEMU emulates the hardware so if it does not support gamma then there's no place to add it in

Re: Adding gamma support to QemuMacDrivers

2025-03-05 Thread Mark Cave-Ayland
On 03/03/2025 17:52, Hab Gallagher wrote: (added Gerd on CC) That driver is for a VGA device which I think does not support gamma in hardware. QEMU emulates the hardware so if it does not support gamma then there's no place to add it in QEMU. Therefore if you want to emulate gamma

Re: Adding gamma support to QemuMacDrivers

2025-03-03 Thread BALATON Zoltan
On Mon, 3 Mar 2025, Hab Gallagher wrote: That driver is for a VGA device which I think does not support gamma in hardware. QEMU emulates the hardware so if it does not support gamma then there's no place to add it in QEMU. Therefore if you want to emulate gamma on VGA this should be done within t

Re: Adding gamma support to QemuMacDrivers

2025-03-03 Thread Hab Gallagher
> > That driver is for a VGA device which I think does not support gamma in > hardware. QEMU emulates the hardware so if it does not support gamma then > there's no place to add it in QEMU. Therefore if you want to emulate gamma > on VGA this should be done within the guest driver but that may be s

Re: Adding gamma support to QemuMacDrivers

2025-03-03 Thread BALATON Zoltan
On Mon, 3 Mar 2025, Howard Spoelstra wrote: Perhaps this is also of interest: https://github.com/SolraBizna/mac_qfb_driver The nubus declaration rom supports gamma correction. Yes that's also a way. This is for m68k/q800 but a PCI version of that qfb device might also work for PPC Macs. It sho

Re: Adding gamma support to QemuMacDrivers

2025-03-03 Thread Howard Spoelstra
Perhaps this is also of interest: https://github.com/SolraBizna/mac_qfb_driver The nubus declaration rom supports gamma correction. Best, Howard

Re: Adding gamma support to QemuMacDrivers

2025-03-03 Thread BALATON Zoltan
Hello, On Sun, 2 Mar 2025, Hab Gallagher wrote: I have interest in contributing patches to extend qemu's powerpc graphics card emulation to include more comprehensive support for gamma. Some classic mac applications will balk at launch if the graphics card doesn't claim enough support for gamma

Adding gamma support to QemuMacDrivers

2025-03-02 Thread Hab Gallagher
Hi. I have interest in contributing patches to extend qemu's powerpc graphics card emulation to include more comprehensive support for gamma. Some classic mac applications will balk at launch if the graphics card doesn't claim enough support for gamma tricks. Native parity should be possible, allo