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author | Jens Arnold <amiconn@rockbox.org> | 2004-10-15 20:30:29 +0000 |
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committer | Jens Arnold <amiconn@rockbox.org> | 2004-10-15 20:30:29 +0000 |
commit | 566eae2e119f3c57b1df0782ddcc29fccedbf816 (patch) | |
tree | fc8cced8cd199734b2185a20efdfd2ebbcce41bb /firmware/drivers/lcd-recorder.c | |
parent | 672305f0a1fe8e423904f95d5cb22aea68ff4c62 (diff) | |
download | rockbox-566eae2e119f3c57b1df0782ddcc29fccedbf816.tar.gz rockbox-566eae2e119f3c57b1df0782ddcc29fccedbf816.zip |
Logarithmic scroll speed setting: speed doubles every 3 steps.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5288 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/drivers/lcd-recorder.c')
-rw-r--r-- | firmware/drivers/lcd-recorder.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/firmware/drivers/lcd-recorder.c b/firmware/drivers/lcd-recorder.c index a711a8fa6d..8f8e9f9332 100644 --- a/firmware/drivers/lcd-recorder.c +++ b/firmware/drivers/lcd-recorder.c | |||
@@ -94,7 +94,7 @@ static volatile int scrolling_lines=0; /* Bitpattern of which lines are scrollin | |||
94 | static void scroll_thread(void); | 94 | static void scroll_thread(void); |
95 | static char scroll_stack[DEFAULT_STACK_SIZE]; | 95 | static char scroll_stack[DEFAULT_STACK_SIZE]; |
96 | static const char scroll_name[] = "scroll"; | 96 | static const char scroll_name[] = "scroll"; |
97 | static char scroll_speed = 8; /* updates per second */ | 97 | static char scroll_ticks = 12; /* # of ticks between updates*/ |
98 | static int scroll_delay = HZ/2; /* ticks delay before start */ | 98 | static int scroll_delay = HZ/2; /* ticks delay before start */ |
99 | static char scroll_step = 6; /* pixels per scroll step */ | 99 | static char scroll_step = 6; /* pixels per scroll step */ |
100 | static int bidir_limit = 50; /* percent */ | 100 | static int bidir_limit = 50; /* percent */ |
@@ -856,9 +856,15 @@ void lcd_stop_scroll(void) | |||
856 | scrolling_lines=0; | 856 | scrolling_lines=0; |
857 | } | 857 | } |
858 | 858 | ||
859 | static const char scroll_tick_table[16] = { | ||
860 | /* Hz values: | ||
861 | 1, 1.25, 1.55, 2, 2.5, 3.12, 4, 5, 6.25, 8.33, 10, 12.5, 16.7, 20, 25, 33 */ | ||
862 | 100, 80, 64, 50, 40, 32, 25, 20, 16, 12, 10, 8, 6, 5, 4, 3 | ||
863 | }; | ||
864 | |||
859 | void lcd_scroll_speed(int speed) | 865 | void lcd_scroll_speed(int speed) |
860 | { | 866 | { |
861 | scroll_speed = speed; | 867 | scroll_ticks = scroll_tick_table[speed]; |
862 | } | 868 | } |
863 | 869 | ||
864 | void lcd_scroll_step(int step) | 870 | void lcd_scroll_step(int step) |
@@ -933,7 +939,7 @@ static void scroll_thread(void) | |||
933 | lcd_update_rect(xpos, ypos, LCD_WIDTH - xpos, pf->height); | 939 | lcd_update_rect(xpos, ypos, LCD_WIDTH - xpos, pf->height); |
934 | } | 940 | } |
935 | 941 | ||
936 | sleep(HZ/scroll_speed); | 942 | sleep(scroll_ticks); |
937 | } | 943 | } |
938 | } | 944 | } |
939 | 945 | ||