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rockbox/apps/plugins/imageviewer/imageviewer.h
Marcin Bukat b09d3aec39 Add MPIO HD200 port - changed files 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25724 a1c6a512-1295-4272-9138-f99709370657
2010-04-26 21:40:00 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* user intereface of image viewers (jpeg, png, etc.)
*
* 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 _IMGVIEW_IMGVIEW_H
#define _IMGVIEW_IMGVIEW_H
#include "plugin.h"
/* variable button definitions */
#if CONFIG_KEYPAD == RECORDER_PAD
#define IMGVIEW_ZOOM_IN BUTTON_PLAY
#define IMGVIEW_ZOOM_OUT BUTTON_ON
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_F3
#define IMGVIEW_PREVIOUS BUTTON_F2
#define IMGVIEW_MENU BUTTON_OFF
#elif CONFIG_KEYPAD == ARCHOS_AV300_PAD
#define IMGVIEW_ZOOM_IN BUTTON_SELECT
#define IMGVIEW_ZOOM_OUT BUTTON_ON
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_F3
#define IMGVIEW_PREVIOUS BUTTON_F2
#define IMGVIEW_MENU BUTTON_OFF
#elif CONFIG_KEYPAD == ONDIO_PAD
#define IMGVIEW_ZOOM_PRE BUTTON_MENU
#define IMGVIEW_ZOOM_IN (BUTTON_MENU | BUTTON_REL)
#define IMGVIEW_ZOOM_OUT (BUTTON_MENU | BUTTON_DOWN)
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT (BUTTON_MENU | BUTTON_RIGHT)
#define IMGVIEW_PREVIOUS (BUTTON_MENU | BUTTON_LEFT)
#define IMGVIEW_MENU BUTTON_OFF
#elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
(CONFIG_KEYPAD == IRIVER_H300_PAD)
#define IMGVIEW_ZOOM_IN BUTTON_SELECT
#define IMGVIEW_ZOOM_OUT BUTTON_MODE
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#if (CONFIG_KEYPAD == IRIVER_H100_PAD)
#define IMGVIEW_NEXT BUTTON_ON
#define IMGVIEW_PREVIOUS BUTTON_REC
#else
#define IMGVIEW_NEXT BUTTON_REC
#define IMGVIEW_PREVIOUS BUTTON_ON
#endif
#define IMGVIEW_MENU BUTTON_OFF
#define IMGVIEW_RC_MENU BUTTON_RC_STOP
#elif (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) || \
(CONFIG_KEYPAD == IPOD_1G2G_PAD)
#define IMGVIEW_ZOOM_IN BUTTON_SCROLL_FWD
#define IMGVIEW_ZOOM_OUT BUTTON_SCROLL_BACK
#define IMGVIEW_UP BUTTON_MENU
#define IMGVIEW_DOWN BUTTON_PLAY
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT (BUTTON_SELECT | BUTTON_RIGHT)
#define IMGVIEW_PREVIOUS (BUTTON_SELECT | BUTTON_LEFT)
#define IMGVIEW_MENU (BUTTON_SELECT | BUTTON_MENU)
#define IMGVIEW_QUIT (BUTTON_SELECT | BUTTON_PLAY)
#elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
#define IMGVIEW_ZOOM_PRE BUTTON_SELECT
#define IMGVIEW_ZOOM_IN (BUTTON_SELECT | BUTTON_REL)
#define IMGVIEW_ZOOM_OUT (BUTTON_SELECT | BUTTON_REPEAT)
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_PLAY
#define IMGVIEW_PREVIOUS BUTTON_REC
#define IMGVIEW_MENU BUTTON_POWER
#elif CONFIG_KEYPAD == GIGABEAT_PAD
#define IMGVIEW_ZOOM_IN BUTTON_VOL_UP
#define IMGVIEW_ZOOM_OUT BUTTON_VOL_DOWN
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT (BUTTON_A | BUTTON_RIGHT)
#define IMGVIEW_PREVIOUS (BUTTON_A | BUTTON_LEFT)
#define IMGVIEW_MENU BUTTON_MENU
#define IMGVIEW_QUIT BUTTON_POWER
#elif CONFIG_KEYPAD == SANSA_E200_PAD
#define IMGVIEW_ZOOM_PRE BUTTON_SELECT
#define IMGVIEW_ZOOM_IN (BUTTON_SELECT | BUTTON_REL)
#define IMGVIEW_ZOOM_OUT (BUTTON_SELECT | BUTTON_REPEAT)
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_SCROLL_FWD
#define IMGVIEW_NEXT_REPEAT (BUTTON_SCROLL_FWD|BUTTON_REPEAT)
#define IMGVIEW_PREVIOUS BUTTON_SCROLL_BACK
#define IMGVIEW_PREVIOUS_REPEAT (BUTTON_SCROLL_BACK|BUTTON_REPEAT)
#define IMGVIEW_MENU BUTTON_POWER
#define IMGVIEW_SLIDE_SHOW BUTTON_REC
#elif CONFIG_KEYPAD == SANSA_FUZE_PAD
#define IMGVIEW_ZOOM_PRE BUTTON_SELECT
#define IMGVIEW_ZOOM_IN (BUTTON_SELECT | BUTTON_REL)
#define IMGVIEW_ZOOM_OUT (BUTTON_SELECT | BUTTON_REPEAT)
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_SCROLL_FWD
#define IMGVIEW_NEXT_REPEAT (BUTTON_SCROLL_FWD|BUTTON_REPEAT)
#define IMGVIEW_PREVIOUS BUTTON_SCROLL_BACK
#define IMGVIEW_PREVIOUS_REPEAT (BUTTON_SCROLL_BACK|BUTTON_REPEAT)
#define IMGVIEW_MENU (BUTTON_HOME|BUTTON_REPEAT)
#elif CONFIG_KEYPAD == SANSA_C200_PAD
#define IMGVIEW_ZOOM_PRE BUTTON_SELECT
#define IMGVIEW_ZOOM_IN (BUTTON_SELECT | BUTTON_REL)
#define IMGVIEW_ZOOM_OUT (BUTTON_SELECT | BUTTON_REPEAT)
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_VOL_UP
#define IMGVIEW_NEXT_REPEAT (BUTTON_VOL_UP|BUTTON_REPEAT)
#define IMGVIEW_PREVIOUS BUTTON_VOL_DOWN
#define IMGVIEW_PREVIOUS_REPEAT (BUTTON_VOL_DOWN|BUTTON_REPEAT)
#define IMGVIEW_MENU BUTTON_POWER
#define IMGVIEW_SLIDE_SHOW BUTTON_REC
#elif CONFIG_KEYPAD == SANSA_CLIP_PAD
#define IMGVIEW_ZOOM_PRE BUTTON_SELECT
#define IMGVIEW_ZOOM_IN (BUTTON_SELECT | BUTTON_REL)
#define IMGVIEW_ZOOM_OUT (BUTTON_SELECT | BUTTON_REPEAT)
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_VOL_UP
#define IMGVIEW_NEXT_REPEAT (BUTTON_VOL_UP|BUTTON_REPEAT)
#define IMGVIEW_PREVIOUS BUTTON_VOL_DOWN
#define IMGVIEW_PREVIOUS_REPEAT (BUTTON_VOL_DOWN|BUTTON_REPEAT)
#define IMGVIEW_MENU BUTTON_POWER
#define IMGVIEW_SLIDE_SHOW BUTTON_HOME
#elif CONFIG_KEYPAD == SANSA_M200_PAD
#define IMGVIEW_ZOOM_PRE BUTTON_SELECT
#define IMGVIEW_ZOOM_IN (BUTTON_SELECT | BUTTON_REL)
#define IMGVIEW_ZOOM_OUT (BUTTON_SELECT | BUTTON_REPEAT)
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_VOL_UP
#define IMGVIEW_NEXT_REPEAT (BUTTON_VOL_UP|BUTTON_REPEAT)
#define IMGVIEW_PREVIOUS BUTTON_VOL_DOWN
#define IMGVIEW_PREVIOUS_REPEAT (BUTTON_VOL_DOWN|BUTTON_REPEAT)
#define IMGVIEW_MENU BUTTON_POWER
#define IMGVIEW_SLIDE_SHOW (BUTTON_SELECT | BUTTON_UP)
#elif CONFIG_KEYPAD == IRIVER_H10_PAD
#define IMGVIEW_ZOOM_PRE BUTTON_PLAY
#define IMGVIEW_ZOOM_IN (BUTTON_PLAY | BUTTON_REL)
#define IMGVIEW_ZOOM_OUT (BUTTON_PLAY | BUTTON_REPEAT)
#define IMGVIEW_UP BUTTON_SCROLL_UP
#define IMGVIEW_DOWN BUTTON_SCROLL_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_FF
#define IMGVIEW_PREVIOUS BUTTON_REW
#define IMGVIEW_MENU BUTTON_POWER
#elif CONFIG_KEYPAD == MROBE500_PAD
#define IMGVIEW_MENU BUTTON_POWER
#elif CONFIG_KEYPAD == GIGABEAT_S_PAD
#define IMGVIEW_ZOOM_IN BUTTON_VOL_UP
#define IMGVIEW_ZOOM_OUT BUTTON_VOL_DOWN
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_NEXT
#define IMGVIEW_PREVIOUS BUTTON_PREV
#define IMGVIEW_MENU BUTTON_MENU
#define IMGVIEW_QUIT BUTTON_BACK
#elif CONFIG_KEYPAD == MROBE100_PAD
#define IMGVIEW_ZOOM_IN BUTTON_SELECT
#define IMGVIEW_ZOOM_OUT BUTTON_PLAY
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT (BUTTON_DISPLAY | BUTTON_RIGHT)
#define IMGVIEW_PREVIOUS (BUTTON_DISPLAY | BUTTON_LEFT)
#define IMGVIEW_MENU BUTTON_MENU
#define IMGVIEW_QUIT BUTTON_POWER
#elif CONFIG_KEYPAD == IAUDIO_M3_PAD
#define IMGVIEW_ZOOM_PRE BUTTON_RC_PLAY
#define IMGVIEW_ZOOM_IN (BUTTON_RC_PLAY|BUTTON_REL)
#define IMGVIEW_ZOOM_OUT (BUTTON_RC_PLAY|BUTTON_REPEAT)
#define IMGVIEW_UP BUTTON_RC_VOL_UP
#define IMGVIEW_DOWN BUTTON_RC_VOL_DOWN
#define IMGVIEW_LEFT BUTTON_RC_REW
#define IMGVIEW_RIGHT BUTTON_RC_FF
#define IMGVIEW_NEXT BUTTON_RC_MODE
#define IMGVIEW_PREVIOUS BUTTON_RC_MENU
#define IMGVIEW_MENU BUTTON_RC_REC
#elif CONFIG_KEYPAD == COWON_D2_PAD
#elif CONFIG_KEYPAD == IAUDIO67_PAD
#define IMGVIEW_ZOOM_IN BUTTON_VOLUP
#define IMGVIEW_ZOOM_OUT BUTTON_VOLDOWN
#define IMGVIEW_UP BUTTON_STOP
#define IMGVIEW_DOWN BUTTON_PLAY
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT (BUTTON_PLAY|BUTTON_VOLUP)
#define IMGVIEW_PREVIOUS (BUTTON_PLAY|BUTTON_VOLDOWN)
#define IMGVIEW_MENU BUTTON_MENU
#elif CONFIG_KEYPAD == CREATIVEZVM_PAD
#define IMGVIEW_ZOOM_IN BUTTON_PLAY
#define IMGVIEW_ZOOM_OUT BUTTON_CUSTOM
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_SELECT
#define IMGVIEW_PREVIOUS BUTTON_BACK
#define IMGVIEW_MENU BUTTON_MENU
#elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
#define IMGVIEW_ZOOM_IN BUTTON_VOL_UP
#define IMGVIEW_ZOOM_OUT BUTTON_VOL_DOWN
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_VIEW
#define IMGVIEW_PREVIOUS BUTTON_PLAYLIST
#define IMGVIEW_MENU BUTTON_MENU
#define IMGVIEW_QUIT BUTTON_POWER
#elif CONFIG_KEYPAD == PHILIPS_SA9200_PAD
#define IMGVIEW_ZOOM_IN BUTTON_VOL_UP
#define IMGVIEW_ZOOM_OUT BUTTON_VOL_DOWN
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_PREV
#define IMGVIEW_RIGHT BUTTON_NEXT
#define IMGVIEW_NEXT BUTTON_RIGHT
#define IMGVIEW_PREVIOUS BUTTON_LEFT
#define IMGVIEW_MENU BUTTON_MENU
#define IMGVIEW_QUIT BUTTON_POWER
#elif CONFIG_KEYPAD == ONDAVX747_PAD
#elif CONFIG_KEYPAD == ONDAVX777_PAD
#elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
#define IMGVIEW_ZOOM_IN (BUTTON_PLAY|BUTTON_UP)
#define IMGVIEW_ZOOM_OUT (BUTTON_PLAY|BUTTON_DOWN)
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_LEFT
#define IMGVIEW_RIGHT BUTTON_RIGHT
#define IMGVIEW_NEXT BUTTON_FFWD
#define IMGVIEW_PREVIOUS BUTTON_REW
#define IMGVIEW_MENU_PRE BUTTON_PLAY
#define IMGVIEW_MENU (BUTTON_PLAY|BUTTON_REL)
#define IMGVIEW_QUIT BUTTON_REC
#elif CONFIG_KEYPAD == PBELL_VIBE500_PAD
#define IMGVIEW_ZOOM_IN (BUTTON_REC | BUTTON_UP)
#define IMGVIEW_ZOOM_OUT (BUTTON_REC | BUTTON_DOWN)
#define IMGVIEW_UP BUTTON_UP
#define IMGVIEW_DOWN BUTTON_DOWN
#define IMGVIEW_LEFT BUTTON_PREV
#define IMGVIEW_RIGHT BUTTON_NEXT
#define IMGVIEW_NEXT (BUTTON_REC | BUTTON_NEXT)
#define IMGVIEW_PREVIOUS (BUTTON_REC | BUTTON_PREV)
#define IMGVIEW_MENU BUTTON_MENU
#define IMGVIEW_QUIT BUTTON_CANCEL
#elif CONFIG_KEYPAD == MPIO_HD200_PAD
#define IMGVIEW_ZOOM_IN (BUTTON_REC|BUTTON_VOL_UP)
#define IMGVIEW_ZOOM_OUT (BUTTON_REC|BUTTON_VOL_DOWN)
#define IMGVIEW_UP BUTTON_PREV
#define IMGVIEW_DOWN BUTTON_NEXT
#define IMGVIEW_LEFT BUTTON_VOL_DOWN
#define IMGVIEW_RIGHT BUTTON_VOL_UP
#define IMGVIEW_NEXT (BUTTON_REC | BUTTON_NEXT)
#define IMGVIEW_PREVIOUS (BUTTON_REC | BUTTON_PREV)
#define IMGVIEW_MENU BUTTON_SELECT
#define IMGVIEW_QUIT (BUTTON_REC | BUTTON_PLAY)
#else
#error No keymap defined!
#endif
#ifdef HAVE_TOUCHSCREEN
#ifndef IMGVIEW_UP
#define IMGVIEW_UP BUTTON_TOPMIDDLE
#endif
#ifndef IMGVIEW_DOWN
#define IMGVIEW_DOWN BUTTON_BOTTOMMIDDLE
#endif
#ifndef IMGVIEW_LEFT
#define IMGVIEW_LEFT BUTTON_MIDLEFT
#endif
#ifndef IMGVIEW_RIGHT
#define IMGVIEW_RIGHT BUTTON_MIDRIGHT
#endif
#ifndef IMGVIEW_ZOOM_IN
#define IMGVIEW_ZOOM_IN BUTTON_TOPRIGHT
#endif
#ifndef IMGVIEW_ZOOM_OUT
#define IMGVIEW_ZOOM_OUT BUTTON_TOPLEFT
#endif
#ifndef IMGVIEW_MENU
#define IMGVIEW_MENU (BUTTON_CENTER|BUTTON_REL)
#endif
#ifndef IMGVIEW_NEXT
#define IMGVIEW_NEXT BUTTON_BOTTOMRIGHT
#endif
#ifndef IMGVIEW_PREVIOUS
#define IMGVIEW_PREVIOUS BUTTON_BOTTOMLEFT
#endif
#endif
/* different graphics libraries */
#if LCD_DEPTH < 8
#define USEGSLIB
#include <lib/grey.h>
#define MYLCD(fn) grey_ub_ ## fn
#define MYLCD_UPDATE()
#define MYXLCD(fn) grey_ub_ ## fn
#else
#include <lib/xlcd.h>
#define MYLCD(fn) rb->lcd_ ## fn
#define MYLCD_UPDATE() rb->lcd_update();
#define MYXLCD(fn) xlcd_ ## fn
#endif
/* Min memory allowing us to use the plugin buffer
* and thus not stopping the music
* *Very* rough estimation:
* Max 10 000 dir entries * 4bytes/entry (char **) = 40000 bytes
* + 30k code size = 70 000
* + 50k min for image = 120 000
*/
#define MIN_MEM 120000
/* State code for output with return. */
#define PLUGIN_OTHER 10
#define PLUGIN_ABORT 11
#define PLUGIN_OUTOFMEM 12
#if !defined(SIMULATOR) && defined(HAVE_DISK_STORAGE)
#define DISK_SPINDOWN
#endif
#if PLUGIN_BUFFER_SIZE >= MIN_MEM
#define USE_PLUG_BUF
#endif
/* Settings. jpeg needs these */
struct imgview_settings
{
/* include all settings for varias decoders as using same setting file. */
#ifdef HAVE_LCD_COLOR
int jpeg_colour_mode;
int jpeg_dither_mode;
#endif
int ss_timeout;
};
/* structure passed to decoder. */
struct image_info {
int x_size, y_size; /* set size of loaded image in load_image(). */
int width, height; /* set size of resized image in get_image(). */
int x, y; /* display position */
void *data; /* use freely in decoder. not touched in ui. */
};
/* callback updating a progress meter while image decoding */
extern void cb_progress(int current, int total);
extern struct imgview_settings settings;
extern bool slideshow_enabled;
extern bool running_slideshow;
#ifdef DISK_SPINDOWN
extern bool immediate_ata_off;
#endif
#ifdef USE_PLUG_BUF
extern bool plug_buf;
#endif
/* functions need to be implemented in each image decoders. */
/* return true if ext is supported by the decoder. */
extern bool img_ext(const char *ext);
/* return needed size of buffer to store downscaled image by ds */
extern int img_mem(int ds);
/* load image from filename. set width and height of info properly. also, set
* buf_size to remaining size of buf after load image. it is used to caluclate
* min downscale. */
extern int load_image(char *filename, struct image_info *info,
unsigned char *buf, ssize_t *buf_size);
/* downscale loaded image by ds. note that buf to store reszied image is not
* provided. return PLUGIN_ERROR for error. ui will skip to next image. */
extern int get_image(struct image_info *info, int ds);
/* draw part of image */
extern void draw_image_rect(struct image_info *info,
int x, int y, int width, int height);
#endif /* _IMGVIEW_IMGVIEW_H */
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