From: Luo Xionghu <xionghu....@intel.com>
v2: use random input data; update comments.
v3: change the image attribute to __write_only.
Signed-off-by: Luo Xionghu <xionghu....@intel.com>
---
benchmark/CMakeLists.txt | 1 +
benchmark/benchmark_copy_buffer_to_image.cpp | 66 ++++++++++++++++++++++
.../cl_internal_copy_buffer_to_image_2d_align16.cl | 2 +-
3 files changed, 68 insertions(+), 1 deletion(-)
create mode 100644 benchmark/benchmark_copy_buffer_to_image.cpp
diff --git a/benchmark/CMakeLists.txt b/benchmark/CMakeLists.txt
index 7bd61ee..3e43a21 100644
--- a/benchmark/CMakeLists.txt
+++ b/benchmark/CMakeLists.txt
@@ -15,6 +15,7 @@ set (benchmark_sources
benchmark_use_host_ptr_buffer.cpp
benchmark_read_buffer.cpp
benchmark_read_image.cpp
+ benchmark_copy_buffer_to_image.cpp
benchmark_copy_image_to_buffer.cpp)
diff --git a/benchmark/benchmark_copy_buffer_to_image.cpp
b/benchmark/benchmark_copy_buffer_to_image.cpp
new file mode 100644
index 0000000..2177cfe
--- /dev/null
+++ b/benchmark/benchmark_copy_buffer_to_image.cpp
@@ -0,0 +1,66 @@
+#include <string.h>
+#include "utests/utest_helper.hpp"
+#include <sys/time.h>
+
+#define IMAGE_BPP 2
+
+double benchmark_copy_buffer_to_image(void)
+{
+ struct timeval start,stop;
+ const size_t w = 960 * 4;
+ const size_t h = 540 * 4;
+ const size_t sz = IMAGE_BPP * w * h;
+ cl_image_format format;
+ cl_image_desc desc;
+
+ memset(&desc, 0x0, sizeof(cl_image_desc));
+ memset(&format, 0x0, sizeof(cl_image_format));
+
+ // Setup image and buffer
+ buf_data[0] = (unsigned short*) malloc(sz);
+ for (uint32_t i = 0; i < w*h; ++i) {
+ ((unsigned short*)buf_data[0])[i] = (rand() & 0xffff);
+ }
+
+ format.image_channel_order = CL_R;
+ format.image_channel_data_type = CL_UNSIGNED_INT16;
+ desc.image_type = CL_MEM_OBJECT_IMAGE2D;
+ desc.image_width = w;
+ desc.image_height = h;
+ desc.image_row_pitch = 0;
+ OCL_CREATE_BUFFER(buf[0], CL_MEM_COPY_HOST_PTR, sz, buf_data[0]);
+ OCL_CREATE_IMAGE(buf[1], 0, &format, &desc, NULL);
+
+ /*copy buffer to image*/
+ size_t origin[3] = {0, 0, 0};
+ size_t region[3] = {w, h, 1};
+
+ OCL_CALL (clEnqueueCopyBufferToImage, queue, buf[0], buf[1], 0, origin,
region,
+ 0, NULL, NULL);
+ OCL_FINISH();
+ OCL_MAP_BUFFER_GTT(1);
+ /*check result*/
+ for (uint32_t j = 0; j < h; ++j)
+ for (uint32_t i = 0; i < w; i++)
+ {
+ OCL_ASSERT(((unsigned short*)buf_data[0])[j * w + i] == ((unsigned
short*)buf_data[1])[j * w + i]);
+ }
+ OCL_UNMAP_BUFFER_GTT(1);
+ gettimeofday(&start,0);
+
+ for (uint32_t i=0; i<100; i++) {
+ OCL_CALL (clEnqueueCopyBufferToImage, queue, buf[0], buf[1], 0, origin,
region,
+ 0, NULL, NULL);
+ }
+ OCL_FINISH();
+
+ gettimeofday(&stop,0);
+ free(buf_data[0]);
+ buf_data[0] = NULL;
+
+ double elapsed = time_subtract(&stop, &start, 0);
+
+ return BANDWIDTH(sz * 100, elapsed);
+}
+
+MAKE_BENCHMARK_FROM_FUNCTION(benchmark_copy_buffer_to_image);
diff --git a/src/kernels/cl_internal_copy_buffer_to_image_2d_align16.cl
b/src/kernels/cl_internal_copy_buffer_to_image_2d_align16.cl
index e4cef73..5b32cd5 100644
--- a/src/kernels/cl_internal_copy_buffer_to_image_2d_align16.cl
+++ b/src/kernels/cl_internal_copy_buffer_to_image_2d_align16.cl
@@ -1,4 +1,4 @@
-kernel void __cl_copy_buffer_to_image_2d_align16(__read_only image2d_t image,
global uint4* buffer,
+kernel void __cl_copy_buffer_to_image_2d_align16(__write_only image2d_t image,
global uint4* buffer,
unsigned int region0, unsigned int
region1, unsigned int region2,
unsigned int dst_origin0, unsigned int
dst_origin1, unsigned int dst_origin2,
unsigned int src_offset)
--
1.9.1
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