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/*
* Copyright 2011 The LibYuv 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 <stdlib.h>
#include <time.h>
#include "libyuv/cpu_id.h"
#include "libyuv/scale.h"
#include "../unit_test/unit_test.h"
#define STRINGIZE(line) #line
#define FILELINESTR(file, line) file ":" STRINGIZE(line)
namespace libyuv {
// Test scaling with C vs Opt and return maximum pixel difference. 0 = exact.
static int TestFilter(int src_width, int src_height,
int dst_width, int dst_height,
FilterMode f, int benchmark_iterations,
int disable_cpu_flags, int benchmark_cpu_info) {
if (!SizeValid(src_width, src_height, dst_width, dst_height)) {
return 0;
}
int i, j;
const int b = 0; // 128 to test for padding/stride.
int src_width_uv = (Abs(src_width) + 1) >> 1;
int src_height_uv = (Abs(src_height) + 1) >> 1;
int64 src_y_plane_size = (Abs(src_width) + b * 2) * (Abs(src_height) + b * 2);
int64 src_uv_plane_size = (src_width_uv + b * 2) * (src_height_uv + b * 2);
int src_stride_y = b * 2 + Abs(src_width);
int src_stride_uv = b * 2 + src_width_uv;
align_buffer_page_end(src_y, src_y_plane_size)
align_buffer_page_end(src_u, src_uv_plane_size)
align_buffer_page_end(src_v, src_uv_plane_size)
if (!src_y || !src_u || !src_v) {
printf("Skipped. Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n");
return 0;
}
MemRandomize(src_y, src_y_plane_size);
MemRandomize(src_u, src_uv_plane_size);
MemRandomize(src_v, src_uv_plane_size);
int dst_width_uv = (dst_width + 1) >> 1;
int dst_height_uv = (dst_height + 1) >> 1;
int64 dst_y_plane_size = (dst_width + b * 2) * (dst_height + b * 2);
int64 dst_uv_plane_size = (dst_width_uv + b * 2) * (dst_height_uv + b * 2);
int dst_stride_y = b * 2 + dst_width;
int dst_stride_uv = b * 2 + dst_width_uv;
align_buffer_page_end(dst_y_c, dst_y_plane_size)
align_buffer_page_end(dst_u_c, dst_uv_plane_size)
align_buffer_page_end(dst_v_c, dst_uv_plane_size)
align_buffer_page_end(dst_y_opt, dst_y_plane_size)
align_buffer_page_end(dst_u_opt, dst_uv_plane_size)
align_buffer_page_end(dst_v_opt, dst_uv_plane_size)
if (!dst_y_c || !dst_u_c || !dst_v_c ||
!dst_y_opt|| !dst_u_opt|| !dst_v_opt) {
printf("Skipped. Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n");
return 0;
}
MaskCpuFlags(disable_cpu_flags); // Disable all CPU optimization.
double c_time = get_time();
I420Scale(src_y + (src_stride_y * b) + b, src_stride_y,
src_u + (src_stride_uv * b) + b, src_stride_uv,
src_v + (src_stride_uv * b) + b, src_stride_uv,
src_width, src_height,
dst_y_c + (dst_stride_y * b) + b, dst_stride_y,
dst_u_c + (dst_stride_uv * b) + b, dst_stride_uv,
dst_v_c + (dst_stride_uv * b) + b, dst_stride_uv,
dst_width, dst_height, f);
c_time = (get_time() - c_time);
MaskCpuFlags(benchmark_cpu_info); // Enable all CPU optimization.
double opt_time = get_time();
for (i = 0; i < benchmark_iterations; ++i) {
I420Scale(src_y + (src_stride_y * b) + b, src_stride_y,
src_u + (src_stride_uv * b) + b, src_stride_uv,
src_v + (src_stride_uv * b) + b, src_stride_uv,
src_width, src_height,
dst_y_opt + (dst_stride_y * b) + b, dst_stride_y,
dst_u_opt + (dst_stride_uv * b) + b, dst_stride_uv,
dst_v_opt + (dst_stride_uv * b) + b, dst_stride_uv,
dst_width, dst_height, f);
}
opt_time = (get_time() - opt_time) / benchmark_iterations;
// Report performance of C vs OPT
printf("filter %d - %8d us C - %8d us OPT\n",
f,
static_cast<int>(c_time * 1e6),
static_cast<int>(opt_time * 1e6));
// C version may be a little off from the optimized. Order of
// operations may introduce rounding somewhere. So do a difference
// of the buffers and look to see that the max difference isn't
// over 2.
int max_diff = 0;
for (i = b; i < (dst_height + b); ++i) {
for (j = b; j < (dst_width + b); ++j) {
int abs_diff = Abs(dst_y_c[(i * dst_stride_y) + j] -
dst_y_opt[(i * dst_stride_y) + j]);
if (abs_diff > max_diff) {
max_diff = abs_diff;
}
}
}
for (i = b; i < (dst_height_uv + b); ++i) {
for (j = b; j < (dst_width_uv + b); ++j) {
int abs_diff = Abs(dst_u_c[(i * dst_stride_uv) + j] -
dst_u_opt[(i * dst_stride_uv) + j]);
if (abs_diff > max_diff) {
max_diff = abs_diff;
}
abs_diff = Abs(dst_v_c[(i * dst_stride_uv) + j] -
dst_v_opt[(i * dst_stride_uv) + j]);
if (abs_diff > max_diff) {
max_diff = abs_diff;
}
}
}
free_aligned_buffer_page_end(dst_y_c)
free_aligned_buffer_page_end(dst_u_c)
free_aligned_buffer_page_end(dst_v_c)
free_aligned_buffer_page_end(dst_y_opt)
free_aligned_buffer_page_end(dst_u_opt)
free_aligned_buffer_page_end(dst_v_opt)
free_aligned_buffer_page_end(src_y)
free_aligned_buffer_page_end(src_u)
free_aligned_buffer_page_end(src_v)
return max_diff;
}
// Test scaling with 8 bit C vs 16 bit C and return maximum pixel difference.
// 0 = exact.
static int TestFilter_16(int src_width, int src_height,
int dst_width, int dst_height,
FilterMode f, int benchmark_iterations) {
if (!SizeValid(src_width, src_height, dst_width, dst_height)) {
return 0;
}
int i, j;
const int b = 0; // 128 to test for padding/stride.
int src_width_uv = (Abs(src_width) + 1) >> 1;
int src_height_uv = (Abs(src_height) + 1) >> 1;
int64 src_y_plane_size = (Abs(src_width) + b * 2) *
(Abs(src_height) + b * 2);
int64 src_uv_plane_size = (src_width_uv + b * 2) * (src_height_uv + b * 2);
int src_stride_y = b * 2 + Abs(src_width);
int src_stride_uv = b * 2 + src_width_uv;
align_buffer_page_end(src_y, src_y_plane_size)
align_buffer_page_end(src_u, src_uv_plane_size)
align_buffer_page_end(src_v, src_uv_plane_size)
align_buffer_page_end(src_y_16, src_y_plane_size * 2)
align_buffer_page_end(src_u_16, src_uv_plane_size * 2)
align_buffer_page_end(src_v_16, src_uv_plane_size * 2)
uint16* p_src_y_16 = reinterpret_cast<uint16*>(src_y_16);
uint16* p_src_u_16 = reinterpret_cast<uint16*>(src_u_16);
uint16* p_src_v_16 = reinterpret_cast<uint16*>(src_v_16);
MemRandomize(src_y, src_y_plane_size);
MemRandomize(src_u, src_uv_plane_size);
MemRandomize(src_v, src_uv_plane_size);
for (i = b; i < src_height + b; ++i) {
for (j = b; j < src_width + b; ++j) {
p_src_y_16[(i * src_stride_y) + j] = src_y[(i * src_stride_y) + j];
}
}
for (i = b; i < (src_height_uv + b); ++i) {
for (j = b; j < (src_width_uv + b); ++j) {
p_src_u_16[(i * src_stride_uv) + j] = src_u[(i * src_stride_uv) + j];
p_src_v_16[(i * src_stride_uv) + j] = src_v[(i * src_stride_uv) + j];
}
}
int dst_width_uv = (dst_width + 1) >> 1;
int dst_height_uv = (dst_height + 1) >> 1;
int dst_y_plane_size = (dst_width + b * 2) * (dst_height + b * 2);
int dst_uv_plane_size = (dst_width_uv + b * 2) * (dst_height_uv + b * 2);
int dst_stride_y = b * 2 + dst_width;
int dst_stride_uv = b * 2 + dst_width_uv;
align_buffer_page_end(dst_y_8, dst_y_plane_size)
align_buffer_page_end(dst_u_8, dst_uv_plane_size)
align_buffer_page_end(dst_v_8, dst_uv_plane_size)
align_buffer_page_end(dst_y_16, dst_y_plane_size * 2)
align_buffer_page_end(dst_u_16, dst_uv_plane_size * 2)
align_buffer_page_end(dst_v_16, dst_uv_plane_size * 2)
uint16* p_dst_y_16 = reinterpret_cast<uint16*>(dst_y_16);
uint16* p_dst_u_16 = reinterpret_cast<uint16*>(dst_u_16);
uint16* p_dst_v_16 = reinterpret_cast<uint16*>(dst_v_16);
I420Scale(src_y + (src_stride_y * b) + b, src_stride_y,
src_u + (src_stride_uv * b) + b, src_stride_uv,
src_v + (src_stride_uv * b) + b, src_stride_uv,
src_width, src_height,
dst_y_8 + (dst_stride_y * b) + b, dst_stride_y,
dst_u_8 + (dst_stride_uv * b) + b, dst_stride_uv,
dst_v_8 + (dst_stride_uv * b) + b, dst_stride_uv,
dst_width, dst_height, f);
for (i = 0; i < benchmark_iterations; ++i) {
I420Scale_16(p_src_y_16 + (src_stride_y * b) + b, src_stride_y,
p_src_u_16 + (src_stride_uv * b) + b, src_stride_uv,
p_src_v_16 + (src_stride_uv * b) + b, src_stride_uv,
src_width, src_height,
p_dst_y_16 + (dst_stride_y * b) + b, dst_stride_y,
p_dst_u_16 + (dst_stride_uv * b) + b, dst_stride_uv,
p_dst_v_16 + (dst_stride_uv * b) + b, dst_stride_uv,
dst_width, dst_height, f);
}
// Expect an exact match
int max_diff = 0;
for (i = b; i < (dst_height + b); ++i) {
for (j = b; j < (dst_width + b); ++j) {
int abs_diff = Abs(dst_y_8[(i * dst_stride_y) + j] -
p_dst_y_16[(i * dst_stride_y) + j]);
if (abs_diff > max_diff) {
max_diff = abs_diff;
}
}
}
for (i = b; i < (dst_height_uv + b); ++i) {
for (j = b; j < (dst_width_uv + b); ++j) {
int abs_diff = Abs(dst_u_8[(i * dst_stride_uv) + j] -
p_dst_u_16[(i * dst_stride_uv) + j]);
if (abs_diff > max_diff) {
max_diff = abs_diff;
}
abs_diff = Abs(dst_v_8[(i * dst_stride_uv) + j] -
p_dst_v_16[(i * dst_stride_uv) + j]);
if (abs_diff > max_diff) {
max_diff = abs_diff;
}
}
}
free_aligned_buffer_page_end(dst_y_8)
free_aligned_buffer_page_end(dst_u_8)
free_aligned_buffer_page_end(dst_v_8)
free_aligned_buffer_page_end(dst_y_16)
free_aligned_buffer_page_end(dst_u_16)
free_aligned_buffer_page_end(dst_v_16)
free_aligned_buffer_page_end(src_y)
free_aligned_buffer_page_end(src_u)
free_aligned_buffer_page_end(src_v)
free_aligned_buffer_page_end(src_y_16)
free_aligned_buffer_page_end(src_u_16)
free_aligned_buffer_page_end(src_v_16)
return max_diff;
}
// The following adjustments in dimensions ensure the scale factor will be
// exactly achieved.
// 2 is chroma subsample
#define DX(x, nom, denom) static_cast<int>(((Abs(x) / nom + 1) / 2) * nom * 2)
#define SX(x, nom, denom) static_cast<int>(((x / nom + 1) / 2) * denom * 2)
#define TEST_FACTOR1(name, filter, nom, denom, max_diff) \
TEST_F(LibYUVScaleTest, ScaleDownBy##name##_##filter) { \
int diff = TestFilter(SX(benchmark_width_, nom, denom), \
SX(benchmark_height_, nom, denom), \
DX(benchmark_width_, nom, denom), \
DX(benchmark_height_, nom, denom), \
kFilter##filter, benchmark_iterations_, \
disable_cpu_flags_, benchmark_cpu_info_); \
EXPECT_LE(diff, max_diff); \
} \
TEST_F(LibYUVScaleTest, DISABLED_ScaleDownBy##name##_##filter##_16) { \
int diff = TestFilter_16(SX(benchmark_width_, nom, denom), \
SX(benchmark_height_, nom, denom), \
DX(benchmark_width_, nom, denom), \
DX(benchmark_height_, nom, denom), \
kFilter##filter, benchmark_iterations_); \
EXPECT_LE(diff, max_diff); \
}
// Test a scale factor with all 4 filters. Expect unfiltered to be exact, but
// filtering is different fixed point implementations for SSSE3, Neon and C.
#define TEST_FACTOR(name, nom, denom, boxdiff) \
TEST_FACTOR1(name, None, nom, denom, 0) \
TEST_FACTOR1(name, Linear, nom, denom, 3) \
TEST_FACTOR1(name, Bilinear, nom, denom, 3) \
TEST_FACTOR1(name, Box, nom, denom, boxdiff)
TEST_FACTOR(2, 1, 2, 0)
TEST_FACTOR(4, 1, 4, 0)
TEST_FACTOR(8, 1, 8, 0)
TEST_FACTOR(3by4, 3, 4, 1)
TEST_FACTOR(3by8, 3, 8, 1)
TEST_FACTOR(3, 1, 3, 0)
#undef TEST_FACTOR1
#undef TEST_FACTOR
#undef SX
#undef DX
#define TEST_SCALETO1(name, width, height, filter, max_diff) \
TEST_F(LibYUVScaleTest, name##To##width##x##height##_##filter) { \
int diff = TestFilter(benchmark_width_, benchmark_height_, \
width, height, \
kFilter##filter, benchmark_iterations_, \
disable_cpu_flags_, benchmark_cpu_info_); \
EXPECT_LE(diff, max_diff); \
} \
TEST_F(LibYUVScaleTest, name##From##width##x##height##_##filter) { \
int diff = TestFilter(width, height, \
Abs(benchmark_width_), Abs(benchmark_height_), \
kFilter##filter, benchmark_iterations_, \
disable_cpu_flags_, benchmark_cpu_info_); \
EXPECT_LE(diff, max_diff); \
} \
TEST_F(LibYUVScaleTest, \
DISABLED_##name##To##width##x##height##_##filter##_16) { \
int diff = TestFilter_16(benchmark_width_, benchmark_height_, \
width, height, \
kFilter##filter, benchmark_iterations_); \
EXPECT_LE(diff, max_diff); \
} \
TEST_F(LibYUVScaleTest, \
DISABLED_##name##From##width##x##height##_##filter##_16) { \
int diff = TestFilter_16(width, height, \
Abs(benchmark_width_), Abs(benchmark_height_), \
kFilter##filter, benchmark_iterations_); \
EXPECT_LE(diff, max_diff); \
}
// Test scale to a specified size with all 4 filters.
#define TEST_SCALETO(name, width, height) \
TEST_SCALETO1(name, width, height, None, 0) \
TEST_SCALETO1(name, width, height, Linear, 0) \
TEST_SCALETO1(name, width, height, Bilinear, 0) \
TEST_SCALETO1(name, width, height, Box, 0)
TEST_SCALETO(Scale, 1, 1)
TEST_SCALETO(Scale, 320, 240)
TEST_SCALETO(Scale, 352, 288)
TEST_SCALETO(Scale, 569, 480)
TEST_SCALETO(Scale, 640, 360)
TEST_SCALETO(Scale, 1280, 720)
#undef TEST_SCALETO1
#undef TEST_SCALETO
} // namespace libyuv
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