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

Age	Commit message (Collapse)	Author
2017-09-15	modules/*: cease dividing stride by 4	Vito Caputo
	Just cast buf to (void *) for the pointer arithmetic, stride is in units of bytes and no assumptions should be made about its value such as divisability by 4.
2017-09-14	fb: s/fb_fragment_divide_single/fb_fragment_slice_single/	Vito Caputo
	Mechanical cosmetic change
2017-09-14	*: use fragment generator	Vito Caputo
	Rather than laying out all fragments in a frame up-front in ray_module_t.prepare_frame(), return a fragment generator (rototiller_fragmenter_t) which produces the numbered fragment as needed. This removes complexity from the serially-executed prepare_frame() and allows the individual fragments to be computed in parallel by the different threads. It also eliminates the need for a fragments array in the rototiller_frame_t, indeed rototiller_frame_t is eliminated altogether.
2017-04-22	julia: utilize context struct for module state	Vito Caputo

2017-04-22	*: add module context machinery	Vito Caputo
	introduces create_context() and destroy_context() methods, and adds a 'void *context' first parameter to the module methods. If a module doesn't supply create_context() then NULL is simply passed around as the context, so trivial modules can continue to only implement render_fragment(). A subsequent commit will update the modules to encapsulate their global state in module-specific contexts.
2017-04-22	julia: enable threaded rendering	Vito Caputo
	Move maintenance of per-frame variables into julia_prepare_frame(), which requires making them static file-scope globals for now. Also make minor adjustments to the code to make less assumptions about the fragment being rendered (like it's x/y coordinates being 0, etc.) A future commit will probably add an initializer function to rototiller_module_t, with an opaque pointer output which will be fed to all the module methods so these globals can be encapsulated and instantiated.
2017-04-22	fb: add frame_{width,height} to fb_fragment_t	Vito Caputo
	Modules need to know the overall dimensions of the frame the fragment they're rendering is part of. Previously it wasn't really necessary since the fragments supplied to the modules had always been the full page, but that's changing. This commit also changes the julia module to use the frame dimensions, others will need updating as well.
2017-04-22	*: /render/render_fragment/ in rototiller_module_t	Vito Caputo
	Adding more context to the name in anticipation of adding a prepare_frame() method to the module struct.
2017-04-21	*: s/renderer/module/g	Vito Caputo
	Make consistent with the source directory structure naming.
2017-02-12	julia: add a morphing Julia set renderer	Vito Caputo
	This is unoptimized, with a palette slapped together in vim, but still pretty neat!