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Add test for color accuracy of J422ToARGB

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BUG=414
TESTED=libyuvTest.TestFullYUVJ
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/41309004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1329 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2015-03-16 18:47:42 +00:00
parent f2fad0faa5
commit bfba8e41c4
1 changed files with 83 additions and 5 deletions
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88
unit_test/color_test.cc
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@ -135,8 +135,8 @@ TEST_F(libyuvTest, TESTNAME) { \
TESTCS(TestI420, I420ToARGB, ARGBToI420, 1, 2, benchmark_width_,
ERROR_FULL, MAX_CDIFF)
TESTCS(TestI422, I422ToARGB, ARGBToI422, 0, 1, 0, ERROR_FULL, MAX_CDIFF)
TESTCS(TestJ420, J420ToARGB, ARGBToJ420, 1, 2, benchmark_width_, 3, 0)
TESTCS(TestJ422, J422ToARGB, ARGBToJ422, 0, 1, 0, 4, 0)
TESTCS(TestJ420, J420ToARGB, ARGBToJ420, 1, 2, benchmark_width_, 1, 0)
TESTCS(TestJ422, J422ToARGB, ARGBToJ422, 0, 1, 0, 1, 0)
static void YUVToRGB(int y, int u, int v, int* r, int* g, int* b) {
const int kWidth = 16;
@ -164,6 +164,32 @@ static void YUVToRGB(int y, int u, int v, int* r, int* g, int* b) {
*r = orig_pixels[2];
}
static void YUVJToRGB(int y, int u, int v, int* r, int* g, int* b) {
const int kWidth = 16;
const int kHeight = 1;
const int kPixels = kWidth * kHeight;
const int kHalfPixels = ((kWidth + 1) / 2) * ((kHeight + 1) / 2);
SIMD_ALIGNED(uint8 orig_y[16]);
SIMD_ALIGNED(uint8 orig_u[8]);
SIMD_ALIGNED(uint8 orig_v[8]);
SIMD_ALIGNED(uint8 orig_pixels[16 * 1 * 4]);
memset(orig_y, y, kPixels);
memset(orig_u, u, kHalfPixels);
memset(orig_v, v, kHalfPixels);
/* YUV converted to ARGB. */
J422ToARGB(orig_y, kWidth,
orig_u, (kWidth + 1) / 2,
orig_v, (kWidth + 1) / 2,
orig_pixels, kWidth * 4,
kWidth, kHeight);
*b = orig_pixels[0];
*g = orig_pixels[1];
*r = orig_pixels[2];
}
static void YToRGB(int y, int* r, int* g, int* b) {
const int kWidth = 16;
const int kHeight = 1;
@ -291,9 +317,15 @@ TEST_F(libyuvTest, TestRoundToByte) {
}
static void YUVToRGBReference(int y, int u, int v, int* r, int* g, int* b) {
*r = RoundToByte((y - 16) * 1.164 + (v - 128) * 1.596);
*g = RoundToByte((y - 16) * 1.164 + (u - 128) * -0.391 + (v - 128) * -0.813);
*b = RoundToByte((y - 16) * 1.164 + (u - 128) * 2.018);
*r = RoundToByte((y - 16) * 1.164 - (v - 128) * -1.596);
*g = RoundToByte((y - 16) * 1.164 - (u - 128) * 0.391 - (v - 128) * 0.813);
*b = RoundToByte((y - 16) * 1.164 - (u - 128) * -2.018);
}
static void YUVJToRGBReference(int y, int u, int v, int* r, int* g, int* b) {
*r = RoundToByte(y - (v - 128) * -1.40200);
*g = RoundToByte(y - (u - 128) * 0.34414 - (v - 128) * 0.71414);
*b = RoundToByte(y - (u - 128) * -1.77200);
}
TEST_F(libyuvTest, TestYUV) {
@ -438,4 +470,50 @@ TEST_F(libyuvTest, TestFullYUV) {
printf("\n");
}
TEST_F(libyuvTest, TestFullYUVJ) {
int i;
int rh[256] = { 0, }, gh[256] = { 0, }, bh[256] = { 0, };
for (int u = 0; u < 256; ++u) {
for (int v = 0; v < 256; ++v) {
for (int y2 = 0; y2 < 256; ++y2) {
int r0, g0, b0, r1, g1, b1;
int y = RANDOM256(y2);
YUVJToRGBReference(y, u, v, &r0, &g0, &b0);
YUVJToRGB(y, u, v, &r1, &g1, &b1);
EXPECT_NEAR(r0, r1, 1);
EXPECT_NEAR(g0, g1, 1);
EXPECT_NEAR(b0, b1, 1);
++rh[r1 - r0 + 128];
++gh[g1 - g0 + 128];
++bh[b1 - b0 + 128];
}
}
}
printf("hist\t");
for (i = 0; i < 256; ++i) {
if (rh[i] || gh[i] || bh[i]) {
printf("\t%8d", i - 128);
}
}
printf("\nred\t");
for (i = 0; i < 256; ++i) {
if (rh[i] || gh[i] || bh[i]) {
printf("\t%8d", rh[i]);
}
}
printf("\ngreen\t");
for (i = 0; i < 256; ++i) {
if (rh[i] || gh[i] || bh[i]) {
printf("\t%8d", gh[i]);
}
}
printf("\nblue\t");
for (i = 0; i < 256; ++i) {
if (rh[i] || gh[i] || bh[i]) {
printf("\t%8d", bh[i]);
}
}
printf("\n");
}
} // namespace libyuv