5 files changed, 25 insertions, 12 deletions

diff --git a/src/gallium/state_trackers/xorg/xorg_dri2.c b/src/gallium/state_trackers/xorg/xorg_dri2.c
index 9a7c3568603..ca3c712dcd2 100644
--- a/src/gallium/state_trackers/xorg/xorg_dri2.c
+++ b/src/gallium/state_trackers/xorg/xorg_dri2.c
@@ -276,6 +276,7 @@ driCopyRegion(DrawablePtr pDraw, RegionPtr pRegion,
     PixmapPtr dst_pixmap;
     GCPtr gc;
     RegionPtr copy_clip;
+    Bool save_accel;
 
     /*
      * In driCreateBuffers we dewrap windows into the
@@ -341,8 +342,11 @@ driCopyRegion(DrawablePtr pDraw, RegionPtr pRegion,
 	}
     }
 
+    save_accel = ms->exa->accel;
+    ms->exa->accel = TRUE;
     (*gc->ops->CopyArea)(&src_pixmap->drawable, &dst_pixmap->drawable, gc,
 			 0, 0, pDraw->width, pDraw->height, 0, 0);
+    ms->exa->accel = save_accel;
 
     FreeScratchGC(gc);
 
diff --git a/src/gallium/state_trackers/xorg/xorg_driver.c b/src/gallium/state_trackers/xorg/xorg_driver.c
index 26cf2dd7723..d949167adce 100644
--- a/src/gallium/state_trackers/xorg/xorg_driver.c
+++ b/src/gallium/state_trackers/xorg/xorg_driver.c
@@ -75,10 +75,12 @@ static Bool PreInit(ScrnInfoPtr pScrn, int flags);
 typedef enum
 {
     OPTION_SW_CURSOR,
+    OPTION_2D_ACCEL,
 } modesettingOpts;
 
 static const OptionInfoRec Options[] = {
     {OPTION_SW_CURSOR, "SWcursor", OPTV_BOOLEAN, {0}, FALSE},
+    {OPTION_2D_ACCEL, "2DAccel", OPTV_BOOLEAN, {0}, FALSE},
     {-1, NULL, OPTV_NONE, {0}, FALSE}
 };
 
@@ -609,7 +611,8 @@ ScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
 
     xf86SetBlackWhitePixels(pScreen);
 
-    ms->exa = xorg_exa_init(pScrn);
+    ms->exa = xorg_exa_init(pScrn, xf86ReturnOptValBool(ms->Options,
+                                                        OPTION_2D_ACCEL, TRUE));
     ms->debug_fallback = debug_get_bool_option("XORG_DEBUG_FALLBACK", TRUE);
 
     xorg_init_video(pScreen);
diff --git a/src/gallium/state_trackers/xorg/xorg_exa.c b/src/gallium/state_trackers/xorg/xorg_exa.c
index 29fc8617489..3a51ad2d598 100644
--- a/src/gallium/state_trackers/xorg/xorg_exa.c
+++ b/src/gallium/state_trackers/xorg/xorg_exa.c
@@ -46,7 +46,6 @@
 #include "util/u_rect.h"
 
 #define DEBUG_PRINT 0
-#define ACCEL_ENABLED TRUE
 
 /*
  * Helper functions
@@ -376,7 +375,7 @@ ExaPrepareSolid(PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg)
 	XORG_FALLBACK("format %s", pf_name(priv->tex->format));
     }
 
-    return ACCEL_ENABLED && xorg_solid_bind_state(exa, priv, fg);
+    return exa->accel && xorg_solid_bind_state(exa, priv, fg);
 }
 
 static void
@@ -435,7 +434,7 @@ ExaPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr pDstPixmap, int xdir,
     exa->copy.src = src_priv;
     exa->copy.dst = priv;
 
-    return ACCEL_ENABLED;
+    return exa->accel;
 }
 
 static void
@@ -564,7 +563,7 @@ ExaPrepareComposite(int op, PicturePtr pSrcPicture,
                        render_format_name(pMaskPicture->format));
    }
 
-   return ACCEL_ENABLED &&
+   return exa->accel &&
           xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
                                     pDstPicture,
                                     pSrc ? exaGetPixmapDriverPrivate(pSrc) : NULL,
@@ -597,6 +596,9 @@ ExaCheckComposite(int op,
 		  PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 		  PicturePtr pDstPicture)
 {
+   ScrnInfoPtr pScrn = xf86Screens[pDstPicture->pDrawable->pScreen->myNum];
+   modesettingPtr ms = modesettingPTR(pScrn);
+   struct exa_context *exa = ms->exa;
    boolean accelerated = xorg_composite_accelerated(op,
                                                     pSrcPicture,
                                                     pMaskPicture,
@@ -605,7 +607,7 @@ ExaCheckComposite(int op,
    debug_printf("ExaCheckComposite(%d, %p, %p, %p) = %d\n",
                 op, pSrcPicture, pMaskPicture, pDstPicture, accelerated);
 #endif
-   return ACCEL_ENABLED && accelerated;
+   return exa->accel && accelerated;
 }
 
 static void *
@@ -743,10 +745,11 @@ ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
 			     bitsPerPixel, devKind, NULL);
 
     /* Deal with screen resize */
-    if (!priv->tex ||
-        (priv->tex->width[0] != width ||
-         priv->tex->height[0] != height ||
-         priv->tex_flags != priv->flags)) {
+    if ((exa->accel || priv->flags) &&
+        (!priv->tex ||
+         (priv->tex->width[0] != width ||
+          priv->tex->height[0] != height ||
+          priv->tex_flags != priv->flags))) {
 	struct pipe_texture *texture = NULL;
 	struct pipe_texture template;
 
@@ -861,7 +864,7 @@ xorg_exa_close(ScrnInfoPtr pScrn)
 }
 
 void *
-xorg_exa_init(ScrnInfoPtr pScrn)
+xorg_exa_init(ScrnInfoPtr pScrn, Bool accel)
 {
    modesettingPtr ms = modesettingPTR(pScrn);
    struct exa_context *exa;
@@ -926,6 +929,7 @@ xorg_exa_init(ScrnInfoPtr pScrn)
    ms->ctx = exa->pipe;
 
    exa->renderer = renderer_create(exa->pipe);
+   exa->accel = accel;
 
    return (void *)exa;
 
diff --git a/src/gallium/state_trackers/xorg/xorg_exa.h b/src/gallium/state_trackers/xorg/xorg_exa.h
index 7f4aebb9c38..15cc29d6620 100644
--- a/src/gallium/state_trackers/xorg/xorg_exa.h
+++ b/src/gallium/state_trackers/xorg/xorg_exa.h
@@ -24,6 +24,8 @@ struct exa_context
    float solid_color[4];
    boolean has_solid_color;
 
+   boolean accel;
+
    /* float[9] projective matrix bound to pictures */
    struct {
       float    src[9];
diff --git a/src/gallium/state_trackers/xorg/xorg_tracker.h b/src/gallium/state_trackers/xorg/xorg_tracker.h
index 6130cf6621f..20c9259c7bc 100644
--- a/src/gallium/state_trackers/xorg/xorg_tracker.h
+++ b/src/gallium/state_trackers/xorg/xorg_tracker.h
@@ -131,7 +131,7 @@ xorg_exa_create_root_texture(ScrnInfoPtr pScrn,
 			     int depth, int bpp);
 
 void *
-xorg_exa_init(ScrnInfoPtr pScrn);
+xorg_exa_init(ScrnInfoPtr pScrn, Bool accel);
 
 void
 xorg_exa_close(ScrnInfoPtr pScrn);