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Grayscale library ported to the grayscale iPods, first version. Added C reference versions of gray_update_rect() for both horizontal and vertical pixel packing. gray_update_rect() and gray_ub_gray_bitmap_part() not yet assembler optimised. Grayscale screendump doesn't work yet. * Fixed button assignments for iPod in grayscale.c

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10468 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2006-08-07 01:46:42 +00:00
parent 5375e26e51
commit c214e7bb0c
20 changed files with 1360 additions and 232 deletions
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17
apps/plugins/lib/gray_parm.c
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@ -11,7 +11,8 @@
* Parameter handling
*
* This is a generic framework to display up to 33 shades of grey
* on low-depth bitmap LCDs (Archos b&w, Iriver 4-grey) within plugins.
* on low-depth bitmap LCDs (Archos b&w, Iriver 4-grey, iPod 4-grey)
* within plugins.
*
* Copyright (C) 2004-2006 Jens Arnold
*
@ -29,11 +30,19 @@
#include "gray.h"
/* Set position of the top left corner of the greyscale overlay
Note that by is in pixel-block units (8 pixels) */
void gray_set_position(int x, int by)
Note that depending on the target LCD, either x or y gets rounded
to the nearest multiple of 8 */
void gray_set_position(int x, int y)
{
#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
_gray_info.bx = (x + 3) / 8;
x = 8 * _gray_info.bx;
#else
_gray_info.by = (y + 3) / 8;
y = 8 * _gray_info.by;
#endif
_gray_info.x = x;
_gray_info.by = by;
_gray_info.y = y;
if (_gray_info.flags & _GRAY_RUNNING)
{