mesa/mesa-7.6-dri2-page-flip.patch

diff -up mesa-20090909/include/GL/internal/dri_interface.h.da mesa-20090909/include/GL/internal/dri_interface.h
--- mesa-20090909/include/GL/internal/dri_interface.h.da	2009-09-09 09:43:36.000000000 +1000
+++ mesa-20090909/include/GL/internal/dri_interface.h	2009-09-09 08:56:48.000000000 +1000
@@ -262,10 +262,22 @@ struct __DRItexBufferExtensionRec {
  * Used by drivers that implement DRI2
  */
 #define __DRI2_FLUSH "DRI2_Flush"
-#define __DRI2_FLUSH_VERSION 1
+#define __DRI2_FLUSH_VERSION 2
 struct __DRI2flushExtensionRec {
     __DRIextension base;
     void (*flush)(__DRIdrawable *drawable);
+
+    /**
+     * Flush all rendering queue in the driver to the drm and
+     * invalidate all buffers.  The driver will call out to
+     * getBuffers/getBuffersWithFormat before it starts rendering
+     * again.
+     *
+     * \param drawable the drawable to flush and invalidate
+     *
+     * \since 2
+     */
+    void (*flushInvalidate)(__DRIdrawable *drawable);
 };
 
 
diff -up mesa-20090909/src/glx/x11/dri2.c.da mesa-20090909/src/glx/x11/dri2.c
--- mesa-20090909/src/glx/x11/dri2.c.da	2009-09-09 09:43:36.000000000 +1000
+++ mesa-20090909/src/glx/x11/dri2.c	2009-09-09 08:56:48.000000000 +1000
@@ -377,3 +377,19 @@ DRI2CopyRegion(Display * dpy, XID drawab
    UnlockDisplay(dpy);
    SyncHandle();
 }
+
+void DRI2SwapBuffers(Display *dpy, XID drawable)
+{
+    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+    xDRI2SwapBuffersReq *req;
+
+    XextSimpleCheckExtension (dpy, info, dri2ExtensionName);
+
+    LockDisplay(dpy);
+    GetReq(DRI2SwapBuffers, req);
+    req->reqType = info->codes->major_opcode;
+    req->dri2ReqType = X_DRI2SwapBuffers;
+    req->drawable = drawable;
+    UnlockDisplay(dpy);
+    SyncHandle();
+}
diff -up mesa-20090909/src/glx/x11/dri2_glx.c.da mesa-20090909/src/glx/x11/dri2_glx.c
--- mesa-20090909/src/glx/x11/dri2_glx.c.da	2009-09-09 09:43:36.000000000 +1000
+++ mesa-20090909/src/glx/x11/dri2_glx.c	2009-09-09 09:01:13.000000000 +1000
@@ -35,6 +35,7 @@
 #include <X11/Xlib.h>
 #include <X11/extensions/Xfixes.h>
 #include <X11/extensions/Xdamage.h>
+#include "glapi.h"
 #include "glxclient.h"
 #include "glcontextmodes.h"
 #include "xf86dri.h"
@@ -64,6 +65,8 @@ struct __GLXDRIdisplayPrivateRec
    int driMajor;
    int driMinor;
    int driPatch;
+
+   int swapAvailable;
 };
 
 struct __GLXDRIcontextPrivateRec
@@ -232,14 +235,6 @@ dri2CopySubBuffer(__GLXDRIdrawable * pdr
 }
 
 static void
-dri2SwapBuffers(__GLXDRIdrawable * pdraw)
-{
-   __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw;
-
-   dri2CopySubBuffer(pdraw, 0, 0, priv->width, priv->height);
-}
-
-static void
 dri2WaitX(__GLXDRIdrawable * pdraw)
 {
    __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw;
@@ -342,6 +337,31 @@ process_buffers(__GLXDRIdrawablePrivate 
 
 }
 
+static void dri2SwapBuffers(__GLXDRIdrawable *pdraw)
+{
+    __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw;
+    __GLXdisplayPrivate *dpyPriv = __glXInitialize(priv->base.psc->dpy);
+    __GLXDRIdisplayPrivate *pdp =
+	(__GLXDRIdisplayPrivate *)dpyPriv->dri2Display;
+    __GLXscreenConfigs *psc = pdraw->psc;
+
+#ifdef __DRI2_FLUSH
+    if (pdraw->psc->f)
+    	(*pdraw->psc->f->flush)(pdraw->driDrawable);
+#endif
+
+    /* Old servers can't handle swapbuffers */
+    if (!pdp->swapAvailable)
+	return dri2CopySubBuffer(pdraw, 0, 0, priv->width, priv->height);
+
+    DRI2SwapBuffers(pdraw->psc->dpy, pdraw->drawable);
+
+#if __DRI2_FLUSH_VERSION >= 2
+    if (pdraw->psc->f)
+       (*pdraw->psc->f->flushInvalidate)(pdraw->driDrawable);
+#endif
+}
+
 static __DRIbuffer *
 dri2GetBuffers(__DRIdrawable * driDrawable,
                int *width, int *height,
@@ -559,6 +579,9 @@ dri2CreateDisplay(Display * dpy)
    }
 
    pdp->driPatch = 0;
+   pdp->swapAvailable = 0;
+   if (pdp->driMinor >= 2)
+      pdp->swapAvailable = 1;
 
    pdp->base.destroyDisplay = dri2DestroyDisplay;
    pdp->base.createScreen = dri2CreateScreen;
diff -up mesa-20090909/src/glx/x11/dri2.h.da mesa-20090909/src/glx/x11/dri2.h
--- mesa-20090909/src/glx/x11/dri2.h.da	2009-09-09 09:43:36.000000000 +1000
+++ mesa-20090909/src/glx/x11/dri2.h	2009-09-09 08:56:48.000000000 +1000
@@ -85,4 +85,7 @@ DRI2CopyRegion(Display * dpy, XID drawab
                XserverRegion region,
                CARD32 dest, CARD32 src);
 
+extern void
+DRI2SwapBuffers(Display *dpy, XID drawable);
+
 #endif
diff -up mesa-20090909/src/mesa/drivers/dri/common/dri_util.c.da mesa-20090909/src/mesa/drivers/dri/common/dri_util.c
--- mesa-20090909/src/mesa/drivers/dri/common/dri_util.c.da	2009-09-09 09:43:36.000000000 +1000
+++ mesa-20090909/src/mesa/drivers/dri/common/dri_util.c	2009-09-09 08:56:48.000000000 +1000
@@ -453,6 +453,7 @@ driCreateNewDrawable(__DRIscreen *psp, c
 
     pdp->driScreenPriv = psp;
     pdp->driContextPriv = &psp->dummyContextPriv;
+    pdp->validBuffers = GL_FALSE;
 
     if (!(*psp->DriverAPI.CreateBuffer)(psp, pdp, &config->modes,
 					renderType == GLX_PIXMAP_BIT)) {
diff -up mesa-20090909/src/mesa/drivers/dri/common/dri_util.h.da mesa-20090909/src/mesa/drivers/dri/common/dri_util.h
--- mesa-20090909/src/mesa/drivers/dri/common/dri_util.h.da	2009-09-09 09:43:36.000000000 +1000
+++ mesa-20090909/src/mesa/drivers/dri/common/dri_util.h	2009-09-09 08:56:48.000000000 +1000
@@ -380,6 +380,8 @@ struct __DRIdrawableRec {
      * GLX_MESA_swap_control.
      */
     unsigned int swap_interval;
+
+    GLboolean validBuffers;
 };
 
 /**
diff -up mesa-20090909/src/mesa/drivers/dri/intel/intel_context.c.da mesa-20090909/src/mesa/drivers/dri/intel/intel_context.c
--- mesa-20090909/src/mesa/drivers/dri/intel/intel_context.c.da	2009-09-09 09:43:36.000000000 +1000
+++ mesa-20090909/src/mesa/drivers/dri/intel/intel_context.c	2009-09-09 08:56:48.000000000 +1000
@@ -72,8 +72,6 @@ int INTEL_DEBUG = (0);
 #define DRIVER_DATE_GEM                 "GEM " DRIVER_DATE
 
 
-static void intel_flush(GLcontext *ctx, GLboolean needs_mi_flush);
-
 static const GLubyte *
 intelGetString(GLcontext * ctx, GLenum name)
 {
@@ -391,6 +389,7 @@ intel_update_renderbuffers(__DRIcontext 
        }
    }
 
+   drawable->validBuffers = GL_TRUE;
    driUpdateFramebufferSize(&intel->ctx, drawable);
 }
 
@@ -478,7 +477,7 @@ intelInvalidateState(GLcontext * ctx, GL
       intel->vtbl.invalidate_state( intel, new_state );
 }
 
-static void
+void
 intel_flush(GLcontext *ctx, GLboolean needs_mi_flush)
 {
    struct intel_context *intel = intel_context(ctx);
@@ -936,11 +935,7 @@ intelMakeCurrent(__DRIcontextPrivate * d
 	 (struct intel_framebuffer *) driDrawPriv->driverPrivate;
       GLframebuffer *readFb = (GLframebuffer *) driReadPriv->driverPrivate;
  
-      if (driContextPriv->driScreenPriv->dri2.enabled) {     
-          intel_update_renderbuffers(driContextPriv, driDrawPriv);
-          if (driDrawPriv != driReadPriv)
-              intel_update_renderbuffers(driContextPriv, driReadPriv);
-      } else {
+      if (!driContextPriv->driScreenPriv->dri2.enabled) {     
           /* XXX FBO temporary fix-ups!  These are released in 
            * intelDextroyContext(), above.  Changes here should be
            * reflected there.
@@ -1095,6 +1090,10 @@ void LOCK_HARDWARE( struct intel_context
     if (intel->driDrawable) {
        intel_fb = intel->driDrawable->driverPrivate;
 
+       if (!intel->driDrawable->validBuffers)
+	  intel_update_renderbuffers(intel->driContext,
+				     intel->driDrawable);
+
        if (intel_fb)
 	  intel_rb =
 	     intel_get_renderbuffer(&intel_fb->Base,
diff -up mesa-20090909/src/mesa/drivers/dri/intel/intel_context.h.da mesa-20090909/src/mesa/drivers/dri/intel/intel_context.h
--- mesa-20090909/src/mesa/drivers/dri/intel/intel_context.h.da	2009-09-09 09:43:36.000000000 +1000
+++ mesa-20090909/src/mesa/drivers/dri/intel/intel_context.h	2009-09-09 08:56:48.000000000 +1000
@@ -473,6 +473,7 @@ extern void intelGetLock(struct intel_co
 
 extern void intelFinish(GLcontext * ctx);
 extern void intelFlush(GLcontext * ctx);
+extern void intel_flush(GLcontext * ctx, GLboolean needs_mi_flush);
 
 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 
diff -up mesa-20090909/src/mesa/drivers/dri/intel/intel_extensions.h.da mesa-20090909/src/mesa/drivers/dri/intel/intel_extensions.h
--- mesa-20090909/src/mesa/drivers/dri/intel/intel_extensions.h.da	2009-09-09 09:43:36.000000000 +1000
+++ mesa-20090909/src/mesa/drivers/dri/intel/intel_extensions.h	2009-09-09 08:56:48.000000000 +1000
@@ -32,5 +32,8 @@
 extern void
 intelInitExtensions(GLcontext *ctx, GLboolean enable_imaging);
 
+extern void
+intelFlushDrawable(__DRIdrawable *drawable);
+
 
 #endif
diff -up mesa-20090909/src/mesa/drivers/dri/intel/intel_screen.c.da mesa-20090909/src/mesa/drivers/dri/intel/intel_screen.c
--- mesa-20090909/src/mesa/drivers/dri/intel/intel_screen.c.da	2009-09-09 08:56:16.000000000 +1000
+++ mesa-20090909/src/mesa/drivers/dri/intel/intel_screen.c	2009-09-09 08:56:48.000000000 +1000
@@ -229,6 +229,28 @@ static const __DRItexBufferExtension int
    intelSetTexBuffer2,
 };
 
+static void
+intelDRI2Flush(__DRIdrawable *drawable)
+{
+   struct intel_context *intel = drawable->driContextPriv->driverPrivate;
+   GLcontext *ctx = &intel->ctx;
+
+   intel_flush(ctx, GL_TRUE);
+}
+
+static void
+intelDRI2FlushInvalidate(__DRIdrawable *drawable)
+{
+   intelDRI2Flush(drawable);
+   drawable->validBuffers = GL_FALSE;
+}
+
+static const struct __DRI2flushExtensionRec intelFlushExtension = {
+    { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
+    intelDRI2Flush,
+    intelDRI2FlushInvalidate,
+};
+
 static const __DRIextension *intelScreenExtensions[] = {
     &driReadDrawableExtension,
     &driCopySubBufferExtension.base,
@@ -237,6 +259,7 @@ static const __DRIextension *intelScreen
     &driMediaStreamCounterExtension.base,
     &intelTexOffsetExtension.base,
     &intelTexBufferExtension.base,
+    &intelFlushExtension.base,
     NULL
 };
 
@@ -517,11 +540,9 @@ intelFillInModes(__DRIscreenPrivate *psp
    unsigned back_buffer_factor;
    int i;
 
-   /* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
-    * support pageflipping at all.
-    */
    static const GLenum back_buffer_modes[] = {
-      GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
+       GLX_NONE, GLX_SWAP_UNDEFINED_OML,
+       GLX_SWAP_EXCHANGE_OML, GLX_SWAP_COPY_OML
    };
 
    uint8_t depth_bits_array[3];
@@ -742,11 +763,10 @@ __DRIconfig **intelInitScreen2(__DRIscre
    intelScreenPrivate *intelScreen;
    GLenum fb_format[3];
    GLenum fb_type[3];
-   /* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
-    * support pageflipping at all.
-    */
+
    static const GLenum back_buffer_modes[] = {
-      GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
+       GLX_NONE, GLX_SWAP_UNDEFINED_OML,
+       GLX_SWAP_EXCHANGE_OML, GLX_SWAP_COPY_OML
    };
    uint8_t depth_bits[4], stencil_bits[4], msaa_samples_array[1];
    int color;
diff -up mesa-20090909/src/mesa/drivers/dri/intel/intel_tex_image.c.da mesa-20090909/src/mesa/drivers/dri/intel/intel_tex_image.c
--- mesa-20090909/src/mesa/drivers/dri/intel/intel_tex_image.c.da	2009-09-09 09:43:36.000000000 +1000
+++ mesa-20090909/src/mesa/drivers/dri/intel/intel_tex_image.c	2009-09-09 08:56:48.000000000 +1000
@@ -747,7 +747,8 @@ intelSetTexBuffer2(__DRIcontext *pDRICtx
    if (!intelObj)
       return;
 
-   intel_update_renderbuffers(pDRICtx, dPriv);
+   if (!dPriv->validBuffers)
+      intel_update_renderbuffers(pDRICtx, dPriv);
 
    rb = intel_fb->color_rb[0];
    /* If the region isn't set, then intel_update_renderbuffers was unable