xwininfo fontconfig libX11 libXau libXdmcp libXext mesa libXinerama libxcb libxcb/xcb-proto libfontenc pixman xkbcomp mkfontscale xkeyboard-config git update 4 Jun 2013

xserver          commit c21344add2fc589df83b29be5831c36a372201bd
libxcb           commit 9ae84ad187e2ba440c40f44b8eb21c82c2fdbf12
libxcb/xcb-proto commit bdfedfa57a13ff805580cfacafc70f9cc55df363
xkeyboard-config commit dad9ade4e83d1ef5a517fcc4cc9ad3a79b47acce
libX11           commit 8496122eb00ce6cd5d2308ee54f64b68c378e455
libXdmcp         commit 0b443c1b769b9c9a3b45b4252afe07e18b709ff4
libXext          commit d8366afbb0d2e4fbb1e419b1187f490522270bea
libfontenc       commit 3acba630d8b57084f7e92c15732408711ed5137a
libXinerama      commit 6e1d1dc328ba8162bba2f4694e7f3c706a1491ff
libXau           commit 899790011304c4029e15abf410e49ce7cec17e0a
xkbcomp          commit ed582f4fccd4e23abcfba8b3b03649fea6414f44
pixman           commit 2acfac5f8e097ee2ae225d986f981b55d65dd152
mkfontscale      commit 19e2cb7c6a3ec2c5b1bc0d24866fa685eef0ee13
xwininfo         commit ba0d1b0da21d2dbdd81098ed5778f3792b472e13
fontconfig       commit cd9b1033a68816a7acfbba1718ba0aa5888f6ec7
mesa             commit 7bafd88c153e395274b632e7eae4bc9fc3aec1d2

1 files changed, 121 insertions, 7 deletions

diff --git a/mesalib/src/mesa/vbo/vbo_exec.c b/mesalib/src/mesa/vbo/vbo_exec.c
index 5827f90c3..c56a14212 100644
--- a/mesalib/src/mesa/vbo/vbo_exec.c
+++ b/mesalib/src/mesa/vbo/vbo_exec.c
@@ -17,9 +17,10 @@
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
  *
  * Authors:
  *    Keith Whitwell <keith@tungstengraphics.com>
@@ -47,7 +48,6 @@ void vbo_exec_init( struct gl_context *ctx )
       return;
 
    vbo_exec_vtx_init( exec );
-   vbo_exec_array_init( exec );
 
    ctx->Driver.NeedFlush = 0;
    ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;
@@ -68,7 +68,6 @@ void vbo_exec_destroy( struct gl_context *ctx )
    }
 
    vbo_exec_vtx_destroy( exec );
-   vbo_exec_array_destroy( exec );
 }
 
 
@@ -79,10 +78,26 @@ void vbo_exec_destroy( struct gl_context *ctx )
  */ 
 void vbo_exec_invalidate_state( struct gl_context *ctx, GLuint new_state )
 {
-   struct vbo_exec_context *exec = &vbo_context(ctx)->exec;
+   struct vbo_context *vbo = vbo_context(ctx);
+   struct vbo_exec_context *exec = &vbo->exec;
 
-   if (new_state & (_NEW_PROGRAM|_NEW_ARRAY)) {
+   if (!exec->validating && new_state & (_NEW_PROGRAM|_NEW_ARRAY)) {
       exec->array.recalculate_inputs = GL_TRUE;
+
+      /* If we ended up here because a VAO was deleted, the _DrawArrays
+       * pointer which pointed to the VAO might be invalid now, so set it
+       * to NULL.  This prevents crashes in driver functions like Clear
+       * where driver state validation might occur, but the vbo module is
+       * still in an invalid state.
+       *
+       * Drivers should skip vertex array state validation if _DrawArrays
+       * is NULL.  It also has no effect on performance, because attrib
+       * bindings will be recalculated anyway.
+       */
+      if (vbo->last_draw_method == DRAW_ARRAYS) {
+         ctx->Array._DrawArrays = NULL;
+         vbo->last_draw_method = DRAW_NONE;
+      }
    }
 
    if (new_state & _NEW_EVAL)
@@ -142,3 +157,102 @@ vbo_count_tessellated_primitives(GLenum mode, GLuint count,
    }
    return num_primitives * num_instances;
 }
+
+
+
+/**
+ * In some degenarate cases we can improve our ability to merge
+ * consecutive primitives.  For example:
+ * glBegin(GL_LINE_STRIP);
+ * glVertex(1);
+ * glVertex(1);
+ * glEnd();
+ * glBegin(GL_LINE_STRIP);
+ * glVertex(1);
+ * glVertex(1);
+ * glEnd();
+ * Can be merged as a GL_LINES prim with four vertices.
+ *
+ * This function converts 2-vertex line strips/loops into GL_LINES, etc.
+ */
+void
+vbo_try_prim_conversion(struct _mesa_prim *p)
+{
+   if (p->mode == GL_LINE_STRIP && p->count == 2) {
+      /* convert 2-vertex line strip to a separate line */
+      p->mode = GL_LINES;
+   }
+   else if ((p->mode == GL_TRIANGLE_STRIP || p->mode == GL_TRIANGLE_FAN)
+       && p->count == 3) {
+      /* convert 3-vertex tri strip or fan to a separate triangle */
+      p->mode = GL_TRIANGLES;
+   }
+
+   /* Note: we can't convert a 4-vertex quad strip to a separate quad
+    * because the vertex ordering is different.  We'd have to muck
+    * around in the vertex data to make it work.
+    */
+}
+
+
+/**
+ * Helper function for determining if two subsequent glBegin/glEnd
+ * primitives can be combined.  This is only possible for GL_POINTS,
+ * GL_LINES, GL_TRIANGLES and GL_QUADS.
+ * If we return true, it means that we can concatenate p1 onto p0 (and
+ * discard p1).
+ */
+bool
+vbo_can_merge_prims(const struct _mesa_prim *p0, const struct _mesa_prim *p1)
+{
+   if (!p0->begin ||
+       !p1->begin ||
+       !p0->end ||
+       !p1->end)
+      return false;
+
+   /* The prim mode must match (ex: both GL_TRIANGLES) */
+   if (p0->mode != p1->mode)
+      return false;
+
+   /* p1's vertices must come right after p0 */
+   if (p0->start + p0->count != p1->start)
+      return false;
+
+   if (p0->basevertex != p1->basevertex ||
+       p0->num_instances != p1->num_instances ||
+       p0->base_instance != p1->base_instance)
+      return false;
+
+   /* can always merge subsequent GL_POINTS primitives */
+   if (p0->mode == GL_POINTS)
+      return true;
+
+   /* independent lines with no extra vertices */
+   if (p0->mode == GL_LINES && p0->count % 2 == 0 && p1->count % 2 == 0)
+      return true;
+
+   /* independent tris */
+   if (p0->mode == GL_TRIANGLES && p0->count % 3 == 0 && p1->count % 3 == 0)
+      return true;
+
+   /* independent quads */
+   if (p0->mode == GL_QUADS && p0->count % 4 == 0 && p1->count % 4 == 0)
+      return true;
+
+   return false;
+}
+
+
+/**
+ * If we've determined that p0 and p1 can be merged, this function
+ * concatenates p1 onto p0.
+ */
+void
+vbo_merge_prims(struct _mesa_prim *p0, const struct _mesa_prim *p1)
+{
+   assert(vbo_can_merge_prims(p0, p1));
+
+   p0->count += p1->count;
+   p0->end = p1->end;
+}