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Const policed the grayscale lib & plugin

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4985 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2004-08-03 20:57:06 +00:00
parent 0830339e2f
commit 85890b88df
9 changed files with 27 additions and 25 deletions
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13
apps/plugins/lib/gray_drawgraymap.c
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@ -30,16 +30,16 @@
#include "gray.h"
/* Prototypes */
static void _writearray(unsigned char *address, unsigned char *src, int stride,
unsigned mask);
static void _writearray(unsigned char *address, const unsigned char *src,
int stride, unsigned mask);
/* Write an 8-pixel block, defined by their brightnesses in a graymap.
* Address is the byte in the first bitplane, src is the graymap start address,
* stride is the increment for the graymap to get to the next pixel, mask
* determines which pixels of the destination block are changed. For "0" bits,
* the src address is not incremented! */
static void _writearray(unsigned char *address, unsigned char *src, int stride,
unsigned mask)
static void _writearray(unsigned char *address, const unsigned char *src,
int stride, unsigned mask)
{
unsigned long pat_stack[8];
register unsigned char *end_addr;
@ -217,12 +217,13 @@ asm (
This is the only drawing function NOT using the drawinfo.
*/
void gray_drawgraymap(unsigned char *src, int x, int y, int nx, int ny,
void gray_drawgraymap(const unsigned char *src, int x, int y, int nx, int ny,
int stride)
{
int shift;
unsigned mask_top, mask_bottom;
unsigned char *src_row, *dst, *dst_row;
const unsigned char *src_row;
unsigned char *dst, *dst_row;
if ((unsigned) x >= (unsigned) _graybuf->width
|| (unsigned) y >= (unsigned) _graybuf->height)