libXft pixman mesa git update 17 dec 2012

libXft: 835cd2a6cb4aa8f89e6e7dead66483643a6e7ee8
pixman: 526dc06e5694172abf979c03a5cf530207fe2d27
mesa: 1358f3a905448f6fb546aba951e317f743a83c76

13 files changed, 363 insertions, 218 deletions

diff --git a/mesalib/src/gallium/auxiliary/util/u_blit.c b/mesalib/src/gallium/auxiliary/util/u_blit.c
index ab1549e2d..9fe15b810 100644
--- a/mesalib/src/gallium/auxiliary/util/u_blit.c
+++ b/mesalib/src/gallium/auxiliary/util/u_blit.c
@@ -666,6 +666,7 @@ util_blit_pixels(struct blit_state *ctx,
    cso_save_geometry_shader(ctx->cso);
    cso_save_vertex_elements(ctx->cso);
    cso_save_aux_vertex_buffer_slot(ctx->cso);
+   cso_save_render_condition(ctx->cso);
 
    /* set misc state we care about */
    if (writemask)
@@ -677,6 +678,7 @@ util_blit_pixels(struct blit_state *ctx,
    cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
    cso_set_vertex_elements(ctx->cso, 2, ctx->velem);
    cso_set_stream_outputs(ctx->cso, 0, NULL, 0);
+   cso_set_render_condition(ctx->cso, NULL, 0);
 
    /* default sampler state */
    ctx->sampler.normalized_coords = normalized;
@@ -799,6 +801,7 @@ util_blit_pixels(struct blit_state *ctx,
    cso_restore_vertex_elements(ctx->cso);
    cso_restore_aux_vertex_buffer_slot(ctx->cso);
    cso_restore_stream_outputs(ctx->cso);
+   cso_restore_render_condition(ctx->cso);
 
    pipe_sampler_view_reference(&sampler_view, NULL);
    if (dst_surface != dst)
diff --git a/mesalib/src/gallium/auxiliary/util/u_blitter.c b/mesalib/src/gallium/auxiliary/util/u_blitter.c
index e788b6594..7c7e06219 100644
--- a/mesalib/src/gallium/auxiliary/util/u_blitter.c
+++ b/mesalib/src/gallium/auxiliary/util/u_blitter.c
@@ -1053,29 +1053,6 @@ void util_blitter_custom_clear_depth(struct blitter_context *blitter,
                               0, PIPE_FORMAT_NONE, &color, depth, 0, NULL, custom_dsa);
 }
 
-static
-boolean is_overlap(int dstx, int dsty, int dstz,
-		   const struct pipe_box *srcbox)
-{
-   struct pipe_box src = *srcbox;
-
-   if (src.width < 0) {
-      src.x += src.width;
-      src.width = -src.width;
-   }
-   if (src.height < 0) {
-      src.y += src.height;
-      src.height = -src.height;
-   }
-   if (src.depth < 0) {
-      src.z += src.depth;
-      src.depth = -src.depth;
-   }
-   return src.x < dstx+src.width && src.x+src.width > dstx &&
-          src.y < dsty+src.height && src.y+src.height > dsty &&
-          src.z < dstz+src.depth && src.z+src.depth > dstz;
-}
-
 void util_blitter_default_dst_texture(struct pipe_surface *dst_templ,
                                       struct pipe_resource *dst,
                                       unsigned dstlevel,
@@ -1083,12 +1060,6 @@ void util_blitter_default_dst_texture(struct pipe_surface *dst_templ,
                                       const struct pipe_box *srcbox)
 {
     memset(dst_templ, 0, sizeof(*dst_templ));
-    dst_templ->format = dst->format;
-    if (util_format_is_depth_or_stencil(dst->format)) {
-	dst_templ->usage = PIPE_BIND_DEPTH_STENCIL;
-    } else {
-	dst_templ->usage = PIPE_BIND_RENDER_TARGET;
-    }
     dst_templ->format = util_format_linear(dst->format);
     dst_templ->u.tex.level = dstlevel;
     dst_templ->u.tex.first_layer = dstz;
@@ -1267,11 +1238,6 @@ void util_blitter_blit_generic(struct blitter_context *blitter,
       return;
    }
 
-   /* Sanity checks. */
-   if (dst->texture == src->texture &&
-       dst->u.tex.level == src->u.tex.first_level) {
-      assert(!is_overlap(dstx, dsty, 0, srcbox));
-   }
    /* XXX should handle 3d regions */
    assert(srcbox->depth == 1);
 
@@ -1743,7 +1709,6 @@ void util_blitter_custom_resolve_color(struct blitter_context *blitter,
    surf_tmpl.u.tex.level = dst_level;
    surf_tmpl.u.tex.first_layer = dst_layer;
    surf_tmpl.u.tex.last_layer = dst_layer;
-   surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
 
    dstsurf = pipe->create_surface(pipe, dst, &surf_tmpl);
 
@@ -1822,149 +1787,3 @@ void util_blitter_custom_color(struct blitter_context *blitter,
    blitter_restore_render_cond(ctx);
    blitter_unset_running_flag(ctx);
 }
-
-/* Return whether this is an RGBA, Z, S, or combined ZS format.
- */
-static unsigned get_format_mask(enum pipe_format format)
-{
-   const struct util_format_description *desc = util_format_description(format);
-
-   assert(desc);
-
-   if (util_format_has_depth(desc)) {
-      if (util_format_has_stencil(desc)) {
-         return PIPE_MASK_ZS;
-      } else {
-         return PIPE_MASK_Z;
-      }
-   } else {
-      if (util_format_has_stencil(desc)) {
-         return PIPE_MASK_S;
-      } else {
-         return PIPE_MASK_RGBA;
-      }
-   }
-}
-
-/* Return if the box is totally inside the resource.
- */
-static boolean is_box_inside_resource(const struct pipe_resource *res,
-                                      const struct pipe_box *box,
-                                      unsigned level)
-{
-   unsigned width = 1, height = 1, depth = 1;
-
-   switch (res->target) {
-   case PIPE_BUFFER:
-      width = res->width0;
-      height = 1;
-      depth = 1;
-      break;
-   case PIPE_TEXTURE_1D:
-      width = u_minify(res->width0, level);
-      height = 1;
-      depth = 1;
-      break;
-   case PIPE_TEXTURE_2D:
-   case PIPE_TEXTURE_RECT:
-      width = u_minify(res->width0, level);
-      height = u_minify(res->height0, level);
-      depth = 1;
-      break;
-   case PIPE_TEXTURE_3D:
-      width = u_minify(res->width0, level);
-      height = u_minify(res->height0, level);
-      depth = u_minify(res->depth0, level);
-      break;
-   case PIPE_TEXTURE_CUBE:
-      width = u_minify(res->width0, level);
-      height = u_minify(res->height0, level);
-      depth = 6;
-      break;
-   case PIPE_TEXTURE_1D_ARRAY:
-      width = u_minify(res->width0, level);
-      height = 1;
-      depth = res->array_size;
-      break;
-   case PIPE_TEXTURE_2D_ARRAY:
-      width = u_minify(res->width0, level);
-      height = u_minify(res->height0, level);
-      depth = res->array_size;
-      break;
-   case PIPE_TEXTURE_CUBE_ARRAY:
-      width = u_minify(res->width0, level);
-      height = u_minify(res->height0, level);
-      depth = res->array_size;
-      assert(res->array_size % 6 == 0);
-      break;
-   case PIPE_MAX_TEXTURE_TYPES:;
-   }
-
-   return box->x >= 0 &&
-          box->x + box->width <= (int) width &&
-          box->y >= 0 &&
-          box->y + box->height <= (int) height &&
-          box->z >= 0 &&
-          box->z + box->depth <= (int) depth;
-}
-
-static unsigned get_sample_count(const struct pipe_resource *res)
-{
-   return res->nr_samples ? res->nr_samples : 1;
-}
-
-boolean util_try_blit_via_copy_region(struct pipe_context *ctx,
-                                      const struct pipe_blit_info *blit)
-{
-   unsigned mask = get_format_mask(blit->dst.format);
-
-   /* No format conversions. */
-   if (blit->src.resource->format != blit->src.format ||
-       blit->dst.resource->format != blit->dst.format ||
-       !util_is_format_compatible(
-          util_format_description(blit->src.resource->format),
-          util_format_description(blit->dst.resource->format))) {
-      return FALSE;
-   }
-
-   /* No masks, no filtering, no scissor. */
-   if ((blit->mask & mask) != mask ||
-       blit->filter != PIPE_TEX_FILTER_NEAREST ||
-       blit->scissor_enable) {
-      return FALSE;
-   }
-
-   /* No flipping. */
-   if (blit->src.box.width < 0 ||
-       blit->src.box.height < 0 ||
-       blit->src.box.depth < 0) {
-      return FALSE;
-   }
-
-   /* No scaling. */
-   if (blit->src.box.width != blit->dst.box.width ||
-       blit->src.box.height != blit->dst.box.height ||
-       blit->src.box.depth != blit->dst.box.depth) {
-      return FALSE;
-   }
-
-   /* No out-of-bounds access. */
-   if (!is_box_inside_resource(blit->src.resource, &blit->src.box,
-                               blit->src.level) ||
-       !is_box_inside_resource(blit->dst.resource, &blit->dst.box,
-                               blit->dst.level)) {
-      return FALSE;
-   }
-
-   /* Sample counts must match. */
-   if (get_sample_count(blit->src.resource) !=
-       get_sample_count(blit->dst.resource)) {
-      return FALSE;
-   }
-
-   ctx->resource_copy_region(ctx, blit->dst.resource, blit->dst.level,
-                             blit->dst.box.x, blit->dst.box.y, blit->dst.box.z,
-                             blit->src.resource, blit->src.level,
-                             &blit->src.box);
-   return TRUE;
-}
diff --git a/mesalib/src/gallium/auxiliary/util/u_blitter.h b/mesalib/src/gallium/auxiliary/util/u_blitter.h
index 99175409b..0b5e4aa45 100644
--- a/mesalib/src/gallium/auxiliary/util/u_blitter.h
+++ b/mesalib/src/gallium/auxiliary/util/u_blitter.h
@@ -152,17 +152,6 @@ void util_blitter_draw_rectangle(struct blitter_context *blitter,
                                  enum blitter_attrib_type type,
                                  const union pipe_color_union *attrib);
 
-/**
- * Try to do a blit using resource_copy_region. The function calls
- * resource_copy_region if the blit description is compatible with it.
- *
- * It returns TRUE if the blit was done using resource_copy_region.
- *
- * It returns FALSE otherwise and the caller must fall back to a more generic
- * codepath for the blit operation. (e.g. by using u_blitter)
- */
-boolean util_try_blit_via_copy_region(struct pipe_context *ctx,
-                                      const struct pipe_blit_info *blit);
 
 /*
  * These states must be saved before any of the following functions are called:
diff --git a/mesalib/src/gallium/auxiliary/util/u_debug.c b/mesalib/src/gallium/auxiliary/util/u_debug.c
index ee97b7adb..ce472b020 100644
--- a/mesalib/src/gallium/auxiliary/util/u_debug.c
+++ b/mesalib/src/gallium/auxiliary/util/u_debug.c
@@ -537,8 +537,7 @@ void debug_dump_texture(struct pipe_context *pipe,
       return;
 
    /* XXX for now, just dump image for layer=0, level=0 */
-   memset(&surf_tmpl, 0, sizeof(surf_tmpl));
-   u_surface_default_template(&surf_tmpl, texture, 0 /* no bind flag - not a surface */);
+   u_surface_default_template(&surf_tmpl, texture);
    surface = pipe->create_surface(pipe, texture, &surf_tmpl);
    if (surface) {
       debug_dump_surface(pipe, prefix, surface);
diff --git a/mesalib/src/gallium/auxiliary/util/u_dump_state.c b/mesalib/src/gallium/auxiliary/util/u_dump_state.c
index f5d8b4373..09faffe73 100644
--- a/mesalib/src/gallium/auxiliary/util/u_dump_state.c
+++ b/mesalib/src/gallium/auxiliary/util/u_dump_state.c
@@ -661,8 +661,6 @@ util_dump_surface(FILE *stream, const struct pipe_surface *state)
    util_dump_member(stream, uint, state, width);
    util_dump_member(stream, uint, state, height);
 
-   util_dump_member(stream, uint, state, usage);
-
    util_dump_member(stream, ptr, state, texture);
    util_dump_member(stream, uint, state, u.tex.level);
    util_dump_member(stream, uint, state, u.tex.first_layer);
diff --git a/mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c b/mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c
index 48ebdb9fa..e1f18f39c 100644
--- a/mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c
+++ b/mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c
@@ -1566,6 +1566,7 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
    cso_save_viewport(ctx->cso);
    cso_save_vertex_elements(ctx->cso);
    cso_save_aux_vertex_buffer_slot(ctx->cso);
+   cso_save_render_condition(ctx->cso);
 
    /* bind our state */
    cso_set_blend(ctx->cso, is_depth ? &ctx->blend_keep_color :
@@ -1576,6 +1577,7 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
    cso_set_sample_mask(ctx->cso, ~0);
    cso_set_vertex_elements(ctx->cso, 2, ctx->velem);
    cso_set_stream_outputs(ctx->cso, 0, NULL, 0);
+   cso_set_render_condition(ctx->cso, NULL, 0);
 
    set_fragment_shader(ctx, type, is_depth);
    set_vertex_shader(ctx);
@@ -1615,10 +1617,7 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
 	 } else
             layer = face;
 
-         memset(&surf_templ, 0, sizeof(surf_templ));
-         u_surface_default_template(&surf_templ, pt,
-                                    is_depth ? PIPE_BIND_DEPTH_STENCIL :
-                                               PIPE_BIND_RENDER_TARGET);
+         u_surface_default_template(&surf_templ, pt);
          surf_templ.u.tex.level = dstLevel;
          surf_templ.u.tex.first_layer = layer;
          surf_templ.u.tex.last_layer = layer;
@@ -1699,4 +1698,5 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
    cso_restore_vertex_elements(ctx->cso);
    cso_restore_stream_outputs(ctx->cso);
    cso_restore_aux_vertex_buffer_slot(ctx->cso);
+   cso_restore_render_condition(ctx->cso);
 }
diff --git a/mesalib/src/gallium/auxiliary/util/u_inlines.h b/mesalib/src/gallium/auxiliary/util/u_inlines.h
index 469f95461..582aacdca 100644
--- a/mesalib/src/gallium/auxiliary/util/u_inlines.h
+++ b/mesalib/src/gallium/auxiliary/util/u_inlines.h
@@ -188,14 +188,12 @@ pipe_so_target_reference(struct pipe_stream_output_target **ptr,
 
 static INLINE void
 pipe_surface_reset(struct pipe_context *ctx, struct pipe_surface* ps,
-                   struct pipe_resource *pt, unsigned level, unsigned layer,
-                   unsigned flags)
+                   struct pipe_resource *pt, unsigned level, unsigned layer)
 {
    pipe_resource_reference(&ps->texture, pt);
    ps->format = pt->format;
    ps->width = u_minify(pt->width0, level);
    ps->height = u_minify(pt->height0, level);
-   ps->usage = flags;
    ps->u.tex.level = level;
    ps->u.tex.first_layer = ps->u.tex.last_layer = layer;
    ps->context = ctx;
@@ -203,12 +201,11 @@ pipe_surface_reset(struct pipe_context *ctx, struct pipe_surface* ps,
 
 static INLINE void
 pipe_surface_init(struct pipe_context *ctx, struct pipe_surface* ps,
-                  struct pipe_resource *pt, unsigned level, unsigned layer,
-                  unsigned flags)
+                  struct pipe_resource *pt, unsigned level, unsigned layer)
 {
    ps->texture = 0;
    pipe_reference_init(&ps->reference, 1);
-   pipe_surface_reset(ctx, ps, pt, level, layer, flags);
+   pipe_surface_reset(ctx, ps, pt, level, layer);
 }
 
 /* Return true if the surfaces are equal. */
diff --git a/mesalib/src/gallium/auxiliary/util/u_suballoc.c b/mesalib/src/gallium/auxiliary/util/u_suballoc.c
new file mode 100644
index 000000000..efa9a0c5e
--- /dev/null
+++ b/mesalib/src/gallium/auxiliary/util/u_suballoc.c
@@ -0,0 +1,132 @@
+/**************************************************************************
+ * 
+ * Copyright 2009 VMware, Inc.
+ * Copyright 2012 Marek Olšák <maraeo@gmail.com>
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS 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.
+ * 
+ **************************************************************************/
+
+/* A simple allocator that suballocates memory from a large buffer. */
+
+#include "pipe/p_defines.h"
+#include "util/u_inlines.h"
+#include "pipe/p_context.h"
+#include "util/u_memory.h"
+#include "util/u_math.h"
+
+#include "u_suballoc.h"
+
+
+struct u_suballocator {
+   struct pipe_context *pipe;
+
+   unsigned size;          /* Size of the whole buffer, in bytes. */
+   unsigned alignment;     /* Alignment of each sub-allocation. */
+   unsigned bind;          /* Bitmask of PIPE_BIND_* flags. */
+   unsigned usage;         /* One of PIPE_USAGE_* flags. */
+   boolean zero_buffer_memory; /* If the buffer contents should be zeroed. */
+
+   struct pipe_resource *buffer;   /* The buffer we suballocate from. */
+   unsigned offset; /* Aligned offset pointing at the first unused byte. */
+};
+
+
+/**
+ * Create a suballocator.
+ *
+ * \p zero_buffer_memory determines whether the buffer contents should be
+ * cleared to 0 after the allocation.
+ */
+struct u_suballocator *
+u_suballocator_create(struct pipe_context *pipe, unsigned size,
+                      unsigned alignment, unsigned bind, unsigned usage,
+		      boolean zero_buffer_memory)
+{
+   struct u_suballocator *allocator = CALLOC_STRUCT(u_suballocator);
+   if (!allocator)
+      return NULL;
+
+   allocator->pipe = pipe;
+   allocator->size = align(size, alignment);
+   allocator->alignment = alignment;
+   allocator->bind = bind;
+   allocator->usage = usage;
+   allocator->zero_buffer_memory = zero_buffer_memory;
+   return allocator;
+}
+
+void
+u_suballocator_destroy(struct u_suballocator *allocator)
+{
+   pipe_resource_reference(&allocator->buffer, NULL);
+   FREE(allocator);
+}
+
+void
+u_suballocator_alloc(struct u_suballocator *allocator, unsigned size,
+                     unsigned *out_offset, struct pipe_resource **outbuf)
+{
+   unsigned alloc_size = align(size, allocator->alignment);
+
+   /* Don't allow allocations larger than the buffer size. */
+   if (alloc_size > allocator->size)
+      goto fail;
+
+   /* Make sure we have enough space in the buffer. */
+   if (!allocator->buffer ||
+       allocator->offset + alloc_size > allocator->size) {
+      /* Allocate a new buffer. */
+      pipe_resource_reference(&allocator->buffer, NULL);
+      allocator->offset = 0;
+      allocator->buffer =
+         pipe_buffer_create(allocator->pipe->screen, allocator->bind,
+                            allocator->usage, allocator->size);
+      if (!allocator->buffer)
+         goto fail;
+
+      /* Clear the memory if needed. */
+      if (allocator->zero_buffer_memory) {
+         struct pipe_transfer *transfer = NULL;
+         void *ptr;
+
+         ptr = pipe_buffer_map(allocator->pipe, allocator->buffer,
+			       PIPE_TRANSFER_WRITE, &transfer);
+         memset(ptr, 0, allocator->size);
+         pipe_buffer_unmap(allocator->pipe, transfer);
+      }
+   }
+
+   assert(allocator->offset % allocator->alignment == 0);
+   assert(allocator->offset < allocator->buffer->width0);
+   assert(allocator->offset + alloc_size <= allocator->buffer->width0);
+
+   /* Return the buffer. */
+   *out_offset = allocator->offset;
+   pipe_resource_reference(outbuf, allocator->buffer);
+
+   allocator->offset += alloc_size;
+   return;
+
+fail:
+   pipe_resource_reference(outbuf, NULL);
+}
diff --git a/mesalib/src/gallium/auxiliary/util/u_suballoc.h b/mesalib/src/gallium/auxiliary/util/u_suballoc.h
new file mode 100644
index 000000000..1f5550ffa
--- /dev/null
+++ b/mesalib/src/gallium/auxiliary/util/u_suballoc.h
@@ -0,0 +1,48 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * Copyright 2012 Marek Olšák <maraeo@gmail.com>
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+/* A simple allocator that suballocates memory from a large buffer. */
+
+#ifndef U_SUBALLOC
+#define U_SUBALLOC
+
+struct u_suballocator;
+
+struct u_suballocator *
+u_suballocator_create(struct pipe_context *pipe, unsigned size,
+                      unsigned alignment, unsigned bind, unsigned usage,
+		      boolean zero_buffer_memory);
+
+void
+u_suballocator_destroy(struct u_suballocator *allocator);
+
+void
+u_suballocator_alloc(struct u_suballocator *allocator, unsigned size,
+                     unsigned *out_offset, struct pipe_resource **outbuf);
+
+#endif
diff --git a/mesalib/src/gallium/auxiliary/util/u_surface.c b/mesalib/src/gallium/auxiliary/util/u_surface.c
index 2c197c3df..5e771c950 100644
--- a/mesalib/src/gallium/auxiliary/util/u_surface.c
+++ b/mesalib/src/gallium/auxiliary/util/u_surface.c
@@ -49,14 +49,11 @@
  */
 void
 u_surface_default_template(struct pipe_surface *surf,
-                           const struct pipe_resource *texture,
-                           unsigned bind)
+                           const struct pipe_resource *texture)
 {
    memset(surf, 0, sizeof(*surf));
 
    surf->format = texture->format;
-   /* XXX should filter out all non-rt/ds bind flags ? */
-   surf->usage = bind;
 }
 
 /**
@@ -110,7 +107,7 @@ util_create_rgba_texture(struct pipe_context *pipe,
       return FALSE;
 
    /* create surface */
-   u_surface_default_template(&surf_templ, *textureOut, bind);
+   u_surface_default_template(&surf_templ, *textureOut);
    return TRUE;
 }
 
@@ -531,3 +528,163 @@ util_clear_depth_stencil(struct pipe_context *pipe,
       pipe->transfer_unmap(pipe, dst_trans);
    }
 }
+
+
+/* Return whether this is an RGBA, Z, S, or combined ZS format.
+ */
+static unsigned
+get_format_mask(enum pipe_format format)
+{
+   const struct util_format_description *desc = util_format_description(format);
+
+   assert(desc);
+
+   if (util_format_has_depth(desc)) {
+      if (util_format_has_stencil(desc)) {
+         return PIPE_MASK_ZS;
+      } else {
+         return PIPE_MASK_Z;
+      }
+   } else {
+      if (util_format_has_stencil(desc)) {
+         return PIPE_MASK_S;
+      } else {
+         return PIPE_MASK_RGBA;
+      }
+   }
+}
+
+/* Return if the box is totally inside the resource.
+ */
+static boolean
+is_box_inside_resource(const struct pipe_resource *res,
+                       const struct pipe_box *box,
+                       unsigned level)
+{
+   unsigned width = 1, height = 1, depth = 1;
+
+   switch (res->target) {
+   case PIPE_BUFFER:
+      width = res->width0;
+      height = 1;
+      depth = 1;
+      break;
+   case PIPE_TEXTURE_1D:
+      width = u_minify(res->width0, level);
+      height = 1;
+      depth = 1;
+      break;
+   case PIPE_TEXTURE_2D:
+   case PIPE_TEXTURE_RECT:
+      width = u_minify(res->width0, level);
+      height = u_minify(res->height0, level);
+      depth = 1;
+      break;
+   case PIPE_TEXTURE_3D:
+      width = u_minify(res->width0, level);
+      height = u_minify(res->height0, level);
+      depth = u_minify(res->depth0, level);
+      break;
+   case PIPE_TEXTURE_CUBE:
+      width = u_minify(res->width0, level);
+      height = u_minify(res->height0, level);
+      depth = 6;
+      break;
+   case PIPE_TEXTURE_1D_ARRAY:
+      width = u_minify(res->width0, level);
+      height = 1;
+      depth = res->array_size;
+      break;
+   case PIPE_TEXTURE_2D_ARRAY:
+      width = u_minify(res->width0, level);
+      height = u_minify(res->height0, level);
+      depth = res->array_size;
+      break;
+   case PIPE_TEXTURE_CUBE_ARRAY:
+      width = u_minify(res->width0, level);
+      height = u_minify(res->height0, level);
+      depth = res->array_size;
+      assert(res->array_size % 6 == 0);
+      break;
+   case PIPE_MAX_TEXTURE_TYPES:;
+   }
+
+   return box->x >= 0 &&
+          box->x + box->width <= (int) width &&
+          box->y >= 0 &&
+          box->y + box->height <= (int) height &&
+          box->z >= 0 &&
+          box->z + box->depth <= (int) depth;
+}
+
+static unsigned
+get_sample_count(const struct pipe_resource *res)
+{
+   return res->nr_samples ? res->nr_samples : 1;
+}
+
+/**
+ * Try to do a blit using resource_copy_region. The function calls
+ * resource_copy_region if the blit description is compatible with it.
+ *
+ * It returns TRUE if the blit was done using resource_copy_region.
+ *
+ * It returns FALSE otherwise and the caller must fall back to a more generic
+ * codepath for the blit operation. (e.g. by using u_blitter)
+ */
+boolean
+util_try_blit_via_copy_region(struct pipe_context *ctx,
+                              const struct pipe_blit_info *blit)
+{
+   unsigned mask = get_format_mask(blit->dst.format);
+
+   /* No format conversions. */
+   if (blit->src.resource->format != blit->src.format ||
+       blit->dst.resource->format != blit->dst.format ||
+       !util_is_format_compatible(
+          util_format_description(blit->src.resource->format),
+          util_format_description(blit->dst.resource->format))) {
+      return FALSE;
+   }
+
+   /* No masks, no filtering, no scissor. */
+   if ((blit->mask & mask) != mask ||
+       blit->filter != PIPE_TEX_FILTER_NEAREST ||
+       blit->scissor_enable) {
+      return FALSE;
+   }
+
+   /* No flipping. */
+   if (blit->src.box.width < 0 ||
+       blit->src.box.height < 0 ||
+       blit->src.box.depth < 0) {
+      return FALSE;
+   }
+
+   /* No scaling. */
+   if (blit->src.box.width != blit->dst.box.width ||
+       blit->src.box.height != blit->dst.box.height ||
+       blit->src.box.depth != blit->dst.box.depth) {
+      return FALSE;
+   }
+
+   /* No out-of-bounds access. */
+   if (!is_box_inside_resource(blit->src.resource, &blit->src.box,
+                               blit->src.level) ||
+       !is_box_inside_resource(blit->dst.resource, &blit->dst.box,
+                               blit->dst.level)) {
+      return FALSE;
+   }
+
+   /* Sample counts must match. */
+   if (get_sample_count(blit->src.resource) !=
+       get_sample_count(blit->dst.resource)) {
+      return FALSE;
+   }
+
+   ctx->resource_copy_region(ctx, blit->dst.resource, blit->dst.level,
+                             blit->dst.box.x, blit->dst.box.y, blit->dst.box.z,
+                             blit->src.resource, blit->src.level,
+                             &blit->src.box);
+   return TRUE;
+}
diff --git a/mesalib/src/gallium/auxiliary/util/u_surface.h b/mesalib/src/gallium/auxiliary/util/u_surface.h
index dd4d5785e..fe950c818 100644
--- a/mesalib/src/gallium/auxiliary/util/u_surface.h
+++ b/mesalib/src/gallium/auxiliary/util/u_surface.h
@@ -42,8 +42,7 @@ extern "C" {
 
 extern void
 u_surface_default_template(struct pipe_surface *view,
-                           const struct pipe_resource *texture,
-                           unsigned bind);
+                           const struct pipe_resource *texture);
 
 extern boolean
 util_create_rgba_texture(struct pipe_context *ctx,
@@ -98,6 +97,10 @@ util_clear_depth_stencil(struct pipe_context *pipe,
                          unsigned dstx, unsigned dsty,
                          unsigned width, unsigned height);
 
+extern boolean
+util_try_blit_via_copy_region(struct pipe_context *ctx,
+                              const struct pipe_blit_info *blit);
+
 
 #ifdef __cplusplus
 }
diff --git a/mesalib/src/gallium/auxiliary/util/u_surfaces.c b/mesalib/src/gallium/auxiliary/util/u_surfaces.c
index b0cfec2a8..c2f2b74c9 100644
--- a/mesalib/src/gallium/auxiliary/util/u_surfaces.c
+++ b/mesalib/src/gallium/auxiliary/util/u_surfaces.c
@@ -32,7 +32,7 @@
 boolean
 util_surfaces_do_get(struct util_surfaces *us, unsigned surface_struct_size,
                      struct pipe_context *ctx, struct pipe_resource *pt,
-                     unsigned level, unsigned layer, unsigned flags,
+                     unsigned level, unsigned layer,
                      struct pipe_surface **res)
 {
    struct pipe_surface *ps;
@@ -65,7 +65,7 @@ util_surfaces_do_get(struct util_surfaces *us, unsigned surface_struct_size,
       return FALSE;
    }
 
-   pipe_surface_init(ctx, ps, pt, level, layer, flags);
+   pipe_surface_init(ctx, ps, pt, level, layer);
 
    if(pt->target == PIPE_TEXTURE_3D || pt->target == PIPE_TEXTURE_CUBE)
       cso_hash_insert(us->u.hash, (layer << 8) | level, ps);
diff --git a/mesalib/src/gallium/auxiliary/util/u_surfaces.h b/mesalib/src/gallium/auxiliary/util/u_surfaces.h
index 9581feda7..1605215cb 100644
--- a/mesalib/src/gallium/auxiliary/util/u_surfaces.h
+++ b/mesalib/src/gallium/auxiliary/util/u_surfaces.h
@@ -46,14 +46,14 @@ struct util_surfaces
 boolean
 util_surfaces_do_get(struct util_surfaces *us, unsigned surface_struct_size,
                      struct pipe_context *ctx, struct pipe_resource *pt,
-                     unsigned level, unsigned layer, unsigned flags,
+                     unsigned level, unsigned layer,
                      struct pipe_surface **res);
 
 /* fast inline path for the very common case */
 static INLINE boolean
 util_surfaces_get(struct util_surfaces *us, unsigned surface_struct_size,
                   struct pipe_context *ctx, struct pipe_resource *pt,
-                  unsigned level, unsigned layer, unsigned flags,
+                  unsigned level, unsigned layer,
                   struct pipe_surface **res)
 {
    if(likely((pt->target == PIPE_TEXTURE_2D || pt->target == PIPE_TEXTURE_RECT) && us->u.array))
@@ -67,7 +67,7 @@ util_surfaces_get(struct util_surfaces *us, unsigned surface_struct_size,
       }
    }
 
-   return util_surfaces_do_get(us, surface_struct_size, ctx, pt, level, layer, flags, res);
+   return util_surfaces_do_get(us, surface_struct_size, ctx, pt, level, layer, res);
 }
 
 static INLINE struct pipe_surface *