//===============================================
//demo_1.h
#ifndef _VRE_APP_demo_1_
#define _VRE_APP_demo_1_
#endif
//===============================================
//demo_1.c
/* ============================================================================
* VRE demonstration application.
*
* Copyright (c) 2006-2009 Vogins Network Technology (China). All rights
* reserved.
*
* YOU MAY MODIFY OR DISTRIBUTE SOURCE CODE BELOW FOR PERSONAL OR
* COMMERCIAL PURPOSE UNDER THOSE AGGREMENTS:
*
* 1) VOGINS COPYRIGHT MUST BE KEPT IN REDISTRIBUTED SOURCE CODE OR
* BINARY FILE.
* 2) YOU CAN REUSE THOSE SOURCE CODE IN COMMERCIAL PURPOSE WITHOUT
* VOGINS COMFIRMATION.
* 3) THIS PROGRAM JUST USE TO DEMONSTRATE HOW TO WRITE A VRE BASED
* APPLICATION. VOGINS WON'T MAKE ANY GUARANTEE THAT IT COULD BE
* USED IN PRODUCTION ENVIRONMENT.
* ========================================================================= */
/*============================================================================
* GDI Sample show the VRE usage of GDI interface
*
* Copyright (c) 2006 - 2009 Vogins Network Technology (China). All rights reserved.
* By Steven Fang Feb. 1, 2009 V1.0
*============================================================================*/
#include "vmsys.h"
#include "vmio.h"
#include "vmgraph.h"
#include "vmchset.h"
#include "vmstdlib.h"
#include "vmres.h"
#include "vmlog.h"
#include "vmstdlib.h"
#include <stdio.h>
/* ---------------------------------------------------------------------------
* global variables
* ------------------------------------------------------------------------ */
VMINT layer_hdl[2]; //layer handle array
/* ---------------------------------------------------------------------------
* local variables
* ------------------------------------------------------------------------ */
/*
* system events
*/
void handle_sysevt(VMINT message, VMINT param);
/*
* key events
*/
void handle_keyevt(VMINT event, VMINT keycode);
/*
* pen events
*/
void handle_penevt(VMINT event, VMINT x, VMINT y);
/*
* demo
*/
static void draw(void);
static void draw_image();
static void draw_info();
/**
* entry
*/
void vm_main(void) {
vm_reg_sysevt_callback(handle_sysevt);
vm_reg_keyboard_callback(handle_keyevt);
vm_reg_pen_callback(handle_penevt);
}
void handle_sysevt(VMINT message, VMINT param) {
switch (message) {
case VM_MSG_CREATE:
case VM_MSG_ACTIVE:
/* cerate base layer that has same size as the screen*/
layer_hdl[0] = vm_graphic_create_layer(0, 0,
vm_graphic_get_screen_width(),
vm_graphic_get_screen_height(), -1);
/* cerate fast layer */
layer_hdl[1] = vm_graphic_create_layer(0, 0,
vm_graphic_get_screen_width(),
vm_graphic_get_screen_height(), VM_COLOR_RED);
/* set clip area */
vm_graphic_set_clip(0, 0,
vm_graphic_get_screen_width(),
vm_graphic_get_screen_height());
break;
case VM_MSG_PAINT:
draw();
break;
case VM_MSG_INACTIVE:
vm_graphic_delete_layer(layer_hdl[1]);
vm_graphic_delete_layer(layer_hdl[0]); //must delete other layer before delete base layer
break;
case VM_MSG_QUIT:
vm_graphic_delete_layer(layer_hdl[1]);
vm_graphic_delete_layer(layer_hdl[0]); //must delete other layer before delete base layer
vm_exit_app();
break;
}
}
void handle_keyevt(VMINT event, VMINT keycode) {
/* press any key to exit program */
vm_graphic_delete_layer(layer_hdl[0]);
vm_exit_app();
}
void handle_penevt(VMINT event, VMINT x, VMINT y){
vm_graphic_delete_layer(layer_hdl[0]);
vm_exit_app();
}
static void draw(void) {
draw_image();
draw_info();
vm_graphic_flush_layer(layer_hdl,2);
}
/* draw image */
static void draw_image()
{
VMUINT8 * res = NULL; //raw image data
VMINT gif_size = -100; //image size
VMINT gif_hdl=-100; //image handle
VMUINT8 *gif_buf=NULL; //decoded image buffer
VMINT gif_width =-100; //image width
VMINT gif_height=-100; //image height
VMUINT8 * buf=NULL; //base layer buffer
res = vm_load_resource("logo_vre.gif", &gif_size); //load image data from vxp file
if (res == NULL)
handle_sysevt(VM_MSG_QUIT, 1); //load resource failed, exit program
gif_hdl = vm_graphic_load_image(res,gif_size); //decode image data
if (gif_hdl < 0)
handle_sysevt(VM_MSG_QUIT, 1); //decode failed, exit program
vm_free(res); //free raw image data
gif_buf = vm_graphic_get_canvas_buffer(gif_hdl); //get decoded image buffer
gif_width = vm_graphic_get_img_property(gif_hdl,1)->width; //get image width
gif_height = vm_graphic_get_img_property(gif_hdl,1)->height; //get image height
buf = vm_graphic_get_layer_buffer(layer_hdl[0]); //get base layer buffer
vm_graphic_fill_rect(buf, 0, 0, vm_graphic_get_screen_width(),
vm_graphic_get_screen_height(), VM_COLOR_WHITE, VM_COLOR_GREEN); //draw background
vm_graphic_blt(buf,0,10,gif_buf,0,0,gif_width,gif_height,1); //draw first frame of image
vm_graphic_blt(buf,0,40,gif_buf,0,0,gif_width,gif_height,2); //draw second frame of image
vm_graphic_release_canvas(gif_hdl); //release decoded image buffer
}
static void draw_info()
{
VMUINT8 * buf=NULL;
VMCHAR str[60]={0};
VMWCHAR wstr[60]={0};
//=========
info
VMINT x;
VMINT y;
VMINT width;
VMINT height;
VMUINT16 color =0;
VMINT gif_hdl;
VMUINT8 * gif_buf=NULL;
sprintf(str,"max support %d layer", vm_graphic_get_layer_count()); //Obtain maximum numbers of layers supported by the target platform
vm_ascii_to_ucs2(wstr, 120, str);
buf = vm_graphic_get_layer_buffer(layer_hdl[1]); //get fast layer buffer
vm_graphic_fill_rect(buf, 0, 40, vm_graphic_get_screen_width()-50,
vm_graphic_get_screen_height()-50, VM_COLOR_WHITE, VM_COLOR_BLUE);
vm_graphic_textout(buf,0,80,wstr,wstrlen(wstr),VM_COLOR_GREEN);
vm_graphic_get_layer_position(layer_hdl[1],&x,&y,&width,&height); //get fast layer position and size
sprintf(str,"fast layer position X＝%d,Y=%d", x,y);
vm_ascii_to_ucs2(wstr,120,str);
vm_graphic_textout(buf,0,100,wstr,vm_wstrlen(wstr),VM_COLOR_GREEN);
sprintf(str,"fast layer size W=%d,H＝%d",width,height);
vm_ascii_to_ucs2(wstr,120,str);
vm_graphic_textout(buf,0,120,wstr,vm_wstrlen(wstr),VM_COLOR_GREEN);
color=vm_graphic_get_pixel(buf, 100, 100); //get the color of specified point on fast layer
sprintf(str,"fast layer 100.100 color: 0x%x",color);
vm_ascii_to_ucs2(wstr,120,str);
vm_graphic_textout(buf,0,140,wstr,vm_wstrlen(wstr),VM_COLOR_GREEN);
gif_hdl=vm_graphic_create_canvas(100,100); //create canvas
gif_buf= vm_graphic_get_canvas_buffer(gif_hdl); //get canvas buffer
//vm_memset(str,0,60);
sprintf(str,"canvas");
// vm_memset(wstr,0,120);
vm_ascii_to_ucs2(wstr,120,str);
//vm_graphic_textout(buf,10,2,wstr,wstrlen(wstr),VM_COLOR_WHITE);
vm_graphic_fill_rect(gif_buf, 0, 0, 100,100, VM_COLOR_WHITE, VM_COLOR_RED); //fill rect on canvas
vm_graphic_textout(gif_buf,10,2,wstr,wstrlen(wstr),VM_COLOR_WHITE); //write character on canvas
vm_graphic_blt_ex(buf,20,190,gif_buf,0,0,100,100,1,150); // semi-transparent effect
vm_graphic_set_layer_opacity(layer_hdl[1],50); //set opacity of fast layer
}
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