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176 lines
5.2 KiB
C
176 lines
5.2 KiB
C
/**********************************************************************
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*
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* Copyright(c) Imagination Technologies Ltd.
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*
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* The contents of this file are subject to the MIT license as set out below.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
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* OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* This License is also included in this distribution in the file called
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* "COPYING".
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*
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******************************************************************************/
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#if !defined(__DRI2_WS_H__)
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#define __DRI2_WS_H__
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#define DRI2WS_DISPFLAG_DEFAULT_DISPLAY 0x00000001
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/*
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// Constants (macros) related to back-buffering.
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*/
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#define XWS_FLIP_BUFFERS 3
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#define DRI2_FLIP_BUFFERS_NUM XWS_FLIP_BUFFERS
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#define XWS_FLIP_BUFFER_INDEX (XWS_MAX_FLIP_BUFFERS - 1)
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#define XWS_BLIT_BUFFERS 2
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#define DRI2_BLIT_BUFFERS_NUM XWS_BLIT_BUFFERS
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#define XWS_BLIT_BUFFER_INDEX (XWS_MAX_BLIT_BUFFERS - 1)
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#if 0
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#define MIN(a,b) ((a)<(b)?(a):(b))
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#define MAX(a,b) ((a)>(b)?(a):(b))
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#endif
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#define XWS_MAX_BUFFERS MAX(XWS_FLIP_BUFFERS, XWS_BLIT_BUFFERS)
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#define DRI2_MAX_BUFFERS_NUM XWS_MAX_BUFFERS
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#define __DRI_BUFFER_EMPTY 103
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/** Used for ugly ugly ugly swap interval passing to dri2 driver and receiving current frame index */
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#define __DRI_BUFFER_PVR_CTRL 0x80 /* 100000XX <- last 2 bits for swap interval value */
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#define __DRI_BUFFER_PVR_CTRL_RET 0x90 /* 11000000 */
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#define DRI2_BACK_BUFFER_EXPORT_TYPE_BUFFERS 1
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#define DRI2_BACK_BUFFER_EXPORT_TYPE_SWAPCHAIN 2
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#define UNREFERENCED_PARAMETER(x) (x) = (x)
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/*
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* Structure used to pass information about back buffers between client application and
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* X.Org. Watch out for equivalent structure in pvr_video lib
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*/
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typedef struct _PVRDRI2BackBuffersExport_
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{
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/* Type of export. _BUFFERS mean set of handles, _SWAPCHAIN mean Swap chain ID */
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unsigned int ui32Type;
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PVR2D_HANDLE hBuffers[DRI2_MAX_BUFFERS_NUM];
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unsigned int ui32BuffersCount;
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unsigned int ui32SwapChainID;
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} PVRDRI2BackBuffersExport;
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/*
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// Private window system display information
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*/
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typedef struct DRI2WS_Display_TAG
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{
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unsigned int ui32RefCount;
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Display *display;
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int screen;
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unsigned int ui32Flags;
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unsigned int ui32Width;
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unsigned int ui32Height;
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unsigned int ui32StrideInBytes;
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unsigned int ui32BytesPerPixel;
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WSEGLPixelFormat ePixelFormat;
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PVR2DFORMAT ePVR2DPixelFormat;
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PVR2DCONTEXTHANDLE hContext;
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PVR2DMEMINFO *psMemInfo;
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int iDRMfd;
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} DRI2WSDisplay;
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typedef enum DRI2WS_DrawableType_TAG
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{
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DRI2_DRAWABLE_UNKNOWN = 0,
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DRI2_DRAWABLE_WINDOW = 1,
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DRI2_DRAWABLE_PIXMAP = 2,
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} DRI2WS_DrawableType;
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/*
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// Private window system drawable information
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*/
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typedef struct DRI2WS_Drawable_TAG
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{
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DRI2WS_DrawableType eDrawableType;
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Window nativeWin;
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/** Index of current render-to back buffer (received from Xserver) */
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unsigned int ui32BackBufferCurrent;
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/** Number of buffers */
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unsigned int ui32BackBufferNum;
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/** Swap interval (works only in fliping/fullscreen case, values 0-3) */
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unsigned int ui32SwapInterval;
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/** PVR2D Handles received from Xserver (back buffers export structure) */
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PVR2D_HANDLE hPVR2DBackBufferExport;
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/** Stamp of current back buffer */
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unsigned char ucBackBufferExportStamp;
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/** Array of PVR2D Handles received from Xserver (our back buffers) */
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PVR2D_HANDLE hPVR2DBackBuffer[XWS_MAX_BUFFERS];
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/** Array of PVR2D mapped back buffers */
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PVR2DMEMINFO *psMemBackBuffer[XWS_MAX_BUFFERS];
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/** Stamp of current back buffer */
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unsigned char ucFrontBufferStamp;
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/** Array of PVR2D Handles received from Xserver (our back buffers) */
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PVR2D_HANDLE hPVR2DFrontBuffer;
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/** Array of PVR2D mapped back buffers */
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PVR2DMEMINFO *psMemFrontBuffer;
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/** ID of flip/swap chain received from X.Org */
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unsigned int ui32FlipChainID;
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/** PVR2D Handle of flip chain used to get buffers to draw to */
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PVR2DFLIPCHAINHANDLE hFlipChain;
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int iWidth;
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int iHeight;
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WSEGLPixelFormat ePixelFormat;
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unsigned int ui32BytesPerPixel;
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unsigned int ui32StrideInPixels;
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unsigned int ui32StrideInBytes;
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PVR2DFORMAT ePVR2DPixelFormat;
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DRI2WSDisplay *psXWSDisplay;
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} DRI2WSDrawable;
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#endif /* __DRI2_WS_H__ */
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