hxvsurf.h
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _HXVSURF_H_
- #define _HXVSURF_H_
- /*
- * Forward declarations of some interfaces defined or used here-in.
- */
- typedef _INTERFACE IHXBuffer IHXBuffer;
- typedef _INTERFACE IHXValues IHXValues;
- /****************************************************************************
- *
- * Video Surface Data Structures and Constants
- */
- typedef struct _HXBitmapInfoHeader
- {
- UINT32 biSize;
- INT32 biWidth;
- INT32 biHeight;
- UINT16 biPlanes;
- UINT16 biBitCount;
- UINT32 biCompression;
- UINT32 biSizeImage;
- INT32 biXPelsPerMeter;
- INT32 biYPelsPerMeter;
- UINT32 biClrUsed;
- UINT32 biClrImportant;
- UINT32 rcolor;
- UINT32 gcolor;
- UINT32 bcolor;
- } HXBitmapInfoHeader;
- /*
- * HXBitmapInfo structure.
- */
- typedef struct _HXBitmapInfo
- {
- struct
- {
- UINT32 biSize; /* use OFFSETOF(dwBitMask) here */
- INT32 biWidth; /* image width (in pixels) */
- INT32 biHeight; /* image height */
- UINT16 biPlanes; /* # of bitplanes; always use 1 */
- UINT16 biBitCount; /* average # bits/pixel */
- UINT32 biCompression; /* one of the RMA_... FOURCC codes */
- UINT32 biSizeImage; /* = width * height * bitCount / 8 */
- INT32 biXPelsPerMeter;/* always 0 */
- INT32 biYPelsPerMeter;/* always 0 */
- UINT32 biClrUsed; /* !0, if 8-bit RGB; 0, otherwise */
- UINT32 biClrImportant; /* !0, if 8-bit RGB; 0, otherwise */
- } bmiHeader;
- union
- {
- UINT32 dwBitMask[3]; /* color masks (for BI_BITFIELDS) */
- UINT32 dwPalette[256]; /* palette (for 8-bit RGB image) */
- } un;
- } HXBitmapInfo;
- typedef UINT32 HX_COMPRESSION_TYPE;
- /*
- * Structure for source inputs used in IHXVideoSurface2::ColorConvert
- */
- typedef struct _tagSourceInputStruct
- {
- UCHAR* *aSrcInput;
- INT32 *aSrcPitch;
- INT32 nNumInputs;
- } SourceInputStruct;
- /*
- * Structure for alpha blending in IHXVideoSurface2
- */
- typedef struct _tagAlphaStruct
- {
- UCHAR* pBuffer; /* buffer for source image data */
- UINT32 ulFourCC; /* fourcc of pBuffer */
- INT32 lPitch; /* pitch of pBuffer */
- UINT32 ulImageWidth; /* source image width */
- UINT32 ulImageHeight; /* source image height */
- HXxRect rcImageRect; /* subrect of src image requested */
- } AlphaStruct;
- /*
- * Structure for IHXVideoSurface2::GetVideoMem
- */
- typedef struct _tagVideoMemStruct
- {
- UCHAR* pVidMem; /* pointer to video memory */
- INT32 lPitch; /* pitch of pVidMem */
- HXBitmapInfoHeader bmi; /* desciption of pVidMem */
- AlphaStruct* pAlphaList; /* alpha blending list */
- UINT32 ulCount; /* alpha blending list length */
- } VideoMemStruct;
- /*
- * Windows DIB formats & MKFOURCC() macro:
- */
- #ifndef BI_RGB
- #define BI_RGB 0L /* RGB-8, 16, 24, or 32 */
- #define BI_RLE8 1L /* 8-bit RLE compressed image */
- #define BI_RLE4 2L /* 4-bit RLE compressed image */
- #define BI_BITFIELDS 3L /* RGB 555, 565, etc. */
- #endif
- #ifndef MKFOURCC
- #define MKFOURCC(c0,c1,c2,c3)
- ((UINT32)(BYTE)(c0) | ((UINT32)(BYTE)(c1) << 8) |
- ((UINT32)(BYTE)(c2) << 16) | ((UINT32)(BYTE)(c3) << 24))
- #endif
- /*
- * RMA image formats:
- */
- #define HX_RGB BI_RGB /* Windows-compatible RGB formats: */
- #define HX_RLE8 BI_RLE8
- #define HX_RLE4 BI_RLE4
- #define HX_BITFIELDS BI_BITFIELDS
- #define HX_I420 MKFOURCC('I','4','2','0') /* planar YCrCb */
- #define HX_YV12 MKFOURCC('Y','V','1','2') /* planar YVU420 */
- #define HX_YUY2 MKFOURCC('Y','U','Y','2') /* packed YUV422 */
- #define HX_UYVY MKFOURCC('U','Y','V','Y') /* packed YUV422 */
- #define HX_YVU9 MKFOURCC('Y','V','U','9') /* Intel YVU9 */
- #define HX_ARGB MKFOURCC('A','R','G','B') /* ARGB32 */
- #define HX_DVPF MKFOURCC('D','V','P','F') /* dvpf */
- /*
- * Non-standard FOURCC formats (these are just few aliases to what can be
- * represented by the standard formats, and they are left for backward
- * compatibility only).
- */
- #define HXCOLOR_RGB3_ID MKFOURCC('3','B','G','R') /* RGB-32 ?? */
- #define HXCOLOR_RGB24_ID MKFOURCC('B','G','R',' ') /* top-down RGB-24*/
- #define HXCOLOR_RGB565_ID MKFOURCC('6','B','G','R') /* RGB-16 565 */
- #define HXCOLOR_RGB555_ID MKFOURCC('5','B','G','R') /* RGB-16 555 */
- #define HXCOLOR_8BIT_ID MKFOURCC('T','I','B','8') /* RGB-8 w. pal-e */
- #define HXCOLOR_YUV420_ID MKFOURCC('2','V','U','Y') /* planar YCrCb */
- #define HXCOLOR_YUVA_ID MKFOURCC('Y','U','V','A') /* planar YCrCb */
- #define HXCOLOR_YUV411_ID MKFOURCC('1','V','U','Y') /* ??? */
- #define HXCOLOR_YUVRAW_ID MKFOURCC('R','V','U','Y') /* ??? */
- /*
- * Flags for IHXVideoSurface2
- */
- /* Flags for GetVideoMemory */
- #define HX_WAIT_FOREVER 0 /* Do not return until a buffer is available */
- #define HX_WAIT_NEVER 1 /* Return an error if no buffer is available */
- /* Flags for Present */
- #define HX_MODE_TIMED 0 /* Synchronize the frame to IHXRenderTimeLine */
- #define HX_MODE_IMMEDIATE 1 /* Display the frame ASAP */
- #define HX_MODE_REFRESH (1<<1) /* Refresh the current frame */
- /****************************************************************************
- *
- * Interface:
- *
- * IHXVideoSurface
- *
- * Purpose:
- *
- * Interface for IHXVideoSurface objects.
- *
- * IID_IHXVideoSurface:
- *
- * {00002200-0901-11d1-8B06-00A024406D59}
- *
- */
- DEFINE_GUID(IID_IHXVideoSurface, 0x00002200, 0x901, 0x11d1, 0x8b,
- 0x6, 0x0, 0xa0, 0x24, 0x40, 0x6d, 0x59);
- #undef INTERFACE
- #define INTERFACE IHXVideoSurface
- DECLARE_INTERFACE_(IHXVideoSurface, IUnknown)
- {
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj) PURE;
- STDMETHOD_(ULONG32,AddRef) (THIS) PURE;
- STDMETHOD_(ULONG32,Release) (THIS) PURE;
- /*
- * IHXVideoSurface methods usually called by renderers to
- * Draw on the surface
- */
- STDMETHOD(Blt) (THIS_
- UCHAR* /*IN*/ pImageBits,
- HXBitmapInfoHeader* /*IN*/ pBitmapInfo,
- REF(HXxRect) /*IN*/ rDestRect,
- REF(HXxRect) /*IN*/ rSrcRect) PURE;
- /************************************************************************
- * Method:
- * IHXVideoSurface::BeginOptimizedBlt
- * Purpose:
- * Called by renderer to commit to a bitmap format for all future
- * OptimizedBlt calls.
- */
- STDMETHOD(BeginOptimizedBlt)(THIS_
- HXBitmapInfoHeader* /*IN*/ pBitmapInfo) PURE;
- /************************************************************************
- * Method:
- * IHXVideoSurface::OptimizedBlt
- * Purpose:
- * Called by renderer to draw to the video surface, in the format
- * previously specified by calling BeginOptimizedBlt.
- */
- STDMETHOD(OptimizedBlt) (THIS_
- UCHAR* /*IN*/ pImageBits,
- REF(HXxRect) /*IN*/ rDestRect,
- REF(HXxRect) /*IN*/ rSrcRect) PURE;
- /************************************************************************
- * Method:
- * IHXVideoSurface::EndOptimizedBlt
- * Purpose:
- * Called by renderer allow the video surface to cleanup after all
- * OptimizedBlt calls have been made.
- */
- STDMETHOD(EndOptimizedBlt) (THIS) PURE;
- /************************************************************************
- * Method:
- * IHXVideoSurface::GetOptimizedFormat
- * Purpose:
- * Called by the client to find out what compression type the
- * renderer committed to when it called BeginOptimizedBlt.
- */
- STDMETHOD(GetOptimizedFormat)(THIS_
- REF(HX_COMPRESSION_TYPE) /*OUT*/ ulType) PURE;
- /************************************************************************
- * Method:
- * IHXVideoSurface::GetPreferredFormat
- * Purpose:
- * Called by renderer to find out what compression type the video
- * surface would prefer to be given in BeginOptimizedBlt.
- */
- STDMETHOD(GetPreferredFormat)(THIS_
- REF(HX_COMPRESSION_TYPE) /*OUT*/ ulType) PURE;
- };
- /****************************************************************************
- *
- * Interface:
- *
- * IHXVideoHook
- *
- * Purpose:
- *
- * Interface for IHXVideoHook objects.
- *
- * IID_IHXVideoHook:
- *
- * {00002202-0901-11d1-8B06-00A024406D59}
- *
- */
- DEFINE_GUID(IID_IHXVideoHook, 0x00002202, 0x901, 0x11d1, 0x8b,
- 0x6, 0x0, 0xa0, 0x24, 0x40, 0x6d, 0x59);
- #undef INTERFACE
- #define INTERFACE IHXVideoHook
- DECLARE_INTERFACE_(IHXVideoHook, IUnknown)
- {
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj) PURE;
- STDMETHOD_(ULONG32,AddRef) (THIS) PURE;
- STDMETHOD_(ULONG32,Release) (THIS) PURE;
- /***
- * IHXVideoHook::OnVideoFrame
- ***
- * This method will be called from the drawing thread, with the current
- * frame, right before the frame is blitted to the screen. All 3rd party
- * calculations that occur here are delaying the timely delivery of the
- * frame to the screen. They should be as optimized as possible. pInFrame
- * is the input frame buffer pOutFrame should be set to contain the output
- * data on return, and destRect is provided so that the 3rd party can make
- * sense of mouse events, but cannot be changed and does not have any
- * direct bearing on image size. srcRect is provided for inspection only
- * for compatibility with the possible future addition of unfixed size
- * input frames. The client is responcible for maintaining and freeing
- * the memory which they return in pOutFrame. Simply setting pOutFrame to
- * pInFrame is acceptable for in-place modifications as a result since it
- * will still only be freed the requisite one time.
- ***/
- STDMETHOD(OnVideoFrame) (THIS_
- UCHAR* /* In */ pInFrame,
- ULONG32 /* In */ ulTimeStamp,
- REF(HXxRect) /* In */ srcRect,
- REF(HXxRect) /* In */ destRect,
- REF(UCHAR*) /* Out */ pOutFrame) PURE;
- /***
- * IHXVideoHook::HandleHookEvent
- ***
- * This method provides a quick pass through by which events received by
- * the IHXVideoHookSink, such as mouse clicks, can be handed on to
- * registered IHXVideoHook objects. Hook objects can use or ignore this
- * information but setting the handled member of the passed HXxEvent is
- * not allowed.
- ***/
-
- STDMETHOD(HandleHookEvent) (THIS_
- HXxEvent* pEvent) PURE;
- /***
- * IHXVideoHook::GetProperties
- ***
- * This method provides a way for holders of an IHXVideoHook object to
- * query it for descriptive information. Suggested property bindings are:
- * "Description" - CString describing plugin functionality.
- * "Copyright" - CString copyright notice.
- * "MoreInfo" - CString URL for obtaining more info.
- * "Version" - ULONG32 version number.
- * "InputFormat" - IHXBuffer containing input HXBitmapInfoHeader
- * flattened as UCHAR array.
- * "OutputFormat" - IHXBuffer containing output HXBitmapInfoHeader
- * flattened as UCHAR array.
- * Others can obviously be included for specific hook-hook
- * communications, and more may also be required.
- ***/
-
- STDMETHOD(GetProperties) (THIS_
- REF(IHXValues*) /* Out */ properties) PURE;
- /***
- * IHXVideoHook::HookAddedNotification
- ***
- * This method is called by the IHXVideoHookSink for all of its
- * registered hooks whenever it registers another. This allows
- * registered hooks to redo their checking of the other hooks whenever
- * new ones enter the loop.
- ***/
- STDMETHOD(HookAddedNotification) (THIS_
- IHXVideoHook* pNewHook) PURE;
- };
- /****************************************************************************
- *
- * Interface:
- *
- * IHXVideoHookSink
- *
- * Purpose:
- *
- * Interface for IHXVideoHookSink objects.
- *
- * IID_IHXVideoHookSink:
- *
- * {00002201-0901-11d1-8B06-00A024406D59}
- *
- */
- DEFINE_GUID(IID_IHXVideoHookSink, 0x00002201, 0x901, 0x11d1, 0x8b,
- 0x6, 0x0, 0xa0, 0x24, 0x40, 0x6d, 0x59);
- #undef INTERFACE
- #define INTERFACE IHXVideoHookSink
- DECLARE_INTERFACE_(IHXVideoHookSink, IUnknown)
- {
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj) PURE;
- STDMETHOD_(ULONG32,AddRef) (THIS) PURE;
- STDMETHOD_(ULONG32,Release) (THIS) PURE;
- /***
- * IHXVideoHookSink::AddVideoHook
- ***
- * This method is called by an IHXVideoHook object which wishes to
- * connect to the receiving IHXVideoHookSink object to obtain video
- * frames immediately prior to blitting. pHook is the object requesting
- * registry, and pOptions is an IHXValues object containing optional
- * special flags affecting behavior. pFrameFormat should point to a
- * pre-allocated HXBitmapInfoHeader struct which on exit is filled in
- * with the bitmap format in which frame data will be supplied to
- * OnVideoFrame() and to which it will be expected to conform on exit of
- * OnVideoFrame(). If this format is inappropriate for input or output
- * formats, then after registration the IHXVideoHook object should use
- * the IHXVideoHookSink object's SetInputFormat() and/or
- * SetOutputFormat() methods to arrive at a mutually acceptable exchange
- * format, or to determine that none is available and take appropriate
- * action.
- ***
- * pOptions:
- * "ReceivesEvents" - 0:No, !0:Yes
- * "ReceivesHookAdded" - 0:No, !0:Yes
- * "ReceivesFrames" - 0:No, !0:Yes
- * "TakesAnySize" - 0:No, !0:Yes
- ***/
- STDMETHOD(AddVideoHook) (THIS_
- IHXVideoHook* /* In */ pHook,
- IHXValues* /* I/O */ pOptions,
- HXBitmapInfoHeader* /* Out */ pFrameFormat) PURE;
- /***
- * IHXVideoHookSink::ForceSurfaceUpdate
- ***
- * This method provides a mechanism by which event-driven IHXVideoHook
- * objects can request that they be given a new image if the mouse is
- * clicked (for example). The entire frame is "damaged" so that
- * everything will be redrawn.
- ***/
- STDMETHOD(ForceSurfaceUpdate) (THIS) PURE;
- /***
- * IHXVideoHookSink::SetInputFormat
- * IHXVideoHookSink::SetOutputFormat
- ***
- * These methods provide a way for the IHXVideoHookSink to negotiate
- * with its registered IHXVideoHook objects about what image formats
- * they require or return respectively. pHook is the hook object
- * which is requesting a change in format, pRequested points to an
- * HXBitmapInfoHeader describing the format which the hook wants (either
- * to receive or return).
- * This method returns HXR_FAIL and does not change formats, unless
- * pRequested matches an acceptable format exactly, that format is
- * registered for future frame transactions, and HXR_OK is returned.
- * Should be called immediately after registration.
- ***/
- STDMETHOD(SetInputFormat) (THIS_
- IHXVideoHook* pHook,
- HXBitmapInfoHeader* pRequested) PURE;
- STDMETHOD(SetOutputFormat) (THIS_
- IHXVideoHook* pHook,
- HXBitmapInfoHeader* pRequested) PURE;
- /***
- * IHXVideoHookSink::GetVideoHookCount
- ***
- * This method returns the number of IHXVideoHook objects registered
- * with this IHXVideoHookSink. This value is only useful in the short
- * term as order and count may change for IHXVideoHook objects without
- * notice. Do not use it to store access to a given hook.
- ***/
- STDMETHOD_(UINT16,GetVideoHookCount) (THIS) PURE;
- /***
- * IHXVideoHookSink::GetVideoHook
- ***
- * This method provides access to registered IHXVideoHook objects by
- * index with valid indecies ranging from 0 to n-1 inclusive, where n
- * is the value returned by GetVideoHookCount(), provided no sources
- * have been added or removed since it was last called.
- ***/
- STDMETHOD(GetVideoHook) (THIS_
- UINT16 nIndex,
- REF(IUnknown*) pUnknown) PURE;
- };
- // $Private:
- /****************************************************************************
- *
- * Interface:
- *
- * IHXRenderTimeLine
- *
- * Purpose:
- *
- * Provide IHXVideoSurface2 a time line for scheduling its video frames
- *
- * IID_IHXRenderTimeLine:
- *
- * {00002204-0901-11d1-8B06-00A024406D59}
- *
- */
- DEFINE_GUID(IID_IHXRenderTimeLine, 0x00002204, 0x901, 0x11d1, 0x8b,
- 0x6, 0x0, 0xa0, 0x24, 0x40, 0x6d, 0x59);
-
- #undef INTERFACE
- #define INTERFACE IHXRenderTimeLine
- DECLARE_INTERFACE_(IHXRenderTimeLine, IUnknown)
- {
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj) PURE;
-
- STDMETHOD_(ULONG32,AddRef) (THIS) PURE;
-
- STDMETHOD_(ULONG32,Release) (THIS) PURE;
-
-
- /************************************************************************
- * Method:
- * IHXRenderTimeLine::GetTimeLineValue
- * Purpose:
- * Get the current presentation time
- *
- * Notes:
- * returns HXR_TIMELINE_SUSPENDED when the time line is suspended
- */
- STDMETHOD (GetTimeLineValue) (THIS_ /*OUT*/ REF(UINT32) ulTime) PURE;
- };
- /****************************************************************************
- *
- * Interface:
- *
- * IHXVideoSurface2
- *
- * Purpose:
- *
- * Provides hardware video buffers to render plugins
- *
- * IID_IHXVideoSurface2:
- *
- * {00002203-0901-11d1-8B06-00A024406D59}
- *
- */
- DEFINE_GUID(IID_IHXVideoSurface2, 0x00002203, 0x901, 0x11d1, 0x8b,
- 0x6, 0x0, 0xa0, 0x24, 0x40, 0x6d, 0x59);
-
- #undef INTERFACE
- #define INTERFACE IHXVideoSurface2
- DECLARE_INTERFACE_(IHXVideoSurface2, IUnknown)
- {
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj) PURE;
-
- STDMETHOD_(ULONG32,AddRef) (THIS) PURE;
-
- STDMETHOD_(ULONG32,Release) (THIS) PURE;
-
-
- /************************************************************************
- * Method:
- * IHXVideoSurface2::SetProperties
- * Purpose:
- * Request ulNumBuffers hardware buffers of the format described
- * in bmi. ulNumBuffers will contain the number of buffers actually
- * allocated.
- * pClock is the renderer's clock used for scheduling the video
- * frames received in the Present call. A NULL clock causes Present
- * to ignore the timestamp and display synchronously.
- */
- STDMETHOD (SetProperties) (THIS_ /*IN/OUT*/ HXBitmapInfoHeader* bmi,
- /*IN/OUT*/ REF(UINT32) ulNumBuffers,
- /*IN*/ IHXRenderTimeLine* pClock) PURE;
- /************************************************************************
- * Method:
- * IHXVideoSurface2::GetVideoMem
- * Purpose:
- * Requests the next available hardware video buffer.
- * If the presentation contains alpha blending, the blended regions
- * of the will be requested via VideoMemStruct.pAlphaList. Fill
- * each AlphaStruct with the subrect of the video frame specified
- * by AlphaStruct.rcImageRect. IHXVideoSurface2 will then alpha
- * blend the video with the presentation.
- *
- * This call blocks until a video buffer is available. bmi
- * describes the buffer returned.
- *
- * Notes:
- * The buffer format can change with each call so bmi must be
- * checked everytime.
- */
- STDMETHOD (GetVideoMem) (THIS_ VideoMemStruct* /*IN/OUT*/ pVidMem,
- UINT32 ulFlags) PURE;
- /************************************************************************
- * Method:
- * IHXVideoSurface2::ReleaseVideoMem
- * Purpose:
- * Called on a buffer returned from GetVideoMem to discard the
- * buffer without displaying it.
- */
- STDMETHOD (ReleaseVideoMem) (THIS_ VideoMemStruct* pVidMem) PURE;
- /************************************************************************
- * Method:
- * IHXVideoSurface2::Present
- * Purpose:
- * Called by renderer to put a video image on the screen at absoulte
- * time lTime. prDestRect and prSrcRect are relative coordinates.
- * prSrcRect with all zeros defaults to the entire surface dimensions
- * and prDestRect with all zeros defaults to the entire client widnow.
- *
- * Notes:
- * This is an asynchronous method.
- */
- STDMETHOD (Present) (THIS_
- VideoMemStruct* pVidMem,
- INT32 lTime,
- UINT32 ulFlags,
- HXxRect *prDestRect,
- HXxRect *prSrcRect) PURE;
- /************************************************************************
- * Method:
- * IHXVideoSurface2::ColorConvert
- * Purpose:
- * Called by renderer to transform one video format to another.
- * It is optimized for writing to hardware memory.
- */
- STDMETHOD (ColorConvert) (THIS_
- INT32 fourCCIn,
- HXxSize *pSrcSize,
- HXxRect *prSrcRect,
- SourceInputStruct *pInput,
- INT32 fourCCOut,
- UCHAR *pDestBuffer,
- HXxSize *pDestSize,
- HXxRect *prDestRect,
- int nDestPitch) PURE;
-
- /************************************************************************
- * Method:
- * IHXVideoSurface2::Flush
- * Purpose:
- * Cancel any pending Present calls.
- */
- STDMETHOD_(void, Flush)(THIS) PURE;
- /************************************************************************
- * Method:
- * IHXVideoSurface2::PresentIfReady
- * Purpose:
- * Optional method called by renderer to check the status of the
- * next Present. If will display the next image if it is time. This
- * method assists the scheduler that is not getting its time slices
- * due to OS latency, non-cooperative multi-tasking, or any other
- * reason.
- */
- STDMETHOD (PresentIfReady) (THIS) PURE;
- };
- // $EndPrivate.
- // $Private:
- /****************************************************************************
- *
- * Interface:
- *
- * IHXSubRectVideoSurface
- *
- * Purpose:
- *
- * Interface for IHXSubRectVideoSurface objects.
- *
- * IID_IHXSubRectVideoSurface:
- *
- * {00002205-0901-11d1-8B06-00A024406D59}
- *
- */
- DEFINE_GUID(IID_IHXSubRectVideoSurface, 0x00002205, 0x901, 0x11d1, 0x8b,
- 0x6, 0x0, 0xa0, 0x24, 0x40, 0x6d, 0x59);
- #undef INTERFACE
- #define INTERFACE IHXSubRectVideoSurface
- DECLARE_INTERFACE_(IHXSubRectVideoSurface, IHXVideoSurface)
- {
- STDMETHOD(BltSubRects)( THIS_
- UCHAR* /*IN*/ pImageBits,
- HXBitmapInfoHeader* /*IN*/ pBitmapInfo,
- HXxBoxRegion* /*IN*/ pDestRects,
- HXxBoxRegion* /*IN*/ pSrcRects,
- float fScaleFactorX,
- float fScaleFactorY
- ) PURE;
- };
- // $EndPrivate.
- #endif /* _HXVSURF_H_ */