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