2 Commits

Author	SHA1	Message	Date
Lephe	3147045196	bopti-cg: add p8, p4, and fix alignment issues on r5g6b5	2019-11-15 13:31:44 +01:00
lephe	2e17b77e56	bopti: first fxcg50 version with r5g6b5 and r5g6b5a ... This commit introduces bopti for fx-CG 50. Currently the only interfaces are the bopti_render_{clip,noclip} functions, and the only supported formats are r5g6b5 and r5g6b5a. The algorithm for r5g6b5 is optimized to perform longword accesses using movua.l, whereas the algorithm for r5g6b5a uses plain word accesses because transparency checks feel more difficult than one more loop iteration. These algorithms are still slow for large surfaces and struggle to keep up 25 FPS in full-screen, so possible improvements with the DMA should definitely be tested before restorting to overclock.	2019-08-04 13:59:35 +02:00