libXft pixman mesa git update 17 dec 2012

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

71 files changed, 2047 insertions, 1274 deletions

diff --git a/mesalib/src/gallium/auxiliary/Makefile.sources b/mesalib/src/gallium/auxiliary/Makefile.sources
index 724178535..e54e9201c 100644
--- a/mesalib/src/gallium/auxiliary/Makefile.sources
+++ b/mesalib/src/gallium/auxiliary/Makefile.sources
@@ -130,6 +130,7 @@ C_SOURCES := \
 	util/u_slab.c \
 	util/u_snprintf.c \
 	util/u_staging.c \
+	util/u_suballoc.c \
 	util/u_surface.c \
 	util/u_surfaces.c \
 	util/u_texture.c \
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 *
diff --git a/mesalib/src/glsl/Makefile.sources b/mesalib/src/glsl/Makefile.sources
index 5e098fc05..d984c5ca7 100644
--- a/mesalib/src/glsl/Makefile.sources
+++ b/mesalib/src/glsl/Makefile.sources
@@ -57,6 +57,7 @@ LIBGLSL_FILES = \
 	$(GLSL_SRCDIR)/lower_jumps.cpp \
 	$(GLSL_SRCDIR)/lower_mat_op_to_vec.cpp \
 	$(GLSL_SRCDIR)/lower_noise.cpp \
+	$(GLSL_SRCDIR)/lower_packed_varyings.cpp \
 	$(GLSL_SRCDIR)/lower_texture_projection.cpp \
 	$(GLSL_SRCDIR)/lower_variable_index_to_cond_assign.cpp \
 	$(GLSL_SRCDIR)/lower_vec_index_to_cond_assign.cpp \
diff --git a/mesalib/src/glsl/glsl_parser_extras.cpp b/mesalib/src/glsl/glsl_parser_extras.cpp
index d36089226..91122cc60 100644
--- a/mesalib/src/glsl/glsl_parser_extras.cpp
+++ b/mesalib/src/glsl/glsl_parser_extras.cpp
@@ -151,7 +151,7 @@ _mesa_glsl_parse_state::check_version(unsigned required_glsl_version,
 
    va_list args;
    va_start(args, fmt);
-   char *problem = ralloc_vasprintf(ctx, fmt, args);
+   char *problem = ralloc_vasprintf(this, fmt, args);
    va_end(args);
    const char *glsl_version_string
       = glsl_compute_version_string(ctx, false, required_glsl_version);
@@ -159,14 +159,14 @@ _mesa_glsl_parse_state::check_version(unsigned required_glsl_version,
       = glsl_compute_version_string(ctx, true, required_glsl_es_version);
    const char *requirement_string = "";
    if (required_glsl_version && required_glsl_es_version) {
-      requirement_string = ralloc_asprintf(ctx, " (%s or %s required)",
+      requirement_string = ralloc_asprintf(this, " (%s or %s required)",
                                            glsl_version_string,
                                            glsl_es_version_string);
    } else if (required_glsl_version) {
-      requirement_string = ralloc_asprintf(ctx, " (%s required)",
+      requirement_string = ralloc_asprintf(this, " (%s required)",
                                            glsl_version_string);
    } else if (required_glsl_es_version) {
-      requirement_string = ralloc_asprintf(ctx, " (%s required)",
+      requirement_string = ralloc_asprintf(this, " (%s required)",
                                            glsl_es_version_string);
    }
    _mesa_glsl_error(locp, this, "%s in %s%s.",
diff --git a/mesalib/src/glsl/ir.cpp b/mesalib/src/glsl/ir.cpp
index 7b0a487b6..703f5ec58 100644
--- a/mesalib/src/glsl/ir.cpp
+++ b/mesalib/src/glsl/ir.cpp
@@ -1492,6 +1492,7 @@ ir_variable::ir_variable(const struct glsl_type *type, const char *name,
    this->explicit_location = false;
    this->has_initializer = false;
    this->location = -1;
+   this->location_frac = 0;
    this->uniform_block = -1;
    this->warn_extension = NULL;
    this->constant_value = NULL;
diff --git a/mesalib/src/glsl/ir.h b/mesalib/src/glsl/ir.h
index 89c516c87..85fc5ce95 100644
--- a/mesalib/src/glsl/ir.h
+++ b/mesalib/src/glsl/ir.h
@@ -437,6 +437,24 @@ public:
    unsigned has_initializer:1;
 
    /**
+    * Is this variable a generic output or input that has not yet been matched
+    * up to a variable in another stage of the pipeline?
+    *
+    * This is used by the linker as scratch storage while assigning locations
+    * to generic inputs and outputs.
+    */
+   unsigned is_unmatched_generic_inout:1;
+
+   /**
+    * If non-zero, then this variable may be packed along with other variables
+    * into a single varying slot, so this offset should be applied when
+    * accessing components.  For example, an offset of 1 means that the x
+    * component of this variable is actually stored in component y of the
+    * location specified by \c location.
+    */
+   unsigned location_frac:2;
+
+   /**
     * \brief Layout qualifier for gl_FragDepth.
     *
     * This is not equal to \c ir_depth_layout_none if and only if this
diff --git a/mesalib/src/glsl/ir_optimization.h b/mesalib/src/glsl/ir_optimization.h
index 2220d511e..6b9519174 100644
--- a/mesalib/src/glsl/ir_optimization.h
+++ b/mesalib/src/glsl/ir_optimization.h
@@ -72,9 +72,12 @@ bool lower_noise(exec_list *instructions);
 bool lower_variable_index_to_cond_assign(exec_list *instructions,
     bool lower_input, bool lower_output, bool lower_temp, bool lower_uniform);
 bool lower_quadop_vector(exec_list *instructions, bool dont_lower_swz);
-bool lower_clip_distance(exec_list *instructions);
+bool lower_clip_distance(gl_shader *shader);
 void lower_output_reads(exec_list *instructions);
 void lower_ubo_reference(struct gl_shader *shader, exec_list *instructions);
+void lower_packed_varyings(void *mem_ctx, unsigned location_base,
+                           unsigned locations_used, ir_variable_mode mode,
+                           gl_shader *shader);
 bool optimize_redundant_jumps(exec_list *instructions);
 bool optimize_split_arrays(exec_list *instructions, bool linked);
 
diff --git a/mesalib/src/glsl/linker.cpp b/mesalib/src/glsl/linker.cpp
index 29fc5d841..be08156e0 100644
--- a/mesalib/src/glsl/linker.cpp
+++ b/mesalib/src/glsl/linker.cpp
@@ -76,6 +76,8 @@ extern "C" {
 #include "main/shaderobj.h"
 }
 
+#define ALIGN(value, alignment)  (((value) + alignment - 1) & ~(alignment - 1))
+
 /**
  * Visitor that determines whether or not a variable is ever written.
  */
@@ -200,19 +202,38 @@ linker_warning(gl_shader_program *prog, const char *fmt, ...)
 
 
 void
-link_invalidate_variable_locations(gl_shader *sh, enum ir_variable_mode mode,
-				   int generic_base)
+link_invalidate_variable_locations(gl_shader *sh, int input_base,
+                                   int output_base)
 {
    foreach_list(node, sh->ir) {
       ir_variable *const var = ((ir_instruction *) node)->as_variable();
 
-      if ((var == NULL) || (var->mode != (unsigned) mode))
-	 continue;
+      if (var == NULL)
+         continue;
+
+      int base;
+      switch (var->mode) {
+      case ir_var_in:
+         base = input_base;
+         break;
+      case ir_var_out:
+         base = output_base;
+         break;
+      default:
+         continue;
+      }
 
       /* Only assign locations for generic attributes / varyings / etc.
        */
-      if ((var->location >= generic_base) && !var->explicit_location)
-	  var->location = -1;
+      if ((var->location >= base) && !var->explicit_location)
+         var->location = -1;
+
+      if ((var->location == -1) && !var->explicit_location) {
+         var->is_unmatched_generic_inout = 1;
+         var->location_frac = 0;
+      } else {
+         var->is_unmatched_generic_inout = 0;
+      }
    }
 }
 
@@ -1309,8 +1330,6 @@ assign_attribute_or_color_locations(gl_shader_program *prog,
       (target_index == MESA_SHADER_VERTEX) ? ir_var_in : ir_var_out;
 
 
-   link_invalidate_variable_locations(sh, direction, generic_base);
-
    /* Temporary storage for the set of attributes that need locations assigned.
     */
    struct temp_attr {
@@ -1352,6 +1371,7 @@ assign_attribute_or_color_locations(gl_shader_program *prog,
 	 if (prog->AttributeBindings->get(binding, var->name)) {
 	    assert(binding >= VERT_ATTRIB_GENERIC0);
 	    var->location = binding;
+            var->is_unmatched_generic_inout = 0;
 	 }
       } else if (target_index == MESA_SHADER_FRAGMENT) {
 	 unsigned binding;
@@ -1360,6 +1380,7 @@ assign_attribute_or_color_locations(gl_shader_program *prog,
 	 if (prog->FragDataBindings->get(binding, var->name)) {
 	    assert(binding >= FRAG_RESULT_DATA0);
 	    var->location = binding;
+            var->is_unmatched_generic_inout = 0;
 
 	    if (prog->FragDataIndexBindings->get(index, var->name)) {
 	       var->index = index;
@@ -1475,6 +1496,7 @@ assign_attribute_or_color_locations(gl_shader_program *prog,
       }
 
       to_assign[i].var->location = generic_base + location;
+      to_assign[i].var->is_unmatched_generic_inout = 0;
       used_locations |= (use_mask << location);
    }
 
@@ -1498,7 +1520,7 @@ demote_shader_inputs_and_outputs(gl_shader *sh, enum ir_variable_mode mode)
        * its value is used by other shader stages.  This will cause the variable
        * to have a location assigned.
        */
-      if (var->location == -1) {
+      if (var->is_unmatched_generic_inout) {
 	 var->mode = ir_var_auto;
       }
    }
@@ -1517,18 +1539,12 @@ public:
    static bool is_same(const tfeedback_decl &x, const tfeedback_decl &y);
    bool assign_location(struct gl_context *ctx, struct gl_shader_program *prog,
                         ir_variable *output_var);
-   bool accumulate_num_outputs(struct gl_shader_program *prog, unsigned *count);
+   unsigned get_num_outputs() const;
    bool store(struct gl_context *ctx, struct gl_shader_program *prog,
               struct gl_transform_feedback_info *info, unsigned buffer,
               const unsigned max_outputs) const;
-
-   /**
-    * True if assign_location() has been called for this object.
-    */
-   bool is_assigned() const
-   {
-      return this->location != -1;
-   }
+   ir_variable *find_output_var(gl_shader_program *prog,
+                                gl_shader *producer) const;
 
    bool is_next_buffer_separator() const
    {
@@ -1541,19 +1557,8 @@ public:
    }
 
    /**
-    * Determine whether this object refers to the variable var.
-    */
-   bool matches_var(ir_variable *var) const
-   {
-      if (this->is_clip_distance_mesa)
-         return strcmp(var->name, "gl_ClipDistanceMESA") == 0;
-      else
-         return strcmp(var->name, this->var_name) == 0;
-   }
-
-   /**
     * The total number of varying components taken up by this variable.  Only
-    * valid if is_assigned() is true.
+    * valid if assign_location() has been called.
     */
    unsigned num_components() const
    {
@@ -1598,6 +1603,17 @@ private:
    int location;
 
    /**
+    * If non-zero, then this variable may be packed along with other variables
+    * into a single varying slot, so this offset should be applied when
+    * accessing components.  For example, an offset of 1 means that the x
+    * component of this variable is actually stored in component y of the
+    * location specified by \c location.
+    *
+    * Only valid if location != -1.
+    */
+   unsigned location_frac;
+
+   /**
     * If location != -1, the number of vector elements in this variable, or 1
     * if this variable is a scalar.
     */
@@ -1736,6 +1752,8 @@ tfeedback_decl::assign_location(struct gl_context *ctx,
       /* Array variable */
       const unsigned matrix_cols =
          output_var->type->fields.array->matrix_columns;
+      const unsigned vector_elements =
+         output_var->type->fields.array->vector_elements;
       unsigned actual_array_size = this->is_clip_distance_mesa ?
          prog->Vert.ClipDistanceArraySize : output_var->type->array_size();
 
@@ -1751,16 +1769,22 @@ tfeedback_decl::assign_location(struct gl_context *ctx,
          if (this->is_clip_distance_mesa) {
             this->location =
                output_var->location + this->array_subscript / 4;
+            this->location_frac = this->array_subscript % 4;
          } else {
-            this->location =
-               output_var->location + this->array_subscript * matrix_cols;
+            unsigned fine_location
+               = output_var->location * 4 + output_var->location_frac;
+            unsigned array_elem_size = vector_elements * matrix_cols;
+            fine_location += array_elem_size * this->array_subscript;
+            this->location = fine_location / 4;
+            this->location_frac = fine_location % 4;
          }
          this->size = 1;
       } else {
          this->location = output_var->location;
+         this->location_frac = output_var->location_frac;
          this->size = actual_array_size;
       }
-      this->vector_elements = output_var->type->fields.array->vector_elements;
+      this->vector_elements = vector_elements;
       this->matrix_columns = matrix_cols;
       if (this->is_clip_distance_mesa)
          this->type = GL_FLOAT;
@@ -1775,6 +1799,7 @@ tfeedback_decl::assign_location(struct gl_context *ctx,
          return false;
       }
       this->location = output_var->location;
+      this->location_frac = output_var->location_frac;
       this->size = 1;
       this->vector_elements = output_var->type->vector_elements;
       this->matrix_columns = output_var->type->matrix_columns;
@@ -1802,34 +1827,14 @@ tfeedback_decl::assign_location(struct gl_context *ctx,
 }
 
 
-bool
-tfeedback_decl::accumulate_num_outputs(struct gl_shader_program *prog,
-                                       unsigned *count)
+unsigned
+tfeedback_decl::get_num_outputs() const
 {
    if (!this->is_varying()) {
-      return true;
+      return 0;
    }
 
-   if (!this->is_assigned()) {
-      /* From GL_EXT_transform_feedback:
-       *   A program will fail to link if:
-       *
-       *   * any variable name specified in the <varyings> array is not
-       *     declared as an output in the geometry shader (if present) or
-       *     the vertex shader (if no geometry shader is present);
-       */
-      linker_error(prog, "Transform feedback varying %s undeclared.",
-                   this->orig_name);
-      return false;
-   }
-
-   unsigned translated_size = this->size;
-   if (this->is_clip_distance_mesa)
-      translated_size = (translated_size + 3) / 4;
-
-   *count += translated_size * this->matrix_columns;
-
-   return true;
+   return (this->num_components() + this->location_frac + 3)/4;
 }
 
 
@@ -1867,35 +1872,23 @@ tfeedback_decl::store(struct gl_context *ctx, struct gl_shader_program *prog,
       return false;
    }
 
-   unsigned translated_size = this->size;
-   if (this->is_clip_distance_mesa)
-      translated_size = (translated_size + 3) / 4;
-   unsigned components_so_far = 0;
-   for (unsigned index = 0; index < translated_size; ++index) {
-      for (unsigned v = 0; v < this->matrix_columns; ++v) {
-         unsigned num_components = this->vector_elements;
-         assert(info->NumOutputs < max_outputs);
-         info->Outputs[info->NumOutputs].ComponentOffset = 0;
-         if (this->is_clip_distance_mesa) {
-            if (this->is_subscripted) {
-               num_components = 1;
-               info->Outputs[info->NumOutputs].ComponentOffset =
-                  this->array_subscript % 4;
-            } else {
-               num_components = MIN2(4, this->size - components_so_far);
-            }
-         }
-         info->Outputs[info->NumOutputs].OutputRegister =
-            this->location + v + index * this->matrix_columns;
-         info->Outputs[info->NumOutputs].NumComponents = num_components;
-         info->Outputs[info->NumOutputs].OutputBuffer = buffer;
-         info->Outputs[info->NumOutputs].DstOffset = info->BufferStride[buffer];
-         ++info->NumOutputs;
-         info->BufferStride[buffer] += num_components;
-         components_so_far += num_components;
-      }
+   unsigned location = this->location;
+   unsigned location_frac = this->location_frac;
+   unsigned num_components = this->num_components();
+   while (num_components > 0) {
+      unsigned output_size = MIN2(num_components, 4 - location_frac);
+      assert(info->NumOutputs < max_outputs);
+      info->Outputs[info->NumOutputs].ComponentOffset = location_frac;
+      info->Outputs[info->NumOutputs].OutputRegister = location;
+      info->Outputs[info->NumOutputs].NumComponents = output_size;
+      info->Outputs[info->NumOutputs].OutputBuffer = buffer;
+      info->Outputs[info->NumOutputs].DstOffset = info->BufferStride[buffer];
+      ++info->NumOutputs;
+      info->BufferStride[buffer] += output_size;
+      num_components -= output_size;
+      location++;
+      location_frac = 0;
    }
-   assert(components_so_far == this->num_components());
 
    info->Varyings[info->NumVarying].Name = ralloc_strdup(prog, this->orig_name);
    info->Varyings[info->NumVarying].Type = this->type;
@@ -1906,6 +1899,29 @@ tfeedback_decl::store(struct gl_context *ctx, struct gl_shader_program *prog,
 }
 
 
+ir_variable *
+tfeedback_decl::find_output_var(gl_shader_program *prog,
+                                gl_shader *producer) const
+{
+   const char *name = this->is_clip_distance_mesa
+      ? "gl_ClipDistanceMESA" : this->var_name;
+   ir_variable *var = producer->symbols->get_variable(name);
+   if (var && var->mode == ir_var_out)
+      return var;
+
+   /* From GL_EXT_transform_feedback:
+    *   A program will fail to link if:
+    *
+    *   * any variable name specified in the <varyings> array is not
+    *     declared as an output in the geometry shader (if present) or
+    *     the vertex shader (if no geometry shader is present);
+    */
+   linker_error(prog, "Transform feedback varying %s undeclared.",
+                this->orig_name);
+   return NULL;
+}
+
+
 /**
  * Parse all the transform feedback declarations that were passed to
  * glTransformFeedbackVaryings() and store them in tfeedback_decl objects.
@@ -1951,61 +1967,294 @@ parse_tfeedback_decls(struct gl_context *ctx, struct gl_shader_program *prog,
 
 
 /**
- * Assign a location for a variable that is produced in one pipeline stage
- * (the "producer") and consumed in the next stage (the "consumer").
- *
- * \param input_var is the input variable declaration in the consumer.
- *
- * \param output_var is the output variable declaration in the producer.
- *
- * \param input_index is the counter that keeps track of assigned input
- *        locations in the consumer.
- *
- * \param output_index is the counter that keeps track of assigned output
- *        locations in the producer.
+ * Data structure recording the relationship between outputs of one shader
+ * stage (the "producer") and inputs of another (the "consumer").
+ */
+class varying_matches
+{
+public:
+   varying_matches(bool disable_varying_packing);
+   ~varying_matches();
+   void record(ir_variable *producer_var, ir_variable *consumer_var);
+   unsigned assign_locations();
+   void store_locations(unsigned producer_base, unsigned consumer_base) const;
+
+private:
+   /**
+    * If true, this driver disables varying packing, so all varyings need to
+    * be aligned on slot boundaries, and take up a number of slots equal to
+    * their number of matrix columns times their array size.
+    */
+   const bool disable_varying_packing;
+
+   /**
+    * Enum representing the order in which varyings are packed within a
+    * packing class.
+    *
+    * Currently we pack vec4's first, then vec2's, then scalar values, then
+    * vec3's.  This order ensures that the only vectors that are at risk of
+    * having to be "double parked" (split between two adjacent varying slots)
+    * are the vec3's.
+    */
+   enum packing_order_enum {
+      PACKING_ORDER_VEC4,
+      PACKING_ORDER_VEC2,
+      PACKING_ORDER_SCALAR,
+      PACKING_ORDER_VEC3,
+   };
+
+   static unsigned compute_packing_class(ir_variable *var);
+   static packing_order_enum compute_packing_order(ir_variable *var);
+   static int match_comparator(const void *x_generic, const void *y_generic);
+
+   /**
+    * Structure recording the relationship between a single producer output
+    * and a single consumer input.
+    */
+   struct match {
+      /**
+       * Packing class for this varying, computed by compute_packing_class().
+       */
+      unsigned packing_class;
+
+      /**
+       * Packing order for this varying, computed by compute_packing_order().
+       */
+      packing_order_enum packing_order;
+      unsigned num_components;
+
+      /**
+       * The output variable in the producer stage.
+       */
+      ir_variable *producer_var;
+
+      /**
+       * The input variable in the consumer stage.
+       */
+      ir_variable *consumer_var;
+
+      /**
+       * The location which has been assigned for this varying.  This is
+       * expressed in multiples of a float, with the first generic varying
+       * (i.e. the one referred to by VERT_RESULT_VAR0 or FRAG_ATTRIB_VAR0)
+       * represented by the value 0.
+       */
+      unsigned generic_location;
+   } *matches;
+
+   /**
+    * The number of elements in the \c matches array that are currently in
+    * use.
+    */
+   unsigned num_matches;
+
+   /**
+    * The number of elements that were set aside for the \c matches array when
+    * it was allocated.
+    */
+   unsigned matches_capacity;
+};
+
+
+varying_matches::varying_matches(bool disable_varying_packing)
+   : disable_varying_packing(disable_varying_packing)
+{
+   /* Note: this initial capacity is rather arbitrarily chosen to be large
+    * enough for many cases without wasting an unreasonable amount of space.
+    * varying_matches::record() will resize the array if there are more than
+    * this number of varyings.
+    */
+   this->matches_capacity = 8;
+   this->matches = (match *)
+      malloc(sizeof(*this->matches) * this->matches_capacity);
+   this->num_matches = 0;
+}
+
+
+varying_matches::~varying_matches()
+{
+   free(this->matches);
+}
+
+
+/**
+ * Record the given producer/consumer variable pair in the list of variables
+ * that should later be assigned locations.
  *
- * It is permissible for \c input_var to be NULL (this happens if a variable
- * is output by the producer and consumed by transform feedback, but not
- * consumed by the consumer).
+ * It is permissible for \c consumer_var to be NULL (this happens if a
+ * variable is output by the producer and consumed by transform feedback, but
+ * not consumed by the consumer).
  *
- * If the variable has already been assigned a location, this function has no
- * effect.
+ * If \c producer_var has already been paired up with a consumer_var, or
+ * producer_var is part of fixed pipeline functionality (and hence already has
+ * a location assigned), this function has no effect.
  */
 void
-assign_varying_location(ir_variable *input_var, ir_variable *output_var,
-                        unsigned *input_index, unsigned *output_index)
+varying_matches::record(ir_variable *producer_var, ir_variable *consumer_var)
 {
-   if (output_var->location != -1) {
-      /* Location already assigned. */
+   if (!producer_var->is_unmatched_generic_inout) {
+      /* Either a location already exists for this variable (since it is part
+       * of fixed functionality), or it has already been recorded as part of a
+       * previous match.
+       */
       return;
    }
 
-   if (input_var) {
-      assert(input_var->location == -1);
-      input_var->location = *input_index;
+   if (this->num_matches == this->matches_capacity) {
+      this->matches_capacity *= 2;
+      this->matches = (match *)
+         realloc(this->matches,
+                 sizeof(*this->matches) * this->matches_capacity);
+   }
+   this->matches[this->num_matches].packing_class
+      = this->compute_packing_class(producer_var);
+   this->matches[this->num_matches].packing_order
+      = this->compute_packing_order(producer_var);
+   if (this->disable_varying_packing) {
+      unsigned slots = producer_var->type->is_array()
+         ? (producer_var->type->length
+            * producer_var->type->fields.array->matrix_columns)
+         : producer_var->type->matrix_columns;
+      this->matches[this->num_matches].num_components = 4 * slots;
+   } else {
+      this->matches[this->num_matches].num_components
+         = producer_var->type->component_slots();
+   }
+   this->matches[this->num_matches].producer_var = producer_var;
+   this->matches[this->num_matches].consumer_var = consumer_var;
+   this->num_matches++;
+   producer_var->is_unmatched_generic_inout = 0;
+   if (consumer_var)
+      consumer_var->is_unmatched_generic_inout = 0;
+}
+
+
+/**
+ * Choose locations for all of the variable matches that were previously
+ * passed to varying_matches::record().
+ */
+unsigned
+varying_matches::assign_locations()
+{
+   /* Sort varying matches into an order that makes them easy to pack. */
+   qsort(this->matches, this->num_matches, sizeof(*this->matches),
+         &varying_matches::match_comparator);
+
+   unsigned generic_location = 0;
+
+   for (unsigned i = 0; i < this->num_matches; i++) {
+      /* Advance to the next slot if this varying has a different packing
+       * class than the previous one, and we're not already on a slot
+       * boundary.
+       */
+      if (i > 0 &&
+          this->matches[i - 1].packing_class
+          != this->matches[i].packing_class) {
+         generic_location = ALIGN(generic_location, 4);
+      }
+
+      this->matches[i].generic_location = generic_location;
+
+      generic_location += this->matches[i].num_components;
    }
 
-   output_var->location = *output_index;
+   return (generic_location + 3) / 4;
+}
 
-   /* FINISHME: Support for "varying" records in GLSL 1.50. */
-   assert(!output_var->type->is_record());
 
-   if (output_var->type->is_array()) {
-      const unsigned slots = output_var->type->length
-         * output_var->type->fields.array->matrix_columns;
+/**
+ * Update the producer and consumer shaders to reflect the locations
+ * assignments that were made by varying_matches::assign_locations().
+ */
+void
+varying_matches::store_locations(unsigned producer_base,
+                                 unsigned consumer_base) const
+{
+   for (unsigned i = 0; i < this->num_matches; i++) {
+      ir_variable *producer_var = this->matches[i].producer_var;
+      ir_variable *consumer_var = this->matches[i].consumer_var;
+      unsigned generic_location = this->matches[i].generic_location;
+      unsigned slot = generic_location / 4;
+      unsigned offset = generic_location % 4;
+
+      producer_var->location = producer_base + slot;
+      producer_var->location_frac = offset;
+      if (consumer_var) {
+         assert(consumer_var->location == -1);
+         consumer_var->location = consumer_base + slot;
+         consumer_var->location_frac = offset;
+      }
+   }
+}
+
+
+/**
+ * Compute the "packing class" of the given varying.  This is an unsigned
+ * integer with the property that two variables in the same packing class can
+ * be safely backed into the same vec4.
+ */
+unsigned
+varying_matches::compute_packing_class(ir_variable *var)
+{
+   /* In this initial implementation we conservatively assume that variables
+    * can only be packed if their base type (float/int/uint/bool) matches and
+    * their interpolation and centroid qualifiers match.
+    *
+    * TODO: relax these restrictions when the driver back-end permits.
+    */
+   unsigned packing_class = var->centroid ? 1 : 0;
+   packing_class *= 4;
+   packing_class += var->interpolation;
+   packing_class *= GLSL_TYPE_ERROR;
+   packing_class += var->type->get_scalar_type()->base_type;
+   return packing_class;
+}
 
-      *output_index += slots;
-      *input_index += slots;
-   } else {
-      const unsigned slots = output_var->type->matrix_columns;
 
-      *output_index += slots;
-      *input_index += slots;
+/**
+ * Compute the "packing order" of the given varying.  This is a sort key we
+ * use to determine when to attempt to pack the given varying relative to
+ * other varyings in the same packing class.
+ */
+varying_matches::packing_order_enum
+varying_matches::compute_packing_order(ir_variable *var)
+{
+   const glsl_type *element_type = var->type;
+
+   /* FINISHME: Support for "varying" records in GLSL 1.50. */
+   while (element_type->base_type == GLSL_TYPE_ARRAY) {
+      element_type = element_type->fields.array;
+   }
+
+   switch (element_type->vector_elements) {
+   case 1: return PACKING_ORDER_SCALAR;
+   case 2: return PACKING_ORDER_VEC2;
+   case 3: return PACKING_ORDER_VEC3;
+   case 4: return PACKING_ORDER_VEC4;
+   default:
+      assert(!"Unexpected value of vector_elements");
+      return PACKING_ORDER_VEC4;
    }
 }
 
 
 /**
+ * Comparison function passed to qsort() to sort varyings by packing_class and
+ * then by packing_order.
+ */
+int
+varying_matches::match_comparator(const void *x_generic, const void *y_generic)
+{
+   const match *x = (const match *) x_generic;
+   const match *y = (const match *) y_generic;
+
+   if (x->packing_class != y->packing_class)
+      return x->packing_class - y->packing_class;
+   return x->packing_order - y->packing_order;
+}
+
+
+/**
  * Is the given variable a varying variable to be counted against the
  * limit in ctx->Const.MaxVarying?
  * This includes variables such as texcoords, colors and generic
@@ -2052,14 +2301,16 @@ is_varying_var(GLenum shaderType, const ir_variable *var)
  */
 bool
 assign_varying_locations(struct gl_context *ctx,
+			 void *mem_ctx,
 			 struct gl_shader_program *prog,
 			 gl_shader *producer, gl_shader *consumer,
                          unsigned num_tfeedback_decls,
                          tfeedback_decl *tfeedback_decls)
 {
    /* FINISHME: Set dynamically when geometry shader support is added. */
-   unsigned output_index = VERT_RESULT_VAR0;
-   unsigned input_index = FRAG_ATTRIB_VAR0;
+   const unsigned producer_base = VERT_RESULT_VAR0;
+   const unsigned consumer_base = FRAG_ATTRIB_VAR0;
+   varying_matches matches(ctx->Const.DisableVaryingPacking);
 
    /* Operate in a total of three passes.
     *
@@ -2072,10 +2323,6 @@ assign_varying_locations(struct gl_context *ctx,
     *    not being inputs.  This lets the optimizer eliminate them.
     */
 
-   link_invalidate_variable_locations(producer, ir_var_out, VERT_RESULT_VAR0);
-   if (consumer)
-      link_invalidate_variable_locations(consumer, ir_var_in, FRAG_ATTRIB_VAR0);
-
    foreach_list(node, producer->ir) {
       ir_variable *const output_var = ((ir_instruction *) node)->as_variable();
 
@@ -2089,23 +2336,51 @@ assign_varying_locations(struct gl_context *ctx,
          input_var = NULL;
 
       if (input_var) {
-         assign_varying_location(input_var, output_var, &input_index,
-                                 &output_index);
+         matches.record(output_var, input_var);
       }
+   }
 
-      for (unsigned i = 0; i < num_tfeedback_decls; ++i) {
-         if (!tfeedback_decls[i].is_varying())
-            continue;
+   for (unsigned i = 0; i < num_tfeedback_decls; ++i) {
+      if (!tfeedback_decls[i].is_varying())
+         continue;
 
-         if (!tfeedback_decls[i].is_assigned() &&
-             tfeedback_decls[i].matches_var(output_var)) {
-            if (output_var->location == -1) {
-               assign_varying_location(input_var, output_var, &input_index,
-                                       &output_index);
-            }
-            if (!tfeedback_decls[i].assign_location(ctx, prog, output_var))
-               return false;
-         }
+      ir_variable *output_var
+         = tfeedback_decls[i].find_output_var(prog, producer);
+
+      if (output_var == NULL)
+         return false;
+
+      if (output_var->is_unmatched_generic_inout) {
+         matches.record(output_var, NULL);
+      }
+   }
+
+   const unsigned slots_used = matches.assign_locations();
+   matches.store_locations(producer_base, consumer_base);
+
+   for (unsigned i = 0; i < num_tfeedback_decls; ++i) {
+      if (!tfeedback_decls[i].is_varying())
+         continue;
+
+      ir_variable *output_var
+         = tfeedback_decls[i].find_output_var(prog, producer);
+
+      if (!tfeedback_decls[i].assign_location(ctx, prog, output_var))
+         return false;
+   }
+
+   if (ctx->Const.DisableVaryingPacking) {
+      /* Transform feedback code assumes varyings are packed, so if the driver
+       * has disabled varying packing, make sure it does not support transform
+       * feedback.
+       */
+      assert(!ctx->Extensions.EXT_transform_feedback);
+   } else {
+      lower_packed_varyings(mem_ctx, producer_base, slots_used, ir_var_out,
+                            producer);
+      if (consumer) {
+         lower_packed_varyings(mem_ctx, consumer_base, slots_used, ir_var_in,
+                               consumer);
       }
    }
 
@@ -2118,7 +2393,7 @@ assign_varying_locations(struct gl_context *ctx,
          if ((var == NULL) || (var->mode != ir_var_in))
             continue;
 
-         if (var->location == -1) {
+         if (var->is_unmatched_generic_inout) {
             if (prog->Version <= 120) {
                /* On page 25 (page 31 of the PDF) of the GLSL 1.20 spec:
                 *
@@ -2215,8 +2490,7 @@ store_tfeedback_info(struct gl_context *ctx, struct gl_shader_program *prog,
 
    unsigned num_outputs = 0;
    for (unsigned i = 0; i < num_tfeedback_decls; ++i)
-      if (!tfeedback_decls[i].accumulate_num_outputs(prog, &num_outputs))
-         return false;
+      num_outputs += tfeedback_decls[i].get_num_outputs();
 
    prog->LinkedTransformFeedback.Outputs =
       rzalloc_array(prog,
@@ -2568,8 +2842,9 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
       if (!prog->LinkStatus)
 	 goto done;
 
-      if (ctx->ShaderCompilerOptions[i].LowerClipDistance)
-         lower_clip_distance(prog->_LinkedShaders[i]->ir);
+      if (ctx->ShaderCompilerOptions[i].LowerClipDistance) {
+         lower_clip_distance(prog->_LinkedShaders[i]);
+      }
 
       unsigned max_unroll = ctx->ShaderCompilerOptions[i].MaxUnrollIterations;
 
@@ -2577,6 +2852,19 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
 	 ;
    }
 
+   /* Mark all generic shader inputs and outputs as unpaired. */
+   if (prog->_LinkedShaders[MESA_SHADER_VERTEX] != NULL) {
+      link_invalidate_variable_locations(
+            prog->_LinkedShaders[MESA_SHADER_VERTEX],
+            VERT_ATTRIB_GENERIC0, VERT_RESULT_VAR0);
+   }
+   /* FINISHME: Geometry shaders not implemented yet */
+   if (prog->_LinkedShaders[MESA_SHADER_FRAGMENT] != NULL) {
+      link_invalidate_variable_locations(
+            prog->_LinkedShaders[MESA_SHADER_FRAGMENT],
+            FRAG_ATTRIB_VAR0, FRAG_RESULT_DATA0);
+   }
+
    /* FINISHME: The value of the max_attribute_index parameter is
     * FINISHME: implementation dependent based on the value of
     * FINISHME: GL_MAX_VERTEX_ATTRIBS.  GL_MAX_VERTEX_ATTRIBS must be
@@ -2623,7 +2911,7 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
 	 continue;
 
       if (!assign_varying_locations(
-             ctx, prog, prog->_LinkedShaders[prev], prog->_LinkedShaders[i],
+				    ctx, mem_ctx, prog, prog->_LinkedShaders[prev], prog->_LinkedShaders[i],
              i == MESA_SHADER_FRAGMENT ? num_tfeedback_decls : 0,
              tfeedback_decls))
 	 goto done;
@@ -2636,7 +2924,7 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
        * locations for use by transform feedback.
        */
       if (!assign_varying_locations(
-             ctx, prog, prog->_LinkedShaders[prev], NULL, num_tfeedback_decls,
+				    ctx, mem_ctx, prog, prog->_LinkedShaders[prev], NULL, num_tfeedback_decls,
              tfeedback_decls))
          goto done;
    }
diff --git a/mesalib/src/glsl/lower_clip_distance.cpp b/mesalib/src/glsl/lower_clip_distance.cpp
index 031691471..09bdc36e1 100644
--- a/mesalib/src/glsl/lower_clip_distance.cpp
+++ b/mesalib/src/glsl/lower_clip_distance.cpp
@@ -45,6 +45,7 @@
  * LowerClipDistance flag in gl_shader_compiler_options to true.
  */
 
+#include "glsl_symbol_table.h"
 #include "ir_hierarchical_visitor.h"
 #include "ir.h"
 
@@ -334,11 +335,14 @@ lower_clip_distance_visitor::visit_leave(ir_call *ir)
 
 
 bool
-lower_clip_distance(exec_list *instructions)
+lower_clip_distance(gl_shader *shader)
 {
    lower_clip_distance_visitor v;
 
-   visit_list_elements(&v, instructions);
+   visit_list_elements(&v, shader->ir);
+
+   if (v.new_clip_distance_var)
+      shader->symbols->add_variable(v.new_clip_distance_var);
 
    return v.progress;
 }
diff --git a/mesalib/src/glsl/lower_packed_varyings.cpp b/mesalib/src/glsl/lower_packed_varyings.cpp
new file mode 100644
index 000000000..09c551c4e
--- /dev/null
+++ b/mesalib/src/glsl/lower_packed_varyings.cpp
@@ -0,0 +1,364 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * 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.
+ */
+
+/**
+ * \file lower_varyings_to_packed.cpp
+ *
+ * This lowering pass generates GLSL code that manually packs varyings into
+ * vec4 slots, for the benefit of back-ends that don't support packed varyings
+ * natively.
+ *
+ * For example, the following shader:
+ *
+ *   out mat3x2 foo;  // location=4, location_frac=0
+ *   out vec3 bar[2]; // location=5, location_frac=2
+ *
+ *   main()
+ *   {
+ *     ...
+ *   }
+ *
+ * Is rewritten to:
+ *
+ *   mat3x2 foo;
+ *   vec3 bar[2];
+ *   out vec4 packed4; // location=4, location_frac=0
+ *   out vec4 packed5; // location=5, location_frac=0
+ *   out vec4 packed6; // location=6, location_frac=0
+ *
+ *   main()
+ *   {
+ *     ...
+ *     packed4.xy = foo[0];
+ *     packed4.zw = foo[1];
+ *     packed5.xy = foo[2];
+ *     packed5.zw = bar[0].xy;
+ *     packed6.x = bar[0].z;
+ *     packed6.yzw = bar[1];
+ *   }
+ *
+ * This lowering pass properly handles "double parking" of a varying vector
+ * across two varying slots.  For example, in the code above, two of the
+ * components of bar[0] are stored in packed5, and the remaining component is
+ * stored in packed6.
+ *
+ * Note that in theory, the extra instructions may cause some loss of
+ * performance.  However, hopefully in most cases the performance loss will
+ * either be absorbed by a later optimization pass, or it will be offset by
+ * memory bandwidth savings (because fewer varyings are used).
+ */
+
+#include "glsl_symbol_table.h"
+#include "ir.h"
+#include "ir_optimization.h"
+
+/**
+ * Visitor that performs varying packing.  For each varying declared in the
+ * shader, this visitor determines whether it needs to be packed.  If so, it
+ * demotes it to an ordinary global, creates new packed varyings, and
+ * generates assignments to convert between the original varying and the
+ * packed varying.
+ */
+class lower_packed_varyings_visitor
+{
+public:
+   lower_packed_varyings_visitor(void *mem_ctx, unsigned location_base,
+                                 unsigned locations_used,
+                                 ir_variable_mode mode,
+                                 exec_list *main_instructions);
+
+   void run(exec_list *instructions);
+
+private:
+   unsigned lower_rvalue(ir_rvalue *rvalue, unsigned fine_location,
+                         ir_variable *unpacked_var, const char *name);
+   unsigned lower_arraylike(ir_rvalue *rvalue, unsigned array_size,
+                            unsigned fine_location,
+                            ir_variable *unpacked_var, const char *name);
+   ir_variable *get_packed_varying(unsigned location,
+                                   ir_variable *unpacked_var,
+                                   const char *name);
+   bool needs_lowering(ir_variable *var);
+
+   /**
+    * Memory context used to allocate new instructions for the shader.
+    */
+   void * const mem_ctx;
+
+   /**
+    * Location representing the first generic varying slot for this shader
+    * stage (e.g. VERT_RESULT_VAR0 if we are packing vertex shader outputs).
+    * Varyings whose location is less than this value are assumed to
+    * correspond to special fixed function hardware, so they are not lowered.
+    */
+   const unsigned location_base;
+
+   /**
+    * Number of generic varying slots which are used by this shader.  This is
+    * used to allocate temporary intermediate data structures.  If any any
+    * varying used by this shader has a location greater than or equal to
+    * location_base + locations_used, an assertion will fire.
+    */
+   const unsigned locations_used;
+
+   /**
+    * Array of pointers to the packed varyings that have been created for each
+    * generic varying slot.  NULL entries in this array indicate varying slots
+    * for which a packed varying has not been created yet.
+    */
+   ir_variable **packed_varyings;
+
+   /**
+    * Type of varying which is being lowered in this pass (either ir_var_in or
+    * ir_var_out).
+    */
+   const ir_variable_mode mode;
+
+   /**
+    * List of instructions corresponding to the main() function.  This is
+    * where we add instructions to pack or unpack the varyings.
+    */
+   exec_list *main_instructions;
+};
+
+lower_packed_varyings_visitor::lower_packed_varyings_visitor(
+      void *mem_ctx, unsigned location_base, unsigned locations_used,
+      ir_variable_mode mode, exec_list *main_instructions)
+   : mem_ctx(mem_ctx),
+     location_base(location_base),
+     locations_used(locations_used),
+     packed_varyings((ir_variable **)
+                     rzalloc_array_size(mem_ctx, sizeof(*packed_varyings),
+                                        locations_used)),
+     mode(mode),
+     main_instructions(main_instructions)
+{
+}
+
+void
+lower_packed_varyings_visitor::run(exec_list *instructions)
+{
+   foreach_list (node, instructions) {
+      ir_variable *var = ((ir_instruction *) node)->as_variable();
+      if (var == NULL)
+         continue;
+
+      if (var->mode != this->mode ||
+          var->location < (int) this->location_base ||
+          !this->needs_lowering(var))
+         continue;
+
+      /* Change the old varying into an ordinary global. */
+      var->mode = ir_var_auto;
+
+      /* Create a reference to the old varying. */
+      ir_dereference_variable *deref
+         = new(this->mem_ctx) ir_dereference_variable(var);
+
+      /* Recursively pack or unpack it. */
+      this->lower_rvalue(deref, var->location * 4 + var->location_frac, var,
+                         var->name);
+   }
+}
+
+/**
+ * Recursively pack or unpack the given varying (or portion of a varying) by
+ * traversing all of its constituent vectors.
+ *
+ * \param fine_location is the location where the first constituent vector
+ * should be packed--the word "fine" indicates that this location is expressed
+ * in multiples of a float, rather than multiples of a vec4 as is used
+ * elsewhere in Mesa.
+ *
+ * \return the location where the next constituent vector (after this one)
+ * should be packed.
+ */
+unsigned
+lower_packed_varyings_visitor::lower_rvalue(ir_rvalue *rvalue,
+                                            unsigned fine_location,
+                                            ir_variable *unpacked_var,
+                                            const char *name)
+{
+   /* FINISHME: Support for "varying" records in GLSL 1.50. */
+   assert(!rvalue->type->is_record());
+
+   if (rvalue->type->is_array()) {
+      /* Arrays are packed/unpacked by considering each array element in
+       * sequence.
+       */
+      return this->lower_arraylike(rvalue, rvalue->type->array_size(),
+                                   fine_location, unpacked_var, name);
+   } else if (rvalue->type->is_matrix()) {
+      /* Matrices are packed/unpacked by considering each column vector in
+       * sequence.
+       */
+      return this->lower_arraylike(rvalue, rvalue->type->matrix_columns,
+                                   fine_location, unpacked_var, name);
+   } else if (rvalue->type->vector_elements + fine_location % 4 > 4) {
+      /* This vector is going to be "double parked" across two varying slots,
+       * so handle it as two separate assignments.
+       */
+      unsigned left_components = 4 - fine_location % 4;
+      unsigned right_components
+         = rvalue->type->vector_elements - left_components;
+      unsigned left_swizzle_values[4] = { 0, 0, 0, 0 };
+      unsigned right_swizzle_values[4] = { 0, 0, 0, 0 };
+      char left_swizzle_name[4] = { 0, 0, 0, 0 };
+      char right_swizzle_name[4] = { 0, 0, 0, 0 };
+      for (unsigned i = 0; i < left_components; i++) {
+         left_swizzle_values[i] = i;
+         left_swizzle_name[i] = "xyzw"[i];
+      }
+      for (unsigned i = 0; i < right_components; i++) {
+         right_swizzle_values[i] = i + left_components;
+         right_swizzle_name[i] = "xyzw"[i + left_components];
+      }
+      ir_swizzle *left_swizzle = new(this->mem_ctx)
+         ir_swizzle(rvalue, left_swizzle_values, left_components);
+      ir_swizzle *right_swizzle = new(this->mem_ctx)
+         ir_swizzle(rvalue->clone(this->mem_ctx, NULL), right_swizzle_values,
+                    right_components);
+      char *left_name
+         = ralloc_asprintf(this->mem_ctx, "%s.%s", name, left_swizzle_name);
+      char *right_name
+         = ralloc_asprintf(this->mem_ctx, "%s.%s", name, right_swizzle_name);
+      fine_location = this->lower_rvalue(left_swizzle, fine_location,
+                                         unpacked_var, left_name);
+      return this->lower_rvalue(right_swizzle, fine_location, unpacked_var,
+                                right_name);
+   } else {
+      /* No special handling is necessary; pack the rvalue into the
+       * varying.
+       */
+      unsigned swizzle_values[4] = { 0, 0, 0, 0 };
+      unsigned components = rvalue->type->vector_elements;
+      unsigned location = fine_location / 4;
+      unsigned location_frac = fine_location % 4;
+      for (unsigned i = 0; i < components; ++i)
+         swizzle_values[i] = i + location_frac;
+      ir_dereference_variable *packed_deref = new(this->mem_ctx)
+         ir_dereference_variable(this->get_packed_varying(location,
+                                                          unpacked_var, name));
+      ir_swizzle *swizzle = new(this->mem_ctx)
+         ir_swizzle(packed_deref, swizzle_values, components);
+      if (this->mode == ir_var_out) {
+         ir_assignment *assignment = new(this->mem_ctx)
+            ir_assignment(swizzle, rvalue);
+         this->main_instructions->push_tail(assignment);
+      } else {
+         ir_assignment *assignment = new(this->mem_ctx)
+            ir_assignment(rvalue, swizzle);
+         this->main_instructions->push_head(assignment);
+      }
+      return fine_location + components;
+   }
+}
+
+/**
+ * Recursively pack or unpack a varying for which we need to iterate over its
+ * constituent elements, accessing each one using an ir_dereference_array.
+ * This takes care of both arrays and matrices, since ir_dereference_array
+ * treats a matrix like an array of its column vectors.
+ */
+unsigned
+lower_packed_varyings_visitor::lower_arraylike(ir_rvalue *rvalue,
+                                               unsigned array_size,
+                                               unsigned fine_location,
+                                               ir_variable *unpacked_var,
+                                               const char *name)
+{
+   for (unsigned i = 0; i < array_size; i++) {
+      if (i != 0)
+         rvalue = rvalue->clone(this->mem_ctx, NULL);
+      ir_constant *constant = new(this->mem_ctx) ir_constant(i);
+      ir_dereference_array *dereference_array = new(this->mem_ctx)
+         ir_dereference_array(rvalue, constant);
+      char *subscripted_name
+         = ralloc_asprintf(this->mem_ctx, "%s[%d]", name, i);
+      fine_location = this->lower_rvalue(dereference_array, fine_location,
+                                         unpacked_var, subscripted_name);
+   }
+   return fine_location;
+}
+
+/**
+ * Retrieve the packed varying corresponding to the given varying location.
+ * If no packed varying has been created for the given varying location yet,
+ * create it and add it to the shader before returning it.
+ *
+ * The newly created varying inherits its base type (float, uint, or int) and
+ * interpolation parameters from \c unpacked_var.
+ */
+ir_variable *
+lower_packed_varyings_visitor::get_packed_varying(unsigned location,
+                                                  ir_variable *unpacked_var,
+                                                  const char *name)
+{
+   unsigned slot = location - this->location_base;
+   assert(slot < locations_used);
+   if (this->packed_varyings[slot] == NULL) {
+      char *packed_name = ralloc_asprintf(this->mem_ctx, "packed:%s", name);
+      const glsl_type *packed_type = glsl_type::get_instance(
+            unpacked_var->type->get_scalar_type()->base_type, 4, 1);
+      ir_variable *packed_var = new(this->mem_ctx)
+         ir_variable(packed_type, packed_name, this->mode);
+      packed_var->centroid = unpacked_var->centroid;
+      packed_var->interpolation = unpacked_var->interpolation;
+      packed_var->location = location;
+      unpacked_var->insert_before(packed_var);
+      this->packed_varyings[slot] = packed_var;
+   } else {
+      ralloc_asprintf_append((char **) &this->packed_varyings[slot]->name,
+                             ",%s", name);
+   }
+   return this->packed_varyings[slot];
+}
+
+bool
+lower_packed_varyings_visitor::needs_lowering(ir_variable *var)
+{
+   /* Things composed of vec4's don't need lowering.  Everything else does. */
+   const glsl_type *type = var->type;
+   if (type->is_array())
+      type = type->fields.array;
+   if (type->vector_elements == 4)
+      return false;
+   return true;
+}
+
+void
+lower_packed_varyings(void *mem_ctx, unsigned location_base,
+                      unsigned locations_used, ir_variable_mode mode,
+                      gl_shader *shader)
+{
+   exec_list *instructions = shader->ir;
+   ir_function *main_func = shader->symbols->get_function("main");
+   exec_list void_parameters;
+   ir_function_signature *main_func_sig
+      = main_func->matching_signature(&void_parameters);
+   exec_list *main_instructions = &main_func_sig->body;
+   lower_packed_varyings_visitor visitor(mem_ctx, location_base,
+                                         locations_used, mode,
+                                         main_instructions);
+   visitor.run(instructions);
+}
diff --git a/mesalib/src/mapi/glapi/gen/gl_genexec.py b/mesalib/src/mapi/glapi/gen/gl_genexec.py
index 593d1955b..da9ae716a 100644
--- a/mesalib/src/mapi/glapi/gen/gl_genexec.py
+++ b/mesalib/src/mapi/glapi/gen/gl_genexec.py
@@ -22,7 +22,7 @@
 # IN THE SOFTWARE.
 
 # This script generates the file api_exec.c, which contains
-# _mesa_create_exec_table().  It is responsible for populating all
+# _mesa_initialize_exec_table().  It is responsible for populating all
 # entries in the "exec" dispatch table that aren't dynamic.
 
 import collections
@@ -112,29 +112,26 @@ header = """/**
 
 
 /**
- * Initialize a dispatch table with pointers to Mesa's immediate-mode
- * commands.
+ * Initialize a context's exec table with pointers to Mesa's supported
+ * GL functions.
  *
- * Pointers to glBegin()/glEnd() object commands and a few others
- * are provided via the GLvertexformat interface.
+ * This function depends on ctx->Version.
  *
  * \param ctx  GL context to which \c exec belongs.
- * \param exec dispatch table.
  */
-struct _glapi_table *
-_mesa_create_exec_table(struct gl_context *ctx)
+void
+_mesa_initialize_exec_table(struct gl_context *ctx)
 {
    struct _glapi_table *exec;
 
-   exec = _mesa_alloc_dispatch_table(_gloffset_COUNT);
-   if (exec == NULL)
-      return NULL;
+   exec = ctx->Exec;
+   assert(exec != NULL);
 
+   assert(ctx->Version > 0);
 """
 
 
 footer = """
-   return exec;
 }
 """
 
diff --git a/mesalib/src/mesa/Android.libmesa_glsl_utils.mk b/mesalib/src/mesa/Android.libmesa_glsl_utils.mk
index 9beeda57f..9c5f3493c 100644
--- a/mesalib/src/mesa/Android.libmesa_glsl_utils.mk
+++ b/mesalib/src/mesa/Android.libmesa_glsl_utils.mk
@@ -35,6 +35,8 @@ include $(CLEAR_VARS)
 
 LOCAL_MODULE := libmesa_glsl_utils
 
+LOCAL_C_INCLUDES := $(MESA_TOP)/src/glsl
+
 LOCAL_SRC_FILES := \
 	main/hash_table.c \
 	program/prog_hash_table.c \
@@ -52,6 +54,8 @@ include $(CLEAR_VARS)
 LOCAL_MODULE := libmesa_glsl_utils
 LOCAL_IS_HOST_MODULE := true
 
+LOCAL_C_INCLUDES := $(MESA_TOP)/src/glsl
+
 LOCAL_SRC_FILES := \
 	main/hash_table.c \
 	program/prog_hash_table.c \
diff --git a/mesalib/src/mesa/drivers/dri/swrast/swrast.c b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
index 2474ed88f..33420f78d 100644
--- a/mesalib/src/mesa/drivers/dri/swrast/swrast.c
+++ b/mesalib/src/mesa/drivers/dri/swrast/swrast.c
@@ -31,12 +31,15 @@
  * The back-buffer is allocated by the driver and is private.
  */
 
+#include "main/api_exec.h"
 #include "main/context.h"
 #include "main/extensions.h"
 #include "main/formats.h"
 #include "main/framebuffer.h"
 #include "main/imports.h"
 #include "main/renderbuffer.h"
+#include "main/version.h"
+#include "main/vtxfmt.h"
 #include "swrast/swrast.h"
 #include "swrast/s_renderbuffer.h"
 #include "swrast_setup/swrast_setup.h"
@@ -786,6 +789,11 @@ dri_create_context(gl_api api,
         break;
     }
 
+    _mesa_compute_version(mesaCtx);
+
+    _mesa_initialize_exec_table(mesaCtx);
+    _mesa_initialize_vbo_vtxfmt(mesaCtx);
+
     *error = __DRI_CTX_ERROR_SUCCESS;
     return GL_TRUE;
 
diff --git a/mesalib/src/mesa/drivers/windows/gdi/wmesa.c b/mesalib/src/mesa/drivers/windows/gdi/wmesa.c
index 50347cf77..af9ae6be6 100644
--- a/mesalib/src/mesa/drivers/windows/gdi/wmesa.c
+++ b/mesalib/src/mesa/drivers/windows/gdi/wmesa.c
@@ -12,6 +12,7 @@
 #include "main/framebuffer.h"
 #include "main/renderbuffer.h"
 #include "main/macros.h"
+#include "main/vtxfmt.h"
 #include "drivers/common/driverfuncs.h"
 #include "drivers/common/meta.h"
 #include "vbo/vbo.h"
@@ -637,6 +638,12 @@ WMesaContext WMesaCreateContext(HDC hDC,
     _swsetup_Wakeup(ctx);
     TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 
+    _mesa_compute_version(ctx);
+
+    /* Exec table initialization requires the version to be computed */
+    _mesa_initialize_exec_table(ctx);
+    _mesa_initialize_vbo_vtxfmt(ctx);
+
     return c;
 }
 
diff --git a/mesalib/src/mesa/main/api_exec.h b/mesalib/src/mesa/main/api_exec.h
index 7d37ff754..8292c12de 100644
--- a/mesalib/src/mesa/main/api_exec.h
+++ b/mesalib/src/mesa/main/api_exec.h
@@ -33,8 +33,8 @@ struct gl_context;
 extern struct _glapi_table *
 _mesa_alloc_dispatch_table(int size);
 
-extern struct _glapi_table *
-_mesa_create_exec_table(struct gl_context *ctx);
+extern void
+_mesa_initialize_exec_table(struct gl_context *ctx);
 
 
 #endif
diff --git a/mesalib/src/mesa/main/bufferobj.c b/mesalib/src/mesa/main/bufferobj.c
index 6733644b6..4a844308b 100644
--- a/mesalib/src/mesa/main/bufferobj.c
+++ b/mesalib/src/mesa/main/bufferobj.c
@@ -93,8 +93,8 @@ get_buffer_target(struct gl_context *ctx, GLenum target)
       }
       break;
    case GL_TEXTURE_BUFFER:
-      if (_mesa_is_desktop_gl(ctx)
-          && ctx->Extensions.ARB_texture_buffer_object) {
+      if (ctx->API == API_OPENGL_CORE &&
+          ctx->Extensions.ARB_texture_buffer_object) {
          return &ctx->Texture.BufferObject;
       }
       break;
diff --git a/mesalib/src/mesa/main/context.c b/mesalib/src/mesa/main/context.c
index fa552e818..fc2db1271 100644
--- a/mesalib/src/mesa/main/context.c
+++ b/mesalib/src/mesa/main/context.c
@@ -935,8 +935,8 @@ _mesa_initialize_context(struct gl_context *ctx,
       return GL_FALSE;
    }
 
-   /* setup the API dispatch tables */
-   ctx->Exec = _mesa_create_exec_table(ctx);
+   /* setup the API dispatch tables with all nop functions */
+   ctx->Exec = _mesa_alloc_dispatch_table(_gloffset_COUNT);
 
    if (!ctx->Exec) {
       _mesa_reference_shared_state(ctx, &ctx->Shared, NULL);
@@ -971,7 +971,6 @@ _mesa_initialize_context(struct gl_context *ctx,
 	 return GL_FALSE;
       }
 
-      _mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt );
       /* fall-through */
    case API_OPENGL_CORE:
       break;
@@ -1462,7 +1461,7 @@ _mesa_make_current( struct gl_context *newCtx,
       }
 
       if (newCtx->FirstTimeCurrent) {
-         _mesa_compute_version(newCtx);
+         assert(newCtx->Version > 0);
 
          newCtx->Extensions.String = _mesa_make_extension_string(newCtx);
 
diff --git a/mesalib/src/mesa/main/extensions.c b/mesalib/src/mesa/main/extensions.c
index 11cbea2b4..98711b395 100644
--- a/mesalib/src/mesa/main/extensions.c
+++ b/mesalib/src/mesa/main/extensions.c
@@ -126,7 +126,8 @@ static const struct extension extension_table[] = {
    { "GL_ARB_shadow",                              o(ARB_shadow),                              GLL,            2001 },
    { "GL_ARB_sync",                                o(ARB_sync),                                GL,             2003 },
    { "GL_ARB_texture_border_clamp",                o(ARB_texture_border_clamp),                GLL,            2000 },
-   { "GL_ARB_texture_buffer_object",               o(ARB_texture_buffer_object),               GL,             2008 },
+   { "GL_ARB_texture_buffer_object",               o(ARB_texture_buffer_object),               GLC,            2008 },
+   { "GL_ARB_texture_buffer_object_rgb32",         o(ARB_texture_buffer_object_rgb32),         GLC,            2009 },
    { "GL_ARB_texture_compression",                 o(dummy_true),                              GLL,            2000 },
    { "GL_ARB_texture_compression_rgtc",            o(ARB_texture_compression_rgtc),            GL,             2004 },
    { "GL_ARB_texture_cube_map",                    o(ARB_texture_cube_map),                    GLL,            1999 },
diff --git a/mesalib/src/mesa/main/get.c b/mesalib/src/mesa/main/get.c
index 97dccd0ed..f3dbda2d3 100644
--- a/mesalib/src/mesa/main/get.c
+++ b/mesalib/src/mesa/main/get.c
@@ -129,6 +129,7 @@ enum value_extra {
    EXTRA_VERSION_31,
    EXTRA_VERSION_32,
    EXTRA_API_GL,
+   EXTRA_API_GL_CORE,
    EXTRA_API_ES2,
    EXTRA_NEW_BUFFERS, 
    EXTRA_NEW_FRAG_CLAMP,
@@ -283,6 +284,7 @@ static const int extra_GLSL_130[] = {
 };
 
 static const int extra_texture_buffer_object[] = {
+   EXTRA_API_GL_CORE,
    EXTRA_VERSION_31,
    EXT(ARB_texture_buffer_object),
    EXTRA_END
@@ -329,7 +331,6 @@ EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
 EXTRA_EXT(ARB_geometry_shader4);
 EXTRA_EXT(ARB_color_buffer_float);
 EXTRA_EXT(EXT_framebuffer_sRGB);
-EXTRA_EXT(ARB_texture_buffer_object);
 EXTRA_EXT(OES_EGL_image_external);
 EXTRA_EXT(ARB_blend_func_extended);
 EXTRA_EXT(ARB_uniform_buffer_object);
@@ -879,6 +880,12 @@ check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d
 	    enabled++;
 	 }
 	 break;
+      case EXTRA_API_GL_CORE:
+	 if (ctx->API == API_OPENGL_CORE) {
+	    total++;
+	    enabled++;
+	 }
+	 break;
       case EXTRA_NEW_BUFFERS:
 	 if (ctx->NewState & _NEW_BUFFERS)
 	    _mesa_update_state(ctx);
diff --git a/mesalib/src/mesa/main/glformats.c b/mesalib/src/mesa/main/glformats.c
index fefa9c441..f33a0503d 100644
--- a/mesalib/src/mesa/main/glformats.c
+++ b/mesalib/src/mesa/main/glformats.c
@@ -308,6 +308,48 @@ _mesa_bytes_per_pixel(GLenum format, GLenum type)
 
 
 /**
+ * Get the number of bytes for a vertex attrib with the given number of
+ * components and type.
+ *
+ * \param comps number of components.
+ * \param type data type.
+ *
+ * \return bytes per attribute, or -1 if a bad comps/type combination was given.
+ */
+GLint
+_mesa_bytes_per_vertex_attrib(GLint comps, GLenum type)
+{
+   switch (type) {
+   case GL_BYTE:
+   case GL_UNSIGNED_BYTE:
+      return comps * sizeof(GLubyte);
+   case GL_SHORT:
+   case GL_UNSIGNED_SHORT:
+      return comps * sizeof(GLshort);
+   case GL_INT:
+   case GL_UNSIGNED_INT:
+      return comps * sizeof(GLint);
+   case GL_FLOAT:
+      return comps * sizeof(GLfloat);
+   case GL_HALF_FLOAT_ARB:
+      return comps * sizeof(GLhalfARB);
+   case GL_DOUBLE:
+      return comps * sizeof(GLdouble);
+   case GL_FIXED:
+      return comps * sizeof(GLfixed);
+   case GL_INT_2_10_10_10_REV:
+   case GL_UNSIGNED_INT_2_10_10_10_REV:
+      if (comps == 4)
+         return sizeof(GLuint);
+      else
+         return -1;
+   default:
+      return -1;
+   }
+}
+
+
+/**
  * Test if the given format is an integer (non-normalized) format.
  */
 GLboolean
diff --git a/mesalib/src/mesa/main/glformats.h b/mesalib/src/mesa/main/glformats.h
index 5d0995140..ccfb5e13c 100644
--- a/mesalib/src/mesa/main/glformats.h
+++ b/mesalib/src/mesa/main/glformats.h
@@ -49,6 +49,9 @@ _mesa_components_in_format( GLenum format );
 extern GLint
 _mesa_bytes_per_pixel( GLenum format, GLenum type );
 
+extern GLint
+_mesa_bytes_per_vertex_attrib(GLint comps, GLenum type);
+
 extern GLboolean
 _mesa_is_type_integer(GLenum type);
 
diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h
index 11a832281..67eaadd9f 100644
--- a/mesalib/src/mesa/main/mtypes.h
+++ b/mesalib/src/mesa/main/mtypes.h
@@ -2928,6 +2928,17 @@ struct gl_constants
 
    /** GL_ARB_map_buffer_alignment */
    GLuint MinMapBufferAlignment;
+
+   /**
+    * Disable varying packing.  This is out of spec, but potentially useful
+    * for older platforms that supports a limited number of texture
+    * indirections--on these platforms, unpacking the varyings in the fragment
+    * shader increases the number of texture indirections by 1, which might
+    * make some shaders not executable at all.
+    *
+    * Drivers that support transform feedback must set this value to GL_FALSE.
+    */
+   GLboolean DisableVaryingPacking;
 };
 
 
@@ -2978,6 +2989,7 @@ struct gl_extensions
    GLboolean ARB_sync;
    GLboolean ARB_texture_border_clamp;
    GLboolean ARB_texture_buffer_object;
+   GLboolean ARB_texture_buffer_object_rgb32;
    GLboolean ARB_texture_compression_rgtc;
    GLboolean ARB_texture_cube_map;
    GLboolean ARB_texture_cube_map_array;
diff --git a/mesalib/src/mesa/main/texcompress.c b/mesalib/src/mesa/main/texcompress.c
index 372a483fa..33c580a88 100644
--- a/mesalib/src/mesa/main/texcompress.c
+++ b/mesalib/src/mesa/main/texcompress.c
@@ -42,7 +42,6 @@
 #include "texcompress_rgtc.h"
 #include "texcompress_s3tc.h"
 #include "texcompress_etc.h"
-#include "swrast/s_context.h"
 
 
 /**
@@ -523,129 +522,67 @@ _mesa_compressed_image_address(GLint col, GLint row, GLint img,
 
 
 /**
- * Decompress a compressed texture image, returning a GL_RGBA/GL_FLOAT image.
- * \param srcRowStride  stride in bytes between rows of blocks in the
- *                      compressed source image.
+ * Return a texel-fetch function for the given format, or NULL if
+ * invalid format.
  */
-void
-_mesa_decompress_image(gl_format format, GLuint width, GLuint height,
-                       const GLubyte *src, GLint srcRowStride,
-                       GLfloat *dest)
+compressed_fetch_func
+_mesa_get_compressed_fetch_func(gl_format format)
 {
-   void (*fetch)(const struct swrast_texture_image *texImage,
-                 GLint i, GLint j, GLint k, GLfloat *texel);
-   struct swrast_texture_image texImage;  /* dummy teximage */
-   GLuint i, j;
-   GLuint bytes, bw, bh;
-
-   bytes = _mesa_get_format_bytes(format);
-   _mesa_get_format_block_size(format, &bw, &bh);
-
-   /* setup dummy texture image info */
-   memset(&texImage, 0, sizeof(texImage));
-   texImage.Map = (void *) src;
-
-   /* XXX This line is a bit of a hack to adapt to the row stride
-    * convention used by the texture decompression functions.
-    */
-   texImage.RowStride = srcRowStride * bh / bytes;
-
    switch (format) {
-   /* DXT formats */
    case MESA_FORMAT_RGB_DXT1:
-      fetch = _mesa_fetch_texel_rgb_dxt1;
-      break;
    case MESA_FORMAT_RGBA_DXT1:
-      fetch = _mesa_fetch_texel_rgba_dxt1;
-      break;
    case MESA_FORMAT_RGBA_DXT3:
-      fetch = _mesa_fetch_texel_rgba_dxt3;
-      break;
    case MESA_FORMAT_RGBA_DXT5:
-      fetch = _mesa_fetch_texel_rgba_dxt5;
-      break;
-
-   /* FXT1 formats */
+      return _mesa_get_dxt_fetch_func(format);
    case MESA_FORMAT_RGB_FXT1:
-      fetch = _mesa_fetch_texel_2d_f_rgb_fxt1;
-      break;
    case MESA_FORMAT_RGBA_FXT1:
-      fetch = _mesa_fetch_texel_2d_f_rgba_fxt1;
-      break;
-
-   /* Red/RG formats */
+      return _mesa_get_fxt_fetch_func(format);
    case MESA_FORMAT_RED_RGTC1:
-      fetch = _mesa_fetch_texel_red_rgtc1;
-      break;
-   case MESA_FORMAT_SIGNED_RED_RGTC1:
-      fetch = _mesa_fetch_texel_signed_red_rgtc1;
-      break;
-   case MESA_FORMAT_RG_RGTC2:
-      fetch = _mesa_fetch_texel_rg_rgtc2;
-      break;
-   case MESA_FORMAT_SIGNED_RG_RGTC2:
-      fetch = _mesa_fetch_texel_signed_rg_rgtc2;
-      break;
-
-   /* L/LA formats */
    case MESA_FORMAT_L_LATC1:
-      fetch = _mesa_fetch_texel_l_latc1;
-      break;
+   case MESA_FORMAT_SIGNED_RED_RGTC1:
    case MESA_FORMAT_SIGNED_L_LATC1:
-      fetch = _mesa_fetch_texel_signed_l_latc1;
-      break;
+   case MESA_FORMAT_RG_RGTC2:
    case MESA_FORMAT_LA_LATC2:
-      fetch = _mesa_fetch_texel_la_latc2;
-      break;
+   case MESA_FORMAT_SIGNED_RG_RGTC2:
    case MESA_FORMAT_SIGNED_LA_LATC2:
-      fetch = _mesa_fetch_texel_signed_la_latc2;
-      break;
-
-   /* ETC1 formats */
+      return _mesa_get_compressed_rgtc_func(format);
    case MESA_FORMAT_ETC1_RGB8:
-      fetch = _mesa_fetch_texel_2d_f_etc1_rgb8;
-      break;
+      return _mesa_get_etc_fetch_func(format);
+   default:
+      return NULL;
+   }
+}
 
-   /* ETC2 formats */
-   case MESA_FORMAT_ETC2_RGB8:
-      fetch = _mesa_fetch_texel_2d_f_etc2_rgb8;
-      break;
-   case MESA_FORMAT_ETC2_SRGB8:
-      fetch = _mesa_fetch_texel_2d_f_etc2_srgb8;
-      break;
-   case MESA_FORMAT_ETC2_RGBA8_EAC:
-      fetch = _mesa_fetch_texel_2d_f_etc2_rgba8_eac;
-      break;
-   case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC:
-      fetch = _mesa_fetch_texel_2d_f_etc2_srgb8_alpha8_eac;
-      break;
-   case MESA_FORMAT_ETC2_R11_EAC:
-      fetch = _mesa_fetch_texel_2d_f_etc2_r11_eac;
-      break;
-   case MESA_FORMAT_ETC2_RG11_EAC:
-      fetch = _mesa_fetch_texel_2d_f_etc2_rg11_eac;
-      break;
-   case MESA_FORMAT_ETC2_SIGNED_R11_EAC:
-      fetch = _mesa_fetch_texel_2d_f_etc2_signed_r11_eac;
-      break;
-   case MESA_FORMAT_ETC2_SIGNED_RG11_EAC:
-      fetch = _mesa_fetch_texel_2d_f_etc2_signed_rg11_eac;
-      break;
-   case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1:
-      fetch = _mesa_fetch_texel_2d_f_etc2_rgb8_punchthrough_alpha1;
-      break;
-   case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1:
-      fetch = _mesa_fetch_texel_2d_f_etc2_srgb8_punchthrough_alpha1;
-      break;
 
-   default:
+/**
+ * Decompress a compressed texture image, returning a GL_RGBA/GL_FLOAT image.
+ * \param srcRowStride  stride in bytes between rows of blocks in the
+ *                      compressed source image.
+ */
+void
+_mesa_decompress_image(gl_format format, GLuint width, GLuint height,
+                       const GLubyte *src, GLint srcRowStride,
+                       GLfloat *dest)
+{
+   compressed_fetch_func fetch;
+   GLuint i, j;
+   GLuint bytes, bw, bh;
+   GLint stride;
+
+   bytes = _mesa_get_format_bytes(format);
+   _mesa_get_format_block_size(format, &bw, &bh);
+
+   fetch = _mesa_get_compressed_fetch_func(format);
+   if (!fetch) {
       _mesa_problem(NULL, "Unexpected format in _mesa_decompress_image()");
       return;
    }
+ 
+   stride = srcRowStride * bh / bytes;
 
    for (j = 0; j < height; j++) {
       for (i = 0; i < width; i++) {
-         fetch(&texImage, i, j, 0, dest);
+         fetch(src, NULL, stride, i, j, 0, dest);
          dest += 4;
       }
    }
diff --git a/mesalib/src/mesa/main/texcompress.h b/mesalib/src/mesa/main/texcompress.h
index 359b9168a..b45e7cf1b 100644
--- a/mesalib/src/mesa/main/texcompress.h
+++ b/mesalib/src/mesa/main/texcompress.h
@@ -48,6 +48,18 @@ _mesa_compressed_image_address(GLint col, GLint row, GLint img,
                                gl_format mesaFormat,
                                GLsizei width, const GLubyte *image);
 
+
+/** A function to fetch one texel from a compressed texture */
+typedef void (*compressed_fetch_func)(const GLubyte *map,
+                                      const GLuint imageOffsets[],
+                                      GLint rowStride,
+                                      GLint i, GLint j, GLint k,
+                                      GLfloat *texel);
+
+extern compressed_fetch_func
+_mesa_get_compressed_fetch_func(gl_format format);
+
+
 extern void
 _mesa_decompress_image(gl_format format, GLuint width, GLuint height,
                        const GLubyte *src, GLint srcRowStride,
diff --git a/mesalib/src/mesa/main/texcompress_etc.c b/mesalib/src/mesa/main/texcompress_etc.c
index 73d2fa4fe..7ad4ddeb6 100644
--- a/mesalib/src/mesa/main/texcompress_etc.c
+++ b/mesalib/src/mesa/main/texcompress_etc.c
@@ -43,9 +43,9 @@
 #include "texcompress_etc.h"
 #include "texstore.h"
 #include "macros.h"
-#include "swrast/s_context.h"
 #include "format_unpack.h"
 
+
 struct etc2_block {
    int distance;
    uint64_t pixel_indices[2];
@@ -113,25 +113,6 @@ _mesa_texstore_etc1_rgb8(TEXSTORE_PARAMS)
    return GL_FALSE;
 }
 
-void
-_mesa_fetch_texel_2d_f_etc1_rgb8(const struct swrast_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   struct etc1_block block;
-   GLubyte dst[3];
-   const GLubyte *src;
-
-   src = (const GLubyte *) texImage->Map +
-      (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
-
-   etc1_parse_block(&block, src);
-   etc1_fetch_texel(&block, i % 4, j % 4, dst);
-
-   texel[RCOMP] = UBYTE_TO_FLOAT(dst[0]);
-   texel[GCOMP] = UBYTE_TO_FLOAT(dst[1]);
-   texel[BCOMP] = UBYTE_TO_FLOAT(dst[2]);
-   texel[ACOMP] = 1.0f;
-}
 
 /**
  * Decode texture data in format `MESA_FORMAT_ETC1_RGB8` to
@@ -231,7 +212,7 @@ etc2_base_color1_h_mode(const uint8_t *in, GLuint index)
       break;
    }
    return ((x << 4) | (x & 0xf));
- }
+}
 
 static uint8_t
 etc2_base_color2_h_mode(const uint8_t *in, GLuint index)
@@ -253,7 +234,7 @@ etc2_base_color2_h_mode(const uint8_t *in, GLuint index)
       break;
    }
    return ((x << 4) | (x & 0xf));
- }
+}
 
 static uint8_t
 etc2_base_color_o_planar(const uint8_t *in, GLuint index)
@@ -468,7 +449,7 @@ etc2_rgb8_parse_block(struct etc2_block *block,
           */
          block->base_colors[0][i] = etc1_base_color_diff_hi(src[i]);
          block->base_colors[1][i] = etc1_base_color_diff_lo(src[i]);
-     }
+      }
    }
 
    if (block->is_ind_mode || block->is_diff_mode) {
@@ -756,10 +737,10 @@ etc2_unpack_srgb8(uint8_t *dst_row,
             }
          }
          src += bs;
-       }
+      }
 
       src_row += src_stride;
-    }
+   }
 }
 
 static void
@@ -792,10 +773,10 @@ etc2_unpack_rgba8(uint8_t *dst_row,
             }
          }
          src += bs;
-       }
+      }
 
       src_row += src_stride;
-    }
+   }
 }
 
 static void
@@ -836,10 +817,10 @@ etc2_unpack_srgb8_alpha8(uint8_t *dst_row,
             }
          }
          src += bs;
-       }
+      }
 
       src_row += src_stride;
-    }
+   }
 }
 
 static void
@@ -871,10 +852,10 @@ etc2_unpack_r11(uint8_t *dst_row,
             }
          }
          src += bs;
-       }
+      }
 
       src_row += src_stride;
-    }
+   }
 }
 
 static void
@@ -919,10 +900,10 @@ etc2_unpack_rg11(uint8_t *dst_row,
             }
          }
          src += bs;
-       }
+      }
 
       src_row += src_stride;
-    }
+   }
 }
 
 static void
@@ -955,10 +936,10 @@ etc2_unpack_signed_r11(uint8_t *dst_row,
             }
          }
          src += bs;
-       }
+      }
 
       src_row += src_stride;
-    }
+   }
 }
 
 static void
@@ -1003,10 +984,10 @@ etc2_unpack_signed_rg11(uint8_t *dst_row,
             }
          }
          src += bs;
-       }
+      }
 
       src_row += src_stride;
-    }
+   }
 }
 
 static void
@@ -1166,16 +1147,112 @@ _mesa_texstore_etc2_srgb8_punchthrough_alpha1(TEXSTORE_PARAMS)
    return GL_FALSE;
 }
 
+
+/**
+ * Decode texture data in any one of following formats:
+ * `MESA_FORMAT_ETC2_RGB8`
+ * `MESA_FORMAT_ETC2_SRGB8`
+ * `MESA_FORMAT_ETC2_RGBA8_EAC`
+ * `MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC`
+ * `MESA_FORMAT_ETC2_R11_EAC`
+ * `MESA_FORMAT_ETC2_RG11_EAC`
+ * `MESA_FORMAT_ETC2_SIGNED_R11_EAC`
+ * `MESA_FORMAT_ETC2_SIGNED_RG11_EAC`
+ * `MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1`
+ * `MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1`
+ *
+ * The size of the source data must be a multiple of the ETC2 block size
+ * even if the texture image's dimensions are not aligned to 4.
+ *
+ * \param src_width in pixels
+ * \param src_height in pixels
+ * \param dst_stride in bytes
+ */
+
 void
-_mesa_fetch_texel_2d_f_etc2_rgb8(const struct swrast_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel)
+_mesa_unpack_etc2_format(uint8_t *dst_row,
+                         unsigned dst_stride,
+                         const uint8_t *src_row,
+                         unsigned src_stride,
+                         unsigned src_width,
+                         unsigned src_height,
+                         gl_format format)
+{
+   if (format == MESA_FORMAT_ETC2_RGB8)
+      etc2_unpack_rgb8(dst_row, dst_stride,
+                       src_row, src_stride,
+                       src_width, src_height);
+   else if (format == MESA_FORMAT_ETC2_SRGB8)
+      etc2_unpack_srgb8(dst_row, dst_stride,
+                        src_row, src_stride,
+                        src_width, src_height);
+   else if (format == MESA_FORMAT_ETC2_RGBA8_EAC)
+      etc2_unpack_rgba8(dst_row, dst_stride,
+                        src_row, src_stride,
+                        src_width, src_height);
+   else if (format == MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC)
+      etc2_unpack_srgb8_alpha8(dst_row, dst_stride,
+                               src_row, src_stride,
+                               src_width, src_height);
+   else if (format == MESA_FORMAT_ETC2_R11_EAC)
+      etc2_unpack_r11(dst_row, dst_stride,
+                      src_row, src_stride,
+                      src_width, src_height);
+   else if (format == MESA_FORMAT_ETC2_RG11_EAC)
+      etc2_unpack_rg11(dst_row, dst_stride,
+                       src_row, src_stride,
+                       src_width, src_height);
+   else if (format == MESA_FORMAT_ETC2_SIGNED_R11_EAC)
+      etc2_unpack_signed_r11(dst_row, dst_stride,
+                             src_row, src_stride,
+                             src_width, src_height);
+   else if (format == MESA_FORMAT_ETC2_SIGNED_RG11_EAC)
+      etc2_unpack_signed_rg11(dst_row, dst_stride,
+                              src_row, src_stride,
+                              src_width, src_height);
+   else if (format == MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1)
+      etc2_unpack_rgb8_punchthrough_alpha1(dst_row, dst_stride,
+                                           src_row, src_stride,
+                                           src_width, src_height);
+   else if (format == MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1)
+      etc2_unpack_srgb8_punchthrough_alpha1(dst_row, dst_stride,
+                                            src_row, src_stride,
+                                            src_width, src_height);
+}
+
+
+
+static void
+fetch_etc1_rgb8(const GLubyte *map, const GLuint imageOffsets[],
+                GLint rowStride, GLint i, GLint j, GLint k,
+                GLfloat *texel)
+{
+   struct etc1_block block;
+   GLubyte dst[3];
+   const GLubyte *src;
+
+   src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+
+   etc1_parse_block(&block, src);
+   etc1_fetch_texel(&block, i % 4, j % 4, dst);
+
+   texel[RCOMP] = UBYTE_TO_FLOAT(dst[0]);
+   texel[GCOMP] = UBYTE_TO_FLOAT(dst[1]);
+   texel[BCOMP] = UBYTE_TO_FLOAT(dst[2]);
+   texel[ACOMP] = 1.0f;
+}
+
+
+static void
+fetch_etc2_rgb8(const GLubyte *map, const GLuint imageOffsets[],
+                GLint rowStride, GLint i, GLint j, GLint k,
+                GLfloat *texel)
 {
    struct etc2_block block;
    uint8_t dst[3];
    const uint8_t *src;
 
-   src = texImage->Map +
-      (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+   src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
 
    etc2_rgb8_parse_block(&block, src,
                          false /* punchthrough_alpha */);
@@ -1188,16 +1265,16 @@ _mesa_fetch_texel_2d_f_etc2_rgb8(const struct swrast_texture_image *texImage,
    texel[ACOMP] = 1.0f;
 }
 
-void
-_mesa_fetch_texel_2d_f_etc2_srgb8(const struct swrast_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_etc2_srgb8(const GLubyte *map, const GLuint imageOffsets[],
+                 GLint rowStride, GLint i, GLint j, GLint k,
+                 GLfloat *texel)
 {
    struct etc2_block block;
    uint8_t dst[3];
    const uint8_t *src;
 
-   src = texImage->Map +
-      (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+   src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
 
    etc2_rgb8_parse_block(&block, src,
                          false /* punchthrough_alpha */);
@@ -1210,16 +1287,16 @@ _mesa_fetch_texel_2d_f_etc2_srgb8(const struct swrast_texture_image *texImage,
    texel[ACOMP] = 1.0f;
 }
 
-void
-_mesa_fetch_texel_2d_f_etc2_rgba8_eac(const struct swrast_texture_image *texImage,
-                                      GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_etc2_rgba8_eac(const GLubyte *map, const GLuint imageOffsets[],
+                     GLint rowStride, GLint i, GLint j, GLint k,
+                     GLfloat *texel)
 {
    struct etc2_block block;
    uint8_t dst[4];
    const uint8_t *src;
 
-   src = texImage->Map +
-      (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
+   src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
 
    etc2_rgba8_parse_block(&block, src);
    etc2_rgba8_fetch_texel(&block, i % 4, j % 4, dst);
@@ -1230,18 +1307,16 @@ _mesa_fetch_texel_2d_f_etc2_rgba8_eac(const struct swrast_texture_image *texImag
    texel[ACOMP] = UBYTE_TO_FLOAT(dst[3]);
 }
 
-void
-_mesa_fetch_texel_2d_f_etc2_srgb8_alpha8_eac(const struct
-                                             swrast_texture_image *texImage,
-                                             GLint i, GLint j,
-                                             GLint k, GLfloat *texel)
+static void
+fetch_etc2_srgb8_alpha8_eac(const GLubyte *map, const GLuint imageOffsets[],
+                            GLint rowStride, GLint i, GLint j, GLint k,
+                            GLfloat *texel)
 {
    struct etc2_block block;
    uint8_t dst[4];
    const uint8_t *src;
 
-   src = texImage->Map +
-      (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
+   src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
 
    etc2_rgba8_parse_block(&block, src);
    etc2_rgba8_fetch_texel(&block, i % 4, j % 4, dst);
@@ -1252,16 +1327,16 @@ _mesa_fetch_texel_2d_f_etc2_srgb8_alpha8_eac(const struct
    texel[ACOMP] = UBYTE_TO_FLOAT(dst[3]);
 }
 
-void
-_mesa_fetch_texel_2d_f_etc2_r11_eac(const struct swrast_texture_image *texImage,
-                                    GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_etc2_r11_eac(const GLubyte *map, const GLuint imageOffsets[],
+                   GLint rowStride, GLint i, GLint j, GLint k,
+                   GLfloat *texel)
 {
    struct etc2_block block;
    GLushort dst;
    const uint8_t *src;
 
-   src = texImage->Map +
-      (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+   src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
 
    etc2_r11_parse_block(&block, src);
    etc2_r11_fetch_texel(&block, i % 4, j % 4, (uint8_t *)&dst);
@@ -1272,18 +1347,16 @@ _mesa_fetch_texel_2d_f_etc2_r11_eac(const struct swrast_texture_image *texImage,
    texel[ACOMP] = 1.0f;
 }
 
-void
-_mesa_fetch_texel_2d_f_etc2_rg11_eac(const struct
-                                     swrast_texture_image *texImage,
-                                     GLint i, GLint j,
-                                     GLint k, GLfloat *texel)
+static void
+fetch_etc2_rg11_eac(const GLubyte *map, const GLuint imageOffsets[],
+                    GLint rowStride, GLint i, GLint j, GLint k,
+                    GLfloat *texel)
 {
    struct etc2_block block;
    GLushort dst[2];
    const uint8_t *src;
 
-   src = texImage->Map +
-      (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
+   src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
 
    /* red component */
    etc2_r11_parse_block(&block, src);
@@ -1299,16 +1372,16 @@ _mesa_fetch_texel_2d_f_etc2_rg11_eac(const struct
    texel[ACOMP] = 1.0f;
 }
 
-void
-_mesa_fetch_texel_2d_f_etc2_signed_r11_eac(const struct swrast_texture_image *texImage,
-                                           GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_etc2_signed_r11_eac(const GLubyte *map, const GLuint imageOffsets[],
+                          GLint rowStride, GLint i, GLint j, GLint k,
+                          GLfloat *texel)
 {
    struct etc2_block block;
    GLushort dst;
    const uint8_t *src;
 
-   src = texImage->Map +
-      (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+   src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
 
    etc2_r11_parse_block(&block, src);
    etc2_signed_r11_fetch_texel(&block, i % 4, j % 4, (uint8_t *)&dst);
@@ -1319,16 +1392,16 @@ _mesa_fetch_texel_2d_f_etc2_signed_r11_eac(const struct swrast_texture_image *te
    texel[ACOMP] = 1.0f;
 }
 
-void
-_mesa_fetch_texel_2d_f_etc2_signed_rg11_eac(const struct swrast_texture_image *texImage,
-                                            GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_etc2_signed_rg11_eac(const GLubyte *map, const GLuint imageOffsets[],
+                           GLint rowStride, GLint i, GLint j, GLint k,
+                           GLfloat *texel)
 {
    struct etc2_block block;
    GLushort dst[2];
    const uint8_t *src;
 
-   src = texImage->Map +
-      (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
+   src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 16;
 
    /* red component */
    etc2_r11_parse_block(&block, src);
@@ -1344,18 +1417,17 @@ _mesa_fetch_texel_2d_f_etc2_signed_rg11_eac(const struct swrast_texture_image *t
    texel[ACOMP] = 1.0f;
 }
 
-void
-_mesa_fetch_texel_2d_f_etc2_rgb8_punchthrough_alpha1(
-   const struct swrast_texture_image *texImage,
-   GLint i, GLint j,
-   GLint k, GLfloat *texel)
+static void
+fetch_etc2_rgb8_punchthrough_alpha1(const GLubyte *map,
+                                    const GLuint imageOffsets[],
+                                    GLint rowStride, GLint i, GLint j, GLint k,
+                                    GLfloat *texel)
 {
    struct etc2_block block;
    uint8_t dst[4];
    const uint8_t *src;
 
-   src = texImage->Map +
-      (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+   src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
 
    etc2_rgb8_parse_block(&block, src,
                          true /* punchthrough alpha */);
@@ -1367,18 +1439,18 @@ _mesa_fetch_texel_2d_f_etc2_rgb8_punchthrough_alpha1(
    texel[ACOMP] = UBYTE_TO_FLOAT(dst[3]);
 }
 
-void
-_mesa_fetch_texel_2d_f_etc2_srgb8_punchthrough_alpha1(
-   const struct swrast_texture_image *texImage,
-   GLint i, GLint j,
-   GLint k, GLfloat *texel)
+static void
+fetch_etc2_srgb8_punchthrough_alpha1(const GLubyte *map,
+                                     const GLuint imageOffsets[],
+                                     GLint rowStride,
+                                     GLint i, GLint j, GLint k,
+                                     GLfloat *texel)
 {
    struct etc2_block block;
    uint8_t dst[4];
    const uint8_t *src;
 
-   src = texImage->Map +
-      (((texImage->RowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
+   src = map + (((rowStride + 3) / 4) * (j / 4) + (i / 4)) * 8;
 
    etc2_rgb8_parse_block(&block, src,
                          true /* punchthrough alpha */);
@@ -1390,74 +1462,34 @@ _mesa_fetch_texel_2d_f_etc2_srgb8_punchthrough_alpha1(
    texel[ACOMP] = UBYTE_TO_FLOAT(dst[3]);
 }
 
-/**
- * Decode texture data in any one of following formats:
- * `MESA_FORMAT_ETC2_RGB8`
- * `MESA_FORMAT_ETC2_SRGB8`
- * `MESA_FORMAT_ETC2_RGBA8_EAC`
- * `MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC`
- * `MESA_FORMAT_ETC2_R11_EAC`
- * `MESA_FORMAT_ETC2_RG11_EAC`
- * `MESA_FORMAT_ETC2_SIGNED_R11_EAC`
- * `MESA_FORMAT_ETC2_SIGNED_RG11_EAC`
- * `MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1`
- * `MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1`
- *
- * The size of the source data must be a multiple of the ETC2 block size
- * even if the texture image's dimensions are not aligned to 4.
- *
- * \param src_width in pixels
- * \param src_height in pixels
- * \param dst_stride in bytes
- */
 
-void
-_mesa_unpack_etc2_format(uint8_t *dst_row,
-                         unsigned dst_stride,
-                         const uint8_t *src_row,
-                         unsigned src_stride,
-                         unsigned src_width,
-                         unsigned src_height,
-                         gl_format format)
+compressed_fetch_func
+_mesa_get_etc_fetch_func(gl_format format)
 {
-   if (format == MESA_FORMAT_ETC2_RGB8)
-      etc2_unpack_rgb8(dst_row, dst_stride,
-                       src_row, src_stride,
-                       src_width, src_height);
-   else if (format == MESA_FORMAT_ETC2_SRGB8)
-      etc2_unpack_srgb8(dst_row, dst_stride,
-                        src_row, src_stride,
-                        src_width, src_height);
-   else if (format == MESA_FORMAT_ETC2_RGBA8_EAC)
-      etc2_unpack_rgba8(dst_row, dst_stride,
-                        src_row, src_stride,
-                        src_width, src_height);
-   else if (format == MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC)
-      etc2_unpack_srgb8_alpha8(dst_row, dst_stride,
-                               src_row, src_stride,
-                               src_width, src_height);
-   else if (format == MESA_FORMAT_ETC2_R11_EAC)
-      etc2_unpack_r11(dst_row, dst_stride,
-                      src_row, src_stride,
-                      src_width, src_height);
-   else if (format == MESA_FORMAT_ETC2_RG11_EAC)
-      etc2_unpack_rg11(dst_row, dst_stride,
-                       src_row, src_stride,
-                       src_width, src_height);
-   else if (format == MESA_FORMAT_ETC2_SIGNED_R11_EAC)
-      etc2_unpack_signed_r11(dst_row, dst_stride,
-                             src_row, src_stride,
-                             src_width, src_height);
-   else if (format == MESA_FORMAT_ETC2_SIGNED_RG11_EAC)
-      etc2_unpack_signed_rg11(dst_row, dst_stride,
-                              src_row, src_stride,
-                              src_width, src_height);
-   else if (format == MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1)
-      etc2_unpack_rgb8_punchthrough_alpha1(dst_row, dst_stride,
-                                           src_row, src_stride,
-                                           src_width, src_height);
-   else if (format == MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1)
-      etc2_unpack_srgb8_punchthrough_alpha1(dst_row, dst_stride,
-                                            src_row, src_stride,
-                                            src_width, src_height);
+   switch (format) {
+   case MESA_FORMAT_ETC1_RGB8:
+      return fetch_etc1_rgb8;
+   case MESA_FORMAT_ETC2_RGB8:
+      return fetch_etc2_rgb8;
+   case MESA_FORMAT_ETC2_SRGB8:
+      return fetch_etc2_srgb8;
+   case MESA_FORMAT_ETC2_RGBA8_EAC:
+      return fetch_etc2_rgba8_eac;
+   case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC:
+      return fetch_etc2_srgb8_alpha8_eac;
+   case MESA_FORMAT_ETC2_R11_EAC:
+      return fetch_etc2_r11_eac;
+   case MESA_FORMAT_ETC2_RG11_EAC:
+      return fetch_etc2_rg11_eac;
+   case MESA_FORMAT_ETC2_SIGNED_R11_EAC:
+      return fetch_etc2_signed_r11_eac;
+   case MESA_FORMAT_ETC2_SIGNED_RG11_EAC:
+      return fetch_etc2_signed_rg11_eac;
+   case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1:
+      return fetch_etc2_rgb8_punchthrough_alpha1;
+   case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1:
+      return fetch_etc2_srgb8_punchthrough_alpha1;
+   default:
+      return NULL;
+   }
 }
diff --git a/mesalib/src/mesa/main/texcompress_etc.h b/mesalib/src/mesa/main/texcompress_etc.h
index 5e086d4e7..503d0388a 100644
--- a/mesalib/src/mesa/main/texcompress_etc.h
+++ b/mesalib/src/mesa/main/texcompress_etc.h
@@ -27,9 +27,9 @@
 #include <inttypes.h>
 #include "glheader.h"
 #include "mfeatures.h"
+#include "texcompress.h"
 #include "texstore.h"
 
-struct swrast_texture_image;
 
 GLboolean
 _mesa_texstore_etc1_rgb8(TEXSTORE_PARAMS);
@@ -65,50 +65,6 @@ GLboolean
 _mesa_texstore_etc2_srgb8_punchthrough_alpha1(TEXSTORE_PARAMS);
 
 void
-_mesa_fetch_texel_2d_f_etc1_rgb8(const struct swrast_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel);
-void
-_mesa_fetch_texel_2d_f_etc2_rgb8(const struct swrast_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel);
-void
-_mesa_fetch_texel_2d_f_etc2_srgb8(const struct swrast_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, GLfloat *texel);
-
-void
-_mesa_fetch_texel_2d_f_etc2_rgba8_eac(const struct swrast_texture_image *texImage,
-                                      GLint i, GLint j, GLint k, GLfloat *texel);
-void
-_mesa_fetch_texel_2d_f_etc2_srgb8_alpha8_eac(const struct
-                                            swrast_texture_image *texImage,
-                                            GLint i, GLint j,
-                                            GLint k, GLfloat *texel);
-void
-_mesa_fetch_texel_2d_f_etc2_r11_eac(const struct swrast_texture_image *texImage,
-                                    GLint i, GLint j, GLint k, GLfloat *texel);
-void
-_mesa_fetch_texel_2d_f_etc2_rg11_eac(const struct swrast_texture_image *texImage,
-                                     GLint i, GLint j, GLint k, GLfloat *texel);
-void
-_mesa_fetch_texel_2d_f_etc2_signed_r11_eac(const struct
-                                           swrast_texture_image *texImage,
-                                           GLint i, GLint j,
-                                           GLint k, GLfloat *texel);
-void
-_mesa_fetch_texel_2d_f_etc2_signed_rg11_eac(const struct
-                                            swrast_texture_image *texImage,
-                                            GLint i, GLint j,
-                                            GLint k, GLfloat *texel);
-void
-_mesa_fetch_texel_2d_f_etc2_rgb8_punchthrough_alpha1(
-                                 const struct swrast_texture_image *texImage,
-                                 GLint i, GLint j,
-                                 GLint k, GLfloat *texel);
-void
-_mesa_fetch_texel_2d_f_etc2_srgb8_punchthrough_alpha1(
-                                 const struct swrast_texture_image *texImage,
-                                 GLint i, GLint j,
-                                 GLint k, GLfloat *texel);
-void
 _mesa_etc1_unpack_rgba8888(uint8_t *dst_row,
                            unsigned dst_stride,
                            const uint8_t *src_row,
@@ -123,4 +79,8 @@ _mesa_unpack_etc2_format(uint8_t *dst_row,
                          unsigned src_width,
                          unsigned src_height,
                          gl_format format);
+
+compressed_fetch_func
+_mesa_get_etc_fetch_func(gl_format format);
+
 #endif
diff --git a/mesalib/src/mesa/main/texcompress_fxt1.c b/mesalib/src/mesa/main/texcompress_fxt1.c
index eeed78891..f7254f92e 100644
--- a/mesalib/src/mesa/main/texcompress_fxt1.c
+++ b/mesalib/src/mesa/main/texcompress_fxt1.c
@@ -39,7 +39,6 @@
 #include "texcompress.h"
 #include "texcompress_fxt1.h"
 #include "texstore.h"
-#include "swrast/s_context.h"
 
 
 static void
@@ -151,37 +150,6 @@ _mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS)
 }
 
 
-void
-_mesa_fetch_texel_2d_f_rgba_fxt1( const struct swrast_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   /* just sample as GLubyte and convert to float here */
-   GLubyte rgba[4];
-   (void) k;
-   fxt1_decode_1(texImage->Map, texImage->RowStride, i, j, rgba);
-   texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
-   texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
-   texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
-   texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
-}
-
-
-void
-_mesa_fetch_texel_2d_f_rgb_fxt1( const struct swrast_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel )
-{
-   /* just sample as GLubyte and convert to float here */
-   GLubyte rgba[4];
-   (void) k;
-   fxt1_decode_1(texImage->Map, texImage->RowStride, i, j, rgba);
-   texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
-   texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
-   texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
-   texel[ACOMP] = 1.0F;
-}
-
-
-
 /***************************************************************************\
  * FXT1 encoder
  *
@@ -1643,3 +1611,45 @@ fxt1_decode_1 (const void *texture, GLint stride, /* in pixels */
 
    decode_1[mode](code, t, rgba);
 }
+
+
+
+
+static void
+fetch_rgb_fxt1(const GLubyte *map, const GLuint imageOffsets[],
+               GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
+{
+   GLubyte rgba[4];
+   fxt1_decode_1(map, rowStride, i, j, rgba);
+   texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
+   texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
+   texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
+   texel[ACOMP] = 1.0F;
+}
+
+
+static void
+fetch_rgba_fxt1(const GLubyte *map, const GLuint imageOffsets[],
+                GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
+{
+   GLubyte rgba[4];
+   fxt1_decode_1(map, rowStride, i, j, rgba);
+   texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
+   texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
+   texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
+   texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
+}
+
+
+compressed_fetch_func
+_mesa_get_fxt_fetch_func(gl_format format)
+{
+   switch (format) {
+   case MESA_FORMAT_RGB_FXT1:
+      return fetch_rgb_fxt1;
+   case MESA_FORMAT_RGBA_FXT1:
+      return fetch_rgba_fxt1;
+   default:
+      return NULL;
+   }
+}
diff --git a/mesalib/src/mesa/main/texcompress_fxt1.h b/mesalib/src/mesa/main/texcompress_fxt1.h
index 2a8b8d653..5949df90f 100644
--- a/mesalib/src/mesa/main/texcompress_fxt1.h
+++ b/mesalib/src/mesa/main/texcompress_fxt1.h
@@ -29,7 +29,6 @@
 #include "mfeatures.h"
 #include "texstore.h"
 
-struct swrast_texture_image;
 
 extern GLboolean
 _mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS);
@@ -37,12 +36,8 @@ _mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS);
 extern GLboolean
 _mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS);
 
-extern void
-_mesa_fetch_texel_2d_f_rgba_fxt1(const struct swrast_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel);
 
-extern void
-_mesa_fetch_texel_2d_f_rgb_fxt1(const struct swrast_texture_image *texImage,
-                                GLint i, GLint j, GLint k, GLfloat *texel);
+compressed_fetch_func
+_mesa_get_fxt_fetch_func(gl_format format);
 
 #endif /* TEXCOMPRESS_FXT1_H */
diff --git a/mesalib/src/mesa/main/texcompress_rgtc.c b/mesalib/src/mesa/main/texcompress_rgtc.c
index 5773459d7..fa9172aa2 100644
--- a/mesalib/src/mesa/main/texcompress_rgtc.c
+++ b/mesalib/src/mesa/main/texcompress_rgtc.c
@@ -43,7 +43,6 @@
 #include "texcompress.h"
 #include "texcompress_rgtc.h"
 #include "texstore.h"
-#include "swrast/s_context.h"
 
 
 #define RGTC_DEBUG 0
@@ -291,113 +290,120 @@ _mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS)
    return GL_TRUE;
 }
 
-void
-_mesa_fetch_texel_red_rgtc1(const struct swrast_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel)
+
+#define TAG(x) unsigned_##x
+
+#define TYPE GLubyte
+#define T_MIN 0
+#define T_MAX 0xff
+
+#include "texcompress_rgtc_tmp.h"
+
+#undef TAG
+#undef TYPE
+#undef T_MIN
+#undef T_MAX
+
+#define TAG(x) signed_##x
+#define TYPE GLbyte
+#define T_MIN (GLbyte)-128
+#define T_MAX (GLbyte)127
+
+#include "texcompress_rgtc_tmp.h"
+
+#undef TAG
+#undef TYPE
+#undef T_MIN
+#undef T_MAX
+
+
+
+static void
+fetch_red_rgtc1(const GLubyte *map, const GLuint imageOffsets[],
+                GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
 {
    GLubyte red;
-   GLint sliceOffset = k ? texImage->ImageOffsets[k] / 2 : 0;
-   unsigned_fetch_texel_rgtc(texImage->RowStride,
-                             texImage->Map + sliceOffset,
-                             i, j, &red, 1);
+   GLuint sliceOffset = k ? imageOffsets[k] / 2 : 0;
+   unsigned_fetch_texel_rgtc(rowStride, map + sliceOffset, i, j, &red, 1);
    texel[RCOMP] = UBYTE_TO_FLOAT(red);
    texel[GCOMP] = 0.0;
    texel[BCOMP] = 0.0;
    texel[ACOMP] = 1.0;
 }
 
-void
-_mesa_fetch_texel_signed_red_rgtc1(const struct swrast_texture_image *texImage,
-                                   GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_l_latc1(const GLubyte *map, const GLuint imageOffsets[],
+              GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
 {
-   GLbyte red;
-   GLint sliceOffset = k ? texImage->ImageOffsets[k] / 2 : 0;
-   signed_fetch_texel_rgtc(texImage->RowStride,
-                           (GLbyte *)(texImage->Map) + sliceOffset,
-                           i, j, &red, 1);
-   texel[RCOMP] = BYTE_TO_FLOAT_TEX(red);
-   texel[GCOMP] = 0.0;
-   texel[BCOMP] = 0.0;
-   texel[ACOMP] = 1.0;
-}
-
-void
-_mesa_fetch_texel_rg_rgtc2(const struct swrast_texture_image *texImage,
-                           GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   GLubyte red, green;
-   GLint sliceOffset = k ? texImage->ImageOffsets[k] : 0;
-   unsigned_fetch_texel_rgtc(texImage->RowStride,
-                             texImage->Map + sliceOffset,
-                             i, j, &red, 2);
-   unsigned_fetch_texel_rgtc(texImage->RowStride,
-                             texImage->Map + sliceOffset + 8,
-                             i, j, &green, 2);
-   texel[RCOMP] = UBYTE_TO_FLOAT(red);
-   texel[GCOMP] = UBYTE_TO_FLOAT(green);
-   texel[BCOMP] = 0.0;
+   GLubyte red;
+   GLuint sliceOffset = k ? imageOffsets[k] / 2 : 0;
+   unsigned_fetch_texel_rgtc(rowStride, map + sliceOffset, i, j, &red, 1);
+   texel[RCOMP] =
+   texel[GCOMP] =
+   texel[BCOMP] = UBYTE_TO_FLOAT(red);
    texel[ACOMP] = 1.0;
 }
 
-void
-_mesa_fetch_texel_signed_rg_rgtc2(const struct swrast_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_signed_red_rgtc1(const GLubyte *map, const GLuint imageOffsets[],
+                       GLint rowStride, GLint i, GLint j, GLint k,
+                       GLfloat *texel)
 {
-   GLbyte red, green;
-   GLint sliceOffset = k ? texImage->ImageOffsets[k] : 0;
-   signed_fetch_texel_rgtc(texImage->RowStride,
-                           (GLbyte *)(texImage->Map) + sliceOffset,
-                           i, j, &red, 2);
-   signed_fetch_texel_rgtc(texImage->RowStride,
-                           (GLbyte *)(texImage->Map) + sliceOffset + 8,
-                           i, j, &green, 2);
+   GLbyte red;
+   GLuint sliceOffset = k ? imageOffsets[k] / 2 : 0;
+   signed_fetch_texel_rgtc(rowStride, (const GLbyte *) map + sliceOffset,
+                           i, j, &red, 1);
    texel[RCOMP] = BYTE_TO_FLOAT_TEX(red);
-   texel[GCOMP] = BYTE_TO_FLOAT_TEX(green);
+   texel[GCOMP] = 0.0;
    texel[BCOMP] = 0.0;
    texel[ACOMP] = 1.0;
 }
 
-void
-_mesa_fetch_texel_l_latc1(const struct swrast_texture_image *texImage,
-                          GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_signed_l_latc1(const GLubyte *map, const GLuint imageOffsets[],
+                     GLint rowStride, GLint i, GLint j, GLint k,
+                     GLfloat *texel)
 {
    GLubyte red;
-   GLint sliceOffset = k ? texImage->ImageOffsets[k] / 2 : 0;
-   unsigned_fetch_texel_rgtc(texImage->RowStride,
-                             texImage->Map + sliceOffset,
-                             i, j, &red, 1);
+   GLuint sliceOffset = k ? imageOffsets[k] / 2 : 0;
+   unsigned_fetch_texel_rgtc(rowStride,  map + sliceOffset, i, j, &red, 1);
    texel[RCOMP] =
    texel[GCOMP] =
-   texel[BCOMP] = UBYTE_TO_FLOAT(red);
+   texel[BCOMP] = BYTE_TO_FLOAT(red);
    texel[ACOMP] = 1.0;
 }
 
-void
-_mesa_fetch_texel_signed_l_latc1(const struct swrast_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_rg_rgtc2(const GLubyte *map, const GLuint imageOffsets[],
+               GLint rowStride, GLint i, GLint j, GLint k,
+               GLfloat *texel)
 {
-   GLbyte red;
-   GLint sliceOffset = k ? texImage->ImageOffsets[k] / 2 : 0;
-   signed_fetch_texel_rgtc(texImage->RowStride,
-                           (GLbyte *)(texImage->Map) + sliceOffset,
-                           i, j, &red, 1);
-   texel[RCOMP] =
-   texel[GCOMP] =
-   texel[BCOMP] = BYTE_TO_FLOAT_TEX(red);
+   GLubyte red, green;
+   GLuint sliceOffset = k ? imageOffsets[k] : 0;
+   unsigned_fetch_texel_rgtc(rowStride,
+                             map + sliceOffset,
+                             i, j, &red, 2);
+   unsigned_fetch_texel_rgtc(rowStride,
+                             map + sliceOffset + 8,
+                             i, j, &green, 2);
+   texel[RCOMP] = UBYTE_TO_FLOAT(red);
+   texel[GCOMP] = UBYTE_TO_FLOAT(green);
+   texel[BCOMP] = 0.0;
    texel[ACOMP] = 1.0;
 }
 
-void
-_mesa_fetch_texel_la_latc2(const struct swrast_texture_image *texImage,
-                           GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_la_latc2(const GLubyte *map, const GLuint imageOffsets[],
+               GLint rowStride, GLint i, GLint j, GLint k,
+               GLfloat *texel)
 {
    GLubyte red, green;
-   GLint sliceOffset = k ? texImage->ImageOffsets[k] : 0;
-   unsigned_fetch_texel_rgtc(texImage->RowStride,
-                             texImage->Map + sliceOffset,
+   GLuint sliceOffset = k ? imageOffsets[k] : 0;
+   unsigned_fetch_texel_rgtc(rowStride,
+                             map + sliceOffset,
                              i, j, &red, 2);
-   unsigned_fetch_texel_rgtc(texImage->RowStride,
-                             texImage->Map + sliceOffset + 8,
+   unsigned_fetch_texel_rgtc(rowStride,
+                             map + sliceOffset + 8,
                              i, j, &green, 2);
    texel[RCOMP] =
    texel[GCOMP] =
@@ -405,17 +411,39 @@ _mesa_fetch_texel_la_latc2(const struct swrast_texture_image *texImage,
    texel[ACOMP] = UBYTE_TO_FLOAT(green);
 }
 
-void
-_mesa_fetch_texel_signed_la_latc2(const struct swrast_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, GLfloat *texel)
+
+static void
+fetch_signed_rg_rgtc2(const GLubyte *map, const GLuint imageOffsets[],
+                      GLint rowStride, GLint i, GLint j, GLint k,
+                      GLfloat *texel)
+{
+   GLbyte red, green;
+   GLuint sliceOffset = k ? imageOffsets[k] : 0;
+   signed_fetch_texel_rgtc(rowStride,
+                           (GLbyte *) map + sliceOffset,
+                           i, j, &red, 2);
+   signed_fetch_texel_rgtc(rowStride,
+                           (GLbyte *) map + sliceOffset + 8,
+                           i, j, &green, 2);
+   texel[RCOMP] = BYTE_TO_FLOAT_TEX(red);
+   texel[GCOMP] = BYTE_TO_FLOAT_TEX(green);
+   texel[BCOMP] = 0.0;
+   texel[ACOMP] = 1.0;
+}
+
+
+static void
+fetch_signed_la_latc2(const GLubyte *map, const GLuint imageOffsets[],
+                      GLint rowStride, GLint i, GLint j, GLint k,
+                      GLfloat *texel)
 {
    GLbyte red, green;
-   GLint sliceOffset = k ? texImage->ImageOffsets[k] : 0;
-   signed_fetch_texel_rgtc(texImage->RowStride,
-                           (GLbyte *)(texImage->Map) + sliceOffset,
+   GLuint sliceOffset = k ? imageOffsets[k] : 0;
+   signed_fetch_texel_rgtc(rowStride,
+                           (GLbyte *) map + sliceOffset,
                            i, j, &red, 2);
-   signed_fetch_texel_rgtc(texImage->RowStride,
-                           (GLbyte *)(texImage->Map) + sliceOffset + 8,
+   signed_fetch_texel_rgtc(rowStride,
+                           (GLbyte *) map + sliceOffset + 8,
                            i, j, &green, 2);
    texel[RCOMP] =
    texel[GCOMP] =
@@ -423,27 +451,28 @@ _mesa_fetch_texel_signed_la_latc2(const struct swrast_texture_image *texImage,
    texel[ACOMP] = BYTE_TO_FLOAT_TEX(green);
 }
 
-#define TAG(x) unsigned_##x
-
-#define TYPE GLubyte
-#define T_MIN 0
-#define T_MAX 0xff
-
-#include "texcompress_rgtc_tmp.h"
-
-#undef TAG
-#undef TYPE
-#undef T_MIN
-#undef T_MAX
-
-#define TAG(x) signed_##x
-#define TYPE GLbyte
-#define T_MIN (GLbyte)-128
-#define T_MAX (GLbyte)127
 
-#include "texcompress_rgtc_tmp.h"
-
-#undef TAG
-#undef TYPE
-#undef T_MIN
-#undef T_MAX
+compressed_fetch_func
+_mesa_get_compressed_rgtc_func(gl_format format)
+{
+   switch (format) {
+   case MESA_FORMAT_RED_RGTC1:
+      return fetch_red_rgtc1;
+   case MESA_FORMAT_L_LATC1:
+      return fetch_l_latc1;
+   case MESA_FORMAT_SIGNED_RED_RGTC1:
+      return fetch_signed_red_rgtc1;
+   case MESA_FORMAT_SIGNED_L_LATC1:
+      return fetch_signed_l_latc1;
+   case MESA_FORMAT_RG_RGTC2:
+      return fetch_rg_rgtc2;
+   case MESA_FORMAT_LA_LATC2:
+      return fetch_la_latc2;
+   case MESA_FORMAT_SIGNED_RG_RGTC2:
+      return fetch_signed_rg_rgtc2;
+   case MESA_FORMAT_SIGNED_LA_LATC2:
+      return fetch_signed_la_latc2;
+   default:
+      return NULL;
+   }
+}
diff --git a/mesalib/src/mesa/main/texcompress_rgtc.h b/mesalib/src/mesa/main/texcompress_rgtc.h
index 91fda882d..9e1cce438 100644
--- a/mesalib/src/mesa/main/texcompress_rgtc.h
+++ b/mesalib/src/mesa/main/texcompress_rgtc.h
@@ -28,7 +28,6 @@
 #include "mfeatures.h"
 #include "texstore.h"
 
-struct swrast_texture_image;
 
 extern GLboolean
 _mesa_texstore_red_rgtc1(TEXSTORE_PARAMS);
@@ -42,36 +41,8 @@ _mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS);
 extern GLboolean
 _mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS);
 
-extern void
-_mesa_fetch_texel_red_rgtc1(const struct swrast_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel);
+extern compressed_fetch_func
+_mesa_get_compressed_rgtc_func(gl_format format);
 
-extern void
-_mesa_fetch_texel_signed_red_rgtc1(const struct swrast_texture_image *texImage,
-                                   GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_rg_rgtc2(const struct swrast_texture_image *texImage,
-                           GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_signed_rg_rgtc2(const struct swrast_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_l_latc1(const struct swrast_texture_image *texImage,
-                          GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_signed_l_latc1(const struct swrast_texture_image *texImage,
-                                 GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_la_latc2(const struct swrast_texture_image *texImage,
-                           GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_signed_la_latc2(const struct swrast_texture_image *texImage,
-                                  GLint i, GLint j, GLint k, GLfloat *texel);
 
 #endif
diff --git a/mesalib/src/mesa/main/texcompress_s3tc.c b/mesalib/src/mesa/main/texcompress_s3tc.c
index 476b998e0..23a5a0868 100644
--- a/mesalib/src/mesa/main/texcompress_s3tc.c
+++ b/mesalib/src/mesa/main/texcompress_s3tc.c
@@ -44,7 +44,6 @@
 #include "texcompress.h"
 #include "texcompress_s3tc.h"
 #include "texstore.h"
-#include "swrast/s_context.h"
 #include "format_unpack.h"
 
 
@@ -58,7 +57,7 @@
 #define DXTN_LIBNAME "libtxc_dxtn.so"
 #endif
 
-typedef void (*dxtFetchTexelFuncExt)( GLint srcRowstride, GLubyte *pixdata, GLint col, GLint row, GLvoid *texelOut );
+typedef void (*dxtFetchTexelFuncExt)( GLint srcRowstride, const GLubyte *pixdata, GLint col, GLint row, GLvoid *texelOut );
 
 static dxtFetchTexelFuncExt fetch_ext_rgb_dxt1 = NULL;
 static dxtFetchTexelFuncExt fetch_ext_rgba_dxt1 = NULL;
@@ -332,165 +331,105 @@ _mesa_texstore_rgba_dxt5(TEXSTORE_PARAMS)
 }
 
 
+/** Report problem with dxt texture decompression, once */
 static void
-fetch_texel_2d_rgb_dxt1(const struct swrast_texture_image *texImage,
-                        GLint i, GLint j, GLint k, GLubyte *texel)
+problem(const char *func)
 {
-   if (fetch_ext_rgb_dxt1) {
-      GLint sliceOffset = k ? texImage->ImageOffsets[k] / 2 : 0;
-      fetch_ext_rgb_dxt1(texImage->RowStride,
-                         texImage->Map + sliceOffset, i, j, texel);
+   static GLboolean warned = GL_FALSE;
+   if (!warned) {
+      _mesa_debug(NULL, "attempted to decode DXT texture without "
+                  "library available: %s\n", func);
+      warned = GL_TRUE;
    }
-   else
-      _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgb_dxt1");
 }
 
 
-void
-_mesa_fetch_texel_rgb_dxt1(const struct swrast_texture_image *texImage,
-                           GLint i, GLint j, GLint k, GLfloat *texel)
+static void
+fetch_rgb_dxt1(const GLubyte *map, const GLuint imageOffsets[],
+               GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
 {
-   /* just sample as GLubyte and convert to float here */
-   GLubyte rgba[4];
-   fetch_texel_2d_rgb_dxt1(texImage, i, j, k, rgba);
-   texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
-   texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
-   texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
-   texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
+   if (fetch_ext_rgb_dxt1) {
+      GLuint sliceOffset = k ? imageOffsets[k] / 2 : 0;
+      GLubyte tex[4];
+      fetch_ext_rgb_dxt1(rowStride, map + sliceOffset, i, j, tex);
+      texel[RCOMP] = UBYTE_TO_FLOAT(tex[RCOMP]);
+      texel[GCOMP] = UBYTE_TO_FLOAT(tex[GCOMP]);
+      texel[BCOMP] = UBYTE_TO_FLOAT(tex[BCOMP]);
+      texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
+   }
+   else {
+      problem("rgb_dxt1");
+   }
 }
 
-
 static void
-fetch_texel_2d_rgba_dxt1(const struct swrast_texture_image *texImage,
-                         GLint i, GLint j, GLint k, GLubyte *texel)
+fetch_rgba_dxt1(const GLubyte *map, const GLuint imageOffsets[],
+                GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
 {
    if (fetch_ext_rgba_dxt1) {
-      GLint sliceOffset = k ? texImage->ImageOffsets[k] / 2 : 0;
-      fetch_ext_rgba_dxt1(texImage->RowStride,
-                          texImage->Map + sliceOffset, i, j, texel);
+      GLuint sliceOffset = k ? imageOffsets[k] / 2 : 0;
+      GLubyte tex[4];
+      fetch_ext_rgba_dxt1(rowStride, map + sliceOffset, i, j, tex);
+      texel[RCOMP] = UBYTE_TO_FLOAT(tex[RCOMP]);
+      texel[GCOMP] = UBYTE_TO_FLOAT(tex[GCOMP]);
+      texel[BCOMP] = UBYTE_TO_FLOAT(tex[BCOMP]);
+      texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
+   }
+   else {
+      problem("rgba_dxt1");
    }
-   else
-      _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgba_dxt1\n");
-}
-
-
-void
-_mesa_fetch_texel_rgba_dxt1(const struct swrast_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   /* just sample as GLubyte and convert to float here */
-   GLubyte rgba[4];
-   fetch_texel_2d_rgba_dxt1(texImage, i, j, k, rgba);
-   texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
-   texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
-   texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
-   texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
 }
 
-
 static void
-fetch_texel_2d_rgba_dxt3(const struct swrast_texture_image *texImage,
-                         GLint i, GLint j, GLint k, GLubyte *texel)
+fetch_rgba_dxt3(const GLubyte *map, const GLuint imageOffsets[],
+                GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
 {
    if (fetch_ext_rgba_dxt3) {
-      GLint sliceOffset = k ? texImage->ImageOffsets[k] : 0;
-      fetch_ext_rgba_dxt3(texImage->RowStride,
-                          texImage->Map + sliceOffset, i, j, texel);
+      GLuint sliceOffset = k ? imageOffsets[k] : 0;
+      GLubyte tex[4];
+      fetch_ext_rgba_dxt3(rowStride, map + sliceOffset, i, j, tex);
+      texel[RCOMP] = UBYTE_TO_FLOAT(tex[RCOMP]);
+      texel[GCOMP] = UBYTE_TO_FLOAT(tex[GCOMP]);
+      texel[BCOMP] = UBYTE_TO_FLOAT(tex[BCOMP]);
+      texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
+   }
+   else {
+      problem("rgba_dxt3");
    }
-   else
-      _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgba_dxt3\n");
-}
-
-
-void
-_mesa_fetch_texel_rgba_dxt3(const struct swrast_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   /* just sample as GLubyte and convert to float here */
-   GLubyte rgba[4];
-   fetch_texel_2d_rgba_dxt3(texImage, i, j, k, rgba);
-   texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
-   texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
-   texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
-   texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
 }
 
-
 static void
-fetch_texel_2d_rgba_dxt5(const struct swrast_texture_image *texImage,
-                         GLint i, GLint j, GLint k, GLubyte *texel)
+fetch_rgba_dxt5(const GLubyte *map, const GLuint imageOffsets[],
+                GLint rowStride, GLint i, GLint j, GLint k, GLfloat *texel)
 {
    if (fetch_ext_rgba_dxt5) {
-      GLint sliceOffset = k ? texImage->ImageOffsets[k] : 0;
-      fetch_ext_rgba_dxt5(texImage->RowStride,
-                          texImage->Map + sliceOffset, i, j, texel);
+      GLuint sliceOffset = k ? imageOffsets[k] : 0;
+      GLubyte tex[4];
+      fetch_ext_rgba_dxt5(rowStride, map + sliceOffset, i, j, tex);
+      texel[RCOMP] = UBYTE_TO_FLOAT(tex[RCOMP]);
+      texel[GCOMP] = UBYTE_TO_FLOAT(tex[GCOMP]);
+      texel[BCOMP] = UBYTE_TO_FLOAT(tex[BCOMP]);
+      texel[ACOMP] = UBYTE_TO_FLOAT(tex[ACOMP]);
+   }
+   else {
+      problem("rgba_dxt5");
    }
-   else
-      _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgba_dxt5\n");
-}
-
-
-void
-_mesa_fetch_texel_rgba_dxt5(const struct swrast_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   /* just sample as GLubyte and convert to float here */
-   GLubyte rgba[4];
-   fetch_texel_2d_rgba_dxt5(texImage, i, j, k, rgba);
-   texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
-   texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
-   texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
-   texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
-}
-
-void
-_mesa_fetch_texel_srgb_dxt1(const struct swrast_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   /* just sample as GLubyte and convert to float here */
-   GLubyte rgba[4];
-   fetch_texel_2d_rgb_dxt1(texImage, i, j, k, rgba);
-   texel[RCOMP] = _mesa_nonlinear_to_linear(rgba[RCOMP]);
-   texel[GCOMP] = _mesa_nonlinear_to_linear(rgba[GCOMP]);
-   texel[BCOMP] = _mesa_nonlinear_to_linear(rgba[BCOMP]);
-   texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
 }
 
-void
-_mesa_fetch_texel_srgba_dxt1(const struct swrast_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   /* just sample as GLubyte and convert to float here */
-   GLubyte rgba[4];
-   fetch_texel_2d_rgba_dxt1(texImage, i, j, k, rgba);
-   texel[RCOMP] = _mesa_nonlinear_to_linear(rgba[RCOMP]);
-   texel[GCOMP] = _mesa_nonlinear_to_linear(rgba[GCOMP]);
-   texel[BCOMP] = _mesa_nonlinear_to_linear(rgba[BCOMP]);
-   texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
-}
 
-void
-_mesa_fetch_texel_srgba_dxt3(const struct swrast_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel)
+compressed_fetch_func
+_mesa_get_dxt_fetch_func(gl_format format)
 {
-   /* just sample as GLubyte and convert to float here */
-   GLubyte rgba[4];
-   fetch_texel_2d_rgba_dxt3(texImage, i, j, k, rgba);
-   texel[RCOMP] = _mesa_nonlinear_to_linear(rgba[RCOMP]);
-   texel[GCOMP] = _mesa_nonlinear_to_linear(rgba[GCOMP]);
-   texel[BCOMP] = _mesa_nonlinear_to_linear(rgba[BCOMP]);
-   texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
-}
-
-void
-_mesa_fetch_texel_srgba_dxt5(const struct swrast_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel)
-{
-   /* just sample as GLubyte and convert to float here */
-   GLubyte rgba[4];
-   fetch_texel_2d_rgba_dxt5(texImage, i, j, k, rgba);
-   texel[RCOMP] = _mesa_nonlinear_to_linear(rgba[RCOMP]);
-   texel[GCOMP] = _mesa_nonlinear_to_linear(rgba[GCOMP]);
-   texel[BCOMP] = _mesa_nonlinear_to_linear(rgba[BCOMP]);
-   texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
+   switch (format) {
+   case MESA_FORMAT_RGB_DXT1:
+      return fetch_rgb_dxt1;
+   case MESA_FORMAT_RGBA_DXT1:
+      return fetch_rgba_dxt1;
+   case MESA_FORMAT_RGBA_DXT3:
+      return fetch_rgba_dxt3;
+   case MESA_FORMAT_RGBA_DXT5:
+      return fetch_rgba_dxt5;
+   default:
+      return NULL;
+   }
 }
diff --git a/mesalib/src/mesa/main/texcompress_s3tc.h b/mesalib/src/mesa/main/texcompress_s3tc.h
index 524ac0c13..d9ef68992 100644
--- a/mesalib/src/mesa/main/texcompress_s3tc.h
+++ b/mesalib/src/mesa/main/texcompress_s3tc.h
@@ -29,9 +29,9 @@
 #include "glheader.h"
 #include "mfeatures.h"
 #include "texstore.h"
+#include "texcompress.h"
 
 struct gl_context;
-struct swrast_texture_image;
 
 extern GLboolean
 _mesa_texstore_rgb_dxt1(TEXSTORE_PARAMS);
@@ -45,39 +45,12 @@ _mesa_texstore_rgba_dxt3(TEXSTORE_PARAMS);
 extern GLboolean
 _mesa_texstore_rgba_dxt5(TEXSTORE_PARAMS);
 
-extern void
-_mesa_fetch_texel_rgb_dxt1(const struct swrast_texture_image *texImage,
-                           GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_rgba_dxt1(const struct swrast_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_rgba_dxt3(const struct swrast_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_rgba_dxt5(const struct swrast_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel);
 
 extern void
-_mesa_fetch_texel_srgb_dxt1(const struct swrast_texture_image *texImage,
-                            GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_fetch_texel_srgba_dxt1(const struct swrast_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel);
+_mesa_init_texture_s3tc(struct gl_context *ctx);
 
-extern void
-_mesa_fetch_texel_srgba_dxt3(const struct swrast_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel);
+extern compressed_fetch_func
+_mesa_get_dxt_fetch_func(gl_format format);
 
-extern void
-_mesa_fetch_texel_srgba_dxt5(const struct swrast_texture_image *texImage,
-                             GLint i, GLint j, GLint k, GLfloat *texel);
-
-extern void
-_mesa_init_texture_s3tc(struct gl_context *ctx);
 
 #endif /* TEXCOMPRESS_S3TC_H */
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index 83b7e1488..7a0d944fd 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -791,9 +791,9 @@ _mesa_select_tex_object(struct gl_context *ctx,
       case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
          return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
       case GL_TEXTURE_BUFFER:
-         return _mesa_is_desktop_gl(ctx) 
-            && ctx->Extensions.ARB_texture_buffer_object
-            ? texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
+         return ctx->API == API_OPENGL_CORE &&
+                ctx->Extensions.ARB_texture_buffer_object ?
+                texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
       case GL_TEXTURE_EXTERNAL_OES:
          return ctx->Extensions.OES_EGL_image_external
             ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL;
@@ -994,9 +994,8 @@ _mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
       return ctx->Extensions.ARB_texture_cube_map_array
          ? ctx->Const.MaxCubeTextureLevels : 0;
    case GL_TEXTURE_BUFFER:
-      return _mesa_is_desktop_gl(ctx)
-         && ctx->Extensions.ARB_texture_buffer_object
-         ? 1 : 0;
+      return ctx->API == API_OPENGL_CORE &&
+             ctx->Extensions.ARB_texture_buffer_object ? 1 : 0;
    case GL_TEXTURE_EXTERNAL_OES:
       /* fall-through */
    default:
@@ -3849,6 +3848,13 @@ get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
    case GL_R32UI:
       return MESA_FORMAT_R_UINT32;
 
+   case GL_RGB32F:
+      return MESA_FORMAT_RGB_FLOAT32;
+   case GL_RGB32UI:
+      return MESA_FORMAT_RGB_UINT32;
+   case GL_RGB32I:
+      return MESA_FORMAT_RGB_INT32;
+
    default:
       return MESA_FORMAT_NONE;
    }
@@ -3880,6 +3886,12 @@ validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
       if (base_format == GL_R || base_format == GL_RG)
 	 return MESA_FORMAT_NONE;
    }
+
+   if (!ctx->Extensions.ARB_texture_buffer_object_rgb32) {
+      GLenum base_format = _mesa_get_format_base_format(format);
+      if (base_format == GL_RGB)
+         return MESA_FORMAT_NONE;
+   }
    return format;
 }
 
@@ -3895,8 +3907,8 @@ _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer)
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 
-   if (!(ctx->Extensions.ARB_texture_buffer_object
-         && _mesa_is_desktop_gl(ctx))) {
+   if (!(ctx->API == API_OPENGL_CORE &&
+         ctx->Extensions.ARB_texture_buffer_object)) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer");
       return;
    }
diff --git a/mesalib/src/mesa/main/texobj.c b/mesalib/src/mesa/main/texobj.c
index d650c75e4..cb7ac19a8 100644
--- a/mesalib/src/mesa/main/texobj.c
+++ b/mesalib/src/mesa/main/texobj.c
@@ -1148,9 +1148,9 @@ target_enum_to_index(struct gl_context *ctx, GLenum target)
          || _mesa_is_gles3(ctx)
          ? TEXTURE_2D_ARRAY_INDEX : -1;
    case GL_TEXTURE_BUFFER_ARB:
-      return _mesa_is_desktop_gl(ctx)
-         && ctx->Extensions.ARB_texture_buffer_object
-         ? TEXTURE_BUFFER_INDEX : -1;
+      return ctx->API == API_OPENGL_CORE &&
+             ctx->Extensions.ARB_texture_buffer_object ?
+             TEXTURE_BUFFER_INDEX : -1;
    case GL_TEXTURE_EXTERNAL_OES:
       return _mesa_is_gles(ctx) && ctx->Extensions.OES_EGL_image_external
          ? TEXTURE_EXTERNAL_INDEX : -1;
diff --git a/mesalib/src/mesa/main/texparam.c b/mesalib/src/mesa/main/texparam.c
index c2d161f9a..ca5a21f78 100644
--- a/mesalib/src/mesa/main/texparam.c
+++ b/mesalib/src/mesa/main/texparam.c
@@ -976,7 +976,7 @@ legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target)
        * From the OpenGL 3.1 spec:
        * "target may also be TEXTURE_BUFFER, indicating the texture buffer."
        */
-      return _mesa_is_desktop_gl(ctx) && ctx->Version >= 31;
+      return ctx->API == API_OPENGL_CORE && ctx->Version >= 31;
    default:
       return GL_FALSE;
    }
diff --git a/mesalib/src/mesa/main/uniform_query.cpp b/mesalib/src/mesa/main/uniform_query.cpp
index c71577c6e..b6b73d16f 100644
--- a/mesalib/src/mesa/main/uniform_query.cpp
+++ b/mesalib/src/mesa/main/uniform_query.cpp
@@ -97,12 +97,16 @@ _mesa_GetActiveUniformsiv(GLuint program,
 
    for (i = 0; i < uniformCount; i++) {
       GLuint index = uniformIndices[i];
-      const struct gl_uniform_storage *uni = &shProg->UniformStorage[index];
 
       if (index >= shProg->NumUserUniformStorage) {
 	 _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniformsiv(index)");
 	 return;
       }
+   }
+
+   for (i = 0; i < uniformCount; i++) {
+      GLuint index = uniformIndices[i];
+      const struct gl_uniform_storage *uni = &shProg->UniformStorage[index];
 
       switch (pname) {
       case GL_UNIFORM_TYPE:
diff --git a/mesalib/src/mesa/main/uniforms.c b/mesalib/src/mesa/main/uniforms.c
index 3f156bf10..77b195edb 100644
--- a/mesalib/src/mesa/main/uniforms.c
+++ b/mesalib/src/mesa/main/uniforms.c
@@ -614,14 +614,14 @@ _mesa_UniformBlockBinding(GLuint program,
 
    if (uniformBlockIndex >= shProg->NumUniformBlocks) {
       _mesa_error(ctx, GL_INVALID_VALUE,
-		  "glUniformBlockBinding(block index %d >= %d)",
+		  "glUniformBlockBinding(block index %u >= %u)",
 		  uniformBlockIndex, shProg->NumUniformBlocks);
       return;
    }
 
    if (uniformBlockBinding >= ctx->Const.MaxUniformBufferBindings) {
       _mesa_error(ctx, GL_INVALID_VALUE,
-		  "glUniformBlockBinding(block binding %d >= %d)",
+		  "glUniformBlockBinding(block binding %u >= %u)",
 		  uniformBlockBinding, ctx->Const.MaxUniformBufferBindings);
       return;
    }
@@ -667,7 +667,7 @@ _mesa_GetActiveUniformBlockiv(GLuint program,
 
    if (uniformBlockIndex >= shProg->NumUniformBlocks) {
       _mesa_error(ctx, GL_INVALID_VALUE,
-		  "glGetActiveUniformBlockiv(block index %d >= %d)",
+		  "glGetActiveUniformBlockiv(block index %u >= %u)",
 		  uniformBlockIndex, shProg->NumUniformBlocks);
       return;
    }
@@ -750,7 +750,7 @@ _mesa_GetActiveUniformBlockName(GLuint program,
 
    if (uniformBlockIndex >= shProg->NumUniformBlocks) {
       _mesa_error(ctx, GL_INVALID_VALUE,
-		  "glGetActiveUniformBlockiv(block index %d >= %d)",
+		  "glGetActiveUniformBlockiv(block index %u >= %u)",
 		  uniformBlockIndex, shProg->NumUniformBlocks);
       return;
    }
diff --git a/mesalib/src/mesa/main/varray.c b/mesalib/src/mesa/main/varray.c
index f77014397..5e4d6c3e6 100644
--- a/mesalib/src/mesa/main/varray.c
+++ b/mesalib/src/mesa/main/varray.c
@@ -251,7 +251,8 @@ update_array(struct gl_context *ctx,
       return;
    }
 
-   elementSize = _mesa_sizeof_type(type) * size;
+   elementSize = _mesa_bytes_per_vertex_attrib(size, type);
+   assert(elementSize != -1);
 
    array = &ctx->Array.ArrayObj->VertexAttrib[attrib];
    array->Size = size;
diff --git a/mesalib/src/mesa/main/version.c b/mesalib/src/mesa/main/version.c
index eef8f437d..4373d7b91 100644
--- a/mesalib/src/mesa/main/version.c
+++ b/mesalib/src/mesa/main/version.c
@@ -345,6 +345,12 @@ _mesa_compute_version(struct gl_context *ctx)
 
    switch (ctx->API) {
    case API_OPENGL_COMPAT:
+      /* Disable GLSL 1.40 and later for legacy contexts.
+       * This disallows creation of the GL 3.1 compatibility context. */
+      if (ctx->Const.GLSLVersion > 130) {
+         ctx->Const.GLSLVersion = 130;
+      }
+      /* fall through */
    case API_OPENGL_CORE:
       compute_version(ctx);
       break;
diff --git a/mesalib/src/mesa/main/vtxfmt.c b/mesalib/src/mesa/main/vtxfmt.c
index 674edb5e1..6d687de60 100644
--- a/mesalib/src/mesa/main/vtxfmt.c
+++ b/mesalib/src/mesa/main/vtxfmt.c
@@ -36,6 +36,7 @@
 #include "eval.h"
 #include "dlist.h"
 #include "main/dispatch.h"
+#include "vbo/vbo_context.h"
 
 
 /**
@@ -46,6 +47,8 @@ static void
 install_vtxfmt(struct gl_context *ctx, struct _glapi_table *tab,
                const GLvertexformat *vfmt)
 {
+   assert(ctx->Version > 0);
+
    if (ctx->API != API_OPENGL_CORE && ctx->API != API_OPENGLES2) {
       SET_Color4f(tab, vfmt->Color4f);
    }
@@ -262,3 +265,20 @@ _mesa_install_save_vtxfmt(struct gl_context *ctx, const GLvertexformat *vfmt)
    if (_mesa_is_desktop_gl(ctx))
       install_vtxfmt( ctx, ctx->Save, vfmt );
 }
+
+
+/**
+ * Install VBO vtxfmt functions.
+ *
+ * This function depends on ctx->Version.
+ */
+void
+_mesa_initialize_vbo_vtxfmt(struct gl_context *ctx)
+{
+   struct vbo_exec_context *exec = &vbo_context(ctx)->exec;
+   _mesa_install_exec_vtxfmt(ctx, &exec->vtxfmt);
+   if (ctx->API == API_OPENGL_COMPAT) {
+      _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
+   }
+}
+
diff --git a/mesalib/src/mesa/main/vtxfmt.h b/mesalib/src/mesa/main/vtxfmt.h
index 65a0e6c8e..16ffb6ffd 100644
--- a/mesalib/src/mesa/main/vtxfmt.h
+++ b/mesalib/src/mesa/main/vtxfmt.h
@@ -39,5 +39,6 @@
 
 extern void _mesa_install_exec_vtxfmt( struct gl_context *ctx, const GLvertexformat *vfmt );
 extern void _mesa_install_save_vtxfmt( struct gl_context *ctx, const GLvertexformat *vfmt );
+extern void _mesa_initialize_vbo_vtxfmt(struct gl_context *ctx);
 
 #endif /* _VTXFMT_H_ */
diff --git a/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c b/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c
index a10dbfbd0..3df8691f4 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_framebuffer.c
@@ -71,7 +71,6 @@ update_renderbuffer_surface(struct st_context *st,
             struct pipe_surface surf_tmpl;
             memset(&surf_tmpl, 0, sizeof(surf_tmpl));
             surf_tmpl.format = format;
-            surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
             surf_tmpl.u.tex.level = level;
             surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;
             surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;
diff --git a/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c b/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c
index d9e9d21f6..f20df9e9b 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c
@@ -230,8 +230,7 @@ static void update_raster_state( struct st_context *st )
    raster->line_stipple_factor = ctx->Line.StippleFactor - 1;
 
    /* _NEW_MULTISAMPLE */
-   if (ctx->Multisample._Enabled || st->force_msaa)
-      raster->multisample = 1;
+   raster->multisample = ctx->Multisample._Enabled;
 
    /* _NEW_SCISSOR */
    if (ctx->Scissor.Enabled)
diff --git a/mesalib/src/mesa/state_tracker/st_cb_condrender.c b/mesalib/src/mesa/state_tracker/st_cb_condrender.c
index 1ced560e1..3a5835ecd 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_condrender.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_condrender.c
@@ -38,6 +38,7 @@
 
 #include "pipe/p_context.h"
 #include "pipe/p_defines.h"
+#include "cso_cache/cso_context.h"
 #include "st_context.h"
 #include "st_cb_queryobj.h"
 #include "st_cb_condrender.h"
@@ -53,7 +54,6 @@ st_BeginConditionalRender(struct gl_context *ctx, struct gl_query_object *q,
 {
    struct st_query_object *stq = st_query_object(q);
    struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
    uint m;
 
    st_flush_bitmap_cache(st);
@@ -76,10 +76,7 @@ st_BeginConditionalRender(struct gl_context *ctx, struct gl_query_object *q,
       m = PIPE_RENDER_COND_WAIT;
    }
 
-   st->render_condition = stq->pq;
-   st->condition_mode = m;
-
-   pipe->render_condition(pipe, stq->pq, m);
+   cso_set_render_condition(st->cso_context, stq->pq, m);
 }
 
 
@@ -90,13 +87,11 @@ static void
 st_EndConditionalRender(struct gl_context *ctx, struct gl_query_object *q)
 {
    struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
    (void) q;
 
    st_flush_bitmap_cache(st);
 
-   pipe->render_condition(pipe, NULL, 0);
-   st->render_condition = NULL;
+   cso_set_render_condition(st->cso_context, NULL, 0);
 }
 
 
diff --git a/mesalib/src/mesa/state_tracker/st_cb_eglimage.c b/mesalib/src/mesa/state_tracker/st_cb_eglimage.c
index 0679e7d44..8c78e5ef4 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_eglimage.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_eglimage.c
@@ -76,10 +76,8 @@ st_egl_image_target_renderbuffer_storage(struct gl_context *ctx,
    struct st_context *st = st_context(ctx);
    struct st_renderbuffer *strb = st_renderbuffer(rb);
    struct pipe_surface *ps;
-   unsigned usage;
 
-   usage = PIPE_BIND_RENDER_TARGET;
-   ps = st_manager_get_egl_image_surface(st, (void *) image_handle, usage);
+   ps = st_manager_get_egl_image_surface(st, (void *) image_handle);
    if (ps) {
       strb->Base.Width = ps->width;
       strb->Base.Height = ps->height;
@@ -146,10 +144,8 @@ st_egl_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 {
    struct st_context *st = st_context(ctx);
    struct pipe_surface *ps;
-   unsigned usage;
 
-   usage = PIPE_BIND_SAMPLER_VIEW;
-   ps = st_manager_get_egl_image_surface(st, (void *) image_handle, usage);
+   ps = st_manager_get_egl_image_surface(st, (void *) image_handle);
    if (ps) {
       st_bind_surface(ctx, target, texObj, texImage, ps);
       pipe_surface_reference(&ps, NULL);
diff --git a/mesalib/src/mesa/state_tracker/st_cb_fbo.c b/mesalib/src/mesa/state_tracker/st_cb_fbo.c
index ae280bfa9..bf206b025 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_fbo.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_fbo.c
@@ -206,7 +206,7 @@ st_renderbuffer_alloc_storage(struct gl_context * ctx,
    if (!strb->texture)
       return FALSE;
 
-   u_surface_default_template(&surf_tmpl, strb->texture, templ.bind);
+   u_surface_default_template(&surf_tmpl, strb->texture);
    strb->surface = pipe->create_surface(pipe,
                                         strb->texture,
                                         &surf_tmpl);
@@ -444,7 +444,6 @@ st_render_texture(struct gl_context *ctx,
    memset(&surf_tmpl, 0, sizeof(surf_tmpl));
    surf_tmpl.format = ctx->Color.sRGBEnabled
       ? strb->texture->format : util_format_linear(strb->texture->format);
-   surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
    surf_tmpl.u.tex.level = strb->rtt_level;
    surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;
    surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;
diff --git a/mesalib/src/mesa/state_tracker/st_cb_texture.c b/mesalib/src/mesa/state_tracker/st_cb_texture.c
index ae069eb2c..bf13526d2 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_texture.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_texture.c
@@ -60,7 +60,6 @@
 #include "pipe/p_shader_tokens.h"
 #include "util/u_tile.h"
 #include "util/u_blit.h"
-#include "util/u_blitter.h"
 #include "util/u_format.h"
 #include "util/u_surface.h"
 #include "util/u_sampler.h"
@@ -1089,14 +1088,8 @@ st_CopyTexSubImage(struct gl_context *ctx, GLuint dims,
       goto fallback;
    }
 
-   /* Disable conditional rendering. */
-   if (st->render_condition) {
-      pipe->render_condition(pipe, NULL, 0);
-   }
-
    memset(&surf_tmpl, 0, sizeof(surf_tmpl));
    surf_tmpl.format = util_format_linear(stImage->pt->format);
-   surf_tmpl.usage = dst_usage;
    surf_tmpl.u.tex.level = stImage->base.Level;
    surf_tmpl.u.tex.first_layer = stImage->base.Face + destZ;
    surf_tmpl.u.tex.last_layer = stImage->base.Face + destZ;
@@ -1115,13 +1108,6 @@ st_CopyTexSubImage(struct gl_context *ctx, GLuint dims,
                     0.0, PIPE_TEX_MIPFILTER_NEAREST,
                     color_writemask, 0);
    pipe_surface_reference(&dest_surface, NULL);
-
-   /* Restore conditional rendering state. */
-   if (st->render_condition) {
-      pipe->render_condition(pipe, st->render_condition,
-                             st->condition_mode);
-   }
-
    return;
 
 fallback:
diff --git a/mesalib/src/mesa/state_tracker/st_context.c b/mesalib/src/mesa/state_tracker/st_context.c
index 69bd50336..368a30b68 100644
--- a/mesalib/src/mesa/state_tracker/st_context.c
+++ b/mesalib/src/mesa/state_tracker/st_context.c
@@ -27,9 +27,12 @@
 
 #include "main/imports.h"
 #include "main/accum.h"
+#include "main/api_exec.h"
 #include "main/context.h"
 #include "main/samplerobj.h"
 #include "main/shaderobj.h"
+#include "main/version.h"
+#include "main/vtxfmt.h"
 #include "program/prog_cache.h"
 #include "vbo/vbo.h"
 #include "glapi/glapi.h"
@@ -97,22 +100,6 @@ void st_invalidate_state(struct gl_context * ctx, GLuint new_state)
    _vbo_InvalidateState(ctx, new_state);
 }
 
-
-/**
- * Check for multisample env var override.
- */
-int
-st_get_msaa(void)
-{
-   const char *msaa = _mesa_getenv("__GL_FSAA_MODE");
-   if (msaa)
-      return atoi(msaa);
-   return 0;
-}
-
-
-
-
 static struct st_context *
 st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
 		const struct st_config_options *options)
@@ -193,7 +180,6 @@ st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
 
    st->pixel_xfer.cache = _mesa_new_program_cache();
 
-   st->force_msaa = st_get_msaa();
    st->has_stencil_export =
       screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
 
@@ -201,6 +187,11 @@ st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
    st_init_limits(st);
    st_init_extensions(st);
 
+   _mesa_compute_version(ctx);
+
+   _mesa_initialize_exec_table(ctx);
+   _mesa_initialize_vbo_vtxfmt(ctx);
+
    return st;
 }
 
diff --git a/mesalib/src/mesa/state_tracker/st_context.h b/mesalib/src/mesa/state_tracker/st_context.h
index 2cc52773e..eeb7f0c4f 100644
--- a/mesalib/src/mesa/state_tracker/st_context.h
+++ b/mesalib/src/mesa/state_tracker/st_context.h
@@ -185,16 +185,11 @@ struct st_context
 
    struct cso_context *cso_context;
 
-   int force_msaa;
    void *winsys_drawable_handle;
 
    /* The number of vertex buffers from the last call of validate_arrays. */
    unsigned last_num_vbuffers;
 
-   /* Active render condition. */
-   struct pipe_query *render_condition;
-   unsigned condition_mode;
-
    int32_t draw_stamp;
    int32_t read_stamp;
 
@@ -265,9 +260,6 @@ st_fb_orientation(const struct gl_framebuffer *fb)
 #define ST_CALLOC_STRUCT(T)   (struct T *) calloc(1, sizeof(struct T))
 
 
-extern int
-st_get_msaa(void);
-
 extern struct st_context *
 st_create_context(gl_api api, struct pipe_context *pipe,
                   const struct gl_config *visual,
diff --git a/mesalib/src/mesa/state_tracker/st_extensions.c b/mesalib/src/mesa/state_tracker/st_extensions.c
index 93ef7a91c..262cc3d6c 100644
--- a/mesalib/src/mesa/state_tracker/st_extensions.c
+++ b/mesalib/src/mesa/state_tracker/st_extensions.c
@@ -494,6 +494,14 @@ void st_init_extensions(struct st_context *st)
           PIPE_FORMAT_B10G10R10A2_SSCALED } },
    };
 
+   static const struct st_extension_format_mapping tbo_rgb32[] = {
+      { {o(ARB_texture_buffer_object_rgb32) },
+        { PIPE_FORMAT_R32G32B32_FLOAT,
+          PIPE_FORMAT_R32G32B32_UINT,
+          PIPE_FORMAT_R32G32B32_SINT,
+        } },
+   };
+
    /*
     * Extensions that are supported by all Gallium drivers:
     */
@@ -570,10 +578,7 @@ void st_init_extensions(struct st_context *st)
    glsl_feature_level = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
 
    if (glsl_feature_level >= 140) {
-      if (ctx->API == API_OPENGL_CORE)
-         ctx->Const.GLSLVersion = 140;
-      else
-         ctx->Const.GLSLVersion = 130;
+      ctx->Const.GLSLVersion = 140;
    } else if (glsl_feature_level >= 130) {
       ctx->Const.GLSLVersion = 130;
    } else {
@@ -664,6 +669,24 @@ void st_init_extensions(struct st_context *st)
    if (ctx->Const.MinMapBufferAlignment >= 64) {
       ctx->Extensions.ARB_map_buffer_alignment = GL_TRUE;
    }
-   if (screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OBJECTS))
+   if (screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OBJECTS)) {
       ctx->Extensions.ARB_texture_buffer_object = GL_TRUE;
+      init_format_extensions(st, tbo_rgb32, Elements(tbo_rgb32),
+                             PIPE_BUFFER, PIPE_BIND_SAMPLER_VIEW);
+   }
+
+
+   /* Unpacking a varying in the fragment shader costs 1 texture indirection.
+    * If the number of available texture indirections is very limited, then we
+    * prefer to disable varying packing rather than run the risk of varying
+    * packing preventing a shader from running.
+    */
+   if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
+                                PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
+      /* We can't disable varying packing if transform feedback is available,
+       * because transform feedback code assumes a packed varying layout.
+       */
+      if (!ctx->Extensions.EXT_transform_feedback)
+         ctx->Const.DisableVaryingPacking = GL_TRUE;
+   }
 }
diff --git a/mesalib/src/mesa/state_tracker/st_gen_mipmap.c b/mesalib/src/mesa/state_tracker/st_gen_mipmap.c
index c09261312..8ce2e06a2 100644
--- a/mesalib/src/mesa/state_tracker/st_gen_mipmap.c
+++ b/mesalib/src/mesa/state_tracker/st_gen_mipmap.c
@@ -93,18 +93,9 @@ st_render_mipmap(struct st_context *st,
 
    psv = st_create_texture_sampler_view(pipe, stObj->pt);
 
-   /* Disable conditional rendering. */
-   if (st->render_condition) {
-      pipe->render_condition(pipe, NULL, 0);
-   }
-
    util_gen_mipmap(st->gen_mipmap, psv, face, baseLevel, lastLevel,
                    PIPE_TEX_FILTER_LINEAR);
 
-   if (st->render_condition) {
-      pipe->render_condition(pipe, st->render_condition, st->condition_mode);
-   }
-
    pipe_sampler_view_reference(&psv, NULL);
 
    return TRUE;
diff --git a/mesalib/src/mesa/state_tracker/st_manager.c b/mesalib/src/mesa/state_tracker/st_manager.c
index b065db0ac..30f5ca5ed 100644
--- a/mesalib/src/mesa/state_tracker/st_manager.c
+++ b/mesalib/src/mesa/state_tracker/st_manager.c
@@ -224,8 +224,7 @@ st_framebuffer_validate(struct st_framebuffer *stfb,
          continue;
       }
 
-      u_surface_default_template(&surf_tmpl, textures[i],
-                                 PIPE_BIND_RENDER_TARGET);
+      u_surface_default_template(&surf_tmpl, textures[i]);
       ps = st->pipe->create_surface(st->pipe, textures[i], &surf_tmpl);
       if (ps) {
          pipe_surface_reference(&strb->surface, ps);
@@ -285,7 +284,6 @@ st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb,
 {
    struct gl_renderbuffer *rb;
    enum pipe_format format;
-   int samples;
    boolean sw;
 
    if (!stfb->iface)
@@ -313,11 +311,7 @@ st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb,
    if (format == PIPE_FORMAT_NONE)
       return FALSE;
 
-   samples = stfb->iface->visual->samples;
-   if (!samples)
-      samples = st_get_msaa();
-
-   rb = st_new_renderbuffer_fb(format, samples, sw);
+   rb = st_new_renderbuffer_fb(format, stfb->iface->visual->samples, sw);
    if (!rb)
       return FALSE;
 
@@ -653,8 +647,6 @@ st_api_create_context(struct st_api *stapi, struct st_manager *smapi,
 
    /* need to perform version check */
    if (attribs->major > 1 || attribs->minor > 0) {
-      _mesa_compute_version(st->ctx);
-
       /* Is the actual version less than the requested version?
        */
       if (st->ctx->Version < attribs->major * 10 + attribs->minor) {
@@ -797,8 +789,7 @@ st_manager_flush_frontbuffer(struct st_context *st)
  * FIXME: I think this should operate on resources, not surfaces
  */
 struct pipe_surface *
-st_manager_get_egl_image_surface(struct st_context *st,
-                                 void *eglimg, unsigned usage)
+st_manager_get_egl_image_surface(struct st_context *st, void *eglimg)
 {
    struct st_manager *smapi =
       (struct st_manager *) st->iface.st_context_private;
@@ -812,7 +803,7 @@ st_manager_get_egl_image_surface(struct st_context *st,
    if (!smapi->get_egl_image(smapi, eglimg, &stimg))
       return NULL;
 
-   u_surface_default_template(&surf_tmpl, stimg.texture, usage);
+   u_surface_default_template(&surf_tmpl, stimg.texture);
    surf_tmpl.u.tex.level = stimg.level;
    surf_tmpl.u.tex.first_layer = stimg.layer;
    surf_tmpl.u.tex.last_layer = stimg.layer;
diff --git a/mesalib/src/mesa/state_tracker/st_manager.h b/mesalib/src/mesa/state_tracker/st_manager.h
index 6a9497839..f729cff1f 100644
--- a/mesalib/src/mesa/state_tracker/st_manager.h
+++ b/mesalib/src/mesa/state_tracker/st_manager.h
@@ -36,8 +36,7 @@
 struct st_context;
 
 struct pipe_surface *
-st_manager_get_egl_image_surface(struct st_context *st,
-                                 void *eglimg, unsigned usage);
+st_manager_get_egl_image_surface(struct st_context *st, void *eglimg);
 
 void
 st_manager_flush_frontbuffer(struct st_context *st);
diff --git a/mesalib/src/mesa/swrast/s_context.h b/mesalib/src/mesa/swrast/s_context.h
index 18353c416..f3f188e47 100644
--- a/mesalib/src/mesa/swrast/s_context.h
+++ b/mesalib/src/mesa/swrast/s_context.h
@@ -45,6 +45,7 @@
 
 #include "main/compiler.h"
 #include "main/mtypes.h"
+#include "main/texcompress.h"
 #include "program/prog_execute.h"
 #include "swrast.h"
 #include "s_fragprog.h"
@@ -146,6 +147,9 @@ struct swrast_texture_image
    GLubyte *Buffer;
 
    FetchTexelFunc FetchTexel;
+
+   /** For fetching texels from compressed textures */
+   compressed_fetch_func FetchCompressedTexel;
 };
 
 
diff --git a/mesalib/src/mesa/swrast/s_texfetch.c b/mesalib/src/mesa/swrast/s_texfetch.c
index 86b01a0b3..1f1964172 100644
--- a/mesalib/src/mesa/swrast/s_texfetch.c
+++ b/mesalib/src/mesa/swrast/s_texfetch.c
@@ -88,6 +88,23 @@ nonlinear_to_linear(GLubyte cs8)
 #define DIM 3
 #include "s_texfetch_tmp.h"
 
+
+/**
+ * All compressed texture texel fetching is done though this function.
+ * Basically just call a core-Mesa texel fetch function.
+ */
+static void
+fetch_compressed(const struct swrast_texture_image *swImage,
+                 GLint i, GLint j, GLint k, GLfloat *texel)
+{
+   swImage->FetchCompressedTexel(swImage->Map,
+                                 swImage->ImageOffsets,
+                                 swImage->RowStride,
+                                 i, j, k, texel);
+}
+
+
+
 /**
  * Null texel fetch function.
  *
@@ -426,64 +443,64 @@ texfetch_funcs[] =
    },
    {
       MESA_FORMAT_SRGB_DXT1,
-      _mesa_fetch_texel_srgb_dxt1,
-      _mesa_fetch_texel_srgb_dxt1,
-      _mesa_fetch_texel_srgb_dxt1
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_SRGBA_DXT1,
-      _mesa_fetch_texel_srgba_dxt1,
-      _mesa_fetch_texel_srgba_dxt1,
-      _mesa_fetch_texel_srgba_dxt1
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_SRGBA_DXT3,
-      _mesa_fetch_texel_srgba_dxt3,
-      _mesa_fetch_texel_srgba_dxt3,
-      _mesa_fetch_texel_srgba_dxt3
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_SRGBA_DXT5,
-      _mesa_fetch_texel_srgba_dxt5,
-      _mesa_fetch_texel_srgba_dxt5,
-      _mesa_fetch_texel_srgba_dxt5
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
 
    {
       MESA_FORMAT_RGB_FXT1,
-      NULL,
-      _mesa_fetch_texel_2d_f_rgb_fxt1,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_RGBA_FXT1,
-      NULL,
-      _mesa_fetch_texel_2d_f_rgba_fxt1,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_RGB_DXT1,
-      _mesa_fetch_texel_rgb_dxt1,
-      _mesa_fetch_texel_rgb_dxt1,
-      _mesa_fetch_texel_rgb_dxt1
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_RGBA_DXT1,
-      _mesa_fetch_texel_rgba_dxt1,
-      _mesa_fetch_texel_rgba_dxt1,
-      _mesa_fetch_texel_rgba_dxt1
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_RGBA_DXT3,
-      _mesa_fetch_texel_rgba_dxt3,
-      _mesa_fetch_texel_rgba_dxt3,
-      _mesa_fetch_texel_rgba_dxt3
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_RGBA_DXT5,
-      _mesa_fetch_texel_rgba_dxt5,
-      _mesa_fetch_texel_rgba_dxt5,
-      _mesa_fetch_texel_rgba_dxt5
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_RGBA_FLOAT32,
@@ -976,117 +993,117 @@ texfetch_funcs[] =
    },
    {
       MESA_FORMAT_RED_RGTC1,
-      _mesa_fetch_texel_red_rgtc1,
-      _mesa_fetch_texel_red_rgtc1,
-      _mesa_fetch_texel_red_rgtc1
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_SIGNED_RED_RGTC1,
-      _mesa_fetch_texel_signed_red_rgtc1,
-      _mesa_fetch_texel_signed_red_rgtc1,
-      _mesa_fetch_texel_signed_red_rgtc1
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_RG_RGTC2,
-      _mesa_fetch_texel_rg_rgtc2,
-      _mesa_fetch_texel_rg_rgtc2,
-      _mesa_fetch_texel_rg_rgtc2
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_SIGNED_RG_RGTC2,
-      _mesa_fetch_texel_signed_rg_rgtc2,
-      _mesa_fetch_texel_signed_rg_rgtc2,
-      _mesa_fetch_texel_signed_rg_rgtc2
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_L_LATC1,
-      _mesa_fetch_texel_l_latc1,
-      _mesa_fetch_texel_l_latc1,
-      _mesa_fetch_texel_l_latc1
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_SIGNED_L_LATC1,
-      _mesa_fetch_texel_signed_l_latc1,
-      _mesa_fetch_texel_signed_l_latc1,
-      _mesa_fetch_texel_signed_l_latc1
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_LA_LATC2,
-      _mesa_fetch_texel_la_latc2,
-      _mesa_fetch_texel_la_latc2,
-      _mesa_fetch_texel_la_latc2
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_SIGNED_LA_LATC2,
-      _mesa_fetch_texel_signed_la_latc2,
-      _mesa_fetch_texel_signed_la_latc2,
-      _mesa_fetch_texel_signed_la_latc2
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_ETC1_RGB8,
-      NULL,
-      _mesa_fetch_texel_2d_f_etc1_rgb8,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_ETC2_RGB8,
-      NULL,
-      _mesa_fetch_texel_2d_f_etc2_rgb8,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_ETC2_SRGB8,
-      NULL,
-      _mesa_fetch_texel_2d_f_etc2_srgb8,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_ETC2_RGBA8_EAC,
-      NULL,
-      _mesa_fetch_texel_2d_f_etc2_rgba8_eac,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC,
-      NULL,
-      _mesa_fetch_texel_2d_f_etc2_srgb8_alpha8_eac,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_ETC2_R11_EAC,
-      NULL,
-      _mesa_fetch_texel_2d_f_etc2_r11_eac,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_ETC2_RG11_EAC,
-      NULL,
-      _mesa_fetch_texel_2d_f_etc2_rg11_eac,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_ETC2_SIGNED_R11_EAC,
-      NULL,
-      _mesa_fetch_texel_2d_f_etc2_signed_r11_eac,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_ETC2_SIGNED_RG11_EAC,
-      NULL,
-      _mesa_fetch_texel_2d_f_etc2_signed_rg11_eac,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1,
-      NULL,
-      _mesa_fetch_texel_2d_f_etc2_rgb8_punchthrough_alpha1,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1,
-      NULL,
-      _mesa_fetch_texel_2d_f_etc2_srgb8_punchthrough_alpha1,
-      NULL
+      fetch_compressed,
+      fetch_compressed,
+      fetch_compressed
    },
    {
       MESA_FORMAT_SIGNED_A8,
@@ -1175,9 +1192,15 @@ texfetch_funcs[] =
 };
 
 
-FetchTexelFunc
-_mesa_get_texel_fetch_func(gl_format format, GLuint dims)
+/**
+ * Initialize the texture image's FetchTexel methods.
+ */
+static void
+set_fetch_functions(const struct gl_sampler_object *samp,
+                    struct swrast_texture_image *texImage, GLuint dims)
 {
+   gl_format format = texImage->Base.TexFormat;
+
 #ifdef DEBUG
    /* check that the table entries are sorted by format name */
    gl_format fmt;
@@ -1188,39 +1211,29 @@ _mesa_get_texel_fetch_func(gl_format format, GLuint dims)
 
    STATIC_ASSERT(Elements(texfetch_funcs) == MESA_FORMAT_COUNT);
 
+   if (samp->sRGBDecode == GL_SKIP_DECODE_EXT &&
+       _mesa_get_format_color_encoding(format) == GL_SRGB) {
+      format = _mesa_get_srgb_format_linear(format);
+   }
+
    assert(format < MESA_FORMAT_COUNT);
 
    switch (dims) {
    case 1:
-      return texfetch_funcs[format].Fetch1D;
+      texImage->FetchTexel = texfetch_funcs[format].Fetch1D;
+      break;
    case 2:
-      return texfetch_funcs[format].Fetch2D;
+      texImage->FetchTexel = texfetch_funcs[format].Fetch2D;
+      break;
    case 3:
-      return texfetch_funcs[format].Fetch3D;
+      texImage->FetchTexel = texfetch_funcs[format].Fetch3D;
+      break;
    default:
-      assert(0 && "bad dims in _mesa_get_texel_fetch_func");
-      return NULL;
+      assert(!"Bad dims in set_fetch_functions()");
    }
-}
-
 
-/**
- * Initialize the texture image's FetchTexel methods.
- */
-static void
-set_fetch_functions(struct gl_sampler_object *samp,
-                    struct swrast_texture_image *texImage, GLuint dims)
-{
-   gl_format format = texImage->Base.TexFormat;
-
-   ASSERT(dims == 1 || dims == 2 || dims == 3);
-
-   if (samp->sRGBDecode == GL_SKIP_DECODE_EXT &&
-       _mesa_get_format_color_encoding(format) == GL_SRGB) {
-      format = _mesa_get_srgb_format_linear(format);
-   }
+   texImage->FetchCompressedTexel = _mesa_get_compressed_fetch_func(format);
 
-   texImage->FetchTexel = _mesa_get_texel_fetch_func(format, dims);
    ASSERT(texImage->FetchTexel);
 }
 
diff --git a/mesalib/src/mesa/swrast/s_texfetch.h b/mesalib/src/mesa/swrast/s_texfetch.h
index 33950ce44..4e4397e13 100644
--- a/mesalib/src/mesa/swrast/s_texfetch.h
+++ b/mesalib/src/mesa/swrast/s_texfetch.h
@@ -29,9 +29,6 @@
 
 #include "swrast/s_context.h"
 
-extern FetchTexelFunc
-_mesa_get_texel_fetch_func(gl_format format, GLuint dims);
-
 void
 _mesa_update_fetch_functions(struct gl_context *ctx, GLuint unit);
 
diff --git a/mesalib/src/mesa/vbo/vbo_exec.c b/mesalib/src/mesa/vbo/vbo_exec.c
index 81a4d25ff..361d7a3e4 100644
--- a/mesalib/src/mesa/vbo/vbo_exec.c
+++ b/mesalib/src/mesa/vbo/vbo_exec.c
@@ -49,10 +49,6 @@ void vbo_exec_init( struct gl_context *ctx )
    vbo_exec_vtx_init( exec );
    vbo_exec_array_init( exec );
 
-   /* Hook our functions into exec and compile dispatch tables.
-    */
-   _mesa_install_exec_vtxfmt( ctx, &exec->vtxfmt );
-
    ctx->Driver.NeedFlush = 0;
    ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;
    ctx->Driver.BeginVertices = vbo_exec_BeginVertices;
diff --git a/mesalib/src/mesa/vbo/vbo_exec_api.c b/mesalib/src/mesa/vbo/vbo_exec_api.c
index 2aaa2895c..657c9aaee 100644
--- a/mesalib/src/mesa/vbo/vbo_exec_api.c
+++ b/mesalib/src/mesa/vbo/vbo_exec_api.c
@@ -1120,10 +1120,6 @@ void vbo_exec_vtx_init( struct vbo_exec_context *exec )
    vbo_exec_vtxfmt_init( exec );
    _mesa_noop_vtxfmt_init(&exec->vtxfmt_noop);
 
-   /* Hook our functions into the dispatch table.
-    */
-   _mesa_install_exec_vtxfmt( ctx, &exec->vtxfmt );
-
    for (i = 0 ; i < VBO_ATTRIB_MAX ; i++) {
       ASSERT(i < Elements(exec->vtx.attrsz));
       exec->vtx.attrsz[i] = 0;
diff --git a/mesalib/src/mesa/vbo/vbo_save_api.c b/mesalib/src/mesa/vbo/vbo_save_api.c
index 75b8ca338..b4c90a05c 100644
--- a/mesalib/src/mesa/vbo/vbo_save_api.c
+++ b/mesalib/src/mesa/vbo/vbo_save_api.c
@@ -1667,5 +1667,4 @@ vbo_save_api_init(struct vbo_save_context *save)
    ctx->ListState.ListVtxfmt.DrawRangeElements = _save_OBE_DrawRangeElements;
    ctx->ListState.ListVtxfmt.MultiDrawElementsEXT = _save_OBE_MultiDrawElements;
    ctx->ListState.ListVtxfmt.MultiDrawElementsBaseVertex = _save_OBE_MultiDrawElementsBaseVertex;
-   _mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
 }