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| author | Linus Nielsen Feltzing <linus@haxx.se> | 2005-12-11 00:30:15 +0000 |
|---|---|---|
| committer | Linus Nielsen Feltzing <linus@haxx.se> | 2005-12-11 00:30:15 +0000 |
| commit | 6ddfac0806a15a8771725ec4fdc39247f36949ff (patch) | |
| tree | 02647b38dacbd1394596ce69b66424f9fe1fa060 /firmware/drivers | |
| parent | 27cd6ca15243593085341bb4f3c2a4c864d89214 (diff) | |
| download | rockbox-6ddfac0806a15a8771725ec4fdc39247f36949ff.tar.gz rockbox-6ddfac0806a15a8771725ec4fdc39247f36949ff.zip | |
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
Diffstat (limited to 'firmware/drivers')
| -rw-r--r-- | firmware/drivers/lcd-h300.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/firmware/drivers/lcd-h300.c b/firmware/drivers/lcd-h300.c index 17fe1f530b..91a86defd4 100644 --- a/firmware/drivers/lcd-h300.c +++ b/firmware/drivers/lcd-h300.c | |||
| @@ -200,11 +200,19 @@ void lcd_update_rect(int x, int y, int width, int height) | |||
| 200 | if(ymax >= LCD_HEIGHT) | 200 | if(ymax >= LCD_HEIGHT) |
| 201 | ymax = LCD_HEIGHT-1; | 201 | ymax = LCD_HEIGHT-1; |
| 202 | 202 | ||
| 203 | /* Copy specified rectangle bitmap to hardware */ | 203 | /* set update window */ |
| 204 | for (; y <= ymax; y++) | 204 | lcd_write_reg(0x44, (ymax<<8) | y); /* horiz ram addr */ |
| 205 | { | 205 | lcd_write_reg(0x45, ((x+width-1)<<8) | x); /* vert ram addr */ |
| 206 | lcd_write_reg(0x21, (x << 8) + y); | 206 | lcd_write_reg(0x21, (x<<8) | y); |
| 207 | lcd_begin_write_gram(); | 207 | lcd_begin_write_gram(); |
| 208 | lcd_write_data ((unsigned short *)&lcd_framebuffer[y][x], width); | 208 | |
| 209 | } | 209 | /* Copy specified rectangle bitmap to hardware */ |
| 210 | for (; y <= ymax; y++) | ||
| 211 | { | ||
| 212 | lcd_write_data ((unsigned short *)&lcd_framebuffer[y][x], width); | ||
| 213 | } | ||
| 214 | |||
| 215 | /* reset update window */ | ||
| 216 | lcd_write_reg(0x44, 0xaf00); /* horiz ram addr: 0 - 175 */ | ||
| 217 | lcd_write_reg(0x45, 0xdb00); /* vert ram addr: 0 - 219 */ | ||
| 210 | } | 218 | } |