ref: 6b4ac9b2534a78fcd220ba89ef1da5e0eef30837
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/buffer.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;
using libvpx_test::Buffer;
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.
Buffer<uint8_t> src_image = Buffer<uint8_t>(block_width, block_height, 2);
ASSERT_TRUE(src_image.Init());
// Filter extends output block by 8 samples at left and right edges.
// Though the left padding is only 8 bytes, the assembly code tries to
// read 16 bytes before the pointer.
Buffer<uint8_t> dst_image =
Buffer<uint8_t>(block_width, block_height, 8, 16, 8, 8);
ASSERT_TRUE(dst_image.Init());
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.
src_image.SetPadding(10);
src_image.Set(1);
// Initialize pixels in the output to 99.
dst_image.Set(99);
ASM_REGISTER_STATE_CHECK(GetParam()(
src_image.TopLeftPixel(), dst_image.TopLeftPixel(), src_image.stride(),
dst_image.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
};
uint8_t *pixel_ptr = dst_image.TopLeftPixel();
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 += dst_image.stride();
}
vpx_free(flimits);
};
TEST_P(VpxPostProcDownAndAcrossMbRowTest, CheckCvsAssembly) {
// Size of the underlying data block that will be filtered.
// Y blocks are always a multiple of 16 wide and exactly 16 high. U and V
// blocks are always a multiple of 8 wide and exactly 8 high.
const int block_width = 136;
const int block_height = 16;
// 5-tap filter needs 2 padding rows above and below the block in the input.
// SSE2 reads in blocks of 16. Pad an extra 8 in case the width is not %16.
Buffer<uint8_t> src_image =
Buffer<uint8_t>(block_width, block_height, 2, 2, 10, 2);
ASSERT_TRUE(src_image.Init());
// Filter extends output block by 8 samples at left and right edges.
// Though the left padding is only 8 bytes, there is 'above' padding as well
// so when the assembly code tries to read 16 bytes before the pointer it is
// not a problem.
// SSE2 reads in blocks of 16. Pad an extra 8 in case the width is not %16.
Buffer<uint8_t> dst_image =
Buffer<uint8_t>(block_width, block_height, 8, 8, 16, 8);
ASSERT_TRUE(dst_image.Init());
Buffer<uint8_t> dst_image_ref = Buffer<uint8_t>(block_width, block_height, 8);
ASSERT_TRUE(dst_image_ref.Init());
// Filter values are set in blocks of 16 for Y and 8 for U/V. Each macroblock
// can have a different filter. SSE2 assembly reads flimits in blocks of 16 so
// it must be padded out.
const int flimits_width = block_width % 16 ? block_width + 8 : block_width;
uint8_t *const flimits =
reinterpret_cast<uint8_t *>(vpx_memalign(16, flimits_width));
ACMRandom rnd;
rnd.Reset(ACMRandom::DeterministicSeed());
// Initialize pixels in the input:
// block pixels to random values.
// border pixels to value 10.
src_image.SetPadding(10);
src_image.Set(&rnd, &ACMRandom::Rand8);
for (int blocks = 0; blocks < block_width; blocks += 8) {
(void)memset(flimits, 0, sizeof(*flimits) * flimits_width);
for (int f = 0; f < 255; f++) {
(void)memset(flimits + blocks, f, sizeof(*flimits) * 8);
dst_image.Set(0);
dst_image_ref.Set(0);
vpx_post_proc_down_and_across_mb_row_c(
src_image.TopLeftPixel(), dst_image_ref.TopLeftPixel(),
src_image.stride(), dst_image_ref.stride(), block_width, flimits,
block_height);
ASM_REGISTER_STATE_CHECK(
GetParam()(src_image.TopLeftPixel(), dst_image.TopLeftPixel(),
src_image.stride(), dst_image.stride(), block_width,
flimits, block_height));
ASSERT_TRUE(dst_image.CheckValues(dst_image_ref));
}
}
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;
Buffer<uint8_t> src = Buffer<uint8_t>(cols, rows, 8, 8, 17, 8);
ASSERT_TRUE(src.Init());
src.SetPadding(10);
SetCols(src.TopLeftPixel(), rows, cols, src.stride());
Buffer<uint8_t> expected_output = Buffer<uint8_t>(cols, rows, 0);
ASSERT_TRUE(expected_output.Init());
SetCols(expected_output.TopLeftPixel(), rows, cols, expected_output.stride());
RunFilterLevel(src.TopLeftPixel(), rows, cols, src.stride(), q2mbl(0),
expected_output.TopLeftPixel());
}
TEST_P(VpxMbPostProcAcrossIpTest, CheckMediumFilterOutput) {
const int rows = 16;
const int cols = 16;
Buffer<uint8_t> src = Buffer<uint8_t>(cols, rows, 8, 8, 17, 8);
ASSERT_TRUE(src.Init());
src.SetPadding(10);
SetCols(src.TopLeftPixel(), rows, cols, src.stride());
static const unsigned char kExpectedOutput[cols] = {
2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 13
};
RunFilterLevel(src.TopLeftPixel(), rows, cols, src.stride(), q2mbl(70),
kExpectedOutput);
}
TEST_P(VpxMbPostProcAcrossIpTest, CheckHighFilterOutput) {
const int rows = 16;
const int cols = 16;
Buffer<uint8_t> src = Buffer<uint8_t>(cols, rows, 8, 8, 17, 8);
ASSERT_TRUE(src.Init());
src.SetPadding(10);
SetCols(src.TopLeftPixel(), rows, cols, src.stride());
static const unsigned char kExpectedOutput[cols] = {
2, 2, 3, 4, 4, 5, 6, 7, 8, 9, 10, 11, 11, 12, 13, 13
};
RunFilterLevel(src.TopLeftPixel(), rows, cols, src.stride(), INT_MAX,
kExpectedOutput);
SetCols(src.TopLeftPixel(), rows, cols, src.stride());
RunFilterLevel(src.TopLeftPixel(), rows, cols, src.stride(), q2mbl(100),
kExpectedOutput);
}
TEST_P(VpxMbPostProcAcrossIpTest, CheckCvsAssembly) {
const int rows = 16;
const int cols = 16;
Buffer<uint8_t> c_mem = Buffer<uint8_t>(cols, rows, 8, 8, 17, 8);
ASSERT_TRUE(c_mem.Init());
Buffer<uint8_t> asm_mem = Buffer<uint8_t>(cols, rows, 8, 8, 17, 8);
ASSERT_TRUE(asm_mem.Init());
// 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++) {
c_mem.SetPadding(10);
asm_mem.SetPadding(10);
SetCols(c_mem.TopLeftPixel(), rows, cols, c_mem.stride());
SetCols(asm_mem.TopLeftPixel(), rows, cols, asm_mem.stride());
vpx_mbpost_proc_across_ip_c(c_mem.TopLeftPixel(), c_mem.stride(), rows,
cols, q2mbl(level));
ASM_REGISTER_STATE_CHECK(GetParam()(
asm_mem.TopLeftPixel(), asm_mem.stride(), rows, cols, q2mbl(level)));
ASSERT_TRUE(asm_mem.CheckValues(c_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, int src_width) {
for (int r = 0; r < rows; r++) {
memset(src_c, r, cols);
src_c += 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[r * rows + 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(VpxMbPostProcDownTest, CheckHighFilterOutput) {
const int rows = 16;
const int cols = 16;
Buffer<uint8_t> src_c = Buffer<uint8_t>(cols, rows, 8, 8, 8, 17);
ASSERT_TRUE(src_c.Init());
src_c.SetPadding(10);
SetRows(src_c.TopLeftPixel(), rows, cols, src_c.stride());
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.TopLeftPixel(), rows, cols, src_c.stride(), INT_MAX,
kExpectedOutput);
src_c.SetPadding(10);
SetRows(src_c.TopLeftPixel(), rows, cols, src_c.stride());
RunFilterLevel(src_c.TopLeftPixel(), rows, cols, src_c.stride(), q2mbl(100),
kExpectedOutput);
}
TEST_P(VpxMbPostProcDownTest, CheckMediumFilterOutput) {
const int rows = 16;
const int cols = 16;
Buffer<uint8_t> src_c = Buffer<uint8_t>(cols, rows, 8, 8, 8, 17);
ASSERT_TRUE(src_c.Init());
src_c.SetPadding(10);
SetRows(src_c.TopLeftPixel(), rows, cols, src_c.stride());
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.TopLeftPixel(), rows, cols, src_c.stride(), q2mbl(70),
kExpectedOutput);
}
TEST_P(VpxMbPostProcDownTest, CheckLowFilterOutput) {
const int rows = 16;
const int cols = 16;
Buffer<uint8_t> src_c = Buffer<uint8_t>(cols, rows, 8, 8, 8, 17);
ASSERT_TRUE(src_c.Init());
src_c.SetPadding(10);
SetRows(src_c.TopLeftPixel(), rows, cols, src_c.stride());
unsigned char *expected_output = new unsigned char[rows * cols];
ASSERT_TRUE(expected_output != NULL);
SetRows(expected_output, rows, cols, cols);
RunFilterLevel(src_c.TopLeftPixel(), rows, cols, src_c.stride(), q2mbl(0),
expected_output);
delete[] expected_output;
}
TEST_P(VpxMbPostProcDownTest, CheckCvsAssembly) {
const int rows = 16;
const int cols = 16;
ACMRandom rnd;
rnd.Reset(ACMRandom::DeterministicSeed());
Buffer<uint8_t> src_c = Buffer<uint8_t>(cols, rows, 8, 8, 8, 17);
ASSERT_TRUE(src_c.Init());
Buffer<uint8_t> src_asm = Buffer<uint8_t>(cols, rows, 8, 8, 8, 17);
ASSERT_TRUE(src_asm.Init());
for (int level = 0; level < 100; level++) {
src_c.SetPadding(10);
src_asm.SetPadding(10);
src_c.Set(&rnd, &ACMRandom::Rand8);
src_asm.CopyFrom(src_c);
vpx_mbpost_proc_down_c(src_c.TopLeftPixel(), src_c.stride(), rows, cols,
q2mbl(level));
ASM_REGISTER_STATE_CHECK(GetParam()(
src_asm.TopLeftPixel(), src_asm.stride(), rows, cols, q2mbl(level)));
ASSERT_TRUE(src_asm.CheckValues(src_c));
src_c.SetPadding(10);
src_asm.SetPadding(10);
src_c.Set(&rnd, &ACMRandom::Rand8Extremes);
src_asm.CopyFrom(src_c);
vpx_mbpost_proc_down_c(src_c.TopLeftPixel(), src_c.stride(), rows, cols,
q2mbl(level));
ASM_REGISTER_STATE_CHECK(GetParam()(
src_asm.TopLeftPixel(), src_asm.stride(), rows, cols, q2mbl(level)));
ASSERT_TRUE(src_asm.CheckValues(src_c));
}
}
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 // HAVE_SSE2
#if HAVE_NEON
INSTANTIATE_TEST_CASE_P(
NEON, VpxPostProcDownAndAcrossMbRowTest,
::testing::Values(vpx_post_proc_down_and_across_mb_row_neon));
INSTANTIATE_TEST_CASE_P(NEON, VpxMbPostProcAcrossIpTest,
::testing::Values(vpx_mbpost_proc_across_ip_neon));
INSTANTIATE_TEST_CASE_P(NEON, VpxMbPostProcDownTest,
::testing::Values(vpx_mbpost_proc_down_neon));
#endif // HAVE_NEON
#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 // HAVE_MSA
} // namespace