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rockbox/firmware/export/lcd.h
Jens Arnold 3c17330af6 Colour LCD driver: * Bring non-backdrop rendering back up to speed. * Speed up rendering with backdrop. * Restore correct behaviour of lcd_clear_display(). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8549 a1c6a512-1295-4272-9138-f99709370657
2006-02-03 21:11:51 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Alan Korr
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __LCD_H__
#define __LCD_H__
#include <stdbool.h>
#include "cpu.h"
#include "config.h"
#define STYLE_DEFAULT 0
#define STYLE_INVERT 1
#ifdef SIMULATOR
#define lcd_icon(x,y) sim_lcd_icon(x,y)
#ifndef MAX_PATH
#define MAX_PATH 260
#endif
#else
#include "file.h" /* for MAX_PATH; FIXME: Why does this not work for sims? */
#endif
#if LCD_DEPTH <=8
typedef unsigned char fb_data;
#elif LCD_DEPTH <= 16
typedef unsigned short fb_data;
#endif
/* common functions */
extern void lcd_write_command(int byte);
extern void lcd_write_command_ex(int cmd, int data1, int data2);
extern void lcd_write_data(const fb_data* p_bytes, int count);
extern void lcd_init(void);
#ifdef SIMULATOR
/* Define a dummy device specific init for the sims */
#define lcd_init_device()
#else
extern void lcd_init_device(void);
#endif
extern void lcd_backlight(bool on);
extern int lcd_default_contrast(void);
extern void lcd_set_contrast(int val);
extern void lcd_clear_display(void);
extern void lcd_puts(int x, int y, const unsigned char *string);
extern void lcd_puts_style(int x, int y, const unsigned char *string, int style);
extern void lcd_putc(int x, int y, unsigned short ch);
extern void lcd_stop_scroll(void);
extern void lcd_scroll_speed(int speed);
extern void lcd_scroll_delay(int ms);
extern void lcd_puts_scroll(int x, int y, const unsigned char* string);
extern void lcd_puts_scroll_style(int x, int y, const unsigned char* string,
int style);
extern void lcd_icon(int icon, bool enable);
#if defined(SIMULATOR) || defined(HAVE_LCD_BITMAP)
/* performance function */
extern void lcd_blit(const fb_data* data, int x, int by, int width,
int bheight, int stride);
extern void lcd_update(void);
/* update a fraction of the screen */
extern void lcd_update_rect(int x, int y, int width, int height);
#ifdef HAVE_REMOTE_LCD
extern void lcd_remote_update(void);
/* update a fraction of the screen */
extern void lcd_remote_update_rect(int x, int y, int width, int height);
#endif
#else
#define lcd_update()
#define lcd_update_rect(x,y,w,h)
#endif
#ifdef HAVE_LCD_CHARCELLS
/* Icon definitions for lcd_icon() */
enum
{
ICON_BATTERY = 0,
ICON_BATTERY_1,
ICON_BATTERY_2,
ICON_BATTERY_3,
ICON_USB,
ICON_PLAY,
ICON_RECORD,
ICON_PAUSE,
ICON_AUDIO,
ICON_REPEAT,
ICON_1,
ICON_VOLUME,
ICON_VOLUME_1,
ICON_VOLUME_2,
ICON_VOLUME_3,
ICON_VOLUME_4,
ICON_VOLUME_5,
ICON_PARAM
};
extern void lcd_double_height(bool on);
extern void lcd_define_hw_pattern(int which,const char *pattern,int length);
extern void lcd_define_pattern(int which,const char *pattern);
unsigned char lcd_get_locked_pattern(void);
void lcd_unlock_pattern(unsigned char pat);
void lcd_put_cursor(int x, int y, char cursor_char);
void lcd_remove_cursor(void);
extern void lcd_bidir_scroll(int threshold);
#define JUMP_SCROLL_ALWAYS 5
extern void lcd_jump_scroll(int mode); /* 0=off, 1=once, ..., ALWAYS */
extern void lcd_jump_scroll_delay(int ms);
#endif
/* Draw modes */
#define DRMODE_COMPLEMENT 0
#define DRMODE_BG 1
#define DRMODE_FG 2
#define DRMODE_SOLID 3
#define DRMODE_INVERSEVID 4 /* used as bit modifier for basic modes */
/* Low-level drawing function types */
typedef void lcd_pixelfunc_type(int x, int y);
typedef void lcd_blockfunc_type(unsigned char *address, unsigned mask, unsigned bits);
#if LCD_DEPTH >= 8
typedef void lcd_fastpixelfunc_type(fb_data *address);
#endif
#ifdef HAVE_LCD_BITMAP
#ifdef HAVE_LCD_COLOR
#if LCD_DEPTH == 16
#define LCD_MAX_RED 31
#define LCD_MAX_GREEN 63
#define LCD_MAX_BLUE 31
#define _RGBPACK(r, g, b) ( ((((r) * 31 + 127) / 255) << 11) \
|((((g) * 63 + 127) / 255) << 5) \
| (((b) * 31 + 127) / 255))
#if (LCD_PIXELFORMAT == RGB565SWAPPED)
#define LCD_RGBPACK(r, g, b) ( ((_RGBPACK((r), (g), (b)) & 0xff00) >> 8) \
|((_RGBPACK((r), (g), (b)) & 0x00ff) << 8))
#else
#define LCD_RGBPACK(r, g, b) _RGBPACK((r), (g), (b))
#endif
#else
/* other colour depths */
#endif
#define LCD_BLACK LCD_RGBPACK(0, 0, 0)
#define LCD_DARKGRAY LCD_RGBPACK(85, 85, 85)
#define LCD_LIGHTGRAY LCD_RGBPACK(170, 170, 170)
#define LCD_WHITE LCD_RGBPACK(255, 255, 255)
#define LCD_DEFAULT_FG LCD_BLACK
#define LCD_DEFAULT_BG LCD_RGBPACK(182, 198, 229) /* rockbox blue */
#elif LCD_DEPTH > 1 /* greyscale */
#define LCD_MAX_LEVEL ((1 << LCD_DEPTH) - 1)
#define LCD_BRIGHTNESS(y) (((y) * LCD_MAX_LEVEL + 127) / 255)
#define LCD_BLACK LCD_BRIGHTNESS(0)
#define LCD_DARKGRAY LCD_BRIGHTNESS(85)
#define LCD_LIGHTGRAY LCD_BRIGHTNESS(170)
#define LCD_WHITE LCD_BRIGHTNESS(255)
#define LCD_DEFAULT_FG LCD_BLACK
#define LCD_DEFAULT_BG LCD_WHITE
#endif
/* Memory copy of display bitmap */
#if LCD_DEPTH == 1
extern fb_data lcd_framebuffer[LCD_HEIGHT/8][LCD_WIDTH];
#elif LCD_DEPTH == 2
extern fb_data lcd_framebuffer[LCD_HEIGHT/4][LCD_WIDTH];
#elif LCD_DEPTH == 16
extern fb_data lcd_framebuffer[LCD_HEIGHT][LCD_WIDTH];
#endif
#if CONFIG_BACKLIGHT==BL_IRIVER_H300
extern void lcd_enable(bool on);
#endif
/* Bitmap formats */
enum
{
FORMAT_MONO,
FORMAT_NATIVE,
FORMAT_ANY /* For passing to read_bmp_file() */
};
#define FORMAT_TRANSPARENT 0x40000000
#define TRANSPARENT_COLOR LCD_RGBPACK(255,0,255)
struct bitmap {
int width;
int height;
#if LCD_DEPTH > 1
int format;
unsigned char *maskdata;
#endif
unsigned char *data;
};
extern void lcd_set_invert_display(bool yesno);
extern void lcd_set_flip(bool yesno);
extern void lcd_roll(int pixels);
extern void lcd_set_drawmode(int mode);
extern int lcd_get_drawmode(void);
extern void lcd_setmargins(int xmargin, int ymargin);
extern int lcd_getxmargin(void);
extern int lcd_getymargin(void);
extern void lcd_setfont(int font);
extern int lcd_getstringsize(const unsigned char *str, int *w, int *h);
extern void lcd_puts_offset(int x, int y, const unsigned char *str, int offset);
extern void lcd_puts_style_offset(int x, int y, const unsigned char *str,
int style, int offset);
extern void lcd_puts_scroll_offset(int x, int y, const unsigned char *string,
int offset);
extern void lcd_puts_scroll_style_offset(int x, int y, const unsigned char *string,
int style, int offset);
/* low level drawing function pointer arrays */
extern lcd_pixelfunc_type* const lcd_pixelfuncs[8];
extern lcd_blockfunc_type* const lcd_blockfuncs[8];
#if LCD_DEPTH >= 8
extern lcd_fastpixelfunc_type* const * lcd_fastpixelfuncs;
#endif
extern void lcd_drawpixel(int x, int y);
extern void lcd_drawline(int x1, int y1, int x2, int y2);
extern void lcd_hline(int x1, int x2, int y);
extern void lcd_vline(int x, int y1, int y2);
extern void lcd_drawrect(int x, int y, int width, int height);
extern void lcd_fillrect(int x, int y, int width, int height);
extern void lcd_bitmap_part(const fb_data *src, int src_x, int src_y,
int stride, int x, int y, int width, int height);
extern void lcd_bitmap(const fb_data *src, int x, int y, int width,
int height);
extern void lcd_putsxy(int x, int y, const unsigned char *string);
extern void lcd_invertscroll(int x, int y);
extern void lcd_bidir_scroll(int threshold);
extern void lcd_scroll_step(int pixels);
#if LCD_DEPTH > 1
extern void lcd_set_foreground(unsigned foreground);
extern unsigned lcd_get_foreground(void);
extern void lcd_set_background(unsigned background);
extern unsigned lcd_get_background(void);
extern void lcd_set_drawinfo(int mode, unsigned foreground,
unsigned background);
#ifdef HAVE_LCD_COLOR
void lcd_set_backdrop(fb_data* backdrop);
fb_data* lcd_get_backdrop(void);
#endif
extern void lcd_mono_bitmap_part(const unsigned char *src, int src_x, int src_y,
int stride, int x, int y, int width, int height);
extern void lcd_mono_bitmap(const unsigned char *src, int x, int y, int width,
int height);
extern void lcd_bitmap_transparent_part(const fb_data *src,
int src_x, int src_y,
int stride, int x, int y, int width,
int height);
extern void lcd_bitmap_transparent(const fb_data *src, int x, int y,
int width, int height);
#else /* LCD_DEPTH == 1 */
#define lcd_mono_bitmap lcd_bitmap
#define lcd_mono_bitmap_part lcd_bitmap_part
#endif
#endif /* HAVE_LCD_BITMAP */
/* internal usage, but in multiple drivers */
#ifdef HAVE_LCD_BITMAP
#define SCROLL_SPACING 3
struct scrollinfo {
char line[MAX_PATH + LCD_WIDTH/2 + SCROLL_SPACING + 2];
int len; /* length of line in chars */
int width; /* length of line in pixels */
int offset;
int startx;
bool backward; /* scroll presently forward or backward? */
bool bidir;
bool invert; /* invert the scrolled text */
long start_tick;
};
#else /* !HAVE_LCD_BITMAP */
struct scrollinfo {
int mode;
char text[MAX_PATH];
int textlen;
int offset;
int turn_offset;
int startx;
int starty;
long scroll_start_tick;
int direction; /* +1 for right or -1 for left*/
int jump_scroll;
int jump_scroll_steps;
};
#endif
#endif /* __LCD_H__ */
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