Almost everything in this header is now documented! The remaining gaps are
literal C runtime wrappers like SDL_strdup, and the analyzer macros like
SDL_INOUT_Z_CAP.
This commit does the following:
- add logic in the `WM_MOUSEMOVE` case of the Window to conditionally call `WIN_UpdateClipCursor` upon receiving cursor motion if SDL is expecting the mouse to be clipped in some way (Fixes#7890)
- remove Windows-specific periodic refresh of cursor clipping and its `SDL_HINT_MOUSE_RELATIVE_CLIP_INTERVAL` hint (superceded by the above bullet point)
- streamline the processing logic within `WIN_UpdateClipCursor` for better readability of each branch, and avoid calling the Platform API until it is absolutely necessary.
- move `relative_mouse_center` field from Windows-specific per-window `SDL_WindowData` to the global `SDL_Mouse` struct, and the corresponding hint callbacks to `SDL_mouse.c` instead of `SDL_windowswindow.c`
- Removes SDL_RenderDebugTextV
- Changes SDL_RenderDebugTextF to SDL_RenderDebugTextFormat and tweaks it to
work in a world without SDL_RenderDebugTextV.
- Tweaked rendering position of formatted text in the example program.
It is not uncommon for clients to redundantly set the window size and position, either as a holdover from an SDL 1 port, when this was required, due to any window state change triggering a universal update function that sets all window state, even if unnecessary (e.g. always calling SDL_SetWindowSize(), even if the window is fullscreen), or due to the use of compatability layers. Historically, these clients expect that their behavior won't override the base window state, which is an assumption that the windowing changes in SDL 3 broke by caching size and position changes that can't be applied immediately.
This change drops size and position requests when the window is in the maximized and fullscreen states (fullscreen-desktop windows will be repositioned, but the non-fullscreen floating position will not be overwritten), which is behavior more in line with existing client assumptions, and should ease the porting process, as well as prevent annoying bugs when older software is run via sdl2-compat.
In the process of making these changes, pending window state has been moved to separate variables in the SDL_Window struct, as this fixes bugs regarding fullscreen display selection and centering windows immediately after resize on asynchronous platforms, which had issues due to pending state possibly being overwritten.
