Merge commit 'origin/gallium-0.1' into gallium-0.2

[mesa.git] / src / glx / x11 / dri2_glx.c

diff --git a/src/glx/x11/dri2_glx.c b/src/glx/x11/dri2_glx.c
index 39b618e718a6f95370d044bfd645874b98b10fc6..2bee67780bde8defb78725b362af5f7e03be45c6 100644 (file)
--- a/src/glx/x11/dri2_glx.c
+++ b/src/glx/x11/dri2_glx.c
@@ -1,4 +1,3 @@
-/* -*- mode: c; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 3; coding: utf-8-unix -*- */
 /*
  * Copyright © 2008 Red Hat, Inc.
  *
@@ -39,8 +38,9 @@
 #include "glxclient.h"
 #include "glcontextmodes.h"
 #include "xf86dri.h"
-#include "sarea.h"
 #include <dlfcn.h>
+#include <fcntl.h>
+#include <unistd.h>
 #include <sys/types.h>
 #include <sys/mman.h>
 #include "xf86drm.h"
@@ -183,19 +183,36 @@ static __GLXDRIdrawable *dri2CreateDrawable(__GLXscreenConfigs *psc,
     return &pdraw->base;
 }
 
+static void dri2CopySubBuffer(__GLXDRIdrawable *pdraw,
+                             int x, int y, int width, int height)
+{
+    __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw;
+    XRectangle xrect;
+    XserverRegion region;
+
+    xrect.x = x;
+    xrect.y = priv->height - y - height;
+    xrect.width = width;
+    xrect.height = height;
+
+    region = XFixesCreateRegion(pdraw->psc->dpy, &xrect, 1);
+    DRI2CopyRegion(pdraw->psc->dpy, pdraw->drawable, region,
+                  DRI2BufferFrontLeft, DRI2BufferBackLeft);
+    XFixesDestroyRegion(pdraw->psc->dpy, region);
+}
+
 static void dri2SwapBuffers(__GLXDRIdrawable *pdraw)
 {
     __GLXDRIdrawablePrivate *priv = (__GLXDRIdrawablePrivate *) pdraw;
 
-    DRI2SwapBuffers(pdraw->psc->dpy, pdraw->drawable,
-                   0, 0, priv->width, priv->height);
+    dri2CopySubBuffer(pdraw, 0, 0, priv->width, priv->height);
 }
 
 static void dri2DestroyScreen(__GLXscreenConfigs *psc)
 {
     /* Free the direct rendering per screen data */
     (*psc->core->destroyScreen)(psc->__driScreen);
-    drmClose(psc->fd);
+    close(psc->fd);
     psc->__driScreen = NULL;
 }
 
@@ -249,8 +266,7 @@ static __GLXDRIscreen *dri2CreateScreen(__GLXscreenConfigs *psc, int screen,
     const __DRIconfig **driver_configs;
     const __DRIextension **extensions;
     __GLXDRIscreen *psp;
-    unsigned int sareaHandle;
-    char *driverName, *busID;
+    char *driverName, *deviceName;
     drm_magic_t magic;
     int i;
 
@@ -261,7 +277,8 @@ static __GLXDRIscreen *dri2CreateScreen(__GLXscreenConfigs *psc, int screen,
     /* Initialize per screen dynamic client GLX extensions */
     psc->ext_list_first_time = GL_TRUE;
 
-    if (!DRI2Connect(psc->dpy, screen, &driverName, &busID, &sareaHandle))
+    if (!DRI2Connect(psc->dpy, RootWindow(psc->dpy, screen),
+                    &driverName, &deviceName))
        return NULL;
 
     psc->driver = driOpenDriver(driverName);
@@ -286,7 +303,7 @@ static __GLXDRIscreen *dri2CreateScreen(__GLXscreenConfigs *psc, int screen,
        goto handle_error;
     }
 
-    psc->fd = drmOpen(NULL, busID);
+    psc->fd = open(deviceName, O_RDWR);
     if (psc->fd < 0) {
        ErrorMessageF("failed to open drm device: %s\n", strerror(errno));
        return NULL;
@@ -295,10 +312,8 @@ static __GLXDRIscreen *dri2CreateScreen(__GLXscreenConfigs *psc, int screen,
     if (drmGetMagic(psc->fd, &magic))
        return NULL;
 
-    if (!DRI2AuthConnection(psc->dpy, screen, magic)) {
-       ErrorMessageF("failed to authenticate drm access\n");
+    if (!DRI2Authenticate(psc->dpy, RootWindow(psc->dpy, screen), magic))
        return NULL;
-    }
 
     psc->__driScreen = 
        psc->dri2->createNewScreen(screen, psc->fd,
@@ -318,14 +333,19 @@ static __GLXDRIscreen *dri2CreateScreen(__GLXscreenConfigs *psc, int screen,
     psp->createDrawable = dri2CreateDrawable;
     psp->swapBuffers = dri2SwapBuffers;
 
+    /* DRI2 suports SubBuffer through DRI2CopyRegion, so it's always
+     * available.*/
+    psp->copySubBuffer = dri2CopySubBuffer;
+    __glXEnableDirectExtension(psc, "GLX_MESA_copy_sub_buffer");
+
     Xfree(driverName);
-    Xfree(busID);
+    Xfree(deviceName);
 
     return psp;
 
  handle_error:
     Xfree(driverName);
-    Xfree(busID);
+    Xfree(deviceName);
 
     /* FIXME: clean up here */