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* Finally - grayscale library support for the simulators. Currently SDL only, ↵Jens Arnold2006-02-26
| | | | | | win32 and x11 won't link anymore due to missing simulator functions. 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.Jens Arnold2006-01-23
| | | | 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 ↵Jens Arnold2005-11-16
| | | | | | all LCDs with depth > 1 use the same datatype. Added macros for easy pixel value definition. 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 ↵Jens Arnold2005-10-01
| | | | | | 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. 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 ↵Jens Arnold2005-09-30
| | | | | | 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. 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 ↵Jens Arnold2005-07-27
| | | | | | 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. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7244 a1c6a512-1295-4272-9138-f99709370657
* Complete rework of the grayscale library: (1) Implemented the new rockbox ↵Jens Arnold2005-07-25
| | | | | | graphics api. (2) Added buffered mode, and implemented most drawing functions for buffered mode only. Buffered mode will ease implementation of animated graphics. Some functions are additionally provided as unbuffered versions (drawing grayscale bitmaps, scrolling) since unbuffered mode is better suited for non-animated graphics (JPEG viewer, mandelbrot) and saves some RAM, which is important on Archos. (3) Put all functions in a couple of source files, no more one-function-per-files. This became possible since sectioned compilation for the plugin library and appropriate linking for the pluginswas introduced, otherwise the binaries would be bloated by unused functions. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7241 a1c6a512-1295-4272-9138-f99709370657
* Const policed the grayscale lib & pluginJens Arnold2004-08-03
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4985 a1c6a512-1295-4272-9138-f99709370657
* Added screen dump function to the grayscale libJens Arnold2004-07-06
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4843 a1c6a512-1295-4272-9138-f99709370657
* added comments about default valuesJens Arnold2004-06-25
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4804 a1c6a512-1295-4272-9138-f99709370657
* Split grayscale library into several files to make up a real function ↵Jens Arnold2004-06-23
| | | | | | library. Significantly decreases binary size for plugins using it. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4802 a1c6a512-1295-4272-9138-f99709370657
* Major rework of the grayscale framework:Jens Arnold2004-06-02
| | | | | | | | | | | | | | | * api change - all drawing functions now use draw mode, foreground and background shades set globally by separate functions * There are now 4 draw modes for all drawing functions, no more separate functions for inverse drawing * Significant speedup of 1-bit bitmap (and font) drawing (2..3 times) * Some more speed tweaks * Additional functions for horizontal and vertical lines * Copied describing comments to the header file for easier reference * The safety net against an uninitialized grayscale buffer is gone git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4711 a1c6a512-1295-4272-9138-f99709370657
* Missing function declarationJens Arnold2004-05-20
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4655 a1c6a512-1295-4272-9138-f99709370657
* Font support, several speed and size tweaksJens Arnold2004-05-20
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4654 a1c6a512-1295-4272-9138-f99709370657
* Added return parameter for space taken by grayscale buffer to gray_init_buffer()Jens Arnold2004-05-19
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4648 a1c6a512-1295-4272-9138-f99709370657
* First real library version of the grayscale frameworkJens Arnold2004-05-19
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4641 a1c6a512-1295-4272-9138-f99709370657
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