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15 commits

Author SHA1 Message Date
Jens Arnold
83aded979f H300: (1) Use DMA for LCD updates, with auto-aligned line reads. Speeds up LCD updates by ~ 75% at 11MHz and 45MHz. Only ~ 11% speedup at 124MHz due to (2). (2) Less aggressive LCD transfer timing at 124MHz. With the previous timing, slightly corrupted display contents was reported, and with DMA transfers at least 4 waitstates are needed to make updates work at all. * A table in system-iriver.c shows settings for all integer multiples of the base clock frequency (info for developers, not yet complete). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11418 a1c6a512-1295-4272-9138-f99709370657
 2006-11-02 20:50:50 +00:00
Jens Arnold
9af13c327e H300: * Assembler optimised lcd_yuv_blit(), based on the X5 version. 23..31% speedup in tests depending on video size. * Don't set HORIZ_RAM_ADDR_POS for LCD updates, it's unnecessary. * Started the target tree move for H300 with this. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10724 a1c6a512-1295-4272-9138-f99709370657
 2006-08-23 17:30:51 +00:00
Jens Arnold
c5a309afbd H300: * Implemented lcd_yuv_blit(). Speeds up video playback by about 7%. No bounds check in lcd_yuv_blit() (by convention), implementations for other targets should be adapted. * Fixed off-by-one bug in lcd_update_rect() 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10484 a1c6a512-1295-4272-9138-f99709370657
 2006-08-08 13:44:43 +00:00
Jens Arnold
cb9e316d4d H300: Cut-down LCD init & working display flip. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9078 a1c6a512-1295-4272-9138-f99709370657
 2006-03-17 15:42:06 +00:00
Jens Arnold
06bc627c99 Removed lcd_roll() and lcd_remote_roll() functions. These functions were not really portable. Removed the only plugin that used lcd_roll(): Oscillograph. Oscilloscope offers everything that oscillograph did and more, in a portable way. * Bumped & sorted plugin API. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8995 a1c6a512-1295-4272-9138-f99709370657
 2006-03-11 09:28:49 +00:00
Jens Arnold
f3857abf6b H300: lcd_write_data() in pure asm, essentially the same speed as before, but working correctly for all allowed data lengths. Removed RAM waste by declaring inline functions static. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8575 a1c6a512-1295-4272-9138-f99709370657
 2006-02-05 00:24:08 +00:00
Hristo Kovachev
9cf5270f10 Don't init the lcd twice - once on lcd_init_device and the other one on first call of lcd_enable() (an old, known bug). 
Linus, please check whether lcd_enable(true) is still required for the h300 bootloader (lcd_init() calls lcd_init_device())


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8317 a1c6a512-1295-4272-9138-f99709370657
 2006-01-09 16:11:19 +00:00
Linus Nielsen Feltzing
bd2f678b70 Patch #1392287 by Brandon Low - faster LCD update for H300 with ASM 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8293 a1c6a512-1295-4272-9138-f99709370657
 2005-12-28 22:49:22 +00:00
Linus Nielsen Feltzing
9d67765cae Reverted the H300 LCD DMA patch, since it iterfered with the recording DMA 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8279 a1c6a512-1295-4272-9138-f99709370657
 2005-12-22 09:33:39 +00:00
Linus Nielsen Feltzing
c70eb572c1 H300: Roughly 20% faster LCD updates with DMA 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8271 a1c6a512-1295-4272-9138-f99709370657
 2005-12-21 00:52:02 +00:00
Linus Nielsen Feltzing
67f00224fb patch #1385256 by Hristo Kovachev - Turn off H300 LCD while backlight is off 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8268 a1c6a512-1295-4272-9138-f99709370657
 2005-12-20 23:15:27 +00:00
Linus Nielsen Feltzing
6ddfac0806 Patch #1377879 by Anders Kagerin - faster lcd_update_rect() for h300 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8215 a1c6a512-1295-4272-9138-f99709370657
 2005-12-11 00:30:15 +00:00
Jens Arnold
5236ca9886 Moved some often-used parts of the LCD driver into IRAM. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7921 a1c6a512-1295-4272-9138-f99709370657
 2005-11-17 00:37:16 +00:00
Jens Arnold
3be6cf1574 16bit colour support (H300) for the win32 simulator. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7898 a1c6a512-1295-4272-9138-f99709370657
 2005-11-15 23:37:21 +00:00
Linus Nielsen Feltzing
dbc8c2c14c First version of the H300 LCD driver 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7875 a1c6a512-1295-4272-9138-f99709370657
 2005-11-14 20:41:49 +00:00