6aa36c66a3
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17001 a1c6a512-1295-4272-9138-f99709370657
150 lines
4.7 KiB
C
150 lines
4.7 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) 2007 Jonas Hurrelmann
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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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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/* Resizing test plugin. Loads /test.bmp (max 100x100) and displays a resized
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* version. Use the scrollwheel or the left/right keys to change the size of
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* the resizded version.
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*/
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#include "plugin.h"
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#include "pluginlib_actions.h"
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#include "bmp.h"
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PLUGIN_HEADER
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static struct plugin_api* rb;
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const struct button_mapping *plugin_contexts[]
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= {generic_actions, generic_directions};
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#define NB_ACTION_CONTEXTS sizeof(plugin_contexts)/sizeof(plugin_contexts[0])
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/* Key assignement */
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#define SIZE_INCREASE PLA_UP
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#define SIZE_INCREASE_REPEAT PLA_UP_REPEAT
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#define SIZE_DECREASE PLA_DOWN
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#define SIZE_DECREASE_REPEAT PLA_DOWN_REPEAT
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#define WIDTH_INCREASE PLA_RIGHT
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#define WIDTH_INCREASE_REPEAT PLA_RIGHT_REPEAT
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#define WIDTH_DECREASE PLA_LEFT
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#define WIDTH_DECREASE_REPEAT PLA_LEFT_REPEAT
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#define BUTTON_QUIT PLA_QUIT
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#define CHANGE_MODE PLA_MENU
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#define MAX_OUTPUT_WIDTH LCD_WIDTH
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#define MAX_OUTPUT_HEIGHT LCD_HEIGHT
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static fb_data *b;
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static struct bitmap input_bmp;
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static struct bitmap output_bmp;
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static fb_data input_bmp_data[200*200];
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static fb_data output_bmp_data[MAX_OUTPUT_WIDTH*MAX_OUTPUT_HEIGHT];
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/* this is the plugin entry point */
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enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
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{
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(void)parameter;
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rb = api;
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b = rb->lcd_framebuffer;
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rb->lcd_set_background(LCD_RGBPACK(0,0,0));
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rb->lcd_clear_display(); // TODO: Optimizes this by e.g. invalidating rects
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input_bmp.data = (char*)input_bmp_data;
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output_bmp.data = (char*)output_bmp_data;
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int ret = rb->read_bmp_file("/test.bmp", &input_bmp, sizeof(input_bmp_data),
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FORMAT_NATIVE);
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if (ret < 0) {
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rb->splash(HZ, "Could not load /test.bmp");
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return PLUGIN_ERROR;
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}
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int button;
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output_bmp.width = 50;
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output_bmp.height = 50;
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DEBUGF("input_bmp_data starts at %p\n", input_bmp_data);
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DEBUGF("output_bmp_data starts at %p\n", output_bmp_data);
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int scale_algorithm = 0;
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while(1) {
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rb->lcd_clear_display();
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rb->lcd_bitmap(input_bmp_data, 0, 0, input_bmp.width, input_bmp.height);
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switch ( scale_algorithm ) {
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case 0:
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smooth_resize_bitmap(&input_bmp, &output_bmp);
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rb->lcd_putsxy(0,0,"smooth_resize_bitmap");
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break;
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case 1:
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simple_resize_bitmap(&input_bmp, &output_bmp);
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rb->lcd_putsxy(0,0,"simple_resize_bitmap");
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break;
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}
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rb->lcd_bitmap(output_bmp_data, 0, 100, output_bmp.width,
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output_bmp.height);
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rb->lcd_update();
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button = pluginlib_getaction(rb, HZ,
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plugin_contexts, NB_ACTION_CONTEXTS);
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switch (button) {
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case BUTTON_QUIT:
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return PLUGIN_OK;
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case SIZE_INCREASE:
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case SIZE_INCREASE_REPEAT:
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if (output_bmp.width < MAX_OUTPUT_WIDTH - 2)
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output_bmp.width += 2;
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if (output_bmp.height < MAX_OUTPUT_HEIGHT - 2)
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output_bmp.height += 2;
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break;
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case SIZE_DECREASE:
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case SIZE_DECREASE_REPEAT:
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if (output_bmp.width > 2) output_bmp.width -= 2;
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if (output_bmp.height > 2) output_bmp.height -= 2;
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break;
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case WIDTH_INCREASE:
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case WIDTH_INCREASE_REPEAT:
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if (output_bmp.width < MAX_OUTPUT_WIDTH - 2)
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output_bmp.width += 2;
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break;
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case WIDTH_DECREASE:
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case WIDTH_DECREASE_REPEAT:
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if (output_bmp.width > 2) output_bmp.width -= 2;
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break;
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case CHANGE_MODE:
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scale_algorithm = (scale_algorithm+1)%2;
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break;
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}
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}
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return PLUGIN_OK;
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}
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