137 lines
4.4 KiB
C++
137 lines
4.4 KiB
C++
/*
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* Copyright (c) 2016 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <math.h>
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#include "test/clear_system_state.h"
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#include "test/register_state_check.h"
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#include "third_party/googletest/src/include/gtest/gtest.h"
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#include "./vpx_dsp_rtcd.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_dsp/postproc.h"
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#include "vpx_mem/vpx_mem.h"
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namespace {
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static const int kNoiseSize = 3072;
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// TODO(jimbankoski): make width and height integers not unsigned.
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typedef void (*AddNoiseFunc)(uint8_t *start, const int8_t *noise,
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int blackclamp, int whiteclamp, int width,
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int height, int pitch);
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class AddNoiseTest : public ::testing::TestWithParam<AddNoiseFunc> {
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public:
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virtual void TearDown() { libvpx_test::ClearSystemState(); }
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virtual ~AddNoiseTest() {}
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};
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double stddev6(char a, char b, char c, char d, char e, char f) {
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const double n = (a + b + c + d + e + f) / 6.0;
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const double v = ((a - n) * (a - n) + (b - n) * (b - n) + (c - n) * (c - n) +
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(d - n) * (d - n) + (e - n) * (e - n) + (f - n) * (f - n)) /
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6.0;
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return sqrt(v);
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}
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TEST_P(AddNoiseTest, CheckNoiseAdded) {
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const int width = 64;
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const int height = 64;
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const int image_size = width * height;
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int8_t noise[kNoiseSize];
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const int clamp = vpx_setup_noise(4.4, noise, kNoiseSize);
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uint8_t *const s =
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reinterpret_cast<uint8_t *>(vpx_calloc(image_size, sizeof(*s)));
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ASSERT_TRUE(s != NULL);
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memset(s, 99, image_size * sizeof(*s));
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ASM_REGISTER_STATE_CHECK(
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GetParam()(s, noise, clamp, clamp, width, height, width));
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// Check to make sure we don't end up having either the same or no added
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// noise either vertically or horizontally.
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for (int i = 0; i < image_size - 6 * width - 6; ++i) {
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const double hd = stddev6(s[i] - 99, s[i + 1] - 99, s[i + 2] - 99,
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s[i + 3] - 99, s[i + 4] - 99, s[i + 5] - 99);
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const double vd = stddev6(s[i] - 99, s[i + width] - 99,
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s[i + 2 * width] - 99, s[i + 3 * width] - 99,
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s[i + 4 * width] - 99, s[i + 5 * width] - 99);
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EXPECT_NE(hd, 0);
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EXPECT_NE(vd, 0);
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}
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// Initialize pixels in the image to 255 and check for roll over.
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memset(s, 255, image_size);
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ASM_REGISTER_STATE_CHECK(
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GetParam()(s, noise, clamp, clamp, width, height, width));
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// Check to make sure don't roll over.
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for (int i = 0; i < image_size; ++i) {
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EXPECT_GT(static_cast<int>(s[i]), clamp) << "i = " << i;
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}
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// Initialize pixels in the image to 0 and check for roll under.
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memset(s, 0, image_size);
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ASM_REGISTER_STATE_CHECK(
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GetParam()(s, noise, clamp, clamp, width, height, width));
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// Check to make sure don't roll under.
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for (int i = 0; i < image_size; ++i) {
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EXPECT_LT(static_cast<int>(s[i]), 255 - clamp) << "i = " << i;
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}
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vpx_free(s);
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}
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TEST_P(AddNoiseTest, CheckCvsAssembly) {
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const int width = 64;
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const int height = 64;
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const int image_size = width * height;
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int8_t noise[kNoiseSize];
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const int clamp = vpx_setup_noise(4.4, noise, kNoiseSize);
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uint8_t *const s = reinterpret_cast<uint8_t *>(vpx_calloc(image_size, 1));
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uint8_t *const d = reinterpret_cast<uint8_t *>(vpx_calloc(image_size, 1));
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ASSERT_TRUE(s != NULL);
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ASSERT_TRUE(d != NULL);
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memset(s, 99, image_size);
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memset(d, 99, image_size);
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srand(0);
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ASM_REGISTER_STATE_CHECK(
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GetParam()(s, noise, clamp, clamp, width, height, width));
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srand(0);
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ASM_REGISTER_STATE_CHECK(
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vpx_plane_add_noise_c(d, noise, clamp, clamp, width, height, width));
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for (int i = 0; i < image_size; ++i) {
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EXPECT_EQ(static_cast<int>(s[i]), static_cast<int>(d[i])) << "i = " << i;
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}
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vpx_free(d);
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vpx_free(s);
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}
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INSTANTIATE_TEST_CASE_P(C, AddNoiseTest,
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::testing::Values(vpx_plane_add_noise_c));
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#if HAVE_SSE2
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INSTANTIATE_TEST_CASE_P(SSE2, AddNoiseTest,
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::testing::Values(vpx_plane_add_noise_sse2));
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#endif
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#if HAVE_MSA
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INSTANTIATE_TEST_CASE_P(MSA, AddNoiseTest,
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::testing::Values(vpx_plane_add_noise_msa));
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#endif
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} // namespace
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