intel: Prevent an "irq is not working" printf when only pipe B is enabled.

intelMakeCurrent is called before intelWindowMoved (in fact, it calls
it), so calculation of the correct vblank crtc has not happened yet.
Fix this by making a function that fixes up a set of vblank flags and
call if from both functions.

1 files changed, 26 insertions, 8 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_buffers.c b/src/mesa/drivers/dri/intel/intel_buffers.c
index 7465ba7c69..08e10c9e0e 100644
--- a/src/mesa/drivers/dri/intel/intel_buffers.c
+++ b/src/mesa/drivers/dri/intel/intel_buffers.c
@@ -143,16 +143,13 @@ intel_get_cliprects(struct intel_context *intel,
    }
 }
 
-/**
- * This will be called whenever the currently bound window is moved/resized.
- * XXX: actually, it seems to NOT be called when the window is only moved (BP).
+/*
+ * Correct a drawablePrivate's set of vblank flags WRT the current context.
+ * When considering multiple crtcs.
  */
-void
-intelWindowMoved(struct intel_context *intel)
+GLuint
+intelFixupVblank(struct intel_context *intel, __DRIdrawablePrivate *dPriv)
 {
-   GLcontext *ctx = &intel->ctx;
-   __DRIdrawablePrivate *dPriv = intel->driDrawable;
-   struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
 
    if (!intel->intelScreen->driScrnPriv->dri2.enabled &&
        intel->intelScreen->driScrnPriv->ddx_version.minor >= 7) {
@@ -177,6 +174,27 @@ intelWindowMoved(struct intel_context *intel)
 	 flags = dPriv->vblFlags & ~VBLANK_FLAG_SECONDARY;
       }
 
+      return flags;
+   } else {
+	return dPriv->vblFlags & ~VBLANK_FLAG_SECONDARY;
+   }
+}
+
+/**
+ * This will be called whenever the currently bound window is moved/resized.
+ * XXX: actually, it seems to NOT be called when the window is only moved (BP).
+ */
+void
+intelWindowMoved(struct intel_context *intel)
+{
+   GLcontext *ctx = &intel->ctx;
+   __DRIdrawablePrivate *dPriv = intel->driDrawable;
+   struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
+
+   if (!intel->intelScreen->driScrnPriv->dri2.enabled &&
+       intel->intelScreen->driScrnPriv->ddx_version.minor >= 7) {
+      GLuint flags = intelFixupVblank(intel, dPriv);
+
       /* Check to see if we changed pipes */
       if (flags != dPriv->vblFlags && dPriv->vblFlags &&
 	  !(dPriv->vblFlags & VBLANK_FLAG_NO_IRQ)) {