llvmpipe: Factor out shared test code into a separate module.
diff --git a/src/gallium/drivers/llvmpipe/lp_test_main.c b/src/gallium/drivers/llvmpipe/lp_test_main.c
new file mode 100644
index 0000000..2ce3fa1
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_test_main.c
@@ -0,0 +1,404 @@
+/**************************************************************************
+ *
+ * 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
+ * Shared testing code.
+ *
+ * @author Jose Fonseca <jfonseca@vmware.com>
+ */
+
+
+#include "lp_bld_const.h"
+#include "lp_test.h"
+
+
+void
+dump_type(FILE *fp,
+ union lp_type type)
+{
+ fprintf(fp, "%s%u%sx%u",
+ type.floating ? "f" : (type.fixed ? "h" : (type.sign ? "s" : "u")),
+ type.width,
+ type.norm ? "n" : "",
+ type.length);
+}
+
+
+double
+read_elem(union lp_type type, const void *src, unsigned index)
+{
+ double scale = lp_const_scale(type);
+ double value;
+ assert(index < type.length);
+ if (type.floating) {
+ switch(type.width) {
+ case 32:
+ value = *((const float *)src + index);
+ break;
+ case 64:
+ value = *((const double *)src + index);
+ break;
+ default:
+ assert(0);
+ return 0.0;
+ }
+ }
+ else {
+ if(type.sign) {
+ switch(type.width) {
+ case 8:
+ value = *((const int8_t *)src + index);
+ break;
+ case 16:
+ value = *((const int16_t *)src + index);
+ break;
+ case 32:
+ value = *((const int32_t *)src + index);
+ break;
+ case 64:
+ value = *((const int64_t *)src + index);
+ break;
+ default:
+ assert(0);
+ return 0.0;
+ }
+ }
+ else {
+ switch(type.width) {
+ case 8:
+ value = *((const uint8_t *)src + index);
+ break;
+ case 16:
+ value = *((const uint16_t *)src + index);
+ break;
+ case 32:
+ value = *((const uint32_t *)src + index);
+ break;
+ case 64:
+ value = *((const uint64_t *)src + index);
+ break;
+ default:
+ assert(0);
+ return 0.0;
+ }
+ }
+ }
+ return value/scale;
+}
+
+
+void
+write_elem(union lp_type type, void *dst, unsigned index, double src)
+{
+ double scale = lp_const_scale(type);
+ double value = scale*src;
+ assert(index < type.length);
+ if (type.floating) {
+ switch(type.width) {
+ case 32:
+ *((float *)dst + index) = (float)(value);
+ break;
+ case 64:
+ *((double *)dst + index) = value;
+ break;
+ default:
+ assert(0);
+ }
+ }
+ else {
+ if(type.sign) {
+ switch(type.width) {
+ case 8:
+ *((int8_t *)dst + index) = (int8_t)round(value);
+ break;
+ case 16:
+ *((int16_t *)dst + index) = (int16_t)round(value);
+ break;
+ case 32:
+ *((int32_t *)dst + index) = (int32_t)round(value);
+ break;
+ case 64:
+ *((int64_t *)dst + index) = (int32_t)round(value);
+ break;
+ default:
+ assert(0);
+ }
+ }
+ else {
+ switch(type.width) {
+ case 8:
+ *((uint8_t *)dst + index) = (uint8_t)round(value);
+ break;
+ case 16:
+ *((uint16_t *)dst + index) = (uint16_t)round(value);
+ break;
+ case 32:
+ *((uint32_t *)dst + index) = (uint32_t)round(value);
+ break;
+ case 64:
+ *((uint64_t *)dst + index) = (uint64_t)round(value);
+ break;
+ default:
+ assert(0);
+ }
+ }
+ }
+}
+
+
+void
+random_elem(union lp_type type, void *dst, unsigned index)
+{
+ assert(index < type.length);
+ if (type.floating) {
+ double value = (double)random()/(double)RAND_MAX;
+ if(!type.norm)
+ value += (double)random();
+ if(type.sign)
+ if(random() & 1)
+ value = -value;
+ switch(type.width) {
+ case 32:
+ *((float *)dst + index) = (float)value;
+ break;
+ case 64:
+ *((double *)dst + index) = value;
+ break;
+ default:
+ assert(0);
+ }
+ }
+ else {
+ switch(type.width) {
+ case 8:
+ *((uint8_t *)dst + index) = (uint8_t)random();
+ break;
+ case 16:
+ *((uint16_t *)dst + index) = (uint16_t)random();
+ break;
+ case 32:
+ *((uint32_t *)dst + index) = (uint32_t)random();
+ break;
+ case 64:
+ *((uint64_t *)dst + index) = (uint64_t)random();
+ break;
+ default:
+ assert(0);
+ }
+ }
+}
+
+
+void
+read_vec(union lp_type type, const void *src, double *dst)
+{
+ unsigned i;
+ for (i = 0; i < type.length; ++i)
+ dst[i] = read_elem(type, src, i);
+}
+
+
+void
+write_vec(union lp_type type, void *dst, const double *src)
+{
+ unsigned i;
+ for (i = 0; i < type.length; ++i)
+ write_elem(type, dst, i, src[i]);
+}
+
+
+float
+random_float(void)
+{
+ return (float)((double)random()/(double)RAND_MAX);
+}
+
+
+void
+random_vec(union lp_type type, void *dst)
+{
+ unsigned i;
+ for (i = 0; i < type.length; ++i)
+ random_elem(type, dst, i);
+}
+
+
+boolean
+compare_vec(union lp_type type, const void *res, const double *ref)
+{
+ double eps;
+ unsigned i;
+
+ if (type.floating) {
+ switch(type.width) {
+ case 32:
+ eps = FLT_EPSILON;
+ break;
+ case 64:
+ eps = DBL_EPSILON;
+ break;
+ default:
+ assert(0);
+ eps = 0.0;
+ break;
+ }
+ }
+ else {
+ double scale = lp_const_scale(type);
+ eps = 1.0/scale;
+ }
+
+ for (i = 0; i < type.length; ++i) {
+ double res_elem = read_elem(type, res, i);
+ double ref_elem = ref[i];
+ double delta = fabs(res_elem - ref_elem);
+ if(delta >= 2.0*eps)
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+
+void
+dump_vec(FILE *fp, union lp_type type, const void *src)
+{
+ unsigned i;
+ for (i = 0; i < type.length; ++i) {
+ if(i)
+ fprintf(fp, " ");
+ if (type.floating) {
+ double value;
+ switch(type.width) {
+ case 32:
+ value = *((const float *)src + i);
+ break;
+ case 64:
+ value = *((const double *)src + i);
+ break;
+ default:
+ assert(0);
+ value = 0.0;
+ }
+ fprintf(fp, "%f", value);
+ }
+ else {
+ if(type.sign) {
+ long long value;
+ const char *format;
+ switch(type.width) {
+ case 8:
+ value = *((const int8_t *)src + i);
+ format = "%3lli";
+ break;
+ case 16:
+ value = *((const int16_t *)src + i);
+ format = "%5lli";
+ break;
+ case 32:
+ value = *((const int32_t *)src + i);
+ format = "%10lli";
+ break;
+ case 64:
+ value = *((const int64_t *)src + i);
+ format = "%20lli";
+ break;
+ default:
+ assert(0);
+ value = 0.0;
+ format = "?";
+ }
+ fprintf(fp, format, value);
+ }
+ else {
+ unsigned long long value;
+ const char *format;
+ switch(type.width) {
+ case 8:
+ value = *((const uint8_t *)src + i);
+ format = "%4llu";
+ break;
+ case 16:
+ value = *((const uint16_t *)src + i);
+ format = "%6llu";
+ break;
+ case 32:
+ value = *((const uint32_t *)src + i);
+ format = "%11llu";
+ break;
+ case 64:
+ value = *((const uint64_t *)src + i);
+ format = "%21llu";
+ break;
+ default:
+ assert(0);
+ value = 0.0;
+ format = "?";
+ }
+ fprintf(fp, format, value);
+ }
+ }
+ }
+}
+
+
+int main(int argc, char **argv)
+{
+ unsigned verbose = 0;
+ FILE *fp = NULL;
+ unsigned long n = 1000;
+ unsigned i;
+ boolean success;
+
+ for(i = 1; i < argc; ++i) {
+ if(strcmp(argv[i], "-v") == 0)
+ ++verbose;
+ else if(strcmp(argv[i], "-o") == 0)
+ fp = fopen(argv[++i], "wt");
+ else
+ n = atoi(argv[i]);
+ }
+
+ if(fp) {
+ /* Warm up the caches */
+ test_some(0, NULL, 100);
+
+ write_tsv_header(fp);
+ }
+
+ if(n)
+ success = test_some(verbose, fp, n);
+ else
+ success = test_all(verbose, fp);
+
+ if(fp)
+ fclose(fp);
+
+ return success ? 0 : 1;
+}