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95 lines
3.3 KiB
C++
95 lines
3.3 KiB
C++
//--------------------------------------------------------------------------------------
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//CImageSurface
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// Class for storing, manipulating, and copying image data to and from D3D Surfaces
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//
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//--------------------------------------------------------------------------------------
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// (C) 2005 ATI Research, Inc., All rights reserved.
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//--------------------------------------------------------------------------------------
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// Modified from original
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#pragma once
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#include <math.h>
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#include <stdio.h>
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#include "VectorMacros.h"
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#include <ImageBuilderBaseType.h>
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#include <AzCore/PlatformIncl.h>
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#ifndef WCHAR // For non-windows platforms, for Windows-based platforms it will be defined through PlatformIncl.h
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#define WCHAR wchar_t
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#endif // WCHAR
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#ifndef SAFE_DELETE
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#define SAFE_DELETE(p) { if(p) { delete (p); (p)=NULL; } }
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#endif
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#ifndef SAFE_DELETE_ARRAY
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#define SAFE_DELETE_ARRAY(p) { if(p) { delete[] (p); (p)=NULL; } }
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#endif
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//Data types processed by cube map processor
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// note that UNORM data types use the full range
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// of the unsigned integer to represent the range [0, 1] inclusive
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// the float16 datatype is stored as D3Ds S10E5 representation
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#define CP_VAL_UNORM8 0
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#define CP_VAL_UNORM8_BGRA 1
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#define CP_VAL_UNORM16 10
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#define CP_VAL_FLOAT16 20
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#define CP_VAL_FLOAT32 30
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// Type of data used internally by CSurfaceImage
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#define CP_ITYPE float
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namespace ImageProcessingAtom
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{
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//2D images used to store cube faces for processing, note that this class is
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// meant to facilitate the copying of data to and from D3D surfaces hence the name ImageSurface
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class CImageSurface
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{
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public:
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int32 m_Width; //image width
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int32 m_Height; //image height
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int32 m_NumChannels; //number of channels
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CP_ITYPE *m_ImgData; //cubemap image data
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private:
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//fatal error
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void FatalError(const WCHAR *a_Msg);
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public:
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CImageSurface(void);
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void Clear(void);
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void Init(int32 a_Width, int32 a_Height, int32 a_NumChannels);
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//copy data from external buffer into this CImageSurface
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void SetImageData(int32 a_SrcType, int32 a_SrcNumChannels, int32 a_SrcPitch, void *a_SrcDataPtr);
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// copy image data from an external buffer and scale and degamma the data
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void SetImageDataClampDegammaScale(int32 a_SrcType, int32 a_SrcNumChannels, int32 a_SrcPitch, void *a_SrcDataPtr,
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float a_MaxClamp, float a_Degamma, float a_Scale);
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//copy data from this CImageSurface into an external buffer
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void GetImageData(int32 a_DstType, int32 a_DstNumChannels, int32 a_DstPitch, void *a_DstDataPtr);
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//copy image data from an external buffer and scale and gamma the data
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void GetImageDataScaleGamma(int32 a_DstType, int32 a_DstNumChannels, int32 a_DstPitch, void *a_DstDataPtr,
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float a_Scale, float a_Gamma);
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//clear one of the channels in the CSurfaceImage to a particular color
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void ClearChannelConst(int32 a_ChannelIdx, CP_ITYPE a_ClearColor);
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//various image operations that can be performed on the CImageSurface
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void InPlaceVerticalFlip(void);
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void InPlaceHorizonalFlip(void);
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void InPlaceDiagonalUVFlip(void);
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CP_ITYPE *GetSurfaceTexelPtr(int32 a_U, int32 a_V);
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~CImageSurface();
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};
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} // namespace ImageProcessingAtom
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