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3rdparty/jpegxr/jpegxr_flags.cpp

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+
+/*************************************************************************
+*
+* 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.
+*
+* 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 1.5 2008/03/06 02:05:48 steve Exp $")
+#else
+#ident "$Id: flags.c,v 1.5 2008/03/06 02:05:48 steve 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;
+}
+
+jxrc_t_pixelFormat jxr_get_pixel_format(jxr_image_t image)
+{
+    return image->ePixelFormat;
+}
+
+/*
+* $Log: flags.c,v $
+*
+* 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.
+*
+*/
+