Added initial version of C API with just one routine

1 files changed, 96 insertions, 0 deletions

diff --git a/src/clblast_c.cc b/src/clblast_c.cc
new file mode 100644
index 00000000..74a74971
--- /dev/null
+++ b/src/clblast_c.cc
@@ -0,0 +1,96 @@
+
+// =================================================================================================
+// This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. This
+// project loosely follows the Google C++ styleguide and uses a tab-size of two spaces and a max-
+// width of 100 characters per line.
+//
+// Author(s):
+//   Cedric Nugteren <www.cedricnugteren.nl>
+//
+// This file implements all the plain C BLAS API calls. This forwards the calls to the C++ API.
+//
+// =================================================================================================
+
+#include <string>
+
+extern "C" {
+  #include "clblast_c.h"
+}
+#include "clblast.h"
+#include "internal/utilities.h"
+
+// =================================================================================================
+// BLAS level-1 (vector-vector) routines
+// =================================================================================================
+
+// =================================================================================================
+// BLAS level-2 (matrix-vector) routines
+// =================================================================================================
+
+// =================================================================================================
+// BLAS level-3 (matrix-matrix) routines
+// =================================================================================================
+
+// GEMM
+StatusCode CLBlastSgemm(const Layout layout, const Transpose a_transpose, const Transpose b_transpose,
+                        const size_t m, const size_t n, const size_t k, const float alpha,
+                        const cl_mem a_buffer, const size_t a_offset, const size_t a_ld,
+                        const cl_mem b_buffer, const size_t b_offset, const size_t b_ld, const float beta,
+                        cl_mem c_buffer, const size_t c_offset, const size_t c_ld,
+                        cl_command_queue* queue, cl_event* event) {
+  auto status = clblast::Gemm(static_cast<clblast::Layout>(layout),
+                              static_cast<clblast::Transpose>(a_transpose),
+                              static_cast<clblast::Transpose>(b_transpose),
+                              m, n, k, alpha,
+                              a_buffer, a_offset, a_ld, b_buffer, b_offset, b_ld, beta,
+                              c_buffer, c_offset, c_ld, queue, event);
+  return static_cast<StatusCode>(status);
+}
+StatusCode CLBlastDgemm(const Layout layout, const Transpose a_transpose, const Transpose b_transpose,
+                        const size_t m, const size_t n, const size_t k, const double alpha,
+                        const cl_mem a_buffer, const size_t a_offset, const size_t a_ld,
+                        const cl_mem b_buffer, const size_t b_offset, const size_t b_ld, const double beta,
+                        cl_mem c_buffer, const size_t c_offset, const size_t c_ld,
+                        cl_command_queue* queue, cl_event* event) {
+  auto status = clblast::Gemm(static_cast<clblast::Layout>(layout),
+                              static_cast<clblast::Transpose>(a_transpose),
+                              static_cast<clblast::Transpose>(b_transpose),
+                              m, n, k, alpha,
+                              a_buffer, a_offset, a_ld, b_buffer, b_offset, b_ld, beta,
+                              c_buffer, c_offset, c_ld, queue, event);
+  return static_cast<StatusCode>(status);
+}
+StatusCode CLBlastCgemm(const Layout layout, const Transpose a_transpose, const Transpose b_transpose,
+                        const size_t m, const size_t n, const size_t k, const cl_float2 alpha,
+                        const cl_mem a_buffer, const size_t a_offset, const size_t a_ld,
+                        const cl_mem b_buffer, const size_t b_offset, const size_t b_ld, const cl_float2 beta,
+                        cl_mem c_buffer, const size_t c_offset, const size_t c_ld,
+                        cl_command_queue* queue, cl_event* event) {
+  auto cl_alpha = clblast::float2{alpha.s[0], alpha.s[1]};
+  auto cl_beta = clblast::float2{beta.s[0], beta.s[1]};
+  auto status = clblast::Gemm(static_cast<clblast::Layout>(layout),
+                              static_cast<clblast::Transpose>(a_transpose),
+                              static_cast<clblast::Transpose>(b_transpose),
+                              m, n, k, cl_alpha,
+                              a_buffer, a_offset, a_ld, b_buffer, b_offset, b_ld, cl_beta,
+                              c_buffer, c_offset, c_ld, queue, event);
+  return static_cast<StatusCode>(status);
+}
+StatusCode CLBlastZgemm(const Layout layout, const Transpose a_transpose, const Transpose b_transpose,
+                        const size_t m, const size_t n, const size_t k, const cl_double2 alpha,
+                        const cl_mem a_buffer, const size_t a_offset, const size_t a_ld,
+                        const cl_mem b_buffer, const size_t b_offset, const size_t b_ld, const cl_double2 beta,
+                        cl_mem c_buffer, const size_t c_offset, const size_t c_ld,
+                        cl_command_queue* queue, cl_event* event) {
+  auto cl_alpha = clblast::double2{alpha.s[0], alpha.s[1]};
+  auto cl_beta = clblast::double2{beta.s[0], beta.s[1]};
+  auto status = clblast::Gemm(static_cast<clblast::Layout>(layout),
+                              static_cast<clblast::Transpose>(a_transpose),
+                              static_cast<clblast::Transpose>(b_transpose),
+                              m, n, k, cl_alpha,
+                              a_buffer, a_offset, a_ld, b_buffer, b_offset, b_ld, cl_beta,
+                              c_buffer, c_offset, c_ld, queue, event);
+  return static_cast<StatusCode>(status);
+}
+
+// =================================================================================================