DC_ERROR Init(void)
{
DC_NOHW_DEVINFO *psDevInfo;
DC_ERROR eError;
unsigned long ulBBuf;
unsigned long ulNBBuf;
psDevInfo = GetAnchorPtr();
if (psDevInfo == 0)
{
PFN_CMD_PROC pfnCmdProcList[DC_NOHW_COMMAND_COUNT];
IMG_UINT32 aui32SyncCountList[DC_NOHW_COMMAND_COUNT][2];
psDevInfo = (DC_NOHW_DEVINFO *)AllocKernelMem(sizeof(*psDevInfo));
if(!psDevInfo)
{
eError = DC_ERROR_OUT_OF_MEMORY;
goto ExitError;
}
memset(psDevInfo, 0, sizeof(*psDevInfo));
SetAnchorPtr((void*)psDevInfo);
psDevInfo->ulRefCount = 0UL;
if(OpenPVRServices(&psDevInfo->hPVRServices) != DC_OK)
{
eError = DC_ERROR_INIT_FAILURE;
goto ExitFreeDevInfo;
}
if(GetLibFuncAddr (psDevInfo->hPVRServices, "PVRGetDisplayClassJTable", &pfnGetPVRJTable) != DC_OK)
{
eError = DC_ERROR_INIT_FAILURE;
goto ExitCloseServices;
}
if((*pfnGetPVRJTable)(&psDevInfo->sPVRJTable) == IMG_FALSE)
{
eError = DC_ERROR_INIT_FAILURE;
goto ExitCloseServices;
}
psDevInfo->psSwapChain = 0;
psDevInfo->sDisplayInfo.ui32MinSwapInterval = 0UL;
psDevInfo->sDisplayInfo.ui32MaxSwapInterval = 1UL;
psDevInfo->sDisplayInfo.ui32MaxSwapChains = 1UL;
psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers = DC_NOHW_MAX_BACKBUFFERS;
strncpy(psDevInfo->sDisplayInfo.szDisplayName, DISPLAY_DEVICE_NAME, MAX_DISPLAY_NAME_SIZE);
psDevInfo->ulNumFormats = 1UL;
psDevInfo->ulNumDims = 1UL;
#if defined(DC_NOHW_GET_BUFFER_DIMENSIONS)
if (!GetBufferDimensions(&psDevInfo->asDisplayDimList[0].ui32Width,
&psDevInfo->asDisplayDimList[0].ui32Height,
&psDevInfo->asDisplayFormatList[0].pixelformat,
&psDevInfo->asDisplayDimList[0].ui32ByteStride))
{
eError = DC_ERROR_INIT_FAILURE;
goto ExitCloseServices;
}
#else
#if defined (ENABLE_DISPLAY_MODE_TRACKING)
psDevInfo->asDisplayFormatList[0].pixelformat = DC_NOHW_BUFFER_PIXEL_FORMAT;
psDevInfo->asDisplayDimList[0].ui32Width = 0;
psDevInfo->asDisplayDimList[0].ui32Height = 0;
psDevInfo->asDisplayDimList[0].ui32ByteStride = 0;
#else
psDevInfo->asDisplayFormatList[0].pixelformat = DC_NOHW_BUFFER_PIXEL_FORMAT;
psDevInfo->asDisplayDimList[0].ui32Width = DC_NOHW_BUFFER_WIDTH;
psDevInfo->asDisplayDimList[0].ui32Height = DC_NOHW_BUFFER_HEIGHT;
psDevInfo->asDisplayDimList[0].ui32ByteStride = DC_NOHW_BUFFER_BYTE_STRIDE;
#endif
#endif
psDevInfo->sSysFormat = psDevInfo->asDisplayFormatList[0];
psDevInfo->sSysDims.ui32Width = psDevInfo->asDisplayDimList[0].ui32Width;
psDevInfo->sSysDims.ui32Height = psDevInfo->asDisplayDimList[0].ui32Height;
psDevInfo->sSysDims.ui32ByteStride = psDevInfo->asDisplayDimList[0].ui32ByteStride;
psDevInfo->ui32BufferSize = psDevInfo->sSysDims.ui32Height * psDevInfo->sSysDims.ui32ByteStride;
for(ulBBuf=0; ulBBuf<DC_NOHW_MAX_BACKBUFFERS; ulBBuf++)
{
#if defined(USE_BASE_VIDEO_FRAMEBUFFER) || defined (ENABLE_DISPLAY_MODE_TRACKING)
psDevInfo->asBackBuffers[ulBBuf].sSysAddr.uiAddr = IMG_NULL;
psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr = IMG_NULL;
#else
#if defined(DC_NOHW_DISCONTIG_BUFFERS)
if (AllocDiscontigMemory(psDevInfo->ui32BufferSize,
&psDevInfo->asBackBuffers[ulBBuf].hMemChunk,
&psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr,
&psDevInfo->asBackBuffers[ulBBuf].psSysAddr) != DC_OK)
{
eError = DC_ERROR_INIT_FAILURE;
goto ExitFreeMem;
}
#else
IMG_CPU_PHYADDR sBufferCPUPAddr;
if (AllocContigMemory(psDevInfo->ui32BufferSize,
&psDevInfo->asBackBuffers[ulBBuf].hMemChunk,
&psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr,
&sBufferCPUPAddr) != DC_OK)
{
eError = DC_ERROR_INIT_FAILURE;
goto ExitFreeMem;
}
psDevInfo->asBackBuffers[ulBBuf].sSysAddr = CpuPAddrToSysPAddr(sBufferCPUPAddr);
#endif
#endif
psDevInfo->asBackBuffers[ulBBuf].sDevVAddr.uiAddr = 0UL;
psDevInfo->asBackBuffers[ulBBuf].hSwapChain = 0;
psDevInfo->asBackBuffers[ulBBuf].psSyncData = 0;
psDevInfo->asBackBuffers[ulBBuf].psNext = 0;
}
psDevInfo->sDCJTable.ui32TableSize = sizeof(PVRSRV_DC_SRV2DISP_KMJTABLE);
psDevInfo->sDCJTable.pfnOpenDCDevice = OpenDCDevice;
psDevInfo->sDCJTable.pfnCloseDCDevice = CloseDCDevice;
psDevInfo->sDCJTable.pfnEnumDCFormats = EnumDCFormats;
psDevInfo->sDCJTable.pfnEnumDCDims = EnumDCDims;
psDevInfo->sDCJTable.pfnGetDCSystemBuffer = GetDCSystemBuffer;
psDevInfo->sDCJTable.pfnGetDCInfo = GetDCInfo;
psDevInfo->sDCJTable.pfnGetBufferAddr = GetDCBufferAddr;
psDevInfo->sDCJTable.pfnCreateDCSwapChain = CreateDCSwapChain;
psDevInfo->sDCJTable.pfnDestroyDCSwapChain = DestroyDCSwapChain;
psDevInfo->sDCJTable.pfnSetDCDstRect = SetDCDstRect;
psDevInfo->sDCJTable.pfnSetDCSrcRect = SetDCSrcRect;
psDevInfo->sDCJTable.pfnSetDCDstColourKey = SetDCDstColourKey;
psDevInfo->sDCJTable.pfnSetDCSrcColourKey = SetDCSrcColourKey;
psDevInfo->sDCJTable.pfnGetDCBuffers = GetDCBuffers;
psDevInfo->sDCJTable.pfnSwapToDCBuffer = SwapToDCBuffer;
psDevInfo->sDCJTable.pfnSwapToDCSystem = SwapToDCSystem;
psDevInfo->sDCJTable.pfnSetDCState = IMG_NULL;
if(psDevInfo->sPVRJTable.pfnPVRSRVRegisterDCDevice (&psDevInfo->sDCJTable,
&psDevInfo->uiDeviceID ) != PVRSRV_OK)
{
eError = DC_ERROR_DEVICE_REGISTER_FAILED;
goto ExitFreeMem;
}
pfnCmdProcList[DC_FLIP_COMMAND] = ProcessFlip;
aui32SyncCountList[DC_FLIP_COMMAND][0] = 0UL;
aui32SyncCountList[DC_FLIP_COMMAND][1] = 2UL;
if (psDevInfo->sPVRJTable.pfnPVRSRVRegisterCmdProcList(psDevInfo->uiDeviceID,
&pfnCmdProcList[0],
aui32SyncCountList,
DC_NOHW_COMMAND_COUNT) != PVRSRV_OK)
{
eError = DC_ERROR_CANT_REGISTER_CALLBACK;
goto ExitRemoveDevice;
}
}
psDevInfo->ulRefCount++;
return (DC_OK);
ExitRemoveDevice:
(IMG_VOID) psDevInfo->sPVRJTable.pfnPVRSRVRemoveDCDevice(psDevInfo->uiDeviceID);
ExitFreeMem:
ulNBBuf = ulBBuf;
for(ulBBuf=0; ulBBuf<ulNBBuf; ulBBuf++)
{
#if defined(DC_NOHW_DISCONTIG_BUFFERS)
FreeDiscontigMemory(psDevInfo->ui32BufferSize,
psDevInfo->asBackBuffers[ulBBuf].hMemChunk,
psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr,
psDevInfo->asBackBuffers[ulBBuf].psSysAddr);
#else
#if !defined(USE_BASE_VIDEO_FRAMEBUFFER)
FreeContigMemory(psDevInfo->ui32BufferSize,
psDevInfo->asBackBuffers[ulBBuf].hMemChunk,
psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr,
SysPAddrToCpuPAddr(psDevInfo->asBackBuffers[ulBBuf].sSysAddr));
#endif
#endif
}
ExitCloseServices:
(void)ClosePVRServices(psDevInfo->hPVRServices);
ExitFreeDevInfo:
FreeKernelMem(psDevInfo);
SetAnchorPtr(0);
ExitError:
return eError;
}
DC_ERROR Init(void)
{
DC_NOHW_DEVINFO *psDevInfo;
DC_ERROR eError;
unsigned long ulBBuf;
unsigned long ulNBBuf;
/*
- connect to services
- register with services
- allocate and setup private data structure
*/
/*
in kernel driver, data structures must be anchored to something for subsequent retrieval
this may be a single global pointer or TLS or something else - up to you
call API to retrieve this ptr
*/
/*
get the anchor pointer
*/
psDevInfo = GetAnchorPtr();
if (psDevInfo == 0)
{
PFN_CMD_PROC pfnCmdProcList[DC_NOHW_COMMAND_COUNT];
IMG_UINT32 aui32SyncCountList[DC_NOHW_COMMAND_COUNT][2];
/* allocate device info. structure */
psDevInfo = (DC_NOHW_DEVINFO *)AllocKernelMem(sizeof(*psDevInfo));
if(!psDevInfo)
{
eError = DC_ERROR_OUT_OF_MEMORY;/* failure */
goto ExitError;
}
/* initialise allocation */
memset(psDevInfo, 0, sizeof(*psDevInfo));
/* set the top-level anchor */
SetAnchorPtr((void*)psDevInfo);
/* set ref count */
psDevInfo->ulRefCount = 0UL;
if(OpenPVRServices(&psDevInfo->hPVRServices) != DC_OK)
{
eError = DC_ERROR_INIT_FAILURE;
goto ExitFreeDevInfo;
}
if(GetLibFuncAddr (psDevInfo->hPVRServices, "PVRGetDisplayClassJTable", &pfnGetPVRJTable) != DC_OK)
{
eError = DC_ERROR_INIT_FAILURE;
goto ExitCloseServices;
}
/* got the kernel services function table */
if((*pfnGetPVRJTable)(&psDevInfo->sPVRJTable) == IMG_FALSE)
{
eError = DC_ERROR_INIT_FAILURE;
goto ExitCloseServices;
}
/*
Setup the devinfo
*/
psDevInfo->psSwapChain = 0;
psDevInfo->sDisplayInfo.ui32MinSwapInterval = 0UL;
psDevInfo->sDisplayInfo.ui32MaxSwapInterval = 1UL;
psDevInfo->sDisplayInfo.ui32MaxSwapChains = 1UL;
psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers = DC_NOHW_MAX_BACKBUFFERS;
strncpy(psDevInfo->sDisplayInfo.szDisplayName, DISPLAY_DEVICE_NAME, MAX_DISPLAY_NAME_SIZE);
psDevInfo->ulNumFormats = 1UL;
psDevInfo->ulNumDims = 1UL;
#if defined(DC_NOHW_GET_BUFFER_DIMENSIONS)
if (!GetBufferDimensions(&psDevInfo->asDisplayDimList[0].ui32Width,
&psDevInfo->asDisplayDimList[0].ui32Height,
&psDevInfo->asDisplayFormatList[0].pixelformat,
&psDevInfo->asDisplayDimList[0].ui32ByteStride))
{
eError = DC_ERROR_INIT_FAILURE;
goto ExitCloseServices;
}
#else /* defined(DC_NOHW_GET_BUFFER_DIMENSIONS) */
#if defined (ENABLE_DISPLAY_MODE_TRACKING)
// Set sizes to zero to force re-alloc on display mode change.
psDevInfo->asDisplayFormatList[0].pixelformat = DC_NOHW_BUFFER_PIXEL_FORMAT;
psDevInfo->asDisplayDimList[0].ui32Width = 0;
psDevInfo->asDisplayDimList[0].ui32Height = 0;
psDevInfo->asDisplayDimList[0].ui32ByteStride = 0;
#else
psDevInfo->asDisplayFormatList[0].pixelformat = DC_NOHW_BUFFER_PIXEL_FORMAT;
psDevInfo->asDisplayDimList[0].ui32Width = DC_NOHW_BUFFER_WIDTH;
psDevInfo->asDisplayDimList[0].ui32Height = DC_NOHW_BUFFER_HEIGHT;
psDevInfo->asDisplayDimList[0].ui32ByteStride = DC_NOHW_BUFFER_BYTE_STRIDE;
#endif
#endif /* defined(DC_NOHW_GET_BUFFER_DIMENSIONS) */
psDevInfo->sSysFormat = psDevInfo->asDisplayFormatList[0];
psDevInfo->sSysDims.ui32Width = psDevInfo->asDisplayDimList[0].ui32Width;
psDevInfo->sSysDims.ui32Height = psDevInfo->asDisplayDimList[0].ui32Height;
psDevInfo->sSysDims.ui32ByteStride = psDevInfo->asDisplayDimList[0].ui32ByteStride;
psDevInfo->ui32BufferSize = psDevInfo->sSysDims.ui32Height * psDevInfo->sSysDims.ui32ByteStride;
/* setup swapchain details */
for(ulBBuf=0; ulBBuf<DC_NOHW_MAX_BACKBUFFERS; ulBBuf++)
{
#if defined(USE_BASE_VIDEO_FRAMEBUFFER) || defined (ENABLE_DISPLAY_MODE_TRACKING)
psDevInfo->asBackBuffers[ulBBuf].sSysAddr.uiAddr = IMG_NULL;
psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr = IMG_NULL;
#else
#if defined(DC_NOHW_DISCONTIG_BUFFERS)
if (AllocDiscontigMemory(psDevInfo->ui32BufferSize,
&psDevInfo->asBackBuffers[ulBBuf].hMemChunk,
&psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr,
&psDevInfo->asBackBuffers[ulBBuf].psSysAddr) != DC_OK)
{
eError = DC_ERROR_INIT_FAILURE;
goto ExitFreeMem;
}
#else
IMG_CPU_PHYADDR sBufferCPUPAddr;
if (AllocContigMemory(psDevInfo->ui32BufferSize,
&psDevInfo->asBackBuffers[ulBBuf].hMemChunk,
&psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr,
&sBufferCPUPAddr) != DC_OK)
{
eError = DC_ERROR_INIT_FAILURE;
goto ExitFreeMem;
}
psDevInfo->asBackBuffers[ulBBuf].sSysAddr = CpuPAddrToSysPAddr(sBufferCPUPAddr);
#endif
#endif /* #if defined(USE_BASE_VIDEO_FRAMEBUFFER) */
/* sDevVAddr not meaningful for nohw */
psDevInfo->asBackBuffers[ulBBuf].sDevVAddr.uiAddr = 0UL;
psDevInfo->asBackBuffers[ulBBuf].hSwapChain = 0;
psDevInfo->asBackBuffers[ulBBuf].psSyncData = 0;
psDevInfo->asBackBuffers[ulBBuf].psNext = 0;
}
/*
setup the DC Jtable so SRVKM can call into this driver
*/
psDevInfo->sDCJTable.ui32TableSize = sizeof(PVRSRV_DC_SRV2DISP_KMJTABLE);
psDevInfo->sDCJTable.pfnOpenDCDevice = OpenDCDevice;
psDevInfo->sDCJTable.pfnCloseDCDevice = CloseDCDevice;
psDevInfo->sDCJTable.pfnEnumDCFormats = EnumDCFormats;
psDevInfo->sDCJTable.pfnEnumDCDims = EnumDCDims;
psDevInfo->sDCJTable.pfnGetDCSystemBuffer = GetDCSystemBuffer;
psDevInfo->sDCJTable.pfnGetDCInfo = GetDCInfo;
psDevInfo->sDCJTable.pfnGetBufferAddr = GetDCBufferAddr;
psDevInfo->sDCJTable.pfnCreateDCSwapChain = CreateDCSwapChain;
psDevInfo->sDCJTable.pfnDestroyDCSwapChain = DestroyDCSwapChain;
psDevInfo->sDCJTable.pfnSetDCDstRect = SetDCDstRect;
psDevInfo->sDCJTable.pfnSetDCSrcRect = SetDCSrcRect;
psDevInfo->sDCJTable.pfnSetDCDstColourKey = SetDCDstColourKey;
psDevInfo->sDCJTable.pfnSetDCSrcColourKey = SetDCSrcColourKey;
psDevInfo->sDCJTable.pfnGetDCBuffers = GetDCBuffers;
psDevInfo->sDCJTable.pfnSwapToDCBuffer = SwapToDCBuffer;
psDevInfo->sDCJTable.pfnSetDCState = IMG_NULL;
/* register device with services and retrieve device index */
if(psDevInfo->sPVRJTable.pfnPVRSRVRegisterDCDevice (&psDevInfo->sDCJTable,
&psDevInfo->uiDeviceID ) != PVRSRV_OK)
{
eError = DC_ERROR_DEVICE_REGISTER_FAILED;
goto ExitFreeMem;
}
/*
setup private command processing function table
*/
pfnCmdProcList[DC_FLIP_COMMAND] = ProcessFlip;
/*
and associated sync count(s)
*/
aui32SyncCountList[DC_FLIP_COMMAND][0] = 0UL;/* no writes */
aui32SyncCountList[DC_FLIP_COMMAND][1] = 2UL;/* 2 reads: To / From */
/*
register private command processing functions with
the Command Queue Manager and setup the general
command complete function in the devinfo
*/
if (psDevInfo->sPVRJTable.pfnPVRSRVRegisterCmdProcList(psDevInfo->uiDeviceID,
&pfnCmdProcList[0],
aui32SyncCountList,
DC_NOHW_COMMAND_COUNT) != PVRSRV_OK)
{
eError = DC_ERROR_CANT_REGISTER_CALLBACK;
goto ExitRemoveDevice;
}
}
/* increment the ref count */
psDevInfo->ulRefCount++;
/* return success */
return (DC_OK);
ExitRemoveDevice:
(IMG_VOID) psDevInfo->sPVRJTable.pfnPVRSRVRemoveDCDevice(psDevInfo->uiDeviceID);
ExitFreeMem:
ulNBBuf = ulBBuf;
for(ulBBuf=0; ulBBuf<ulNBBuf; ulBBuf++)
{
#if defined(DC_NOHW_DISCONTIG_BUFFERS)
FreeDiscontigMemory(psDevInfo->ui32BufferSize,
psDevInfo->asBackBuffers[ulBBuf].hMemChunk,
psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr,
psDevInfo->asBackBuffers[ulBBuf].psSysAddr);
#else
#if !defined(USE_BASE_VIDEO_FRAMEBUFFER)
FreeContigMemory(psDevInfo->ui32BufferSize,
psDevInfo->asBackBuffers[ulBBuf].hMemChunk,
psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr,
SysPAddrToCpuPAddr(psDevInfo->asBackBuffers[ulBBuf].sSysAddr));
#endif /* #if defined(USE_BASE_VIDEO_FRAMEBUFFER) */
#endif /* #if defined(DC_NOHW_DISCONTIG_BUFFERS) */
}
ExitCloseServices:
(void)ClosePVRServices(psDevInfo->hPVRServices);
ExitFreeDevInfo:
FreeKernelMem(psDevInfo);
SetAnchorPtr(0);
ExitError:
return eError;
}
static PVRSRV_ERROR CreateDCSwapChain(IMG_HANDLE hDevice,
IMG_UINT32 ui32Flags,
DISPLAY_SURF_ATTRIBUTES *psDstSurfAttrib,
DISPLAY_SURF_ATTRIBUTES *psSrcSurfAttrib,
IMG_UINT32 ui32BufferCount,
PVRSRV_SYNC_DATA **ppsSyncData,
IMG_UINT32 ui32OEMFlags,
IMG_HANDLE *phSwapChain,
IMG_UINT32 *pui32SwapChainID)
{
DC_NOHW_DEVINFO *psDevInfo;
DC_NOHW_SWAPCHAIN *psSwapChain;
DC_NOHW_BUFFER *psBuffer;
IMG_UINT32 i;
UNREFERENCED_PARAMETER(ui32OEMFlags);
UNREFERENCED_PARAMETER(pui32SwapChainID);
if(!hDevice
|| !psDstSurfAttrib
|| !psSrcSurfAttrib
|| !ppsSyncData
|| !phSwapChain)
{
return (PVRSRV_ERROR_INVALID_PARAMS);
}
psDevInfo = (DC_NOHW_DEVINFO*)hDevice;
if(psDevInfo->psSwapChain)
{
return (PVRSRV_ERROR_FLIP_CHAIN_EXISTS);
}
if(ui32BufferCount > DC_NOHW_MAX_BACKBUFFERS)
{
return (PVRSRV_ERROR_TOOMANYBUFFERS);
}
if(psDstSurfAttrib->pixelformat != psDevInfo->sSysFormat.pixelformat
|| psDstSurfAttrib->sDims.ui32ByteStride != psDevInfo->sSysDims.ui32ByteStride
|| psDstSurfAttrib->sDims.ui32Width != psDevInfo->sSysDims.ui32Width
|| psDstSurfAttrib->sDims.ui32Height != psDevInfo->sSysDims.ui32Height)
{
return (PVRSRV_ERROR_INVALID_PARAMS);
}
if(psDstSurfAttrib->pixelformat != psSrcSurfAttrib->pixelformat
|| psDstSurfAttrib->sDims.ui32ByteStride != psSrcSurfAttrib->sDims.ui32ByteStride
|| psDstSurfAttrib->sDims.ui32Width != psSrcSurfAttrib->sDims.ui32Width
|| psDstSurfAttrib->sDims.ui32Height != psSrcSurfAttrib->sDims.ui32Height)
{
return (PVRSRV_ERROR_INVALID_PARAMS);
}
UNREFERENCED_PARAMETER(ui32Flags);
psSwapChain = (DC_NOHW_SWAPCHAIN*)AllocKernelMem(sizeof(DC_NOHW_SWAPCHAIN));
if(!psSwapChain)
{
return (PVRSRV_ERROR_OUT_OF_MEMORY);
}
psBuffer = (DC_NOHW_BUFFER*)AllocKernelMem(sizeof(DC_NOHW_BUFFER) * ui32BufferCount);
if(!psBuffer)
{
FreeKernelMem(psSwapChain);
return (PVRSRV_ERROR_OUT_OF_MEMORY);
}
memset(psSwapChain, 0, sizeof(DC_NOHW_SWAPCHAIN));
memset(psBuffer, 0, sizeof(DC_NOHW_BUFFER) * ui32BufferCount);
psSwapChain->ulBufferCount = (unsigned long)ui32BufferCount;
psSwapChain->psBuffer = psBuffer;
for(i=0; i<ui32BufferCount-1; i++)
{
psBuffer[i].psNext = &psBuffer[i+1];
}
psBuffer[i].psNext = &psBuffer[0];
for(i=0; i<ui32BufferCount; i++)
{
psBuffer[i].psSyncData = ppsSyncData[i];
#if defined(DC_NOHW_DISCONTIG_BUFFERS)
psBuffer[i].psSysAddr = psDevInfo->asBackBuffers[i].psSysAddr;
#else
psBuffer[i].sSysAddr = psDevInfo->asBackBuffers[i].sSysAddr;
#endif
psBuffer[i].sDevVAddr = psDevInfo->asBackBuffers[i].sDevVAddr;
psBuffer[i].sCPUVAddr = psDevInfo->asBackBuffers[i].sCPUVAddr;
psBuffer[i].hSwapChain = (DC_HANDLE)psSwapChain;
}
psDevInfo->psSwapChain = psSwapChain;
*phSwapChain = (IMG_HANDLE)psSwapChain;
return (PVRSRV_OK);
}
static PVRSRV_ERROR CreateDCSwapChain(IMG_HANDLE hDevice,
IMG_UINT32 ui32Flags,
DISPLAY_SURF_ATTRIBUTES *psDstSurfAttrib,
DISPLAY_SURF_ATTRIBUTES *psSrcSurfAttrib,
IMG_UINT32 ui32BufferCount,
PVRSRV_SYNC_DATA **ppsSyncData,
IMG_UINT32 ui32OEMFlags,
IMG_HANDLE *phSwapChain,
IMG_UINT32 *pui32SwapChainID)
{
DC_NOHW_DEVINFO *psDevInfo;
DC_NOHW_SWAPCHAIN *psSwapChain;
DC_NOHW_BUFFER *psBuffer;
IMG_UINT32 i;
UNREFERENCED_PARAMETER(ui32OEMFlags);
UNREFERENCED_PARAMETER(pui32SwapChainID);
/* check parameters */
if(!hDevice
|| !psDstSurfAttrib
|| !psSrcSurfAttrib
|| !ppsSyncData
|| !phSwapChain)
{
return (PVRSRV_ERROR_INVALID_PARAMS);
}
psDevInfo = (DC_NOHW_DEVINFO*)hDevice;
/* the dc_nohw only supports a single swapchain */
if(psDevInfo->psSwapChain)
{
return (PVRSRV_ERROR_FLIP_CHAIN_EXISTS);
}
/* check the buffer count */
if(ui32BufferCount > DC_NOHW_MAX_BACKBUFFERS)
{
return (PVRSRV_ERROR_TOOMANYBUFFERS);
}
/*
verify the DST/SRC attributes
- SRC/DST must match the current display mode config
*/
if(psDstSurfAttrib->pixelformat != psDevInfo->sSysFormat.pixelformat
|| psDstSurfAttrib->sDims.ui32ByteStride != psDevInfo->sSysDims.ui32ByteStride
|| psDstSurfAttrib->sDims.ui32Width != psDevInfo->sSysDims.ui32Width
|| psDstSurfAttrib->sDims.ui32Height != psDevInfo->sSysDims.ui32Height)
{
/* DST doesn't match the current mode */
return (PVRSRV_ERROR_INVALID_PARAMS);
}
if(psDstSurfAttrib->pixelformat != psSrcSurfAttrib->pixelformat
|| psDstSurfAttrib->sDims.ui32ByteStride != psSrcSurfAttrib->sDims.ui32ByteStride
|| psDstSurfAttrib->sDims.ui32Width != psSrcSurfAttrib->sDims.ui32Width
|| psDstSurfAttrib->sDims.ui32Height != psSrcSurfAttrib->sDims.ui32Height)
{
/* DST doesn't match the SRC */
return (PVRSRV_ERROR_INVALID_PARAMS);
}
/* INTEGRATION_POINT: check the flags */
UNREFERENCED_PARAMETER(ui32Flags);
/* create a swapchain structure */
psSwapChain = (DC_NOHW_SWAPCHAIN*)AllocKernelMem(sizeof(DC_NOHW_SWAPCHAIN));
if(!psSwapChain)
{
return (PVRSRV_ERROR_OUT_OF_MEMORY);
}
psBuffer = (DC_NOHW_BUFFER*)AllocKernelMem(sizeof(DC_NOHW_BUFFER) * ui32BufferCount);
if(!psBuffer)
{
FreeKernelMem(psSwapChain);
return (PVRSRV_ERROR_OUT_OF_MEMORY);
}
/* initialise allocations */
memset(psSwapChain, 0, sizeof(DC_NOHW_SWAPCHAIN));
memset(psBuffer, 0, sizeof(DC_NOHW_BUFFER) * ui32BufferCount);
psSwapChain->ulBufferCount = (unsigned long)ui32BufferCount;
psSwapChain->psBuffer = psBuffer;
/* link the buffers */
for(i=0; i<ui32BufferCount-1; i++)
{
psBuffer[i].psNext = &psBuffer[i+1];
}
/* and link last to first */
psBuffer[i].psNext = &psBuffer[0];
/* populate the buffers */
for(i=0; i<ui32BufferCount; i++)
{
psBuffer[i].psSyncData = ppsSyncData[i];
#if defined(DC_NOHW_DISCONTIG_BUFFERS)
psBuffer[i].psSysAddr = psDevInfo->asBackBuffers[i].psSysAddr;
#else
psBuffer[i].sSysAddr = psDevInfo->asBackBuffers[i].sSysAddr;
#endif
psBuffer[i].sDevVAddr = psDevInfo->asBackBuffers[i].sDevVAddr;
psBuffer[i].sCPUVAddr = psDevInfo->asBackBuffers[i].sCPUVAddr;
psBuffer[i].hSwapChain = (DC_HANDLE)psSwapChain;
}
/* mark swapchain's existence */
psDevInfo->psSwapChain = psSwapChain;
/* return swapchain handle */
*phSwapChain = (IMG_HANDLE)psSwapChain;
/* INTEGRATION_POINT: enable Vsync ISR */
return (PVRSRV_OK);
}