Exemplo n.º 1
0
void bmp_drawTest(char * bmp_name, unsigned int x, unsigned int y)
{
    unsigned int i=0;
//    unsigned char * lookup_table = &bmp_lookup_table[0];
    unsigned long bmp_loc=0;
    unsigned int index;
    uint8_t nameLength;
    //uint8_t bmpNameLen = strlen(bmp_name);
    COLOR black = {0,0,0};
    COLOR white = {255,255,255};

    cli(); //disable interrupts

	bmp_loc = bmp_find(bmp_name);

    /* Bitmap not found
       error handling here */
#if 0
    if (bmp_loc == 0)
    {
        /* Display the not found placeholder */
        dispPutS(bmp_name,x,y,white,black);
        return;
    }
#endif

    unsigned char bmp_buff[DATAFLASH_PAGESIZE];

/* Get the width and height */
    dataflash_read_block(bmp_buff,bmp_loc,4);

    uint16_t width = (uint16_t)(bmp_buff[0]<<8) + bmp_buff[1];
    uint16_t height = (uint16_t)(bmp_buff[2]<<8) + bmp_buff[3];
    uint32_t length = (uint32_t)width * (uint32_t)height;
    uint16_t byteCnt=0;

    dispSetWindow(x,y,width-1,height);

/* Incremement the bmp pointer passed the width/height */
    bmp_loc+=4;
    dataflash_read_block(bmp_buff, bmp_loc, DATAFLASH_PAGESIZE);
    while (length--)
    {
        GraphicsColor.blue  =   bmp_buff[byteCnt];
        GraphicsColor.green =   bmp_buff[byteCnt+1];
        GraphicsColor.red   =   bmp_buff[byteCnt+2];
        dispPix();

        byteCnt+=3;

        if (byteCnt>=528)
        {
            bmp_loc+=528;
            dataflash_read_block(bmp_buff, bmp_loc, DATAFLASH_PAGESIZE);
            byteCnt=0;
        }
    }

    sei(); //enable interrupts
}
Exemplo n.º 2
0
//********************************************************
// A processing style image loading function.
// Returns image pointer to an external flash location 
PImage loadImage(char * fileName)
{

	/* Get the image page location */
	return (PImage)bmp_find(fileName);
}