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Grayscale library: LCD linearisation and gamma correction.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10402 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2006-08-02 00:22:01 +00:00
parent 8cc73f152b
commit 628d20a610
11 changed files with 251 additions and 48 deletions
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10
apps/plugins/lib/gray.h
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@ -38,7 +38,8 @@
/* Library initialisation and release */
int gray_init(struct plugin_api* newrb, unsigned char *gbuf, long gbuf_size,
bool buffered, int width, int bheight, int depth, long *buf_taken);
bool buffered, int width, int bheight, int depth, int gamma,
long *buf_taken);
void gray_release(void);
/* Special functions */
@ -138,9 +139,12 @@ struct _gray_info
#endif
unsigned char *cur_buffer; /* start of current chunky pixel buffer */
unsigned char *back_buffer;/* start of chunky pixel back buffer */
unsigned char idxtable[256]; /* calculated brightness -> index translation table */
int fg_index; /* current foreground index */
int bg_index; /* current background index */
int fg_brightness; /* current foreground brightness, for returning */
int bg_brightness; /* current background brightness, for returning */
int drawmode; /* current draw mode */
int fg_brightness; /* current foreground brightness */
int bg_brightness; /* current background brightness */
int curfont; /* current selected font */
};