Merge remote branch 'origin/master' into lp-setup-llvm

Conflicts:
	src/gallium/drivers/llvmpipe/lp_setup_coef.c
	src/gallium/drivers/llvmpipe/lp_setup_coef.h
	src/gallium/drivers/llvmpipe/lp_setup_coef_intrin.c
	src/gallium/drivers/llvmpipe/lp_setup_point.c
	src/gallium/drivers/llvmpipe/lp_setup_tri.c
	src/gallium/drivers/llvmpipe/lp_state_derived.c
	src/gallium/drivers/llvmpipe/lp_state_fs.h

14 files changed, 599 insertions, 42 deletions

diff --git a/src/gallium/auxiliary/util/u_atomic.h b/src/gallium/auxiliary/util/u_atomic.h
index a156823390..8434491a42 100644
--- a/src/gallium/auxiliary/util/u_atomic.h
+++ b/src/gallium/auxiliary/util/u_atomic.h
@@ -29,6 +29,8 @@
 #define PIPE_ATOMIC_ASM_MSVC_X86                
 #elif (defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86))
 #define PIPE_ATOMIC_ASM_GCC_X86
+#elif (defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86_64))
+#define PIPE_ATOMIC_ASM_GCC_X86_64
 #elif defined(PIPE_CC_GCC) && (PIPE_CC_GCC_VERSION >= 401)
 #define PIPE_ATOMIC_GCC_INTRINSIC
 #else
@@ -36,6 +38,51 @@
 #endif
 
 
+#if defined(PIPE_ATOMIC_ASM_GCC_X86_64)
+#define PIPE_ATOMIC "GCC x86_64 assembly"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define p_atomic_set(_v, _i) (*(_v) = (_i))
+#define p_atomic_read(_v) (*(_v))
+
+static INLINE boolean
+p_atomic_dec_zero(int32_t *v)
+{
+   unsigned char c;
+
+   __asm__ __volatile__("lock; decl %0; sete %1":"+m"(*v), "=qm"(c)
+			::"memory");
+
+   return c != 0;
+}
+
+static INLINE void
+p_atomic_inc(int32_t *v)
+{
+   __asm__ __volatile__("lock; incl %0":"+m"(*v));
+}
+
+static INLINE void
+p_atomic_dec(int32_t *v)
+{
+   __asm__ __volatile__("lock; decl %0":"+m"(*v));
+}
+
+static INLINE int32_t
+p_atomic_cmpxchg(int32_t *v, int32_t old, int32_t _new)
+{
+   return __sync_val_compare_and_swap(v, old, _new);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PIPE_ATOMIC_ASM_GCC_X86_64 */
+
 
 #if defined(PIPE_ATOMIC_ASM_GCC_X86)
 
diff --git a/src/gallium/auxiliary/util/u_blitter.c b/src/gallium/auxiliary/util/u_blitter.c
index f93ef26ae7..a163f93cb8 100644
--- a/src/gallium/auxiliary/util/u_blitter.c
+++ b/src/gallium/auxiliary/util/u_blitter.c
@@ -268,7 +268,7 @@ void util_blitter_destroy(struct blitter_context *blitter)
          pipe->delete_fs_state(pipe, ctx->fs_texfetch_depth[i]);
    }
 
-   for (i = 0; i <= PIPE_MAX_COLOR_BUFS && ctx->fs_col[i]; i++)
+   for (i = 0; i <= PIPE_MAX_COLOR_BUFS; i++)
       if (ctx->fs_col[i])
          pipe->delete_fs_state(pipe, ctx->fs_col[i]);
 
@@ -964,16 +964,18 @@ void util_blitter_clear_depth_stencil(struct blitter_context *blitter,
    blitter_restore_CSOs(ctx);
 }
 
-/* Clear a region of a depth stencil surface. */
-void util_blitter_flush_depth_stencil(struct blitter_context *blitter,
-                                      struct pipe_surface *dstsurf)
+/* draw a rectangle across a region using a custom dsa stage - for r600g */
+void util_blitter_custom_depth_stencil(struct blitter_context *blitter,
+				       struct pipe_surface *zsurf,
+				       struct pipe_surface *cbsurf,
+				       void *dsa_stage, float depth)
 {
    struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
    struct pipe_context *pipe = ctx->base.pipe;
    struct pipe_framebuffer_state fb_state;
 
-   assert(dstsurf->texture);
-   if (!dstsurf->texture)
+   assert(zsurf->texture);
+   if (!zsurf->texture)
       return;
 
    /* check the saved state */
@@ -981,8 +983,8 @@ void util_blitter_flush_depth_stencil(struct blitter_context *blitter,
    assert(blitter->saved_fb_state.nr_cbufs != ~0);
 
    /* bind CSOs */
-   pipe->bind_blend_state(pipe, ctx->blend_keep_color);
-   pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_flush_depth_stencil);
+   pipe->bind_blend_state(pipe, ctx->blend_write_color);
+   pipe->bind_depth_stencil_alpha_state(pipe, dsa_stage);
 
    pipe->bind_rasterizer_state(pipe, ctx->rs_state);
    pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 0));
@@ -990,15 +992,30 @@ void util_blitter_flush_depth_stencil(struct blitter_context *blitter,
    pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
 
    /* set a framebuffer state */
-   fb_state.width = dstsurf->width;
-   fb_state.height = dstsurf->height;
-   fb_state.nr_cbufs = 0;
-   fb_state.cbufs[0] = 0;
-   fb_state.zsbuf = dstsurf;
+   fb_state.width = zsurf->width;
+   fb_state.height = zsurf->height;
+   fb_state.nr_cbufs = 1;
+   if (cbsurf) {
+	   fb_state.cbufs[0] = cbsurf;
+	   fb_state.nr_cbufs = 1;
+   } else {
+	   fb_state.cbufs[0] = NULL;
+	   fb_state.nr_cbufs = 0;
+   }
+   fb_state.zsbuf = zsurf;
    pipe->set_framebuffer_state(pipe, &fb_state);
 
-   blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height);
-   blitter->draw_rectangle(blitter, 0, 0, dstsurf->width, dstsurf->height, 0,
+   blitter_set_dst_dimensions(ctx, zsurf->width, zsurf->height);
+   blitter->draw_rectangle(blitter, 0, 0, zsurf->width, zsurf->height, depth,
                            UTIL_BLITTER_ATTRIB_NONE, NULL);
    blitter_restore_CSOs(ctx);
 }
+
+/* flush a region of a depth stencil surface for r300g */
+void util_blitter_flush_depth_stencil(struct blitter_context *blitter,
+                                      struct pipe_surface *dstsurf)
+{
+	struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
+	util_blitter_custom_depth_stencil(blitter, dstsurf, NULL,
+					  ctx->dsa_flush_depth_stencil, 0.0f);
+}
diff --git a/src/gallium/auxiliary/util/u_blitter.h b/src/gallium/auxiliary/util/u_blitter.h
index e33d2e283f..f9f96f25c7 100644
--- a/src/gallium/auxiliary/util/u_blitter.h
+++ b/src/gallium/auxiliary/util/u_blitter.h
@@ -203,6 +203,12 @@ void util_blitter_clear_depth_stencil(struct blitter_context *blitter,
 
 void util_blitter_flush_depth_stencil(struct blitter_context *blitter,
                                       struct pipe_surface *dstsurf);
+
+void util_blitter_custom_depth_stencil(struct blitter_context *blitter,
+				       struct pipe_surface *zsurf,
+				       struct pipe_surface *cbsurf,
+				       void *dsa_stage, float depth);
+
 /* The functions below should be used to save currently bound constant state
  * objects inside a driver. The objects are automatically restored at the end
  * of the util_blitter_{clear, copy_region, fill_region} functions and then
diff --git a/src/gallium/auxiliary/util/u_format.csv b/src/gallium/auxiliary/util/u_format.csv
index 016e73c4a1..1fbd83841c 100644
--- a/src/gallium/auxiliary/util/u_format.csv
+++ b/src/gallium/auxiliary/util/u_format.csv
@@ -109,9 +109,12 @@ PIPE_FORMAT_Z32_UNORM               , plain, 1, 1, un32,     ,     ,     , x___,
 PIPE_FORMAT_Z32_FLOAT               , plain, 1, 1, f32 ,     ,     ,     , x___, zs
 PIPE_FORMAT_Z24_UNORM_S8_USCALED    , plain, 1, 1, un24, u8  ,     ,     , xy__, zs
 PIPE_FORMAT_S8_USCALED_Z24_UNORM    , plain, 1, 1, u8 ,  un24,     ,     , yx__, zs
+PIPE_FORMAT_X24S8_USCALED           , plain, 1, 1, x24,  u8  ,     ,     , _y__, zs
+PIPE_FORMAT_S8X24_USCALED           , plain, 1, 1, u8  , x24 ,     ,     , _x__, zs
 PIPE_FORMAT_Z24X8_UNORM             , plain, 1, 1, un24, x8  ,     ,     , x___, zs
 PIPE_FORMAT_X8Z24_UNORM             , plain, 1, 1, x8  , un24,     ,     , y___, zs
 PIPE_FORMAT_Z32_FLOAT_S8X24_USCALED , plain, 1, 1, f32,  u8  , x24 ,     , xy__, zs
+PIPE_FORMAT_X32_S8X24_USCALED       , plain, 1, 1, x32,  u8  , x24 ,     , _y__, zs
 
 # YUV formats
 # http://www.fourcc.org/yuv.php#UYVY
diff --git a/src/gallium/auxiliary/util/u_format_zs.c b/src/gallium/auxiliary/util/u_format_zs.c
index 792d69c214..80081e22f7 100644
--- a/src/gallium/auxiliary/util/u_format_zs.c
+++ b/src/gallium/auxiliary/util/u_format_zs.c
@@ -918,3 +918,56 @@ util_format_z32_float_s8x24_uscaled_pack_s_8uscaled(uint8_t *dst_row, unsigned d
    }
 }
 
+
+void
+util_format_x24s8_uscaled_unpack_s_8uscaled(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
+{
+   util_format_z24_unorm_s8_uscaled_unpack_s_8uscaled(dst_row, dst_stride,
+						      src_row, src_stride,
+						      width, height);
+}
+
+void
+util_format_x24s8_uscaled_pack_s_8uscaled(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
+{
+   util_format_z24_unorm_s8_uscaled_pack_s_8uscaled(dst_row, dst_stride,
+						    src_row, src_stride,
+						    width, height);
+}
+
+void
+util_format_s8x24_uscaled_unpack_s_8uscaled(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
+{
+   util_format_s8_uscaled_z24_unorm_unpack_s_8uscaled(dst_row, dst_stride,
+						      src_row, src_stride,
+						      width, height);
+}
+
+void
+util_format_s8x24_uscaled_pack_s_8uscaled(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
+{
+   util_format_s8_uscaled_z24_unorm_pack_s_8uscaled(dst_row, dst_stride,
+						      src_row, src_stride,
+						      width, height);
+}
+
+void
+util_format_x32_s8x24_uscaled_unpack_s_8uscaled(uint8_t *dst_row, unsigned dst_stride,
+						const uint8_t *src_row, unsigned src_stride,
+						unsigned width, unsigned height)
+{
+   util_format_z32_float_s8x24_uscaled_unpack_s_8uscaled(dst_row, dst_stride,
+							 src_row, src_stride,
+							 width, height);
+
+}
+
+void
+util_format_x32_s8x24_uscaled_pack_s_8uscaled(uint8_t *dst_row, unsigned dst_stride,
+					      const uint8_t *src_row, unsigned src_stride,
+					      unsigned width, unsigned height)
+{
+   util_format_z32_float_s8x24_uscaled_pack_s_8uscaled(dst_row, dst_stride,
+                                                       src_row, src_stride,
+						       width, height);
+}
diff --git a/src/gallium/auxiliary/util/u_format_zs.h b/src/gallium/auxiliary/util/u_format_zs.h
index 650db4b95f..1604cc3eee 100644
--- a/src/gallium/auxiliary/util/u_format_zs.h
+++ b/src/gallium/auxiliary/util/u_format_zs.h
@@ -192,5 +192,21 @@ util_format_z32_float_s8x24_uscaled_unpack_s_8uscaled(uint8_t *dst_row, unsigned
 void
 util_format_z32_float_s8x24_uscaled_pack_s_8uscaled(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height);
 
+void
+util_format_x24s8_uscaled_unpack_s_8uscaled(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height);
+
+void
+util_format_x24s8_uscaled_pack_s_8uscaled(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height);
+
+void
+util_format_s8x24_uscaled_unpack_s_8uscaled(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height);
 
+void
+util_format_s8x24_uscaled_pack_s_8uscaled(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height);
+
+void
+util_format_x32_s8x24_uscaled_unpack_s_8uscaled(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height);
+
+void
+util_format_x32_s8x24_uscaled_pack_s_8uscaled(uint8_t *dst_row, unsigned dst_sride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height);
 #endif /* U_FORMAT_ZS_H_ */
diff --git a/src/gallium/auxiliary/util/u_index_modify.c b/src/gallium/auxiliary/util/u_index_modify.c
new file mode 100644
index 0000000000..65b079ed53
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_index_modify.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2010 Marek Olšák <maraeo@gmail.com>
+ *
+ * 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
+ * on 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 AUTHOR(S) AND/OR THEIR 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. */
+
+#include "pipe/p_context.h"
+#include "util/u_index_modify.h"
+#include "util/u_inlines.h"
+
+void util_shorten_ubyte_elts(struct pipe_context *context,
+			     struct pipe_resource **elts,
+			     int index_bias,
+			     unsigned start,
+			     unsigned count)
+{
+    struct pipe_screen* screen = context->screen;
+    struct pipe_resource* new_elts;
+    unsigned char *in_map;
+    unsigned short *out_map;
+    struct pipe_transfer *src_transfer, *dst_transfer;
+    unsigned i;
+
+    new_elts = pipe_buffer_create(screen,
+                                  PIPE_BIND_INDEX_BUFFER,
+                                  2 * count);
+
+    in_map = pipe_buffer_map(context, *elts, PIPE_TRANSFER_READ, &src_transfer);
+    out_map = pipe_buffer_map(context, new_elts, PIPE_TRANSFER_WRITE, &dst_transfer);
+
+    in_map += start;
+
+    for (i = 0; i < count; i++) {
+        *out_map = (unsigned short)(*in_map + index_bias);
+        in_map++;
+        out_map++;
+    }
+
+    pipe_buffer_unmap(context, *elts, src_transfer);
+    pipe_buffer_unmap(context, new_elts, dst_transfer);
+
+    *elts = new_elts;
+}
+
+void util_rebuild_ushort_elts(struct pipe_context *context,
+			      struct pipe_resource **elts,
+			      int index_bias,
+			      unsigned start, unsigned count)
+{
+    struct pipe_transfer *in_transfer = NULL;
+    struct pipe_transfer *out_transfer = NULL;
+    struct pipe_resource *new_elts;
+    unsigned short *in_map;
+    unsigned short *out_map;
+    unsigned i;
+
+    new_elts = pipe_buffer_create(context->screen,
+                                  PIPE_BIND_INDEX_BUFFER,
+                                  2 * count);
+
+    in_map = pipe_buffer_map(context, *elts,
+                             PIPE_TRANSFER_READ, &in_transfer);
+    out_map = pipe_buffer_map(context, new_elts,
+                              PIPE_TRANSFER_WRITE, &out_transfer);
+
+    in_map += start;
+    for (i = 0; i < count; i++) {
+        *out_map = (unsigned short)(*in_map + index_bias);
+        in_map++;
+        out_map++;
+    }
+
+    pipe_buffer_unmap(context, *elts, in_transfer);
+    pipe_buffer_unmap(context, new_elts, out_transfer);
+
+    *elts = new_elts;
+}
+
+void util_rebuild_uint_elts(struct pipe_context *context,
+			    struct pipe_resource **elts,
+			    int index_bias,
+			    unsigned start, unsigned count)
+{
+    struct pipe_transfer *in_transfer = NULL;
+    struct pipe_transfer *out_transfer = NULL;
+    struct pipe_resource *new_elts;
+    unsigned int *in_map;
+    unsigned int *out_map;
+    unsigned i;
+
+    new_elts = pipe_buffer_create(context->screen,
+                                  PIPE_BIND_INDEX_BUFFER,
+                                  2 * count);
+
+    in_map = pipe_buffer_map(context, *elts,
+                             PIPE_TRANSFER_READ, &in_transfer);
+    out_map = pipe_buffer_map(context, new_elts,
+                              PIPE_TRANSFER_WRITE, &out_transfer);
+
+    in_map += start;
+    for (i = 0; i < count; i++) {
+        *out_map = (unsigned int)(*in_map + index_bias);
+        in_map++;
+        out_map++;
+    }
+
+    pipe_buffer_unmap(context, *elts, in_transfer);
+    pipe_buffer_unmap(context, new_elts, out_transfer);
+
+    *elts = new_elts;
+}
diff --git a/src/gallium/auxiliary/util/u_index_modify.h b/src/gallium/auxiliary/util/u_index_modify.h
new file mode 100644
index 0000000000..01a6cae94f
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_index_modify.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2010 Marek Olšák <maraeo@gmail.com>
+ *
+ * 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
+ * on 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 AUTHOR(S) AND/OR THEIR 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. */
+
+#ifndef UTIL_INDEX_MODIFY_H
+#define UTIL_INDEX_MODIFY_H
+
+void util_shorten_ubyte_elts(struct pipe_context *context,
+			     struct pipe_resource **elts,
+			     int index_bias,
+			     unsigned start,
+			     unsigned count);
+
+void util_rebuild_ushort_elts(struct pipe_context *context,
+			      struct pipe_resource **elts,
+			      int index_bias,
+			      unsigned start, unsigned count);
+
+void util_rebuild_uint_elts(struct pipe_context *context,
+			    struct pipe_resource **elts,
+			    int index_bias,
+			    unsigned start, unsigned count);
+#endif
diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h
index 69a7681494..37294b7203 100644
--- a/src/gallium/auxiliary/util/u_math.h
+++ b/src/gallium/auxiliary/util/u_math.h
@@ -118,6 +118,11 @@ __inline double __cdecl atan2(double val)
 #endif
 
 
+#ifndef M_SQRT2
+#define M_SQRT2 1.41421356237309504880
+#endif
+
+
 #if defined(_MSC_VER) 
 
 #if _MSC_VER < 1400 && !defined(__cplusplus) || defined(PIPE_SUBSYSTEM_WINDOWS_CE)
diff --git a/src/gallium/auxiliary/util/u_pack_color.h b/src/gallium/auxiliary/util/u_pack_color.h
index aae8b8bdf1..5378f2d782 100644
--- a/src/gallium/auxiliary/util/u_pack_color.h
+++ b/src/gallium/auxiliary/util/u_pack_color.h
@@ -394,7 +394,7 @@ util_pack_color(const float rgba[4], enum pipe_format format, union util_color *
       return;
    case PIPE_FORMAT_B4G4R4A4_UNORM:
       {
-         uc->ub = ((a & 0xf0) << 8) | ((r & 0xf0) << 4) | ((g & 0xf0) << 0) | (b >> 4);
+         uc->us = ((a & 0xf0) << 8) | ((r & 0xf0) << 4) | ((g & 0xf0) << 0) | (b >> 4);
       }
       return;
    case PIPE_FORMAT_A8_UNORM:
@@ -434,8 +434,8 @@ util_pack_color(const float rgba[4], enum pipe_format format, union util_color *
 /* Integer versions of util_pack_z and util_pack_z_stencil - useful for
  * constructing clear masks.
  */
-static INLINE uint
-util_pack_uint_z(enum pipe_format format, unsigned z)
+static INLINE uint32_t
+util_pack_mask_z(enum pipe_format format, uint32_t z)
 {
    switch (format) {
    case PIPE_FORMAT_Z16_UNORM:
@@ -452,29 +452,32 @@ util_pack_uint_z(enum pipe_format format, unsigned z)
    case PIPE_FORMAT_S8_USCALED:
       return 0;
    default:
-      debug_print_format("gallium: unhandled format in util_pack_z()", format);
+      debug_print_format("gallium: unhandled format in util_pack_mask_z()", format);
       assert(0);
       return 0;
    }
 }
 
-static INLINE uint
-util_pack_uint_z_stencil(enum pipe_format format, double z, uint s)
+static INLINE uint32_t
+util_pack_mask_z_stencil(enum pipe_format format, uint32_t z, uint8_t s)
 {
-   unsigned packed = util_pack_uint_z(format, z);
-
-   s &= 0xff;
+   uint32_t packed = util_pack_mask_z(format, z);
 
    switch (format) {
    case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
-      return packed | (s << 24);
+      packed |= (uint32_t)s << 24;
+      break;
    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
-      return packed | s;
+      packed |= s;
+      break;
    case PIPE_FORMAT_S8_USCALED:
-      return packed | s;
+      packed |= s;
+      break;
    default:
-      return packed;
+      break;
    }
+
+   return packed;
 }
 
 
@@ -482,9 +485,11 @@ util_pack_uint_z_stencil(enum pipe_format format, double z, uint s)
 /**
  * Note: it's assumed that z is in [0,1]
  */
-static INLINE uint
+static INLINE uint32_t
 util_pack_z(enum pipe_format format, double z)
 {
+   union fi fui;
+
    if (z == 0.0)
       return 0;
 
@@ -492,24 +497,25 @@ util_pack_z(enum pipe_format format, double z)
    case PIPE_FORMAT_Z16_UNORM:
       if (z == 1.0)
          return 0xffff;
-      return (uint) (z * 0xffff);
+      return (uint32_t) (z * 0xffff);
    case PIPE_FORMAT_Z32_UNORM:
       /* special-case to avoid overflow */
       if (z == 1.0)
          return 0xffffffff;
-      return (uint) (z * 0xffffffff);
+      return (uint32_t) (z * 0xffffffff);
    case PIPE_FORMAT_Z32_FLOAT:
-      return (uint)z;
+      fui.f = (float)z;
+      return fui.ui;
    case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
    case PIPE_FORMAT_Z24X8_UNORM:
       if (z == 1.0)
          return 0xffffff;
-      return (uint) (z * 0xffffff);
+      return (uint32_t) (z * 0xffffff);
    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
    case PIPE_FORMAT_X8Z24_UNORM:
       if (z == 1.0)
          return 0xffffff00;
-      return ((uint) (z * 0xffffff)) << 8;
+      return ((uint32_t) (z * 0xffffff)) << 8;
    case PIPE_FORMAT_S8_USCALED:
       /* this case can get it via util_pack_z_stencil() */
       return 0;
@@ -525,14 +531,14 @@ util_pack_z(enum pipe_format format, double z)
  * Pack Z and/or stencil values into a 32-bit value described by format.
  * Note: it's assumed that z is in [0,1] and s in [0,255]
  */
-static INLINE uint
-util_pack_z_stencil(enum pipe_format format, double z, uint s)
+static INLINE uint32_t
+util_pack_z_stencil(enum pipe_format format, double z, uint8_t s)
 {
-   unsigned packed = util_pack_z(format, z);
+   uint32_t packed = util_pack_z(format, z);
 
    switch (format) {
    case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
-      packed |= s << 24;
+      packed |= (uint32_t)s << 24;
       break;
    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
       packed |= s;
diff --git a/src/gallium/auxiliary/util/u_simple_list.h b/src/gallium/auxiliary/util/u_simple_list.h
index f5f43b0faa..fe59771371 100644
--- a/src/gallium/auxiliary/util/u_simple_list.h
+++ b/src/gallium/auxiliary/util/u_simple_list.h
@@ -46,6 +46,8 @@
 do {						\
    (elem)->next->prev = (elem)->prev;		\
    (elem)->prev->next = (elem)->next;		\
+   (elem)->next = elem;                         \
+   (elem)->prev = elem;                         \
 } while (0)
 
 /**
diff --git a/src/gallium/auxiliary/util/u_sse.h b/src/gallium/auxiliary/util/u_sse.h
index 87959ab0aa..1df6c87267 100644
--- a/src/gallium/auxiliary/util/u_sse.h
+++ b/src/gallium/auxiliary/util/u_sse.h
@@ -71,6 +71,96 @@ _mm_castps_si128(__m128 a)
 
 #endif /* defined(_MSC_VER) && _MSC_VER < 1500 */
 
+union m128i {
+   __m128i m;
+   ubyte ub[16];
+   ushort us[8];
+   uint ui[4];
+};
+
+static INLINE void u_print_epi8(const char *name, __m128i r)
+{
+   union { __m128i m; ubyte ub[16]; } u;
+   u.m = r;
+
+   debug_printf("%s: "
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x/"
+                "%02x\n",
+                name,
+                u.ub[0],  u.ub[1],  u.ub[2],  u.ub[3],
+                u.ub[4],  u.ub[5],  u.ub[6],  u.ub[7],
+                u.ub[8],  u.ub[9],  u.ub[10], u.ub[11],
+                u.ub[12], u.ub[13], u.ub[14], u.ub[15]);
+}
+
+static INLINE void u_print_epi16(const char *name, __m128i r)
+{
+   union { __m128i m; ushort us[8]; } u;
+   u.m = r;
+
+   debug_printf("%s: "
+                "%04x/"
+                "%04x/"
+                "%04x/"
+                "%04x/"
+                "%04x/"
+                "%04x/"
+                "%04x/"
+                "%04x\n",
+                name,
+                u.us[0],  u.us[1],  u.us[2],  u.us[3],
+                u.us[4],  u.us[5],  u.us[6],  u.us[7]);
+}
+
+static INLINE void u_print_epi32(const char *name, __m128i r)
+{
+   union { __m128i m; uint ui[4]; } u;
+   u.m = r;
+
+   debug_printf("%s: "
+                "%08x/"
+                "%08x/"
+                "%08x/"
+                "%08x\n",
+                name,
+                u.ui[0],  u.ui[1],  u.ui[2],  u.ui[3]);
+}
+
+static INLINE void u_print_ps(const char *name, __m128 r)
+{
+   union { __m128 m; float f[4]; } u;
+   u.m = r;
+
+   debug_printf("%s: "
+                "%f/"
+                "%f/"
+                "%f/"
+                "%f\n",
+                name,
+                u.f[0],  u.f[1],  u.f[2],  u.f[3]);
+}
+
+
+#define U_DUMP_EPI32(a) u_print_epi32(#a, a)
+#define U_DUMP_EPI16(a) u_print_epi16(#a, a)
+#define U_DUMP_EPI8(a)  u_print_epi8(#a, a)
+#define U_DUMP_PS(a)    u_print_ps(#a, a)
+
+
 
 #if defined(PIPE_ARCH_SSSE3)
 
@@ -78,8 +168,6 @@ _mm_castps_si128(__m128 a)
 
 #else /* !PIPE_ARCH_SSSE3 */
 
-#include <emmintrin.h>
-
 /**
  * Describe _mm_shuffle_epi8() with gcc extended inline assembly, for cases
  * where -mssse3 is not supported/enabled.
@@ -100,6 +188,68 @@ _mm_shuffle_epi8(__m128i a, __m128i mask)
 #endif /* !PIPE_ARCH_SSSE3 */
 
 
-#endif /* PIPE_ARCH_X86 || PIPE_ARCH_X86_64 */
+
+
+/* Provide an SSE2 implementation of _mm_mullo_epi32() in terms of
+ * _mm_mul_epu32().
+ *
+ * I suspect this works fine for us because one of our operands is
+ * always positive, but not sure that this can be used for general
+ * signed integer multiplication.
+ *
+ * This seems close enough to the speed of SSE4 and the real
+ * _mm_mullo_epi32() intrinsic as to not justify adding an sse4
+ * dependency at this point.
+ */
+static INLINE __m128i mm_mullo_epi32(const __m128i a, const __m128i b)
+{
+   __m128i a4   = _mm_srli_epi64(a, 32);  /* shift by one dword */
+   __m128i b4   = _mm_srli_epi64(b, 32);  /* shift by one dword */
+   __m128i ba   = _mm_mul_epu32(b, a);   /* multply dwords 0, 2 */
+   __m128i b4a4 = _mm_mul_epu32(b4, a4); /* multiply dwords 1, 3 */
+
+   /* Interleave the results, either with shuffles or (slightly
+    * faster) direct bit operations:
+    */
+#if 0
+   __m128i ba8             = _mm_shuffle_epi32(ba, 8);
+   __m128i b4a48           = _mm_shuffle_epi32(b4a4, 8);
+   __m128i result          = _mm_unpacklo_epi32(ba8, b4a48);
+#else
+   __m128i mask            = _mm_setr_epi32(~0,0,~0,0);
+   __m128i ba_mask         = _mm_and_si128(ba, mask);
+   __m128i b4a4_mask_shift = _mm_slli_epi64(b4a4, 32);
+   __m128i result          = _mm_or_si128(ba_mask, b4a4_mask_shift);
+#endif
+
+   return result;
+}
+
+
+static INLINE void
+transpose4_epi32(const __m128i * restrict a,
+                 const __m128i * restrict b,
+                 const __m128i * restrict c,
+                 const __m128i * restrict d,
+                 __m128i * restrict o,
+                 __m128i * restrict p,
+                 __m128i * restrict q,
+                 __m128i * restrict r)
+{
+  __m128i t0 = _mm_unpacklo_epi32(*a, *b);
+  __m128i t1 = _mm_unpacklo_epi32(*c, *d);
+  __m128i t2 = _mm_unpackhi_epi32(*a, *b);
+  __m128i t3 = _mm_unpackhi_epi32(*c, *d);
+
+  *o = _mm_unpacklo_epi64(t0, t1);
+  *p = _mm_unpackhi_epi64(t0, t1);
+  *q = _mm_unpacklo_epi64(t2, t3);
+  *r = _mm_unpackhi_epi64(t2, t3);
+}
+
+#define SCALAR_EPI32(m, i) _mm_shuffle_epi32((m), _MM_SHUFFLE(i,i,i,i))
+
+
+#endif /* PIPE_ARCH_SSE */
 
 #endif /* U_SSE_H_ */
diff --git a/src/gallium/auxiliary/util/u_surface.c b/src/gallium/auxiliary/util/u_surface.c
index af99163b2e..f78b6838a7 100644
--- a/src/gallium/auxiliary/util/u_surface.c
+++ b/src/gallium/auxiliary/util/u_surface.c
@@ -332,7 +332,7 @@ util_clear_depth_stencil(struct pipe_context *pipe,
                uint32_t *row = (uint32_t *)dst_map;
                for (j = 0; j < width; j++) {
                   uint32_t tmp = *row & dst_mask;
-                  *row++ = tmp & (zstencil & ~dst_mask);
+                  *row++ = tmp | (zstencil & ~dst_mask);
                }
                dst_map += dst_stride;
             }
diff --git a/src/gallium/auxiliary/util/u_tile.c b/src/gallium/auxiliary/util/u_tile.c
index f7aa1403d0..44cadbfcdd 100644
--- a/src/gallium/auxiliary/util/u_tile.c
+++ b/src/gallium/auxiliary/util/u_tile.c
@@ -217,6 +217,81 @@ z24s8_get_tile_rgba(const unsigned *src,
    }
 }
 
+/*** PIPE_FORMAT_S8X24_USCALED ***/
+
+/**
+ * Return S component as four uint32_t in [0..255].  Z part ignored.
+ */
+static void
+s8x24_get_tile_rgba(const unsigned *src,
+                    unsigned w, unsigned h,
+                    float *p,
+                    unsigned dst_stride)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+
+      for (j = 0; j < w; j++, pRow += 4) {
+         pRow[0] =
+         pRow[1] =
+         pRow[2] =
+         pRow[3] = (float)((*src++ >> 24) & 0xff);
+      }
+
+      p += dst_stride;
+   }
+}
+
+/*** PIPE_FORMAT_X24S8_USCALED ***/
+
+/**
+ * Return S component as four uint32_t in [0..255].  Z part ignored.
+ */
+static void
+x24s8_get_tile_rgba(const unsigned *src,
+                    unsigned w, unsigned h,
+                    float *p,
+                    unsigned dst_stride)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+      for (j = 0; j < w; j++, pRow += 4) {
+         pRow[0] =
+         pRow[1] =
+         pRow[2] =
+         pRow[3] = (float)(*src++ & 0xff);
+      }
+      p += dst_stride;
+   }
+}
+
+
+/**
+ * Return S component as four uint32_t in [0..255].  Z part ignored.
+ */
+static void
+s8_get_tile_rgba(const unsigned char *src,
+		 unsigned w, unsigned h,
+		 float *p,
+		 unsigned dst_stride)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+      for (j = 0; j < w; j++, pRow += 4) {
+         pRow[0] =
+         pRow[1] =
+         pRow[2] =
+         pRow[3] = (float)(*src++ & 0xff);
+      }
+      p += dst_stride;
+   }
+}
 
 /*** PIPE_FORMAT_Z32_FLOAT ***/
 
@@ -261,10 +336,19 @@ pipe_tile_raw_to_rgba(enum pipe_format format,
    case PIPE_FORMAT_Z24X8_UNORM:
       s8z24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
       break;
+   case PIPE_FORMAT_S8_USCALED:
+      s8_get_tile_rgba((unsigned char *) src, w, h, dst, dst_stride);
+      break;
+   case PIPE_FORMAT_X24S8_USCALED:
+      s8x24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
+      break;
    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
    case PIPE_FORMAT_X8Z24_UNORM:
       z24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
       break;
+   case PIPE_FORMAT_S8X24_USCALED:
+      x24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
+      break;
    case PIPE_FORMAT_Z32_FLOAT:
       z32f_get_tile_rgba((float *) src, w, h, dst, dst_stride);
       break;