diff options
Diffstat (limited to 'gpr/source/lib/dng_sdk/dng_resample.h')
| -rw-r--r-- | gpr/source/lib/dng_sdk/dng_resample.h | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/gpr/source/lib/dng_sdk/dng_resample.h b/gpr/source/lib/dng_sdk/dng_resample.h new file mode 100644 index 0000000..c6bc6f9 --- /dev/null +++ b/gpr/source/lib/dng_sdk/dng_resample.h @@ -0,0 +1,261 @@ +/*****************************************************************************/
+// 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_resample.h#1 $ */
+/* $DateTime: 2012/05/30 13:28:51 $ */
+/* $Change: 832332 $ */
+/* $Author: tknoll $ */
+
+/*****************************************************************************/
+
+#ifndef __dng_resample__
+#define __dng_resample__
+
+/*****************************************************************************/
+
+#include "dng_assertions.h"
+#include "dng_auto_ptr.h"
+#include "dng_classes.h"
+#include "dng_memory.h"
+#include "dng_point.h"
+#include "dng_types.h"
+
+/*****************************************************************************/
+
+class dng_resample_function
+ {
+
+ public:
+
+ dng_resample_function ()
+ {
+ }
+
+ virtual ~dng_resample_function ()
+ {
+ }
+
+ virtual real64 Extent () const = 0;
+
+ virtual real64 Evaluate (real64 x) const = 0;
+
+ };
+
+/*****************************************************************************/
+
+class dng_resample_bicubic: public dng_resample_function
+ {
+
+ public:
+
+ virtual real64 Extent () const;
+
+ virtual real64 Evaluate (real64 x) const;
+
+ static const dng_resample_function & Get ();
+
+ };
+
+/******************************************************************************/
+
+const uint32 kResampleSubsampleBits = 7;
+const uint32 kResampleSubsampleCount = 1 << kResampleSubsampleBits;
+const uint32 kResampleSubsampleMask = kResampleSubsampleCount - 1;
+
+/*****************************************************************************/
+
+class dng_resample_coords
+ {
+
+ protected:
+
+ int32 fOrigin;
+
+ AutoPtr<dng_memory_block> fCoords;
+
+ public:
+
+ dng_resample_coords ();
+
+ virtual ~dng_resample_coords ();
+
+ void Initialize (int32 srcOrigin,
+ int32 dstOrigin,
+ uint32 srcCount,
+ uint32 dstCount,
+ dng_memory_allocator &allocator);
+
+ const int32 * Coords (int32 index) const
+ {
+ return fCoords->Buffer_int32 () + (index - fOrigin);
+ }
+
+ int32 Pixel (int32 index) const
+ {
+ return Coords (index) [0] >> kResampleSubsampleBits;
+ }
+
+ };
+
+/*****************************************************************************/
+
+class dng_resample_weights
+ {
+
+ protected:
+
+ uint32 fRadius;
+
+ uint32 fWeightStep;
+
+ AutoPtr<dng_memory_block> fWeights32;
+ AutoPtr<dng_memory_block> fWeights16;
+
+ public:
+
+ dng_resample_weights ();
+
+ virtual ~dng_resample_weights ();
+
+ void Initialize (real64 scale,
+ const dng_resample_function &kernel,
+ dng_memory_allocator &allocator);
+
+ uint32 Radius () const
+ {
+ return fRadius;
+ }
+
+ uint32 Width () const
+ {
+ return fRadius * 2;
+ }
+
+ int32 Offset () const
+ {
+ return 1 - (int32) fRadius;
+ }
+
+ uint32 Step () const
+ {
+ return fWeightStep;
+ }
+
+ const real32 *Weights32 (uint32 fract) const
+ {
+
+ DNG_ASSERT (fWeights32->Buffer (), "Weights32 is NULL");
+
+ return fWeights32->Buffer_real32 () + fract * fWeightStep;
+
+ }
+
+ const int16 *Weights16 (uint32 fract) const
+ {
+
+ DNG_ASSERT (fWeights16->Buffer (), "Weights16 is NULL");
+
+ return fWeights16->Buffer_int16 () + fract * fWeightStep;
+
+ }
+
+ };
+
+/*****************************************************************************/
+
+const uint32 kResampleSubsampleBits2D = 5;
+const uint32 kResampleSubsampleCount2D = 1 << kResampleSubsampleBits2D;
+const uint32 kResampleSubsampleMask2D = kResampleSubsampleCount2D - 1;
+
+/*****************************************************************************/
+
+class dng_resample_weights_2d
+ {
+
+ protected:
+
+ uint32 fRadius;
+
+ uint32 fRowStep;
+ uint32 fColStep;
+
+ AutoPtr<dng_memory_block> fWeights32;
+ AutoPtr<dng_memory_block> fWeights16;
+
+ public:
+
+ dng_resample_weights_2d ();
+
+ virtual ~dng_resample_weights_2d ();
+
+ void Initialize (const dng_resample_function &kernel,
+ dng_memory_allocator &allocator);
+
+ uint32 Radius () const
+ {
+ return fRadius;
+ }
+
+ uint32 Width () const
+ {
+ return fRadius * 2;
+ }
+
+ int32 Offset () const
+ {
+ return 1 - (int32) fRadius;
+ }
+
+ uint32 RowStep () const
+ {
+ return fRowStep;
+ }
+
+ uint32 ColStep () const
+ {
+ return fColStep;
+ }
+
+ const real32 *Weights32 (dng_point fract) const
+ {
+
+ DNG_ASSERT (fWeights32->Buffer (), "Weights32 is NULL");
+
+ const uint32 offset = fract.v * fRowStep + fract.h * fColStep;
+
+ return fWeights32->Buffer_real32 () + offset;
+
+ }
+
+ const int16 *Weights16 (dng_point fract) const
+ {
+
+ DNG_ASSERT (fWeights16->Buffer (), "Weights16 is NULL");
+
+ const uint32 offset = fract.v * fRowStep + fract.h * fColStep;
+
+ return fWeights16->Buffer_int16 () + offset;
+
+ }
+
+ };
+
+/*****************************************************************************/
+
+void ResampleImage (dng_host &host,
+ const dng_image &srcImage,
+ dng_image &dstImage,
+ const dng_rect &srcBounds,
+ const dng_rect &dstBounds,
+ const dng_resample_function &kernel);
+
+/*****************************************************************************/
+
+#endif
+
+/*****************************************************************************/
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