COMPMID-3320: Add cl_image support for GEMMReshaped T_NT

COMPMID-3321: Add cl_image support for GEMMReshaped NT_T

- Added support for cl_image in CLGEMMMatrixMultiplyReshapedKernel (both
  NT and T kernels)
- Extended the tests for the validating rhs_info.export_to_cl_image =
  true
- Added utility macros in OpenCL to load data from a OpenCL image object
- Updated doxygen documentation in CLGEMMMatrixMultiplyReshapedKernel.h
- Updated doxygen documentation in CLGEMMReshapeRHSMatrixKernel.h

Change-Id: I953b10e4ef205d1b76dcbc366e5a91fd5a8e1d5c
Signed-off-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3329
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/src/core/CL/cl_kernels/helpers.h b/src/core/CL/cl_kernels/helpers.h
index c4cbf77e96..0cf726f7f2 100644
--- a/src/core/CL/cl_kernels/helpers.h
+++ b/src/core/CL/cl_kernels/helpers.h
@@ -194,6 +194,49 @@
 #define VLOAD_STR(size) vload##size
 #define VLOAD(size) VLOAD_STR(size)
 
+#define PIXEL_UNIT4 1
+#define PIXEL_UNIT8 2
+#define PIXEL_UNIT16 4
+
+/** Utility macro to convert a vector size in pixel unit.
+ *
+ * @name CONVERT_VECTOR_SIZE_TO_PIXEL_UNIT
+ *
+ * @param[in] vec_size Vector size. Only 4,8 and 16 is supported
+ *
+ * @return The pixel unit (number of pixels)
+ * @{
+ */
+#define CONVERT_VECTOR_SIZE_TO_PIXEL_UNIT_STR(vec_size) PIXEL_UNIT##vec_size
+#define CONVERT_VECTOR_SIZE_TO_PIXEL_UNIT(vec_size) CONVERT_VECTOR_SIZE_TO_PIXEL_UNIT_STR(vec_size)
+/** @} */ // end of group CONVERT_VECTOR_SIZE_TO_PIXEL_UNIT
+
+#define read_image2d_floatx1(img, x_coord, y_coord) (float4)(read_imagef(img, (int2)(x_coord, y_coord)));
+#define read_image2d_floatx2(img, x_coord, y_coord) (float8)(read_imagef(img, (int2)(x_coord, y_coord)), read_imagef(img, (int2)(x_coord + 1, y_coord)));
+#define read_image2d_floatx4(img, x_coord, y_coord) (float16)(read_imagef(img, (int2)(x_coord, y_coord)), read_imagef(img, (int2)(x_coord + 1, y_coord)), read_imagef(img, (int2)(x_coord + 2, y_coord)), read_imagef(img, (int2)(x_coord + 3, y_coord)));
+
+#if defined(ARM_COMPUTE_OPENCL_FP16_ENABLED) && defined(cl_khr_fp16)
+#define read_image2d_halfx1(img, x_coord, y_coord) (half4)(read_imageh(img, (int2)(x_coord, y_coord)));
+#define read_image2d_halfx2(img, x_coord, y_coord) (half8)(read_imageh(img, (int2)(x_coord, y_coord)), read_imageh(img, (int2)(x_coord + 1, y_coord)));
+#define read_image2d_halfx4(img, x_coord, y_coord) (half16)(read_imageh(img, (int2)(x_coord, y_coord)), read_imageh(img, (int2)(x_coord + 1, y_coord)), read_imageh(img, (int2)(x_coord + 2, y_coord)), read_imageh(img, (int2)(x_coord + 3, y_coord)));
+#endif // defined(ARM_COMPUTE_OPENCL_FP16_ENABLED) && defined(cl_khr_fp16)
+
+/** Utility macro to read a 2D OpenCL image object.
+ *
+ * @note Coordinates are not normalized
+ *
+ * @param[in] data_type Data type
+ * @param[in] n0        Number of pixel to read. Only 1,2 and 4 is supported
+ * @param[in] img       OpenCL image object
+ * @param[in] x_coord   The x coordinate for the top-left pixel
+ * @param[in] y_coord   The y coordinate for the top-left pixel
+ *
+ * @return Pixels from the 2D OpenCL image object
+ * @{
+ */
+#define READ_IMAGE2D_STR(data_type, n0, img, x_coord, y_coord) read_image2d_##data_type##x##n0(img, x_coord, y_coord)
+#define READ_IMAGE2D(data_type, n0, img, x_coord, y_coord) READ_IMAGE2D_STR(data_type, n0, img, x_coord, y_coord)
+
 #define VSTORE_STR(size) vstore##size
 #define VSTORE(size) VSTORE_STR(size)