From 093c12c5d90bc3df4aa4ce55912c005a10f070da Mon Sep 17 00:00:00 2001
From: Junyan He <junyan.he@linux.intel.com>
Date: Wed, 26 Mar 2014 18:28:02 +0800
Subject: [PATCH] Add one tests case specific for unaligned buffer copy.

Signed-off-by: Junyan He <junyan.he@linux.intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
---
 utests/CMakeLists.txt                 |   1 +
 utests/enqueue_copy_buf.cpp           |   4 +-
 utests/enqueue_copy_buf_unaligned.cpp | 118 ++++++++++++++++++++++++++++++++++
 3 files changed, 121 insertions(+), 2 deletions(-)
 create mode 100644 utests/enqueue_copy_buf_unaligned.cpp

diff --git a/utests/CMakeLists.txt b/utests/CMakeLists.txt
index 49bcf62..9ca9c8b 100644
--- a/utests/CMakeLists.txt
+++ b/utests/CMakeLists.txt
@@ -171,6 +171,7 @@ set (utests_sources
   load_program_from_bin.cpp
   profiling_exec.cpp
   enqueue_copy_buf.cpp
+  enqueue_copy_buf_unaligned.cpp
   utest_assert.cpp
   utest.cpp
   utest_file_map.cpp
diff --git a/utests/enqueue_copy_buf.cpp b/utests/enqueue_copy_buf.cpp
index 969eaa8..b647b7e 100644
--- a/utests/enqueue_copy_buf.cpp
+++ b/utests/enqueue_copy_buf.cpp
@@ -1,6 +1,6 @@
 #include "utest_helper.hpp"
 
-void test_copy_buf(size_t sz, size_t src_off, size_t dst_off, size_t cb)
+static void test_copy_buf(size_t sz, size_t src_off, size_t dst_off, size_t cb)
 {
     unsigned int i;
     OCL_MAP_BUFFER(0);
@@ -56,7 +56,7 @@ void enqueue_copy_buf(void)
     OCL_CREATE_BUFFER(buf[0], 0, sz * sizeof(char), NULL);
     OCL_CREATE_BUFFER(buf[1], 0, sz * sizeof(char), NULL);
 
-    for (i=0; i<sz; i+=8) {
+    for (i=0; i<sz; i+=7) {
         for (j=0; j<sz; j+=10) {
             test_copy_buf(sz, i, j, sz/2);
         }
diff --git a/utests/enqueue_copy_buf_unaligned.cpp b/utests/enqueue_copy_buf_unaligned.cpp
new file mode 100644
index 0000000..e1bd0aa
--- /dev/null
+++ b/utests/enqueue_copy_buf_unaligned.cpp
@@ -0,0 +1,118 @@
+#include "utest_helper.hpp"
+
+static void test_copy_buf(size_t sz, size_t src_off, size_t dst_off, size_t cb)
+{
+    unsigned int i;
+    OCL_MAP_BUFFER(0);
+
+    for (i=0; i < sz; i++) {
+        ((char*)buf_data[0])[i] = (rand() & 31);
+    }
+
+    OCL_UNMAP_BUFFER(0);
+
+    OCL_MAP_BUFFER(1);
+
+    for (i=0; i < sz; i++) {
+        ((char*)buf_data[1])[i] = 64;
+    }
+
+    OCL_UNMAP_BUFFER(1);
+
+    if (src_off + cb > sz || dst_off + cb > sz) {
+        /* Expect Error. */
+        OCL_ASSERT(clEnqueueCopyBuffer(queue, buf[0], buf[1],
+                                       src_off, dst_off, cb*sizeof(char), 0, NULL, NULL));
+        return;
+    }
+
+    OCL_ASSERT(!clEnqueueCopyBuffer(queue, buf[0], buf[1],
+                                    src_off, dst_off, cb*sizeof(char), 0, NULL, NULL));
+
+    OCL_MAP_BUFFER(0);
+    OCL_MAP_BUFFER(1);
+
+#if 0
+    printf ("@@@@@@@@@ cb is %d\n", cb);
+    printf ("@@@@@@@@@ src_off is %d\n", src_off);
+    printf ("@@@@@@@@@ dst_off is %d\n", dst_off);
+    printf("\n########### Src buffer: \n");
+    for (i = 0; i < sz; ++i)
+        printf(" %2.2u", ((unsigned char*)buf_data[0])[i]);
+
+    printf("\n########### dst buffer: \n");
+    for (i = 0; i < sz; ++i)
+        printf(" %2.2u", ((unsigned char*)buf_data[1])[i]);
+#endif
+
+    // Check results
+    for (i = 0; i < cb; ++i) {
+        if (((char*)buf_data[0])[i +src_off] != ((char*)buf_data[1])[i + dst_off]) {
+            printf ("different index is %d\n", i);
+            OCL_ASSERT(0);
+        }
+    }
+
+    for (i = 0; i < dst_off; ++i) {
+        if (((char*)buf_data[1])[i] != 64) {
+            printf ("wrong write, different index is %d\n", i);
+            OCL_ASSERT(0);
+        }
+    }
+
+    for (i = dst_off + cb; i < sz; ++i) {
+        if (((char*)buf_data[1])[i] != 64) {
+            printf ("wrong write, different index is %d\n", i);
+            OCL_ASSERT(0);
+        }
+    }
+
+    OCL_UNMAP_BUFFER(0);
+    OCL_UNMAP_BUFFER(1);
+
+}
+
+void enqueue_copy_buf_unaligned(void)
+{
+    size_t i;
+    size_t j;
+    const size_t sz = 1024;
+    int offset = 0;
+
+    OCL_CREATE_BUFFER(buf[0], 0, sz * sizeof(char), NULL);
+    OCL_CREATE_BUFFER(buf[1], 0, sz * sizeof(char), NULL);
+
+#if 1
+    /* Test the same offset cases. */
+    for (i=0; i<sz; i+=32) {
+        for (j=64; j<sz; j+=32) {
+	    offset = (rand() & 3);
+            test_copy_buf(sz, i + offset, j + offset, ((rand() & 31) + 1));
+        }
+    }
+#endif
+
+#if 1
+    /* Test the dst small offset cases. */
+    for (i=0; i<sz; i+=32) {
+        for (j=64; j<sz; j+=32) {
+	    offset = (rand() & 2);
+            test_copy_buf(sz, i + offset + 1, j + offset, ((rand() & 31) + 1));
+        }
+    }
+#endif
+
+#if 1
+    /* Test the dst big offset cases. */
+    for (i=0; i<sz; i+=32) {
+        for (j=64; j<sz; j+=32) {
+	    offset = (rand() & 2);
+            test_copy_buf(sz, i + offset, j + offset + 1, ((rand() & 31) + 1));
+        }
+    }
+#endif
+//            test_copy_buf(sz, 0, 1, 17);
+
+}
+
+MAKE_UTEST_FROM_FUNCTION(enqueue_copy_buf_unaligned);
-- 
2.7.4