main.cpp

00001 #include "mbed.h"
00002 #include "LCD_DISCO_F429ZI.h"
00003 #include "stlogo.h"
00004 
00005 /**
00006   * @brief  Creates uint32_t ARGB color variable from separate uint8_t values
00007   * @param  a: Alpha channel
00008   * @param  r: Red color value
00009   * @param  g: Green color value
00010   * @param  b: Blue color value
00011   * @retval Color value bytes combined in uint32_t
00012 */
00013 uint32_t colorFromSeparateValues(uint8_t a,uint8_t r,uint8_t g, uint8_t b);
00014 
00015 LCD_DISCO_F429ZI lcd;
00016 
00017 int main(){
00018     uint32_t xSize = lcd.GetXSize();
00019     uint32_t ySize = lcd.GetYSize();
00020     
00021     lcd.Clear(LCD_COLOR_BLACK);
00022     lcd.SelectLayer(0);
00023     lcd.DrawBitmap(xSize/2 - 30,ySize/2 - 20,stlogo);
00024     lcd.SelectLayer(1);
00025     lcd.SetTextColor(LCD_COLOR_BLACK);
00026     lcd.FillRect(0,0,xSize, ySize);
00027     lcd.SelectLayer(0);
00028     
00029     uint8_t procIdentifier = 0;
00030     uint8_t frontLayerTransparency = 0x00;
00031     
00032     while(1){
00033         if(procIdentifier % 2) {
00034             --frontLayerTransparency;
00035         }
00036         else {
00037             ++frontLayerTransparency;
00038         }
00039         lcd.SetTransparency(1, frontLayerTransparency);
00040         
00041         if(frontLayerTransparency == 0x00 || frontLayerTransparency == 0xff){
00042             ++procIdentifier;
00043             procIdentifier = procIdentifier % 4;
00044             
00045             if(procIdentifier == 0){
00046                 lcd.Clear(LCD_COLOR_BLACK);
00047                 lcd.DrawBitmap(xSize/2 - 30,ySize/2 - 20,stlogo);
00048             } else if(procIdentifier == 2){
00049                 lcd.SetTextColor(LCD_COLOR_GREEN);
00050                 lcd.FillRect(0,0,xSize, ySize);
00051             }
00052         }
00053         wait_ms(5);
00054     }
00055 }
00056 
00057 uint32_t colorFromSeparateValues(uint8_t a,uint8_t r,uint8_t g, uint8_t b) {
00058     uint32_t res = a;
00059     res = (res >> 8) + r;
00060     res = (res >> 8) + g;
00061     res = (res >> 8) + b;
00062     return res;
00063 }