ref: 5de798f2b26fce3e82f0c28219fe13c3cf88dde7
dir: /test/pp_filter_test.cc/
/*
* 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 <limits.h>
#include "./vpx_config.h"
#include "./vpx_dsp_rtcd.h"
#include "test/acm_random.h"
#include "test/clear_system_state.h"
#include "test/register_state_check.h"
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "vpx/vpx_integer.h"
#include "vpx_mem/vpx_mem.h"
using libvpx_test::ACMRandom;
typedef void (*VpxPostProcDownAndAcrossMbRowFunc)(
unsigned char *src_ptr, unsigned char *dst_ptr, int src_pixels_per_line,
int dst_pixels_per_line, int cols, unsigned char *flimit, int size);
typedef void (*VpxMbPostProcAcrossIpFunc)(unsigned char *src, int pitch,
int rows, int cols, int flimit);
typedef void (*VpxMbPostProcDownFunc)(unsigned char *dst, int pitch, int rows,
int cols, int flimit);
namespace {
// Compute the filter level used in post proc from the loop filter strength
int q2mbl(int x) {
if (x < 20) x = 20;
x = 50 + (x - 50) * 10 / 8;
return x * x / 3;
}
class VpxPostProcDownAndAcrossMbRowTest
: public ::testing::TestWithParam<VpxPostProcDownAndAcrossMbRowFunc> {
public:
virtual void TearDown() { libvpx_test::ClearSystemState(); }
};
// Test routine for the VPx post-processing function
// vpx_post_proc_down_and_across_mb_row_c.
TEST_P(VpxPostProcDownAndAcrossMbRowTest, CheckFilterOutput) {
// Size of the underlying data block that will be filtered.
const int block_width = 16;
const int block_height = 16;
// 5-tap filter needs 2 padding rows above and below the block in the input.
const int input_width = block_width;
const int input_height = block_height + 4;
const int input_stride = input_width;
const int input_size = input_width * input_height;
// Filter extends output block by 8 samples at left and right edges.
const int output_width = block_width + 16;
const int output_height = block_height;
const int output_stride = output_width;
const int output_size = output_width * output_height;
uint8_t *const src_image = new uint8_t[input_size];
ASSERT_TRUE(src_image != NULL);
// Though the left padding is only 8 bytes, the assembly code tries to
// read 16 bytes before the pointer.
uint8_t *const dst_image = new uint8_t[output_size + 8];
ASSERT_TRUE(dst_image != NULL);
// Pointers to top-left pixel of block in the input and output images.
uint8_t *const src_image_ptr = src_image + (input_stride << 1);
// The assembly works in increments of 16. The first read may be offset by
// this amount.
uint8_t *const dst_image_ptr = dst_image + 16;
uint8_t *const flimits =
reinterpret_cast<uint8_t *>(vpx_memalign(16, block_width));
(void)memset(flimits, 255, block_width);
// Initialize pixels in the input:
// block pixels to value 1,
// border pixels to value 10.
(void)memset(src_image, 10, input_size);
uint8_t *pixel_ptr = src_image_ptr;
for (int i = 0; i < block_height; ++i) {
for (int j = 0; j < block_width; ++j) {
pixel_ptr[j] = 1;
}
pixel_ptr += input_stride;
}
// Initialize pixels in the output to 99.
(void)memset(dst_image, 99, output_size);
ASM_REGISTER_STATE_CHECK(GetParam()(src_image_ptr, dst_image_ptr,
input_stride, output_stride, block_width,
flimits, 16));
static const uint8_t kExpectedOutput[block_height] = {
4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 4
};
pixel_ptr = dst_image_ptr;
for (int i = 0; i < block_height; ++i) {
for (int j = 0; j < block_width; ++j) {
ASSERT_EQ(kExpectedOutput[i], pixel_ptr[j]) << "at (" << i << ", " << j
<< ")";
}
pixel_ptr += output_stride;
}
delete[] src_image;
delete[] dst_image;
vpx_free(flimits);
};
class VpxMbPostProcAcrossIpTest
: public ::testing::TestWithParam<VpxMbPostProcAcrossIpFunc> {
public:
virtual void TearDown() { libvpx_test::ClearSystemState(); }
protected:
void SetCols(unsigned char *s, int rows, int cols, int src_width) {
for (int r = 0; r < rows; r++) {
for (int c = 0; c < cols; c++) {
s[c] = c;
}
s += src_width;
}
}
void RunComparison(const unsigned char *expected_output, unsigned char *src_c,
int rows, int cols, int src_pitch) {
for (int r = 0; r < rows; r++) {
for (int c = 0; c < cols; c++) {
ASSERT_EQ(expected_output[c], src_c[c]) << "at (" << r << ", " << c
<< ")";
}
src_c += src_pitch;
}
}
void RunFilterLevel(unsigned char *s, int rows, int cols, int src_width,
int filter_level, const unsigned char *expected_output) {
ASM_REGISTER_STATE_CHECK(
GetParam()(s, src_width, rows, cols, filter_level));
RunComparison(expected_output, s, rows, cols, src_width);
}
};
TEST_P(VpxMbPostProcAcrossIpTest, CheckLowFilterOutput) {
const int rows = 16;
const int cols = 16;
const int src_left_padding = 8;
const int src_right_padding = 17;
const int src_width = cols + src_left_padding + src_right_padding;
const int src_size = rows * src_width;
unsigned char *const src = new unsigned char[src_size];
ASSERT_TRUE(src != NULL);
memset(src, 10, src_size);
unsigned char *const s = src + src_left_padding;
SetCols(s, rows, cols, src_width);
unsigned char *expected_output = new unsigned char[rows * cols];
ASSERT_TRUE(expected_output != NULL);
SetCols(expected_output, rows, cols, cols);
RunFilterLevel(s, rows, cols, src_width, q2mbl(0), expected_output);
delete[] src;
delete[] expected_output;
}
TEST_P(VpxMbPostProcAcrossIpTest, CheckMediumFilterOutput) {
const int rows = 16;
const int cols = 16;
const int src_left_padding = 8;
const int src_right_padding = 17;
const int src_width = cols + src_left_padding + src_right_padding;
const int src_size = rows * src_width;
unsigned char *const src = new unsigned char[src_size];
ASSERT_TRUE(src != NULL);
memset(src, 10, src_size);
unsigned char *const s = src + src_left_padding;
SetCols(s, rows, cols, src_width);
static const unsigned char kExpectedOutput[cols] = {
2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 13
};
RunFilterLevel(s, rows, cols, src_width, q2mbl(70), kExpectedOutput);
delete[] src;
}
TEST_P(VpxMbPostProcAcrossIpTest, CheckHighFilterOutput) {
const int rows = 16;
const int cols = 16;
const int src_left_padding = 8;
const int src_right_padding = 17;
const int src_width = cols + src_left_padding + src_right_padding;
const int src_size = rows * src_width;
unsigned char *const src = new unsigned char[src_size];
ASSERT_TRUE(src != NULL);
unsigned char *const s = src + src_left_padding;
memset(src, 10, src_size);
SetCols(s, rows, cols, src_width);
static const unsigned char kExpectedOutput[cols] = {
2, 2, 3, 4, 4, 5, 6, 7, 8, 9, 10, 11, 11, 12, 13, 13
};
RunFilterLevel(s, rows, cols, src_width, INT_MAX, kExpectedOutput);
memset(src, 10, src_size);
SetCols(s, rows, cols, src_width);
RunFilterLevel(s, rows, cols, src_width, q2mbl(100), kExpectedOutput);
delete[] src;
}
TEST_P(VpxMbPostProcAcrossIpTest, CheckCvsAssembly) {
const int rows = 16;
const int cols = 16;
const int src_left_padding = 8;
const int src_right_padding = 17;
const int src_width = cols + src_left_padding + src_right_padding;
const int src_size = rows * src_width;
unsigned char *const c_mem = new unsigned char[src_size];
unsigned char *const asm_mem = new unsigned char[src_size];
ASSERT_TRUE(c_mem != NULL);
ASSERT_TRUE(asm_mem != NULL);
unsigned char *const src_c = c_mem + src_left_padding;
unsigned char *const src_asm = asm_mem + src_left_padding;
// When level >= 100, the filter behaves the same as the level = INT_MAX
// When level < 20, it behaves the same as the level = 0
for (int level = 0; level < 100; level++) {
memset(c_mem, 10, src_size);
memset(asm_mem, 10, src_size);
SetCols(src_c, rows, cols, src_width);
SetCols(src_asm, rows, cols, src_width);
vpx_mbpost_proc_across_ip_c(src_c, src_width, rows, cols, q2mbl(level));
ASM_REGISTER_STATE_CHECK(
GetParam()(src_asm, src_width, rows, cols, q2mbl(level)));
RunComparison(src_c, src_asm, rows, cols, src_width);
}
delete[] c_mem;
delete[] asm_mem;
}
class VpxMbPostProcDownTest
: public ::testing::TestWithParam<VpxMbPostProcDownFunc> {
public:
virtual void TearDown() { libvpx_test::ClearSystemState(); }
protected:
void SetRows(unsigned char *src_c, int rows, int cols) {
for (int r = 0; r < rows; r++) {
memset(src_c, r, cols);
src_c += cols;
}
}
void SetRandom(unsigned char *src_c, unsigned char *src_asm, int rows,
int cols, int src_pitch) {
ACMRandom rnd;
rnd.Reset(ACMRandom::DeterministicSeed());
// Add some random noise to the input
for (int r = 0; r < rows; r++) {
for (int c = 0; c < cols; c++) {
const int noise = rnd(4);
src_c[c] = r + noise;
src_asm[c] = r + noise;
}
src_c += src_pitch;
src_asm += src_pitch;
}
}
void SetRandomSaturation(unsigned char *src_c, unsigned char *src_asm,
int rows, int cols, int src_pitch) {
ACMRandom rnd;
rnd.Reset(ACMRandom::DeterministicSeed());
// Add some random noise to the input
for (int r = 0; r < rows; r++) {
for (int c = 0; c < cols; c++) {
const int noise = 3 * rnd(2);
src_c[c] = r + noise;
src_asm[c] = r + noise;
}
src_c += src_pitch;
src_asm += src_pitch;
}
}
void RunComparison(const unsigned char *expected_output, unsigned char *src_c,
int rows, int cols, int src_pitch) {
for (int r = 0; r < rows; r++) {
for (int c = 0; c < cols; c++) {
ASSERT_EQ(expected_output[r * rows + c], src_c[c]) << "at (" << r
<< ", " << c << ")";
}
src_c += src_pitch;
}
}
void RunComparison(unsigned char *src_c, unsigned char *src_asm, int rows,
int cols, int src_pitch) {
for (int r = 0; r < rows; r++) {
for (int c = 0; c < cols; c++) {
ASSERT_EQ(src_c[c], src_asm[c]) << "at (" << r << ", " << c << ")";
}
src_c += src_pitch;
src_asm += src_pitch;
}
}
void RunFilterLevel(unsigned char *s, int rows, int cols, int src_width,
int filter_level, const unsigned char *expected_output) {
ASM_REGISTER_STATE_CHECK(
GetParam()(s, src_width, rows, cols, filter_level));
RunComparison(expected_output, s, rows, cols, src_width);
}
};
TEST_P(VpxMbPostProcDownTest, CheckHighFilterOutput) {
const int rows = 16;
const int cols = 16;
const int src_pitch = cols;
const int src_top_padding = 8;
const int src_bottom_padding = 17;
const int src_size = cols * (rows + src_top_padding + src_bottom_padding);
unsigned char *const c_mem = new unsigned char[src_size];
ASSERT_TRUE(c_mem != NULL);
memset(c_mem, 10, src_size);
unsigned char *const src_c = c_mem + src_top_padding * src_pitch;
SetRows(src_c, rows, cols);
static const unsigned char kExpectedOutput[rows * cols] = {
2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2,
2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 3, 4, 4, 3, 3, 3,
4, 4, 3, 4, 4, 3, 3, 4, 5, 4, 4, 4, 4, 4, 4, 4, 5, 4, 4,
4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 8, 9, 9, 8, 8, 8, 9,
9, 8, 9, 9, 8, 8, 8, 9, 9, 10, 10, 9, 9, 9, 10, 10, 9, 10, 10,
9, 9, 9, 10, 10, 10, 11, 10, 10, 10, 11, 10, 11, 10, 11, 10, 10, 10, 11,
10, 11, 11, 11, 11, 11, 11, 11, 12, 11, 11, 11, 11, 11, 11, 11, 12, 11, 12,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 12,
13, 12, 13, 12, 12, 12, 13, 12, 13, 12, 13, 12, 13, 13, 13, 14, 13, 13, 13,
13, 13, 13, 13, 14, 13, 13, 13, 13
};
RunFilterLevel(src_c, rows, cols, src_pitch, INT_MAX, kExpectedOutput);
memset(c_mem, 10, src_size);
SetRows(src_c, rows, cols);
RunFilterLevel(src_c, rows, cols, src_pitch, q2mbl(100), kExpectedOutput);
delete[] c_mem;
}
TEST_P(VpxMbPostProcDownTest, CheckMediumFilterOutput) {
const int rows = 16;
const int cols = 16;
const int src_pitch = cols;
const int src_top_padding = 8;
const int src_bottom_padding = 17;
const int src_size = cols * (rows + src_top_padding + src_bottom_padding);
unsigned char *const c_mem = new unsigned char[src_size];
ASSERT_TRUE(c_mem != NULL);
memset(c_mem, 10, src_size);
unsigned char *const src_c = c_mem + src_top_padding * src_pitch;
SetRows(src_c, rows, cols);
static const unsigned char kExpectedOutput[rows * cols] = {
2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2,
2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 13, 12,
13, 12, 13, 12, 12, 12, 13, 12, 13, 12, 13, 12, 13, 13, 13, 14, 13, 13, 13,
13, 13, 13, 13, 14, 13, 13, 13, 13
};
RunFilterLevel(src_c, rows, cols, src_pitch, q2mbl(70), kExpectedOutput);
delete[] c_mem;
}
TEST_P(VpxMbPostProcDownTest, CheckLowFilterOutput) {
const int rows = 16;
const int cols = 16;
const int src_pitch = cols;
const int src_top_padding = 8;
const int src_bottom_padding = 17;
const int src_size = cols * (rows + src_top_padding + src_bottom_padding);
unsigned char *const c_mem = new unsigned char[src_size];
ASSERT_TRUE(c_mem != NULL);
memset(c_mem, 10, src_size);
unsigned char *const src_c = c_mem + src_top_padding * src_pitch;
SetRows(src_c, rows, cols);
unsigned char *expected_output = new unsigned char[rows * cols];
ASSERT_TRUE(expected_output != NULL);
SetRows(expected_output, rows, cols);
RunFilterLevel(src_c, rows, cols, src_pitch, q2mbl(0), expected_output);
delete[] c_mem;
delete[] expected_output;
}
TEST_P(VpxMbPostProcDownTest, CheckCvsAssembly) {
const int rows = 16;
const int cols = 16;
const int src_pitch = cols;
const int src_top_padding = 8;
const int src_bottom_padding = 17;
const int src_size = cols * (rows + src_top_padding + src_bottom_padding);
unsigned char *const c_mem = new unsigned char[src_size];
unsigned char *const asm_mem = new unsigned char[src_size];
ASSERT_TRUE(c_mem != NULL);
ASSERT_TRUE(asm_mem != NULL);
unsigned char *const src_c = c_mem + src_top_padding * src_pitch;
unsigned char *const src_asm = asm_mem + src_top_padding * src_pitch;
for (int level = 0; level < 100; level++) {
memset(c_mem, 10, src_size);
memset(asm_mem, 10, src_size);
SetRandom(src_c, src_asm, rows, cols, src_pitch);
vpx_mbpost_proc_down_c(src_c, src_pitch, rows, cols, q2mbl(level));
ASM_REGISTER_STATE_CHECK(
GetParam()(src_asm, src_pitch, rows, cols, q2mbl(level)));
RunComparison(src_c, src_asm, rows, cols, src_pitch);
memset(c_mem, 10, src_size);
memset(asm_mem, 10, src_size);
SetRandomSaturation(src_c, src_asm, rows, cols, src_pitch);
vpx_mbpost_proc_down_c(src_c, src_pitch, rows, cols, q2mbl(level));
ASM_REGISTER_STATE_CHECK(
GetParam()(src_asm, src_pitch, rows, cols, q2mbl(level)));
RunComparison(src_c, src_asm, rows, cols, src_pitch);
}
delete[] c_mem;
delete[] asm_mem;
}
INSTANTIATE_TEST_CASE_P(
C, VpxPostProcDownAndAcrossMbRowTest,
::testing::Values(vpx_post_proc_down_and_across_mb_row_c));
INSTANTIATE_TEST_CASE_P(C, VpxMbPostProcAcrossIpTest,
::testing::Values(vpx_mbpost_proc_across_ip_c));
INSTANTIATE_TEST_CASE_P(C, VpxMbPostProcDownTest,
::testing::Values(vpx_mbpost_proc_down_c));
#if HAVE_SSE2
INSTANTIATE_TEST_CASE_P(
SSE2, VpxPostProcDownAndAcrossMbRowTest,
::testing::Values(vpx_post_proc_down_and_across_mb_row_sse2));
INSTANTIATE_TEST_CASE_P(SSE2, VpxMbPostProcAcrossIpTest,
::testing::Values(vpx_mbpost_proc_across_ip_sse2));
INSTANTIATE_TEST_CASE_P(SSE2, VpxMbPostProcDownTest,
::testing::Values(vpx_mbpost_proc_down_sse2));
#endif
#if HAVE_MSA
INSTANTIATE_TEST_CASE_P(
MSA, VpxPostProcDownAndAcrossMbRowTest,
::testing::Values(vpx_post_proc_down_and_across_mb_row_msa));
INSTANTIATE_TEST_CASE_P(MSA, VpxMbPostProcAcrossIpTest,
::testing::Values(vpx_mbpost_proc_across_ip_msa));
INSTANTIATE_TEST_CASE_P(MSA, VpxMbPostProcDownTest,
::testing::Values(vpx_mbpost_proc_down_msa));
#endif
} // namespace