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Greyscale library: Plugins can now put the management structure in IRAM for higher update speed. Use this in doom, mpegplayer, and zxbox. Made the api pointer part of the struct.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16066 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2008-01-13 00:11:43 +00:00
parent 43cc03457d
commit a72499a125
15 changed files with 110 additions and 90 deletions
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10
apps/plugins/lib/grey.h
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@ -36,6 +36,12 @@
#define GREY_LIGHTGRAY GREY_BRIGHTNESS(170)
#define GREY_WHITE GREY_BRIGHTNESS(255)
/* Greyscale library management structure declaration. You need one of these
* in every plugin using the library, depending on whether the structure should
* use IRAM or not. */
#define GREY_INFO_STRUCT struct _grey_info _grey_info;
#define GREY_INFO_STRUCT_IRAM struct _grey_info _grey_info IBSS_ATTR;
/* Library initialisation and release */
bool grey_init(struct plugin_api* newrb, unsigned char *gbuf, long gbuf_size,
bool buffered, int width, int height, long *buf_taken);
@ -148,6 +154,7 @@ struct _grey_info
int bheight; /* 4-pixel or 8-pixel units */
#endif
unsigned long flags; /* various flags, see #defines */
struct plugin_api *rb; /* plugin API pointer */
#ifndef SIMULATOR
unsigned char *values; /* start of greyscale pixel values */
unsigned char *phases; /* start of greyscale pixel phases */
@ -162,8 +169,7 @@ struct _grey_info
int curfont; /* current selected font */
};
/* Global variables */
extern struct plugin_api *_grey_rb;
/* Global variable, defined in the plugin */
extern struct _grey_info _grey_info;
#endif /* HAVE_LCD_BITMAP && (LCD_DEPTH < 4) */