devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

Mandelbrot: Don't update the display more often than 50 times per second on colour targets. Significantly increases speed on iPod Video.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15345 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2007-10-28 14:41:21 +00:00
parent fec406c7a2
commit 36cd5f1e4b
1 changed files with 26 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

31
apps/plugins/mandelbrot.c
View file

@ -184,6 +184,7 @@ PLUGIN_HEADER
#define MYLCD_UPDATE() #define MYLCD_UPDATE()
#define MYXLCD(fn) gray_ub_ ## fn #define MYXLCD(fn) gray_ub_ ## fn
#else #else
#define UPDATE_FREQ (HZ/50)
#define MYLCD(fn) rb->lcd_ ## fn #define MYLCD(fn) rb->lcd_ ## fn
#define MYLCD_UPDATE() rb->lcd_update(); #define MYLCD_UPDATE() rb->lcd_update();
#define MYXLCD(fn) xlcd_ ## fn #define MYXLCD(fn) xlcd_ ## fn
@ -439,6 +440,10 @@ void init_mandelbrot_set(void)
void calc_mandelbrot_low_prec(void) void calc_mandelbrot_low_prec(void)
{ {
long start_tick, last_yield; long start_tick, last_yield;
#ifndef USEGSLIB
long next_update = *rb->current_tick;
int last_px = px_min;
#endif
unsigned n_iter; unsigned n_iter;
long a32, b32; long a32, b32;
short x, x2, y, y2, a, b; short x, x2, y, y2, a, b;
@ -482,11 +487,17 @@ void calc_mandelbrot_low_prec(void)
} }
#ifdef USEGSLIB #ifdef USEGSLIB
gray_ub_gray_bitmap_part(imgbuffer, 0, py_min, 1, gray_ub_gray_bitmap_part(imgbuffer, 0, py_min, 1,
p_x, py_min, 1, py_max-py_min); p_x, py_min, 1, py_max - py_min);
#else #else
rb->lcd_bitmap_part(imgbuffer, 0, py_min, 1, rb->lcd_bitmap_part(imgbuffer, 0, py_min, 1,
p_x, py_min, 1, py_max-py_min); p_x, py_min, 1, py_max - py_min);
rb->lcd_update_rect(p_x, py_min, 1, py_max-py_min); if ((p_x == px_max - 1) || TIME_AFTER(*rb->current_tick, next_update))
{
next_update = *rb->current_tick + UPDATE_FREQ;
rb->lcd_update_rect(last_px, py_min, p_x - last_px + 1,
py_max - py_min);
last_px = p_x;
}
#endif #endif
} }
} }
@ -494,6 +505,10 @@ void calc_mandelbrot_low_prec(void)
void calc_mandelbrot_high_prec(void) void calc_mandelbrot_high_prec(void)
{ {
long start_tick, last_yield; long start_tick, last_yield;
#ifndef USEGSLIB
long next_update = *rb->current_tick;
int last_px = px_min;
#endif
unsigned n_iter; unsigned n_iter;
long x, x2, y, y2, a, b; long x, x2, y, y2, a, b;
int p_x, p_y; int p_x, p_y;
@ -535,11 +550,17 @@ void calc_mandelbrot_high_prec(void)
} }
#ifdef USEGSLIB #ifdef USEGSLIB
gray_ub_gray_bitmap_part(imgbuffer, 0, py_min, 1, gray_ub_gray_bitmap_part(imgbuffer, 0, py_min, 1,
p_x, py_min, 1, py_max-py_min); p_x, py_min, 1, py_max - py_min);
#else #else
rb->lcd_bitmap_part(imgbuffer, 0, py_min, 1, rb->lcd_bitmap_part(imgbuffer, 0, py_min, 1,
p_x, py_min, 1, py_max-py_min); p_x, py_min, 1, py_max-py_min);
rb->lcd_update_rect(p_x, py_min, 1, py_max-py_min); if ((p_x == px_max - 1) || TIME_AFTER(*rb->current_tick, next_update))
{
next_update = *rb->current_tick + UPDATE_FREQ;
rb->lcd_update_rect(last_px, py_min, p_x - last_px + 1,
py_max - py_min);
last_px = p_x;
}
#endif #endif
} }
} }