progs/gallium: Move into src/gallium/tests

Two reasons:
- progs will eventually have its own repository
- it is just to easy to forget updating the
  code for interface changes when it is outside of src

4 files changed, 807 insertions, 0 deletions

diff --git a/src/gallium/tests/unit/Makefile b/src/gallium/tests/unit/Makefile
new file mode 100644
index 00000000000..f3dbd7695c6
--- /dev/null
+++ b/src/gallium/tests/unit/Makefile
@@ -0,0 +1,44 @@
+# progs/gallium/simple/Makefile
+
+TOP = ../../..
+include $(TOP)/configs/current
+
+INCLUDES = \
+	-I. \
+	-I$(TOP)/src/gallium/include \
+	-I$(TOP)/src/gallium/auxiliary \
+	-I$(TOP)/src/gallium/drivers \
+	-I$(TOP)/src/gallium/winsys \
+	$(PROG_INCLUDES)
+
+LINKS = \
+	$(TOP)/src/gallium/drivers/trace/libtrace.a \
+	$(TOP)/src/gallium/winsys/sw/null/libws_null.a \
+	$(TOP)/src/gallium/drivers/softpipe/libsoftpipe.a \
+	$(GALLIUM_AUXILIARIES) \
+	$(PROG_LINKS)
+
+SOURCES = \
+	u_format_test.c \
+	u_half_test.c
+
+OBJECTS = $(SOURCES:.c=.o)
+
+PROGS = $(OBJECTS:.o=)
+
+##### TARGETS #####
+
+default: $(PROGS)
+
+clean:
+	-rm -f $(PROGS)
+	-rm -f *.o
+	-rm -f result.bmp
+
+##### RULES #####
+
+$(OBJECTS): %.o: %.c
+	$(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $(PROG_DEFINES) $< -o $@
+
+$(PROGS): %: %.o
+	$(CC) $(LDFLAGS) $< $(LINKS) -lm -lpthread -ldl -o $@
diff --git a/src/gallium/tests/unit/SConscript b/src/gallium/tests/unit/SConscript
new file mode 100644
index 00000000000..0db3bb687c6
--- /dev/null
+++ b/src/gallium/tests/unit/SConscript
@@ -0,0 +1,23 @@
+Import('*')
+
+env = env.Clone()
+
+env.Prepend(LIBS = [gallium])
+
+progs = [
+    'u_format_test',
+    'u_half_test'
+]
+
+for prog in progs:
+    prog = env.Program(
+        target = prog,
+        source = prog + '.c',
+    )
+    
+    env.InstallProgram(prog)
+
+    # http://www.scons.org/wiki/UnitTests
+    test_alias = env.Alias('unit', [prog], prog[0].abspath)
+    AlwaysBuild(test_alias)
+
diff --git a/src/gallium/tests/unit/u_format_test.c b/src/gallium/tests/unit/u_format_test.c
new file mode 100644
index 00000000000..cfde6af75e0
--- /dev/null
+++ b/src/gallium/tests/unit/u_format_test.c
@@ -0,0 +1,708 @@
+/**************************************************************************
+ *
+ * Copyright 2009-2010 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.
+ *
+ **************************************************************************/
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <float.h>
+
+#include "util/u_half.h"
+#include "util/u_format.h"
+#include "util/u_format_tests.h"
+#include "util/u_format_s3tc.h"
+
+
+static boolean
+compare_float(float x, float y)
+{
+   float error = y - x;
+
+   if (error < 0.0f)
+      error = -error;
+
+   if (error > FLT_EPSILON) {
+      return FALSE;
+   }
+
+   return TRUE;
+}
+
+
+static void
+print_packed(const struct util_format_description *format_desc,
+             const char *prefix,
+             const uint8_t *packed,
+             const char *suffix)
+{
+   unsigned i;
+   const char *sep = "";
+
+   printf("%s", prefix);
+   for (i = 0; i < format_desc->block.bits/8; ++i) {
+      printf("%s%02x", sep, packed[i]);
+      sep = " ";
+   }
+   printf("%s", suffix);
+}
+
+
+static void
+print_unpacked_rgba_doubl(const struct util_format_description *format_desc,
+                     const char *prefix,
+                     const double unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH][4],
+                     const char *suffix)
+{
+   unsigned i, j;
+   const char *sep = "";
+
+   printf("%s", prefix);
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         printf("%s{%f, %f, %f, %f}", sep, unpacked[i][j][0], unpacked[i][j][1], unpacked[i][j][2], unpacked[i][j][3]);
+         sep = ", ";
+      }
+      sep = ",\n";
+   }
+   printf("%s", suffix);
+}
+
+
+static void
+print_unpacked_rgba_float(const struct util_format_description *format_desc,
+                     const char *prefix,
+                     float unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH][4],
+                     const char *suffix)
+{
+   unsigned i, j;
+   const char *sep = "";
+
+   printf("%s", prefix);
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         printf("%s{%f, %f, %f, %f}", sep, unpacked[i][j][0], unpacked[i][j][1], unpacked[i][j][2], unpacked[i][j][3]);
+         sep = ", ";
+      }
+      sep = ",\n";
+   }
+   printf("%s", suffix);
+}
+
+
+static void
+print_unpacked_rgba_8unorm(const struct util_format_description *format_desc,
+                      const char *prefix,
+                      uint8_t unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH][4],
+                      const char *suffix)
+{
+   unsigned i, j;
+   const char *sep = "";
+
+   printf("%s", prefix);
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         printf("%s{0x%02x, 0x%02x, 0x%02x, 0x%02x}", sep, unpacked[i][j][0], unpacked[i][j][1], unpacked[i][j][2], unpacked[i][j][3]);
+         sep = ", ";
+      }
+   }
+   printf("%s", suffix);
+}
+
+
+static void
+print_unpacked_z_float(const struct util_format_description *format_desc,
+                       const char *prefix,
+                       float unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH],
+                       const char *suffix)
+{
+   unsigned i, j;
+   const char *sep = "";
+
+   printf("%s", prefix);
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         printf("%s%f", sep, unpacked[i][j]);
+         sep = ", ";
+      }
+      sep = ",\n";
+   }
+   printf("%s", suffix);
+}
+
+
+static void
+print_unpacked_z_32unorm(const struct util_format_description *format_desc,
+                         const char *prefix,
+                         uint32_t unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH],
+                         const char *suffix)
+{
+   unsigned i, j;
+   const char *sep = "";
+
+   printf("%s", prefix);
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         printf("%s0x%08x", sep, unpacked[i][j]);
+         sep = ", ";
+      }
+   }
+   printf("%s", suffix);
+}
+
+
+static void
+print_unpacked_s_8uscaled(const struct util_format_description *format_desc,
+                          const char *prefix,
+                          uint8_t unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH],
+                          const char *suffix)
+{
+   unsigned i, j;
+   const char *sep = "";
+
+   printf("%s", prefix);
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         printf("%s0x%02x", sep, unpacked[i][j]);
+         sep = ", ";
+      }
+   }
+   printf("%s", suffix);
+}
+
+
+static boolean
+test_format_fetch_rgba_float(const struct util_format_description *format_desc,
+                             const struct util_format_test_case *test)
+{
+   float unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH][4] = { { { 0 } } };
+   unsigned i, j, k;
+   boolean success;
+
+   success = TRUE;
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         format_desc->fetch_rgba_float(unpacked[i][j], test->packed, j, i);
+         for (k = 0; k < 4; ++k) {
+            if (!compare_float(test->unpacked[i][j][k], unpacked[i][j][k])) {
+               success = FALSE;
+            }
+         }
+      }
+   }
+
+   if (!success) {
+      print_unpacked_rgba_float(format_desc, "FAILED: ", unpacked, " obtained\n");
+      print_unpacked_rgba_doubl(format_desc, "        ", test->unpacked, " expected\n");
+   }
+
+   return success;
+}
+
+
+static boolean
+test_format_unpack_rgba_float(const struct util_format_description *format_desc,
+                              const struct util_format_test_case *test)
+{
+   float unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH][4] = { { { 0 } } };
+   unsigned i, j, k;
+   boolean success;
+
+   format_desc->unpack_rgba_float(&unpacked[0][0][0], sizeof unpacked[0],
+                             test->packed, 0,
+                             format_desc->block.width, format_desc->block.height);
+
+   success = TRUE;
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         for (k = 0; k < 4; ++k) {
+            if (!compare_float(test->unpacked[i][j][k], unpacked[i][j][k])) {
+               success = FALSE;
+            }
+         }
+      }
+   }
+
+   if (!success) {
+      print_unpacked_rgba_float(format_desc, "FAILED: ", unpacked, " obtained\n");
+      print_unpacked_rgba_doubl(format_desc, "        ", test->unpacked, " expected\n");
+   }
+
+   return success;
+}
+
+
+static boolean
+test_format_pack_rgba_float(const struct util_format_description *format_desc,
+                            const struct util_format_test_case *test)
+{
+   float unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH][4];
+   uint8_t packed[UTIL_FORMAT_MAX_PACKED_BYTES];
+   unsigned i, j, k;
+   boolean success;
+
+   if (test->format == PIPE_FORMAT_DXT1_RGBA) {
+      /*
+       * Skip S3TC as packed representation is not canonical.
+       *
+       * TODO: Do a round trip conversion.
+       */
+      return TRUE;
+   }
+
+   memset(packed, 0, sizeof packed);
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         for (k = 0; k < 4; ++k) {
+            unpacked[i][j][k] = (float) test->unpacked[i][j][k];
+         }
+      }
+   }
+
+   format_desc->pack_rgba_float(packed, 0,
+                           &unpacked[0][0][0], sizeof unpacked[0],
+                           format_desc->block.width, format_desc->block.height);
+
+   success = TRUE;
+   for (i = 0; i < format_desc->block.bits/8; ++i)
+      if ((test->packed[i] & test->mask[i]) != (packed[i] & test->mask[i]))
+         success = FALSE;
+
+   if (!success) {
+      print_packed(format_desc, "FAILED: ", packed, " obtained\n");
+      print_packed(format_desc, "        ", test->packed, " expected\n");
+   }
+
+   return success;
+}
+
+
+static boolean
+convert_float_to_8unorm(uint8_t *dst, const double *src)
+{
+   unsigned i;
+   boolean accurate = TRUE;
+
+   for (i = 0; i < UTIL_FORMAT_MAX_UNPACKED_HEIGHT*UTIL_FORMAT_MAX_UNPACKED_WIDTH*4; ++i) {
+      if (src[i] < 0.0) {
+         accurate = FALSE;
+         dst[i] = 0;
+      }
+      else if (src[i] > 1.0) {
+         accurate = FALSE;
+         dst[i] = 255;
+      }
+      else {
+         dst[i] = src[i] * 255.0;
+      }
+   }
+
+   return accurate;
+}
+
+
+static boolean
+test_format_unpack_rgba_8unorm(const struct util_format_description *format_desc,
+                               const struct util_format_test_case *test)
+{
+   uint8_t unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH][4] = { { { 0 } } };
+   uint8_t expected[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH][4] = { { { 0 } } };
+   unsigned i, j, k;
+   boolean success;
+
+   format_desc->unpack_rgba_8unorm(&unpacked[0][0][0], sizeof unpacked[0],
+                              test->packed, 0,
+                              format_desc->block.width, format_desc->block.height);
+
+   convert_float_to_8unorm(&expected[0][0][0], &test->unpacked[0][0][0]);
+
+   success = TRUE;
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         for (k = 0; k < 4; ++k) {
+            if (expected[i][j][k] != unpacked[i][j][k]) {
+               success = FALSE;
+            }
+         }
+      }
+   }
+
+   if (!success) {
+      print_unpacked_rgba_8unorm(format_desc, "FAILED: ", unpacked, " obtained\n");
+      print_unpacked_rgba_8unorm(format_desc, "        ", expected, " expected\n");
+   }
+
+   return success;
+}
+
+
+static boolean
+test_format_pack_rgba_8unorm(const struct util_format_description *format_desc,
+                             const struct util_format_test_case *test)
+{
+   uint8_t unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH][4];
+   uint8_t packed[UTIL_FORMAT_MAX_PACKED_BYTES];
+   unsigned i;
+   boolean success;
+
+   if (test->format == PIPE_FORMAT_DXT1_RGBA) {
+      /*
+       * Skip S3TC as packed representation is not canonical.
+       *
+       * TODO: Do a round trip conversion.
+       */
+      return TRUE;
+   }
+
+   if (!convert_float_to_8unorm(&unpacked[0][0][0], &test->unpacked[0][0][0])) {
+      /*
+       * Skip test cases which cannot be represented by four unorm bytes.
+       */
+      return TRUE;
+   }
+
+   memset(packed, 0, sizeof packed);
+
+   format_desc->pack_rgba_8unorm(packed, 0,
+                            &unpacked[0][0][0], sizeof unpacked[0],
+                            format_desc->block.width, format_desc->block.height);
+
+   success = TRUE;
+   for (i = 0; i < format_desc->block.bits/8; ++i)
+      if ((test->packed[i] & test->mask[i]) != (packed[i] & test->mask[i]))
+         success = FALSE;
+
+   if (!success) {
+      print_packed(format_desc, "FAILED: ", packed, " obtained\n");
+      print_packed(format_desc, "        ", test->packed, " expected\n");
+   }
+
+   return success;
+}
+
+
+static boolean
+test_format_unpack_z_float(const struct util_format_description *format_desc,
+                              const struct util_format_test_case *test)
+{
+   float unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH] = { { 0 } };
+   unsigned i, j;
+   boolean success;
+
+   format_desc->unpack_z_float(&unpacked[0][0], sizeof unpacked[0],
+                               test->packed, 0,
+                               format_desc->block.width, format_desc->block.height);
+
+   success = TRUE;
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         if (!compare_float(test->unpacked[i][j][0], unpacked[i][j])) {
+            success = FALSE;
+         }
+      }
+   }
+
+   if (!success) {
+      print_unpacked_z_float(format_desc, "FAILED: ", unpacked, " obtained\n");
+      print_unpacked_rgba_doubl(format_desc, "        ", test->unpacked, " expected\n");
+   }
+
+   return success;
+}
+
+
+static boolean
+test_format_pack_z_float(const struct util_format_description *format_desc,
+                            const struct util_format_test_case *test)
+{
+   float unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH];
+   uint8_t packed[UTIL_FORMAT_MAX_PACKED_BYTES];
+   unsigned i, j;
+   boolean success;
+
+   memset(packed, 0, sizeof packed);
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         unpacked[i][j] = (float) test->unpacked[i][j][0];
+         if (test->unpacked[i][j][1]) {
+            return TRUE;
+         }
+      }
+   }
+
+   format_desc->pack_z_float(packed, 0,
+                             &unpacked[0][0], sizeof unpacked[0],
+                             format_desc->block.width, format_desc->block.height);
+
+   success = TRUE;
+   for (i = 0; i < format_desc->block.bits/8; ++i)
+      if ((test->packed[i] & test->mask[i]) != (packed[i] & test->mask[i]))
+         success = FALSE;
+
+   if (!success) {
+      print_packed(format_desc, "FAILED: ", packed, " obtained\n");
+      print_packed(format_desc, "        ", test->packed, " expected\n");
+   }
+
+   return success;
+}
+
+
+static boolean
+test_format_unpack_z_32unorm(const struct util_format_description *format_desc,
+                               const struct util_format_test_case *test)
+{
+   uint32_t unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH] = { { 0 } };
+   uint32_t expected[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH] = { { 0 } };
+   unsigned i, j;
+   boolean success;
+
+   format_desc->unpack_z_32unorm(&unpacked[0][0], sizeof unpacked[0],
+                                 test->packed, 0,
+                                 format_desc->block.width, format_desc->block.height);
+
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         expected[i][j] = test->unpacked[i][j][0] * 0xffffffff;
+      }
+   }
+
+   success = TRUE;
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         if (expected[i][j] != unpacked[i][j]) {
+            success = FALSE;
+         }
+      }
+   }
+
+   if (!success) {
+      print_unpacked_z_32unorm(format_desc, "FAILED: ", unpacked, " obtained\n");
+      print_unpacked_z_32unorm(format_desc, "        ", expected, " expected\n");
+   }
+
+   return success;
+}
+
+
+static boolean
+test_format_pack_z_32unorm(const struct util_format_description *format_desc,
+                             const struct util_format_test_case *test)
+{
+   uint32_t unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH];
+   uint8_t packed[UTIL_FORMAT_MAX_PACKED_BYTES];
+   unsigned i, j;
+   boolean success;
+
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         unpacked[i][j] = test->unpacked[i][j][0] * 0xffffffff;
+         if (test->unpacked[i][j][1]) {
+            return TRUE;
+         }
+      }
+   }
+
+   memset(packed, 0, sizeof packed);
+
+   format_desc->pack_z_32unorm(packed, 0,
+                               &unpacked[0][0], sizeof unpacked[0],
+                               format_desc->block.width, format_desc->block.height);
+
+   success = TRUE;
+   for (i = 0; i < format_desc->block.bits/8; ++i)
+      if ((test->packed[i] & test->mask[i]) != (packed[i] & test->mask[i]))
+         success = FALSE;
+
+   if (!success) {
+      print_packed(format_desc, "FAILED: ", packed, " obtained\n");
+      print_packed(format_desc, "        ", test->packed, " expected\n");
+   }
+
+   return success;
+}
+
+
+static boolean
+test_format_unpack_s_8uscaled(const struct util_format_description *format_desc,
+                               const struct util_format_test_case *test)
+{
+   uint8_t unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH] = { { 0 } };
+   uint8_t expected[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH] = { { 0 } };
+   unsigned i, j;
+   boolean success;
+
+   format_desc->unpack_s_8uscaled(&unpacked[0][0], sizeof unpacked[0],
+                                  test->packed, 0,
+                                  format_desc->block.width, format_desc->block.height);
+
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         expected[i][j] = test->unpacked[i][j][1];
+      }
+   }
+
+   success = TRUE;
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         if (expected[i][j] != unpacked[i][j]) {
+            success = FALSE;
+         }
+      }
+   }
+
+   if (!success) {
+      print_unpacked_s_8uscaled(format_desc, "FAILED: ", unpacked, " obtained\n");
+      print_unpacked_s_8uscaled(format_desc, "        ", expected, " expected\n");
+   }
+
+   return success;
+}
+
+
+static boolean
+test_format_pack_s_8uscaled(const struct util_format_description *format_desc,
+                             const struct util_format_test_case *test)
+{
+   uint8_t unpacked[UTIL_FORMAT_MAX_UNPACKED_HEIGHT][UTIL_FORMAT_MAX_UNPACKED_WIDTH];
+   uint8_t packed[UTIL_FORMAT_MAX_PACKED_BYTES];
+   unsigned i, j;
+   boolean success;
+
+   for (i = 0; i < format_desc->block.height; ++i) {
+      for (j = 0; j < format_desc->block.width; ++j) {
+         unpacked[i][j] = test->unpacked[i][j][1];
+         if (test->unpacked[i][j][0]) {
+            return TRUE;
+         }
+      }
+   }
+
+   memset(packed, 0, sizeof packed);
+
+   format_desc->pack_s_8uscaled(packed, 0,
+                                &unpacked[0][0], sizeof unpacked[0],
+                                format_desc->block.width, format_desc->block.height);
+
+   success = TRUE;
+   for (i = 0; i < format_desc->block.bits/8; ++i)
+      if ((test->packed[i] & test->mask[i]) != (packed[i] & test->mask[i]))
+         success = FALSE;
+
+   if (!success) {
+      print_packed(format_desc, "FAILED: ", packed, " obtained\n");
+      print_packed(format_desc, "        ", test->packed, " expected\n");
+   }
+
+   return success;
+}
+
+
+typedef boolean
+(*test_func_t)(const struct util_format_description *format_desc,
+               const struct util_format_test_case *test);
+
+
+static boolean
+test_one_func(const struct util_format_description *format_desc,
+              test_func_t func,
+              const char *suffix)
+{
+   unsigned i;
+   bool success = TRUE;
+
+   printf("Testing util_format_%s_%s ...\n",
+          format_desc->short_name, suffix);
+
+   for (i = 0; i < util_format_nr_test_cases; ++i) {
+      const struct util_format_test_case *test = &util_format_test_cases[i];
+
+      if (test->format == format_desc->format) {
+         if (!func(format_desc, &util_format_test_cases[i])) {
+           success = FALSE;
+         }
+      }
+   }
+
+   return success;
+}
+
+
+static boolean
+test_all(void)
+{
+   enum pipe_format format;
+   bool success = TRUE;
+
+   for (format = 1; format < PIPE_FORMAT_COUNT; ++format) {
+      const struct util_format_description *format_desc;
+
+      format_desc = util_format_description(format);
+      if (!format_desc) {
+         continue;
+      }
+
+      if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC &&
+          !util_format_s3tc_enabled) {
+         continue;
+      }
+
+#     define TEST_ONE_FUNC(name) \
+      if (format_desc->name) { \
+         if (!test_one_func(format_desc, &test_format_##name, #name)) { \
+           success = FALSE; \
+         } \
+      }
+
+      TEST_ONE_FUNC(fetch_rgba_float);
+      TEST_ONE_FUNC(pack_rgba_float);
+      TEST_ONE_FUNC(unpack_rgba_float);
+      TEST_ONE_FUNC(pack_rgba_8unorm);
+      TEST_ONE_FUNC(unpack_rgba_8unorm);
+
+      TEST_ONE_FUNC(unpack_z_32unorm);
+      TEST_ONE_FUNC(pack_z_32unorm);
+      TEST_ONE_FUNC(unpack_z_float);
+      TEST_ONE_FUNC(pack_z_float);
+      TEST_ONE_FUNC(unpack_s_8uscaled);
+      TEST_ONE_FUNC(pack_s_8uscaled);
+
+#     undef TEST_ONE_FUNC
+   }
+
+   return success;
+}
+
+
+int main(int argc, char **argv)
+{
+   boolean success;
+
+   util_format_s3tc_init();
+
+   success = test_all();
+
+   return success ? 0 : 1;
+}
diff --git a/src/gallium/tests/unit/u_half_test.c b/src/gallium/tests/unit/u_half_test.c
new file mode 100644
index 00000000000..00bda7f50a6
--- /dev/null
+++ b/src/gallium/tests/unit/u_half_test.c
@@ -0,0 +1,32 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <float.h>
+
+#include "util/u_math.h"
+#include "util/u_half.h"
+
+int
+main(int argc, char **argv)
+{
+   unsigned i;
+   unsigned roundtrip_fails = 0;
+   for(i = 0; i < 1 << 16; ++i)
+   {
+      uint16_t h = (uint16_t) i;
+      union fi f;
+      uint16_t rh;
+      f.ui = util_half_to_floatui(h);
+      rh = util_floatui_to_half(f.ui);
+      if(h != rh)
+      {
+	 printf("Roundtrip failed: %x -> %x = %f -> %x\n", h, f.ui, f.f, rh);
+	 ++roundtrip_fails;
+      }
+   }
+
+   if(roundtrip_fails)
+      printf("Failure! %u/65536 half floats failed a conversion to float and back.\n", roundtrip_fails);
+   else
+      printf("Success!\n");
+   return 0;
+}