formike128x128x16.c

最新的FreeRTOS源代码

            {
                //
                // Get the next byte of image data.
                //
                ulByte = *pucData++;

                //
                // Loop through the pixels in this byte of image data.
                //
                for(; (lX0 < 8) && lCount; lX0++, lCount--)
                {
                    //
                    // Draw this pixel in the appropriate color.
                    //
                    lBPP = ((unsigned long *)pucPalette)[(ulByte >>
                                                          (7 - lX0)) & 1];
                    WriteData(lBPP >> 8);
                    WriteData(lBPP);
                }

                //
                // Start at the beginning of the next byte of image data.
                //
                lX0 = 0;
            }

            //
            // The image data has been drawn.
            //
            break;
        }

        //
        // The pixel data is in 4 bit per pixel format.
        //
        case 4:
        {
            //
            // Loop while there are more pixels to draw.  "Duff's device" is
            // used to jump into the middle of the loop if the first nibble of
            // the pixel data should not be used.  Duff's device makes use of
            // the fact that a case statement is legal anywhere within a
            // sub-block of a switch statement.  See
            // http://en.wikipedia.org/wiki/Duff's_device for detailed
            // information about Duff's device.
            //
            switch(lX0 & 1)
            {
                case 0:
                    while(lCount)
                    {
                        //
                        // Get the upper nibble of the next byte of pixel data
                        // and extract the corresponding entry from the
                        // palette.
                        //
                        ulByte = (*pucData >> 4) * 3;
                        ulByte = (*(unsigned long *)(pucPalette + ulByte) &
                                  0x00ffffff);

                        //
                        // Translate this palette entry and write it to the
                        // screen.
                        //
                        ulByte = DPYCOLORTRANSLATE(ulByte);
                        WriteData(ulByte >> 8);
                        WriteData(ulByte);

                        //
                        // Decrement the count of pixels to draw.
                        //
                        lCount--;

                        //
                        // See if there is another pixel to draw.
                        //
                        if(lCount)
                        {
                case 1:
                            //
                            // Get the lower nibble of the next byte of pixel
                            // data and extract the corresponding entry from
                            // the palette.
                            //
                            ulByte = (*pucData++ & 15) * 3;
                            ulByte = (*(unsigned long *)(pucPalette + ulByte) &
                                      0x00ffffff);

                            //
                            // Translate this palette entry and write it to the
                            // screen.
                            //
                            ulByte = DPYCOLORTRANSLATE(ulByte);
                            WriteData(ulByte >> 8);
                            WriteData(ulByte);

                            //
                            // Decrement the count of pixels to draw.
                            //
                            lCount--;
                        }
                    }
            }

            //
            // The image data has been drawn.
            //
            break;
        }

        //
        // The pixel data is in 8 bit per pixel format.
        //
        case 8:
        {
            //
            // Loop while there are more pixels to draw.
            //
            while(lCount--)
            {
                //
                // Get the next byte of pixel data and extract the
                // corresponding entry from the palette.
                //
                ulByte = *pucData++ * 3;
                ulByte = *(unsigned long *)(pucPalette + ulByte) & 0x00ffffff;

                //
                // Translate this palette entry and write it to the screen.
                //
                ulByte = DPYCOLORTRANSLATE(ulByte);
                WriteData(ulByte >> 8);
                WriteData(ulByte);
            }

            //
            // The image data has been drawn.
            //
            break;
        }
    }
}

//*****************************************************************************
//
//! Flushes any cached drawing operations.
//!
//! \param pvDisplayData is a pointer to the driver-specific data for this
//! display driver.
//!
//! This functions flushes any cached drawing operations to the display.  This
//! is useful when a local frame buffer is used for drawing operations, and the
//! flush would copy the local frame buffer to the display.  For the ST7637
//! driver, the flush is a no operation.
//!
//! \return None.
//
//*****************************************************************************
static void
Formike128x128x16Flush(void *pvDisplayData)
{
    //
    // There is nothing to be done.
    //
}

//*****************************************************************************
//
//! Draws a horizontal line.
//!
//! \param pvDisplayData is a pointer to the driver-specific data for this
//! display driver.
//! \param lX1 is the X coordinate of the start of the line.
//! \param lX2 is the X coordinate of the end of the line.
//! \param lY is the Y coordinate of the line.
//! \param ulValue is the color of the line.
//!
//! This function draws a horizontal line on the display.  The coordinates of
//! the line are assumed to be within the extents of the display.
//!
//! \return None.
//
//*****************************************************************************
static void
Formike128x128x16LineDrawH(void *pvDisplayData, long lX1, long lX2, long lY,
                           unsigned long ulValue)
{
    //
    // Set the extent of the line along the X axis.
    //
    WriteCommand(0x2a);
    WriteData(lX1);
    WriteData(lX2);

    //
    // Set the Y address of the display cursor.
    //
    WriteCommand(0x2b);
    WriteData(lY + 1);
    WriteData(lY + 1);

    //
    // Write the data RAM write command.
    //
    WriteCommand(0x2c);

    //
    // Loop through the pixels of this horizontal line.
    //
    while(lX1++ <= lX2)
    {
        //
        // Write the pixel value.
        //
        WriteData(ulValue >> 8);
        WriteData(ulValue);
    }
}

//*****************************************************************************
//
//! Draws a vertical line.
//!
//! \param pvDisplayData is a pointer to the driver-specific data for this
//! display driver.
//! \param lX is the X coordinate of the line.
//! \param lY1 is the Y coordinate of the start of the line.
//! \param lY2 is the Y coordinate of the end of the line.
//! \param ulValue is the color of the line.
//!
//! This function draws a vertical line on the display.  The coordinates of the
//! line are assumed to be within the extents of the display.
//!
//! \return None.
//
//*****************************************************************************
static void
Formike128x128x16LineDrawV(void *pvDisplayData, long lX, long lY1, long lY2,
                           unsigned long ulValue)
{
    //
    // Set the X address of the display cursor.
    //
    WriteCommand(0x2a);
    WriteData(lX);
    WriteData(lX);

    //
    // Set the extent of the line along the Y axis.
    //
    WriteCommand(0x2b);
    WriteData(lY1 + 1);
    WriteData(lY2 + 1);

    //
    // Write the data RAM write command.
    //
    WriteCommand(0x2c);

    //
    // Loop through the pixels of this vertical line.
    //
    while(lY1++ <= lY2)
    {
        //
        // Write the pixel value.
        //
        WriteData(ulValue >> 8);
        WriteData(ulValue);
    }
}

//*****************************************************************************
//
//! Fills a rectangle.
//!
//! \param pvDisplayData is a pointer to the driver-specific data for this
//! display driver.
//! \param pRect is a pointer to the structure describing the rectangle.
//! \param ulValue is the color of the rectangle.
//!
//! This function fills a rectangle on the display.  The coordinates of the
//! rectangle are assumed to be within the extents of the display, and the
//! rectangle specification is fully inclusive (i.e. both sXMin and sXMax are
//! drawn, along with sYMin and sYMax).
//!
//! \return None.
//
//*****************************************************************************
static void
Formike128x128x16RectFill(void *pvDisplayData, const tRectangle *pRect,
                          unsigned long ulValue)
{
    long lCount;

    //
    // Set the extent of the rectangle along the X axis.
    //
    WriteCommand(0x2a);
    WriteData(pRect->sXMin);
    WriteData(pRect->sXMax);

    //
    // Set the extent of the rectangle along the Y axis.
    //
    WriteCommand(0x2b);
    WriteData(pRect->sYMin + 1);
    WriteData(pRect->sYMax + 1);

    //
    // Write the data RAM write command.
    //
    WriteCommand(0x2c);

    //
    // Loop through the pixels in this rectangle.
    //
    for(lCount = ((pRect->sXMax - pRect->sXMin + 1) *
                  (pRect->sYMax - pRect->sYMin + 1)); lCount > 0; lCount--)
    {
        //
        // Write the pixel value.
        //
        WriteData(ulValue >> 8);
        WriteData(ulValue);
    }
}

//*****************************************************************************
//
//! Translates a 24-bit RGB color to a display driver-specific color.
//!
//! \param pvDisplayData is a pointer to the driver-specific data for this
//! display driver.
//! \param ulValue is the 24-bit RGB color.  The least-significant byte is the
//! blue channel, the next byte is the green channel, and the third byte is the
//! red channel.
//!
//! This function translates a 24-bit RGB color into a value that can be
//! written into the display's frame buffer in order to reproduce that color,
//! or the closest possible approximation of that color.
//!
//! \return Returns the display-driver specific color.
//
//*****************************************************************************
static unsigned long
Formike128x128x16ColorTranslate(void *pvDisplayData, unsigned long ulValue)
{
    //
    // Translate from a 24-bit RGB color to a 5-6-5 RGB color.
    //
    return(DPYCOLORTRANSLATE(ulValue));
}

//*****************************************************************************
//
//! The display structure that describes the driver for the Formike Electronic
//! KWH015C04-F01 CSTN panel with an ST7637 controller.
//
//*****************************************************************************
const tDisplay g_sFormike128x128x16 =
{
    sizeof(tDisplay),
    0,
    128,
    128,
    Formike128x128x16PixelDraw,
    Formike128x128x16PixelDrawMultiple,
    Formike128x128x16LineDrawH,
    Formike128x128x16LineDrawV,
    Formike128x128x16RectFill,
    Formike128x128x16ColorTranslate,
    Formike128x128x16Flush
};

//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
















/* FreeRTOS.org demo wrappers.  These are required so the prototypes for the
functions are the same as for the display drivers used by other evaluation
kits. */

static tContext sContext;

void vFormike128x128x16Clear( void )
{
const tRectangle xRectangle = { 0, 0, 127, 127 };

    GrContextForegroundSet( &sContext, ClrBlack );
    GrRectFill( &sContext, &xRectangle );
	GrContextForegroundSet(&sContext, ClrWhite);
}
/*-----------------------------------------------------------*/

void vFormike128x128x16StringDraw( const char *pcString, unsigned long lX, unsigned long lY, unsigned char ucColor )
{
	GrContextForegroundSet(&sContext, ClrWhite);
	GrStringDraw( &sContext, pcString, strlen( pcString ), lX, lY, false );
}
/*-----------------------------------------------------------*/

void vFormike128x128x16Init( unsigned long ul )
{
tRectangle rectScreen;
const unsigned char *pcAppName = "www.FreeRTOS.org";

	( void ) ul;
	
    Formike128x128x16Init();
    Formike128x128x16BacklightOn();
    GrContextInit(&sContext, &g_sFormike128x128x16);
    GrContextFontSet(&sContext, &g_sFontCmss12);
    rectScreen.sXMin = 0;

	/* Fill the screen with a black rectangle. */
    rectScreen.sYMin = 0;
    rectScreen.sXMax = g_sFormike128x128x16.usWidth - 1;
    rectScreen.sYMax = g_sFormike128x128x16.usHeight - 1;
    GrContextForegroundSet(&sContext, ClrBlack);
    GrRectFill(&sContext, &rectScreen);
}
/*-----------------------------------------------------------*/

void vFormike128x128x16ImageDraw( const unsigned char *pucImage, unsigned long ulX, unsigned long ulY, unsigned long ulWidth, unsigned long ulHeight )
{
	GrImageDraw( &sContext, pucImage, ( long ) ulX, ( long ) ulY);
}