Add MatBSR<FPP,GPU2>::to_dense and its unit test.

Update to gpu_mod@19563928.

misc/test/src/C++/test_matbsr_gpu_mod.cpp.in

@@ -91,6 +91,26 @@ void test_gpu_mul_vec()
 	std::cout << "OK" << std::endl;
 }
 
+void test_bsr_to_dense()
+{
+	std::cout << "test_bsr_to_dense" << std::endl;
+	auto cpu_bmat = MatBSR<FPP, Cpu>::randMat(10, 15, 5, 5, 2);
+	MatBSR<FPP, GPU2> gpu_bmat(*cpu_bmat);
+	auto gpu_dsmat = gpu_bmat.to_dense();
+
+	MatDense<FPP, Cpu> cpu_dsmat_test;
+	gpu_dsmat.tocpu(cpu_dsmat_test);
+	auto cpu_dsmat_ref = cpu_bmat->to_dense();
+
+	MatDense<FPP, Cpu> cpu_dmat_test = cpu_dsmat_test;
+	MatDense<FPP, Cpu> cpu_dmat_ref = cpu_dsmat_ref;
+
+	MatDense<FPP, Cpu> diff = cpu_dmat_ref;
+	diff -= cpu_dmat_test;
+	assert(diff.norm() / cpu_dmat_ref.norm() < 1e-3);
+	std::cout << "OK" << std::endl;
+}
+
 void test_bsr_to_sparse()
 {
 	std::cout << "test_bsr_to_sparse" << std::endl;
@@ -346,6 +366,7 @@ int main()
 	test_gpu_mul_dense();
 	test_gpu_mul_vec();
 	test_bsr_to_sparse();
+	test_bsr_to_dense();
 	test_sparse_to_bsr();
 	test_transpose();
 	test_adjoint();

src/faust_linear_operator/GPU2/faust_MatBSR_gpu.cpp.in

@@ -135,6 +135,15 @@ namespace Faust
 			return spm;
 		}
 
+	template<>
+		MatDense<@FAUST_SCALAR_FOR_GM@, GPU2> MatBSR<@FAUST_SCALAR_FOR_GM@,GPU2>::to_dense() const
+		{
+			MatDense<@FAUST_SCALAR_FOR_GM@, GPU2> dsm;
+			auto bsr_funcs = GPUModHandler::get_singleton()->bsr_funcs((@FAUST_SCALAR_FOR_GM@)(0));
+			dsm.set_gpu_mat_ptr(bsr_funcs->bsr2dense(gpu_mat, OP_NOTRANSP));
+			return dsm;
+		}
+
 	template<>
 		void MatBSR<@FAUST_SCALAR_FOR_GM@, GPU2>::transpose()
 		{

src/faust_linear_operator/GPU2/faust_MatBSR_gpu.h

@@ -77,6 +77,7 @@ namespace Faust
 			void tocpu(int32_t* browptr, int32_t* bcolinds, FPP* bdata, int32_t* nrows=nullptr, int32_t* ncols=nullptr, int32_t *bnrows=nullptr, int32_t *bncol=nullptr, int32_t* bnnz=nullptr) const;
 			void tocpu(MatBSR<FPP, Cpu> &cpu_mat) const;
 			MatSparse<FPP, GPU2> to_sparse() const;
+			MatDense<FPP, GPU2> to_dense() const;
 
 		};
 }