windows-server-2003/drivers/wdm/capture/codec/tsbyuv/xlate.c

/*
 * Microsoft YUV Codec -yuv411 -> rgb conversion functions
 *
 * Copyright (c) Microsoft Corporation 1993
 * All Rights Reserved
 *
 */
/*
 * for TOSHIBA Pistachio yuv12 -> rgb conversion functions
 *
 * Programed by Y.Kasai 05/27/97
 *
 * supported type:
 *           YUV411 (for Bravado)
 *           YUV422 (for Spigot)
 *           YUV12  (for Pistachio)
 *           YUV9   (for Pistachio)
 */

#include <windows.h>
#include <windowsx.h>

#include "msyuv.h"

/*
 * This module provides translation from YUV into RGB. It translates
 * from 8-bit YUV 4:2:2 (as provided by the Spigot video capture driver)
 * or 7-bit YUV 4:1:1 (as provided by the Bravado driver) into 16-bit RGB555
 * or RGB565. All versions use a look-up table built using YUVToRGB555
 * or YUVToRGB565
 */



#define RANGE(x, lo, hi)        max(lo, min(hi, x))

/*
 * Convert a YUV colour into a 15-bit RGB colour.
 *
 * The input Y is in the range 16..235; the input U and V components
 * are in the range -128..+127. The conversion equations for this are
 * (according to CCIR 601):
 *
 *      R = Y + 1.371 V
 *      G = Y - 0.698 V - 0.336 U
 *      B = Y + 1.732 U
 *
 * To avoid floating point, we scale all values by 1024.
 *
 * The resulting RGB values are in the range 16..235: we truncate these to
 * 5 bits each. and return a WORD containing 5-bits each for R, G and B
 * with bit 15 set to 0.
 */
WORD
YUVToRGB555(int y, int u, int v)
{
    int ScaledY = RANGE(y, 16, 235) * 1024;
    int red, green, blue;

    red = RANGE((ScaledY + (1404 * v)) / 1024, 0, 255);
    green = RANGE( (ScaledY - (715 * v) - (344 * u)) / 1024, 0, 255);
    blue = RANGE( (ScaledY + (1774 * u)) / 1024, 0, 255);

    return (WORD) (((red & 0xf8) << 7) | ((green & 0xf8) << 2) | ((blue & 0xf8) >>3) );
}


// same as above but converts to RGB565 instead
WORD
YUVToRGB565(int y, int u, int v)
{
    int ScaledY = RANGE(y, 16, 235) * 1024;
    int red, green, blue;

    red = RANGE((ScaledY + (1404 * v)) / 1024, 0, 255);
    green = RANGE( (ScaledY - (715 * v) - (344 * u)) / 1024, 0, 255);
    blue = RANGE( (ScaledY + (1774 * u)) / 1024, 0, 255);

    return (WORD) (((red & 0xf8) << 8) | ((green & 0xfc) << 3) | ((blue & 0xf8) >>3) );
}


#ifdef  TOSHIBA
#ifdef  COLOR_MODIFY
/*
 * TOSHIBA Y.Kasai
 * for Pistachio.
 *
 * Convert a YUV colour into a 15-bit RGB colour.
 *
 * The input Y is in the range 0..255; the input U and V components
 * are in the same range 0..255. The conversion equations for this are
 * (according to CCIR 601):
 *
 *      R = 1.1644Y + 1.5976 V - 223.0089
 *      G = 1.1644Y - 0.8133 V - 0.3921 U + 135.6523
 *      B = 1.1644Y + 2.0184 U - 276.9814
 *
 * To avoid floating point, we scale all values by 1024.
 *
 *  1024R = 1192Y + 1635V - 228361
 *  1024G = 1192Y - 833V - 402U + 138908
 *  1024B = 1192Y + 2067U - 283629
 *
 */
BYTE
TosYVToR(int y, int v)
{
    int ScaledY = y * 1192;
    int red;

    red = RANGE((ScaledY + (1635 * v) -  228361) / 1024, 0, 255);

    return (BYTE) (red);
}


BYTE
TosYUToB(int y, int u)
{
    int ScaledY = y * 1192;
    int blue;

    blue = RANGE( (ScaledY + (2067 * u) - 283629) / 1024, 0, 255);

    return (BYTE) (blue);
}

#else //COLOR_MODIFY
/*
 * TOSHIBA Y.Kasai
 * for Pistachio.
 *
 * Convert a YUV colour into a 15-bit RGB colour.
 *
 * The input Y is in the range 0..255; the input U and V components
 * are in the same range 0..255. The conversion equations for this are
 * (according to CCIR 601):
 *
 *      R = 1.1644Y + 1.5976 V - 223.0089
 *      G = 1.1644Y - 0.8133 V - 0.3921 U + 135.6523
 *      B = 1.1644Y + 2.0184 U - 276.9814
 *
 * To avoid floating point, we scale all values by 1024.
 *
 *  1024R = 1192Y + 1635V - 228361
 *  1024G = 1192Y - 833V - 402U + 138908
 *  1024B = 1192Y + 2067U - 283629
 *
 * The resulting RGB values are in the range 0..255: we truncate these to
 * 5 bits each. and return a WORD containing 5-bits each for R, G and B
 * with bit 15 set to 0.
 */
WORD
TosYUVToRGB555(int y, int u, int v)
{
    int ScaledY = y * 1192;
    int red, green, blue;

    red = RANGE((ScaledY + (1635 * v) -  228361) / 1024, 0, 255);
    green = RANGE( (ScaledY - (833 * v) - (402 * u) + 138908) / 1024, 0, 255);
    blue = RANGE( (ScaledY + (2067 * u) - 283629) / 1024, 0, 255);

    return (WORD) (((red & 0xf8) << 7) | ((green & 0xf8) << 2) | ((blue & 0xf8) >>3) );
}


// same as above but converts to RGB565 instead
WORD
TosYUVToRGB565(int y, int u, int v)
{
    int ScaledY = y * 1192;
    int red, green, blue;

    red = RANGE((ScaledY + (1635 * v) -  228361) / 1024, 0, 255);
    green = RANGE( (ScaledY - (833 * v) - (402 * u) + 138908) / 1024, 0, 255);
    blue = RANGE( (ScaledY + (2067 * u) - 283629) / 1024, 0, 255);

    return (WORD) (((red & 0xf8) << 8) | ((green & 0xfc) << 3) | ((blue & 0xf8) >>3) );
}
#endif//COLOR_MODIFY
#endif//TOSHIBA



/* --- YUV 4:1:1 support ------------------------------------------ */




/*
 * the input data is in YUV411 format. There is one 7 bit Luma sample
 * per pixel, and 1 each 7-bit U and V sample averaged over 4 pixels,
 * in the following layout:
 *
 *              15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0
 * Word 0       u6 u5 v6 v5             y6 y5 y4 y3 y2 y1 y0
 *
 * Word 1       u4 u3 v4 v3             y6 y5 y4 y3 y2 y1 y0
 *
 * Word 2       u2 u1 v2 v1             y6 y5 y4 y3 y2 y1 y0
 *
 * Word 3       u0    v0                y6 y5 y4 y3 y2 y1 y0
 *
 * The 7-bit y values are unsigned (0..127), whereas the 7-bit
 * u and V values are signed (-64..+63).
 *
 *
 * For RGB: we truncate the YUV into a 15-bit format and use a prepared
 *         lookup table to convert the 15-bit YUV into a 15- or 16-bit RGB value.
 *
 * The (64 kbyte) rgb555 lookup table is built by BuildYUVToRGB555.
 *
 */


/*
 * the YUV xlate tables use 5-bits per component with y in the ms bits, and
 * v in the ls bits. To convert from the above layout, look up the nibbles
 * containing the chroma bits in these tables and or together the result to
 * get a word with a 5-bit V component in bits 0..4, and a 5-bit
 * U component in bits 5..9. Note you only need three lookups since
 * we discard chroma bits 0 and 1.
 */
WORD ChromaBits65[] = {
    0x000, 0x008, 0x010, 0x018,
    0x100, 0x108, 0x110, 0x118,
    0x200, 0x208, 0x210, 0x218,
    0x300, 0x308, 0x310, 0x318
};

WORD ChromaBits43[] = {
    0x000, 0x002, 0x004, 0x006,
    0x040, 0x042, 0x044, 0x046,
    0x080, 0x082, 0x084, 0x086,
    0x0c0, 0x0c2, 0x0c4, 0x0c6
};

WORD ChromaBits2[] = {
    0x000, 0x000, 0x001, 0x001,
    0x000, 0x000, 0x001, 0x001,
    0x020, 0x020, 0x021, 0x021,
    0x020, 0x020, 0x021, 0x021
};







/*
 * build yuv411->RGB555 xlate table
 */
LPVOID BuildYUVToRGB555(PINSTINFO pinst)
{
    HGLOBAL hMem = NULL;
    LPVOID pXlate = NULL;

    if (pinst->pXlate != NULL) {
        return(pinst->pXlate);
    }

    /*
     * allocate a table big enough for 32k 2-byte entries
     */

    if ( ( hMem = GlobalAlloc(GPTR, 2 * 32 * 1024))
      && ( pXlate = GlobalLock( hMem ) ) )
    {
        WORD w;
        LPWORD pRGB555 = (LPWORD)pXlate;

        /*
         * build a 15-bit yuv lookup table by stepping through each entry,
         * converting the yuv index to rgb and storing at that index. The index
         * to this table is a 15-bit value with the y component in bits 14..10,
         * u in bits 9..5 and v in bits 4..0. Note that the y component is unsigned,
         * whereas the u and v components are signed.
         */
        for (w = 0; w < 32*1024; w++) {
            /*
             * the YUVtoRGB55 conversion function takes values 0..255 for y,
             * and -128..+127 for u and v. Pick out the relevant bits of the
             * index for this cell, and shift to get values in this range.
             * Remember the cast to ensure sign-extension of these (8-bit) values -
             * and don't assume that chars are signed (they're not on MIPS).
             */
            *pRGB555++ = YUVToRGB555(
                                (w &  0x7c00) >> 7,
                                (signed char) ((w & 0x3e0) >> 2),
                                (signed char) ((w & 0x1f) << 3)
                         );
        }
    }

    return(pXlate);
}

/*
 * build yuv411->RGB565 xlate table
 */
LPVOID BuildYUVToRGB565(PINSTINFO pinst)
{
    HGLOBAL hMem = 0;
    LPVOID pXlate = NULL;

    if (pinst->pXlate != NULL) {
        return(pinst->pXlate);
    }

    /*
     * allocate a table big enough for 32k 2-byte entries
     */
    if ( ( hMem = GlobalAlloc(GPTR, 2 * 32 * 1024))
      && ( pXlate = GlobalLock( hMem ) ) )
    {
        WORD w;
        LPWORD pRGB = (LPWORD)pXlate;

        /*
         * build a 15-bit yuv lookup table by stepping through each entry,
         * converting the yuv index to rgb and storing at that index. The index
         * to this table is a 15-bit value with the y component in bits 14..10,
         * u in bits 9..5 and v in bits 4..0. Note that the y component is unsigned,
         * whereas the u and v components are signed.
         */
        for (w = 0; w < 32*1024; w++) {
            /*
             * the YUVtoRGB conversion function takes values 0..255 for y,
             * and -128..+127 for u and v. Pick out the relevant bits of the
             * index for this cell, and shift to get values in this range.
             * Remember the cast to ensure sign-extension of these (8-bit) values -
             * and don't assume that chars are signed (they're not on MIPS).
             */
            *pRGB++ = YUVToRGB565(
                                (w &  0x7c00) >> 7,
                                (signed char) ((w & 0x3e0) >> 2),
                                (signed char) ((w & 0x1f) << 3)
                         );
        }
    }

    return(pXlate);

}




/*
 * translate one frame from yuv411 to 15/16 bit rgb.
 *
 * The YUV data is spread over 4 16-bit pixels in the format described
 * above. Pick out 4 pixels at a time, truncate them to 15-bit yuv,
 * lookup to translate to 15 or 16-bit rgb (depending on the lookup table
 * and write out.
 *
 * Flip vertically into correct dib format during conversion.
 */
VOID
YUV411ToRGB(
    PINSTINFO pinst,
    LPBITMAPINFOHEADER lpbiInput,
    LPVOID lpInput,
    LPBITMAPINFOHEADER lpbiOutput,
    LPVOID lpOutput
)
{
    int RowInc;
    int i, j;
    DWORD Luma01, Luma23;
    DWORD Chroma;
    int Height, Width;
    int WidthBytes;
    PWORD pXlate;
    PWORD pDst;
    PDWORD pSrc;


    Height = lpbiInput->biHeight;
    Width = lpbiInput->biWidth;
    WidthBytes = Width*2;               // size of (input and output) line
    pXlate = pinst->pXlate;


    /*
     * adjust the source to point to the start of the last line,
     * and work upwards (to flip vertically into DIB format)
     */
    pSrc = (PDWORD) ( (PUCHAR) lpInput + ((Height - 1) * WidthBytes));
    pDst = (PWORD) lpOutput;

    /*
     * calculate the amount to adjust source by at the end of one line
     * of copying. At this point we are at the end of line N. We need
     * to move to the start of line N-1.
     */
    RowInc = (WidthBytes * 2) / sizeof(DWORD);

    /* loop copying each scanline */
    for (i = 0; i < Height; i++) {

        /* loop copying four pixels at a time */
        for (j = 0; j < Width; j += 4) {

            /*
             * get four pixels and convert to 15-bpp YUV
             */

            /* get luma for first 2 pixels + higher chroma bits */
            Luma01 = *pSrc++;


            /* pick out u,v components using lookup table.
             * u and v will be the bottom 10 bits of each pixel, so
             * convert to this layout
             */
            Chroma = ChromaBits65[(Luma01 >> 12) & 0xf] |
                        ChromaBits43[ (Luma01 >> 28) & 0xf ];

            /* next two pixels + lower chroma bits */
            Luma23 = *pSrc++;

            /* pickup u and v bits 2 - ignore bits 1, 0 since
             * we only use 5-bits per component for conversion
             */
            Chroma |= ChromaBits2[ ( Luma23 >> 12) & 0xf];

            /*
             * combine luma for pix 0 with common chroma bits to
             * get 15-bit yuv, then lookup to convert to
             * rgb and store.
             */
            *pDst++ = pXlate[ ((Luma01 & 0xf8) << 7) | Chroma];
            *pDst++ = pXlate[ ((Luma01 & 0xf80000) >> 9) | Chroma];
            *pDst++ = pXlate[ ((Luma23 & 0xf8) << 7) | Chroma];
            *pDst++ = pXlate[ ((Luma23 & 0xf80000) >> 9) | Chroma];

        } // loop per 4 pixels

        /* move source pointer back to next line */
        pSrc -= RowInc;
    } // loop per row
}


/* YUV 4:2:2 support ------------------------------------------ */

/*
 * The captured data is in YUV 4:2:2, 8-bits per sample.
 * The data is laid out in alternating Y-U-Y-V-Y-U-Y-V format. Thus
 * every DWORD contains two complete pixels, in the
 * form (msb..lsb) V..Y1..U..Y0
 * All 3 components (y, u and v) are all unsigned 8-bit values in the range
 * 16..235.
 *
 * We have to double scan lines for >= 480 line formats since
 * the hardware only captured one field maximum.
 *
 */





/*
 * build a translation table to translate between YUV and RGB555.
 *
 * This builds a lookup table with 32k 1-word entries: truncate the YUV
 * to 15bits (5-5-5) and look-up in this xlate table to produce the
 * 15-bit rgb value.
 */
LPVOID BuildYUV422ToRGB555(PINSTINFO pinst)
{
    HGLOBAL hMem = 0;
    LPVOID pXlate = NULL;

    if (pinst->pXlate != NULL) {
        return(pinst->pXlate);
    }

    /*
     * allocate a table big enough for 32k 2-byte entries
     */
    if ( ( hMem = GlobalAlloc(GPTR, 2 * 32 * 1024))
      && ( pXlate = GlobalLock( hMem ) ) )
    {
        WORD w;
        LPWORD pRGB555 = (LPWORD)pXlate;

        /*
         * build a 15-bit yuv lookup table by stepping through each entry,
         * converting the yuv index to rgb and storing at that index. The index
         * to this table is a 15-bit value with the y component in bits 14..10,
         * u in bits 9..5 and v in bits 4..0. Note that the y component is unsigned,
         * whereas the u and v components are signed.
         */
        for (w = 0; w < 32*1024; w++) {
            /*
             * the YUVtoRGB55 conversion function takes values 0..255 for y,
             * and -128..+127 for u and v. Pick out the relevant bits of the
             * index for this cell, and shift to get values in this range.
             * Subtract 128 from u and v to shift from 0..255 to -128..+127
             */
            *pRGB555++ = YUVToRGB555(
                                (w &  0x7c00) >> 7,
                                ((w & 0x3e0) >> 2) - 128,
                                ((w & 0x1f) << 3) - 128
                         );
        }
    }

    return(pXlate);


}

/*
 * build a translation table to translate between YUV and RGB 5-6-5
 *
 * This builds a lookup table with 32k 1-word entries: truncate the YUV
 * to 15bits (5-5-5) and look-up in this xlate table to produce the
 * 16-bit rgb value.
 */
LPVOID BuildYUV422ToRGB565(PINSTINFO pinst)
{
    HGLOBAL hMem = 0;
    LPVOID pXlate = NULL;

    if (pinst->pXlate != NULL) {
        return(pinst->pXlate);
    }

    /*
     * allocate a table big enough for 32k 2-byte entries
     */

    if ( ( hMem = GlobalAlloc(GPTR, 2 * 32 * 1024))
      && ( pXlate = GlobalLock( hMem ) ) )
    {
        WORD w;
        LPWORD pRGB = (LPWORD)pXlate;

        /*
         * build a 15-bit yuv lookup table by stepping through each entry,
         * converting the yuv index to rgb and storing at that index. The index
         * to this table is a 15-bit value with the y component in bits 14..10,
         * u in bits 9..5 and v in bits 4..0. Note that the y component is unsigned,
         * whereas the u and v components are signed.
         */
        for (w = 0; w < 32*1024; w++) {
            /*
             * the YUVtoRGB conversion function takes values 0..255 for y,
             * and -128..+127 for u and v. Pick out the relevant bits of the
             * index for this cell, and shift to get values in this range.
             * Subtract 128 from u and v to shift from 0..255 to -128..+127
             */
            *pRGB++ = YUVToRGB565(
                                (w &  0x7c00) >> 7,
                                ((w & 0x3e0) >> 2) - 128,
                                ((w & 0x1f) << 3) - 128
                         );
        }
    }

    return(pXlate);


}

/*
 * translate YUV 4:2:2 into 16-bit RGB using a lookup table. Flip vertically
 * into DIB format during processing. Double scanlines for formats of
 * 480 lines or greater. Produces 565 or 555 format RGB depending on the
 * xlate table.
 */
VOID
YUV422ToRGB(
    PINSTINFO pinst,
     LPBITMAPINFOHEADER lpbiInput,
     LPVOID lpInput,
     LPBITMAPINFOHEADER lpbiOutput,
     LPVOID lpOutput
)
{
    int RowInc;
    int i, j;
    DWORD uv55, dwPixel;
    int WidthBytes;                     // width of one line in BYTES
    BOOL bDuplicate = FALSE;
    PDWORD pSrc, pDst;
    int Height, Width;
    PWORD pXlate;
    int InputHeight;


    Height = lpbiInput->biHeight;
    InputHeight = Height;
    Width = lpbiInput->biWidth;
    WidthBytes = Width*2;               // size of (input and output) line
    pXlate = pinst->pXlate;


    /*
     * adjust the destination to point to the start of the last line,
     * and work upwards (to flip vertically into DIB format)
     */
    pDst = (PDWORD) ( (LPBYTE)lpOutput + (Height - 1) * WidthBytes );
    pSrc = (PDWORD) lpInput;


    /*
     * do we need to duplicate scans to fill the destination ?
     */
    if (Height >= 480) {
        bDuplicate = TRUE;

        /*
         * we need to skip one line each time we copy a line
         */
        RowInc = WidthBytes * 2 + (Width * 2);

        InputHeight = Height/2;

    } else {


        /*
         * calculate the amount to adjust pDst by at the end of one line
         * of copying. At this point we are at the end of line N. We need
         * to move to the start of line N-1.
         */
        RowInc = WidthBytes + (Width * 2);

    }

    /* remember we are adding to a DWORD pointer */
    RowInc /= sizeof(DWORD);



    /* loop copying each scanline */
    for (i = InputHeight; i > 0; i--) {

        /* loop copying two pixels at a time */
        for (j = Width ; j > 0; j -= 2) {

            /*
             * get two pixels and convert to 15-bpp YUV
             */

            dwPixel = *pSrc++;


            /*
             * dwPixel now has two pixels, in this layout (MSB..LSB):
             *
             *  V Y1 U Y0
             *
             * convert to 2 yuv555 words and lookup in xlate table
             */

            /* get common u and v components to lower 10 bits */
            uv55 = ((dwPixel & 0xf8000000) >> 27) |
                    ((dwPixel & 0x0000f800) >> 6);


            /* build each yuv-655 value by truncating
             * y to 5 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwPixel = pXlate[ ((dwPixel & 0xf8) << 7) | uv55 ] |
                      (pXlate[((dwPixel & 0xf80000) >> 9) | uv55 ] << 16);

            /* write two pixels to destination */
            *pDst++ = dwPixel;


        } // loop per 2 pixels


        /* move dest pointer back to next line */
        pDst -= RowInc;

    } // loop per row



    if (bDuplicate) {

        PBYTE pbDst;

        /*
         * Note that since we started at the last line, and didn't duplicate,
         * we placed data in lines 1, 3, 5 etc that needs to be copied
         * to lines 0, 2, 4 etc.
         */
        for (i = 0, pbDst = lpOutput; i < (int) Height; i+= 2) {


            /*
             * duplicate the scan line. We point at the first of the
             * two lines - the data is in the second of the
             * two lines.
             */
            RtlCopyMemory(pbDst, pbDst + WidthBytes, WidthBytes);

            /* skip this pair to get to the next line to be converted */
            pbDst += WidthBytes * 2;
        }
    }
}



#ifdef  TOSHIBA
#ifdef  COLOR_MODIFY
/* YUV12 support ------------------------------------------ */

/*
 * TOSHIBA Y.Kasai
 * for Pistachio
 *
 * The captured data is in YUV12 , 8-bits per.
 * The data is separated each Y,U,V segment.
 * Data format is folow sequence:
 * Y0,Y1,Y2.......Yn,U0,U1,U2.....U(n/4),V0,V1,V2....V(n/4)
 *
 */





/*
 * build a translation table to translate between YUV and RGB555.
 *
 * This builds a lookup table with 32k 1-word entries: truncate the YUV
 * to 15bits (5-5-5) and look-up in this xlate table to produce the
 * 15-bit rgb value.
 */
LPVOID BuildYUVToRB(PINSTINFO pinst)
{
    HGLOBAL hMem = 0;
    LPVOID pXlate = NULL;

    if (pinst->pXlate != NULL) {
        return(pinst->pXlate);
    }

    /*
     * allocate a table big enough for 64k 2-coloer (R, B) entries
     */
    if ( ( hMem = GlobalAlloc(GPTR, 2 * 64 * 1024) )
      && ( pXlate = GlobalLock( hMem ) ) )
    {
        LPBYTE pRB = (LPBYTE)pXlate;
        ULONG  w;

        for (w = 0; w < 64*1024; w++) {
            *pRB++ = TosYVToR( (w &  0xff00) >> 8, ((w & 0xff)) );
        }

        for (w = 0; w < 64*1024; w++) {
            *pRB++ = TosYUToB( (w &  0xff00) >> 8, ((w & 0xff)) );
        }
    }

    return(pXlate);
}

#else //COLOR_MODIFY
/* YUV12 support ------------------------------------------ */

/*
 * TOSHIBA Y.Kasai
 * for Pistachio
 *
 * The captured data is in YUV12 , 8-bits per.
 * The data is separated each Y,U,V segment.
 * Data format is folow sequence:
 * Y0,Y1,Y2.......Yn,U0,U1,U2.....U(n/4),V0,V1,V2....V(n/4)
 *
 */





/*
 * build a translation table to translate between YUV and RGB555.
 *
 * This builds a lookup table with 32k 1-word entries: truncate the YUV
 * to 15bits (5-5-5) and look-up in this xlate table to produce the
 * 15-bit rgb value.
 */
LPVOID BuildYUV12ToRGB555(PINSTINFO pinst)
{
    HGLOBAL hMem = 0;
    LPVOID pXlate = NULL;
    // LPWORD pRGB555;

    if (pinst->pXlate != NULL) {
        return(pinst->pXlate);
    }

    /*
     * allocate a table big enough for 32k 2-byte entries
     */
    if ( ( hMem = GlobalAlloc(GPTR, 2 * 32 * 1024) )
      && ( pXlate = GlobalLock( hMem ) ) )
    {
        WORD w;
        LPWORD pRGB555 = (LPWORD)pXlate;
    
        /*
         * build a 15-bit yuv lookup table by stepping through each entry,
         * converting the yuv index to rgb and storing at that index. The index
         * to this table is a 15-bit value with the y component in bits 14..10,
         * u in bits 9..5 and v in bits 4..0. Note that the y component is unsigned,
         * whereas the u and v components are signed.
         */
        for (w = 0; w < 32*1024; w++) {
            /*
             * the YUVtoRGB55 conversion function takes values 0..255 for y,
             * and 0..255 for u and v. Pick out the relevant bits of the
             * index for this cell, and shift to get values in this range.
             */
            *pRGB555++ = TosYUVToRGB555(
                                (w &  0x7c00) >> 7,
                                ((w & 0x3e0) >> 2),
                                ((w & 0x1f) << 3)
                         );
        }
    }
    return(pXlate);
}

/*
 * build a translation table to translate between YUV and RGB 5-6-5
 *
 * This builds a lookup table with 32k 1-word entries: truncate the YUV
 * to 15bits (5-5-5) and look-up in this xlate table to produce the
 * 16-bit rgb value.
 */
LPVOID BuildYUV12ToRGB565(PINSTINFO pinst)
{
    HGLOBAL hMem = 0;
    LPVOID pXlate = NULL;

    if (pinst->pXlate != NULL) {
        return(pinst->pXlate);
    }

    /*
     * allocate a table big enough for 32k 2-byte entries
     */

    if ( ( hMem = GlobalAlloc(GPTR, 2 * 32 * 1024) )
      && ( pXlate = GlobalLock( hMem ) ) )
    {
        WORD w;
        LPWORD pRGB = (LPWORD)pXlate;

        /*
         * build a 15-bit yuv lookup table by stepping through each entry,
         * converting the yuv index to rgb and storing at that index. The index
         * to this table is a 15-bit value with the y component in bits 14..10,
         * u in bits 9..5 and v in bits 4..0. Note that the y component is unsigned,
         * whereas the u and v components are signed.
         */
        for (w = 0; w < 32*1024; w++) {
    
            /*
             * the YUVtoRGB conversion function takes values 0..255 for y,
             * and 0.255 for u and v. Pick out the relevant bits of the
             * index for this cell, and shift to get values in this range.
             */
            *pRGB++ = TosYUVToRGB565(
                                (w &  0x7c00) >> 7,
                                ((w & 0x3e0) >> 2),
                                ((w & 0x1f) << 3)
                         );
        }
    }

    return(pXlate);
}
#endif//COLOR_MODIFY

/*
 * translate YUV12 into 16-bit RGB using a lookup table. Flip vertically
 * into DIB format during processing. Double scanlines for formats of
 * 240 lines or greater. Produces 565 or 555 format RGB depending on the
 * xlate table.
 */
#ifdef  COLOR_MODIFY
VOID
YUV12ToRGB24(
    PINSTINFO pinst,
     LPBITMAPINFOHEADER lpbiInput,
     LPVOID lpInput,
     LPBITMAPINFOHEADER lpbiOutput,
     LPVOID lpOutput
)
{
    int RowInc;
    int UVRowInc;
    int i, j;
    DWORD dwYPixel;
    int dwParam, dwTemp;
    int WidthBytes;                     // width of one line in BYTES
    BOOL bDuplicate = FALSE;
    PDWORD pYSrc;
    volatile PBYTE pDst;  // '98-12-08 Add volatile attr. for Rep.253570
    PWORD pUSrc, pVSrc;
    WORD wUPixel, wVPixel;
    WORD wUPTemp, wVPTemp;
    int Height, Width;
    PBYTE pXlate;
    int InputHeight;
    BYTE ubR, ubG, ubB;


    Height = lpbiInput->biHeight;
    InputHeight = Height;
    Width = lpbiInput->biWidth;
    WidthBytes = Width*3;               // size of (input and output) line
    pXlate = (PBYTE)pinst->pXlate;


    /*
     * adjust the destination to point to the start of the last line,
     * and work upwards (to flip vertically into DIB format)
     */
    pDst  = (PBYTE) ( (LPBYTE)lpOutput + (Height - 1) * WidthBytes );
    pYSrc = (PDWORD) lpInput;
    pUSrc = (PWORD) ( (LPBYTE)lpInput + Height * Width);
    pVSrc = (PWORD) ( (LPBYTE)lpInput + Height * Width + Height * Width / 4);

    RowInc = WidthBytes + (Width * 3);

    UVRowInc = Width / 2;
    UVRowInc /= sizeof(WORD);

    /* loop copying each scanline */
    for (i = 0; i < InputHeight; i++) {

        /* loop copying two pixels at a time */
        for (j = Width ; j > 0; j -= 4) {

            /*
             * get four pixels and convert to 15-bpp YUV
             */

            dwYPixel = *pYSrc++;
            wUPixel = *pUSrc++;
            wVPixel = *pVSrc++;

            wVPTemp = wVPixel & 0xff;
            wUPTemp = wUPixel & 0xff;
            dwParam = (833 * wVPTemp) + (402 * wUPTemp) - 138908;

            /*
             * dwY(U or V)Pixel now has two pixels, in this layout (MSB..LSB):
             *
             *  Y3 Y2 Y1 Y0
             *  V1 V0
             *  U1 U0
             *
             * convert to 4 yuv555 words and lookup in xlate table
             */

            /* build each yuv-555 value by truncating
             * y to 8 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwTemp = dwYPixel & 0xff;
            ubG = (BYTE)RANGE((dwTemp * 1192 - dwParam) / 1024, 0, 255);
            dwTemp <<= 8;
            ubR = pXlate[ dwTemp | wVPTemp];
            ubB = pXlate[(dwTemp | wUPTemp) + 65536];

            *pDst++ = ubB;
            *pDst++ = ubG;
            *pDst++ = ubR;

            // next pixel
            dwTemp = dwYPixel & 0xff00;
            ubR = pXlate[ dwTemp | wVPTemp];
            ubB = pXlate[(dwTemp | wUPTemp) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            *pDst++ = ubB;
            *pDst++ = ubG;
            *pDst++ = ubR;

            wVPTemp = (wVPixel >> 8) & 0xff;
            wUPTemp = (wUPixel >> 8) & 0xff;
            dwParam = (833 * wVPTemp) + (402 * wUPTemp) - 138908;

            dwTemp = (dwYPixel & 0xff0000) >> 8;
            ubR = pXlate[ dwTemp | wVPTemp];
            ubB = pXlate[(dwTemp | wUPTemp) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            *pDst++ = ubB;
            *pDst++ = ubG;
            *pDst++ = ubR;

            // next pixel
            dwTemp = (dwYPixel & 0xff000000) >> 16;
            ubR = pXlate[ dwTemp | wVPTemp];
            ubB = pXlate[(dwTemp | wUPTemp) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            *pDst++ = ubB;
            *pDst++ = ubG;
            *pDst++ = ubR;

        } // loop per 4 pixels

        if (!(i & 1))
        {
            pUSrc -= UVRowInc;
            pVSrc -= UVRowInc;
        }

        /* move dest pointer back to next line */
        pDst -= RowInc;

    } // loop per row
}

VOID
YUV12ToRGB565(
    PINSTINFO pinst,
     LPBITMAPINFOHEADER lpbiInput,
     LPVOID lpInput,
     LPBITMAPINFOHEADER lpbiOutput,
     LPVOID lpOutput
)
{
    int RowInc;
    int UVRowInc;
    int i, j;
    DWORD uv55, dwPixel, dwYPixel;
    int dwParam, dwTemp;
    int WidthBytes;                     // width of one line in BYTES
    BOOL bDuplicate = FALSE;
    PDWORD pYSrc;
    volatile PDWORD pDst;  // '98-12-08 Add volatile attr. for Rep.253570
    PWORD pUSrc, pVSrc;
    WORD wUPixel, wVPixel;
    WORD wUPTemp, wVPTemp;
    int Height, Width;
    PBYTE pXlate;
    int InputHeight;
    BYTE ubR, ubG, ubB;


    Height = lpbiInput->biHeight;
    InputHeight = Height;
    Width = lpbiInput->biWidth;
    WidthBytes = Width*2;               // size of (input and output) line
    pXlate = (PBYTE)pinst->pXlate;


    /*
     * adjust the destination to point to the start of the last line,
     * and work upwards (to flip vertically into DIB format)
     */
    pDst = (PDWORD) ( (LPBYTE)lpOutput + (Height - 1) * WidthBytes );
    pYSrc = (PDWORD) lpInput;
    pUSrc = (PWORD) ( (LPBYTE)lpInput + Height * Width);
    pVSrc = (PWORD) ( (LPBYTE)lpInput + Height * Width + Height * Width / 4);


    RowInc = WidthBytes + (Width * 2);

    /* remember we are adding to a DWORD pointer */
    RowInc /= sizeof(DWORD);

    UVRowInc = Width / 2;
    UVRowInc /= sizeof(WORD);

    /* loop copying each scanline */
    for (i = 0; i < InputHeight; i++) {

        /* loop copying two pixels at a time */
        for (j = Width ; j > 0; j -= 4) {

            /*
             * get four pixels and convert to 15-bpp YUV
             */

            dwYPixel = *pYSrc++;
            wUPixel = *pUSrc++;
            wVPixel = *pVSrc++;

            wVPTemp = wVPixel & 0xff;
            wUPTemp = wUPixel & 0xff;
            dwParam = (833 * wVPTemp) + (402 * wUPTemp) - 138908;

            /*
             * dwY(U or V)Pixel now has two pixels, in this layout (MSB..LSB):
             *
             *  Y3 Y2 Y1 Y0
             *  V1 V0
             *  U1 U0
             *
             * convert to 4 yuv555 words and lookup in xlate table
             */

            /* build each yuv-555 value by truncating
             * y to 8 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwTemp = dwYPixel & 0xff;
            ubG = (BYTE)RANGE((dwTemp * 1192 - dwParam) / 1024, 0, 255);
            dwTemp <<= 8;
            ubR = pXlate[ dwTemp | wVPTemp];
            ubB = pXlate[(dwTemp | wUPTemp) + 65536];

            dwPixel = (ubR & 0xf8) << 8 | (ubG & 0xfc) << 3 | (ubB & 0xf8) >> 3;

            // next pixel
            dwTemp = dwYPixel & 0xff00;
            ubR = pXlate[ dwTemp | wVPTemp];
            ubB = pXlate[(dwTemp | wUPTemp) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            dwPixel |= (ubR & 0xf8) << 24 | (ubG & 0xfc) << 19 | (ubB & 0xf8) << 13;

            /* write two pixels to destination */
            *pDst++ = dwPixel;

            wVPTemp = (wVPixel >> 8) & 0xff;
            wUPTemp = (wUPixel >> 8) & 0xff;
            dwParam = (833 * wVPTemp) + (402 * wUPTemp) - 138908;

            dwTemp = (dwYPixel & 0xff0000) >> 8;
            ubR = pXlate[ dwTemp | wVPTemp];
            ubB = pXlate[(dwTemp | wUPTemp) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            dwPixel = (ubR & 0xf8) << 8 | (ubG & 0xfc) << 3 | (ubB & 0xf8) >> 3;

            // next pixel
            dwTemp = (dwYPixel & 0xff000000) >> 16;
            ubR = pXlate[ dwTemp | wVPTemp];
            ubB = pXlate[(dwTemp | wUPTemp) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            dwPixel |= (ubR & 0xf8) << 24 | (ubG & 0xfc) << 19 | (ubB & 0xf8) << 13;

            /* write two pixels to destination */
            *pDst++ = dwPixel;

        } // loop per 4 pixels

        if (!(i & 1))
        {
            pUSrc -= UVRowInc;
            pVSrc -= UVRowInc;
        }

        /* move dest pointer back to next line */
        pDst -= RowInc;

    } // loop per row
}

VOID
YUV12ToRGB555(
    PINSTINFO pinst,
     LPBITMAPINFOHEADER lpbiInput,
     LPVOID lpInput,
     LPBITMAPINFOHEADER lpbiOutput,
     LPVOID lpOutput
)
{
    int RowInc;
    int UVRowInc;
    int i, j;
    DWORD uv55, dwPixel, dwYPixel;
    int dwParam, dwTemp;
    int WidthBytes;                     // width of one line in BYTES
    BOOL bDuplicate = FALSE;
    PDWORD pYSrc;
    volatile PDWORD pDst;  // '98-12-08 Add volatile attr. for Rep.253570
    PWORD pUSrc, pVSrc;
    WORD wUPixel, wVPixel;
    WORD wUPTemp, wVPTemp;
    int Height, Width;
    PBYTE pXlate;
    int InputHeight;
    BYTE ubR, ubG, ubB;


    Height = lpbiInput->biHeight;
    InputHeight = Height;
    Width = lpbiInput->biWidth;
    WidthBytes = Width*2;               // size of (input and output) line
    pXlate = (PBYTE)pinst->pXlate;


    /*
     * adjust the destination to point to the start of the last line,
     * and work upwards (to flip vertically into DIB format)
     */
    pDst = (PDWORD) ( (LPBYTE)lpOutput + (Height - 1) * WidthBytes );
    pYSrc = (PDWORD) lpInput;
    pUSrc = (PWORD) ( (LPBYTE)lpInput + Height * Width);
    pVSrc = (PWORD) ( (LPBYTE)lpInput + Height * Width + Height * Width / 4);


    RowInc = WidthBytes + (Width * 2);

    /* remember we are adding to a DWORD pointer */
    RowInc /= sizeof(DWORD);

    UVRowInc = Width / 2;
    UVRowInc /= sizeof(WORD);

    /* loop copying each scanline */
    for (i = 0; i < InputHeight; i++) {

        /* loop copying two pixels at a time */
        for (j = Width ; j > 0; j -= 4) {

            /*
             * get four pixels and convert to 15-bpp YUV
             */

            dwYPixel = *pYSrc++;
            wUPixel = *pUSrc++;
            wVPixel = *pVSrc++;

            wVPTemp = wVPixel & 0xff;
            wUPTemp = wUPixel & 0xff;
            dwParam = (833 * wVPTemp) + (402 * wUPTemp) - 138908;

            /*
             * dwY(U or V)Pixel now has two pixels, in this layout (MSB..LSB):
             *
             *  Y3 Y2 Y1 Y0
             *  V1 V0
             *  U1 U0
             *
             * convert to 4 yuv555 words and lookup in xlate table
             */

            /* build each yuv-555 value by truncating
             * y to 8 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwTemp = dwYPixel & 0xff;
            ubG = (BYTE)RANGE((dwTemp * 1192 - dwParam) / 1024, 0, 255);
            dwTemp <<= 8;
            ubR = pXlate[ dwTemp | wVPTemp];
            ubB = pXlate[(dwTemp | wUPTemp) + 65536];

            dwPixel = (ubR & 0xf8) << 7 | (ubG & 0xf8) << 2 | (ubB & 0xf8) >> 3;

            // next pixel
            dwTemp = dwYPixel & 0xff00;
            ubR = pXlate[ dwTemp | wVPTemp];
            ubB = pXlate[(dwTemp | wUPTemp) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            dwPixel |= (ubR & 0xf8) << 23 | (ubG & 0xf8) << 18 | (ubB & 0xf8) << 13;

            /* write two pixels to destination */
            *pDst++ = dwPixel;

            wVPTemp = (wVPixel >> 8) & 0xff;
            wUPTemp = (wUPixel >> 8) & 0xff;
            dwParam = (833 * wVPTemp) + (402 * wUPTemp) - 138908;

            dwTemp = (dwYPixel & 0xff0000) >> 8;
            ubR = pXlate[ dwTemp | wVPTemp];
            ubB = pXlate[(dwTemp | wUPTemp) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            dwPixel = (ubR & 0xf8) << 7 | (ubG & 0xf8) << 2 | (ubB & 0xf8) >> 3;

            // next pixel
            dwTemp = (dwYPixel & 0xff000000) >> 16;
            ubR = pXlate[ dwTemp | wVPTemp];
            ubB = pXlate[(dwTemp | wUPTemp) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            dwPixel |= (ubR & 0xf8) << 23 | (ubG & 0xf8) << 18 | (ubB & 0xf8) << 13;

            /* write two pixels to destination */
            *pDst++ = dwPixel;

        } // loop per 4 pixels

        if (!(i & 1))
        {
            pUSrc -= UVRowInc;
            pVSrc -= UVRowInc;
        }

        /* move dest pointer back to next line */
        pDst -= RowInc;

    } // loop per row
}
#else //COLOR_MODIFY
VOID
YUV12ToRGB(
    PINSTINFO pinst,
     LPBITMAPINFOHEADER lpbiInput,
     LPVOID lpInput,
     LPBITMAPINFOHEADER lpbiOutput,
     LPVOID lpOutput
)
{
    int RowInc;
        int UVRowInc;
    int i, j;
    DWORD uv55, dwPixel, dwYPixel;
    int WidthBytes;                     // width of one line in BYTES
    BOOL bDuplicate = FALSE;
    PDWORD pYSrc, pDst;
    PWORD pUSrc, pVSrc;
    WORD wUPixel, wVPixel;
    int Height, Width;
    PWORD pXlate;
    int InputHeight;


    Height = lpbiInput->biHeight;
    InputHeight = Height;
    Width = lpbiInput->biWidth;
    WidthBytes = Width*2;               // size of (input and output) line
    pXlate = pinst->pXlate;


    /*
     * adjust the destination to point to the start of the last line,
     * and work upwards (to flip vertically into DIB format)
     */
    pDst = (PDWORD) ( (LPBYTE)lpOutput + (Height - 1) * WidthBytes );
    pYSrc = (PDWORD) lpInput;
#if 1
    pUSrc = (PWORD) ( (LPBYTE)lpInput + Height * Width);
    pVSrc = (PWORD) ( (LPBYTE)lpInput + Height * Width + Height * Width / 4);
#else
    pUSrc = (PWORD) lpInput + Height * Width;
    pVSrc = (PWORD) lpInput + Height * Width + Height * Width / 4;
#endif


#if 1
    RowInc = WidthBytes + (Width * 2);
#else
    /*
     * do we need to duplicate scans to fill the destination ?
     */
    if (Height >= 240) {
        bDuplicate = TRUE;

        /*
         * we need to skip one line each time we copy a line
         */
        RowInc = WidthBytes * 2 + (Width * 2);

        InputHeight = Height/2;

    } else {


        /*
         * calculate the amount to adjust pDst by at the end of one line
         * of copying. At this point we are at the end of line N. We need
         * to move to the start of line N-1.
         */
        RowInc = WidthBytes + (Width * 2);

    }
#endif

    /* remember we are adding to a DWORD pointer */
    RowInc /= sizeof(DWORD);

    UVRowInc = Width / 2;
    UVRowInc /= sizeof(WORD);



    /* loop copying each scanline */
    for (i = 0; i < InputHeight; i++) {

        /* loop copying two pixels at a time */
        for (j = Width ; j > 0; j -= 4) {

            /*
             * get four pixels and convert to 15-bpp YUV
             */

            dwYPixel = *pYSrc++;
            wUPixel = *pUSrc++;
            wVPixel = *pVSrc++;


            /*
             * dwY(U or V)Pixel now has two pixels, in this layout (MSB..LSB):
             *
             *  Y3 Y2 Y1 Y0
             *  V1 V0
             *  U1 U0
             *
             * convert to 4 yuv555 words and lookup in xlate table
             */

            /* get common u0 and v0 components to lower 10 bits */
            uv55 = ((wUPixel & 0xf8) << 2) |
                    ((wVPixel & 0xf8) >> 3);


            /* build each yuv-555 value by truncating
             * y to 5 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwPixel = pXlate[ ((dwYPixel & 0xf8) << 7) | uv55 ] |
                      (pXlate[((dwYPixel & 0xf800) >> 1) | uv55 ] << 16);

            /* write two pixels to destination */
            *pDst++ = dwPixel;

            /* get common u1 and v1 components to lower 10 bits */
            uv55 = ((wUPixel & 0xf800) >> 6) |
                    ((wVPixel & 0xf800) >> 11);


            /* build each yuv-655 value by truncating
             * y to 5 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwPixel = pXlate[ ((dwYPixel & 0xf80000) >> 9) | uv55 ] |
                      (pXlate[((dwYPixel & 0xf8000000) >> 17) | uv55 ] << 16);

            /* write two pixels to destination */
            *pDst++ = dwPixel;



        } // loop per 4 pixels

        if (!(i & 1))
        {
            pUSrc -= UVRowInc;
            pVSrc -= UVRowInc;
        }

        /* move dest pointer back to next line */
        pDst -= RowInc;

    } // loop per row


#if 0 // Pistachio is not support Interlace mode!!

    if (bDuplicate) {

        PBYTE pbDst;

        /*
         * Note that since we started at the last line, and didn't duplicate,
         * we placed data in lines 1, 3, 5 etc that needs to be copied
         * to lines 0, 2, 4 etc.
         */
        for (i = 0, pbDst = lpOutput; i < (int) Height; i+= 2) {


            /*
             * duplicate the scan line. We point at the first of the
             * two lines - the data is in the second of the
             * two lines.
             */
            RtlCopyMemory(pbDst, pbDst + WidthBytes, WidthBytes);

            /* skip this pair to get to the next line to be converted */
            pbDst += WidthBytes * 2;
        }
    }
#endif
}
#endif//COLOR_MODIFY



/* YUV9 Support ------------------------------------------ */

/*
 * TOSHIBA Y.Kasai
 * for Pistachio
 *
 * The captured data is in YUV9 .
 * The data is separated each Y,U,V segment.
 * Data format is folow sequence:
 * Y0,Y1,Y2.......Yn,V0,V1,V2....V(n/16),U0,U1,U2.....U(n/16)
 *
 */


/*
 * translate YUV9 into 16-bit RGB using a lookup table. Flip vertically
 * into DIB format during processing.
 * Produces 565 or 555 format RGB depending on the
 * xlate table.
 */
#ifdef  COLOR_MODIFY
VOID
YUV9ToRGB24(
    PINSTINFO pinst,
     LPBITMAPINFOHEADER lpbiInput,
     LPVOID lpInput,
     LPBITMAPINFOHEADER lpbiOutput,
     LPVOID lpOutput
)
{
    int RowInc;
    int UVRowInc;
    int i, j;
    DWORD dwYPixel;
    int dwParam, dwTemp;
    int WidthBytes;                     // width of one line in BYTES
    BOOL bDuplicate = FALSE;
    PDWORD pYSrc;
    volatile PBYTE pDst;  // '98-12-08 Add volatile attr. for Rep.253570
    PBYTE pUSrc, pVSrc;
    BYTE bUPixel, bVPixel;
    int Height, Width;
    PBYTE pXlate;
    int InputHeight;
    BYTE ubR, ubG, ubB;


    Height = lpbiInput->biHeight;
    InputHeight = Height;
    Width = lpbiInput->biWidth;
    WidthBytes = Width*3;               // size of (input and output) line
    pXlate = (PBYTE)pinst->pXlate;


    /*
     * adjust the destination to point to the start of the last line,
     * and work upwards (to flip vertically into DIB format)
     */
    pDst  = (PBYTE) ( (LPBYTE)lpOutput + (Height - 1) * WidthBytes );
    pYSrc = (PDWORD) lpInput;

    pVSrc = (PBYTE) ( (LPBYTE)lpInput + Height * Width);
    pUSrc = (PBYTE) ( (LPBYTE)lpInput + Height * Width + Height * Width / 16);

    /*
     * calculate the amount to adjust pDst by at the end of one line
     * of copying. At this point we are at the end of line N. We need
     * to move to the start of line N-1.
     */
    RowInc = WidthBytes + (Width * 3);

    UVRowInc = Width / 4;
    UVRowInc /= sizeof(BYTE);

    /* loop copying each scanline */
    for (i = 0; i < InputHeight; i++) {

        /* loop copying two pixels at a time */
        for (j = Width ; j > 0; j -= 4) {

            /*
             * get four pixels and convert to 15-bpp YUV
             */

            dwYPixel = *pYSrc++;
            bUPixel = *pUSrc++;
            bVPixel = *pVSrc++;

            dwParam = (833 * bVPixel) + (402 * bUPixel) - 138908;

            /*
             * dwY(U or V)Pixel now has four pixels, in this layout (MSB..LSB):
             *
             *  Y3 Y2 Y1 Y0
             *  V0
             *  U0
             *
             * convert to 4 yuv555 words and lookup in xlate table
             */

            /* build each yuv-555 value by truncating
             * y to 5 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwTemp = dwYPixel & 0xff;
            ubG = (BYTE)RANGE((dwTemp * 1192 - dwParam) / 1024, 0, 255);
            dwTemp <<= 8;
            ubR = pXlate[ dwTemp | bVPixel];
            ubB = pXlate[(dwTemp | bUPixel) + 65536];

            *pDst++ = ubB;
            *pDst++ = ubG;
            *pDst++ = ubR;

            // next pixel
            dwTemp = dwYPixel & 0xff00;
            ubR = pXlate[ dwTemp | bVPixel];
            ubB = pXlate[(dwTemp | bUPixel) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            *pDst++ = ubB;
            *pDst++ = ubG;
            *pDst++ = ubR;

            /* build each yuv-655 value by truncating
             * y to 5 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwTemp = (dwYPixel & 0xff0000) >> 8;
            ubR = pXlate[ dwTemp | bVPixel];
            ubB = pXlate[(dwTemp | bUPixel) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            *pDst++ = ubB;
            *pDst++ = ubG;
            *pDst++ = ubR;

            // next pixel
            dwTemp = (dwYPixel & 0xff000000) >> 16;
            ubR = pXlate[ dwTemp | bVPixel];
            ubB = pXlate[(dwTemp | bUPixel) + 65536];
            ubG = (BYTE)RANGE((((dwTemp >> 8) & 0xff) * 1192 - dwParam) / 1024, 0, 255);

            *pDst++ = ubB;
            *pDst++ = ubG;
            *pDst++ = ubR;

        } // loop per 4 pixels

        if ((i & 0x3) != 0x03)
        {
            pUSrc -= UVRowInc;
            pVSrc -= UVRowInc;
        }

        /* move dest pointer back to next line */
        pDst -= RowInc;

    } // loop per row
}

VOID
YUV9ToRGB565(
    PINSTINFO pinst,
     LPBITMAPINFOHEADER lpbiInput,
     LPVOID lpInput,
     LPBITMAPINFOHEADER lpbiOutput,
     LPVOID lpOutput
)
{
    int RowInc;
    int UVRowInc;
    int i, j;
    DWORD uv55, dwPixel, dwYPixel;
    int dwParam, dwTemp;
    int WidthBytes;                     // width of one line in BYTES
    BOOL bDuplicate = FALSE;
    PDWORD pYSrc;
    volatile PDWORD pDst;  // '98-12-08 Add volatile attr. for Rep.253570
    PBYTE pUSrc, pVSrc;
    BYTE bUPixel, bVPixel;
    int Height, Width;
    PBYTE pXlate;
    int InputHeight;
    BYTE ubR, ubG, ubB;


    Height = lpbiInput->biHeight;
    InputHeight = Height;
    Width = lpbiInput->biWidth;
    WidthBytes = Width*2;               // size of (input and output) line
    pXlate = (PBYTE)pinst->pXlate;


    /*
     * adjust the destination to point to the start of the last line,
     * and work upwards (to flip vertically into DIB format)
     */
    pDst = (PDWORD) ( (LPBYTE)lpOutput + (Height - 1) * WidthBytes );
    pYSrc = (PDWORD) lpInput;

    pVSrc = (PBYTE) ( (LPBYTE)lpInput + Height * Width);
    pUSrc = (PBYTE) ( (LPBYTE)lpInput + Height * Width + Height * Width / 16);

    /*
     * calculate the amount to adjust pDst by at the end of one line
     * of copying. At this point we are at the end of line N. We need
     * to move to the start of line N-1.
     */
    RowInc = WidthBytes + (Width * 2);


    /* remember we are adding to a DWORD pointer */
    RowInc /= sizeof(DWORD);


    UVRowInc = Width / 4;
    UVRowInc /= sizeof(BYTE);

    /* loop copying each scanline */
    for (i = 0; i < InputHeight; i++) {

        /* loop copying two pixels at a time */
        for (j = Width ; j > 0; j -= 4) {

            /*
             * get four pixels and convert to 15-bpp YUV
             */

            dwYPixel = *pYSrc++;
            bUPixel = *pUSrc++;
            bVPixel = *pVSrc++;

            dwParam = (833 * bVPixel) + (402 * bUPixel) - 138908;

            /*
             * dwY(U or V)Pixel now has four pixels, in this layout (MSB..LSB):
             *
             *  Y3 Y2 Y1 Y0
             *  V0
             *  U0
             *
             * convert to 4 yuv555 words and lookup in xlate table
             */

            /* build each yuv-555 value by truncating
             * y to 5 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwTemp = dwYPixel & 0xff;
            ubG = (BYTE)RANGE((dwTemp * 1192 - dwParam) / 1024, 0, 255);
            dwTemp <<= 8;
            ubR = pXlate[ dwTemp | bVPixel];
            ubB = pXlate[(dwTemp | bUPixel) + 65536];

            dwPixel = (ubR & 0xf8) << 8 | (ubG & 0xfc) << 3 | (ubB & 0xf8) >> 3;

            // next pixel
            dwTemp = dwYPixel & 0xff00;
            ubR = pXlate[ dwTemp | bVPixel];
            ubB = pXlate[(dwTemp | bUPixel) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            dwPixel |= (ubR & 0xf8) << 24 | (ubG & 0xfc) << 19 | (ubB & 0xf8) << 13;

            *pDst++ = dwPixel;

            /* build each yuv-655 value by truncating
             * y to 5 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwTemp = (dwYPixel & 0xff0000) >> 8;
            ubR = pXlate[ dwTemp | bVPixel];
            ubB = pXlate[(dwTemp | bUPixel) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            dwPixel = (ubR & 0xf8) << 8 | (ubG & 0xfc) << 3 | (ubB & 0xf8) >> 3;

            // next pixel
            dwTemp = (dwYPixel & 0xff000000) >> 16;
            ubR = pXlate[ dwTemp | bVPixel];
            ubB = pXlate[(dwTemp | bUPixel) + 65536];
            ubG = (BYTE)RANGE((((dwTemp >> 8) & 0xff) * 1192 - dwParam) / 1024, 0, 255);

            dwPixel |= (ubR & 0xf8) << 24 | (ubG & 0xfc) << 19 | (ubB & 0xf8) << 13;

            /* write two pixels to destination */
            *pDst++ = dwPixel;

        } // loop per 4 pixels

        if ((i & 0x3) != 0x03)
        {
            pUSrc -= UVRowInc;
            pVSrc -= UVRowInc;
        }

        /* move dest pointer back to next line */
        pDst -= RowInc;

    } // loop per row
}

VOID
YUV9ToRGB555(
    PINSTINFO pinst,
     LPBITMAPINFOHEADER lpbiInput,
     LPVOID lpInput,
     LPBITMAPINFOHEADER lpbiOutput,
     LPVOID lpOutput
)
{
    int RowInc;
    int UVRowInc;
    int i, j;
    DWORD uv55, dwPixel, dwYPixel;
    int dwParam, dwTemp;
    int WidthBytes;                     // width of one line in BYTES
    BOOL bDuplicate = FALSE;
    PDWORD pYSrc;
    volatile PDWORD pDst;  // '98-12-08 Add volatile attr. for Rep.253570
    PBYTE pUSrc, pVSrc;
    BYTE bUPixel, bVPixel;
    int Height, Width;
    PBYTE pXlate;
    int InputHeight;
    BYTE ubR, ubG, ubB;


    Height = lpbiInput->biHeight;
    InputHeight = Height;
    Width = lpbiInput->biWidth;
    WidthBytes = Width*2;               // size of (input and output) line
    pXlate = pinst->pXlate;


    /*
     * adjust the destination to point to the start of the last line,
     * and work upwards (to flip vertically into DIB format)
     */
    pDst = (PDWORD) ( (LPBYTE)lpOutput + (Height - 1) * WidthBytes );
    pYSrc = (PDWORD) lpInput;

    pVSrc = (PBYTE) ( (LPBYTE)lpInput + Height * Width);
    pUSrc = (PBYTE) ( (LPBYTE)lpInput + Height * Width + Height * Width / 16);

    /*
     * calculate the amount to adjust pDst by at the end of one line
     * of copying. At this point we are at the end of line N. We need
     * to move to the start of line N-1.
     */
    RowInc = WidthBytes + (Width * 2);


    /* remember we are adding to a DWORD pointer */
    RowInc /= sizeof(DWORD);


    UVRowInc = Width / 4;
    UVRowInc /= sizeof(BYTE);

    /* loop copying each scanline */
    for (i = 0; i < InputHeight; i++) {

        /* loop copying two pixels at a time */
        for (j = Width ; j > 0; j -= 4) {

            /*
             * get four pixels and convert to 15-bpp YUV
             */

            dwYPixel = *pYSrc++;
            bUPixel = *pUSrc++;
            bVPixel = *pVSrc++;

            dwParam = (833 * bVPixel) + (402 * bUPixel) - 138908;

            /*
             * dwY(U or V)Pixel now has four pixels, in this layout (MSB..LSB):
             *
             *  Y3 Y2 Y1 Y0
             *  V0
             *  U0
             *
             * convert to 4 yuv555 words and lookup in xlate table
             */

            /* build each yuv-555 value by truncating
             * y to 5 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwTemp = dwYPixel & 0xff;
            ubG = (BYTE)RANGE((dwTemp * 1192 - dwParam) / 1024, 0, 255);
            dwTemp <<= 8;
            ubR = pXlate[ dwTemp | bVPixel];
            ubB = pXlate[(dwTemp | bUPixel) + 65536];

            dwPixel = (ubR & 0xf8) << 7 | (ubG & 0xf8) << 2 | (ubB & 0xf8) >> 3;

            // next pixel
            dwTemp = dwYPixel & 0xff00;
            ubR = pXlate[ dwTemp | bVPixel];
            ubB = pXlate[(dwTemp | bUPixel) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            dwPixel |= (ubR & 0xf8) << 23 | (ubG & 0xf8) << 18 | (ubB & 0xf8) << 13;

            /* write two pixels to destination */
            *pDst++ = dwPixel;


            /* build each yuv-655 value by truncating
             * y to 5 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwTemp = (dwYPixel & 0xff0000) >> 8;
            ubR = pXlate[ dwTemp | bVPixel];
            ubB = pXlate[(dwTemp | bUPixel) + 65536];
            ubG = (BYTE)RANGE(((dwTemp >> 8) * 1192 - dwParam) / 1024, 0, 255);

            dwPixel = (ubR & 0xf8) << 7 | (ubG & 0xf8) << 2 | (ubB & 0xf8) >> 3;

            // next pixel
            dwTemp = (dwYPixel & 0xff000000) >> 16;
            ubR = pXlate[ dwTemp | bVPixel];
            ubB = pXlate[(dwTemp | bUPixel) + 65536];
            ubG = (BYTE)RANGE((((dwTemp >> 8) & 0xff) * 1192 - dwParam) / 1024, 0, 255);

            dwPixel |= (ubR & 0xf8) << 23 | (ubG & 0xf8) << 18 | (ubB & 0xf8) << 13;

            /* write two pixels to destination */
            *pDst++ = dwPixel;

        } // loop per 4 pixels

        if ((i & 0x3) != 0x03)
        {
            pUSrc -= UVRowInc;
            pVSrc -= UVRowInc;
        }

        /* move dest pointer back to next line */
        pDst -= RowInc;

    } // loop per row
}

#else //COLOR_MODIFY
VOID
YUV9ToRGB(
    PINSTINFO pinst,
     LPBITMAPINFOHEADER lpbiInput,
     LPVOID lpInput,
     LPBITMAPINFOHEADER lpbiOutput,
     LPVOID lpOutput
)
{
    int RowInc;
        int UVRowInc;
    int i, j;
    DWORD uv55, dwPixel, dwYPixel;
    int WidthBytes;                     // width of one line in BYTES
    BOOL bDuplicate = FALSE;
    PDWORD pYSrc, pDst;
    PBYTE pUSrc, pVSrc;
    BYTE bUPixel, bVPixel;
    int Height, Width;
    PWORD pXlate;
    int InputHeight;


    Height = lpbiInput->biHeight;
    InputHeight = Height;
    Width = lpbiInput->biWidth;
    WidthBytes = Width*2;               // size of (input and output) line
    pXlate = pinst->pXlate;


    /*
     * adjust the destination to point to the start of the last line,
     * and work upwards (to flip vertically into DIB format)
     */
    pDst = (PDWORD) ( (LPBYTE)lpOutput + (Height - 1) * WidthBytes );
    pYSrc = (PDWORD) lpInput;

#if 1
    pVSrc = (PBYTE) ( (LPBYTE)lpInput + Height * Width);
    pUSrc = (PBYTE) ( (LPBYTE)lpInput + Height * Width + Height * Width / 16);
#else
    pVSrc = (PBYTE) lpInput + Height * Width;
    pUSrc = (PBYTE) lpInput + Height * Width + Height * Width / 16;
#endif



        /*
         * calculate the amount to adjust pDst by at the end of one line
         * of copying. At this point we are at the end of line N. We need
         * to move to the start of line N-1.
         */
        RowInc = WidthBytes + (Width * 2);


    /* remember we are adding to a DWORD pointer */
    RowInc /= sizeof(DWORD);


    UVRowInc = Width / 4;
    UVRowInc /= sizeof(BYTE);



    /* loop copying each scanline */
    for (i = 0; i < InputHeight; i++) {

        /* loop copying two pixels at a time */
        for (j = Width ; j > 0; j -= 4) {

            /*
             * get four pixels and convert to 15-bpp YUV
             */

            dwYPixel = *pYSrc++;
            bUPixel = *pUSrc++;
            bVPixel = *pVSrc++;


            /*
             * dwY(U or V)Pixel now has four pixels, in this layout (MSB..LSB):
             *
             *  Y3 Y2 Y1 Y0
             *  V0
             *  U0
             *
             * convert to 4 yuv555 words and lookup in xlate table
             */

            /* get common u0 and v0 components to lower 10 bits */
            uv55 = ((bUPixel & 0xf8) << 2) |
                    ((bVPixel & 0xf8) >> 3);


            /* build each yuv-555 value by truncating
             * y to 5 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwPixel = pXlate[ ((dwYPixel & 0xf8) << 7) | uv55 ] |
                      (pXlate[((dwYPixel & 0xf800) >> 1) | uv55 ] << 16);

            /* write two pixels to destination */
            *pDst++ = dwPixel;


            /* build each yuv-655 value by truncating
             * y to 5 bits and adding the common u and v bits,
             * look up to convert to rgb, and combine two pixels
             * into one dword
             */
            dwPixel = pXlate[ ((dwYPixel & 0xf80000) >> 9) | uv55 ] |
                      (pXlate[((dwYPixel & 0xf8000000) >> 17) | uv55 ] << 16);

            /* write two pixels to destination */
            *pDst++ = dwPixel;



        } // loop per 4 pixels

        if ((i & 0x3) != 0x03)
        {
            pUSrc -= UVRowInc;
            pVSrc -= UVRowInc;
        }

        /* move dest pointer back to next line */
        pDst -= RowInc;

    } // loop per row

}
#endif//COLOR_MODIFY
#endif//TOSHIBA



VOID FreeXlate(PINSTINFO pinst)
{

    GlobalFree(GlobalHandle(pinst->pXlate));

    pinst->pXlate = NULL;
}