rototiller/.git - Collection of software-rendered graphics hacks supporting libdrm and SDL2

Age	Commit message (Collapse)	Author
2021-02-14	drm_fb,sdl_fb: staticify all functions	Vito Caputo
	Some omissions, nothing in these is public outside of what's explicitly plumbed out via fb_ops_t.
2020-09-13	sdl_fb: use SDL_CreateRGBSurface() instead	Vito Caputo
	I was using SDL_CreateRGBSurfaceWithFormat() without considering the minimum SDL2 version implications. Switch to SDL_CreateRGBSurface() as there's no relevant difference, so I can lower the minimum SDL2 version in configure.ac.
2019-11-24	fb: add pitch to fb_fragment_t	Vito Caputo
	The put_pixel helpers really needed reworking to properly handle subframe fragments modules like montage will utilize. I had the stride present as it's convenient for a number of modules that maintain a buf pointer as they progress down a row, but the pitch is more applicable to put_pixel for scaling the y coordinate. Now there's both pitch and stride so everyone's happy with what's most convenient for their needs.
2019-11-15	sdl_fb: use setting_desc_check()	Vito Caputo

2019-11-10	settings: s/setting_desc_new/setting_desc_clone/	Vito Caputo
	Slight refactor to make call sites less annoying. Now takes a (setting_desc_t *) instead of the members as discrete parameters, and returns an errno on error so callers can simply propagate error codes out rather than having to get access to errno defines, check for NULL and return -ENOMEM etc. It also makes the call sites self documenting by employing designated initializers in compound literals for the supplied setting_desc_t. This is in prep for runtime-configurable module settings.
2018-02-26	sdl_fb: add fullscreen= and size= settings	Vito Caputo
	fullscreen takes either "on" or "off" size expects WxH arguments, defaults still to 640x480 size is optional when fullscreen=on. Through the setup machinery, when fullscreen has been selected it will not ask for a size - a "fullscreen desktop" mode is presumed. However, thorugh the explicit commandline flags, a mixed mode can be achieved by specifying both "fullscreen=on,size=WxH". This instructs SDL to attempt a video mode switch to the specified size if needed. I've found it to be pretty unreliable on my Xorg/linux system, unless I choose the same video mode as my desktop is already in. Then I get what looks like rendering into the root window or something, it's weird. Hence there's no effort made to expose that in the interactive setup, but it's technically possible and some effort was made to wire it up.
2018-02-26	sdl_fb: jump through SDL_Main() hoops	Vito Caputo
	Since I don't use the SDL event loop, this needs to be done to keep things happy apparently.
2018-02-26	sdl_fb: drain event queue on page flip	Vito Caputo

2018-02-22	fb,settings,drm_fb,sd_fb: const settings_t readers	Vito Caputo
	The fb_ops entrypoints and their descendants are purely readers of the settings, so constify their settings_t instances and the operative functions which only read settings.
2018-02-22	sdl_fb: implement rudimentary sdl fb backend	Vito Caputo
	This uses a simple fixed 640x480 windowed mode (for now). The SDL2 Renderer & Texture API is used for vsync-synchronized presents. There's probably excessive copying going on because the rototiller fb code manages pages and flips but SDL2 doesn't really expose low-level control of such things. This backend is quite useful for development purposes, allowing quick iteration in a windowed environment. Note this is just the backend implementation, it's dormant code but trivially activated.