/*************************************************************************

*

* This software module was originally contributed by Microsoft

* Corporation in the course of development of the

* ITU-T T.832 | ISO/IEC 29199-2 ("JPEG XR") format standard for

* reference purposes and its performance may not have been optimized.

*

* This software module is an implementation of one or more

* tools as specified by the JPEG XR standard.

*

* ITU/ISO/IEC give You a royalty-free, worldwide, non-exclusive

* copyright license to copy, distribute, and make derivative works

* of this software module or modifications thereof for use in

* products claiming conformance to the JPEG XR standard as

* specified by ITU-T T.832 | ISO/IEC 29199-2.

*

* ITU/ISO/IEC give users the same free license to this software

* module or modifications thereof for research purposes and further

* ITU/ISO/IEC standardization.

*

* Those intending to use this software module in products are advised

* that its use may infringe existing patents. ITU/ISO/IEC have no

* liability for use of this software module or modifications thereof.

*

* Copyright is not released for products that do not conform to

* to the JPEG XR standard as specified by ITU-T T.832 |

* ISO/IEC 29199-2.

*

******** Section to be removed when the standard is published ************

*

* Assurance that the contributed software module can be used

* (1) in the ITU-T "T.JXR" | ISO/IEC 29199 ("JPEG XR") standard once the

* standard has been adopted; and

* (2) to develop the JPEG XR standard:

*

* Microsoft Corporation and any subsequent contributors to the development

* of this software grant ITU/ISO/IEC all rights necessary to include

* the originally developed software module or modifications thereof in the

* JPEG XR standard and to permit ITU/ISO/IEC to offer such a royalty-free,

* worldwide, non-exclusive copyright license to copy, distribute, and make

* derivative works of this software module or modifications thereof for

* use in products claiming conformance to the JPEG XR standard as

* specified by ITU-T T.832 | ISO/IEC 29199-2, and to the extent that

* such originally developed software module or portions of it are included

* in an ITU/ISO/IEC standard. To the extent that the original contributors

* may own patent rights that would be required to make, use, or sell the

* originally developed software module or portions thereof included in the

* ITU/ISO/IEC standard in a conforming product, the contributors will

* assure ITU/ISO/IEC that they are willing to negotiate licenses under

* reasonable and non-discriminatory terms and conditions with

* applicants throughout the world and in accordance with their patent

* rights declarations made to ITU/ISO/IEC (if any).

*

* Microsoft, any subsequent contributors, and ITU/ISO/IEC additionally

* gives You a free license to this software module or modifications

* thereof for the sole purpose of developing the JPEG XR standard.

*

******** end of section to be removed when the standard is published *****

*

* Microsoft Corporation retains full right to modify and use the code

* for its own purpose, to assign or donate the code to a third party,

* and to inhibit third parties from using the code for products that

* do not conform to the JPEG XR standard as specified by ITU-T T.832 |

* ISO/IEC 29199-2.

*

* This copyright notice must be included in all copies or derivative

* works.

*

* Copyright (c) ITU-T/ISO/IEC 2008, 2009.

***********************************************************************/

#ifdef _MSC_VER

#pragma comment (user,"$Id: flags.c,v 1.10 2012-02-16 16:36:25 thor Exp $")

#endif

# include "jxr_priv.h"

# include <assert.h>

unsigned jxr_get_IMAGE_WIDTH(jxr_image_t image)

{

    return image->width1 + 1;

}

unsigned jxr_get_IMAGE_HEIGHT(jxr_image_t image)

{

    return image->height1 + 1;

}

unsigned jxr_get_EXTENDED_IMAGE_WIDTH(jxr_image_t image)

{

    return image->extended_width;

}

unsigned jxr_get_EXTENDED_IMAGE_HEIGHT(jxr_image_t image)

{

    return image->extended_height;

}

int jxr_get_TILING_FLAG(jxr_image_t image)

{

    if (TILING_FLAG(image))

        return 1;

    else

        return 0;

}

unsigned jxr_get_TILE_COLUMNS(jxr_image_t image)

{

    return image->tile_columns + 1;

}

unsigned jxr_get_TILE_ROWS(jxr_image_t image)

{

    return image->tile_rows + 1;

}

int jxr_get_TILE_WIDTH(jxr_image_t image, unsigned column)

{

    if (column > image->tile_columns) {

        return 0;

    } else if (column == image->tile_columns) {

        if (column == 0)

            return EXTENDED_WIDTH_BLOCKS(image);

        else

            return EXTENDED_WIDTH_BLOCKS(image) - image->tile_column_position[column-1];

    } else {

        return image->tile_column_width[column];

    }

}

int jxr_get_TILE_HEIGHT(jxr_image_t image, unsigned row)

{

    if (row > image->tile_rows) {

        return 0;

    } else if (row == image->tile_rows) {

        if (row == 0)

            return EXTENDED_HEIGHT_BLOCKS(image);

        else

            return EXTENDED_HEIGHT_BLOCKS(image) - image->tile_row_position[row-1];

    } else {

        return image->tile_row_height[row];

    }

}

int jxr_get_ALPHACHANNEL_FLAG(jxr_image_t image)

{

    if (ALPHACHANNEL_FLAG(image))

        return 1;

    else

        return 0;

}

void jxr_set_ALPHA_IMAGE_PLANE_FLAG(jxr_image_t image, int flag, int premultiplied)

{

    assert(flag == 0 || flag == 1);

    assert(premultiplied == 0 || premultiplied == 1);

    if (flag == 1) {

      image->header_flags2 |= 0x01;

    } else {

      image->header_flags2 &= ~0x01;

    }

    if (premultiplied) {

      image->header_flags2 |= 0x02;

    } else {

      image->header_flags2 &= ~0x02;

    }

}

int jxr_get_ALPHA_PREMULTIPLIED_FLAG(jxr_image_t image)

{

  if (image->header_flags2 & 0x02)

    return 1;

  return 0;

}

int jxr_get_ALPHA_PRESENCE_FLAG(jxr_image_t image)

{

  if (image->header_flags2 & 0x01)

    return 1;

  return 0;

}

/*

* $Log: flags.c,v $

* Revision 1.10  2012-02-16 16:36:25  thor

* Heavily reworked, but not yet tested.

*

* Revision 1.9  2011-04-28 08:45:42  thor

* Fixed compiler warnings, ported to gcc 4.4, removed obsolete files.

*

* Revision 1.8  2011-03-04 12:12:12  thor

* Bumped to 1.16. Fixed RGB-YOnly handling, including the handling of

* YOnly for which a new -f flag has been added.

*

* Revision 1.7  2010-03-31 07:50:58  thor

* Replaced by the latest MS version.

*

*

* Revision 1.7 2009/05/29 12:00:00 microsoft

* Reference Software v1.6 updates.

*

* Revision 1.6 2009/04/13 12:00:00 microsoft

* Reference Software v1.5 updates.

*

* Revision 1.5 2008/03/06 02:05:48 steve

* Distributed quantization

*

* Revision 1.4 2008/02/26 23:52:44 steve

* Remove ident for MS compilers.

*

* Revision 1.3 2008/02/26 23:28:53 steve

* Remove C99 requirements from the API.

*

* Revision 1.2 2007/11/26 01:47:15 steve

* Add copyright notices per MS request.

*

* Revision 1.1 2007/06/06 17:19:12 steve

* Introduce to CVS.

*

*/