rockbox/apps/plugins/lib/gray.h, branch master My Rockbox tree The old grayscale library is now officially dead. 2008-01-13T00:21:45+00:00 Jens Arnold amiconn@rockbox.org 2008-01-13T00:21:45+00:00 c6b5d5531b1e1ea53ee860e939dc9eb638c415a9 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16067 a1c6a512-1295-4272-9138-f99709370657 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16067 a1c6a512-1295-4272-9138-f99709370657
Grayscale lib: Using a 32x32->32 bit multiplication is better on ARM, as 16x16->32 bit isn't a single instruction. Renamed the macro for pointing out that it's not necessarily 16 bit anymore, and to avoid collisions with similar macros in plugins. 2006-11-05T14:40:14+00:00 Jens Arnold amiconn@rockbox.org 2006-11-05T14:40:14+00:00 32c69452d699ce4dbf35e843b2f69507321e1b71 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11436 a1c6a512-1295-4272-9138-f99709370657 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11436 a1c6a512-1295-4272-9138-f99709370657
Grayscale library ported to the grayscale iPods, first version. Added C reference versions of gray_update_rect() for both horizontal and vertical pixel packing. gray_update_rect() and gray_ub_gray_bitmap_part() not yet assembler optimised. Grayscale screendump doesn't work yet. * Fixed button assignments for iPod in grayscale.c 2006-08-07T01:46:42+00:00 Jens Arnold amiconn@rockbox.org 2006-08-07T01:46:42+00:00 c214e7bb0c3e97d22ecedb1c62f193e19a1d4818 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10468 a1c6a512-1295-4272-9138-f99709370657 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10468 a1c6a512-1295-4272-9138-f99709370657
Grayscale library: LCD linearisation and gamma correction. 2006-08-02T00:22:01+00:00 Jens Arnold amiconn@rockbox.org 2006-08-02T00:22:01+00:00 628d20a6109bf65175e7c4b1bd9477cdccfd7437 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10402 a1c6a512-1295-4272-9138-f99709370657 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10402 a1c6a512-1295-4272-9138-f99709370657
Finally - grayscale library support for the simulators. Currently SDL only, win32 and x11 won't link anymore due to missing simulator functions. 2006-02-26T13:37:42+00:00 Jens Arnold amiconn@rockbox.org 2006-02-26T13:37:42+00:00 6a972e02497d3015236189f72931c3d59fa51755 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8845 a1c6a512-1295-4272-9138-f99709370657 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8845 a1c6a512-1295-4272-9138-f99709370657
Grayscale library: colour macros now matching the core LCD drivers. 2006-01-23T22:13:00+00:00 Jens Arnold amiconn@rockbox.org 2006-01-23T22:13:00+00:00 3d2cab614ee82aed28dc368b15b4492597e233f3 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8431 a1c6a512-1295-4272-9138-f99709370657 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8431 a1c6a512-1295-4272-9138-f99709370657
Changed the LCD_COLOR pixel value format to packed RGB (unsigned int). Now all LCDs with depth > 1 use the same datatype. Added macros for easy pixel value definition. 2005-11-16T21:09:23+00:00 Jens Arnold amiconn@rockbox.org 2005-11-16T21:09:23+00:00 5b2cba17aa95ececfdb6a498540de4dfa215e920 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7912 a1c6a512-1295-4272-9138-f99709370657 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7912 a1c6a512-1295-4272-9138-f99709370657
Core: A graphics framework can now register a hook function to extend the core screendump routine. * Grayscale library: (1) Changed the screendump routine into a hook, and implemented it for H1x0. (2) The planar pixel setting routines now use one register less. Fixes build problem with developer builds (frame pointers enabled) on coldfire. 2005-10-01T10:20:55+00:00 Jens Arnold amiconn@rockbox.org 2005-10-01T10:20:55+00:00 05042affc76ec42481bcddba4a3f94a7b77ec98d git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7574 a1c6a512-1295-4272-9138-f99709370657 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7574 a1c6a512-1295-4272-9138-f99709370657
H1x0: Changed lcd_blit() and the grayscale library to use the same internal format as on archos (1bpp). While the slowdown of the ISR is minimal (the intermediate buffers are in IRAM), the planar grayscale buffer takes only half the space for a given depth, and gray_update[_rect]() and unbuffered drawing/scrolling are faster because less data needs to be moved. It should also make porting of video.rock somewhat easier. * Archos recorders, Ondios: Some slight optimisations of the grayscale library. 2005-09-30T20:10:27+00:00 Jens Arnold amiconn@rockbox.org 2005-09-30T20:10:27+00:00 1a40e109333b8206140594fce746f7972a4d0d86 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7571 a1c6a512-1295-4272-9138-f99709370657 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7571 a1c6a512-1295-4272-9138-f99709370657
Grayscale library: (1) Ported to iriver H1x0. Experiments have shown that the intended 49-shade mode isn't possible due to interference between the internal greylevel generation of the LCD and external pixel flipping, so the lib allows 33 shades as on the Archos. The current implementation wastes RAM by not switching the LCD to b&w mode and simply using colours 0 and 3 only. However, this allows to show a partial greyscale overlay and normal 4-shade graphics in parallel. (2) Converted all asm blocks to use symbolic parameters. (3) Properly marked asm input parameters that are changed within the block as in-out and feed them from a temp variable where necessary. (4) Screenshot is not yet working on H1x0. 2005-07-27T19:58:49+00:00 Jens Arnold amiconn@rockbox.org 2005-07-27T19:58:49+00:00 00866dbf86ad9fe3a65c94d2f7b5b0052a7e2738 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7244 a1c6a512-1295-4272-9138-f99709370657 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7244 a1c6a512-1295-4272-9138-f99709370657