Merge branch 'mesa_7_6_branch'

5 files changed, 37 insertions, 11 deletions

diff --git a/src/mesa/drivers/dri/i915/intel_tris.c b/src/mesa/drivers/dri/i915/intel_tris.c
index 0641e6df9d7..c3cbba8404d 100644
--- a/src/mesa/drivers/dri/i915/intel_tris.c
+++ b/src/mesa/drivers/dri/i915/intel_tris.c
@@ -1196,12 +1196,16 @@ getFallbackString(GLuint bit)
 
 
 
+/**
+ * Enable/disable a fallback flag.
+ * \param bit  one of INTEL_FALLBACK_x flags.
+ */
 void
-intelFallback(struct intel_context *intel, GLuint bit, GLboolean mode)
+intelFallback(struct intel_context *intel, GLbitfield bit, GLboolean mode)
 {
    GLcontext *ctx = &intel->ctx;
    TNLcontext *tnl = TNL_CONTEXT(ctx);
-   GLuint oldfallback = intel->Fallback;
+   const GLbitfield oldfallback = intel->Fallback;
 
    if (mode) {
       intel->Fallback |= bit;
diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index fa3e32c7ff1..01b6a4a168c 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -115,7 +115,9 @@
  * Handles blending and (presumably) depth and stencil testing.
  */
 
-#define BRW_FALLBACK_TEXTURE		 0x1
+
+#define BRW_FALLBACK_DRAW  (INTEL_FALLBACK_DRIVER << 0)
+
 #define BRW_MAX_CURBE                    (32*16)
 
 struct brw_context;
@@ -454,7 +456,6 @@ struct brw_context
    GLuint primitive;
 
    GLboolean emit_state_always;
-   GLboolean tmp_fallback;
    GLboolean no_batch_wrap;
 
    struct {
diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c
index a3ff6c58d89..375afadcbea 100644
--- a/src/mesa/drivers/dri/i965/brw_draw_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c
@@ -375,9 +375,10 @@ static void brw_prepare_vertices(struct brw_context *brw)
     * isn't an issue at this point.
     */
    if (brw->vb.nr_enabled >= BRW_VEP_MAX) {
-      intel->Fallback = 1;
+      FALLBACK(intel, BRW_FALLBACK_DRAW, GL_TRUE);
       return;
    }
+   FALLBACK(intel, BRW_FALLBACK_DRAW, GL_FALSE);
 
    for (i = 0; i < brw->vb.nr_enabled; i++) {
       struct brw_vertex_element *input = brw->vb.enabled[i];
@@ -427,9 +428,10 @@ static void brw_prepare_vertices(struct brw_context *brw)
 	    /* Position array not properly enabled:
 	     */
             if (input->glarray->StrideB == 0) {
-               intel->Fallback = 1;
+               FALLBACK(intel, BRW_FALLBACK_DRAW, GL_TRUE);
                return;
             }
+            FALLBACK(intel, BRW_FALLBACK_DRAW, GL_FALSE);
 
 	    interleave = input->glarray->StrideB;
 	    ptr = input->glarray->Ptr;
diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index 934f7aa1873..15f4bc6f69d 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -830,7 +830,7 @@ intelDestroyContext(__DRIcontextPrivate * driContextPriv)
       _vbo_DestroyContext(&intel->ctx);
 
       _swrast_DestroyContext(&intel->ctx);
-      intel->Fallback = 0;      /* don't call _swrast_Flush later */
+      intel->Fallback = 0x0;      /* don't call _swrast_Flush later */
 
       intel_batchbuffer_free(intel->batch);
       intel->batch = NULL;
@@ -935,10 +935,23 @@ intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
                  __DRIdrawablePrivate * driReadPriv)
 {
    __DRIscreenPrivate *psp = driDrawPriv->driScreenPriv;
+   struct intel_context *intel;
+   GET_CURRENT_CONTEXT(curCtx);
+
+   if (driContextPriv)
+      intel = (struct intel_context *) driContextPriv->driverPrivate;
+   else
+      intel = NULL;
+
+   /* According to the glXMakeCurrent() man page: "Pending commands to
+    * the previous context, if any, are flushed before it is released."
+    * But only flush if we're actually changing contexts.
+    */
+   if (intel_context(curCtx) && intel_context(curCtx) != intel) {
+      _mesa_flush(curCtx);
+   }
 
    if (driContextPriv) {
-      struct intel_context *intel =
-         (struct intel_context *) driContextPriv->driverPrivate;
       struct intel_framebuffer *intel_fb =
 	 (struct intel_framebuffer *) driDrawPriv->driverPrivate;
       GLframebuffer *readFb = (GLframebuffer *) driReadPriv->driverPrivate;
diff --git a/src/mesa/drivers/dri/intel/intel_context.h b/src/mesa/drivers/dri/intel/intel_context.h
index b104096912c..2778cc0136d 100644
--- a/src/mesa/drivers/dri/intel/intel_context.h
+++ b/src/mesa/drivers/dri/intel/intel_context.h
@@ -61,6 +61,10 @@ typedef void (*intel_line_func) (struct intel_context *, intelVertex *,
                                  intelVertex *);
 typedef void (*intel_point_func) (struct intel_context *, intelVertex *);
 
+/**
+ * Bits for intel->Fallback field
+ */
+/*@{*/
 #define INTEL_FALLBACK_DRAW_BUFFER	 0x1
 #define INTEL_FALLBACK_READ_BUFFER	 0x2
 #define INTEL_FALLBACK_DEPTH_BUFFER      0x4
@@ -68,8 +72,10 @@ typedef void (*intel_point_func) (struct intel_context *, intelVertex *);
 #define INTEL_FALLBACK_USER		 0x10
 #define INTEL_FALLBACK_RENDERMODE	 0x20
 #define INTEL_FALLBACK_TEXTURE   	 0x40
+#define INTEL_FALLBACK_DRIVER            0x1000  /**< first for drivers */
+/*@}*/
 
-extern void intelFallback(struct intel_context *intel, GLuint bit,
+extern void intelFallback(struct intel_context *intel, GLbitfield bit,
                           GLboolean mode);
 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
 
@@ -171,7 +177,7 @@ struct intel_context
    struct dri_metaops meta;
 
    GLint refcount;
-   GLuint Fallback;
+   GLbitfield Fallback;  /**< mask of INTEL_FALLBACK_x bits */
    GLuint NewGLState;
 
    dri_bufmgr *bufmgr;