This mirrors the use of video_viewport_get_scaled_integer for
non-integer scaling at various aspect ratios. Two variants are
provided, one with implicit device and desired ratios and one with
explicit ratios.
Also added a flag to video_viewport_get_scaled_integer to indicate the
direction of positive y.
Change GL2, GL3 and Vulkan drivers to behave as fullscreen if context driver
(such as KMS/DRM or KHR) does not support windowed mode at all.
Take it into account also for refresh rate switch.
Adds support for sub-frame shaders to vulkan/glcore/dx10-11-12.
Builds on the concept already present for frame duplication in use for BFI, to present multiple 'sub' frames per real frame to the shaders, so they can run at a higher framerate than the content framerate. Must be enabled via subframe shaders setting under synchronization settings to be active.
Will allow BFI to be implemented inside of the shaders, among any other use for the higher framerate shader authors can devise.
CurrentSubFrame and TotalSubFrames have been available inside the shaders to track what they want to do on an given subframe. TotalSubFrames will always be 1 when the setting is disabled (and when in menu/ff/pause). Framecount will not increment on sub-frames, as it does not for injected bfi frames now. Should not interfere with any existing shaders that do not check for subframes.
commit 793d41c303206b43932ddcefd44a45836def55eb
Author: Ophidon <jrogers2@gmail.com>
Date: Fri Jan 19 23:12:31 2024 -0500
Build Fix 2
Move declarations of iterators.
commit c0e959b3d3cd773a66a17cfe034f08eaa53d525a
Author: Ophidon <jrogers2@gmail.com>
Date: Fri Jan 19 22:57:01 2024 -0500
Build Fix
Help string was 14 characters too long for c89.
commit fc5506c7906bf82d6f88b7b0d7e4764d58d90622
Author: Ophidon <jrogers2@gmail.com>
Date: Fri Jan 19 22:40:45 2024 -0500
BFI Updates
Significant BFI updates.
- Adds BFI to dx10/11/12 in general.
- Updates existing BFI menu option descriptions to be somewhat more clear in how to use correctly.
- Adds Variable Strobe length via new 'Dark Frames' bfi sub-choice. Only valid at 180hz and above, as it must work with whole frames.
- Algorithm to auto select 'decent' Dark Frames choice, for any given selected BFI refresh rate. Will also avoid defaults that can cause Image Retention at any Hz higher than 120. (Impossible to avoid at 120 if you have an affected screen... get an OLED :D ) .
- Some sanity checking on selecting BFI or the other synchronizations options like Swap Interval > 1, that don't play well with BFI.
ever implemented for OpenGL2 driver, lots of code debt, best to
instead just keep improving the overlay system instead which is
already available for most video drivers
