/* * 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.
*/
#if !defined(DISABLE_SLOW_TESTS) || defined(__x86_64__) || defined(__i386__) // SLOW TESTS are those that are unoptimized C code. // FULL TESTS are optimized but test many variations of the same code. #define ENABLE_FULL_TESTS #endif
// Test scaling with C vs Opt and return maximum pixel difference. 0 = exact. staticint UVTestFilter(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;
int64_t src_uv_plane_size = Abs(src_width) * Abs(src_height) * 2LL; int src_stride_uv = Abs(src_width) * 2;
int64_t dst_uv_plane_size = dst_width * dst_height * 2LL; int dst_stride_uv = dst_width * 2;
MaskCpuFlags(benchmark_cpu_info); // Enable all CPU optimization. double opt_time = get_time(); for (i = 0; i < benchmark_iterations; ++i) {
UVScale(src_uv, src_stride_uv, src_width, src_height, dst_uv_opt,
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));
int max_diff = 0; for (i = 0; i < dst_uv_plane_size; ++i) { int abs_diff = Abs(dst_uv_c[i] - dst_uv_opt[i]); if (abs_diff > max_diff) {
max_diff = abs_diff;
}
}
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