Added checks in acl_mem_test.cpp for 1D image

1D image does not have initialization of height and depth members. Some functions check for that before they check for height and depth.
Added an image with 0 height and 0 depth to make sure that these functions don't mistakenly use the height and depth in image_desc.

Author: haoxian2

test/acl_mem_test.cpp

@@ -2270,6 +2270,65 @@ MT_TEST(acl_mem, read_write_image) {
   size_t origin[3];
   size_t region[3];
 
+  // 1D Image
+  {
+    cl_image_format image_format_1D = {CL_R, CL_FLOAT};
+    cl_image_desc image_desc_1D = {
+        CL_MEM_OBJECT_IMAGE1D, width, 0, 0, 0, 0, 0, 0, 0, {NULL}};
+    image1 = clCreateImage(m_context, 0, &image_format_1D, &image_desc_1D, 0,
+                           &status);
+    CHECK_EQUAL(CL_SUCCESS, status);
+    image2 = clCreateImage(m_context, 0, &image_format_1D, &image_desc_1D, 0,
+                           &status);
+    CHECK_EQUAL(CL_SUCCESS, status);
+
+    origin[0] = 0;
+    origin[1] = 0;
+    origin[2] = 0;
+
+    region[0] = width;
+    region[1] = 1;
+    region[2] = 1;
+
+    input_ptr = (float *)acl_malloc(sizeof(float) * (width));
+    CHECK(input_ptr != 0);
+    output_ptr = (float *)acl_malloc(sizeof(float) * (width));
+    CHECK(output_ptr != 0);
+    for (size_t row = 0; row < width; ++row) {
+      input_ptr[row] = (float)row + (float)1.5;
+      output_ptr[row] = 0.0;
+    }
+
+    status = clEnqueueWriteImage(m_cq, image1, CL_TRUE, origin, region, 0, 0,
+                                 input_ptr, 0, NULL, NULL);
+    CHECK_EQUAL(CL_SUCCESS, status);
+
+    buffer1 = clCreateBuffer(m_context, 0, sizeof(float) * width, 0, &status);
+    CHECK_EQUAL(CL_SUCCESS, status);
+
+    // Copy from 1D image to buffer
+    status = clEnqueueCopyImageToBuffer(m_cq, image1, buffer1, origin, region,
+                                        0, 0, NULL, NULL);
+    CHECK_EQUAL(CL_SUCCESS, status);
+    status = clEnqueueCopyBufferToImage(m_cq, buffer1, image2, 0, origin,
+                                        region, 0, NULL, NULL);
+    CHECK_EQUAL(CL_SUCCESS, status);
+    status = clEnqueueReadImage(m_cq, image2, CL_TRUE, origin, region, 0, 0,
+                                output_ptr, 0, NULL, NULL);
+    CHECK_EQUAL(CL_SUCCESS, status);
+
+    // Compare contents of first pointer with second pointer
+    for (size_t row = 0; row < width; ++row) {
+      CHECK(input_ptr[row] == output_ptr[row]);
+    }
+
+    CHECK_EQUAL(CL_SUCCESS, clReleaseMemObject(image1));
+    CHECK_EQUAL(CL_SUCCESS, clReleaseMemObject(image2));
+    CHECK_EQUAL(CL_SUCCESS, clReleaseMemObject(buffer1));
+    acl_free(input_ptr);
+    acl_free(output_ptr);
+  }
+
   // 2D Image
   cl_image_format image_format = {CL_R, CL_FLOAT};
   cl_image_desc image_desc = {