Function _cupsRasterInitPWGHeader

cups/raster-stream.c:212–432

 */

int					/* O - 1 on success, 0 on failure */
_cupsRasterInitPWGHeader(
    cups_page_header2_t *h,		/* I - Page header */
    pwg_media_t         *media,		/* I - PWG media information */
    const char          *type,		/* I - PWG raster type string */
    int                 xdpi,		/* I - Cross-feed direction (horizontal) resolution */
    int                 ydpi,		/* I - Feed direction (vertical) resolution */
    const char          *sides,		/* I - IPP "sides" option value */
    const char          *sheet_back)	/* I - Transform for back side or @code NULL@ for none */
{
  if (!h || !media || !type || xdpi <= 0 || ydpi <= 0)
  {
    _cupsRasterAddError("%s", strerror(EINVAL));
    return (0);
  }

 /*
  * Initialize the page header...
  */

  memset(h, 0, sizeof(cups_page_header2_t));

  strlcpy(h->cupsPageSizeName, media->pwg, sizeof(h->cupsPageSizeName));

  h->PageSize[0] = (unsigned)(72 * media->width / 2540);
  h->PageSize[1] = (unsigned)(72 * media->length / 2540);

  /* This never gets written but is needed for some applications */
  h->cupsPageSize[0] = 72.0f * media->width / 2540.0f;
  h->cupsPageSize[1] = 72.0f * media->length / 2540.0f;

  h->ImagingBoundingBox[2] = h->PageSize[0];
  h->ImagingBoundingBox[3] = h->PageSize[1];

  h->HWResolution[0] = (unsigned)xdpi;
  h->HWResolution[1] = (unsigned)ydpi;

  h->cupsWidth  = (unsigned)(media->width * xdpi / 2540);
  h->cupsHeight = (unsigned)(media->length * ydpi / 2540);

  if (h->cupsWidth > 0x00ffffff || h->cupsHeight > 0x00ffffff)
  {
    _cupsRasterAddError("Raster dimensions too large.");
    return (0);
  }

  h->cupsInteger[CUPS_RASTER_PWG_ImageBoxRight]  = h->cupsWidth;
  h->cupsInteger[CUPS_RASTER_PWG_ImageBoxBottom] = h->cupsHeight;

 /*
  * Colorspace and bytes per line...
  */

  if (!strcmp(type, "adobe-rgb_8"))
  {
    h->cupsBitsPerColor = 8;
    h->cupsBitsPerPixel = 24;
    h->cupsColorSpace   = CUPS_CSPACE_ADOBERGB;