C++ LcdPanel::clearScreen方法代码示例

    void rectTest() {

      uint32_t i,start;
      Rectangle rc;

      prompt("Rectangle test");

      for(i=0,start=MillisecondTimer::millis();MillisecondTimer::millis()-start<5000;i++) {

        rc.X=(rand() % _gl->getXmax()/2);
        rc.Y=(rand() % _gl->getYmax()/2);
        rc.Width=rand() % (_gl->getXmax()-rc.X);
        rc.Height=rand() % (_gl->getYmax()-rc.Y);

        _gl->setForeground(rand());
        _gl->fillRectangle(rc);
      }

      _gl->clearScreen();

      for(i=0,start=MillisecondTimer::millis();MillisecondTimer::millis()-start<5000;i++) {

        rc.X=(rand() % _gl->getXmax()/2);
        rc.Y=(rand() % _gl->getYmax()/2);
        rc.Width=rand() % (_gl->getXmax()-rc.X);
        rc.Height=rand() % (_gl->getYmax()-rc.Y);

        _gl->setForeground(rand());
        _gl->drawRectangle(rc);

        if(i % 1000 ==0)
          _gl->clearScreen();
      }
    }

    void rectTest() {

      int i;
      Rectangle rc;

      prompt("Rectangle test");

      for(i=0;i<1500;i++) {

        rc.X=(rand() % _gl->getXmax()/2);
        rc.Y=(rand() % _gl->getXmax()/2);
        rc.Width=rand() % (_gl->getXmax()-rc.X);
        rc.Height=rand() % (_gl->getYmax()-rc.Y);

        _gl->setForeground(rand());
        _gl->fillRectangle(rc);
      }

      _gl->clearScreen();

      for(i=0;i<10000;i++) {

        rc.X=(rand() % _gl->getXmax()/2);
        rc.Y=(rand() % _gl->getXmax()/2);
        rc.Width=rand() % (_gl->getXmax()-rc.X);
        rc.Height=rand() % (_gl->getYmax()-rc.Y);

        _gl->setForeground(rand());
        _gl->drawRectangle(rc);

        if(i % 1000 ==0)
          _gl->clearScreen();
      }
    }

    void ellipseTest() {

      int16_t i;
      Point p;
      Size s;
      uint32_t start;

      prompt("Ellipse test");
      _gl->setBackground(0);

      for(start=MillisecondTimer::millis();MillisecondTimer::millis()-start<5000;) {

        p.X=_gl->getXmax()/4+(rand() % (_gl->getXmax()/2));
        p.Y=_gl->getYmax()/4+(rand() % (_gl->getYmax()/2));

        if(p.X<_gl->getXmax()/2)
          s.Width=rand() % p.X;
        else
          s.Width=rand() % (_gl->getXmax()-p.X);

        if(p.Y<_gl->getYmax()/2)
          s.Height=rand() % p.Y;
        else
          s.Height=rand() % (_gl->getYmax()-p.Y);

        _gl->setForeground(rand());
        _gl->fillEllipse(p,s);
      }

      _gl->clearScreen();

      for(i=0,start=MillisecondTimer::millis();MillisecondTimer::millis()-start<5000;i++) {

        p.X=_gl->getXmax()/4+(rand() % (_gl->getXmax()/2));
        p.Y=_gl->getYmax()/4+(rand() % (_gl->getYmax()/2));

        if(p.X<_gl->getXmax()/2)
          s.Width=rand() % p.X;
        else
          s.Width=rand() % (_gl->getXmax()-p.X);

        if(p.Y<_gl->getYmax()/2)
          s.Height=rand() % p.Y;
        else
          s.Height=rand() % (_gl->getYmax()-p.Y);

        if(s.Height>0 && s.Width>0 && p.X+s.Width<_gl->getXmax() && p.Y+s.Height<_gl->getYmax()) {
          _gl->setForeground(rand());
          _gl->drawEllipse(p,s);
        }

        if(i % 1000==0)
          _gl->clearScreen();
      }
    }

    void prompt(const char *prompt) {

      _gl->setBackground(ColourNames::BLACK);
      _gl->clearScreen();

      _gl->setForeground(ColourNames::GHOSTWHITE);
      *_gl << Point(0,0) << prompt;

      MillisecondTimer::delay(2000);
      _gl->clearScreen();
    }

    void drawCompressedBitmap(uint8_t *pixels,uint32_t size,uint16_t width,uint16_t height,bool useDma,DmaFsmcLcdMemoryCopyFeature<LcdAccessMode>& dma) {

      _gl->setBackground(ColourNames::WHITE);
      _gl->clearScreen();

      LinearBufferInputOutputStream compressedData(pixels,size);
      LzgDecompressionStream decompressor(compressedData,size);

      if(useDma) {
        _gl->drawBitmap(
            Rectangle(((_gl->getXmax()+1)-width)/2,
                ((_gl->getYmax()+1)-height)/2,
                width,height),
                decompressor,
                dma);
      }
      else {
        _gl->drawBitmap(
            Rectangle(((_gl->getXmax()+1)-width)/2,
                ((_gl->getYmax()+1)-height)/2,
                width,height),
                decompressor);
      }

      MillisecondTimer::delay(3000);
    }

    void rectTest() {

      Rectangle rc;
      uint32_t start;

      prompt("Rectangle test");

      for(start=MillisecondTimer::millis();MillisecondTimer::millis()-start<5000;) {

        rc.X=(rand() % _gl->getXmax()/2);
        rc.Y=(rand() % _gl->getXmax()/2);
        rc.Width=rand() % (_gl->getXmax()-rc.X);
        rc.Height=rand() % (_gl->getYmax()-rc.Y);

        if(rc.Width>0 && rc.Height>0) {
          _gl->setForeground(rand());
          _gl->fillRectangle(rc);
        }
      }

      _gl->clearScreen();

      for(start=MillisecondTimer::millis();MillisecondTimer::millis()-start<5000;) {

        rc.X=(rand() % _gl->getXmax()/2);
        rc.Y=(rand() % _gl->getXmax()/2);
        rc.Width=rand() % (_gl->getXmax()-rc.X);
        rc.Height=rand() % (_gl->getYmax()-rc.Y);

        _gl->setForeground(rand());
        _gl->drawRectangle(rc);
      }
    }

    void run() {

      // reset is on PE1 and RS (D/CX) is on PD11

      GpioE<DefaultDigitalOutputFeature<1> > pe;
      GpioD<DefaultFsmcAlternateFunctionFeature<11>> pd;

      // set up the FSMC with RS=A16 (PD11). The 60Mhz FSMC bus on the F4 needs
      // slower timings.

#if defined(STM32PLUS_F1)
      Fsmc8080LcdTiming fsmcTiming(0,2);
#else
      Fsmc8080LcdTiming fsmcTiming(2,10);
#endif

      _accessMode=new LcdAccessMode(fsmcTiming,16,pe[1]);

      // declare a panel

      _gl=new LcdPanel(*_accessMode);

      // apply gamma settings

      ILI9481Gamma gamma(0,0xf3,0,0xbc,0x50,0x1f,0,7,0x7f,0x7,0xf,0);
      _gl->applyGamma(gamma);

      // clear to black while the lights are out

      _gl->setBackground(0);
      _gl->clearScreen();

      // create the backlight on timer4, channel2 (PD13)

      DefaultBacklight backlight;

      // fade up to 100% in 4ms steps

      backlight.fadeTo(100,4);

      // create a font

      _font=new Font_VOLTER__28GOLDFISH_299;
      *_gl << *_font;

      for(;;) {
        jpegTest();
        lzgTest();
        basicColoursTest();
        textTest();
        scrollTest();
        ellipseTest();
        gradientTest();
        rectTest();
        lineTest();
        clearTest();
        sleepTest();
      }
    }

    void run() {

      // reset is on PE1 and RS (D/CX) is on PE3

      GpioE<DefaultDigitalOutputFeature<1>,
            DefaultFsmcAlternateFunctionFeature<3> > pe;

      // set up the FSMC timing. these numbers (particularly the data setup time) are dependent on
      // both the FSMC bus speed and the panel timing parameters.

      Fsmc8080LcdTiming fsmcTiming(2,4);

      // set up the FSMC with RS=A19 (PE3)

      _accessMode=new LcdAccessMode(fsmcTiming,19,pe[1]);
      _gl=new LcdPanel(*_accessMode);

      // apply gamma settings

      ST7783Gamma gamma(0,0x0107,0,0x0203,0x0402,0,0x0207,0,0x0203,0x0403);
      _gl->applyGamma(gamma);

      // clear to black while the lights are out

      _gl->setBackground(0);
      _gl->clearScreen();

      // create the backlight on timer4, channel2 (PD13)

      DefaultBacklight backlight;

      // fade up to 100% in 4ms steps

      backlight.fadeTo(100,4);

      // Create a font. A wide range of sample fonts are available. See the
      // "lib/include/display/graphic/fonts" directory for a full list and
      // you can always download and convert your own using the FontConv utility.

      _font=new Font_VOLTER__28GOLDFISH_299;
      *_gl << *_font;

      _gl->setForeground(ColourNames::RED);
      _gl->fillRectangle(Rectangle(10,20,30,40));

      for(;;) {
        jpegTest();
        lzgTest();
        basicColoursTest();
        textTest();
        ellipseTest();
        gradientTest();
        rectTest();
        lineTest();
        clearTest();
        sleepTest();
      }
    }

    void clearTest() {

      uint32_t start;

      prompt("Clear screen test");

      for(start=MillisecondTimer::millis();MillisecondTimer::millis()-start<5000;) {
        _gl->setBackground(rand());
        _gl->clearScreen();
      }
    }

    void run() {

      // reset is on PE1 and RS (D/CX) is on PD11

      GpioE<DefaultDigitalOutputFeature<1> > pe;
      GpioD<DefaultFsmcAlternateFunctionFeature<11> > pd;

      // set up the FSMC timing. these numbers (particularly the data setup time) are dependent on
      // both the FSMC bus speed and the panel timing parameters.

      Fsmc8080LcdTiming fsmcTiming(0,3);

      // set up the FSMC with RS=A16 (PD11)

      _accessMode=new LcdAccessMode(fsmcTiming,16,pe[1]);
      _gl=new LcdPanel(*_accessMode);

      // clear to black while the lights are out

      _gl->setBackground(0);
      _gl->clearScreen();

      // create the backlight on timer4, channel2 (PD13)

      DefaultBacklight backlight;

      // fade up to 100% in 4ms steps

      backlight.fadeTo(100,4);

      // create a font

      _font=new Font_VOLTER__28GOLDFISH_299;
      *_gl << *_font;

      _gl->setForeground(ColourNames::RED);
      _gl->fillRectangle(Rectangle(10,20,5,10));

      for(;;) {
        jpegTest();
        lzgTest();
        basicColoursTest();
        textTest();
        scrollTest();
        ellipseTest();
        gradientTest();
        rectTest();
        lineTest();
        clearTest();
        sleepTest();
      }
    }

    void error(const std::string& str) {

      _tft->setBackground(ColourNames::WHITE);
      _tft->setForeground(ColourNames::BLACK);
      _tft->clearScreen();

      LinearBufferInputOutputStream compressedData((uint8_t *)&ErrorPixels,(uint32_t)&ErrorPixelsSize);
      _tft->drawJpeg(Rectangle(95,135,50,50),compressedData);

      *_tft << Point(2,2) << str.c_str();

      errorRestart();
    }

    void run() {

      // declare the access mode

      LcdAccessMode accessMode;

      // declare a panel

      _gl=new LcdPanel(accessMode);

      // apply the gamma curve. Note that gammas are panel specific. This curve is appropriate
      // to a replacement (non-original) panel obtained from ebay.

      uint8_t levels[13]={ 0xe,0,1,1,0,0,0,0,0,0,3,4,0 };
      R61523Gamma gamma(levels);
      _gl->applyGamma(gamma);

      // clear to black while the lights are out

      _gl->setBackground(0);
      _gl->clearScreen();

      // create the backlight using default template parameters

      _backlight=new LcdBacklight(accessMode);

      // fade up the backlight to 100% using the hardware to do the smooth fade

      _backlight->setPercentage(100);

      // A wide range of sample fonts are available. See the "lib/include/display/graphic/fonts"
      // directory for a full list and you can always download and convert your own using the
      // FontConv utility.

      *_gl << _font;

      for(;;) {
        textTest();
        lzgTest();
        basicColoursTest();
        backlightTest();
        gradientTest();
        rectTest();
        lineTest();
        ellipseTest();
        clearTest();
        sleepTest();
      }
    }

    void clearTest() {

      int i;
      uint32_t start;

      prompt("Clear screen test");

      for(i=0;i<200;i++) {
        _gl->setBackground(rand());

        start=MillisecondTimer::millis();
        _gl->clearScreen();
        stopTimer(" to clear",MillisecondTimer::millis()-start);
      }
    }

    void drawCompressedBitmap(uint8_t *pixels,uint32_t size,uint16_t width,uint16_t height) {

      _gl->setBackground(ColourNames::WHITE);
      _gl->clearScreen();

      LinearBufferInputOutputStream compressedData(pixels,size);
      LzgDecompressionStream decompressor(compressedData,size);

      _gl->drawBitmap(
          Rectangle((_gl->getWidth()-width)/2,
              (_gl->getHeight()-height)/2,
              width,height),
              decompressor);

      MillisecondTimer::delay(3000);
    }

    void sleepTest() {

      prompt("Sleep test");

      // go to sleep

      *_gl << Point::Origin << "Sleeping now...";
      MillisecondTimer::delay(1000);
      _gl->sleep();
      MillisecondTimer::delay(3000);

      // wake up

      _gl->wake();
      _gl->clearScreen();
      *_gl << Point::Origin << "Woken up again...";
      MillisecondTimer::delay(3000);
    }