Merge master and fix conflicts

16 files changed, 638 insertions, 52 deletions

diff --git a/src/gallium/auxiliary/util/Makefile b/src/gallium/auxiliary/util/Makefile
index 5035e9cc13..6a8eb73e84 100644
--- a/src/gallium/auxiliary/util/Makefile
+++ b/src/gallium/auxiliary/util/Makefile
@@ -16,6 +16,7 @@ C_SOURCES = \
 	u_hash.c \
 	u_keymap.c \
 	u_linear.c \
+	u_network.c \
 	u_math.c \
 	u_mm.c \
 	u_rect.c \
@@ -23,6 +24,7 @@ C_SOURCES = \
 	u_snprintf.c \
 	u_stream_stdc.c \
 	u_stream_wd.c \
+	u_surface.c \
 	u_tile.c \
 	u_time.c \
 	u_timed_winsys.c \
diff --git a/src/gallium/auxiliary/util/SConscript b/src/gallium/auxiliary/util/SConscript
index 8317263bb8..fb142eebca 100644
--- a/src/gallium/auxiliary/util/SConscript
+++ b/src/gallium/auxiliary/util/SConscript
@@ -17,6 +17,7 @@ util = env.ConvenienceLibrary(
 		'u_hash.c',
 		'u_hash_table.c',
 		'u_keymap.c',
+		'u_network.c',
 		'u_math.c',
 		'u_mm.c',
 		'u_rect.c',
@@ -24,6 +25,7 @@ util = env.ConvenienceLibrary(
 		'u_snprintf.c',
 		'u_stream_stdc.c',
 		'u_stream_wd.c',
+		'u_surface.c',
 		'u_tile.c',
 		'u_time.c',
 		'u_timed_winsys.c',
diff --git a/src/gallium/auxiliary/util/u_blit.c b/src/gallium/auxiliary/util/u_blit.c
index deb68c43a6..414cf91025 100644
--- a/src/gallium/auxiliary/util/u_blit.c
+++ b/src/gallium/auxiliary/util/u_blit.c
@@ -89,10 +89,6 @@ util_create_blit(struct pipe_context *pipe, struct cso_context *cso)
 
    /* disabled blending/masking */
    memset(&ctx->blend, 0, sizeof(ctx->blend));
-   ctx->blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE;
-   ctx->blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
-   ctx->blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
-   ctx->blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
    ctx->blend.colormask = PIPE_MASK_RGBA;
 
    /* no-op depth/stencil/alpha */
@@ -337,7 +333,6 @@ util_blit_pixels(struct blit_state *ctx,
    texTemp.width[0] = srcW;
    texTemp.height[0] = srcH;
    texTemp.depth[0] = 1;
-   texTemp.compressed = 0;
    pf_get_block(src->format, &texTemp.block);
 
    tex = screen->texture_create(screen, &texTemp);
diff --git a/src/gallium/auxiliary/util/u_debug.c b/src/gallium/auxiliary/util/u_debug.c
index 96a2222f9b..18597ef839 100644
--- a/src/gallium/auxiliary/util/u_debug.c
+++ b/src/gallium/auxiliary/util/u_debug.c
@@ -109,6 +109,7 @@ void _debug_vprintf(const char *format, va_list ap)
    }
    
    if(GetConsoleWindow() && !IsDebuggerPresent()) {
+      fflush(stdout);
       vfprintf(stderr, format, ap);
       fflush(stderr);
    }
@@ -145,6 +146,7 @@ void _debug_vprintf(const char *format, va_list ap)
    /* TODO */
 #else /* !PIPE_SUBSYSTEM_WINDOWS */
 #ifdef DEBUG
+   fflush(stdout);
    vfprintf(stderr, format, ap);
 #endif
 #endif
@@ -719,6 +721,7 @@ void
 debug_dump_surface_bmp(const char *filename,
                        struct pipe_surface *surface)
 {
+#ifndef PIPE_SUBSYSTEM_WINDOWS_MINIPORT
    struct pipe_transfer *transfer;
    struct pipe_texture *texture = surface->texture;
    struct pipe_screen *screen = texture->screen;
@@ -731,6 +734,7 @@ debug_dump_surface_bmp(const char *filename,
    debug_dump_transfer_bmp(filename, transfer);
 
    screen->tex_transfer_destroy(transfer);
+#endif
 }
 
 void
@@ -738,11 +742,7 @@ debug_dump_transfer_bmp(const char *filename,
                         struct pipe_transfer *transfer)
 {
 #ifndef PIPE_SUBSYSTEM_WINDOWS_MINIPORT
-   struct util_stream *stream;
-   struct bmp_file_header bmfh;
-   struct bmp_info_header bmih;
    float *rgba;
-   unsigned x, y;
 
    if (!transfer)
       goto error1;
@@ -751,19 +751,47 @@ debug_dump_transfer_bmp(const char *filename,
    if(!rgba)
       goto error1;
 
+   pipe_get_tile_rgba(transfer, 0, 0,
+                      transfer->width, transfer->height,
+                      rgba);
+
+   debug_dump_float_rgba_bmp(filename,
+                             transfer->width, transfer->height,
+                             rgba, transfer->width);
+
+   FREE(rgba);
+error1:
+   ;
+#endif
+}
+
+void
+debug_dump_float_rgba_bmp(const char *filename,
+                          unsigned width, unsigned height,
+                          float *rgba, unsigned stride)
+{
+#ifndef PIPE_SUBSYSTEM_WINDOWS_MINIPORT
+   struct util_stream *stream;
+   struct bmp_file_header bmfh;
+   struct bmp_info_header bmih;
+   unsigned x, y;
+
+   if(!rgba)
+      goto error1;
+
    bmfh.bfType = 0x4d42;
-   bmfh.bfSize = 14 + 40 + transfer->height*transfer->width*4;
+   bmfh.bfSize = 14 + 40 + height*width*4;
    bmfh.bfReserved1 = 0;
    bmfh.bfReserved2 = 0;
    bmfh.bfOffBits = 14 + 40;
 
    bmih.biSize = 40;
-   bmih.biWidth = transfer->width;
-   bmih.biHeight = transfer->height;
+   bmih.biWidth = width;
+   bmih.biHeight = height;
    bmih.biPlanes = 1;
    bmih.biBitCount = 32;
    bmih.biCompression = 0;
-   bmih.biSizeImage = transfer->height*transfer->width*4;
+   bmih.biSizeImage = height*width*4;
    bmih.biXPelsPerMeter = 0;
    bmih.biYPelsPerMeter = 0;
    bmih.biClrUsed = 0;
@@ -771,19 +799,15 @@ debug_dump_transfer_bmp(const char *filename,
 
    stream = util_stream_create(filename, bmfh.bfSize);
    if(!stream)
-      goto error2;
+      goto error1;
 
    util_stream_write(stream, &bmfh, 14);
    util_stream_write(stream, &bmih, 40);
 
-   pipe_get_tile_rgba(transfer, 0, 0,
-                      transfer->width, transfer->height,
-                      rgba);
-
-   y = transfer->height;
+   y = height;
    while(y--) {
-      float *ptr = rgba + (transfer->width * y * 4);
-      for(x = 0; x < transfer->width; ++x)
+      float *ptr = rgba + (stride * y * 4);
+      for(x = 0; x < width; ++x)
       {
          struct bmp_rgb_quad pixel;
          pixel.rgbRed   = float_to_ubyte(ptr[x*4 + 0]);
@@ -795,8 +819,6 @@ debug_dump_transfer_bmp(const char *filename,
    }
 
    util_stream_close(stream);
-error2:
-   FREE(rgba);
 error1:
    ;
 #endif
diff --git a/src/gallium/auxiliary/util/u_debug.h b/src/gallium/auxiliary/util/u_debug.h
index 8d703e47fc..d42b65ce28 100644
--- a/src/gallium/auxiliary/util/u_debug.h
+++ b/src/gallium/auxiliary/util/u_debug.h
@@ -102,6 +102,22 @@ debug_printf(const char *format, ...)
 }
 
 
+/*
+ * ... isn't portable so we need to pass arguments in parentheses.
+ *
+ * usage:
+ *    debug_printf_once(("awnser: %i\n", 42));
+ */
+#define debug_printf_once(args) \
+   do { \
+      static boolean once = TRUE; \
+      if (once) { \
+         once = FALSE; \
+         debug_printf args; \
+      } \
+   } while (0)
+
+
 #ifdef DEBUG
 #define debug_vprintf(_format, _ap) _debug_vprintf(_format, _ap)
 #else
@@ -347,10 +363,15 @@ void debug_dump_surface_bmp(const char *filename,
                             struct pipe_surface *surface);
 void debug_dump_transfer_bmp(const char *filename,
                              struct pipe_transfer *transfer);
+void debug_dump_float_rgba_bmp(const char *filename,
+                               unsigned width, unsigned height,
+                               float *rgba, unsigned stride);
 #else
 #define debug_dump_image(prefix, format, cpp, width, height, stride, data) ((void)0)
 #define debug_dump_surface(prefix, surface) ((void)0)
 #define debug_dump_surface_bmp(filename, surface) ((void)0)
+#define debug_dump_transfer_bmp(filename, transfer) ((void)0)
+#define debug_dump_rgba_float_bmp(filename, width, height, rgba, stride) ((void)0)
 #endif
 
 
diff --git a/src/gallium/auxiliary/util/u_debug_stack.c b/src/gallium/auxiliary/util/u_debug_stack.c
index e9891fde8a..528a1c394b 100644
--- a/src/gallium/auxiliary/util/u_debug_stack.c
+++ b/src/gallium/auxiliary/util/u_debug_stack.c
@@ -62,6 +62,8 @@ debug_backtrace_capture(struct debug_stack_frame *backtrace,
    
 #ifdef PIPE_ARCH_X86
    while(nr_frames) {
+      const void **next_frame_pointer;
+
       if(!frame_pointer)
          break;
       
@@ -72,7 +74,14 @@ debug_backtrace_capture(struct debug_stack_frame *backtrace,
          --nr_frames;
       }
       
-      frame_pointer = (const void **)frame_pointer[0];
+      next_frame_pointer = (const void **)frame_pointer[0];
+      
+      /* Limit the stack walk to avoid referencing undefined memory */
+      if((uintptr_t)next_frame_pointer <= (uintptr_t)frame_pointer ||
+         (uintptr_t)next_frame_pointer > (uintptr_t)frame_pointer + 64*1024)
+         break;
+      
+      frame_pointer = next_frame_pointer;
    }
 #endif
    
diff --git a/src/gallium/auxiliary/util/u_gen_mipmap.c b/src/gallium/auxiliary/util/u_gen_mipmap.c
index b32ad1cbe9..ca797486a0 100644
--- a/src/gallium/auxiliary/util/u_gen_mipmap.c
+++ b/src/gallium/auxiliary/util/u_gen_mipmap.c
@@ -1278,10 +1278,6 @@ util_create_gen_mipmap(struct pipe_context *pipe,
 
    /* disabled blending/masking */
    memset(&ctx->blend, 0, sizeof(ctx->blend));
-   ctx->blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE;
-   ctx->blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
-   ctx->blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
-   ctx->blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
    ctx->blend.colormask = PIPE_MASK_RGBA;
 
    /* no-op depth/stencil/alpha */
@@ -1320,7 +1316,6 @@ util_create_gen_mipmap(struct pipe_context *pipe,
    for (i = 0; i < 4; i++) {
       ctx->vertices[i][0][2] = 0.0f; /* z */
       ctx->vertices[i][0][3] = 1.0f; /* w */
-      ctx->vertices[i][1][2] = 0.0f; /* r */
       ctx->vertices[i][1][3] = 1.0f; /* q */
    }
 
@@ -1354,29 +1349,104 @@ get_next_slot(struct gen_mipmap_state *ctx)
 
 
 static unsigned
-set_vertex_data(struct gen_mipmap_state *ctx, float width, float height)
+set_vertex_data(struct gen_mipmap_state *ctx,
+                enum pipe_texture_target tex_target,
+                uint face, float width, float height)
 {
    unsigned offset;
 
+   /* vert[0].position */
    ctx->vertices[0][0][0] = 0.0f; /*x*/
    ctx->vertices[0][0][1] = 0.0f; /*y*/
-   ctx->vertices[0][1][0] = 0.0f; /*s*/
-   ctx->vertices[0][1][1] = 0.0f; /*t*/
 
+   /* vert[1].position */
    ctx->vertices[1][0][0] = width;
    ctx->vertices[1][0][1] = 0.0f;
-   ctx->vertices[1][1][0] = 1.0f;
-   ctx->vertices[1][1][1] = 0.0f;
 
+   /* vert[2].position */
    ctx->vertices[2][0][0] = width;
    ctx->vertices[2][0][1] = height;
-   ctx->vertices[2][1][0] = 1.0f;
-   ctx->vertices[2][1][1] = 1.0f;
 
+   /* vert[3].position */
    ctx->vertices[3][0][0] = 0.0f;
    ctx->vertices[3][0][1] = height;
-   ctx->vertices[3][1][0] = 0.0f;
-   ctx->vertices[3][1][1] = 1.0f;
+
+   /* Setup vertex texcoords.  This is a little tricky for cube maps. */
+   if (tex_target == PIPE_TEXTURE_CUBE) {
+      static const float st[4][2] = {
+         {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f}
+      };
+      float rx, ry, rz;
+      uint i;
+
+      /* loop over quad verts */
+      for (i = 0; i < 4; i++) {
+         /* Compute sc = +/-scale and tc = +/-scale.
+          * Not +/-1 to avoid cube face selection ambiguity near the edges,
+          * though that can still sometimes happen with this scale factor...
+          */
+         const float scale = 0.9999f;
+         const float sc = (2.0f * st[i][0] - 1.0f) * scale;
+         const float tc = (2.0f * st[i][1] - 1.0f) * scale;
+
+         switch (face) {
+         case PIPE_TEX_FACE_POS_X:
+            rx = 1.0f;
+            ry = -tc;
+            rz = -sc;
+            break;
+         case PIPE_TEX_FACE_NEG_X:
+            rx = -1.0f;
+            ry = -tc;
+            rz = sc;
+            break;
+         case PIPE_TEX_FACE_POS_Y:
+            rx = sc;
+            ry = 1.0f;
+            rz = tc;
+            break;
+         case PIPE_TEX_FACE_NEG_Y:
+            rx = sc;
+            ry = -1.0f;
+            rz = -tc;
+            break;
+         case PIPE_TEX_FACE_POS_Z:
+            rx = sc;
+            ry = -tc;
+            rz = 1.0f;
+            break;
+         case PIPE_TEX_FACE_NEG_Z:
+            rx = -sc;
+            ry = -tc;
+            rz = -1.0f;
+            break;
+         default:
+            assert(0);
+         }
+
+         ctx->vertices[i][1][0] = rx; /*s*/
+         ctx->vertices[i][1][1] = ry; /*t*/
+         ctx->vertices[i][1][2] = rz; /*r*/
+      }
+   }
+   else {
+      /* 1D/2D */
+      ctx->vertices[0][1][0] = 0.0f; /*s*/
+      ctx->vertices[0][1][1] = 0.0f; /*t*/
+      ctx->vertices[0][1][2] = 0.0f; /*r*/
+
+      ctx->vertices[1][1][0] = 1.0f;
+      ctx->vertices[1][1][1] = 0.0f;
+      ctx->vertices[1][1][2] = 0.0f;
+
+      ctx->vertices[2][1][0] = 1.0f;
+      ctx->vertices[2][1][1] = 1.0f;
+      ctx->vertices[2][1][2] = 0.0f;
+
+      ctx->vertices[3][1][0] = 0.0f;
+      ctx->vertices[3][1][1] = 1.0f;
+      ctx->vertices[3][1][2] = 0.0f;
+   }
 
    offset = get_next_slot( ctx );
 
@@ -1507,6 +1577,8 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
 
       /* quad coords in window coords (bypassing vs, clip and viewport) */
       offset = set_vertex_data(ctx,
+                               pt->target,
+                               face,
                                (float) pt->width[dstLevel],
                                (float) pt->height[dstLevel]);
 
diff --git a/src/gallium/auxiliary/util/u_linear.c b/src/gallium/auxiliary/util/u_linear.c
index 6be365e53b..a1dce3f5cf 100644
--- a/src/gallium/auxiliary/util/u_linear.c
+++ b/src/gallium/auxiliary/util/u_linear.c
@@ -1,3 +1,34 @@
+/**************************************************************************
+ * 
+ * Copyright 2009 VMware, Inc.
+ * 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 VMWARE 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.
+ * 
+ **************************************************************************/
+
+/**
+ * Functions for converting tiled data to linear and vice versa.
+ */
+
 
 #include "util/u_debug.h"
 #include "u_linear.h"
diff --git a/src/gallium/auxiliary/util/u_linear.h b/src/gallium/auxiliary/util/u_linear.h
index 1589f029bc..b74308ffa3 100644
--- a/src/gallium/auxiliary/util/u_linear.h
+++ b/src/gallium/auxiliary/util/u_linear.h
@@ -1,3 +1,34 @@
+/**************************************************************************
+ * 
+ * Copyright 2009 VMware, Inc.
+ * 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 VMWARE 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.
+ * 
+ **************************************************************************/
+
+/**
+ * Functions for converting tiled data to linear and vice versa.
+ */
+
 
 #ifndef U_LINEAR_H
 #define U_LINEAR_H
diff --git a/src/gallium/auxiliary/util/u_network.c b/src/gallium/auxiliary/util/u_network.c
new file mode 100644
index 0000000000..07d804ecdb
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_network.c
@@ -0,0 +1,188 @@
+
+#include "pipe/p_compiler.h"
+#include "util/u_network.h"
+#include "util/u_debug.h"
+
+#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+#  include <winsock2.h>
+#  include <windows.h>
+#elif defined(PIPE_OS_LINUX)
+#  include <sys/socket.h>
+#  include <netinet/in.h>
+#  include <unistd.h>
+#  include <fcntl.h>
+#  include <netdb.h>
+#else
+#  warning "No socket implementation"
+#endif
+
+boolean
+u_socket_init()
+{
+#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+   WORD wVersionRequested;
+   WSADATA wsaData;
+   int err;
+
+   /* Use the MAKEWORD(lowbyte, highbyte) macro declared in Windef.h */
+   wVersionRequested = MAKEWORD(1, 1);
+
+   err = WSAStartup(wVersionRequested, &wsaData);
+   if (err != 0) {
+      debug_printf("WSAStartup failed with error: %d\n", err);
+      return FALSE;
+   }
+   return TRUE;
+#elif defined(PIPE_HAVE_SOCKETS)
+   return TRUE;
+#else
+   return FALSE;
+#endif
+}
+
+void
+u_socket_stop()
+{
+#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+   WSACleanup();
+#endif
+}
+
+void
+u_socket_close(int s)
+{
+   if (s < 0)
+      return;
+
+#if defined(PIPE_OS_LINUX)
+   shutdown(s, SHUT_RDWR);
+   close(s);
+#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+   shutdown(s, SD_BOTH);
+   closesocket(s);
+#else
+   assert(0);
+#endif
+}
+
+int u_socket_accept(int s)
+{
+#if defined(PIPE_HAVE_SOCKETS)
+   return accept(s, NULL, NULL);
+#else
+   return -1;
+#endif
+}
+
+int
+u_socket_send(int s, void *data, size_t size)
+{
+#if defined(PIPE_HAVE_SOCKETS)
+   return send(s, data, size, 0);
+#else
+   return -1;
+#endif
+}
+
+int
+u_socket_peek(int s, void *data, size_t size)
+{
+#if defined(PIPE_HAVE_SOCKETS)
+   return recv(s, data, size, MSG_PEEK);
+#else
+   return -1;
+#endif
+}
+
+int
+u_socket_recv(int s, void *data, size_t size)
+{
+#if defined(PIPE_HAVE_SOCKETS)
+   return recv(s, data, size, 0);
+#else
+   return -1;
+#endif
+}
+
+int
+u_socket_connect(const char *hostname, uint16_t port)
+{
+#if defined(PIPE_HAVE_SOCKETS)
+   int s;
+   struct sockaddr_in sa;
+   struct hostent *host = NULL;
+
+   memset(&sa, 0, sizeof(struct sockaddr_in));
+   host = gethostbyname(hostname);
+   if (!host)
+      return -1;
+
+   memcpy((char *)&sa.sin_addr,host->h_addr,host->h_length);
+   sa.sin_family= host->h_addrtype;
+   sa.sin_port = htons(port);
+
+   s = socket(host->h_addrtype, SOCK_STREAM, IPPROTO_TCP);
+   if (s < 0)
+      return -1;
+
+   if (connect(s, (struct sockaddr *)&sa, sizeof(sa))) {
+      u_socket_close(s);
+      return -1;
+   }
+
+   return s;
+#else
+   assert(0);
+   return -1;
+#endif
+}
+
+int
+u_socket_listen_on_port(uint16_t portnum)
+{
+#if defined(PIPE_HAVE_SOCKETS)
+   int s;
+   struct sockaddr_in sa;
+   memset(&sa, 0, sizeof(struct sockaddr_in));
+
+   sa.sin_family = AF_INET;
+   sa.sin_port = htons(portnum);
+
+   s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+   if (s < 0)
+      return -1;
+
+   if (bind(s, (struct sockaddr *)&sa, sizeof(struct sockaddr_in)) == -1) {
+      u_socket_close(s);
+      return -1;
+   }
+
+   listen(s, 0);
+
+   return s;
+#else
+   assert(0);
+   return -1;
+#endif
+}
+
+void
+u_socket_block(int s, boolean block)
+{
+#if defined(PIPE_OS_LINUX)
+   int old = fcntl(s, F_GETFL, 0);
+   if (old == -1)
+      return;
+
+   /* TODO obey block */
+   if (block)
+      fcntl(s, F_SETFL, old & ~O_NONBLOCK);
+   else
+      fcntl(s, F_SETFL, old | O_NONBLOCK);
+#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+   u_long iMode = block ? 0 : 1;
+   ioctlsocket(s, FIONBIO, &iMode);
+#else
+   assert(0);
+#endif
+}
diff --git a/src/gallium/auxiliary/util/u_network.h b/src/gallium/auxiliary/util/u_network.h
new file mode 100644
index 0000000000..14d3884427
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_network.h
@@ -0,0 +1,24 @@
+
+#ifndef _U_NETWORK_H_
+#define _U_NETWORK_H_
+
+#include "pipe/p_compiler.h"
+
+#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+#  define PIPE_HAVE_SOCKETS
+#elif defined(PIPE_OS_LINUX)
+#  define PIPE_HAVE_SOCKETS
+#endif
+
+boolean u_socket_init(void);
+void u_socket_stop(void);
+void u_socket_close(int s);
+int u_socket_listen_on_port(uint16_t portnum);
+int u_socket_accept(int s);
+int u_socket_connect(const char *host, uint16_t port);
+int u_socket_send(int s, void *data, size_t size);
+int u_socket_peek(int s, void *data, size_t size);
+int u_socket_recv(int s, void *data, size_t size);
+void u_socket_block(int s, boolean block);
+
+#endif
diff --git a/src/gallium/auxiliary/util/u_surface.c b/src/gallium/auxiliary/util/u_surface.c
new file mode 100644
index 0000000000..85e443204e
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_surface.c
@@ -0,0 +1,113 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.  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 VMWARE 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.
+ *
+ **************************************************************************/
+
+/**
+ * @file
+ * Surface utility functions.
+ *  
+ * @author Brian Paul
+ */
+
+
+#include "pipe/p_screen.h"
+#include "pipe/p_state.h"
+#include "pipe/p_defines.h"
+
+#include "util/u_surface.h"
+
+
+/**
+ * Helper to quickly create an RGBA rendering surface of a certain size.
+ * \param textureOut  returns the new texture
+ * \param surfaceOut  returns the new surface
+ * \return TRUE for success, FALSE if failure
+ */
+boolean
+util_create_rgba_surface(struct pipe_screen *screen,
+                         uint width, uint height,
+                         struct pipe_texture **textureOut,
+                         struct pipe_surface **surfaceOut)
+{
+   static const enum pipe_format rgbaFormats[] = {
+      PIPE_FORMAT_A8R8G8B8_UNORM,
+      PIPE_FORMAT_B8G8R8A8_UNORM,
+      PIPE_FORMAT_R8G8B8A8_UNORM,
+      PIPE_FORMAT_NONE
+   };
+   const uint target = PIPE_TEXTURE_2D;
+   const uint usage = PIPE_TEXTURE_USAGE_RENDER_TARGET;
+   enum pipe_format format = PIPE_FORMAT_NONE;
+   struct pipe_texture templ;
+   uint i;
+
+   /* Choose surface format */
+   for (i = 0; rgbaFormats[i]; i++) {
+      if (screen->is_format_supported(screen, rgbaFormats[i],
+                                      target, usage, 0)) {
+         format = rgbaFormats[i];
+         break;
+      }
+   }
+   if (format == PIPE_FORMAT_NONE)
+      return FALSE;  /* unable to get an rgba format!?! */
+
+   /* create texture */
+   memset(&templ, 0, sizeof(templ));
+   templ.target = target;
+   templ.format = format;
+   templ.last_level = 0;
+   templ.width[0] = width;
+   templ.height[0] = height;
+   templ.depth[0] = 1;
+   pf_get_block(format, &templ.block);
+   templ.tex_usage = usage;
+
+   *textureOut = screen->texture_create(screen, &templ);
+   if (!*textureOut)
+      return FALSE;
+
+   /* create surface / view into texture */
+   *surfaceOut = screen->get_tex_surface(screen, *textureOut, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE);
+   if (!*surfaceOut) {
+      pipe_texture_reference(textureOut, NULL);
+      return FALSE;
+   }
+
+   return TRUE;
+}
+
+
+/**
+ * Release the surface and texture from util_create_rgba_surface().
+ */
+void
+util_destroy_rgba_surface(struct pipe_texture *texture,
+                          struct pipe_surface *surface)
+{
+   pipe_surface_reference(&surface, NULL);
+   pipe_texture_reference(&texture, NULL);
+}
+
diff --git a/src/gallium/auxiliary/util/u_surface.h b/src/gallium/auxiliary/util/u_surface.h
new file mode 100644
index 0000000000..a5b73cfc20
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_surface.h
@@ -0,0 +1,52 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.  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 VMWARE 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.
+ *
+ **************************************************************************/
+
+
+#ifndef U_SURFACE_H
+#define U_SURFACE_H
+
+
+#include "pipe/p_compiler.h"
+
+
+struct pipe_screen;
+struct pipe_texture;
+struct pipe_surface;
+
+
+extern boolean
+util_create_rgba_surface(struct pipe_screen *screen,
+                         uint width, uint height,
+                         struct pipe_texture **textureOut,
+                         struct pipe_surface **surfaceOut);
+
+
+extern void
+util_destroy_rgba_surface(struct pipe_texture *texture,
+                          struct pipe_surface *surface);
+
+
+#endif /* U_SURFACE_H */
diff --git a/src/gallium/auxiliary/util/u_tile.c b/src/gallium/auxiliary/util/u_tile.c
index f0a5a339eb..9747a55cbf 100644
--- a/src/gallium/auxiliary/util/u_tile.c
+++ b/src/gallium/auxiliary/util/u_tile.c
@@ -1126,7 +1126,22 @@ pipe_get_tile_z(struct pipe_transfer *pt,
          for (i = 0; i < h; i++) {
             for (j = 0; j < w; j++) {
                /* convert 24-bit Z to 32-bit Z */
-               pDest[j] = (ptrc[j] << 8) | (ptrc[j] & 0xff);
+               pDest[j] = (ptrc[j] << 8) | ((ptrc[j] >> 16) & 0xff);
+            }
+            pDest += dstStride;
+            ptrc += pt->stride/4;
+         }
+      }
+      break;
+   case PIPE_FORMAT_Z24S8_UNORM:
+   case PIPE_FORMAT_Z24X8_UNORM:
+      {
+         const uint *ptrc
+            = (const uint *)(map + y * pt->stride + x*4);
+         for (i = 0; i < h; i++) {
+            for (j = 0; j < w; j++) {
+               /* convert 24-bit Z to 32-bit Z */
+               pDest[j] = (ptrc[j] & 0xffffff00) | ((ptrc[j] >> 24) & 0xff);
             }
             pDest += dstStride;
             ptrc += pt->stride/4;
diff --git a/src/gallium/auxiliary/util/u_time.c b/src/gallium/auxiliary/util/u_time.c
index 8afe4fccf7..5268cbf79c 100644
--- a/src/gallium/auxiliary/util/u_time.c
+++ b/src/gallium/auxiliary/util/u_time.c
@@ -217,4 +217,9 @@ void util_time_sleep(unsigned usecs)
    } while(start <= curr && curr < end || 
 	   end < start && (curr < end || start <= curr));
 }
+#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
+void util_time_sleep(unsigned usecs)
+{
+   Sleep((usecs + 999)/ 1000);
+}
 #endif
diff --git a/src/gallium/auxiliary/util/u_upload_mgr.c b/src/gallium/auxiliary/util/u_upload_mgr.c
index d9c0d7afa8..2eb98068c8 100644
--- a/src/gallium/auxiliary/util/u_upload_mgr.c
+++ b/src/gallium/auxiliary/util/u_upload_mgr.c
@@ -70,7 +70,7 @@ struct u_upload_mgr *u_upload_create( struct pipe_screen *screen,
 }
 
 
-static INLINE void
+static INLINE enum pipe_error
 my_buffer_write(struct pipe_screen *screen,
                 struct pipe_buffer *buf,
                 unsigned offset, unsigned size, unsigned dirty_size,
@@ -84,12 +84,14 @@ my_buffer_write(struct pipe_screen *screen,
    assert(size);
 
    map = pipe_buffer_map_range(screen, buf, offset, size, PIPE_BUFFER_USAGE_CPU_WRITE);
-   assert(map);
-   if(map) {
-      memcpy(map + offset, data, size);
-      pipe_buffer_flush_mapped_range(screen, buf, offset, dirty_size);
-      pipe_buffer_unmap(screen, buf);
-   }
+   if (map == NULL) 
+      return PIPE_ERROR_OUT_OF_MEMORY;
+
+   memcpy(map + offset, data, size);
+   pipe_buffer_flush_mapped_range(screen, buf, offset, dirty_size);
+   pipe_buffer_unmap(screen, buf);
+
+   return PIPE_OK;
 }
 
 /* Release old buffer.
@@ -162,12 +164,14 @@ enum pipe_error u_upload_data( struct u_upload_mgr *upload,
 
    /* Copy the data, using map_range if available:
     */
-   my_buffer_write( upload->screen, 
-                    upload->buffer,
-                    upload->offset,
-                    size, 
-                    alloc_size,
-                    data );
+   ret = my_buffer_write( upload->screen, 
+                          upload->buffer,
+                          upload->offset,
+                          size, 
+                          alloc_size,
+                          data );
+   if (ret)
+      return ret;
 
    /* Emit the return values:
     */