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Speed up LCD driver on Ingenic Jz4740 by doing some sort of partial LCD updates.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20997 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Maurus Cuelenaere 2009-05-20 12:43:23 +00:00
parent 8bcb4a6971
commit 9c2ebdf724
1 changed files with 3 additions and 5 deletions
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8
firmware/target/mips/ingenic_jz47xx/lcd-jz4740.c
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@ -71,13 +71,11 @@ bool lcd_active(void)
/* Update a fraction of the display. */ /* Update a fraction of the display. */
void lcd_update_rect(int x, int y, int width, int height) void lcd_update_rect(int x, int y, int width, int height)
{ {
/* Currently only do full updates. /* Currently only do updates with full LCD width.
* DMA can't handle partial updates and CPU is too slow compared * DMA can't handle full partial updates and CPU is too slow compared
* to full DMA updates */ * to DMA updates */
x = 0; x = 0;
y = 0;
width = LCD_WIDTH; width = LCD_WIDTH;
height = LCD_HEIGHT;
mutex_lock(&lcd_mtx); mutex_lock(&lcd_mtx);