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19 commits

Author SHA1 Message Date
Jens Arnold
c1d27d105c Speed up mono bitmap drawing on horizontally packed greyscale targets (greyscale iPods). Average speedup is 80% on PP5002, and 55% on PP502x. * Simplify mono bitmap drawing in the 16 bit driver and the greylib a bit, also giving a slight speedup (3% on PP502x, 1.5% on coldfire). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21163 a1c6a512-1295-4272-9138-f99709370657
 2009-06-01 21:28:03 +00:00
Andrew Mahone
92785b8f2f Use pre-multiplication in scaler to save one multiply per color component on ARM and Coldfire, at the cost of an extra add/shift in the horizontal scaler to reduce values to a workable range. SH-1 retains the same basic math, as 
the use of 16x16->32 hardware multiplication in the earlier scaler stages saves more than removing the 32x32->40 multiply to descale output.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21091 a1c6a512-1295-4272-9138-f99709370657
 2009-05-26 20:00:47 +00:00
Andrew Mahone
91efc16256 Split 8-bit-to-native conversion in bmp.c into a function, add support for plugging unscaled output in BMP and JPEG loaders, use output_row_8_native in JPEG decoder when possible. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20884 a1c6a512-1295-4272-9138-f99709370657
 2009-05-09 07:31:27 +00:00
Jens Arnold
9eeead922a Optimize hline, fillrect and mono bitmap drawing for chunky displays (16 bit colour and greylib). Speeds up text rendering by 20..45% on colour coldfire, by 30..50% on colour ARM, and is noticeable in archos pictureflow. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20242 a1c6a512-1295-4272-9138-f99709370657
 2009-03-08 17:22:17 +00:00
Andrew Mahone
d70902feb8 fix greylib scaler output on sh, output_row_grey was not using SC_MUL macro 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20011 a1c6a512-1295-4272-9138-f99709370657
 2009-02-15 15:54:46 +00:00
Andrew Mahone
23d9812273 loader-initialized global plugin API: 
struct plugin_api *rb is declared in PLUGIN_HEADER, and pointed to by
__header.api

the loader uses this pointer to initialize rb before calling entry_point

entry_point is no longer passed a pointer to the plugin API

all plugins, and pluginlib functions, are modified to refer to the
global rb

pluginlib functions which only served to copy the API pointer are
removed

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19776 a1c6a512-1295-4272-9138-f99709370657
 2009-01-16 10:34:40 +00:00
Jens Arnold
9bf20486a8 Make the greylib text output functions handle unicode. Fixes non-working umlauts etc in greyscale pictureflow. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19607 a1c6a512-1295-4272-9138-f99709370657
 2008-12-28 20:12:12 +00:00
Andrew Mahone
9058620849 Make scaler output truly pluggable, add an 8-bit greyscale output to 
pluginlib for use with greylib, and add source for a test scaled bmp
viewer using greylib.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19593 a1c6a512-1295-4272-9138-f99709370657
 2008-12-26 07:05:13 +00:00
Daniel Stenberg
2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or 
later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
 2008-06-28 18:10:04 +00:00
Jens Arnold
40919d7db2 iAudio M3: Optimised LCD driver, with more/better assembly code. Speedup is ~80% when boosted, ~15% when unboosted. Also implemented grey phase blitting. * Adapted the greyscale library, and the plugins using it. * Fixed a bug in greyscale scroll down for vertically packed pixels. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16809 a1c6a512-1295-4272-9138-f99709370657
 2008-03-25 23:21:36 +00:00
Jens Arnold
1f4bcc86da Revert accidental tree commit. /me needs a smaller enter key... 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16805 a1c6a512-1295-4272-9138-f99709370657
 2008-03-25 19:57:23 +00:00
Jens Arnold
9a7978aeab Cabbiev2 gigabeat background: reduce WPS backdrop filesize by storing it as 24 bit BMP instead of unnecessary 32 bit. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16802 a1c6a512-1295-4272-9138-f99709370657
 2008-03-25 19:43:08 +00:00
Jens Arnold
37d43f49f4 Greyscale library: Assembler optimised update function for SH1 (Archos recorders, Ondios), giving ~50% speedup. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16532 a1c6a512-1295-4272-9138-f99709370657
 2008-03-05 22:14:13 +00:00
Jens Arnold
52e1f81599 Greyscale library: Assembler optimised update for coldfire, ~73% speedup when using IRAM, ~35% speedup without IRAM. Slight optimisation for other targets as well. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16482 a1c6a512-1295-4272-9138-f99709370657
 2008-03-02 17:05:00 +00:00
Jens Arnold
fa7eb56c84 Greyscale library: * Defer application of lcd linearisation + gamma in buffered mode to the actual update. This simplifies the update function (grey_update() and grey_update_rect() now are just calls to grey_ub_gray_bitmap_part()), and makes DRMODE_COMPLEMENT work properly. * Make the simulator version work and behave more similar to the target version. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16080 a1c6a512-1295-4272-9138-f99709370657
 2008-01-13 18:39:09 +00:00
Jens Arnold
a72499a125 Greyscale library: Plugins can now put the management structure in IRAM for higher update speed. Use this in doom, mpegplayer, and zxbox. Made the api pointer part of the struct. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16066 a1c6a512-1295-4272-9138-f99709370657
 2008-01-13 00:11:43 +00:00
Jens Arnold
df5c3e15e8 Greyscale library: * Introduced some extra macros dealing with block size, allowing to write some parts with less #ifdefing. * Optimised grey_update_rect() for horizontally packed LCDs, and unbuffered scrolling. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16050 a1c6a512-1295-4272-9138-f99709370657
 2008-01-10 22:51:33 +00:00
Jens Arnold
6a56c14e17 Greyscale library: Changed the internal data format once more (separated pixel values and phases), allowing for further optimisation of drawing, scrolling etc. * Optimised grey phase blitting in the core reduces CPU load on all architectures, most significantly on coldfire. Previous version was too slow to keep up at 45MHz, leading to unwanted graininess (update frequency was halved). Also fixed screendump on 2bpp targets with vertical pixel packing. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16043 a1c6a512-1295-4272-9138-f99709370657
 2008-01-09 23:48:26 +00:00
Jens Arnold
feb5b15e9b All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
 2008-01-04 23:42:38 +00:00