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Diffstat (limited to 'gpr/source/lib/dng_sdk/dng_mosaic_info.h')
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1 files changed, 200 insertions, 0 deletions
diff --git a/gpr/source/lib/dng_sdk/dng_mosaic_info.h b/gpr/source/lib/dng_sdk/dng_mosaic_info.h new file mode 100644 index 0000000..477c105 --- /dev/null +++ b/gpr/source/lib/dng_sdk/dng_mosaic_info.h @@ -0,0 +1,200 @@ +/*****************************************************************************/
+// Copyright 2006-2007 Adobe Systems Incorporated
+// All Rights Reserved.
+//
+// NOTICE: Adobe permits you to use, modify, and distribute this file in
+// accordance with the terms of the Adobe license agreement accompanying it.
+/*****************************************************************************/
+
+/* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_mosaic_info.h#1 $ */
+/* $DateTime: 2012/05/30 13:28:51 $ */
+/* $Change: 832332 $ */
+/* $Author: tknoll $ */
+
+/** \file
+ * Support for descriptive information about color filter array patterns.
+ */
+
+/*****************************************************************************/
+
+#ifndef __dng_mosaic_info__
+#define __dng_mosaic_info__
+
+/*****************************************************************************/
+
+#include "dng_classes.h"
+#include "dng_rect.h"
+#include "dng_sdk_limits.h"
+#include "dng_types.h"
+
+/*****************************************************************************/
+
+/// \brief Support for describing color filter array patterns and manipulating mosaic sample data.
+///
+/// See CFAPattern tag in \ref spec_tiff_ep "TIFF/EP specification" and CFAPlaneColor, CFALayout, and BayerGreenSplit
+/// tags in the \ref spec_dng "DNG 1.1.0 specification".
+
+class dng_mosaic_info
+ {
+
+ public:
+
+ /// Size of fCFAPattern.
+
+ dng_point fCFAPatternSize;
+
+ /// CFA pattern from CFAPattern tag in the \ref spec_tiff_ep "TIFF/EP specification."
+
+ uint8 fCFAPattern [kMaxCFAPattern] [kMaxCFAPattern];
+
+ /// Number of color planes in DNG input.
+
+ uint32 fColorPlanes;
+
+ uint8 fCFAPlaneColor [kMaxColorPlanes];
+
+ /// Value of CFALayout tag in the \ref spec_dng "DNG 1.3 specification."
+ /// CFALayout describes the spatial layout of the CFA. The currently defined values are:
+ /// - 1 = Rectangular (or square) layout.
+ /// - 2 = Staggered layout A: even columns are offset down by 1/2 row.
+ /// - 3 = Staggered layout B: even columns are offset up by 1/2 row.
+ /// - 4 = Staggered layout C: even rows are offset right by 1/2 column.
+ /// - 5 = Staggered layout D: even rows are offset left by 1/2 column.
+ /// - 6 = Staggered layout E: even rows are offset up by 1/2 row, even columns are offset left by 1/2 column.
+ /// - 7 = Staggered layout F: even rows are offset up by 1/2 row, even columns are offset right by 1/2 column.
+ /// - 8 = Staggered layout G: even rows are offset down by 1/2 row, even columns are offset left by 1/2 column.
+ /// - 9 = Staggered layout H: even rows are offset down by 1/2 row, even columns are offset right by 1/2 column.
+
+ uint32 fCFALayout;
+
+ /// Value of BayerGreeSplit tag in DNG file.
+ /// BayerGreenSplit only applies to CFA images using a Bayer pattern filter array. This tag
+ /// specifies, in arbitrary units, how closely the values of the green pixels in the blue/green rows
+ /// track the values of the green pixels in the red/green rows.
+ ///
+ /// A value of zero means the two kinds of green pixels track closely, while a non-zero value
+ /// means they sometimes diverge. The useful range for this tag is from 0 (no divergence) to about
+ /// 5000 (large divergence).
+
+ uint32 fBayerGreenSplit;
+
+ protected:
+
+ dng_point fSrcSize;
+
+ dng_point fCroppedSize;
+
+ real64 fAspectRatio;
+
+ public:
+
+ dng_mosaic_info ();
+
+ virtual ~dng_mosaic_info ();
+
+ virtual void Parse (dng_host &host,
+ dng_stream &stream,
+ dng_info &info);
+
+ virtual void PostParse (dng_host &host,
+ dng_negative &negative);
+
+ /// Returns whether the RAW data in this DNG file from a color filter array (mosaiced) source.
+ /// \retval true if this DNG file is from a color filter array (mosiaced) source.
+
+ bool IsColorFilterArray () const
+ {
+ return fCFAPatternSize != dng_point (0, 0);
+ }
+
+ /// Enable generating four-plane output from three-plane Bayer input.
+ /// Extra plane is a second version of the green channel. First green is produced
+ /// using green mosaic samples from one set of rows/columns (even/odd) and the second
+ /// green channel is produced using the other set of rows/columns. One can compare the
+ /// two versions to judge whether BayerGreenSplit needs to be set for a given input source.
+
+ virtual bool SetFourColorBayer ();
+
+ /// Returns scaling factor relative to input size needed to capture output data.
+ /// Staggered (or rotated) sensing arrays are produced to a larger output than the number of input samples.
+ /// This method indicates how much larger.
+ /// \retval a point with integer scaling factors for the horizotal and vertical dimensions.
+
+ virtual dng_point FullScale () const;
+
+ /// Returns integer factors by which mosaic data must be downsampled to produce an image which is as close
+ /// to prefSize as possible in longer dimension, but no smaller than minSize.
+ /// \param minSize Number of pixels as minium for longer dimension of downsampled image.
+ /// \param prefSize Number of pixels as target for longer dimension of downsampled image.
+ /// \param cropFactor Faction of the image to be used after cropping.
+ /// \retval Point containing integer factors by which image must be downsampled.
+
+ virtual dng_point DownScale (uint32 minSize,
+ uint32 prefSize,
+ real64 cropFactor) const;
+
+ /// Return size of demosaiced image for passed in downscaling factor.
+ /// \param downScale Integer downsampling factor obtained from DownScale method.
+ /// \retval Size of resulting demosaiced image.
+
+ virtual dng_point DstSize (const dng_point &downScale) const;
+
+ /// Demosaic interpolation of a single plane for non-downsampled case.
+ /// \param host dng_host to use for buffer allocation requests, user cancellation testing, and progress updates.
+ /// \param negative DNG negative of mosaiced data.
+ /// \param srcImage Source image for mosaiced data.
+ /// \param dstImage Destination image for resulting interpolated data.
+ /// \param srcPlane Which plane to interpolate.
+
+ virtual void InterpolateGeneric (dng_host &host,
+ dng_negative &negative,
+ const dng_image &srcImage,
+ dng_image &dstImage,
+ uint32 srcPlane = 0) const;
+
+ /// Demosaic interpolation of a single plane for downsampled case.
+ /// \param host dng_host to use for buffer allocation requests, user cancellation testing, and progress updates.
+ /// \param negative DNG negative of mosaiced data.
+ /// \param srcImage Source image for mosaiced data.
+ /// \param dstImage Destination image for resulting interpolated data.
+ /// \param downScale Amount (in horizontal and vertical) by which to subsample image.
+ /// \param srcPlane Which plane to interpolate.
+
+ virtual void InterpolateFast (dng_host &host,
+ dng_negative &negative,
+ const dng_image &srcImage,
+ dng_image &dstImage,
+ const dng_point &downScale,
+ uint32 srcPlane = 0) const;
+
+ /// Demosaic interpolation of a single plane. Chooses between generic and fast interpolators based on parameters.
+ /// \param host dng_host to use for buffer allocation requests, user cancellation testing, and progress updates.
+ /// \param negative DNG negative of mosaiced data.
+ /// \param srcImage Source image for mosaiced data.
+ /// \param dstImage Destination image for resulting interpolated data.
+ /// \param downScale Amount (in horizontal and vertical) by which to subsample image.
+ /// \param srcPlane Which plane to interpolate.
+
+ virtual void Interpolate (dng_host &host,
+ dng_negative &negative,
+ const dng_image &srcImage,
+ dng_image &dstImage,
+ const dng_point &downScale,
+ uint32 srcPlane = 0) const;
+
+ protected:
+
+ virtual bool IsSafeDownScale (const dng_point &downScale) const;
+
+ uint32 SizeForDownScale (const dng_point &downScale) const;
+
+ virtual bool ValidSizeDownScale (const dng_point &downScale,
+ uint32 minSize) const;
+
+ };
+
+/*****************************************************************************/
+
+#endif
+
+/*****************************************************************************/
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