ad01e86b5c
For this first iteration of DRI2 we don't have any vsync functionality in place yet, so back out the support in DRI2 and the protocol for now.
321 lines
8.0 KiB
C
321 lines
8.0 KiB
C
/*
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* Copyright © 2007, 2008 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Soft-
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* ware"), to deal in the Software without restriction, including without
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* limitation the rights to use, copy, modify, merge, publish, distribute,
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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, provided that the above copyright
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* notice(s) and this permission notice appear in all copies of the Soft-
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* ware and that both the above copyright notice(s) and this permission
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* notice appear in supporting documentation.
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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 MERCHANTABIL-
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* ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
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* RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
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* THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
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* QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
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* MANCE OF THIS SOFTWARE.
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*
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* Except as contained in this notice, the name of a copyright holder shall
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* not be used in advertising or otherwise to promote the sale, use or
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* other dealings in this Software without prior written authorization of
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* the copyright holder.
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*
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* Authors:
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* Kristian Høgsberg (krh@redhat.com)
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <xf86drm.h>
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#include "xf86Module.h"
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#include "scrnintstr.h"
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#include "windowstr.h"
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#include "dri2.h"
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#include "xf86.h"
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static int dri2ScreenPrivateKeyIndex;
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static DevPrivateKey dri2ScreenPrivateKey = &dri2ScreenPrivateKeyIndex;
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static int dri2WindowPrivateKeyIndex;
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static DevPrivateKey dri2WindowPrivateKey = &dri2WindowPrivateKeyIndex;
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static int dri2PixmapPrivateKeyIndex;
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static DevPrivateKey dri2PixmapPrivateKey = &dri2PixmapPrivateKeyIndex;
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typedef struct _DRI2Drawable {
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unsigned int refCount;
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int width;
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int height;
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DRI2BufferPtr buffers;
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int bufferCount;
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unsigned int pendingSequence;
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} DRI2DrawableRec, *DRI2DrawablePtr;
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typedef struct _DRI2Screen {
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const char *driverName;
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const char *deviceName;
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int fd;
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unsigned int lastSequence;
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DRI2CreateBuffersProcPtr CreateBuffers;
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DRI2DestroyBuffersProcPtr DestroyBuffers;
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DRI2CopyRegionProcPtr CopyRegion;
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HandleExposuresProcPtr HandleExposures;
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} DRI2ScreenRec, *DRI2ScreenPtr;
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static DRI2ScreenPtr
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DRI2GetScreen(ScreenPtr pScreen)
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{
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return dixLookupPrivate(&pScreen->devPrivates, dri2ScreenPrivateKey);
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}
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static DRI2DrawablePtr
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DRI2GetDrawable(DrawablePtr pDraw)
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{
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WindowPtr pWin;
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PixmapPtr pPixmap;
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if (pDraw->type == DRAWABLE_WINDOW)
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{
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pWin = (WindowPtr) pDraw;
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return dixLookupPrivate(&pWin->devPrivates, dri2WindowPrivateKey);
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}
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else
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{
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pPixmap = (PixmapPtr) pDraw;
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return dixLookupPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey);
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}
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}
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_X_EXPORT int
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DRI2CreateDrawable(DrawablePtr pDraw)
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{
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WindowPtr pWin;
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PixmapPtr pPixmap;
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DRI2DrawablePtr pPriv;
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pPriv = DRI2GetDrawable(pDraw);
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if (pPriv != NULL)
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{
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pPriv->refCount++;
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return Success;
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}
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pPriv = xalloc(sizeof *pPriv);
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if (pPriv == NULL)
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return BadAlloc;
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pPriv->refCount = 1;
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pPriv->width = pDraw->width;
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pPriv->height = pDraw->height;
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pPriv->buffers = NULL;
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pPriv->bufferCount = 0;
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if (pDraw->type == DRAWABLE_WINDOW)
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{
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pWin = (WindowPtr) pDraw;
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dixSetPrivate(&pWin->devPrivates, dri2WindowPrivateKey, pPriv);
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}
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else
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{
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pPixmap = (PixmapPtr) pDraw;
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dixSetPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey, pPriv);
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}
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return Success;
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}
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_X_EXPORT DRI2BufferPtr
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DRI2GetBuffers(DrawablePtr pDraw, int *width, int *height,
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unsigned int *attachments, int count, int *out_count)
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{
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DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen);
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DRI2DrawablePtr pPriv = DRI2GetDrawable(pDraw);
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DRI2BufferPtr buffers;
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if (pPriv->buffers == NULL ||
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pDraw->width != pPriv->width || pDraw->height != pPriv->height)
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{
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buffers = (*ds->CreateBuffers)(pDraw, attachments, count);
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(*ds->DestroyBuffers)(pDraw, pPriv->buffers, pPriv->bufferCount);
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pPriv->buffers = buffers;
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pPriv->bufferCount = count;
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pPriv->width = pDraw->width;
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pPriv->height = pDraw->height;
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}
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*width = pPriv->width;
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*height = pPriv->height;
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*out_count = pPriv->bufferCount;
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return pPriv->buffers;
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}
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_X_EXPORT int
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DRI2CopyRegion(DrawablePtr pDraw, RegionPtr pRegion,
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unsigned int dest, unsigned int src)
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{
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DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen);
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DRI2DrawablePtr pPriv;
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DRI2BufferPtr pDestBuffer, pSrcBuffer;
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int i;
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pPriv = DRI2GetDrawable(pDraw);
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if (pPriv == NULL)
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return BadDrawable;
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pDestBuffer = NULL;
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pSrcBuffer = NULL;
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for (i = 0; i < pPriv->bufferCount; i++)
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{
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if (pPriv->buffers[i].attachment == dest)
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pDestBuffer = &pPriv->buffers[i];
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if (pPriv->buffers[i].attachment == src)
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pSrcBuffer = &pPriv->buffers[i];
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}
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if (pSrcBuffer == NULL || pDestBuffer == NULL)
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return BadValue;
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(*ds->CopyRegion)(pDraw, pRegion, pDestBuffer, pSrcBuffer);
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return Success;
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}
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_X_EXPORT void
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DRI2DestroyDrawable(DrawablePtr pDraw)
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{
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DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen);
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DRI2DrawablePtr pPriv;
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WindowPtr pWin;
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PixmapPtr pPixmap;
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pPriv = DRI2GetDrawable(pDraw);
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if (pPriv == NULL)
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return;
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pPriv->refCount--;
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if (pPriv->refCount > 0)
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return;
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(*ds->DestroyBuffers)(pDraw, pPriv->buffers, pPriv->bufferCount);
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xfree(pPriv);
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if (pDraw->type == DRAWABLE_WINDOW)
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{
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pWin = (WindowPtr) pDraw;
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dixSetPrivate(&pWin->devPrivates, dri2WindowPrivateKey, NULL);
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}
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else
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{
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pPixmap = (PixmapPtr) pDraw;
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dixSetPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey, NULL);
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}
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}
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_X_EXPORT Bool
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DRI2Connect(ScreenPtr pScreen, unsigned int driverType, int *fd,
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const char **driverName, const char **deviceName)
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{
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DRI2ScreenPtr ds = DRI2GetScreen(pScreen);
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if (ds == NULL)
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return FALSE;
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if (driverType != DRI2DriverDRI)
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return BadValue;
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*fd = ds->fd;
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*driverName = ds->driverName;
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*deviceName = ds->deviceName;
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return TRUE;
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}
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_X_EXPORT Bool
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DRI2Authenticate(ScreenPtr pScreen, drm_magic_t magic)
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{
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DRI2ScreenPtr ds = DRI2GetScreen(pScreen);
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if (ds == NULL || drmAuthMagic(ds->fd, magic))
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return FALSE;
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return TRUE;
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}
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_X_EXPORT Bool
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DRI2ScreenInit(ScreenPtr pScreen, DRI2InfoPtr info)
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{
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DRI2ScreenPtr ds;
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ds = xalloc(sizeof *ds);
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if (!ds)
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return FALSE;
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ds->fd = info->fd;
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ds->driverName = info->driverName;
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ds->deviceName = info->deviceName;
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ds->CreateBuffers = info->CreateBuffers;
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ds->DestroyBuffers = info->DestroyBuffers;
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ds->CopyRegion = info->CopyRegion;
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dixSetPrivate(&pScreen->devPrivates, dri2ScreenPrivateKey, ds);
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xf86DrvMsg(pScreen->myNum, X_INFO, "[DRI2] Setup complete\n");
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return TRUE;
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}
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_X_EXPORT void
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DRI2CloseScreen(ScreenPtr pScreen)
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{
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DRI2ScreenPtr ds = DRI2GetScreen(pScreen);
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xfree(ds);
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dixSetPrivate(&pScreen->devPrivates, dri2ScreenPrivateKey, NULL);
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}
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extern ExtensionModule dri2ExtensionModule;
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static pointer
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DRI2Setup(pointer module, pointer opts, int *errmaj, int *errmin)
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{
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static Bool setupDone = FALSE;
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if (!setupDone)
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{
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setupDone = TRUE;
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LoadExtension(&dri2ExtensionModule, FALSE);
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}
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else
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{
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if (errmaj)
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*errmaj = LDR_ONCEONLY;
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}
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return (pointer) 1;
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}
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static XF86ModuleVersionInfo DRI2VersRec =
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{
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"dri2",
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MODULEVENDORSTRING,
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MODINFOSTRING1,
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MODINFOSTRING2,
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XORG_VERSION_CURRENT,
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1, 0, 0,
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ABI_CLASS_EXTENSION,
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ABI_EXTENSION_VERSION,
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MOD_CLASS_NONE,
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{ 0, 0, 0, 0 }
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};
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_X_EXPORT XF86ModuleData dri2ModuleData = { &DRI2VersRec, DRI2Setup, NULL };
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