Merge remote branch 'origin/master' into pipe-video

Conflicts:
	configure.ac
	src/gallium/auxiliary/Makefile
	src/gallium/auxiliary/SConscript
	src/gallium/drivers/r600/r600_asm.c
	src/gallium/drivers/r600/r600_asm.h
	src/gallium/drivers/r600/r600_shader.c
	src/gallium/drivers/r600/r600_state_inlines.h
	src/gallium/drivers/r600/r600_texture.c

1 files changed, 18 insertions, 1 deletions

diff --git a/src/gallium/auxiliary/util/u_inlines.h b/src/gallium/auxiliary/util/u_inlines.h
index b4870bce981..98889fb70ac 100644
--- a/src/gallium/auxiliary/util/u_inlines.h
+++ b/src/gallium/auxiliary/util/u_inlines.h
@@ -160,6 +160,21 @@ pipe_surface_init(struct pipe_context *ctx, struct pipe_surface* ps,
    pipe_surface_reset(ctx, ps, pt, level, layer, flags);
 }
 
+/* Return true if the surfaces are equal. */
+static INLINE boolean
+pipe_surface_equal(struct pipe_surface *s1, struct pipe_surface *s2)
+{
+   return s1->texture == s2->texture &&
+          s1->format == s2->format &&
+          (s1->texture->target != PIPE_BUFFER ||
+           (s1->u.buf.first_element == s2->u.buf.first_element &&
+            s1->u.buf.last_element == s2->u.buf.last_element)) &&
+          (s1->texture->target == PIPE_BUFFER ||
+           (s1->u.tex.level == s2->u.tex.level &&
+            s1->u.tex.first_layer == s2->u.tex.first_layer &&
+            s1->u.tex.last_layer == s2->u.tex.last_layer));
+}
+
 /*
  * Convenience wrappers for screen buffer functions.
  */
@@ -167,6 +182,7 @@ pipe_surface_init(struct pipe_context *ctx, struct pipe_surface* ps,
 static INLINE struct pipe_resource *
 pipe_buffer_create( struct pipe_screen *screen,
 		    unsigned bind,
+		    unsigned usage,
 		    unsigned size )
 {
    struct pipe_resource buffer;
@@ -174,7 +190,7 @@ pipe_buffer_create( struct pipe_screen *screen,
    buffer.target = PIPE_BUFFER;
    buffer.format = PIPE_FORMAT_R8_UNORM; /* want TYPELESS or similar */
    buffer.bind = bind;
-   buffer.usage = PIPE_USAGE_DEFAULT;
+   buffer.usage = usage;
    buffer.flags = 0;
    buffer.width0 = size;
    buffer.height0 = 1;
@@ -220,6 +236,7 @@ pipe_buffer_map_range(struct pipe_context *pipe,
    map = pipe->transfer_map( pipe, *transfer );
    if (map == NULL) {
       pipe->transfer_destroy( pipe, *transfer );
+      *transfer = NULL;
       return NULL;
    }