Commit 96f70665 authored by Scott LaVarnway's avatar Scott LaVarnway

Added unit test for subtract functions

Patch Set 1: gain familiarity with unit tests... added simple
4x4 subtract test
Patch Set 2: fixed mistakes, parameterized as suggested
Patch Set 3: randomized the source/predictor data


Change-Id: I33432bdf7c9f2a9b8c2533a37106382c2a8209ee
Signed-off-by: default avatarScott LaVarnway <slavarnway@google.com>
parent 37309630
/*
* Copyright (c) 2012 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 "test/acm_random.h"
extern "C" {
#include "vpx_config.h"
#include "vpx_rtcd.h"
#include "vp8/common/blockd.h"
#include "vp8/encoder/block.h"
#include "vpx_mem/vpx_mem.h"
}
typedef void (*subtract_b_fn_t)(BLOCK *be, BLOCKD *bd, int pitch);
namespace {
class SubtractBlockTest : public ::testing::TestWithParam<subtract_b_fn_t> {};
using libvpx_test::ACMRandom;
TEST_P(SubtractBlockTest, SimpleSubtract) {
ACMRandom rnd(ACMRandom::DeterministicSeed());
BLOCK be;
BLOCKD bd;
// in libvpx, this stride is always 16
const int kDiffPredStride = 16;
const int kSrcStride[] = {32, 16, 8, 4, 0};
const int kBlockWidth = 4;
const int kBlockHeight = 4;
// Allocate... align to 16 for mmx/sse tests
uint8_t *source = reinterpret_cast<uint8_t*>(
vpx_memalign(16, kBlockHeight * kSrcStride[0] * sizeof(*source)));
be.src_diff = reinterpret_cast<int16_t*>(
vpx_memalign(16, kBlockHeight * kDiffPredStride * sizeof(*be.src_diff)));
bd.predictor = reinterpret_cast<unsigned char*>(
vpx_memalign(16, kBlockHeight * kDiffPredStride * sizeof(*bd.predictor)));
for(int i = 0; kSrcStride[i] > 0; ++i) {
// start at block0
be.src = 0;
be.base_src = &source;
be.src_stride = kSrcStride[i];
// set difference
int16_t *src_diff = be.src_diff;
for (int r = 0; r < kBlockHeight; ++r) {
for (int c = 0; c < kBlockWidth; ++c) {
src_diff[c] = 0xa5a5;
}
src_diff += kDiffPredStride;
}
// set destination
uint8_t *base_src = *be.base_src;
for (int r = 0; r < kBlockHeight; ++r) {
for (int c = 0; c < kBlockWidth; ++c) {
base_src[c] = rnd.Rand8();
}
base_src += be.src_stride;
}
// set predictor
uint8_t *predictor = bd.predictor;
for (int r = 0; r < kBlockHeight; ++r) {
for (int c = 0; c < kBlockWidth; ++c) {
predictor[c] = rnd.Rand8();
}
predictor += kDiffPredStride;
}
GetParam()(&be, &bd, kDiffPredStride);
base_src = *be.base_src;
src_diff = be.src_diff;
predictor = bd.predictor;
for (int r = 0; r < kBlockHeight; ++r) {
for (int c = 0; c < kBlockWidth; ++c) {
EXPECT_EQ(base_src[c], (src_diff[c] + predictor[c])) << "r = " << r
<< ", c = " << c;
}
src_diff += kDiffPredStride;
predictor += kDiffPredStride;
base_src += be.src_stride;
}
}
vpx_free(be.src_diff);
vpx_free(source);
vpx_free(bd.predictor);
}
INSTANTIATE_TEST_CASE_P(C, SubtractBlockTest,
::testing::Values(vp8_subtract_b_c));
#if HAVE_MMX
INSTANTIATE_TEST_CASE_P(MMX, SubtractBlockTest,
::testing::Values(vp8_subtract_b_mmx));
#endif
#if HAVE_SSE2
INSTANTIATE_TEST_CASE_P(SSE2, SubtractBlockTest,
::testing::Values(vp8_subtract_b_sse2));
#endif
} // namespace
......@@ -39,6 +39,7 @@ LIBVPX_TEST_SRCS-$(CONFIG_POSTPROC) += pp_filter_test.cc
LIBVPX_TEST_SRCS-yes += sad_test.cc
LIBVPX_TEST_SRCS-$(CONFIG_VP8_ENCODER) += set_roi.cc
LIBVPX_TEST_SRCS-yes += sixtap_predict_test.cc
LIBVPX_TEST_SRCS-$(CONFIG_VP8_ENCODER) += subtract_test.cc
endif
......
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