| /* |
| * 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 "../unit_test/unit_test.h" |
| #include "libyuv/convert_argb.h" |
| #include "libyuv/cpu_id.h" |
| #include "libyuv/scale_argb.h" |
| #include "libyuv/video_common.h" |
| |
| namespace libyuv { |
| |
| #define STRINGIZE(line) #line |
| #define FILELINESTR(file, line) file ":" STRINGIZE(line) |
| |
| #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. |
| static int ARGBTestFilter(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. |
| int64_t src_argb_plane_size = |
| (Abs(src_width) + b * 2) * (Abs(src_height) + b * 2) * 4LL; |
| int src_stride_argb = (b * 2 + Abs(src_width)) * 4; |
| |
| align_buffer_page_end(src_argb, src_argb_plane_size); |
| if (!src_argb) { |
| printf("Skipped. Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n"); |
| return 0; |
| } |
| MemRandomize(src_argb, src_argb_plane_size); |
| |
| int64_t dst_argb_plane_size = |
| (dst_width + b * 2) * (dst_height + b * 2) * 4LL; |
| int dst_stride_argb = (b * 2 + dst_width) * 4; |
| |
| align_buffer_page_end(dst_argb_c, dst_argb_plane_size); |
| align_buffer_page_end(dst_argb_opt, dst_argb_plane_size); |
| if (!dst_argb_c || !dst_argb_opt) { |
| printf("Skipped. Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n"); |
| return 0; |
| } |
| 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(disable_cpu_flags); // Disable all CPU optimization. |
| ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb, |
| src_width, src_height, dst_argb_c + (dst_stride_argb * b) + b * 4, |
| dst_stride_argb, dst_width, dst_height, f); |
| MaskCpuFlags(benchmark_cpu_info); // Enable all CPU optimization. |
| ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb, |
| src_width, src_height, dst_argb_opt + (dst_stride_argb * b) + b * 4, |
| dst_stride_argb, dst_width, dst_height, f); |
| |
| MaskCpuFlags(disable_cpu_flags); // Disable all CPU optimization. |
| double c_time = get_time(); |
| ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb, |
| src_width, src_height, dst_argb_c + (dst_stride_argb * b) + b * 4, |
| dst_stride_argb, 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) { |
| ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb, |
| src_width, src_height, |
| dst_argb_opt + (dst_stride_argb * b) + b * 4, dst_stride_argb, |
| 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 * 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_page_end(dst_argb_c); |
| free_aligned_buffer_page_end(dst_argb_opt); |
| free_aligned_buffer_page_end(src_argb); |
| return max_diff; |
| } |
| |
| static const int kTileX = 64; |
| static const int kTileY = 64; |
| |
| static int TileARGBScale(const uint8_t* src_argb, |
| int src_stride_argb, |
| int src_width, |
| int src_height, |
| uint8_t* dst_argb, |
| int dst_stride_argb, |
| int dst_width, |
| int dst_height, |
| FilterMode filtering) { |
| for (int y = 0; y < dst_height; y += kTileY) { |
| for (int x = 0; x < dst_width; x += kTileX) { |
| int clip_width = kTileX; |
| if (x + clip_width > dst_width) { |
| clip_width = dst_width - x; |
| } |
| int clip_height = kTileY; |
| if (y + clip_height > dst_height) { |
| clip_height = dst_height - y; |
| } |
| int r = ARGBScaleClip(src_argb, src_stride_argb, src_width, src_height, |
| dst_argb, dst_stride_argb, dst_width, dst_height, x, |
| y, clip_width, clip_height, filtering); |
| if (r) { |
| return r; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| static int ARGBClipTestFilter(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; |
| } |
| |
| const int b = 128; |
| int64_t src_argb_plane_size = |
| (Abs(src_width) + b * 2) * (Abs(src_height) + b * 2) * 4; |
| int src_stride_argb = (b * 2 + Abs(src_width)) * 4; |
| |
| align_buffer_page_end(src_argb, src_argb_plane_size); |
| if (!src_argb) { |
| printf("Skipped. Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n"); |
| return 0; |
| } |
| memset(src_argb, 1, src_argb_plane_size); |
| |
| int64_t dst_argb_plane_size = (dst_width + b * 2) * (dst_height + b * 2) * 4; |
| int dst_stride_argb = (b * 2 + dst_width) * 4; |
| |
| int i, j; |
| for (i = b; i < (Abs(src_height) + b); ++i) { |
| for (j = b; j < (Abs(src_width) + b) * 4; ++j) { |
| src_argb[(i * src_stride_argb) + j] = (fastrand() & 0xff); |
| } |
| } |
| |
| align_buffer_page_end(dst_argb_c, dst_argb_plane_size); |
| align_buffer_page_end(dst_argb_opt, dst_argb_plane_size); |
| if (!dst_argb_c || !dst_argb_opt) { |
| printf("Skipped. Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n"); |
| return 0; |
| } |
| memset(dst_argb_c, 2, dst_argb_plane_size); |
| memset(dst_argb_opt, 3, dst_argb_plane_size); |
| |
| // Do full image, no clipping. |
| double c_time = get_time(); |
| ARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb, |
| src_width, src_height, dst_argb_c + (dst_stride_argb * b) + b * 4, |
| dst_stride_argb, dst_width, dst_height, f); |
| c_time = (get_time() - c_time); |
| |
| // Do tiled image, clipping scale to a tile at a time. |
| double opt_time = get_time(); |
| for (i = 0; i < benchmark_iterations; ++i) { |
| TileARGBScale(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb, |
| src_width, src_height, |
| dst_argb_opt + (dst_stride_argb * b) + b * 4, dst_stride_argb, |
| dst_width, dst_height, f); |
| } |
| opt_time = (get_time() - opt_time) / benchmark_iterations; |
| |
| // Report performance of Full vs Tiled. |
| printf("filter %d - %8d us Full - %8d us Tiled\n", f, |
| static_cast<int>(c_time * 1e6), static_cast<int>(opt_time * 1e6)); |
| |
| // Compare full scaled image vs tiled image. |
| 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_page_end(dst_argb_c); |
| free_aligned_buffer_page_end(dst_argb_opt); |
| free_aligned_buffer_page_end(src_argb); |
| return max_diff; |
| } |
| |
| // The following adjustments in dimensions ensure the scale factor will be |
| // exactly achieved. |
| #define DX(x, nom, denom) static_cast<int>((Abs(x) / nom) * nom) |
| #define SX(x, nom, denom) static_cast<int>((x / nom) * denom) |
| |
| #define TEST_FACTOR1(DISABLED_, name, filter, nom, denom, max_diff) \ |
| TEST_F(LibYUVScaleTest, ARGBScaleDownBy##name##_##filter) { \ |
| int diff = ARGBTestFilter( \ |
| 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_##ARGBScaleDownClipBy##name##_##filter) { \ |
| int diff = ARGBClipTestFilter( \ |
| 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. |
| #ifndef DISABLE_SLOW_TESTS |
| #define TEST_FACTOR(name, nom, denom) \ |
| 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, 3) |
| #else |
| #if defined(ENABLE_FULL_TESTS) |
| #define TEST_FACTOR(name, nom, denom) \ |
| TEST_FACTOR1(DISABLED_, name, None, nom, denom, 0) \ |
| TEST_FACTOR1(DISABLED_, name, Linear, nom, denom, 3) \ |
| TEST_FACTOR1(DISABLED_, name, Bilinear, nom, denom, 3) \ |
| TEST_FACTOR1(DISABLED_, name, Box, nom, denom, 3) |
| #else |
| #define TEST_FACTOR(name, nom, denom) \ |
| TEST_FACTOR1(DISABLED_, name, Bilinear, nom, denom, 3) |
| #endif |
| #endif |
| |
| TEST_FACTOR(2, 1, 2) |
| TEST_FACTOR(4, 1, 4) |
| #ifndef DISABLE_SLOW_TESTS |
| TEST_FACTOR(8, 1, 8) |
| #endif |
| TEST_FACTOR(3by4, 3, 4) |
| TEST_FACTOR(3by8, 3, 8) |
| TEST_FACTOR(3, 1, 3) |
| #undef TEST_FACTOR1 |
| #undef TEST_FACTOR |
| #undef SX |
| #undef DX |
| |
| #define TEST_SCALETO1(DISABLED_, name, width, height, filter, max_diff) \ |
| TEST_F(LibYUVScaleTest, name##To##width##x##height##_##filter) { \ |
| int diff = ARGBTestFilter(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 = ARGBTestFilter(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##ClipTo##width##x##height##_##filter) { \ |
| int diff = \ |
| ARGBClipTestFilter(benchmark_width_, benchmark_height_, width, height, \ |
| kFilter##filter, benchmark_iterations_); \ |
| EXPECT_LE(diff, max_diff); \ |
| } \ |
| TEST_F(LibYUVScaleTest, \ |
| DISABLED_##name##ClipFrom##width##x##height##_##filter) { \ |
| int diff = ARGBClipTestFilter(width, height, Abs(benchmark_width_), \ |
| Abs(benchmark_height_), kFilter##filter, \ |
| benchmark_iterations_); \ |
| EXPECT_LE(diff, max_diff); \ |
| } |
| |
| #ifndef DISABLE_SLOW_TESTS |
| // 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, 3) \ |
| TEST_SCALETO1(, name, width, height, Bilinear, 3) \ |
| TEST_SCALETO1(, name, width, height, Box, 3) |
| #else |
| #if defined(ENABLE_FULL_TESTS) |
| #define TEST_SCALETO(name, width, height) \ |
| TEST_SCALETO1(DISABLED_, name, width, height, None, 0) \ |
| TEST_SCALETO1(DISABLED_, name, width, height, Linear, 3) \ |
| TEST_SCALETO1(DISABLED_, name, width, height, Bilinear, 3) \ |
| TEST_SCALETO1(DISABLED_, name, width, height, Box, 3) |
| #else |
| #define TEST_SCALETO(name, width, height) \ |
| TEST_SCALETO1(DISABLED_, name, width, height, Bilinear, 3) |
| #endif |
| #endif |
| |
| TEST_SCALETO(ARGBScale, 1, 1) |
| TEST_SCALETO(ARGBScale, 569, 480) |
| TEST_SCALETO(ARGBScale, 640, 360) |
| #ifndef DISABLE_SLOW_TESTS |
| TEST_SCALETO(ARGBScale, 50, 1) |
| TEST_SCALETO(ARGBScale, 256, 144) /* 128x72 * 2 */ |
| TEST_SCALETO(ARGBScale, 320, 240) |
| TEST_SCALETO(ARGBScale, 1280, 720) |
| TEST_SCALETO(ARGBScale, 1920, 1080) |
| #endif // DISABLE_SLOW_TESTS |
| #undef TEST_SCALETO1 |
| #undef TEST_SCALETO |
| |
| #define TEST_SCALESWAPXY1(name, filter, max_diff) \ |
| TEST_F(LibYUVScaleTest, name##SwapXY_##filter) { \ |
| int diff = ARGBTestFilter(benchmark_width_, benchmark_height_, \ |
| benchmark_height_, benchmark_width_, \ |
| kFilter##filter, benchmark_iterations_, \ |
| disable_cpu_flags_, benchmark_cpu_info_); \ |
| EXPECT_LE(diff, max_diff); \ |
| } |
| |
| #if defined(ENABLE_FULL_TESTS) |
| // Test scale with swapped width and height with all 3 filters. |
| TEST_SCALESWAPXY1(ARGBScale, None, 0) |
| TEST_SCALESWAPXY1(ARGBScale, Linear, 0) |
| TEST_SCALESWAPXY1(ARGBScale, Bilinear, 0) |
| #else |
| TEST_SCALESWAPXY1(ARGBScale, Bilinear, 0) |
| #endif |
| #undef TEST_SCALESWAPXY1 |
| |
| // Scale with YUV conversion to ARGB and clipping. |
| // TODO(fbarchard): Add fourcc support. All 4 ARGB formats is easy to support. |
| static int YUVToARGBScaleReference2(const uint8_t* src_y, |
| int src_stride_y, |
| const uint8_t* src_u, |
| int src_stride_u, |
| const uint8_t* src_v, |
| int src_stride_v, |
| uint32_t /* src_fourcc */, |
| int src_width, |
| int src_height, |
| uint8_t* dst_argb, |
| int dst_stride_argb, |
| uint32_t /* dst_fourcc */, |
| int dst_width, |
| int dst_height, |
| int clip_x, |
| int clip_y, |
| int clip_width, |
| int clip_height, |
| enum FilterMode filtering) { |
| uint8_t* argb_buffer = |
| static_cast<uint8_t*>(malloc(src_width * src_height * 4)); |
| int r; |
| I420ToARGB(src_y, src_stride_y, src_u, src_stride_u, src_v, src_stride_v, |
| argb_buffer, src_width * 4, src_width, src_height); |
| |
| r = ARGBScaleClip(argb_buffer, src_width * 4, src_width, src_height, dst_argb, |
| dst_stride_argb, dst_width, dst_height, clip_x, clip_y, |
| clip_width, clip_height, filtering); |
| free(argb_buffer); |
| return r; |
| } |
| |
| static void FillRamp(uint8_t* buf, |
| int width, |
| int height, |
| int v, |
| int dx, |
| int dy) { |
| int rv = v; |
| for (int y = 0; y < height; ++y) { |
| for (int x = 0; x < width; ++x) { |
| *buf++ = v; |
| v += dx; |
| if (v < 0 || v > 255) { |
| dx = -dx; |
| v += dx; |
| } |
| } |
| v = rv + dy; |
| if (v < 0 || v > 255) { |
| dy = -dy; |
| v += dy; |
| } |
| rv = v; |
| } |
| } |
| |
| // Test scaling with C vs Opt and return maximum pixel difference. 0 = exact. |
| static int YUVToARGBTestFilter(int src_width, |
| int src_height, |
| int dst_width, |
| int dst_height, |
| FilterMode f, |
| int benchmark_iterations) { |
| int64_t src_y_plane_size = Abs(src_width) * Abs(src_height); |
| int64_t src_uv_plane_size = |
| ((Abs(src_width) + 1) / 2) * ((Abs(src_height) + 1) / 2); |
| int src_stride_y = Abs(src_width); |
| int src_stride_uv = (Abs(src_width) + 1) / 2; |
| |
| 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); |
| |
| int64_t dst_argb_plane_size = (dst_width) * (dst_height)*4LL; |
| int dst_stride_argb = (dst_width)*4; |
| align_buffer_page_end(dst_argb_c, dst_argb_plane_size); |
| align_buffer_page_end(dst_argb_opt, dst_argb_plane_size); |
| if (!dst_argb_c || !dst_argb_opt || !src_y || !src_u || !src_v) { |
| printf("Skipped. Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n"); |
| return 0; |
| } |
| // Fill YUV image with continuous ramp, which is less sensitive to |
| // subsampling and filtering differences for test purposes. |
| FillRamp(src_y, Abs(src_width), Abs(src_height), 128, 1, 1); |
| FillRamp(src_u, (Abs(src_width) + 1) / 2, (Abs(src_height) + 1) / 2, 3, 1, 1); |
| FillRamp(src_v, (Abs(src_width) + 1) / 2, (Abs(src_height) + 1) / 2, 4, 1, 1); |
| memset(dst_argb_c, 2, dst_argb_plane_size); |
| memset(dst_argb_opt, 3, dst_argb_plane_size); |
| |
| YUVToARGBScaleReference2(src_y, src_stride_y, src_u, src_stride_uv, src_v, |
| src_stride_uv, libyuv::FOURCC_I420, src_width, |
| src_height, dst_argb_c, dst_stride_argb, |
| libyuv::FOURCC_I420, dst_width, dst_height, 0, 0, |
| dst_width, dst_height, f); |
| |
| for (int i = 0; i < benchmark_iterations; ++i) { |
| YUVToARGBScaleClip(src_y, src_stride_y, src_u, src_stride_uv, src_v, |
| src_stride_uv, libyuv::FOURCC_I420, src_width, |
| src_height, dst_argb_opt, dst_stride_argb, |
| libyuv::FOURCC_I420, dst_width, dst_height, 0, 0, |
| dst_width, dst_height, f); |
| } |
| int max_diff = 0; |
| for (int i = 0; i < dst_height; ++i) { |
| for (int j = 0; j < dst_width * 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) { |
| printf("error %d at %d,%d c %d opt %d", abs_diff, j, i, |
| dst_argb_c[(i * dst_stride_argb) + j], |
| dst_argb_opt[(i * dst_stride_argb) + j]); |
| EXPECT_LE(abs_diff, 40); |
| max_diff = abs_diff; |
| } |
| } |
| } |
| |
| free_aligned_buffer_page_end(dst_argb_c); |
| free_aligned_buffer_page_end(dst_argb_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_F(LibYUVScaleTest, YUVToRGBScaleUp) { |
| int diff = |
| YUVToARGBTestFilter(benchmark_width_, benchmark_height_, |
| benchmark_width_ * 3 / 2, benchmark_height_ * 3 / 2, |
| libyuv::kFilterBilinear, benchmark_iterations_); |
| EXPECT_LE(diff, 10); |
| } |
| |
| TEST_F(LibYUVScaleTest, YUVToRGBScaleDown) { |
| int diff = YUVToARGBTestFilter( |
| benchmark_width_ * 3 / 2, benchmark_height_ * 3 / 2, benchmark_width_, |
| benchmark_height_, libyuv::kFilterBilinear, benchmark_iterations_); |
| EXPECT_LE(diff, 10); |
| } |
| |
| TEST_F(LibYUVScaleTest, ARGBTest3x) { |
| const int kSrcStride = 480 * 4; |
| const int kDstStride = 160 * 4; |
| const int kSize = kSrcStride * 3; |
| align_buffer_page_end(orig_pixels, kSize); |
| for (int i = 0; i < 480 * 3; ++i) { |
| orig_pixels[i * 4 + 0] = i; |
| orig_pixels[i * 4 + 1] = 255 - i; |
| orig_pixels[i * 4 + 2] = i + 1; |
| orig_pixels[i * 4 + 3] = i + 10; |
| } |
| align_buffer_page_end(dest_pixels, kDstStride); |
| |
| int iterations160 = (benchmark_width_ * benchmark_height_ + (160 - 1)) / 160 * |
| benchmark_iterations_; |
| for (int i = 0; i < iterations160; ++i) { |
| ARGBScale(orig_pixels, kSrcStride, 480, 3, dest_pixels, kDstStride, 160, 1, |
| kFilterBilinear); |
| } |
| |
| EXPECT_EQ(225, dest_pixels[0]); |
| EXPECT_EQ(255 - 225, dest_pixels[1]); |
| EXPECT_EQ(226, dest_pixels[2]); |
| EXPECT_EQ(235, dest_pixels[3]); |
| |
| ARGBScale(orig_pixels, kSrcStride, 480, 3, dest_pixels, kDstStride, 160, 1, |
| kFilterNone); |
| |
| EXPECT_EQ(225, dest_pixels[0]); |
| EXPECT_EQ(255 - 225, dest_pixels[1]); |
| EXPECT_EQ(226, dest_pixels[2]); |
| EXPECT_EQ(235, dest_pixels[3]); |
| |
| free_aligned_buffer_page_end(dest_pixels); |
| free_aligned_buffer_page_end(orig_pixels); |
| } |
| |
| TEST_F(LibYUVScaleTest, ARGBTest4x) { |
| const int kSrcStride = 640 * 4; |
| const int kDstStride = 160 * 4; |
| const int kSize = kSrcStride * 4; |
| align_buffer_page_end(orig_pixels, kSize); |
| for (int i = 0; i < 640 * 4; ++i) { |
| orig_pixels[i * 4 + 0] = i; |
| orig_pixels[i * 4 + 1] = 255 - i; |
| orig_pixels[i * 4 + 2] = i + 1; |
| orig_pixels[i * 4 + 3] = i + 10; |
| } |
| align_buffer_page_end(dest_pixels, kDstStride); |
| |
| int iterations160 = (benchmark_width_ * benchmark_height_ + (160 - 1)) / 160 * |
| benchmark_iterations_; |
| for (int i = 0; i < iterations160; ++i) { |
| ARGBScale(orig_pixels, kSrcStride, 640, 4, dest_pixels, kDstStride, 160, 1, |
| kFilterBilinear); |
| } |
| |
| EXPECT_NEAR(66, dest_pixels[0], 4); |
| EXPECT_NEAR(255 - 66, dest_pixels[1], 4); |
| EXPECT_NEAR(67, dest_pixels[2], 4); |
| EXPECT_NEAR(76, dest_pixels[3], 4); |
| |
| ARGBScale(orig_pixels, kSrcStride, 640, 4, dest_pixels, kDstStride, 160, 1, |
| kFilterNone); |
| |
| EXPECT_EQ(2, dest_pixels[0]); |
| EXPECT_EQ(255 - 2, dest_pixels[1]); |
| EXPECT_EQ(3, dest_pixels[2]); |
| EXPECT_EQ(12, dest_pixels[3]); |
| |
| free_aligned_buffer_page_end(dest_pixels); |
| free_aligned_buffer_page_end(orig_pixels); |
| } |
| |
| } // namespace libyuv |
