util: Revert unsolicited, untested, unreviewed, and broken changes to format support.

Not all is bad, but I'm afraid I'll have to throw the baby with the water
given they are all tied to together.

8 files changed, 130 insertions, 205 deletions

diff --git a/src/gallium/auxiliary/util/u_format.c b/src/gallium/auxiliary/util/u_format.c
index 112490f3b41..7f16cf7d018 100644
--- a/src/gallium/auxiliary/util/u_format.c
+++ b/src/gallium/auxiliary/util/u_format.c
@@ -33,8 +33,6 @@
  */
 
 #include "u_format.h"
-#include "u_format_s3tc.h"
-#include "u_half.h"
 
 
 void
@@ -117,3 +115,4 @@ util_format_write_4ub(enum pipe_format format, const uint8_t *src, unsigned src_
 
    format_desc->pack_8unorm(dst_row, dst_stride, src_row, src_stride, w, h);
 }
+
diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h
index 2ac3abab23a..93818a31611 100644
--- a/src/gallium/auxiliary/util/u_format.h
+++ b/src/gallium/auxiliary/util/u_format.h
@@ -32,7 +32,6 @@
 
 #include "pipe/p_format.h"
 #include "util/u_debug.h"
-#include "util/u_format_s3tc.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -169,13 +168,6 @@ struct util_format_description
    unsigned is_mixed:1;
 
    /**
-    * Whether the pack/unpack functions actually work.
-    *
-    * Call util_format_is_supported instead of using this directly.
-    */
-   unsigned is_supported:1;
-
-   /**
     * Input channel description.
     *
     * Only valid for UTIL_FORMAT_LAYOUT_PLAIN formats.
@@ -514,20 +506,6 @@ util_format_get_nr_components(enum pipe_format format)
  * Format access functions.
  */
 
-static INLINE boolean
-util_format_is_supported(enum pipe_format format)
-{
-   const struct util_format_description *desc = util_format_description(format);
-
-   if(!desc)
-      return FALSE;
-
-   if(desc->layout == UTIL_FORMAT_LAYOUT_S3TC)
-      util_format_s3tc_init();
-
-   return desc->is_supported;
-}
-
 void
 util_format_read_4f(enum pipe_format format,
                     float *dst, unsigned dst_stride, 
diff --git a/src/gallium/auxiliary/util/u_format_s3tc.c b/src/gallium/auxiliary/util/u_format_s3tc.c
index d48551f23ba..268f0e8dfab 100644
--- a/src/gallium/auxiliary/util/u_format_s3tc.c
+++ b/src/gallium/auxiliary/util/u_format_s3tc.c
@@ -34,129 +34,59 @@
 #define DXTN_LIBNAME "libtxc_dxtn.so"
 #endif
 
-static void
-util_format_dxt1_rgb_fetch_stub( int src_stride,
-                             const uint8_t *src,
-                             int col, int row,
-                             uint8_t *dst )
-{
-   util_format_s3tc_init();
-   util_format_dxt1_rgb_fetch(src_stride, src, col, row, dst);
-}
-
-static void
-util_format_dxt1_rgba_fetch_stub( int src_stride,
-                             const uint8_t *src,
-                             int col, int row,
-                             uint8_t *dst )
-{
-   util_format_s3tc_init();
-   util_format_dxt1_rgba_fetch(src_stride, src, col, row, dst);
-}
-
-static void
-util_format_dxt3_rgba_fetch_stub( int src_stride,
-                             const uint8_t *src,
-                             int col, int row,
-                             uint8_t *dst )
-{
-   util_format_s3tc_init();
-   util_format_dxt3_rgba_fetch(src_stride, src, col, row, dst);
-}
 
-static void
-util_format_dxt5_rgba_fetch_stub( int src_stride,
-                             const uint8_t *src,
-                             int col, int row,
-                             uint8_t *dst )
-{
-   util_format_s3tc_init();
-   util_format_dxt5_rgba_fetch(src_stride, src, col, row, dst);
-}
-
-static
-void util_format_dxtn_pack_stub( int src_comps,
-                            int width, int height,
-                            const uint8_t *src,
-                            enum util_format_dxtn dst_format,
-                            uint8_t *dst,
-                            int dst_stride)
-{
-   util_format_s3tc_init();
-   util_format_dxtn_pack_stub(src_comps, width, height, src, dst_format, dst, dst_stride);
-}
-
-boolean util_format_s3tc_inited = FALSE;
+boolean util_format_s3tc_enabled = FALSE;
 
-util_format_dxtn_fetch_t util_format_dxt1_rgb_fetch = util_format_dxt1_rgb_fetch_stub;
-util_format_dxtn_fetch_t util_format_dxt1_rgba_fetch = util_format_dxt1_rgba_fetch_stub;
-util_format_dxtn_fetch_t util_format_dxt3_rgba_fetch = util_format_dxt3_rgba_fetch_stub;
-util_format_dxtn_fetch_t util_format_dxt5_rgba_fetch = util_format_dxt5_rgba_fetch_stub;
+util_format_dxtn_fetch_t util_format_dxt1_rgb_fetch = NULL;
+util_format_dxtn_fetch_t util_format_dxt1_rgba_fetch = NULL;
+util_format_dxtn_fetch_t util_format_dxt3_rgba_fetch = NULL;
+util_format_dxtn_fetch_t util_format_dxt5_rgba_fetch = NULL;
 
-util_format_dxtn_pack_t util_format_dxtn_pack = util_format_dxtn_pack_stub;
+util_format_dxtn_pack_t util_format_dxtn_pack = NULL;
 
-static void
-nop(void)
-{}
 
-#define is_nop(f) ((void*)(f) == (void*)nop)
-
-static util_dl_proc
-get_proc_address_or_nop(struct util_dl_library *library,
-                         const char *procname)
+void
+util_format_s3tc_init(void)
 {
-   if(library) {
-      util_dl_proc proc = util_dl_get_proc_address(library, procname);
-      if(proc)
-         return proc;
-   }
-   return (util_dl_proc)nop;
-}
-
-void
-util_format_s3tc_do_init(void)
-{
-   struct util_dl_library *library;
-
-   library = util_dl_open(DXTN_LIBNAME);
-   util_format_dxt1_rgb_fetch = (util_format_dxtn_fetch_t)
-      get_proc_address_or_nop(library, "fetch_2d_texel_rgb_dxt1");
-   util_format_dxt1_rgba_fetch = (util_format_dxtn_fetch_t)
-      get_proc_address_or_nop(library, "fetch_2d_texel_rgba_dxt1");
-   util_format_dxt3_rgba_fetch = (util_format_dxtn_fetch_t)
-      get_proc_address_or_nop(library, "fetch_2d_texel_rgba_dxt3");
-   util_format_dxt5_rgba_fetch = (util_format_dxtn_fetch_t)
-      get_proc_address_or_nop(library, "fetch_2d_texel_rgba_dxt5");
-   util_format_dxtn_pack = (util_format_dxtn_pack_t)
-      get_proc_address_or_nop(library, "tx_compress_dxtn");
-
-   if (!library)
-      debug_printf("couldn't open " DXTN_LIBNAME ", software DXTn "
-         "compression/decompression unavailable\n");
-   else {
-      if (!is_nop(util_format_dxt1_rgb_fetch) &&
-         !is_nop(util_format_dxt1_rgba_fetch) &&
-         !is_nop(util_format_dxt3_rgba_fetch) &&
-         !is_nop(util_format_dxt5_rgba_fetch) &&
-         !is_nop(util_format_dxtn_pack)) {
-         debug_printf("software DXTn compression/decompression available\n");
-      } else
-         debug_printf("couldn't reference all symbols in "
-                 DXTN_LIBNAME ", software DXTn compression/decompression "
-                 "unavailable or partially available\n");
-   }
+   static struct util_dl_library *
+   library = NULL;
 
-#define DO(n, a, A) \
-  ((struct util_format_description *)util_format_description(PIPE_FORMAT_DXT##n##_SRGB##A))->is_supported = \
-         ((struct util_format_description *)util_format_description(PIPE_FORMAT_DXT##n##_RGB##A))->is_supported = \
-               !is_nop(util_format_dxt##n##_rgb##a##_fetch);
+   if (util_format_s3tc_enabled)
+      return;
 
-  DO(1,,);
-  DO(1,a,A);
-  DO(3,a,A);
-  DO(5,a,A);
-
-#undef DO
+   if (!library) {
+      library = util_dl_open(DXTN_LIBNAME);
+      if (!library) {
+	 debug_printf("couldn't open " DXTN_LIBNAME ", software DXTn "
+	    "compression/decompression unavailable");
+      }
+      else {
+         util_format_dxt1_rgb_fetch = (util_format_dxtn_fetch_t)
+            util_dl_get_proc_address(library, "fetch_2d_texel_rgb_dxt1");
+         util_format_dxt1_rgba_fetch = (util_format_dxtn_fetch_t)
+            util_dl_get_proc_address(library, "fetch_2d_texel_rgba_dxt1");
+         util_format_dxt3_rgba_fetch = (util_format_dxtn_fetch_t)
+            util_dl_get_proc_address(library, "fetch_2d_texel_rgba_dxt3");
+         util_format_dxt5_rgba_fetch = (util_format_dxtn_fetch_t)
+            util_dl_get_proc_address(library, "fetch_2d_texel_rgba_dxt5");
+         util_format_dxtn_pack = (util_format_dxtn_pack_t)
+            util_dl_get_proc_address(library, "tx_compress_dxtn");
+
+         if (util_format_dxt1_rgb_fetch ||
+             util_format_dxt1_rgba_fetch ||
+             util_format_dxt3_rgba_fetch ||
+             util_format_dxt5_rgba_fetch ||
+             util_format_dxtn_pack) {
+            util_format_s3tc_enabled = TRUE;
+            debug_printf("software DXTn compression/decompression available");
+
+         } else {
+	    debug_printf("couldn't reference all symbols in "
+	       DXTN_LIBNAME ", software DXTn compression/decompression "
+	       "unavailable");
+         }
+      }
+   }
 }
 
 
@@ -167,69 +97,85 @@ util_format_s3tc_do_init(void)
 void
 util_format_dxt1_rgb_fetch_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
 {
-   util_format_dxt1_rgb_fetch(0, src, i, j, dst);
+   if (util_format_dxt1_rgb_fetch) {
+      util_format_dxt1_rgb_fetch(0, src, i, j, dst);
+   }
 }
 
 void
 util_format_dxt1_rgba_fetch_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
 {
-   util_format_dxt1_rgba_fetch(0, src, i, j, dst);
+   if (util_format_dxt1_rgba_fetch) {
+      util_format_dxt1_rgba_fetch(0, src, i, j, dst);
+   }
 }
 
 void
 util_format_dxt3_rgba_fetch_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
 {
-   util_format_dxt3_rgba_fetch(0, src, i, j, dst);
+   if (util_format_dxt3_rgba_fetch) {
+      util_format_dxt3_rgba_fetch(0, src, i, j, dst);
+   }
 }
 
 void
 util_format_dxt5_rgba_fetch_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
 {
-   util_format_dxt5_rgba_fetch(0, src, i, j, dst);
+   if (util_format_dxt5_rgba_fetch) {
+      util_format_dxt5_rgba_fetch(0, src, i, j, dst);
+   }
 }
 
 void
 util_format_dxt1_rgb_fetch_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
 {
-   uint8_t tmp[4];
-   util_format_dxt1_rgb_fetch(0, src, i, j, tmp);
-   dst[0] = ubyte_to_float(tmp[0]);
-   dst[1] = ubyte_to_float(tmp[1]);
-   dst[2] = ubyte_to_float(tmp[2]);
-   dst[3] = 1.0;
+   if (util_format_dxt1_rgb_fetch) {
+      uint8_t tmp[4];
+      util_format_dxt1_rgb_fetch(0, src, i, j, tmp);
+      dst[0] = ubyte_to_float(tmp[0]);
+      dst[1] = ubyte_to_float(tmp[1]);
+      dst[2] = ubyte_to_float(tmp[2]);
+      dst[3] = 1.0;
+   }
 }
 
 void
 util_format_dxt1_rgba_fetch_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
 {
-   uint8_t tmp[4];
-   util_format_dxt1_rgba_fetch(0, src, i, j, tmp);
-   dst[0] = ubyte_to_float(tmp[0]);
-   dst[1] = ubyte_to_float(tmp[1]);
-   dst[2] = ubyte_to_float(tmp[2]);
-   dst[3] = ubyte_to_float(tmp[3]);
+   if (util_format_dxt1_rgba_fetch) {
+      uint8_t tmp[4];
+      util_format_dxt1_rgba_fetch(0, src, i, j, tmp);
+      dst[0] = ubyte_to_float(tmp[0]);
+      dst[1] = ubyte_to_float(tmp[1]);
+      dst[2] = ubyte_to_float(tmp[2]);
+      dst[3] = ubyte_to_float(tmp[3]);
+   }
 }
 
 void
 util_format_dxt3_rgba_fetch_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
 {
-   uint8_t tmp[4];
-   util_format_dxt3_rgba_fetch(0, src, i, j, tmp);
-   dst[0] = ubyte_to_float(tmp[0]);
-   dst[1] = ubyte_to_float(tmp[1]);
-   dst[2] = ubyte_to_float(tmp[2]);
-   dst[3] = ubyte_to_float(tmp[3]);
+   if (util_format_dxt3_rgba_fetch) {
+      uint8_t tmp[4];
+      util_format_dxt3_rgba_fetch(0, src, i, j, tmp);
+      dst[0] = ubyte_to_float(tmp[0]);
+      dst[1] = ubyte_to_float(tmp[1]);
+      dst[2] = ubyte_to_float(tmp[2]);
+      dst[3] = ubyte_to_float(tmp[3]);
+   }
 }
 
 void
 util_format_dxt5_rgba_fetch_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
 {
-   uint8_t tmp[4];
-   util_format_dxt5_rgba_fetch(0, src, i, j, tmp);
-   dst[0] = ubyte_to_float(tmp[0]);
-   dst[1] = ubyte_to_float(tmp[1]);
-   dst[2] = ubyte_to_float(tmp[2]);
-   dst[3] = ubyte_to_float(tmp[3]);
+   if (util_format_dxt5_rgba_fetch) {
+      uint8_t tmp[4];
+      util_format_dxt5_rgba_fetch(0, src, i, j, tmp);
+      dst[0] = ubyte_to_float(tmp[0]);
+      dst[1] = ubyte_to_float(tmp[1]);
+      dst[2] = ubyte_to_float(tmp[2]);
+      dst[3] = ubyte_to_float(tmp[3]);
+   }
 }
 
 
@@ -240,7 +186,7 @@ util_format_dxt5_rgba_fetch_float(float *dst, const uint8_t *src, unsigned i, un
 void
 util_format_dxt1_rgb_unpack_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxt1_rgb_fetch)) {
+   if (util_format_dxt1_rgb_fetch) {
       unsigned x, y, i, j;
       for(y = 0; y < height; y += 4) {
          const uint8_t *src = src_row;
@@ -261,7 +207,7 @@ util_format_dxt1_rgb_unpack_8unorm(uint8_t *dst_row, unsigned dst_stride, const
 void
 util_format_dxt1_rgba_unpack_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxt1_rgba_fetch)) {
+   if (util_format_dxt1_rgba_fetch) {
       unsigned x, y, i, j;
       for(y = 0; y < height; y += 4) {
          const uint8_t *src = src_row;
@@ -282,7 +228,7 @@ util_format_dxt1_rgba_unpack_8unorm(uint8_t *dst_row, unsigned dst_stride, const
 void
 util_format_dxt3_rgba_unpack_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxt3_rgba_fetch)) {
+   if (util_format_dxt3_rgba_fetch) {
       unsigned x, y, i, j;
       for(y = 0; y < height; y += 4) {
          const uint8_t *src = src_row;
@@ -303,7 +249,7 @@ util_format_dxt3_rgba_unpack_8unorm(uint8_t *dst_row, unsigned dst_stride, const
 void
 util_format_dxt5_rgba_unpack_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (is_nop(util_format_dxt5_rgba_fetch)) {
+   if (util_format_dxt5_rgba_fetch) {
       unsigned x, y, i, j;
       for(y = 0; y < height; y += 4) {
          const uint8_t *src = src_row;
@@ -324,7 +270,7 @@ util_format_dxt5_rgba_unpack_8unorm(uint8_t *dst_row, unsigned dst_stride, const
 void
 util_format_dxt1_rgb_unpack_float(float *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (is_nop(util_format_dxt1_rgb_fetch)) {
+   if (util_format_dxt1_rgb_fetch) {
       unsigned x, y, i, j;
       for(y = 0; y < height; y += 4) {
          const uint8_t *src = src_row;
@@ -350,7 +296,7 @@ util_format_dxt1_rgb_unpack_float(float *dst_row, unsigned dst_stride, const uin
 void
 util_format_dxt1_rgba_unpack_float(float *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxt1_rgba_fetch)) {
+   if (util_format_dxt1_rgba_fetch) {
       unsigned x, y, i, j;
       for(y = 0; y < height; y += 4) {
          const uint8_t *src = src_row;
@@ -376,7 +322,7 @@ util_format_dxt1_rgba_unpack_float(float *dst_row, unsigned dst_stride, const ui
 void
 util_format_dxt3_rgba_unpack_float(float *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxt3_rgba_fetch)) {
+   if (util_format_dxt3_rgba_fetch) {
       unsigned x, y, i, j;
       for(y = 0; y < height; y += 4) {
          const uint8_t *src = src_row;
@@ -402,7 +348,7 @@ util_format_dxt3_rgba_unpack_float(float *dst_row, unsigned dst_stride, const ui
 void
 util_format_dxt5_rgba_unpack_float(float *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxt5_rgba_fetch)) {
+   if (util_format_dxt5_rgba_fetch) {
       unsigned x, y, i, j;
       for(y = 0; y < height; y += 4) {
          const uint8_t *src = src_row;
@@ -433,7 +379,7 @@ util_format_dxt5_rgba_unpack_float(float *dst_row, unsigned dst_stride, const ui
 void
 util_format_dxt1_rgb_pack_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxtn_pack)) {
+   if (util_format_dxtn_pack) {
       unsigned x, y, i, j, k;
       for(y = 0; y < height; y += 4) {
          const uint8_t *src = src_row;
@@ -460,7 +406,7 @@ util_format_dxt1_rgb_pack_8unorm(uint8_t *dst_row, unsigned dst_stride, const ui
 void
 util_format_dxt1_rgba_pack_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxtn_pack)) {
+   if (util_format_dxtn_pack) {
       unsigned x, y, i, j, k;
       for(y = 0; y < height; y += 4) {
          const uint8_t *src = src_row;
@@ -487,7 +433,7 @@ util_format_dxt1_rgba_pack_8unorm(uint8_t *dst_row, unsigned dst_stride, const u
 void
 util_format_dxt3_rgba_pack_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxtn_pack)) {
+   if (util_format_dxtn_pack) {
       unsigned x, y, i, j, k;
       for(y = 0; y < height; y += 4) {
          const uint8_t *src = src_row;
@@ -514,7 +460,7 @@ util_format_dxt3_rgba_pack_8unorm(uint8_t *dst_row, unsigned dst_stride, const u
 void
 util_format_dxt5_rgba_pack_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxtn_pack)) {
+   if (util_format_dxtn_pack) {
       unsigned x, y, i, j, k;
       for(y = 0; y < height; y += 4) {
          const uint8_t *src = src_row;
@@ -541,7 +487,7 @@ util_format_dxt5_rgba_pack_8unorm(uint8_t *dst_row, unsigned dst_stride, const u
 void
 util_format_dxt1_rgb_pack_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxtn_pack)) {
+   if (util_format_dxtn_pack) {
       unsigned x, y, i, j, k;
       for(y = 0; y < height; y += 4) {
          const float *src = src_row;
@@ -568,7 +514,7 @@ util_format_dxt1_rgb_pack_float(uint8_t *dst_row, unsigned dst_stride, const flo
 void
 util_format_dxt1_rgba_pack_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxtn_pack)) {
+   if (util_format_dxtn_pack) {
       unsigned x, y, i, j, k;
       for(y = 0; y < height; y += 4) {
          const float *src = src_row;
@@ -595,7 +541,7 @@ util_format_dxt1_rgba_pack_float(uint8_t *dst_row, unsigned dst_stride, const fl
 void
 util_format_dxt3_rgba_pack_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxtn_pack)) {
+   if (util_format_dxtn_pack) {
       unsigned x, y, i, j, k;
       for(y = 0; y < height; y += 4) {
          const float *src = src_row;
@@ -622,7 +568,7 @@ util_format_dxt3_rgba_pack_float(uint8_t *dst_row, unsigned dst_stride, const fl
 void
 util_format_dxt5_rgba_pack_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height)
 {
-   if (!is_nop(util_format_dxtn_pack)) {
+   if (util_format_dxtn_pack) {
       unsigned x, y, i, j, k;
       for(y = 0; y < height; y += 4) {
          const float *src = src_row;
diff --git a/src/gallium/auxiliary/util/u_format_s3tc.h b/src/gallium/auxiliary/util/u_format_s3tc.h
index da14b9b93a6..5c3a9dd22c7 100644
--- a/src/gallium/auxiliary/util/u_format_s3tc.h
+++ b/src/gallium/auxiliary/util/u_format_s3tc.h
@@ -31,7 +31,6 @@
 
 
 #include "pipe/p_compiler.h"
-#include "util/u_inline_init.h"
 
 
 enum util_format_dxtn {
@@ -66,7 +65,8 @@ extern util_format_dxtn_fetch_t util_format_dxt5_rgba_fetch;
 extern util_format_dxtn_pack_t util_format_dxtn_pack;
 
 
-UTIL_INLINE_INIT(util_format_s3tc)
+void
+util_format_s3tc_init(void);
 
 
 void
diff --git a/src/gallium/auxiliary/util/u_format_table.py b/src/gallium/auxiliary/util/u_format_table.py
index 2c0c9bffeed..94a4331b15f 100755
--- a/src/gallium/auxiliary/util/u_format_table.py
+++ b/src/gallium/auxiliary/util/u_format_table.py
@@ -92,7 +92,7 @@ def write_format_table(formats):
     u_format_pack.generate(formats)
     
     for format in formats:
-        print 'struct util_format_description'
+        print 'const struct util_format_description'
         print 'util_format_%s_description = {' % (format.short_name(),)
         print "   %s," % (format.name,)
         print "   \"%s\"," % (format.name,)
@@ -103,7 +103,6 @@ def write_format_table(formats):
         print "   %s,\t/* is_array */" % (bool_map(format.is_array()),)
         print "   %s,\t/* is_bitmask */" % (bool_map(format.is_bitmask()),)
         print "   %s,\t/* is_mixed */" % (bool_map(format.is_mixed()),)
-        print "   %s,\t/* is_supported */" % ("TRUE" if u_format_pack.is_format_supported(format) else "FALSE",)
         print "   {"
         for i in range(4):
             channel = format.channels[i]
diff --git a/src/gallium/auxiliary/util/u_inline_init.h b/src/gallium/auxiliary/util/u_inline_init.h
deleted file mode 100644
index 2a1e775ed81..00000000000
--- a/src/gallium/auxiliary/util/u_inline_init.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef U_INLINE_INIT_H_
-#define U_INLINE_INIT_H_
-
-#define UTIL_INLINE_INIT(m) \
-   extern boolean m##_inited; \
-   extern void m##_do_init(void); \
-   static INLINE void m##_init(void) \
-   { \
-      if(!m##_inited) { \
-         m##_do_init(); \
-         m##_inited = TRUE; \
-      } \
-   }
-
-#endif /* U_INLINE_INIT_H_ */
diff --git a/src/gallium/drivers/nv50/nv50_context.c b/src/gallium/drivers/nv50/nv50_context.c
index 92b194a8f82..aa14e17872d 100644
--- a/src/gallium/drivers/nv50/nv50_context.c
+++ b/src/gallium/drivers/nv50/nv50_context.c
@@ -22,7 +22,6 @@
 
 #include "draw/draw_context.h"
 #include "pipe/p_defines.h"
-#include "util/u_format.h"
 
 #include "nv50_context.h"
 #include "nv50_screen.h"
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index ddc53b336fb..be64048abfc 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -27,7 +27,6 @@
 
 
 #include "util/u_memory.h"
-#include "util/u_format.h"
 #include "util/u_format_s3tc.h"
 #include "pipe/p_defines.h"
 #include "pipe/p_screen.h"
@@ -156,9 +155,25 @@ softpipe_is_format_supported( struct pipe_screen *screen,
           target == PIPE_TEXTURE_3D ||
           target == PIPE_TEXTURE_CUBE);
 
-   if(!util_format_is_supported(format))
+   switch(format) {
+   case PIPE_FORMAT_YUYV:
+   case PIPE_FORMAT_UYVY:
       return FALSE;
 
+   case PIPE_FORMAT_DXT1_RGB:
+   case PIPE_FORMAT_DXT1_RGBA:
+   case PIPE_FORMAT_DXT3_RGBA:
+   case PIPE_FORMAT_DXT5_RGBA:
+      return util_format_s3tc_enabled;
+
+   case PIPE_FORMAT_Z32_FLOAT:
+   case PIPE_FORMAT_NONE:
+      return FALSE;
+
+   default:
+      break;
+   }
+
    if(tex_usage & (PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
                    PIPE_TEXTURE_USAGE_SCANOUT |
                    PIPE_TEXTURE_USAGE_SHARED)) {
@@ -166,6 +181,8 @@ softpipe_is_format_supported( struct pipe_screen *screen,
          return FALSE;
    }
 
+   /* XXX: this is often a lie.  Pull in logic from llvmpipe to fix.
+    */
    return TRUE;
 }
 
@@ -224,6 +241,8 @@ softpipe_create_screen(struct sw_winsys *winsys)
    screen->base.context_create = softpipe_create_context;
    screen->base.flush_frontbuffer = softpipe_flush_frontbuffer;
 
+   util_format_s3tc_init();
+
    softpipe_init_screen_texture_funcs(&screen->base);
    softpipe_init_screen_buffer_funcs(&screen->base);
    softpipe_init_screen_fence_funcs(&screen->base);