Jens Arnold
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99f9550881
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H300, X5: Optimised lcd_yuv_blit(), using line-pair zig-zag writing to the LCD controller. ~7% speedup on H300, ~5% speedup on X5.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15111 a1c6a512-1295-4272-9138-f99709370657
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2007-10-14 23:05:56 +00:00 |
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Linus Nielsen Feltzing
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e2022a26d0
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Removed executable flag
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11967 a1c6a512-1295-4272-9138-f99709370657
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2007-01-09 23:29:07 +00:00 |
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Jens Arnold
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f8b1da2f7b
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H300, X5: Faster lcd_yuv_blit() using EMAC. Speedup of the function itself at 124MHz: 10.5% on X5, 16.5% on H300. mpegplayer speedup 3..4%
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11429 a1c6a512-1295-4272-9138-f99709370657
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2006-11-04 00:42:18 +00:00 |
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Jens Arnold
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83aded979f
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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
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2006-11-02 20:50:50 +00:00 |
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Jens Arnold
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9af13c327e
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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
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2006-08-23 17:30:51 +00:00 |
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