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rockbox/firmware/export/lcd.h
Solomon Peachy c63b82a895 debug: Report if double-buffered fb is enabled 
(Only applies to hosted targets if FB_DOUBLEBUF is enabled)

Change-Id: I6ef3ead5f6ef12b26e3dd0d07ac582cff98deaed
2025-05-08 12:35:03 -04:00

664 lines
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Alan Korr
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* 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 <stddef.h>
#include "cpu.h"
#include "config.h"
#include "events.h"
/* Frame buffer stride
*
* Stride describes the amount that you need to increment to get to the next
* line. For screens that have the pixels in contiguous horizontal strips
* stride should be equal to the image width.
*
* For example, if the screen pixels are layed out as follows:
*
* width0 width1 width2 widthX-1
* ------ ------ ------ ------------------ --------
* height0 | pixel0 pixel1 pixel2 ----------------> pixelX-1
* height1 | pixelX
*
* then you need to add X pixels to get to the next line. (the next line
* in this case is height1).
*
* Similarly, if the screen has the pixels in contiguous vertical strips
* the stride would be equal to the image height.
*
* For example if the screen pixels are layed out as follows:
*
* width0 width1
* ------ ------
* height0 | pixel0 pixelY
* height1 | pixel1
* height2 | pixel2
* | | |
* \|/ | \|/
* heightY-1 | pixelY-1
*
* then you would need to add Y pixels to get to the next line (the next
* line in this case is from width0 to width1).
*
* The remote might have a different stride than the main screen so the screen
* number needs to be passed to the STRIDE macro so that the appropriate height
* or width can be passed to the lcd_bitmap, or lcd_remote_bitmap calls.
*
* STRIDE_REMOTE and STRIDE_MAIN should never be used when it is not clear whether
* lcd_remote_bitmap calls or lcd_bitmap calls are being made (for example the
* screens api).
*
* Screen should always use the screen_type enum that is at the top of this
* header.
*/
enum screen_type {
SCREEN_MAIN
#ifdef HAVE_REMOTE_LCD
,SCREEN_REMOTE
#endif
};
struct scrollinfo;
#if LCD_STRIDEFORMAT == VERTICAL_STRIDE
#define STRIDE_MAIN(w, h) (h)
#else
#define STRIDE_MAIN(w, h) (w)
#endif
#define STRIDE_REMOTE(w, h) (w)
#define STRIDE(screen, w, h) (screen==SCREEN_MAIN?STRIDE_MAIN((w), \
(h)):STRIDE_REMOTE((w),(h)))
#if LCD_DEPTH <=8
#if (LCD_PIXELFORMAT == VERTICAL_INTERLEAVED) \
|| (LCD_PIXELFORMAT == HORIZONTAL_INTERLEAVED)
typedef unsigned short fb_data;
#define FB_DATA_SZ 2
#else
typedef unsigned char fb_data;
#define FB_DATA_SZ 1
#endif
#elif LCD_DEPTH <= 16
typedef unsigned short fb_data;
#define FB_DATA_SZ 2
#elif LCD_DEPTH <= 24
struct _fb_pixel {
unsigned char b, g, r;
};
typedef struct _fb_pixel fb_data;
#define FB_DATA_SZ 3
#else /* LCD_DEPTH > 24 */
#if (LCD_PIXELFORMAT == XRGB8888)
struct _fb_pixel {
unsigned char b, g, r, x;
};
typedef struct _fb_pixel fb_data;
#else
typedef unsigned long fb_data;
#endif
#define FB_DATA_SZ 4
#endif /* LCD_DEPTH */
#ifdef HAVE_REMOTE_LCD
#if LCD_REMOTE_DEPTH <= 8
#if (LCD_REMOTE_PIXELFORMAT == VERTICAL_INTERLEAVED) \
|| (LCD_REMOTE_PIXELFORMAT == HORIZONTAL_INTERLEAVED)
typedef unsigned short fb_remote_data;
#define FB_RDATA_SZ 2
#else
typedef unsigned char fb_remote_data;
#define FB_RDATA_SZ 1
#endif
#elif LCD_DEPTH <= 16
typedef unsigned short fb_remote_data;
#define FB_RDATA_SZ 2
#else
typedef unsigned long fb_remote_data;
#define FB_RDATA_SZ 4
#endif
#endif
#if defined(HAVE_LCD_MODES)
void lcd_set_mode(int mode);
#define LCD_MODE_RGB565 0x00000001
#define LCD_MODE_YUV 0x00000002
#define LCD_MODE_PAL256 0x00000004
#if HAVE_LCD_MODES & LCD_MODE_PAL256
void lcd_blit_pal256(unsigned char *src, int src_x, int src_y, int x, int y,
int width, int height);
void lcd_pal256_update_pal(fb_data *palette);
#endif
#endif
struct frame_buffer_t {
union
{
void *data;
char *ch_ptr;
fb_data *fb_ptr;
#ifdef HAVE_REMOTE_LCD
fb_remote_data *fb_remote_ptr;
#endif
};
void *(*get_address_fn)(int x, int y);
ptrdiff_t stride;
size_t elems;
};
#define VP_FLAG_ALIGN_RIGHT 0x01
#define VP_FLAG_ALIGN_CENTER 0x02
#define VP_FLAG_ALIGNMENT_MASK \
(VP_FLAG_ALIGN_RIGHT|VP_FLAG_ALIGN_CENTER)
#define VP_IS_RTL(vp) (((vp)->flags & VP_FLAG_ALIGNMENT_MASK) == VP_FLAG_ALIGN_RIGHT)
#define VP_FLAG_OWNER_UPDATE 0x2000 /* block update_vp functions */
#define VP_FLAG_VP_DIRTY 0x4000
#define VP_FLAG_CLEAR_FLAG 0x8000
#define VP_FLAG_VP_SET_CLEAN (VP_FLAG_CLEAR_FLAG | VP_FLAG_VP_DIRTY)
/* flags set by viewport_set_defaults() */
#define VP_DEFAULT_FLAGS (VP_FLAG_VP_DIRTY)
struct viewport {
int x;
int y;
int width;
int height;
int flags;
int font;
int drawmode;
struct frame_buffer_t *buffer;
/* needed for even for mono displays to support greylib */
unsigned fg_pattern;
unsigned bg_pattern;
};
/* common functions */
extern void lcd_write_command(int byte);
extern void lcd_write_command_e(int cmd, int data);
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) INIT_ATTR;
extern void lcd_init_device(void) INIT_ATTR;
extern void lcd_backlight(bool on);
extern int lcd_default_contrast(void);
extern void lcd_set_contrast(int val);
extern int lcd_getwidth(void);
extern int lcd_getheight(void);
extern int lcd_getstringsize(const unsigned char *str, int *w, int *h);
extern struct viewport* lcd_init_viewport(struct viewport* vp);
extern struct viewport* lcd_set_viewport(struct viewport* vp);
extern struct viewport* lcd_set_viewport_ex(struct viewport* vp, int flags);
extern void lcd_update(void);
extern void lcd_update_viewport(void);
extern void lcd_update_viewport_rect(int x, int y, int width, int height);
extern void lcd_clear_viewport(void);
extern void lcd_clear_display(void);
extern void lcd_putsxy(int x, int y, const unsigned char *string);
extern void lcd_putsxyf(int x, int y, const unsigned char *fmt, ...);
extern void lcd_putsxy_style_offset(int x, int y, const unsigned char *str,
int style, int offset);
extern void lcd_puts(int x, int y, const unsigned char *string);
extern void lcd_putsf(int x, int y, const unsigned char *fmt, ...);
extern void lcd_putc(int x, int y, unsigned long ucs);
extern bool lcd_puts_scroll(int x, int y, const unsigned char* string);
extern bool lcd_putsxy_scroll_func(int x, int y, const unsigned char *string,
void (*scroll_func)(struct scrollinfo *),
void *data, int x_offset);
/* performance function */
#if defined(HAVE_LCD_COLOR)
#if MEMORYSIZE > 2
#define LCD_YUV_DITHER 0x1
extern void lcd_yuv_set_options(unsigned options);
extern void lcd_blit_yuv(unsigned char * const src[3],
int src_x, int src_y, int stride,
int x, int y, int width, int height);
#endif /* MEMORYSIZE > 2 */
#else
extern void lcd_blit_mono(const unsigned char *data, int x, int by, int width,
int bheight, int stride);
extern void lcd_blit_grey_phase(unsigned char *values, unsigned char *phases,
int bx, int by, int bwidth, int bheight,
int stride);
#endif
/* 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 /* HAVE_REMOTE_LCD */
/* Bitmap formats */
enum
{
FORMAT_MONO,
FORMAT_NATIVE,
FORMAT_ANY /* For passing to read_bmp_file() */
};
/* 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 */
/* Internal drawmode modifiers. DO NOT use with set_drawmode() */
#define DRMODE_INT_BD 8
#define DRMODE_INT_IMG 16
/* Low-level drawing function types */
typedef void lcd_pixelfunc_type(int x, int y);
typedef void lcd_blockfunc_type(fb_data *address, unsigned mask, unsigned bits);
#if LCD_DEPTH >= 8
typedef void lcd_fastpixelfunc_type(fb_data *address);
#endif
#if defined(HAVE_LCD_COLOR) && defined(LCD_REMOTE_DEPTH) && \
LCD_REMOTE_DEPTH > 1
/* Just return color for screens use */
static inline unsigned lcd_color_to_native(unsigned color)
{ return color; }
#define SCREEN_COLOR_TO_NATIVE(screen, color) (screen)->color_to_native(color)
#else
#define SCREEN_COLOR_TO_NATIVE(screen, color) (color)
#endif
#ifdef HAVE_LCD_COLOR
#if LCD_PIXELFORMAT == RGB565 || LCD_PIXELFORMAT == RGB565SWAPPED
#define LCD_MAX_RED 31
#define LCD_MAX_GREEN 63
#define LCD_MAX_BLUE 31
#define LCD_RED_BITS 5
#define LCD_GREEN_BITS 6
#define LCD_BLUE_BITS 5
/* pack/unpack native RGB values */
#define _RGBPACK_LCD(r, g, b) ( ((r) << 11) | ((g) << 5) | (b) )
#define _RGB_UNPACK_RED_LCD(x) ( (((x) >> 11) ) )
#define _RGB_UNPACK_GREEN_LCD(x) ( (((x) >> 5) & 0x3f) )
#define _RGB_UNPACK_BLUE_LCD(x) ( (((x) ) & 0x1f) )
/* pack/unpack 24-bit RGB values */
#define _RGBPACK(r, g, b) _RGBPACK_LCD((r) >> 3, (g) >> 2, (b) >> 3)
#define _RGB_UNPACK_RED(x) ( (((x) >> 8) & 0xf8) | (((x) >> 13) & 0x07) )
#define _RGB_UNPACK_GREEN(x) ( (((x) >> 3) & 0xfc) | (((x) >> 9) & 0x03) )
#define _RGB_UNPACK_BLUE(x) ( (((x) << 3) & 0xf8) | (((x) >> 2) & 0x07) )
#if (LCD_PIXELFORMAT == RGB565SWAPPED)
/* RGB3553 */
#define _LCD_UNSWAP_COLOR(x) swap16(x)
#define LCD_RGBPACK_LCD(r, g, b) ( (((r) << 3) ) | \
(((g) >> 3) ) | \
(((g) & 0x07) << 13) | \
(((b) << 8) ) )
#define LCD_RGBPACK(r, g, b) ( (((r) >> 3) << 3) | \
(((g) >> 5) ) | \
(((g) & 0x1c) << 11) | \
(((b) >> 3) << 8) )
/* swap color once - not currenly used in static inits */
#define _SWAPUNPACK(x, _unp_) \
({ typeof (x) _x_ = swap16(x); _unp_(_x_); })
#define RGB_UNPACK_RED(x) _SWAPUNPACK((x), _RGB_UNPACK_RED)
#define RGB_UNPACK_GREEN(x) _SWAPUNPACK((x), _RGB_UNPACK_GREEN)
#define RGB_UNPACK_BLUE(x) _SWAPUNPACK((x), _RGB_UNPACK_BLUE)
#define RGB_UNPACK_RED_LCD(x) _SWAPUNPACK((x), _RGB_UNPACK_RED_LCD)
#define RGB_UNPACK_GREEN_LCD(x) _SWAPUNPACK((x), _RGB_UNPACK_GREEN_LCD)
#define RGB_UNPACK_BLUE_LCD(x) _SWAPUNPACK((x), _RGB_UNPACK_BLUE_LCD)
#else /* LCD_PIXELFORMAT == RGB565 */
/* RGB565 */
#define _LCD_UNSWAP_COLOR(x) (x)
#define LCD_RGBPACK(r, g, b) _RGBPACK((r), (g), (b))
#define LCD_RGBPACK_LCD(r, g, b) _RGBPACK_LCD((r), (g), (b))
#define RGB_UNPACK_RED(x) _RGB_UNPACK_RED(x)
#define RGB_UNPACK_GREEN(x) _RGB_UNPACK_GREEN(x)
#define RGB_UNPACK_BLUE(x) _RGB_UNPACK_BLUE(x)
#define RGB_UNPACK_RED_LCD(x) _RGB_UNPACK_RED_LCD(x)
#define RGB_UNPACK_GREEN_LCD(x) _RGB_UNPACK_GREEN_LCD(x)
#define RGB_UNPACK_BLUE_LCD(x) _RGB_UNPACK_BLUE_LCD(x)
#endif /* RGB565* */
#elif (LCD_PIXELFORMAT == RGB888) || (LCD_PIXELFORMAT == XRGB8888)
#define LCD_MAX_RED 255
#define LCD_MAX_GREEN 255
#define LCD_MAX_BLUE 255
#define LCD_RED_BITS 8
#define LCD_GREEN_BITS 8
#define LCD_BLUE_BITS 8
/* pack/unpack native RGB values */
#define _RGBPACK(r, g, b) ( r << 16 | g << 8 | b )
#define _RGB_UNPACK_RED(x) ((x >> 16) & 0xff)
#define _RGB_UNPACK_GREEN(x) ((x >> 8) & 0xff)
#define _RGB_UNPACK_BLUE(x) ((x >> 0) & 0xff)
#define _LCD_UNSWAP_COLOR(x) (x)
#define LCD_RGBPACK(r, g, b) _RGBPACK((r), (g), (b))
#define LCD_RGBPACK_LCD(r, g, b) _RGBPACK((r), (g), (b))
#define RGB_UNPACK_RED(x) _RGB_UNPACK_RED(x)
#define RGB_UNPACK_GREEN(x) _RGB_UNPACK_GREEN(x)
#define RGB_UNPACK_BLUE(x) _RGB_UNPACK_BLUE(x)
#define RGB_UNPACK_RED_LCD(x) _RGB_UNPACK_RED(x)
#define RGB_UNPACK_GREEN_LCD(x) _RGB_UNPACK_GREEN(x)
#define RGB_UNPACK_BLUE_LCD(x) _RGB_UNPACK_BLUE(x)
#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_WHITE
#define LCD_DEFAULT_BG LCD_BLACK
#define LCD_DEFAULT_LS LCD_WHITE
#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 /* HAVE_LCD_COLOR */
/* Framebuffer conversion macros: Convert from and to the native display data
* format (fb_data).
*
* FB_RGBPACK: Convert the three r,g,b values to fb_data. r,g,b are
* assumed to in 8-bit format.
* FB_RGBPACK_LCD Like FB_RGBPACK, except r,g,b shall be in display-native
* bit format (e.g. 5-bit r for RGB565)
* FB_UNPACK_RED Extract the red component of fb_data into 8-bit red value.
* FB_UNPACK_GREEN Like FB_UNPACK_RED, just for the green component.
* FB_UNPACK_BLIE Like FB_UNPACK_RED, just for the green component.
* FB_SCALARPACK Similar to FB_RGBPACK, except that the channels are already
* combined into a single scalar value. Again, 8-bit per channel.
* FB_SCALARPACK_LCD Like FB_SCALARPACK, except the channels shall be in
* display-native format (i.e. the scalar is 16bits on RGB565)
* FB_UNPACK_SCALAR_LCD Converts an fb_data to a scalar value in display-native
* format, so it's the reverse of FB_SCALARPACK_LCD
*/
#if LCD_DEPTH >= 24
static inline fb_data scalar_to_fb(unsigned p)
{
union { fb_data st; unsigned sc; } convert;
convert.sc = p; return convert.st;
}
static inline unsigned fb_to_scalar(fb_data p)
{
union { fb_data st; unsigned sc; } convert;
convert.st = p; return convert.sc;
}
#define FB_RGBPACK(r_, g_, b_) ((fb_data){.r = r_, .g = g_, .b = b_})
#define FB_RGBPACK_LCD(r_, g_, b_) FB_RGBPACK(r_, g_, b_)
#define FB_UNPACK_RED(fb) ((fb).r)
#define FB_UNPACK_GREEN(fb) ((fb).g)
#define FB_UNPACK_BLUE(fb) ((fb).b)
#define FB_SCALARPACK(c) scalar_to_fb(c)
#define FB_SCALARPACK_LCD(c) scalar_to_fb(c)
#define FB_UNPACK_SCALAR_LCD(fb) fb_to_scalar(fb)
#elif defined(HAVE_LCD_COLOR)
#define FB_RGBPACK(r_, g_, b_) LCD_RGBPACK(r_, g_, b_)
#define FB_RGBPACK_LCD(r_, g_, b_) LCD_RGBPACK_LCD(r_, g_, b_)
#define FB_UNPACK_RED(fb) RGB_UNPACK_RED(fb)
#define FB_UNPACK_GREEN(fb) RGB_UNPACK_GREEN(fb)
#define FB_UNPACK_BLUE(fb) RGB_UNPACK_BLUE(fb)
#define FB_SCALARPACK(c) LCD_RGBPACK(RGB_UNPACK_RED(c), RGB_UNPACK_GREEN(c), RGB_UNPACK_BLUE(c))
#define FB_SCALARPACK_LCD(c) (c)
#define FB_UNPACK_SCALAR_LCD(fb) (fb)
#else
#define FB_SCALARPACK(c) (c)
#define FB_SCALARPACK_LCD(c) (c)
#define FB_UNPACK_SCALAR_LCD(fb) (fb)
#endif
/* Frame buffer dimensions */
#if LCD_DEPTH == 1
#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
#define LCD_FBSTRIDE(w, h) ((w+7)/8)
#define LCD_FBWIDTH LCD_FBSTRIDE(LCD_WIDTH, LCD_HEIGHT)
#define LCD_NBELEMS(w, h) ((((h-1)*LCD_FBSTRIDE(w, h)) + w) / sizeof(fb_data))
#else /* LCD_PIXELFORMAT == VERTICAL_PACKING */
#define LCD_FBSTRIDE(w, h) ((h+7)/8)
#define LCD_FBHEIGHT LCD_FBSTRIDE(LCD_WIDTH, LCD_HEIGHT)
#define LCD_NBELEMS(w, h) ((((w-1)*LCD_FBSTRIDE(w, h)) + h) / sizeof(fb_data))
#endif /* LCD_PIXELFORMAT */
#elif LCD_DEPTH == 2
#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
#define LCD_FBSTRIDE(w, h) ((w+3)>>2)
#define LCD_NATIVE_STRIDE(s) LCD_FBSTRIDE(s, s)
#define LCD_FBWIDTH LCD_FBSTRIDE(LCD_WIDTH, LCD_HEIGHT)
#define LCD_NBELEMS(w, h) ((((h-1)*LCD_FBSTRIDE(w, h)) + w) / sizeof(fb_data))
#elif LCD_PIXELFORMAT == VERTICAL_PACKING
#define LCD_FBSTRIDE(w, h) ((h+3)/4)
#define LCD_FBHEIGHT LCD_FBSTRIDE(LCD_WIDTH, LCD_HEIGHT)
#define LCD_NBELEMS(w, h) ((((w-1)*LCD_FBSTRIDE(w, h)) + h) / sizeof(fb_data))
#elif LCD_PIXELFORMAT == VERTICAL_INTERLEAVED
#define LCD_FBSTRIDE(w, h) ((h+7)/8)
#define LCD_FBHEIGHT LCD_FBSTRIDE(LCD_WIDTH, LCD_HEIGHT)
#define LCD_NBELEMS(w, h) ((((w-1)*LCD_FBSTRIDE(w, h)) + h) / sizeof(fb_data))
#endif /* LCD_PIXELFORMAT */
#endif /* LCD_DEPTH */
/* Set defaults if not defined different yet. The defaults apply to both
* dimensions for LCD_DEPTH >= 8 */
#ifndef LCD_FBWIDTH
#define LCD_FBWIDTH LCD_WIDTH
#endif
#ifndef LCD_FBHEIGHT
#define LCD_FBHEIGHT LCD_HEIGHT
#endif
#ifndef LCD_NATIVE_STRIDE
/* 2-bit Horz is the only display that actually defines this */
#define LCD_NATIVE_STRIDE(s) (s)
#endif
#ifndef LCD_NBELEMS
#if LCD_STRIDEFORMAT == VERTICAL_STRIDE
#define LCD_NBELEMS(w, h) (((w-1)*STRIDE_MAIN(w, h)) + h)
#else
#define LCD_NBELEMS(w, h) (((h-1)*STRIDE_MAIN(w, h)) + w)
#endif
#define LCD_FBSTRIDE(w, h) STRIDE_MAIN(w, h)
#endif
#ifndef LCD_STRIDE
#define LCD_STRIDE(w, h) STRIDE_MAIN(w, h)
#endif
extern struct viewport* lcd_current_viewport;
#define FB_CURRENTVP_BUFFER (lcd_current_viewport->buffer)
#define FBADDRBUF(buffer,x,y) ((fb_data*) buffer->get_address_fn(x,y))
#define FBADDR(x,y) (FBADDRBUF(lcd_current_viewport->buffer,x,y))
#define FRAMEBUFFER_SIZE (sizeof(fb_data)*LCD_FBWIDTH*LCD_FBHEIGHT)
/** Port-specific functions. Enable in port config file. **/
#ifdef HAVE_REMOTE_LCD_AS_MAIN
void lcd_on(void);
void lcd_off(void);
void lcd_poweroff(void);
#endif
#ifdef HAVE_LCD_ENABLE
/* Enable/disable the main display. */
extern void lcd_enable(bool on);
#endif /* HAVE_LCD_ENABLE */
#ifdef HAVE_LCD_SLEEP
/* Put the LCD into a power saving state deeper than lcd_enable(false). */
extern void lcd_sleep(void);
#endif /* HAVE_LCD_SLEEP */
#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
/* Register a hook that is called when the lcd is powered and after the
* framebuffer data is synchronized */
/* Sansa Clip has these function in it's lcd driver, since it's the only
* 1-bit display featuring lcd_active, so far */
enum {
LCD_EVENT_ACTIVATION = (EVENT_CLASS_LCD|1),
};
extern bool lcd_active(void);
#endif
#ifdef HAVE_LCD_SHUTDOWN
extern void lcd_shutdown(void);
#endif
#define FORMAT_TRANSPARENT 0x40000000
#define FORMAT_DITHER 0x20000000
#define FORMAT_REMOTE 0x10000000
#define FORMAT_RESIZE 0x08000000
#define FORMAT_KEEP_ASPECT 0x04000000
#define FORMAT_RETURN_SIZE 0x02000000
#define TRANSPARENT_COLOR LCD_RGBPACK(255,0,255)
#define REPLACEWITHFG_COLOR LCD_RGBPACK(0,255,255)
struct bitmap {
int width;
int height;
#if (LCD_DEPTH > 1) || defined(HAVE_REMOTE_LCD) && (LCD_REMOTE_DEPTH > 1)
int format;
unsigned char *maskdata;
#endif
#ifdef HAVE_LCD_COLOR
int alpha_offset; /* byte-offset of alpha channel in data */
#endif
unsigned char *data;
};
extern void lcd_set_invert_display(bool yesno);
#ifdef HAVE_BACKLIGHT_INVERSION
extern void lcd_set_backlight_inversion(bool yesno);
#endif /* HAVE_BACKLIGHT_INVERSION */
extern void lcd_set_flip(bool yesno);
extern void lcd_set_drawmode(int mode);
extern int lcd_get_drawmode(void);
extern void lcd_setfont(int font);
extern int lcd_getfont(void);
/* low level drawing function pointer arrays */
#if LCD_DEPTH >= 8
extern lcd_fastpixelfunc_type* const *lcd_fastpixelfuncs;
#elif LCD_DEPTH > 1
extern lcd_pixelfunc_type* const *lcd_pixelfuncs;
extern lcd_blockfunc_type* const *lcd_blockfuncs;
#else /* LCD_DEPTH == 1*/
extern lcd_pixelfunc_type* const lcd_pixelfuncs[8];
extern lcd_blockfunc_type* const lcd_blockfuncs[8];
#endif /* LCD_DEPTH */
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_gradient_fillrect(int x, int y, int width, int height,
unsigned start_rgb, unsigned end_rgb);
extern void lcd_gradient_fillrect_part(int x, int y, int width, int height,
unsigned start_rgb, unsigned end_rgb, int src_height, int row_skip);
extern void lcd_draw_border_viewport(void);
extern void lcd_fill_viewport(void);
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_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);
#ifdef HAVE_LCD_COLOR
extern void lcd_set_selector_start(unsigned selector);
extern void lcd_set_selector_end(unsigned selector);
extern void lcd_set_selector_text(unsigned selector_text);
#endif
extern void lcd_set_drawinfo(int mode, unsigned foreground,
unsigned background);
void lcd_set_backdrop(fb_data* backdrop);
fb_data* lcd_get_backdrop(void);
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 /* LCD_DEPTH */
extern void lcd_bmp_part(const struct bitmap* bm, int src_x, int src_y,
int x, int y, int width, int height);
extern void lcd_bmp(const struct bitmap* bm, int x, int y);
extern void lcd_nine_segment_bmp(const struct bitmap* bm, int x, int y,
int width, int height);
/* TODO: Impement this for remote displays if ever needed */
#if defined(LCD_DPI) && (LCD_DPI > 0)
/* returns the pixel density of the display */
static inline int lcd_get_dpi(void) { return LCD_DPI; }
#else
extern int lcd_get_dpi(void);
#endif /* LCD_DPI */
#ifdef FB_DOUBLEBUF
extern int doublebuf;
#endif
#endif /* __LCD_H__ */
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