[Beignet] [PATCH 3/3] add utest for creating 2d image from buffer.

[xionghu.luo at intel.com]

From: Luo Xionghu <xionghu.luo at intel.com>

Signed-off-by: Luo Xionghu <xionghu.luo at intel.com>
---
 utests/CMakeLists.txt        |  1 +
 utests/image_from_buffer.cpp | 58 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+)
 create mode 100644 utests/image_from_buffer.cpp

diff --git a/utests/CMakeLists.txt b/utests/CMakeLists.txt
index e7a9e26..bfb902c 100644
--- a/utests/CMakeLists.txt
+++ b/utests/CMakeLists.txt
@@ -204,6 +204,7 @@ set (utests_sources
   enqueue_fill_buf.cpp
   builtin_kernel_max_global_size.cpp
   image_1D_buffer.cpp
+  image_from_buffer.cpp
   compare_image_2d_and_1d_array.cpp
   compiler_fill_image_1d_array.cpp
   compiler_fill_image_2d_array.cpp
diff --git a/utests/image_from_buffer.cpp b/utests/image_from_buffer.cpp
new file mode 100644
index 0000000..f6435e8
--- /dev/null
+++ b/utests/image_from_buffer.cpp
@@ -0,0 +1,58 @@
+#include <string.h>
+#include "utest_helper.hpp"
+#include <malloc.h>
+
+static void image_from_buffer(void)
+{
+  const size_t w = 512;
+  const size_t h = 512;
+  cl_image_format format;
+  cl_image_desc desc;
+  int error;
+
+  memset(&desc, 0x0, sizeof(cl_image_desc));
+  memset(&format, 0x0, sizeof(cl_image_format));
+
+  // Setup kernel and images
+  size_t buffer_sz = sizeof(uint32_t) * w * h;
+  //buf_data[0] = (uint32_t*) malloc(buffer_sz);
+  buf_data[0] = (uint32_t*)memalign(4096, buffer_sz);
+  for (uint32_t j = 0; j < h; ++j)
+    for (uint32_t i = 0; i < w; i++)
+      ((uint32_t*)buf_data[0])[j * w + i] = j * w + i;
+
+  cl_mem buff = clCreateBuffer(ctx, CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR,
+                                      buffer_sz, buf_data[0], &error);
+
+  OCL_ASSERT(error == CL_SUCCESS);
+  format.image_channel_order = CL_RGBA;
+  format.image_channel_data_type = CL_UNSIGNED_INT8;
+  desc.image_type = CL_MEM_OBJECT_IMAGE2D;
+  desc.image_width = w;
+  desc.image_height = h;
+  desc.image_row_pitch = w * sizeof(uint32_t);
+
+  desc.buffer = 0;
+  OCL_CREATE_IMAGE(buf[0], CL_MEM_COPY_HOST_PTR, &format, &desc, buf_data[0]);
+
+  desc.buffer = buff;
+  OCL_CREATE_IMAGE(buf[1], 0, &format, &desc, NULL);
+
+  free(buf_data[0]);
+  buf_data[0] = NULL;
+
+  // Check result
+  OCL_MAP_BUFFER_GTT(0);
+  OCL_MAP_BUFFER_GTT(1);
+  for (uint32_t j = 0; j < h; ++j)
+    for (uint32_t i = 0; i < w; i++)
+    {
+      //printf("%d,%d\n", ((uint32_t*)buf_data[0])[j * w + i], ((uint32_t*)buf_data[1])[j * w + i]);
+      OCL_ASSERT(((uint32_t*)buf_data[0])[j * w + i] == ((uint32_t*)buf_data[1])[j * w + i]);
+    }
+  OCL_UNMAP_BUFFER_GTT(0);
+  OCL_UNMAP_BUFFER_GTT(1);
+}
+
+MAKE_UTEST_FROM_FUNCTION(image_from_buffer);
+
-- 
1.9.1