Differential D12001 Diff 39829 source/blender/compositor/tests/COM_BufferRange_test.cc

Changeset View

Standalone View

source/blender/compositor/tests/COM_BufferRange_test.cc

This file was added.

				/*
				* This program is free software; you can redistribute it and/or
				* modify it under the terms of the GNU General Public License
				* as published by the Free Software Foundation; either version 2
				* of the License, or (at your option) any later version.
				*
				* This program is distributed in the hope that it will be useful,
				* but WITHOUT ANY WARRANTY; without even the implied warranty of
				* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
				* GNU General Public License for more details.
				*
				* You should have received a copy of the GNU General Public License
				* along with this program; if not, write to the Free Software Foundation,
				* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
				*
				* Copyright 2021, Blender Foundation.
				*/

				#include "testing/testing.h"

				#include "COM_BufferRange.h"

				namespace blender::compositor::tests {

				TEST(BufferRange, Constructor)
				{
				const int size = 5;
				BufferRange<float> range(nullptr, 1, size, 4);
				EXPECT_EQ(range.size(), size);
				}

				static void fill_buffer_with_indexes(float *buf, int buf_len)
				{
				for (int i = 0; i < buf_len; i++) {
				buf[i] = i;
				}
				}

				TEST(BufferRange, Subscript)
				{
				const int start = 2;
				const int size = 4;
				const int num_channels = 3;
				const int buf_len = (start + size) * num_channels;
				float buf[buf_len];

				BufferRange<float> range(buf, start, size, num_channels);

				fill_buffer_with_indexes(buf, buf_len);
				int buf_index = start * num_channels;
				for (int i = 0; i < size; i++) {
				const float *elem = range[i];
				for (int ch = 0; ch < num_channels; ch++) {
				EXPECT_NEAR(elem[ch], buf_index, FLT_EPSILON);
				buf_index++;
				}
				}
				EXPECT_EQ(buf_index, buf_len);
				}

				TEST(BufferRange, SingleElemBufferIteration)
				{
				const int start = 1;
				const int size = 3;
				const int num_channels = 4;
				float buf[num_channels];
				const int stride = 0;
				BufferRange<float> range(buf, start, size, stride);

				int elems_count = 0;
				for (float *elem : range) {
				EXPECT_EQ(elem, buf);
				elems_count++;
				}
				EXPECT_EQ(elems_count, 1);
				}

				TEST(BufferRange, FullBufferIteration)
				{
				const int start = 2;
				const int size = 5;
				const int num_channels = 4;
				const int buf_len = (start + size) * num_channels;
				float buf[buf_len];
				BufferRange<float> range(buf, start, size, num_channels);

				fill_buffer_with_indexes(buf, buf_len);
				int buf_index = start * num_channels;
				for (float *elem : range) {
				for (int ch = 0; ch < num_channels; ch++) {
				EXPECT_NEAR(elem[ch], buf_index, FLT_EPSILON);
				buf_index++;
				}
				}
				EXPECT_EQ(buf_index, buf_len);
				}

				} // namespace blender::compositor::tests