/*
* Copyright 2012 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/rotate_argb.h"
#include "../unit_test/unit_test.h"
namespace libyuv {
static int ARGBTestRotate(int src_width, int src_height,
int dst_width, int dst_height,
libyuv::RotationMode mode, int runs) {
const int b = 128;
int src_argb_plane_size = (src_width + b * 2) * (src_height + b * 2) * 4;
int src_stride_argb = (b * 2 + src_width) * 4;
align_buffer_16(src_argb, src_argb_plane_size)
memset(src_argb, 1, src_argb_plane_size);
int dst_argb_plane_size = (dst_width + b * 2) * (dst_height + b * 2) * 4;
int dst_stride_argb = (b * 2 + dst_width) * 4;
srandom(time(NULL));
int i, j;
for (i = b; i < (src_height + b); ++i) {
for (j = b; j < (src_width + b) * 4; ++j) {
src_argb[(i * src_stride_argb) + j] = (random() & 0xff);
}
}
align_buffer_16(dst_argb_c, dst_argb_plane_size)
align_buffer_16(dst_argb_opt, dst_argb_plane_size)
memset(dst_argb_c, 2, dst_argb_plane_size);
memset(dst_argb_opt, 3, dst_argb_plane_size);
// Warm up both versions for consistent benchmarks.
MaskCpuFlags(0); // Disable all CPU optimization.
ARGBRotate(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
dst_argb_c + (dst_stride_argb * b) + b * 4, dst_stride_argb,
src_width, src_height, mode);
MaskCpuFlags(-1); // Enable all CPU optimization.
ARGBRotate(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
dst_argb_opt + (dst_stride_argb * b) + b * 4, dst_stride_argb,
src_width, src_height, mode);
MaskCpuFlags(0); // Disable all CPU optimization.
double c_time = get_time();
for (i = 0; i < runs; ++i) {
ARGBRotate(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
dst_argb_c + (dst_stride_argb * b) + b * 4, dst_stride_argb,
src_width, src_height, mode);
}
c_time = (get_time() - c_time) / runs;
MaskCpuFlags(-1); // Enable all CPU optimization.
double opt_time = get_time();
for (i = 0; i < runs; ++i) {
ARGBRotate(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
dst_argb_opt + (dst_stride_argb * b) + b * 4, dst_stride_argb,
src_width, src_height, mode);
}
opt_time = (get_time() - opt_time) / runs;
// Report performance of C vs OPT
printf("filter %d - %8d us C - %8d us OPT\n",
mode, 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 * 4; j < (dst_width + b) * 4; ++j) {
int abs_diff = abs(dst_argb_c[(i * dst_stride_argb) + j] -
dst_argb_opt[(i * dst_stride_argb) + j]);
if (abs_diff > max_diff)
max_diff = abs_diff;
}
}
free_aligned_buffer_16(dst_argb_c)
free_aligned_buffer_16(dst_argb_opt)
free_aligned_buffer_16(src_argb)
return max_diff;
}
TEST_F(libyuvTest, ARGBRotate0) {
const int src_width = 1280;
const int src_height = 720;
const int dst_width = 1280;
const int dst_height = 720;
int err = ARGBTestRotate(src_width, src_height,
dst_width, dst_height, kRotate0,
benchmark_iterations_);
EXPECT_GE(1, err);
}
TEST_F(libyuvTest, ARGBRotate90) {
const int src_width = 1280;
const int src_height = 720;
const int dst_width = 720;
const int dst_height = 1280;
int err = ARGBTestRotate(src_width, src_height,
dst_width, dst_height, kRotate90,
benchmark_iterations_);
EXPECT_GE(1, err);
}
TEST_F(libyuvTest, ARGBRotate180) {
const int src_width = 1280;
const int src_height = 720;
const int dst_width = 1280;
const int dst_height = 720;
int err = ARGBTestRotate(src_width, src_height,
dst_width, dst_height, kRotate180,
benchmark_iterations_);
EXPECT_GE(1, err);
}
TEST_F(libyuvTest, ARGBRotate270) {
const int src_width = 1280;
const int src_height = 720;
const int dst_width = 720;
const int dst_height = 1280;
int err = ARGBTestRotate(src_width, src_height,
dst_width, dst_height, kRotate270,
benchmark_iterations_);
EXPECT_GE(1, err);
}
TEST_F(libyuvTest, ARGBRotate0_Odd) {
const int src_width = 1277;
const int src_height = 719;
const int dst_width = 1277;
const int dst_height = 719;
int err = ARGBTestRotate(src_width, src_height,
dst_width, dst_height, kRotate0,
benchmark_iterations_);
EXPECT_GE(1, err);
}
TEST_F(libyuvTest, ARGBRotate90_Odd) {
const int src_width = 1277;
const int src_height = 719;
const int dst_width = 719;
const int dst_height = 1277;
int err = ARGBTestRotate(src_width, src_height,
dst_width, dst_height, kRotate90,
benchmark_iterations_);
EXPECT_GE(1, err);
}
TEST_F(libyuvTest, ARGBRotate180_Odd) {
const int src_width = 1277;
const int src_height = 719;
const int dst_width = 1277;
const int dst_height = 719;
int err = ARGBTestRotate(src_width, src_height,
dst_width, dst_height, kRotate180,
benchmark_iterations_);
EXPECT_GE(1, err);
}
TEST_F(libyuvTest, ARGBRotate270_Odd) {
const int src_width = 1277;
const int src_height = 719;
const int dst_width = 719;
const int dst_height = 1277;
int err = ARGBTestRotate(src_width, src_height,
dst_width, dst_height, kRotate270,
benchmark_iterations_);
EXPECT_GE(1, err);
}
} // namespace libyuv