From: Luo Xionghu <[email protected]> v2: check cl_khr_image2d_from_buffer support first; use CL_DEVICE_IMAGE_BASE_ADDRESS_ALIGNMENT to allocate memory. v3: fix clGetDeviceInfo use.
Signed-off-by: Luo Xionghu <[email protected]> --- utests/CMakeLists.txt | 1 + utests/image_from_buffer.cpp | 82 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 83 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..a56e6ff --- /dev/null +++ b/utests/image_from_buffer.cpp @@ -0,0 +1,82 @@ +#include <string.h> +#include "utest_helper.hpp" +#include <malloc.h> +#include <cstring> + +static void image_from_buffer(void) +{ + size_t param_value_size; + std::string extensionStr; + OCL_CALL (clGetPlatformInfo, platform, CL_PLATFORM_EXTENSIONS, 0, 0, ¶m_value_size); + std::vector<char> param_value(param_value_size); + OCL_CALL (clGetPlatformInfo, platform, CL_PLATFORM_EXTENSIONS, param_value_size, param_value.empty() ? NULL : ¶m_value.front(), ¶m_value_size); + if (!param_value.empty()) + extensionStr = std::string(¶m_value.front(), param_value_size-1); + + if (!std::strstr(extensionStr.c_str(), "cl_khr_image2d_from_buffer")) { + return; + } + + size_t base_address_alignment = 0; + OCL_CALL (clGetDeviceInfo, device, CL_DEVICE_IMAGE_BASE_ADDRESS_ALIGNMENT, sizeof(base_address_alignment), &base_address_alignment, NULL); + 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(base_address_alignment, 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); + + //spec didn't tell the sequence of release buffer of image. so release either buffer or image first is ok here. + //we follow the rule of destroy the bo at the last release, then the access of buffer after release image is legal + //and vice verse. +#if 1 + clReleaseMemObject(buf[1]); + clReleaseMemObject(buff); +#else + clReleaseMemObject(buff); + clReleaseMemObject(buf[1]); +#endif +} + +MAKE_UTEST_FROM_FUNCTION(image_from_buffer); -- 1.9.1 _______________________________________________ Beignet mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/beignet
