rockbox/apps/plugins/test_greylib_bitmap_scale.c
Andrew Mahone 23d9812273 loader-initialized global plugin API:
struct plugin_api *rb is declared in PLUGIN_HEADER, and pointed to by
__header.api

the loader uses this pointer to initialize rb before calling entry_point

entry_point is no longer passed a pointer to the plugin API

all plugins, and pluginlib functions, are modified to refer to the
global rb

pluginlib functions which only served to copy the API pointer are
removed

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19776 a1c6a512-1295-4272-9138-f99709370657
2009-01-16 10:34:40 +00:00

85 lines
2.5 KiB
C

/*****************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// __ \_/ ___\| |/ /| __ \ / __ \ \/ /
* Jukebox | | ( (__) ) \___| ( | \_\ ( (__) ) (
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 Andrew Mahone
*
* 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 "lib/grey.h"
#include "lib/pluginlib_resize.h"
#include "lib/pluginlib_bmp.h"
#if LCD_DEPTH == 1
#define BMP_LOAD read_bmp_file
#else
#define BMP_LOAD rb->read_bmp_file
#endif
PLUGIN_HEADER
GREY_INFO_STRUCT
static unsigned char grey_bm_buf[LCD_WIDTH * LCD_HEIGHT +
BM_SCALED_SIZE(LCD_WIDTH,0,FORMAT_NATIVE,0)];
MEM_FUNCTION_WRAPPERS
/* this is the plugin entry point */
enum plugin_status plugin_start(const void* parameter)
{
void * plugin_buf;
size_t plugin_buf_len;
static char filename[MAX_PATH];
struct bitmap grey_bm = {
.width = LCD_WIDTH,
.height = LCD_HEIGHT,
.data = grey_bm_buf
};
int ret, x, y;
if(!parameter) return PLUGIN_ERROR;
rb->strcpy(filename, parameter);
ret = BMP_LOAD(filename, &grey_bm, sizeof(grey_bm_buf),
FORMAT_NATIVE|FORMAT_RESIZE|FORMAT_KEEP_ASPECT,
&format_grey);
if(ret < 1)
{
rb->splash(HZ*2, "failed to load bitmap");
return PLUGIN_ERROR;
}
plugin_buf = rb->plugin_get_buffer(&plugin_buf_len);
if(!grey_init(plugin_buf, plugin_buf_len, 0, LCD_WIDTH, LCD_HEIGHT,
NULL))
{
rb->splash(HZ*2,"grey init failed");
return PLUGIN_ERROR;
}
grey_ub_clear_display();
x = (LCD_WIDTH - grey_bm.width) / 2;
y = (LCD_HEIGHT - grey_bm.height) / 2;
grey_ub_gray_bitmap(grey_bm_buf, x, y, grey_bm.width, grey_bm.height);
grey_show(true);
rb->button_get(true);
grey_release();
return PLUGIN_OK;
}