Add reshade::api::display in order to implement HDR display mastering metadata. #336
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…hanges, and HDR mastering metadata support to sk_hdr_png
| /// <summary> | ||
| /// Describes quantities defined precisely as the ratio of two integers, such as refresh rates. | ||
| /// </summary> | ||
| struct rational |
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For consistency with other parts of the API, I'd forego this type. swapchain_desc::fullscreen_refresh_rate e.g. is a floating point value describing the refresh rate, not a rational type (and there is some logic at https://github.com/crosire/reshade/blob/main/source/dxgi/dxgi.cpp#L21 to convert between the two), so it would be strange if the display type suddenly expressed the refresh rate in a different manner.
| return api::color_space::hdr10_hlg; | ||
| default: | ||
| return api::color_space::unknown; | ||
| } |
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You could include d3d12/d3d12_impl_type_convert.hpp and just call return d3d12::convert_color_space(_desc.ColorSpace); here to avoid some code duplication.
| else | ||
| { | ||
| log::message(log::level::warning, "Unable to map runtime %p's swap chain to a containing display output!", this); | ||
| } |
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Can this be decoupled from the effect runtime and instead be put in the swapchain implementation, or maybe just into dxgi/dxgi_swapchain.cpp directly? There can technically be swap chains without an effect runtime initialized for them, in which case the events wouldn't fire.
| /// <remarks> | ||
| /// This device name is not valid as a persistent display identifier for storage in configuration files, it may not refer to the same display device after a reboot. | ||
| /// </remarks> | ||
| virtual const wchar_t* get_device_name() const final; |
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The ReShade API uses UTF-8 strings everywhere else, so ideally these should be converted too. I'm still in favor of a reshade::api::device::get_property alike instead of all the individual getter functions, but maybe that's just me =P
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In order to finish HDR PNG screenshot integration, the capabilities of the display the image is captured on are required.
Thus, I have added
reshade::api::displayas a new api object to encapsulate display devices (its current implementation has a backingIDXGIOutputthat exposes most of its functionality) and an event for AddOns to subscribe to so that they can be notified when display settings change or when the SwapChain's window moves to a different display.Display Change is detected by checking the position of the SwapChain's window each frame for movement, and checking the associated monitor for the HWND on any frame where the window moves.
There is a broader indication of display change, sent to all top-level windows in the form of
WM_DISPLAYCHANGE. It does not indicate which display has changed, but it is a signal that at least one display on the desktop has changed and any cached display data should be invalidated.WM_DISPLAYCHANGEfrom input.cpp since it is the only code in ReShade that is actually processing Window Messages, I hope that is not a problem.