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authorKristian Høgsberg <krh@bitplanet.net>2010-04-09 17:16:33 -0400
committerKristian Høgsberg <krh@bitplanet.net>2010-04-09 17:16:33 -0400
commit5a43dbac687c63ea543035319e44ca7a0acf9ff9 (patch)
treec9726410d59f0452cf90300ec0f0e2f7ad3f452f
parentedb5253dfa0751e451dca7c9a494be4609390545 (diff)
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glx: Support direct rendering pbuffers
We've supported indirect rendering pbuffers for a while, but not direct rendering pbuffers. The way we do this is by creating a hidden pixmap and wrap that in a GLX pbuffer. This only works when we have DRI2 on the server, but if the server doesn't have DRI2, it won't expose configs with pbuffer bits enabled.
-rw-r--r--src/glx/glx_pbuffer.c226
1 files changed, 123 insertions, 103 deletions
diff --git a/src/glx/glx_pbuffer.c b/src/glx/glx_pbuffer.c
index 52e0671..2098cc6 100644
--- a/src/glx/glx_pbuffer.c
+++ b/src/glx/glx_pbuffer.c
@@ -127,64 +127,6 @@ ChangeDrawableAttribute(Display * dpy, GLXDrawable drawable,
}
-/**
- * Destroy a pbuffer.
- *
- * This function is used to implement \c glXDestroyPbuffer and
- * \c glXDestroyGLXPbufferSGIX.
- *
- * \note
- * This function dynamically determines whether to use the SGIX_pbuffer
- * version of the protocol or the GLX 1.3 version of the protocol.
- *
- * \todo
- * This function needs to be modified to work with direct-rendering drivers.
- */
-static void
-DestroyPbuffer(Display * dpy, GLXDrawable drawable)
-{
- __GLXdisplayPrivate *priv = __glXInitialize(dpy);
- CARD8 opcode;
-
- if ((dpy == NULL) || (drawable == 0)) {
- return;
- }
-
- opcode = __glXSetupForCommand(dpy);
- if (!opcode)
- return;
-
- LockDisplay(dpy);
-
- if ((priv->majorVersion > 1) || (priv->minorVersion >= 3)) {
- xGLXDestroyPbufferReq *req;
-
- GetReq(GLXDestroyPbuffer, req);
- req->reqType = opcode;
- req->glxCode = X_GLXDestroyPbuffer;
- req->pbuffer = (GLXPbuffer) drawable;
- }
- else {
- xGLXVendorPrivateWithReplyReq *vpreq;
- CARD32 *data;
-
- GetReqExtra(GLXVendorPrivateWithReply, 4, vpreq);
- data = (CARD32 *) (vpreq + 1);
-
- data[0] = (CARD32) drawable;
-
- vpreq->reqType = opcode;
- vpreq->glxCode = X_GLXVendorPrivateWithReply;
- vpreq->vendorCode = X_GLXvop_DestroyGLXPbufferSGIX;
- }
-
- UnlockDisplay(dpy);
- SyncHandle();
-
- return;
-}
-
-
#ifdef GLX_DIRECT_RENDERING
static GLenum
determineTextureTarget(const int *attribs, int numAttribs)
@@ -208,7 +150,6 @@ determineTextureTarget(const int *attribs, int numAttribs)
return target;
}
-
static GLenum
determineTextureFormat(const int *attribs, int numAttribs)
{
@@ -221,6 +162,66 @@ determineTextureFormat(const int *attribs, int numAttribs)
return 0;
}
+
+static void
+CreateDRIDrawable(Display *dpy, const __GLcontextModes *fbconfig,
+ XID drawable, XID glxdrawable,
+ const int *attrib_list, size_t num_attribs)
+{
+ __GLXdisplayPrivate *const priv = __glXInitialize(dpy);
+ __GLXDRIdrawable *pdraw;
+ __GLXscreenConfigs *psc;
+
+ psc = &priv->screenConfigs[fbconfig->screen];
+ if (psc->driScreen == NULL)
+ return;
+
+ pdraw = psc->driScreen->createDrawable(psc, drawable,
+ glxdrawable, fbconfig);
+ if (pdraw == NULL) {
+ fprintf(stderr, "failed to create drawable\n");
+ return;
+ }
+
+ if (__glxHashInsert(psc->drawHash, glxdrawable, pdraw)) {
+ (*pdraw->destroyDrawable) (pdraw);
+ return; /* FIXME: Check what we're supposed to do here... */
+ }
+
+ pdraw->textureTarget = determineTextureTarget(attrib_list, num_attribs);
+ pdraw->textureFormat = determineTextureFormat(attrib_list, num_attribs);
+}
+
+static void
+DestroyDRIDrawable(Display *dpy, GLXDrawable drawable, int destroy_xdrawable)
+{
+ int screen;
+ __GLXdisplayPrivate *const priv = __glXInitialize(dpy);
+ __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen);
+ __GLXscreenConfigs *psc = &priv->screenConfigs[screen];
+
+ if (pdraw != NULL) {
+ if (destroy_xdrawable)
+ XFreePixmap(psc->dpy, pdraw->xDrawable);
+ (*pdraw->destroyDrawable) (pdraw);
+ __glxHashDelete(psc->drawHash, drawable);
+ }
+}
+
+#else
+
+static void
+CreateDRIDrawable(Display *dpy, const __GLcontextModes * fbconfig,
+ XID drawable, XID glxdrawable,
+ const int *attrib_list, size_t num_attribs)
+{
+}
+
+static void
+DestroyDRIDrawable(Display *dpy, GLXDrawable drawable, int destroy_xdrawable)
+{
+}
+
#endif
/**
@@ -385,34 +386,7 @@ CreateDrawable(Display * dpy, const __GLcontextModes * fbconfig,
UnlockDisplay(dpy);
SyncHandle();
-#ifdef GLX_DIRECT_RENDERING
- do {
- /* FIXME: Maybe delay __DRIdrawable creation until the drawable
- * is actually bound to a context... */
-
- __GLXdisplayPrivate *const priv = __glXInitialize(dpy);
- __GLXDRIdrawable *pdraw;
- __GLXscreenConfigs *psc;
-
- psc = &priv->screenConfigs[fbconfig->screen];
- if (psc->driScreen == NULL)
- break;
- pdraw = psc->driScreen->createDrawable(psc, drawable,
- req->glxwindow, fbconfig);
- if (pdraw == NULL) {
- fprintf(stderr, "failed to create drawable\n");
- break;
- }
-
- if (__glxHashInsert(psc->drawHash, req->glxwindow, pdraw)) {
- (*pdraw->destroyDrawable) (pdraw);
- return None; /* FIXME: Check what we're supposed to do here... */
- }
-
- pdraw->textureTarget = determineTextureTarget(attrib_list, i);
- pdraw->textureFormat = determineTextureFormat(attrib_list, i);
- } while (0);
-#endif
+ CreateDRIDrawable(dpy, fbconfig, drawable, req->glxwindow, attrib_list, i);
return (GLXDrawable) req->glxwindow;
}
@@ -420,9 +394,6 @@ CreateDrawable(Display * dpy, const __GLcontextModes * fbconfig,
/**
* Destroy a non-pbuffer GLX drawable.
- *
- * \todo
- * This function needs to be modified to work with direct-rendering drivers.
*/
static void
DestroyDrawable(Display * dpy, GLXDrawable drawable, CARD32 glxCode)
@@ -449,19 +420,7 @@ DestroyDrawable(Display * dpy, GLXDrawable drawable, CARD32 glxCode)
UnlockDisplay(dpy);
SyncHandle();
-#ifdef GLX_DIRECT_RENDERING
- {
- int screen;
- __GLXdisplayPrivate *const priv = __glXInitialize(dpy);
- __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen);
- __GLXscreenConfigs *psc = &priv->screenConfigs[screen];
-
- if (pdraw != NULL) {
- (*pdraw->destroyDrawable) (pdraw);
- __glxHashDelete(psc->drawHash, drawable);
- }
- }
-#endif
+ DestroyDRIDrawable(dpy, drawable, GL_FALSE);
return;
}
@@ -490,6 +449,7 @@ CreatePbuffer(Display * dpy, const __GLcontextModes * fbconfig,
CARD32 *data;
CARD8 opcode;
unsigned int i;
+ Pixmap pixmap;
i = 0;
if (attrib_list) {
@@ -549,9 +509,69 @@ CreatePbuffer(Display * dpy, const __GLcontextModes * fbconfig,
UnlockDisplay(dpy);
SyncHandle();
+ pixmap = XCreatePixmap(dpy, RootWindow(dpy, fbconfig->screen),
+ width, height, fbconfig->rgbBits);
+
+ CreateDRIDrawable(dpy, fbconfig, pixmap, id, attrib_list, i);
+
return id;
}
+/**
+ * Destroy a pbuffer.
+ *
+ * This function is used to implement \c glXDestroyPbuffer and
+ * \c glXDestroyGLXPbufferSGIX.
+ *
+ * \note
+ * This function dynamically determines whether to use the SGIX_pbuffer
+ * version of the protocol or the GLX 1.3 version of the protocol.
+ */
+static void
+DestroyPbuffer(Display * dpy, GLXDrawable drawable)
+{
+ __GLXdisplayPrivate *priv = __glXInitialize(dpy);
+ CARD8 opcode;
+
+ if ((dpy == NULL) || (drawable == 0)) {
+ return;
+ }
+
+ opcode = __glXSetupForCommand(dpy);
+ if (!opcode)
+ return;
+
+ LockDisplay(dpy);
+
+ if ((priv->majorVersion > 1) || (priv->minorVersion >= 3)) {
+ xGLXDestroyPbufferReq *req;
+
+ GetReq(GLXDestroyPbuffer, req);
+ req->reqType = opcode;
+ req->glxCode = X_GLXDestroyPbuffer;
+ req->pbuffer = (GLXPbuffer) drawable;
+ }
+ else {
+ xGLXVendorPrivateWithReplyReq *vpreq;
+ CARD32 *data;
+
+ GetReqExtra(GLXVendorPrivateWithReply, 4, vpreq);
+ data = (CARD32 *) (vpreq + 1);
+
+ data[0] = (CARD32) drawable;
+
+ vpreq->reqType = opcode;
+ vpreq->glxCode = X_GLXVendorPrivateWithReply;
+ vpreq->vendorCode = X_GLXvop_DestroyGLXPbufferSGIX;
+ }
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ DestroyDRIDrawable(dpy, drawable, GL_TRUE);
+
+ return;
+}
/**
* Create a new pbuffer.