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//////////////////////////////////////////////////////////////////////////////

//

//  Copyright (C) Microsoft Corporation.  All Rights Reserved.

//

//  File:       d3dx11tex.h

//  Content:    D3DX11 texturing APIs

//

//////////////////////////////////////////////////////////////////////////////

#include "d3dx11.h"

#ifndef __D3DX11TEX_H__

#define __D3DX11TEX_H__

//----------------------------------------------------------------------------

// D3DX11_FILTER flags:

// ------------------

//

// A valid filter must contain one of these values:

//

//  D3DX11_FILTER_NONE

//      No scaling or filtering will take place.  Pixels outside the bounds

//      of the source image are assumed to be transparent black.

//  D3DX11_FILTER_POINT

//      Each destination pixel is computed by sampling the nearest pixel

//      from the source image.

//  D3DX11_FILTER_LINEAR

//      Each destination pixel is computed by linearly interpolating between

//      the nearest pixels in the source image.  This filter works best 

//      when the scale on each axis is less than 2.

//  D3DX11_FILTER_TRIANGLE

//      Every pixel in the source image contributes equally to the

//      destination image.  This is the slowest of all the filters.

//  D3DX11_FILTER_BOX

//      Each pixel is computed by averaging a 2x2(x2) box pixels from 

//      the source image. Only works when the dimensions of the 

//      destination are half those of the source. (as with mip maps)

//

// And can be OR'd with any of these optional flags:

//

//  D3DX11_FILTER_MIRROR_U

//      Indicates that pixels off the edge of the texture on the U-axis

//      should be mirrored, not wraped.

//  D3DX11_FILTER_MIRROR_V

//      Indicates that pixels off the edge of the texture on the V-axis

//      should be mirrored, not wraped.

//  D3DX11_FILTER_MIRROR_W

//      Indicates that pixels off the edge of the texture on the W-axis

//      should be mirrored, not wraped.

//  D3DX11_FILTER_MIRROR

//      Same as specifying D3DX11_FILTER_MIRROR_U | D3DX11_FILTER_MIRROR_V |

//      D3DX11_FILTER_MIRROR_V

//  D3DX11_FILTER_DITHER

//      Dithers the resulting image using a 4x4 order dither pattern.

//  D3DX11_FILTER_SRGB_IN

//      Denotes that the input data is in sRGB (gamma 2.2) colorspace.

//  D3DX11_FILTER_SRGB_OUT

//      Denotes that the output data is in sRGB (gamma 2.2) colorspace.

//  D3DX11_FILTER_SRGB

//      Same as specifying D3DX11_FILTER_SRGB_IN | D3DX11_FILTER_SRGB_OUT

//

//----------------------------------------------------------------------------

typedef enum D3DX11_FILTER_FLAG

{

    D3DX11_FILTER_NONE            =   (1 << 0),

    D3DX11_FILTER_POINT           =   (2 << 0),

    D3DX11_FILTER_LINEAR          =   (3 << 0),

    D3DX11_FILTER_TRIANGLE        =   (4 << 0),

    D3DX11_FILTER_BOX             =   (5 << 0),

    D3DX11_FILTER_MIRROR_U        =   (1 << 16),

    D3DX11_FILTER_MIRROR_V        =   (2 << 16),

    D3DX11_FILTER_MIRROR_W        =   (4 << 16),

    D3DX11_FILTER_MIRROR          =   (7 << 16),

    D3DX11_FILTER_DITHER          =   (1 << 19),

    D3DX11_FILTER_DITHER_DIFFUSION=   (2 << 19),

    D3DX11_FILTER_SRGB_IN         =   (1 << 21),

    D3DX11_FILTER_SRGB_OUT        =   (2 << 21),

    D3DX11_FILTER_SRGB            =   (3 << 21),

} D3DX11_FILTER_FLAG;

//----------------------------------------------------------------------------

// D3DX11_NORMALMAP flags:

// ---------------------

// These flags are used to control how D3DX11ComputeNormalMap generates normal

// maps.  Any number of these flags may be OR'd together in any combination.

//

//  D3DX11_NORMALMAP_MIRROR_U

//      Indicates that pixels off the edge of the texture on the U-axis

//      should be mirrored, not wraped.

//  D3DX11_NORMALMAP_MIRROR_V

//      Indicates that pixels off the edge of the texture on the V-axis

//      should be mirrored, not wraped.

//  D3DX11_NORMALMAP_MIRROR

//      Same as specifying D3DX11_NORMALMAP_MIRROR_U | D3DX11_NORMALMAP_MIRROR_V

//  D3DX11_NORMALMAP_INVERTSIGN

//      Inverts the direction of each normal 

//  D3DX11_NORMALMAP_COMPUTE_OCCLUSION

//      Compute the per pixel Occlusion term and encodes it into the alpha.

//      An Alpha of 1 means that the pixel is not obscured in anyway, and

//      an alpha of 0 would mean that the pixel is completly obscured.

//

//----------------------------------------------------------------------------

typedef enum D3DX11_NORMALMAP_FLAG

{

    D3DX11_NORMALMAP_MIRROR_U          =   (1 << 16),

    D3DX11_NORMALMAP_MIRROR_V          =   (2 << 16),

    D3DX11_NORMALMAP_MIRROR            =   (3 << 16),

    D3DX11_NORMALMAP_INVERTSIGN        =   (8 << 16),

    D3DX11_NORMALMAP_COMPUTE_OCCLUSION =   (16 << 16),

} D3DX11_NORMALMAP_FLAG;

//----------------------------------------------------------------------------

// D3DX11_CHANNEL flags:

// -------------------

// These flags are used by functions which operate on or more channels

// in a texture.

//

// D3DX11_CHANNEL_RED

//     Indicates the red channel should be used

// D3DX11_CHANNEL_BLUE

//     Indicates the blue channel should be used

// D3DX11_CHANNEL_GREEN

//     Indicates the green channel should be used

// D3DX11_CHANNEL_ALPHA

//     Indicates the alpha channel should be used

// D3DX11_CHANNEL_LUMINANCE

//     Indicates the luminaces of the red green and blue channels should be 

//     used.

//

//----------------------------------------------------------------------------

typedef enum D3DX11_CHANNEL_FLAG

{

    D3DX11_CHANNEL_RED           =    (1 << 0),

    D3DX11_CHANNEL_BLUE          =    (1 << 1),

    D3DX11_CHANNEL_GREEN         =    (1 << 2),

    D3DX11_CHANNEL_ALPHA         =    (1 << 3),

    D3DX11_CHANNEL_LUMINANCE     =    (1 << 4),

} D3DX11_CHANNEL_FLAG;

//----------------------------------------------------------------------------

// D3DX11_IMAGE_FILE_FORMAT:

// ---------------------

// This enum is used to describe supported image file formats.

//

//----------------------------------------------------------------------------

typedef enum D3DX11_IMAGE_FILE_FORMAT

{

    D3DX11_IFF_BMP         = 0,

    D3DX11_IFF_JPG         = 1,

    D3DX11_IFF_PNG         = 3,

    D3DX11_IFF_DDS         = 4,

    D3DX11_IFF_TIFF               = 10,

    D3DX11_IFF_GIF                = 11,

    D3DX11_IFF_WMP                = 12,

    D3DX11_IFF_FORCE_DWORD = 0x7fffffff

} D3DX11_IMAGE_FILE_FORMAT;

//----------------------------------------------------------------------------

// D3DX11_SAVE_TEXTURE_FLAG:

// ---------------------

// This enum is used to support texture saving options.

//

//----------------------------------------------------------------------------

typedef enum D3DX11_SAVE_TEXTURE_FLAG

{

    D3DX11_STF_USEINPUTBLOB      = 0x0001,

} D3DX11_SAVE_TEXTURE_FLAG;

//----------------------------------------------------------------------------

// D3DX11_IMAGE_INFO:

// ---------------

// This structure is used to return a rough description of what the

// the original contents of an image file looked like.

// 

//  Width

//      Width of original image in pixels

//  Height

//      Height of original image in pixels

//  Depth

//      Depth of original image in pixels

//  ArraySize

//      Array size in textures

//  MipLevels

//      Number of mip levels in original image

//  MiscFlags

//      Miscellaneous flags

//  Format

//      D3D format which most closely describes the data in original image

//  ResourceDimension

//      D3D11_RESOURCE_DIMENSION representing the dimension of texture stored in the file.

//      D3D11_RESOURCE_DIMENSION_TEXTURE1D, 2D, 3D

//  ImageFileFormat

//      D3DX11_IMAGE_FILE_FORMAT representing the format of the image file.

//----------------------------------------------------------------------------

typedef struct D3DX11_IMAGE_INFO

{

    UINT                        Width;

    UINT                        Height;

    UINT                        Depth;

    UINT                        ArraySize;

    UINT                        MipLevels;

    UINT                        MiscFlags;

    DXGI_FORMAT                 Format;

    D3D11_RESOURCE_DIMENSION    ResourceDimension;

    D3DX11_IMAGE_FILE_FORMAT    ImageFileFormat;

} D3DX11_IMAGE_INFO;

#ifdef __cplusplus

extern "C" {

#endif //__cplusplus

//////////////////////////////////////////////////////////////////////////////

// Image File APIs ///////////////////////////////////////////////////////////

//////////////////////////////////////////////////////////////////////////////

//----------------------------------------------------------------------------

// D3DX11_IMAGE_LOAD_INFO:

// ---------------

// This structure can be optionally passed in to texture loader APIs to 

// control how textures get loaded. Pass in D3DX11_DEFAULT for any of these

// to have D3DX automatically pick defaults based on the source file.

// 

//  Width

//      Rescale texture to Width texels wide

//  Height

//      Rescale texture to Height texels high

//  Depth

//      Rescale texture to Depth texels deep

//  FirstMipLevel

//      First mip level to load

//  MipLevels

//      Number of mip levels to load after the first level

//  Usage

//      D3D11_USAGE flag for the new texture

//  BindFlags

//      D3D11 Bind flags for the new texture

//  CpuAccessFlags

//      D3D11 CPU Access flags for the new texture

//  MiscFlags

//      Reserved. Must be 0

//  Format

//      Resample texture to the specified format

//  Filter

//      Filter the texture using the specified filter (only when resampling)

//  MipFilter

//      Filter the texture mip levels using the specified filter (only if 

//      generating mips)

//  pSrcInfo

//      (optional) pointer to a D3DX11_IMAGE_INFO structure that will get 

//      populated with source image information

//----------------------------------------------------------------------------

typedef struct D3DX11_IMAGE_LOAD_INFO

{

    UINT                       Width;

    UINT                       Height;

    UINT                       Depth;

    UINT                       FirstMipLevel;

    UINT                       MipLevels;

    D3D11_USAGE                Usage;

    UINT                       BindFlags;

    UINT                       CpuAccessFlags;

    UINT                       MiscFlags;

    DXGI_FORMAT                Format;

    UINT                       Filter;

    UINT                       MipFilter;

    D3DX11_IMAGE_INFO*         pSrcInfo;

#ifdef __cplusplus

    D3DX11_IMAGE_LOAD_INFO()

    {

        Width = D3DX11_DEFAULT;

        Height = D3DX11_DEFAULT;

        Depth = D3DX11_DEFAULT;

        FirstMipLevel = D3DX11_DEFAULT;

        MipLevels = D3DX11_DEFAULT;

        Usage = (D3D11_USAGE) D3DX11_DEFAULT;

        BindFlags = D3DX11_DEFAULT;

        CpuAccessFlags = D3DX11_DEFAULT;

        MiscFlags = D3DX11_DEFAULT;

        Format = DXGI_FORMAT_FROM_FILE;

        Filter = D3DX11_DEFAULT;

        MipFilter = D3DX11_DEFAULT;

        pSrcInfo = NULL;

    }  

#endif

} D3DX11_IMAGE_LOAD_INFO;

//-------------------------------------------------------------------------------

// GetImageInfoFromFile/Resource/Memory:

// ------------------------------

// Fills in a D3DX11_IMAGE_INFO struct with information about an image file.

//

// Parameters:

//  pSrcFile

//      File name of the source image.

//  pSrcModule

//      Module where resource is located, or NULL for module associated

//      with image the os used to create the current process.

//  pSrcResource

//      Resource name.

//  pSrcData

//      Pointer to file in memory.

//  SrcDataSize

//      Size in bytes of file in memory.

//  pPump

//      Optional pointer to a thread pump object to use.

//  pSrcInfo

//      Pointer to a D3DX11_IMAGE_INFO structure to be filled in with the 

//      description of the data in the source image file.

//  pHResult

//      Pointer to a memory location to receive the return value upon completion.

//      Maybe NULL if not needed.

//      If pPump != NULL, pHResult must be a valid memory location until the

//      the asynchronous execution completes.

//-------------------------------------------------------------------------------

HRESULT WINAPI

    D3DX11GetImageInfoFromFileA(

        LPCSTR                    pSrcFile,

        ID3DX11ThreadPump*        pPump,

        D3DX11_IMAGE_INFO*        pSrcInfo,

        HRESULT*                  pHResult);

HRESULT WINAPI

    D3DX11GetImageInfoFromFileW(

        LPCWSTR                   pSrcFile,

        ID3DX11ThreadPump*        pPump,

        D3DX11_IMAGE_INFO*        pSrcInfo,

        HRESULT*                  pHResult);

#ifdef UNICODE

#define D3DX11GetImageInfoFromFile D3DX11GetImageInfoFromFileW

#else

#define D3DX11GetImageInfoFromFile D3DX11GetImageInfoFromFileA

#endif

HRESULT WINAPI

    D3DX11GetImageInfoFromResourceA(

        HMODULE                   hSrcModule,

        LPCSTR                    pSrcResource,

        ID3DX11ThreadPump*        pPump,

        D3DX11_IMAGE_INFO*        pSrcInfo,

        HRESULT*                  pHResult);

HRESULT WINAPI

    D3DX11GetImageInfoFromResourceW(

        HMODULE                   hSrcModule,

        LPCWSTR                   pSrcResource,

        ID3DX11ThreadPump*        pPump,

        D3DX11_IMAGE_INFO*        pSrcInfo,

        HRESULT*                  pHResult);

#ifdef UNICODE

#define D3DX11GetImageInfoFromResource D3DX11GetImageInfoFromResourceW

#else

#define D3DX11GetImageInfoFromResource D3DX11GetImageInfoFromResourceA

#endif

HRESULT WINAPI

    D3DX11GetImageInfoFromMemory(

        LPCVOID                   pSrcData,

        SIZE_T                    SrcDataSize,

        ID3DX11ThreadPump*        pPump,

        D3DX11_IMAGE_INFO*        pSrcInfo,

        HRESULT*                  pHResult);

//////////////////////////////////////////////////////////////////////////////

// Create/Save Texture APIs //////////////////////////////////////////////////

//////////////////////////////////////////////////////////////////////////////

//----------------------------------------------------------------------------

// D3DX11CreateTextureFromFile/Resource/Memory:

// D3DX11CreateShaderResourceViewFromFile/Resource/Memory:

// -----------------------------------

// Create a texture object from a file or resource.

//

// Parameters:

//

//  pDevice

//      The D3D device with which the texture is going to be used.

//  pSrcFile

//      File name.

//  hSrcModule

//      Module handle. if NULL, current module will be used.

//  pSrcResource

//      Resource name in module

//  pvSrcData

//      Pointer to file in memory.

//  SrcDataSize

//      Size in bytes of file in memory.

//  pLoadInfo

//      Optional pointer to a D3DX11_IMAGE_LOAD_INFO structure that

//      contains additional loader parameters.

//  pPump

//      Optional pointer to a thread pump object to use.

//  ppTexture

//      [out] Created texture object.

//  ppShaderResourceView

//      [out] Shader resource view object created.

//  pHResult

//      Pointer to a memory location to receive the return value upon completion.

//      Maybe NULL if not needed.

//      If pPump != NULL, pHResult must be a valid memory location until the

//      the asynchronous execution completes.

//

//----------------------------------------------------------------------------

// FromFile

HRESULT WINAPI

    D3DX11CreateShaderResourceViewFromFileA(

        ID3D11Device*               pDevice,

        LPCSTR                      pSrcFile,

        D3DX11_IMAGE_LOAD_INFO      *pLoadInfo,

        ID3DX11ThreadPump*          pPump,

        ID3D11ShaderResourceView**  ppShaderResourceView,

        HRESULT*                    pHResult);

HRESULT WINAPI

    D3DX11CreateShaderResourceViewFromFileW(

        ID3D11Device*               pDevice,

        LPCWSTR                     pSrcFile,

        D3DX11_IMAGE_LOAD_INFO      *pLoadInfo,

        ID3DX11ThreadPump*          pPump,

        ID3D11ShaderResourceView**  ppShaderResourceView,

        HRESULT*                    pHResult);

#ifdef UNICODE

#define D3DX11CreateShaderResourceViewFromFile D3DX11CreateShaderResourceViewFromFileW

#else

#define D3DX11CreateShaderResourceViewFromFile D3DX11CreateShaderResourceViewFromFileA

#endif

HRESULT WINAPI

    D3DX11CreateTextureFromFileA(

        ID3D11Device*               pDevice,

        LPCSTR                      pSrcFile,

        D3DX11_IMAGE_LOAD_INFO      *pLoadInfo,

        ID3DX11ThreadPump*          pPump,

        ID3D11Resource**            ppTexture,

        HRESULT*                    pHResult);

HRESULT WINAPI

    D3DX11CreateTextureFromFileW(

        ID3D11Device*               pDevice,

        LPCWSTR                     pSrcFile,

        D3DX11_IMAGE_LOAD_INFO      *pLoadInfo,

        ID3DX11ThreadPump*          pPump,

        ID3D11Resource**            ppTexture,

        HRESULT*                    pHResult);

#ifdef UNICODE

#define D3DX11CreateTextureFromFile D3DX11CreateTextureFromFileW

#else

#define D3DX11CreateTextureFromFile D3DX11CreateTextureFromFileA

#endif

// FromResource (resources in dll/exes)

HRESULT WINAPI

    D3DX11CreateShaderResourceViewFromResourceA(

        ID3D11Device*              pDevice,

        HMODULE                    hSrcModule,

        LPCSTR                     pSrcResource,

        D3DX11_IMAGE_LOAD_INFO*    pLoadInfo,

        ID3DX11ThreadPump*         pPump,

        ID3D11ShaderResourceView** ppShaderResourceView,

        HRESULT*                   pHResult);

HRESULT WINAPI

    D3DX11CreateShaderResourceViewFromResourceW(

        ID3D11Device*              pDevice,

        HMODULE                    hSrcModule,

        LPCWSTR                    pSrcResource,

        D3DX11_IMAGE_LOAD_INFO*    pLoadInfo,

        ID3DX11ThreadPump*         pPump,

        ID3D11ShaderResourceView** ppShaderResourceView,

        HRESULT*                   pHResult);

#ifdef UNICODE

#define D3DX11CreateShaderResourceViewFromResource D3DX11CreateShaderResourceViewFromResourceW

#else

#define D3DX11CreateShaderResourceViewFromResource D3DX11CreateShaderResourceViewFromResourceA

#endif

HRESULT WINAPI

    D3DX11CreateTextureFromResourceA(

        ID3D11Device*            pDevice,

        HMODULE                  hSrcModule,

        LPCSTR                   pSrcResource,

        D3DX11_IMAGE_LOAD_INFO   *pLoadInfo,  

        ID3DX11ThreadPump*       pPump,  

        ID3D11Resource**         ppTexture,

        HRESULT*                 pHResult);

HRESULT WINAPI

    D3DX11CreateTextureFromResourceW(

        ID3D11Device*           pDevice,

        HMODULE                 hSrcModule,

        LPCWSTR                 pSrcResource,

        D3DX11_IMAGE_LOAD_INFO* pLoadInfo,

        ID3DX11ThreadPump*      pPump,

        ID3D11Resource**        ppTexture,

        HRESULT*                pHResult);

#ifdef UNICODE

#define D3DX11CreateTextureFromResource D3DX11CreateTextureFromResourceW

#else

#define D3DX11CreateTextureFromResource D3DX11CreateTextureFromResourceA

#endif

// FromFileInMemory

HRESULT WINAPI

    D3DX11CreateShaderResourceViewFromMemory(

        ID3D11Device*              pDevice,

        LPCVOID                    pSrcData,

        SIZE_T                     SrcDataSize,

        D3DX11_IMAGE_LOAD_INFO*    pLoadInfo,

        ID3DX11ThreadPump*         pPump,        

        ID3D11ShaderResourceView** ppShaderResourceView,

        HRESULT*                   pHResult);

HRESULT WINAPI

    D3DX11CreateTextureFromMemory(

        ID3D11Device*             pDevice,

        LPCVOID                   pSrcData,

        SIZE_T                    SrcDataSize,

        D3DX11_IMAGE_LOAD_INFO*   pLoadInfo,    

        ID3DX11ThreadPump*        pPump,    

        ID3D11Resource**          ppTexture,

        HRESULT*                  pHResult);

//////////////////////////////////////////////////////////////////////////////

// Misc Texture APIs /////////////////////////////////////////////////////////

//////////////////////////////////////////////////////////////////////////////

//----------------------------------------------------------------------------

// D3DX11_TEXTURE_LOAD_INFO:

// ------------------------

//

//----------------------------------------------------------------------------

typedef struct _D3DX11_TEXTURE_LOAD_INFO

{

    D3D11_BOX       *pSrcBox;

    D3D11_BOX       *pDstBox;

    UINT            SrcFirstMip;

    UINT            DstFirstMip;

    UINT            NumMips;

    UINT            SrcFirstElement;

    UINT            DstFirstElement;

    UINT            NumElements;

    UINT            Filter;

    UINT            MipFilter;

#ifdef __cplusplus

    _D3DX11_TEXTURE_LOAD_INFO()

    {

        pSrcBox = NULL;

        pDstBox = NULL;

        SrcFirstMip = 0;

        DstFirstMip = 0;

        NumMips = D3DX11_DEFAULT;

        SrcFirstElement = 0;

        DstFirstElement = 0;

        NumElements = D3DX11_DEFAULT;

        Filter = D3DX11_DEFAULT;

        MipFilter = D3DX11_DEFAULT;

    }  

#endif

} D3DX11_TEXTURE_LOAD_INFO;

//----------------------------------------------------------------------------

// D3DX11LoadTextureFromTexture:

// ----------------------------

// Load a texture from a texture.

//

// Parameters:

//

//----------------------------------------------------------------------------

HRESULT WINAPI

    D3DX11LoadTextureFromTexture(

                ID3D11DeviceContext       *pContext,

        ID3D11Resource            *pSrcTexture,

        D3DX11_TEXTURE_LOAD_INFO  *pLoadInfo,

        ID3D11Resource            *pDstTexture);

//----------------------------------------------------------------------------

// D3DX11FilterTexture:

// ------------------

// Filters mipmaps levels of a texture.

//

// Parameters:

//  pBaseTexture

//      The texture object to be filtered

//  SrcLevel

//      The level whose image is used to generate the subsequent levels. 

//  MipFilter

//      D3DX11_FILTER flags controlling how each miplevel is filtered.

//      Or D3DX11_DEFAULT for D3DX11_FILTER_BOX,

//

//----------------------------------------------------------------------------

HRESULT WINAPI

    D3DX11FilterTexture(

                ID3D11DeviceContext       *pContext,

        ID3D11Resource            *pTexture,

        UINT                      SrcLevel,

        UINT                      MipFilter);

//----------------------------------------------------------------------------

// D3DX11SaveTextureToFile:

// ----------------------

// Save a texture to a file.

//

// Parameters:

//  pDestFile

//      File name of the destination file

//  DestFormat

//      D3DX11_IMAGE_FILE_FORMAT specifying file format to use when saving.

//  pSrcTexture

//      Source texture, containing the image to be saved

//

//----------------------------------------------------------------------------

HRESULT WINAPI

    D3DX11SaveTextureToFileA(

                ID3D11DeviceContext       *pContext,

        ID3D11Resource            *pSrcTexture,

        D3DX11_IMAGE_FILE_FORMAT    DestFormat,

        LPCSTR                    pDestFile);

HRESULT WINAPI

    D3DX11SaveTextureToFileW(

                ID3D11DeviceContext       *pContext,

        ID3D11Resource            *pSrcTexture,

        D3DX11_IMAGE_FILE_FORMAT    DestFormat,

        LPCWSTR                   pDestFile);

#ifdef UNICODE

#define D3DX11SaveTextureToFile D3DX11SaveTextureToFileW

#else

#define D3DX11SaveTextureToFile D3DX11SaveTextureToFileA

#endif

//----------------------------------------------------------------------------

// D3DX11SaveTextureToMemory:

// ----------------------

// Save a texture to a blob.

//

// Parameters:

//  pSrcTexture

//      Source texture, containing the image to be saved

//  DestFormat

//      D3DX11_IMAGE_FILE_FORMAT specifying file format to use when saving.

//  ppDestBuf

//      address of a d3dxbuffer pointer to return the image data

//  Flags

//      optional flags

//----------------------------------------------------------------------------

HRESULT WINAPI

    D3DX11SaveTextureToMemory(

                ID3D11DeviceContext       *pContext,

        ID3D11Resource*            pSrcTexture,

        D3DX11_IMAGE_FILE_FORMAT   DestFormat,

        ID3D10Blob**               ppDestBuf,

        UINT                       Flags);

//----------------------------------------------------------------------------

// D3DX11ComputeNormalMap:

// ---------------------

// Converts a height map into a normal map.  The (x,y,z) components of each

// normal are mapped to the (r,g,b) channels of the output texture.

//

// Parameters

//  pSrcTexture

//      Pointer to the source heightmap texture 

//  Flags

//      D3DX11_NORMALMAP flags

//  Channel

//      D3DX11_CHANNEL specifying source of height information

//  Amplitude

//      The constant value which the height information is multiplied by.

//  pDestTexture

//      Pointer to the destination texture

//---------------------------------------------------------------------------

HRESULT WINAPI

    D3DX11ComputeNormalMap(

        ID3D11DeviceContext      *pContext,

        ID3D11Texture2D              *pSrcTexture,

        UINT                      Flags,

        UINT                      Channel,

        FLOAT                     Amplitude,

        ID3D11Texture2D              *pDestTexture);

//----------------------------------------------------------------------------

// D3DX11SHProjectCubeMap:

// ----------------------

//  Projects a function represented in a cube map into spherical harmonics.

//

//  Parameters:

//   Order

//      Order of the SH evaluation, generates Order^2 coefs, degree is Order-1

//   pCubeMap

//      CubeMap that is going to be projected into spherical harmonics

//   pROut

//      Output SH vector for Red.

//   pGOut

//      Output SH vector for Green

//   pBOut

//      Output SH vector for Blue        

//

//---------------------------------------------------------------------------

HRESULT WINAPI

    D3DX11SHProjectCubeMap(

        ID3D11DeviceContext                                *pContext,

        __in_range(2,6) UINT                                Order,

        ID3D11Texture2D                                    *pCubeMap,

        __out_ecount(Order*Order) FLOAT                    *pROut,

        __out_ecount_opt(Order*Order) FLOAT                *pGOut,

        __out_ecount_opt(Order*Order) FLOAT                *pBOut);

#ifdef __cplusplus

}

#endif //__cplusplus

#endif //__D3DX11TEX_H__