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libyuv/unit_test/planar_test.cc
fbarchard@google.com 5566302866 AddRow function to help implement box filter 
BUG=none
TEST=none
Review URL: https://webrtc-codereview.appspot.com/527002

git-svn-id: http://libyuv.googlecode.com/svn/trunk@252 16f28f9a-4ce2-e073-06de-1de4eb20be90
2012-04-26 00:01:41 +00:00

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/*
* Copyright (c) 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/convert_from.h"
#include "libyuv/cpu_id.h"
#include "libyuv/planar_functions.h"
#include "libyuv/rotate.h"
#include "unit_test/unit_test.h"
#if defined(_MSC_VER)
#define SIMD_ALIGNED(var) __declspec(align(16)) var
#else // __GNUC__
#define SIMD_ALIGNED(var) var __attribute__((aligned(16)))
#endif
namespace libyuv {
TEST_F(libyuvTest, BenchmarkI420ToARGB_C) {
align_buffer_16(src_y, benchmark_width_ * benchmark_height_);
align_buffer_16(src_u, (benchmark_width_ * benchmark_height_) >> 2);
align_buffer_16(src_v, (benchmark_width_ * benchmark_height_) >> 2);
align_buffer_16(dst_argb, (benchmark_width_ << 2) * benchmark_height_);
MaskCpuFlags(kCpuInitialized);
for (int i = 0; i < benchmark_iterations_; ++i)
I420ToARGB(src_y, benchmark_width_,
src_u, benchmark_width_ >> 1,
src_v, benchmark_width_ >> 1,
dst_argb, benchmark_width_ << 2,
benchmark_width_, benchmark_height_);
MaskCpuFlags(-1);
EXPECT_EQ(0, 0);
free_aligned_buffer_16(src_y)
free_aligned_buffer_16(src_u)
free_aligned_buffer_16(src_v)
free_aligned_buffer_16(dst_argb)
}
TEST_F(libyuvTest, BenchmarkI420ToARGB_OPT) {
align_buffer_16(src_y, benchmark_width_ * benchmark_height_);
align_buffer_16(src_u, (benchmark_width_ * benchmark_height_) >> 2);
align_buffer_16(src_v, (benchmark_width_ * benchmark_height_) >> 2);
align_buffer_16(dst_argb, (benchmark_width_ << 2) * benchmark_height_);
for (int i = 0; i < benchmark_iterations_; ++i)
I420ToARGB(src_y, benchmark_width_,
src_u, benchmark_width_ >> 1,
src_v, benchmark_width_ >> 1,
dst_argb, benchmark_width_ << 2,
benchmark_width_, benchmark_height_);
free_aligned_buffer_16(src_y)
free_aligned_buffer_16(src_u)
free_aligned_buffer_16(src_v)
free_aligned_buffer_16(dst_argb)
}
#define TESTI420TO(FMT) \
TEST_F(libyuvTest, I420To##FMT##_CvsOPT) { \
const int src_width = 1280; \
const int src_height = 720; \
align_buffer_16(src_y, src_width * src_height); \
align_buffer_16(src_u, (src_width * src_height) >> 2); \
align_buffer_16(src_v, (src_width * src_height) >> 2); \
align_buffer_16(dst_rgb_c, (src_width << 2) * src_height); \
align_buffer_16(dst_rgb_opt, (src_width << 2) * src_height); \
srandom(time(NULL)); \
for (int i = 0; i < src_height; ++i) \
for (int j = 0; j < src_width; ++j) \
src_y[(i * src_height) + j] = (random() & 0xff); \
for (int i = 0; i < src_height >> 1; ++i) \
for (int j = 0; j < src_width >> 1; ++j) { \
src_u[(i * src_height >> 1) + j] = (random() & 0xff); \
src_v[(i * src_height >> 1) + j] = (random() & 0xff); \
} \
MaskCpuFlags(kCpuInitialized); \
I420To##FMT(src_y, src_width, \
src_u, src_width >> 1, \
src_v, src_width >> 1, \
dst_rgb_c, src_width << 2, \
src_width, src_height); \
MaskCpuFlags(-1); \
I420To##FMT(src_y, src_width, \
src_u, src_width >> 1, \
src_v, src_width >> 1, \
dst_rgb_opt, src_width << 2, \
src_width, src_height); \
int err = 0; \
for (int i = 0; i < src_height; ++i) { \
for (int j = 0; j < src_width << 2; ++j) { \
int diff = static_cast<int>(dst_rgb_c[i * src_height + j]) - \
static_cast<int>(dst_rgb_opt[i * src_height + j]); \
if (abs(diff) > 2) \
err++; \
} \
} \
EXPECT_EQ(err, 0); \
free_aligned_buffer_16(src_y) \
free_aligned_buffer_16(src_u) \
free_aligned_buffer_16(src_v) \
free_aligned_buffer_16(dst_rgb_c) \
free_aligned_buffer_16(dst_rgb_opt) \
}
TESTI420TO(ARGB)
TESTI420TO(BGRA)
TESTI420TO(ABGR)
TEST_F(libyuvTest, TestAttenuate) {
SIMD_ALIGNED(uint8 orig_pixels[256][4]);
SIMD_ALIGNED(uint8 atten_pixels[256][4]);
SIMD_ALIGNED(uint8 unatten_pixels[256][4]);
SIMD_ALIGNED(uint8 atten2_pixels[256][4]);
// Test unattenuation clamps
orig_pixels[0][0] = 200u;
orig_pixels[0][1] = 129u;
orig_pixels[0][2] = 127u;
orig_pixels[0][3] = 128u;
// Test unattenuation transparent and opaque are unaffected
orig_pixels[1][0] = 16u;
orig_pixels[1][1] = 64u;
orig_pixels[1][2] = 192u;
orig_pixels[1][3] = 0u;
orig_pixels[2][0] = 16u;
orig_pixels[2][1] = 64u;
orig_pixels[2][2] = 192u;
orig_pixels[2][3] = 255u;
orig_pixels[3][0] = 16u;
orig_pixels[3][1] = 64u;
orig_pixels[3][2] = 192u;
orig_pixels[3][3] = 128u;
ARGBUnattenuate(&orig_pixels[0][0], 0, &unatten_pixels[0][0], 0, 4, 1);
EXPECT_EQ(255u, unatten_pixels[0][0]);
EXPECT_EQ(255u, unatten_pixels[0][1]);
EXPECT_EQ(254u, unatten_pixels[0][2]);
EXPECT_EQ(128u, unatten_pixels[0][3]);
EXPECT_EQ(16u, unatten_pixels[1][0]);
EXPECT_EQ(64u, unatten_pixels[1][1]);
EXPECT_EQ(192u, unatten_pixels[1][2]);
EXPECT_EQ(0u, unatten_pixels[1][3]);
EXPECT_EQ(16u, unatten_pixels[2][0]);
EXPECT_EQ(64u, unatten_pixels[2][1]);
EXPECT_EQ(192u, unatten_pixels[2][2]);
EXPECT_EQ(255u, unatten_pixels[2][3]);
EXPECT_EQ(32u, unatten_pixels[3][0]);
EXPECT_EQ(128u, unatten_pixels[3][1]);
EXPECT_EQ(255u, unatten_pixels[3][2]);
EXPECT_EQ(128u, unatten_pixels[3][3]);
for (int i = 0; i < 256; ++i) {
orig_pixels[i][0] = i;
orig_pixels[i][1] = i / 2;
orig_pixels[i][2] = i / 3;
orig_pixels[i][3] = i;
}
ARGBAttenuate(&orig_pixels[0][0], 0, &atten_pixels[0][0], 0, 256, 1);
ARGBUnattenuate(&atten_pixels[0][0], 0, &unatten_pixels[0][0], 0, 256, 1);
for (int i = 0; i < 1000 * 1280 * 720 / 256; ++i) {
ARGBAttenuate(&unatten_pixels[0][0], 0, &atten2_pixels[0][0], 0, 256, 1);
}
for (int i = 0; i < 256; ++i) {
EXPECT_NEAR(atten_pixels[i][0], atten2_pixels[i][0], 2);
EXPECT_NEAR(atten_pixels[i][1], atten2_pixels[i][1], 2);
EXPECT_NEAR(atten_pixels[i][2], atten2_pixels[i][2], 2);
EXPECT_NEAR(atten_pixels[i][3], atten2_pixels[i][3], 2);
}
// Make sure transparent, 50% and opaque are fully accurate.
EXPECT_EQ(0, atten_pixels[0][0]);
EXPECT_EQ(0, atten_pixels[0][1]);
EXPECT_EQ(0, atten_pixels[0][2]);
EXPECT_EQ(0, atten_pixels[0][3]);
EXPECT_EQ(64, atten_pixels[128][0]);
EXPECT_EQ(32, atten_pixels[128][1]);
EXPECT_EQ(21, atten_pixels[128][2]);
EXPECT_EQ(128, atten_pixels[128][3]);
EXPECT_EQ(255, atten_pixels[255][0]);
EXPECT_EQ(127, atten_pixels[255][1]);
EXPECT_EQ(85, atten_pixels[255][2]);
EXPECT_EQ(255, atten_pixels[255][3]);
}
TEST_F(libyuvTest, TestAddRow) {
SIMD_ALIGNED(uint8 orig_pixels[256]);
SIMD_ALIGNED(uint16 added_pixels[256]);
libyuv::AddRow AddRow = GetAddRow(added_pixels, 256);
libyuv::AddRow SubRow = GetSubRow(added_pixels, 256);
for (int i = 0; i < 256; ++i) {
orig_pixels[i] = i;
}
memset(added_pixels, 0, sizeof(uint16) * 256);
AddRow(orig_pixels, added_pixels, 256);
EXPECT_EQ(7u, added_pixels[7]);
EXPECT_EQ(250u, added_pixels[250]);
AddRow(orig_pixels, added_pixels, 256);
EXPECT_EQ(14u, added_pixels[7]);
EXPECT_EQ(500u, added_pixels[250]);
SubRow(orig_pixels, added_pixels, 256);
EXPECT_EQ(7u, added_pixels[7]);
EXPECT_EQ(250u, added_pixels[250]);
for (int i = 0; i < 1000 * (1280 * 720 * 4 / 256); ++i) {
AddRow(orig_pixels, added_pixels, 256);
}
}
}
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