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-rw-r--r--src/core/CL/CLUtils.cpp40
1 files changed, 36 insertions, 4 deletions
diff --git a/src/core/CL/CLUtils.cpp b/src/core/CL/CLUtils.cpp
index 84cf88e099..709f8fa971 100644
--- a/src/core/CL/CLUtils.cpp
+++ b/src/core/CL/CLUtils.cpp
@@ -22,8 +22,8 @@
* SOFTWARE.
*/
#include "arm_compute/core/CL/CLCompileContext.h"
-#include "arm_compute/core/Error.h"
-#include "arm_compute/core/Types.h"
+#include "arm_compute/core/CL/CLKernelLibrary.h"
+#include "arm_compute/core/CL/ICLTensor.h"
#include "arm_compute/core/Validate.h"
#include "support/StringSupport.h"
@@ -32,8 +32,40 @@
namespace arm_compute
{
-cl::Image2D create_image2d_from_buffer(const cl::Context &ctx, const cl::Buffer &buffer, const TensorShape &shape2d, DataType data_type, size_t image_row_pitch, CLImage2DType type)
+cl::Image2D create_image2d_from_tensor(const ICLTensor *tensor, CLImage2DType image_type)
{
+ ARM_COMPUTE_ERROR_ON_NULLPTR(tensor);
+
+ const cl::Context &ctx = CLKernelLibrary::get().context();
+ const cl::Buffer &buffer = tensor->cl_buffer();
+ const ITensorInfo *info = tensor->info();
+ ARM_COMPUTE_ERROR_ON_MSG(info->lock_paddings(),
+ "Tensor paddings must not be locked to allow extending paddings to satisfy cl_image pitch alignment requirement");
+
+ const size_t image_w{ info->dimension(0) / 4 };
+ const size_t image_h{ info->tensor_shape().total_size() / info->dimension(0) };
+ const size_t max_image_w{ CLKernelLibrary::get().get_device().getInfo<CL_DEVICE_IMAGE2D_MAX_WIDTH>() };
+ const size_t max_image_h{ CLKernelLibrary::get().get_device().getInfo<CL_DEVICE_IMAGE2D_MAX_HEIGHT>() };
+
+ ARM_COMPUTE_UNUSED(max_image_w, max_image_h);
+ ARM_COMPUTE_ERROR_ON_MSG(image_w > max_image_w, "Image width exceeds maximum width for exporting to cl_image");
+ ARM_COMPUTE_ERROR_ON_MSG(image_h > max_image_h, "Image height exceeds maximum height for exporting to cl_image");
+
+ const TensorShape shape2d(image_w, image_h);
+ const size_t image_row_pitch = info->strides_in_bytes()[1];
+
+ return create_image2d_from_buffer(ctx, buffer, shape2d, info->data_type(), image_row_pitch, image_type);
+}
+
+cl::Image2D create_image2d_from_buffer(const cl::Context &ctx, const cl::Buffer &buffer, const TensorShape &shape2d, DataType data_type, size_t image_row_pitch, CLImage2DType image_type)
+{
+ ARM_COMPUTE_ERROR_ON_MSG(!image2d_from_buffer_supported(CLKernelLibrary::get().get_device()),
+ "The extension cl_khr_image2d_from_buffer is not supported on the target platform");
+ ARM_COMPUTE_ERROR_ON_MSG(get_cl_image_pitch_alignment(CLKernelLibrary::get().get_device()) == 0,
+ "Impossible to retrieve the cl_image pitch alignment");
+ ARM_COMPUTE_ERROR_ON_MSG(buffer.get() == nullptr,
+ "Cannot create cl_image from empty cl_buffer");
+
cl_channel_type cl_data_type;
switch(data_type)
@@ -61,7 +93,7 @@ cl::Image2D create_image2d_from_buffer(const cl::Context &ctx, const cl::Buffer
desc.image_width = shape2d[0];
desc.image_height = shape2d[1];
- switch(type)
+ switch(image_type)
{
case CLImage2DType::ReadOnly:
cl_image = clCreateImage(ctx(), CL_MEM_READ_ONLY, &format, &desc, nullptr, &err);