forked from len0rd/rockbox
abdc5935be
It handles exit() properly, calling the handler also when the plugin returns normally (also it makes exit() more standard compliant while at it). It also holds PLUGIN_HEADER, so that it doesn't need to be in each plugin anymore. To work better together with callbacks passed to rb->default_event_handler_ex introduce exit_on_usb() which will call the exit handler before showing the usb screen and exit() after it. In most cases it was passed a callback which was manually called at all other return points. This can now be done via atexit(). In future plugin_crt0.c could also handle clearing bss, initializing iram and more. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27862 a1c6a512-1295-4272-9138-f99709370657
84 lines
2.6 KiB
C
84 lines
2.6 KiB
C
/*****************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// __ \_/ ___\| |/ /| __ \ / __ \ \/ /
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* Jukebox | | ( (__) ) \___| ( | \_\ ( (__) ) (
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2008 Andrew Mahone
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "plugin.h"
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#include "lib/grey.h"
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#include "lib/mylcd.h"
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/* different graphics libraries */
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#if LCD_DEPTH < 8
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#define USEGSLIB
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GREY_INFO_STRUCT
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#define CFORMAT &format_grey
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#else
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#define CFORMAT NULL
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#endif
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/* this is the plugin entry point */
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enum plugin_status plugin_start(const void* parameter)
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{
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size_t plugin_buf_len;
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unsigned char * plugin_buf =
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(unsigned char *)rb->plugin_get_buffer(&plugin_buf_len);
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static char filename[MAX_PATH];
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struct bitmap bm = {
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.width = LCD_WIDTH,
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.height = LCD_HEIGHT,
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};
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int ret;
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if(!parameter) return PLUGIN_ERROR;
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rb->strcpy(filename, parameter);
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#ifdef USEGSLIB
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long greysize;
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if (!grey_init(plugin_buf, plugin_buf_len, GREY_ON_COP,
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LCD_WIDTH, LCD_HEIGHT, &greysize))
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{
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rb->splash(HZ, "grey buf error");
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return PLUGIN_ERROR;
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}
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plugin_buf += greysize;
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plugin_buf_len -= greysize;
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#endif
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bm.data = plugin_buf;
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ret = rb->read_jpeg_file(filename, &bm, plugin_buf_len,
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FORMAT_NATIVE|FORMAT_RESIZE|FORMAT_KEEP_ASPECT,
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CFORMAT);
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if (ret < 1)
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return PLUGIN_ERROR;
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#ifdef USEGSLIB
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grey_show(true);
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grey_ub_gray_bitmap((const unsigned char *)bm.data, (LCD_WIDTH - bm.width) >> 1,
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(LCD_HEIGHT - bm.height) >> 1, bm.width, bm.height);
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#else
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rb->lcd_bitmap((const fb_data *)bm.data, (LCD_WIDTH - bm.width) >> 1,
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(LCD_HEIGHT - bm.height) >> 1, bm.width, bm.height);
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#endif
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mylcd_ub_update();
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while (rb->get_action(CONTEXT_STD,1) != ACTION_STD_OK) rb->yield();
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#ifdef USEGSLIB
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grey_release();
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#endif
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return PLUGIN_OK;
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}
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