/* * Copyright (c) 2017 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include "third_party/googletest/src/include/gtest/gtest.h" #include "./vpx_dsp_rtcd.h" #include "test/acm_random.h" #include "test/buffer.h" #include "test/register_state_check.h" #include "vpx_ports/mem.h" #include "vpx_ports/vpx_timer.h" namespace { using ::libvpx_test::ACMRandom; using ::libvpx_test::Buffer; typedef void (*AvgPredFunc)(uint8_t *a, const uint8_t *b, int w, int h, const uint8_t *c, int c_stride); uint8_t avg_with_rounding(uint8_t a, uint8_t b) { return (a + b + 1) >> 1; } void reference_pred(const uint8_t *pred, const Buffer &ref, int width, int height, uint8_t *avg) { for (int y = 0; y < height; ++y) { for (int x = 0; x < width; ++x) { avg[y * width + x] = avg_with_rounding( pred[y * width + x], ref.TopLeftPixel()[y * ref.stride() + x]); } } } class AvgPredTest : public ::testing::TestWithParam { public: virtual void SetUp() { avg_pred_func_ = GetParam(); rnd_.Reset(ACMRandom::DeterministicSeed()); } protected: AvgPredFunc avg_pred_func_; ACMRandom rnd_; }; void fill(ACMRandom *r, uint8_t *a, const int width, const int height) { for (int y = 0; y < height; ++y) { for (int x = 0; x < width; ++x) { a[x + width * y] = r->Rand8(); } } } TEST_P(AvgPredTest, SizeCombinations) { // This is called as part of the sub pixel variance. As such it must be one of // the variance block sizes. DECLARE_ALIGNED(16, uint8_t, pred[64 * 64]); DECLARE_ALIGNED(16, uint8_t, avg_ref[64 * 64]); DECLARE_ALIGNED(16, uint8_t, avg_chk[64 * 64]); for (int width_pow = 2; width_pow <= 6; ++width_pow) { for (int height_pow = width_pow - 1; height_pow <= width_pow + 1; ++height_pow) { // Don't test 4x2 or 64x128 if (height_pow == 1 || height_pow == 7) continue; // The sse2 special-cases when ref width == stride, so make sure to test // it. for (int ref_padding = 0; ref_padding < 2; ref_padding++) { const int width = 1 << width_pow; const int height = 1 << height_pow; // Only the reference buffer may have a stride not equal to width. Buffer ref = Buffer(width, height, ref_padding ? 8 : 0); fill(&rnd_, pred, width, height); ref.Set(&rnd_, &ACMRandom::Rand8); reference_pred(pred, ref, width, height, avg_ref); ASM_REGISTER_STATE_CHECK(avg_pred_func_( avg_chk, pred, width, height, ref.TopLeftPixel(), ref.stride())); ASSERT_EQ(memcmp(avg_ref, avg_chk, sizeof(*avg_ref) * width * height), 0); } } } } TEST_P(AvgPredTest, CompareReferenceRandom) { const int width = 64; const int height = 32; Buffer ref = Buffer(width, height, 8); DECLARE_ALIGNED(16, uint8_t, pred[width * height]); DECLARE_ALIGNED(16, uint8_t, avg_ref[width * height]); DECLARE_ALIGNED(16, uint8_t, avg_chk[width * height]); for (int i = 0; i < 500; ++i) { fill(&rnd_, pred, width, height); ref.Set(&rnd_, &ACMRandom::Rand8); reference_pred(pred, ref, width, height, avg_ref); ASM_REGISTER_STATE_CHECK(avg_pred_func_(avg_chk, pred, width, height, ref.TopLeftPixel(), ref.stride())); ASSERT_EQ(memcmp(avg_ref, avg_chk, sizeof(*avg_ref) * width * height), 0); } } TEST_P(AvgPredTest, DISABLED_Speed) { DECLARE_ALIGNED(16, uint8_t, pred[64 * 64]); DECLARE_ALIGNED(16, uint8_t, avg[64 * 64]); for (int width_pow = 2; width_pow <= 6; ++width_pow) { for (int height_pow = width_pow - 1; height_pow <= width_pow + 1; ++height_pow) { // Don't test 4x2 or 64x128 if (height_pow == 1 || height_pow == 7) continue; for (int ref_padding = 0; ref_padding < 2; ref_padding++) { const int width = 1 << width_pow; const int height = 1 << height_pow; Buffer ref = Buffer(width, height, ref_padding ? 8 : 0); fill(&rnd_, pred, width, height); ref.Set(&rnd_, &ACMRandom::Rand8); vpx_usec_timer timer; vpx_usec_timer_start(&timer); for (int i = 0; i < 10000000 / (width * height); ++i) { avg_pred_func_(avg, pred, width, height, ref.TopLeftPixel(), ref.stride()); } vpx_usec_timer_mark(&timer); const int elapsed_time = static_cast(vpx_usec_timer_elapsed(&timer)); printf("Average Test (ref_padding: %d) %dx%d time: %5d us\n", ref_padding, width, height, elapsed_time); } } } } INSTANTIATE_TEST_CASE_P(C, AvgPredTest, ::testing::Values(&vpx_comp_avg_pred_c)); #if HAVE_SSE2 INSTANTIATE_TEST_CASE_P(SSE2, AvgPredTest, ::testing::Values(&vpx_comp_avg_pred_sse2)); #endif // HAVE_SSE2 } // namespace