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| author | Tomer Shalev <shalev.tomer@gmail.com> | 2010-01-17 15:32:17 +0000 |
|---|---|---|
| committer | Tomer Shalev <shalev.tomer@gmail.com> | 2010-01-17 15:32:17 +0000 |
| commit | 55240a2e8587f09d33a2594d90fde7f17b4a9266 (patch) | |
| tree | e88820e1dca358bd3df5864560aad53b47deb906 /apps/plugins/fractals/fractal_sets.h | |
| parent | 51cb7eb5f27d773db949d3491b544fdf42ff625c (diff) | |
Fractals: Use constants for screen panning
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24258 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/plugins/fractals/fractal_sets.h')
| -rw-r--r-- | apps/plugins/fractals/fractal_sets.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/apps/plugins/fractals/fractal_sets.h b/apps/plugins/fractals/fractal_sets.h index 2d0ff7d930..a41de45c14 100644 --- a/apps/plugins/fractals/fractal_sets.h +++ b/apps/plugins/fractals/fractal_sets.h @@ -24,6 +24,14 @@ #include "lib/grey.h" #include "lib/xlcd.h" +#define DELTA 8 /* Panning moves 1/DELTA of screen */ + +#define LCD_SHIFT_X (LCD_WIDTH / DELTA) +#define LCD_SHIFT_Y (LCD_HEIGHT / DELTA) + +#define X_DELTA(x) (((x) * LCD_WIDTH) / DELTA) +#define Y_DELTA(y) (((y) * LCD_HEIGHT) / DELTA) + struct fractal_rect { int px_min; |