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glx: add support for a reallyFlush() function before swap occurs.

This commit is contained in:
Alan Hourihane 2009-02-19 18:39:08 +00:00
parent 4fc7cde770
commit 65562453fb
4 changed files with 38 additions and 0 deletions
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11
include/GL/internal/dri_interface.h
View File

@ -78,6 +78,7 @@ typedef struct __DRIswrastExtensionRec __DRIswrastExtension;
typedef struct __DRIbufferRec __DRIbuffer;
typedef struct __DRIdri2ExtensionRec __DRIdri2Extension;
typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension;
typedef struct __DRI2flushExtensionRec __DRI2flushExtension;
/*@}*/
@ -245,6 +246,16 @@ struct __DRItexBufferExtensionRec {
__DRIdrawable *pDraw);
};
/**
* Used by drivers that implement DRI2
*/
#define __DRI2_FLUSH "DRI2_Flush"
#define __DRI2_FLUSH_VERSION 1
struct __DRI2flushExtensionRec {
__DRIextension base;
void (*flush)(__DRIdrawable *drawable);
};
/**
* XML document describing the configuration options supported by the

16
src/glx/x11/dri2_glx.c
View File

@ -208,7 +208,13 @@ static void dri2CopySubBuffer(__GLXDRIdrawable *pdraw,
xrect.width = width;
xrect.height = height;
#ifdef __DRI2_FLUSH
if (pdraw->psc->f)
(*pdraw->psc->f->flush)(pdraw->driDrawable);
#endif
region = XFixesCreateRegion(pdraw->psc->dpy, &xrect, 1);
/* should get a fence ID back from here at some point */
DRI2CopyRegion(pdraw->psc->dpy, pdraw->drawable, region,
DRI2BufferFrontLeft, DRI2BufferBackLeft);
XFixesDestroyRegion(pdraw->psc->dpy, region);
@ -236,6 +242,11 @@ static void dri2WaitX(__GLXDRIdrawable *pdraw)
xrect.width = priv->width;
xrect.height = priv->height;
#ifdef __DRI2_FLUSH
if (pdraw->psc->f)
(*pdraw->psc->f->flush)(pdraw->driDrawable);
#endif
region = XFixesCreateRegion(pdraw->psc->dpy, &xrect, 1);
DRI2CopyRegion(pdraw->psc->dpy, pdraw->drawable, region,
DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft);
@ -256,6 +267,11 @@ static void dri2WaitGL(__GLXDRIdrawable *pdraw)
xrect.width = priv->width;
xrect.height = priv->height;
#ifdef __DRI2_FLUSH
if (pdraw->psc->f)
(*pdraw->psc->f->flush)(pdraw->driDrawable);
#endif
region = XFixesCreateRegion(pdraw->psc->dpy, &xrect, 1);
DRI2CopyRegion(pdraw->psc->dpy, pdraw->drawable, region,
DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft);

7
src/glx/x11/dri_common.c
View File

@ -392,6 +392,13 @@ driBindExtensions(__GLXscreenConfigs *psc, int dri2)
}
#endif
#ifdef __DRI2_FLUSH
if ((strcmp(extensions[i]->name, __DRI2_FLUSH) == 0) && dri2) {
psc->f = (__DRI2flushExtension *) extensions[i];
/* internal driver extension, no GL extension exposed */
}
#endif
/* Ignore unknown extensions */
}
}

4
src/glx/x11/glxclient.h
View File

@ -519,6 +519,10 @@ struct __GLXscreenConfigsRec {
const __DRItexBufferExtension *texBuffer;
#endif
#ifdef __DRI2_FLUSH
const __DRI2flushExtension *f;
#endif
#endif
/**