translate: add testsuite

Currently only checks all possible format conversions, and doesn't
attempt to test whether multiple buffers/elements or indices work.

diff --git a/src/gallium/tests/unit/Makefile b/src/gallium/tests/unit/Makefile
index f65958dadd573a3eede73151b219d36c9e09e3d3..345bd1f6941f06356df14f03618771952e74d81d 100644 (file)
--- a/src/gallium/tests/unit/Makefile
+++ b/src/gallium/tests/unit/Makefile
@@ -22,7 +22,8 @@ SOURCES = \
        pipe_barrier_test.c \
        u_cache_test.c \
        u_half_test.c \
-       u_format_test.c
+       u_format_test.c \
+       translate_test.c
 
 
 OBJECTS = $(SOURCES:.c=.o)

diff --git a/src/gallium/tests/unit/translate_test.c b/src/gallium/tests/unit/translate_test.c
new file mode 100644 (file)
index 0000000..473c73a
--- /dev/null
+++ b/src/gallium/tests/unit/translate_test.c
@@ -0,0 +1,170 @@
+/**************************************************************************
+ *
+ * Copyright © 2010 Luca Barbieri
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include <stdio.h>
+#include <translate/translate.h>
+#include <util/u_memory.h>
+#include <util/u_format.h>
+
+int main(int argc, char** argv)
+{
+       struct translate *(*create_fn)( const struct translate_key *key ) = 0;
+
+       struct translate_key key;
+       unsigned output_format;
+       unsigned input_format;
+       unsigned char* buffer[5];
+       unsigned count = 4;
+       unsigned i, j, k;
+       unsigned passed = 0;
+       unsigned total = 0;
+
+       create_fn = 0;
+
+       if(argc > 1 && !strcmp(argv[1], "generic"))
+               create_fn = translate_generic_create;
+       else if(argc > 1 && !strcmp(argv[1], "x86"))
+               create_fn = translate_sse2_create;
+
+       if(!create_fn)
+       {
+               printf("Usage: ./translate_test [generic|x86]\n");
+               return 1;
+       }
+
+       for(i = 0; i < Elements(buffer); ++i)
+               buffer[i] = align_malloc(4096, 4096);
+
+       key.nr_elements = 1;
+       key.element[0].input_buffer = 0;
+       key.element[0].input_offset = 0;
+       key.element[0].output_offset = 0;
+       key.element[0].type = TRANSLATE_ELEMENT_NORMAL;
+       key.element[0].instance_divisor = 0;
+
+       srand(4359025);
+       for(i = 0; i < 4096; ++i)
+               buffer[0][i] = rand() & 0x7f; /* avoid negative values that work badly when converted to unsigned format*/
+
+       for(output_format = 0; output_format < PIPE_FORMAT_COUNT; ++output_format)
+       {
+               const struct util_format_description* output_format_desc = util_format_description(output_format);
+               unsigned output_format_size = util_format_get_stride(output_format, 1);
+               if(!output_format_desc
+                       || !output_format_desc->fetch_rgba_float
+                       || !output_format_desc->pack_rgba_float
+                       || output_format_desc->colorspace != UTIL_FORMAT_COLORSPACE_RGB
+                       || output_format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN
+               )
+                       continue;
+
+               for(input_format = 0; input_format < PIPE_FORMAT_COUNT; ++input_format)
+               {
+                       const struct util_format_description* input_format_desc = util_format_description(input_format);
+                       unsigned input_format_size = util_format_get_stride(input_format, 1);
+                       struct translate* translate[2];
+                       unsigned fail = 0;
+
+                       if(!input_format_desc
+                               || !input_format_desc->fetch_rgba_float
+                               || !input_format_desc->pack_rgba_float
+                               || input_format_desc->colorspace != UTIL_FORMAT_COLORSPACE_RGB
+                               || input_format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN
+                       )
+                               continue;
+
+                       key.element[0].input_format = input_format;
+                       key.element[0].output_format = output_format;
+                       key.output_stride = output_format_size;
+                       translate[0] = create_fn(&key);
+                       if(!translate[0])
+                               continue;
+
+                       key.element[0].input_format = output_format;
+                       key.element[0].output_format = input_format;
+                       key.output_stride = input_format_size;
+                       translate[1] = create_fn(&key);
+                       if(!translate[1])
+                               goto free_translate0;
+
+                       translate[0]->set_buffer(translate[0], 0, buffer[0], input_format_size, ~0);
+                       translate[0]->run(translate[0], 0, count, 0, buffer[1]);
+                       translate[1]->set_buffer(translate[1], 0, buffer[1], output_format_size, ~0);
+                       translate[1]->run(translate[1], 0, count, 0, buffer[2]);
+                       translate[0]->set_buffer(translate[0], 0, buffer[2], input_format_size, ~0);
+                       translate[0]->run(translate[0], 0, count, 0, buffer[3]);
+                       translate[1]->set_buffer(translate[1], 0, buffer[3], output_format_size, ~0);
+                       translate[1]->run(translate[1], 0, count, 0, buffer[4]);
+
+                       for(i = 0; i < count; ++i)
+                       {
+                               float a[4];
+                               float b[4];
+                               float error = 0.03125;
+                               input_format_desc->fetch_rgba_float(a, buffer[2] + i * input_format_size, 0, 0);
+                               input_format_desc->fetch_rgba_float(b, buffer[4] + i * input_format_size, 0, 0);
+
+                               for(j = 0; j < count; ++j)
+                               {
+                                       float d = a[j] - b[j];
+                                       if(d > error || d < -error)
+                                       {
+                                               fail = 1;
+                                               break;
+                                       }
+                               }
+                       }
+
+                       if(fail)
+                       {
+                               printf("FAIL: %s -> %s -> %s -> %s -> %s\n", input_format_desc->name, output_format_desc->name, input_format_desc->name, output_format_desc->name, input_format_desc->name);
+                               for(i = 0; i < Elements(buffer); ++i)
+                               {
+                                       unsigned format_size = (i & 1) ? output_format_size : input_format_size;
+                                       printf("%c ",  (i == 2 || i == 4) ? '*' : ' ');
+                                       for(j = 0; j < count; ++j)
+                                       {
+                                               for(k = 0; k < format_size; ++k)
+                                               {
+                                                       printf("%02x", buffer[i][j * format_size + k]);
+                                               }
+                                               printf(" ");
+                                       }
+                                       printf("\n");
+                               }
+                       }
+                       else
+                               ++passed;
+                       ++total;
+
+                       translate[1]->release(translate[1]);
+free_translate0:
+                       translate[0]->release(translate[0]);
+               }
+       }
+
+       printf("%u/%u tests passed for translate_%s\n", passed, total, argv[1]);
+       return 0;
+}