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rockbox/apps/plugins/lib/osd.c
Michael Sevakis 371c86bf3f Adapt OSD in plugin lib to be greylib compatible. 
Requires addition of viewports and alternate framebuffers to greylib
which are essentially similar to the core implementation except that
the framebuffer can be any size and relationship to a viewport. Drawing
is always fully clipped to the intersecting area.

Adapt oscilloscope.c to the API change. FFT will use the new features
(later update).

Get rid of silly and wrong lcd_bmp_part use in OSD. Remove it from
plugin API (must be made incompatible now).

Change-Id: Iafa5e2174148fb8ad11db6b9d4add0dcabc5c563
2012-12-18 19:16:26 -05:00

852 lines
23 KiB
C
Raw Blame History

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Floating on-screen display
*
* Copyright (C) 2012 Michael Sevakis
*
* 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.
*
****************************************************************************/
#include "plugin.h"
#include "grey.h"
#include "osd.h"
#if 1
#undef DEBUGF
#define DEBUGF(...)
#endif
#if defined(SIMULATOR) && LCD_DEPTH < 4
/* Sim isn't using --ffunction-sections thus greylib references will happen
here even if not using this with greylib on a grayscale display, which
demands that a struct _grey_info exist. */
#ifndef _WIN32
__attribute__((weak))
#endif /* _WIN32 */
struct _grey_info _grey_info;
#endif /* defined(SIMULATOR) && LCD_DEPTH < 4 */
/* At this time: assumes use of the default viewport for normal drawing */
/* If multiple OSD's are wanted, could convert to caller-allocated */
struct osd
{
enum osd_status
{
OSD_DISABLED = 0, /* Disabled entirely */
OSD_HIDDEN, /* Hidden from view */
OSD_VISIBLE, /* Visible on screen */
OSD_ERASED, /* Erased in preparation for regular drawing */
} status; /* View status */
struct viewport vp; /* Clipping viewport */
int lcd_bitmap_stride; /* Stride of LCD bitmap */
void *lcd_bitmap_data; /* Backbuffer framebuffer data */
int back_bitmap_stride; /* Stride of backbuffer bitmap */
void *back_bitmap_data; /* LCD framebuffer data */
int maxwidth; /* How wide may it be at most? */
int maxheight; /* How high may it be at most? */
long timeout; /* Current popup stay duration */
long hide_tick; /* Tick when it should be hidden */
osd_draw_cb_fn_t draw_cb; /* Draw update callback */
/* Functions to factilitate interface compatibility of OSD types */
void * (*init_buffers)(struct osd *osd, unsigned flags, void *buf,
size_t *bufsize);
void (*set_viewport_pos)(struct viewport *vp, int x, int y, int width,
int height);
void (*lcd_update)(void);
void (*lcd_update_rect)(int x, int y, int width, int height);
void (*lcd_set_viewport)(struct viewport *vp);
void (*lcd_set_framebuffer)(void *buf);
void (*lcd_framebuffer_set_pos)(int x, int y, int width, int height);
void (*lcd_bitmap_part)(const void *src, int src_x, int src_y,
int stride, int x, int y, int width, int height);
};
static struct osd native_osd;
#if LCD_DEPTH < 4
static struct osd grey_osd;
#endif
/* Framebuffer allocation macros */
#if LCD_DEPTH == 1
# if LCD_PIXELFORMAT == HORIZONTAL_PACKING
# define _OSD_WIDTH2BYTES(w) (((w)+7)/8)
# define _OSD_BYTES2WIDTH(b) ((b)*8)
# elif LCD_PIXELFORMAT == VERTICAL_PACKING
# define _OSD_HEIGHT2BYTES(h) (((h)+7)/8)
# define _OSD_BYTES2HEIGHT(b) ((b)*8)
# else
# error Unknown 1-bit format; please define macros
# endif /* LCD_PIXELFORMAT */
#elif LCD_DEPTH == 2
# if LCD_PIXELFORMAT == HORIZONTAL_PACKING
# define _OSD_WIDTH2BYTES(w) (((w)+3)/4)
# define _OSD_BYTES2WIDTH(b) ((b)*4)
# elif LCD_PIXELFORMAT == VERTICAL_PACKING
# define _OSD_HEIGHT2BYTES(h) (((h)+3)/4)
# define _OSD_BYTES2HEIGHT(b) ((b)*4)
# elif LCD_PIXELFORMAT == VERTICAL_INTERLEAVED
# define _OSD_HEIGHT2BYTES(h) (((h)+7)/8*2)
# define _OSD_BYTES2HEIGHT(b) ((b)/2*8)
# else
# error Unknown 2-bit format; please define macros
# endif /* LCD_PIXELFORMAT */
#elif LCD_DEPTH == 16
# if defined(LCD_STRIDEFORMAT) && LCD_STRIDEFORMAT == VERTICAL_STRIDE
# define _OSD_HEIGHT2BYTES(h) ((h)*2)
# define _OSD_BYTES2HEIGHT(b) ((b)/2)
# else /* !defined(LCD_STRIDEFORMAT) || LCD_STRIDEFORMAT != VERTICAL_STRIDE */
# define _OSD_WIDTH2BYTES(w) ((w)*2)
# define _OSD_BYTES2WIDTH(b) ((b)/2)
# endif /* end stride type selection */
#else /* other LCD depth */
# error Unknown LCD depth; please define macros
#endif /* LCD_DEPTH */
/* Set defaults if not defined differently */
#ifndef _OSD_WIDTH2BYTES
# define _OSD_WIDTH2BYTES(w) (w)
#endif
#ifndef _OSD_BYTES2WIDTH
# define _OSD_BYTES2WIDTH(b) (b)
#endif
#ifndef _OSD_HEIGHT2BYTES
# define _OSD_HEIGHT2BYTES(h) (h)
#endif
#ifndef _OSD_BYTES2HEIGHT
# define _OSD_BYTES2HEIGHT(b) (b)
#endif
#ifndef _OSD_BUFSIZE
# define _OSD_BUFSIZE(w, h) (_OSD_WIDTH2BYTES(w)*_OSD_HEIGHT2BYTES(h))
#endif
static void _osd_destroy(struct osd *osd);
static bool _osd_show(struct osd *osd, unsigned flags);
/** Native LCD routines **/
/* Create a bitmap framebuffer from a buffer */
static void * _osd_lcd_init_buffers(struct osd *osd, unsigned flags,
void *buf, size_t *bufsize)
{
/* Used as dest, the LCD functions cannot deal with alternate
strides as of now - the stride guides the calulations. If
that is no longer the case, then width or height can be
used instead (and less memory needed for a small surface!).
IOW: crappiness means one dimension is non-negotiable.
*/
DEBUGF("OSD: in(buf=%p bufsize=%lu)\n", buf,
(unsigned long)*bufsize);
rb->viewport_set_fullscreen(&osd->vp, SCREEN_MAIN);
#if defined(LCD_STRIDEFORMAT) && LCD_STRIDEFORMAT == VERTICAL_STRIDE
int colbytes = _OSD_HEIGHT2BYTES(LCD_HEIGHT);
int bytecols = *bufsize / colbytes;
int w = _OSD_BYTES2WIDTH(bytecols);
int h = _OSD_BYTES2HEIGHT(colbytes);
if (flags & OSD_INIT_MAJOR_HEIGHT)
{
if (w == 0 || ((flags & OSD_INIT_MINOR_MIN) && w < osd->maxwidth))
{
DEBUGF("OSD: not enough buffer\n");
return NULL; /* not enough buffer */
}
if ((flags & OSD_INIT_MINOR_MAX) && w > osd->maxwidth)
w = osd->maxwidth;
}
else /* OSD_INIT_MAJOR_WIDTH implied */
{
if (w == 0 || w < osd->maxwidth)
{
DEBUGF("OSD: not enough buffer\n");
return NULL; /* not enough buffer */
}
else if (w > osd->maxwidth)
{
w = osd->maxwidth;
}
}
w = _OSD_BYTES2WIDTH(_OSD_WIDTH2BYTES(w));
osd->lcd_bitmap_stride = _OSD_BYTES2HEIGHT(_OSD_HEIGHT2BYTES(LCD_HEIGHT));
osd->back_bitmap_stride = h;
#else /* !defined(LCD_STRIDEFORMAT) || LCD_STRIDEFORMAT != VERTICAL_STRIDE */
int rowbytes = _OSD_WIDTH2BYTES(LCD_WIDTH);
int byterows = *bufsize / rowbytes;
int w = _OSD_BYTES2WIDTH(rowbytes);
int h = _OSD_BYTES2HEIGHT(byterows);
if (flags & OSD_INIT_MAJOR_HEIGHT)
{
if (h == 0 || h < osd->maxheight)
{
DEBUGF("OSD: not enough buffer\n");
return NULL;
}
else if (h > osd->maxheight)
{
h = osd->maxheight;
}
}
else /* OSD_INIT_MAJOR_WIDTH implied */
{
if (h == 0 || ((flags & OSD_INIT_MINOR_MIN) && h < osd->maxheight))
{
DEBUGF("OSD: not enough buffer\n");
return NULL;
}
if ((flags & OSD_INIT_MINOR_MAX) && h > osd->maxheight)
h = osd->maxheight;
}
h = _OSD_BYTES2HEIGHT(_OSD_HEIGHT2BYTES(h));
osd->lcd_bitmap_stride = _OSD_BYTES2WIDTH(_OSD_WIDTH2BYTES(LCD_WIDTH));
osd->back_bitmap_stride = w;
#endif /* end stride type selection */
osd->lcd_bitmap_data = (void *)rb->lcd_framebuffer;
osd->back_bitmap_data = buf;
osd->maxwidth = w;
osd->maxheight = h;
*bufsize = _OSD_BUFSIZE(w, h);
DEBUGF("OSD: addr(fb=%p bb=%p)\n", osd->lcd_bitmap_data,
osd->back_bitmap_data);
DEBUGF("OSD: w=%d h=%d bufsz=%lu\n", w, h, (unsigned long)*bufsize);
return buf;
}
/* Set viewport coordinates */
static void _osd_lcd_viewport_set_pos(
struct viewport *vp, int x, int y, int width, int height)
{
vp->x = x;
vp->y = y;
vp->width = width;
vp->height = height;
}
#if LCD_DEPTH < 4
/** Greylib LCD routines **/
/* Create a greylib bitmap framebuffer from a buffer */
static void * _osd_grey_init_buffers(struct osd *osd, unsigned flags,
void *buf, size_t *bufsize)
{
int w, h;
DEBUGF("OSD (grey): in(buf=%p bufsize=%lu)\n", buf,
(unsigned long)*bufsize);
grey_viewport_set_fullscreen(&osd->vp, SCREEN_MAIN);
if (flags & OSD_INIT_MAJOR_HEIGHT)
{
h = osd->maxheight;
w = *bufsize / h;
if (w == 0 || ((flags & OSD_INIT_MINOR_MIN) && w < osd->maxwidth))
{
DEBUGF("OSD (grey): Not enough buffer\n");
return NULL;
}
if ((flags & OSD_INIT_MINOR_MAX) && w > osd->maxwidth)
w = osd->maxwidth;
}
else /* OSD_INIT_MAJOR_WIDTH implied */
{
w = osd->maxwidth;
h = *bufsize / w;
if (h == 0 || ((flags & OSD_INIT_MINOR_MIN) && h < osd->maxheight))
{
DEBUGF("OSD (grey): Not enough buffer\n");
return NULL;
}
if ((flags & OSD_INIT_MINOR_MAX) && h > osd->maxheight)
h = osd->maxheight;
}
/* Have to peek into _grey_info a bit */
osd->lcd_bitmap_stride = _grey_info.width;
osd->lcd_bitmap_data = _grey_info.buffer;
osd->back_bitmap_stride = w;
osd->back_bitmap_data = buf;
osd->maxwidth = w;
osd->maxheight = h;
*bufsize = w * h;
DEBUGF("OSD (grey): addr(fb=%p bb=%p)\n", osd->lcd_bitmap_data,
osd->back_bitmap_data);
DEBUGF("OSD (grey): w=%d h=%d bufsz=%lu\n", w, h, (unsigned long)*bufsize);
return buf;
}
#endif /* LCD_DEPTH < 4*/
/** Common LCD routines **/
/* Draw the OSD image portion using the callback */
static void _osd_draw_osd_rect(struct osd *osd, int x, int y,
int width, int height)
{
osd->lcd_set_viewport(&osd->vp);
osd->draw_cb(x, y, width, height);
osd->lcd_set_viewport(NULL);
}
/* Draw the OSD image using the callback */
static void _osd_draw_osd(struct osd *osd)
{
_osd_draw_osd_rect(osd, 0, 0, osd->vp.width, osd->vp.height);
}
static void _osd_update_viewport(struct osd *osd)
{
osd->lcd_update_rect(osd->vp.x, osd->vp.y, osd->vp.width,
osd->vp.height);
}
/* Sync the backbuffer to the framebuffer image */
static void _osd_update_back_buffer(struct osd *osd)
{
/* Assume it's starting with default viewport for now */
osd->lcd_set_framebuffer(osd->back_bitmap_data);
#if LCD_DEPTH < 4
if (osd->lcd_framebuffer_set_pos)
osd->lcd_framebuffer_set_pos(0, 0, osd->maxwidth, osd->maxheight);
#endif /* LCD_DEPTH < 4 */
osd->lcd_bitmap_part(osd->lcd_bitmap_data, osd->vp.x, osd->vp.y,
osd->lcd_bitmap_stride, 0, 0, osd->vp.width,
osd->vp.height);
/* Assume it was on default framebuffer for now */
osd->lcd_set_framebuffer(NULL);
}
/* Erase the OSD to restore the framebuffer image */
static void _osd_erase_osd(struct osd *osd)
{
osd->lcd_bitmap_part(osd->back_bitmap_data, 0, 0, osd->back_bitmap_stride,
osd->vp.x, osd->vp.y, osd->vp.width, osd->vp.height);
}
/* Initialized the OSD and set its backbuffer */
static bool _osd_init(struct osd *osd, unsigned flags, void *backbuf,
size_t backbuf_size, osd_draw_cb_fn_t draw_cb,
int *width, int *height, size_t *bufused)
{
_osd_destroy(osd);
if (!draw_cb)
return false;
if (!backbuf)
return false;
void *backbuf_orig = backbuf; /* Save in case of ptr advance */
ALIGN_BUFFER(backbuf, backbuf_size, MAX(FB_DATA_SZ, 4));
if (!backbuf_size)
return false;
if (flags & OSD_INIT_MAJOR_HEIGHT)
{
if (!height || *height <= 0)
return false;
if ((flags & (OSD_INIT_MINOR_MIN | OSD_INIT_MINOR_MAX)) &&
(!width || *width <= 0))
{
return false;
}
}
else
{
if (!width || *width <= 0)
return false;
if ((flags & (OSD_INIT_MINOR_MIN | OSD_INIT_MINOR_MAX)) &&
(!height || *height <= 0))
{
return false;
}
}
/* Store requested sizes in max(width|height) */
if (width)
osd->maxwidth = *width;
else
osd->maxwidth = LCD_WIDTH;
if (height)
osd->maxheight = *height;
else
osd->maxheight = LCD_HEIGHT;
if (!osd->init_buffers(osd, flags, backbuf, &backbuf_size))
{
osd->maxwidth = osd->maxheight = 0;
return false;
}
osd->draw_cb = draw_cb;
if (bufused)
*bufused = backbuf_size + (backbuf_orig - backbuf);
if (width)
*width = osd->maxwidth;
if (height)
*height = osd->maxheight;
/* Set the default position to the whole thing */
osd->set_viewport_pos(&osd->vp, 0, 0, osd->maxwidth, osd->maxheight);
osd->status = OSD_HIDDEN; /* Ready when you are */
return true;
}
static void _osd_destroy(struct osd *osd)
{
_osd_show(osd, OSD_HIDE);
/* Set to essential defaults */
osd->status = OSD_DISABLED;
osd->set_viewport_pos(&osd->vp, 0, 0, 0, 0);
osd->maxwidth = osd->maxheight = 0;
osd->timeout = 0;
}
/* Redraw the entire OSD */
static bool _osd_update(struct osd *osd)
{
if (osd->status != OSD_VISIBLE)
return false;
_osd_draw_osd(osd);
_osd_update_viewport(osd);
return true;
}
/* Show/Hide the OSD on screen */
static bool _osd_show(struct osd *osd, unsigned flags)
{
if (flags & OSD_SHOW)
{
switch (osd->status)
{
case OSD_DISABLED:
break; /* No change */
case OSD_HIDDEN:
_osd_update_back_buffer(osd);
osd->status = OSD_VISIBLE;
_osd_update(osd);
osd->hide_tick = *rb->current_tick + osd->timeout;
break;
case OSD_VISIBLE:
if (flags & OSD_UPDATENOW)
_osd_update(osd);
/* Fall-through */
case OSD_ERASED:
osd->hide_tick = *rb->current_tick + osd->timeout;
return true;
}
}
else
{
switch (osd->status)
{
case OSD_DISABLED:
case OSD_HIDDEN:
break;
case OSD_VISIBLE:
_osd_erase_osd(osd);
_osd_update_viewport(osd);
/* Fall-through */
case OSD_ERASED:
osd->status = OSD_HIDDEN;
return true;
}
}
return false;
}
/* Redraw part of the OSD (viewport-relative coordinates) */
static bool _osd_update_rect(struct osd *osd, int x, int y, int width,
int height)
{
if (osd->status != OSD_VISIBLE)
return false;
_osd_draw_osd_rect(osd, x, y, width, height);
int vp_x = osd->vp.x;
int vp_w = osd->vp.width;
if (x + width > vp_w)
width = vp_w - x;
if (x < 0)
{
width += x;
x = 0;
}
if (width <= 0)
return false;
int vp_y = osd->vp.y;
int vp_h = osd->vp.height;
if (y + height > vp_h)
height = vp_h - y;
if (y < 0)
{
height += y;
y = 0;
}
if (height <= 0)
return false;
osd->lcd_update_rect(vp_x + x, vp_y + y, width, height);
return true;
}
/* Set a new screen location and size (screen coordinates) */
static bool _osd_update_pos(struct osd *osd, int x, int y, int width,
int height)
{
if (osd->status == OSD_DISABLED)
return false;
if (width < 0)
width = 0;
else if (width > osd->maxwidth)
width = osd->maxwidth;
if (height < 0)
height = 0;
else if (height > osd->maxheight)
height = osd->maxheight;
int vp_x = osd->vp.x;
int vp_y = osd->vp.y;
int vp_w = osd->vp.width;
int vp_h = osd->vp.height;
if (x == vp_x && y == vp_y && width == vp_w && height == vp_h)
return false; /* No change */
if (osd->status != OSD_VISIBLE)
{
/* Not visible - just update pos */
osd->set_viewport_pos(&osd->vp, x, y, width, height);
return false;
}
/* Visible area has changed */
_osd_erase_osd(osd);
/* Update the smallest rectangle that encloses both the old and new
regions to make the change free of flicker (they may overlap) */
int xu = MIN(vp_x, x);
int yu = MIN(vp_y, y);
int wu = MAX(vp_x + vp_w, x + width) - xu;
int hu = MAX(vp_y + vp_h, y + height) - yu;
osd->set_viewport_pos(&osd->vp, x, y, width, height);
_osd_update_back_buffer(osd);
_osd_draw_osd(osd);
osd->lcd_update_rect(xu, yu, wu, hu);
return true;
}
/* Call periodically to have the OSD timeout and hide itself */
static void _osd_monitor_timeout(struct osd *osd)
{
if (osd->status <= OSD_HIDDEN)
return; /* Already hidden/disabled */
if (osd->timeout > 0 && TIME_AFTER(*rb->current_tick, osd->hide_tick))
_osd_show(osd, OSD_HIDE);
}
/* Set the OSD timeout value. <= 0 = never timeout */
static void _osd_set_timeout(struct osd *osd, long timeout)
{
if (osd->status == OSD_DISABLED)
return;
osd->timeout = timeout;
_osd_monitor_timeout(osd);
}
/* Use the OSD viewport context */
static inline struct viewport * _osd_get_viewport(struct osd *osd)
{
return &osd->vp;
}
/* Get the maximum dimensions calculated by osd_init() */
static void _osd_get_max_dims(struct osd *osd,
int *maxwidth, int *maxheight)
{
if (maxwidth)
*maxwidth = osd->maxwidth;
if (maxheight)
*maxheight = osd->maxheight;
}
/* Is the OSD enabled? */
static inline bool _osd_enabled(struct osd *osd)
{
return osd->status != OSD_DISABLED;
}
/** LCD update substitutes **/
/* Prepare LCD framebuffer for regular drawing */
static inline void _osd_lcd_update_prepare(struct osd *osd)
{
if (osd->status == OSD_VISIBLE)
{
osd->status = OSD_ERASED;
_osd_erase_osd(osd);
}
}
/* Update the whole screen */
static inline void _osd_lcd_update(struct osd *osd)
{
if (osd->status == OSD_ERASED)
{
/* Save the screen image underneath and restore the OSD image */
osd->status = OSD_VISIBLE;
_osd_update_back_buffer(osd);
_osd_draw_osd(osd);
}
osd->lcd_update();
}
/* Update a part of the screen */
static void _osd_lcd_update_rect(struct osd *osd,
int x, int y, int width, int height)
{
if (osd->status == OSD_ERASED)
{
/* Save the screen image underneath and restore the OSD image */
osd->status = OSD_VISIBLE;
_osd_update_back_buffer(osd);
_osd_draw_osd(osd);
}
osd->lcd_update_rect(x, y, width, height);
}
/* Native LCD, public */
bool osd_init(unsigned flags, void *backbuf, size_t backbuf_size,
osd_draw_cb_fn_t draw_cb, int *width, int *height,
size_t *bufused)
{
native_osd.init_buffers = _osd_lcd_init_buffers;
native_osd.set_viewport_pos = _osd_lcd_viewport_set_pos;
native_osd.lcd_update = rb->lcd_update;
native_osd.lcd_update_rect = rb->lcd_update_rect;
native_osd.lcd_set_viewport = rb->lcd_set_viewport;
native_osd.lcd_set_framebuffer = (void *)rb->lcd_set_framebuffer;
#if LCD_DEPTH < 4
native_osd.lcd_framebuffer_set_pos = NULL;
#endif /* LCD_DEPTH < 4 */
native_osd.lcd_bitmap_part = (void *)rb->lcd_bitmap_part;
return _osd_init(&native_osd, flags, backbuf, backbuf_size, draw_cb,
width, height, bufused);
}
void osd_destroy(void)
{
return _osd_destroy(&native_osd);
}
bool osd_show(unsigned flags)
{
return _osd_show(&native_osd, flags);
}
bool osd_update(void)
{
return _osd_update(&native_osd);
}
bool osd_update_rect(int x, int y, int width, int height)
{
return _osd_update_rect(&native_osd, x, y, width, height);
}
bool osd_update_pos(int x, int y, int width, int height)
{
return _osd_update_pos(&native_osd, x, y, width, height);
}
void osd_monitor_timeout(void)
{
_osd_monitor_timeout(&native_osd);
}
void osd_set_timeout(long timeout)
{
_osd_set_timeout(&native_osd, timeout);
}
struct viewport * osd_get_viewport(void)
{
return _osd_get_viewport(&native_osd);
}
void osd_get_max_dims(int *maxwidth, int *maxheight)
{
_osd_get_max_dims(&native_osd, maxwidth, maxheight);
}
bool osd_enabled(void)
{
return _osd_enabled(&native_osd);
}
void osd_lcd_update_prepare(void)
{
_osd_lcd_update_prepare(&native_osd);
}
void osd_lcd_update(void)
{
_osd_lcd_update(&native_osd);
}
void osd_lcd_update_rect(int x, int y, int width, int height)
{
_osd_lcd_update_rect(&native_osd, x, y, width, height);
}
#if LCD_DEPTH < 4
/* Greylib LCD, public */
bool osd_grey_init(unsigned flags, void *backbuf, size_t backbuf_size,
osd_draw_cb_fn_t draw_cb, int *width, int *height,
size_t *bufused)
{
grey_osd.init_buffers = _osd_grey_init_buffers;
grey_osd.set_viewport_pos = grey_viewport_set_pos;
grey_osd.lcd_update = grey_update;
grey_osd.lcd_update_rect = grey_update_rect;
grey_osd.lcd_set_viewport = grey_set_viewport;
grey_osd.lcd_set_framebuffer = (void *)grey_set_framebuffer;
grey_osd.lcd_framebuffer_set_pos = grey_framebuffer_set_pos;
grey_osd.lcd_bitmap_part = (void *)grey_gray_bitmap_part;
return _osd_init(&grey_osd, flags, backbuf, backbuf_size, draw_cb,
width, height, bufused);
}
void osd_grey_destroy(void)
{
return _osd_destroy(&grey_osd);
}
bool osd_grey_show(unsigned flags)
{
return _osd_show(&grey_osd, flags);
}
bool osd_grey_update(void)
{
return _osd_update(&grey_osd);
}
bool osd_grey_update_rect(int x, int y, int width, int height)
{
return _osd_update_rect(&grey_osd, x, y, width, height);
}
bool osd_grey_update_pos(int x, int y, int width, int height)
{
return _osd_update_pos(&grey_osd, x, y, width, height);
}
void osd_grey_monitor_timeout(void)
{
_osd_monitor_timeout(&grey_osd);
}
void osd_grey_set_timeout(long timeout)
{
_osd_set_timeout(&grey_osd, timeout);
}
struct viewport * osd_grey_get_viewport(void)
{
return _osd_get_viewport(&grey_osd);
}
void osd_grey_get_max_dims(int *maxwidth, int *maxheight)
{
_osd_get_max_dims(&grey_osd, maxwidth, maxheight);
}
bool osd_grey_enabled(void)
{
return _osd_enabled(&grey_osd);
}
void osd_grey_lcd_update_prepare(void)
{
_osd_lcd_update_prepare(&grey_osd);
}
void osd_grey_lcd_update(void)
{
_osd_lcd_update(&grey_osd);
}
void osd_grey_lcd_update_rect(int x, int y, int width, int height)
{
_osd_lcd_update_rect(&grey_osd, x, y, width, height);
}
#endif /* LCD_DEPTH < 4 */
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