Jens Arnold
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837012be86
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Fix graphical glitches occuring in the greyscale library on H1x0 and M5 at 124MHz. The main loop within lcd_grey_data() needed instruction reordering (interspersing lcd writes with memory accesses) to meed the LCD controller timing. Slight slowdown because of the extra register needed.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16091 a1c6a512-1295-4272-9138-f99709370657
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2008-01-15 00:51:58 +00:00 |
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Jens Arnold
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6a56c14e17
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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
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2008-01-09 23:48:26 +00:00 |
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Jens Arnold
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feb5b15e9b
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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
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2008-01-04 23:42:38 +00:00 |
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Jens Arnold
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b85b6be3aa
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Coldfire targets: enable buffered writes by default. Speeds up all sorts of I/O that writes to ports: LCD update (except the functions using DMA on H300), ATA writes, .... Some timings had to be adjusted for the new configuration.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15129 a1c6a512-1295-4272-9138-f99709370657
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2007-10-15 21:16:50 +00:00 |
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Michael Sevakis
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a32b33bf83
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Forgot to cvs add lcd-as-h100.S.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
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2006-11-08 16:22:30 +00:00 |
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