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libfreerdp-primitives: add more YCbCr test coefficients

This commit is contained in:
Marc-André Moreau 2014-09-08 15:47:03 -04:00
parent e21202ee61
commit 81454c1171
1 changed files with 21 additions and 11 deletions
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32
libfreerdp/primitives/test/TestPrimitivesYCbCr.c
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@ -2151,8 +2151,11 @@ static void test_fill_bitmap_blue_channel(BYTE* data, int width, int height, BYT
} }
} }
static float TEST_YCbCrToRGB_01[4] = { 1.403f, 0.344f, 0.714f, 1.770f }; #define TEST_FP_TYPE float
static float TEST_YCbCrToRGB_02[4] = { 1.402525f, 0.343730f, 0.714401f, 1.769905f };
static TEST_FP_TYPE TEST_YCbCrToRGB_01[4] = { 1.403f, 0.344f, 0.714f, 1.770f };
static TEST_FP_TYPE TEST_YCbCrToRGB_02[4] = { 1.402525f, 0.343730f, 0.714401f, 1.769905f };
static TEST_FP_TYPE TEST_YCbCrToRGB_03[4] = { 1.402524948120117L, 0.3437300026416779L, 0.7144010066986084L, 1.769904971122742L };
static INT16 TEST_YCbCr_01[3] = { +115, +1720, -2145 }; static INT16 TEST_YCbCr_01[3] = { +115, +1720, -2145 };
static BYTE TEST_RGB_01[3] = { 37, 161, 227 }; /* incorrect red */ static BYTE TEST_RGB_01[3] = { 37, 161, 227 }; /* incorrect red */
@ -2163,14 +2166,14 @@ static BYTE TEST_RGB_02[3] = { 21, 140, 221 }; /* incorrect green */
static INT16 TEST_YCbCr_03[3] = { -504, +1896, -2168 }; static INT16 TEST_YCbCr_03[3] = { -504, +1896, -2168 };
static BYTE TEST_RGB_03[3] = { 17, 140, 217 }; /* incorrect blue */ static BYTE TEST_RGB_03[3] = { 17, 140, 217 }; /* incorrect blue */
int test_YCbCr_fp(float coeffs[4], INT16 YCbCr[3], BYTE RGB[3]) int test_YCbCr_fp(TEST_FP_TYPE coeffs[4], INT16 YCbCr[3], BYTE RGB[3])
{ {
INT16 R, G, B; INT16 R, G, B;
float Y, Cb, Cr; TEST_FP_TYPE Y, Cb, Cr;
Y = (float) (YCbCr[0] + 4096); Y = (TEST_FP_TYPE) (YCbCr[0] + 4096);
Cb = (float) (YCbCr[1]); Cb = (TEST_FP_TYPE) (YCbCr[1]);
Cr = (float) (YCbCr[2]); Cr = (TEST_FP_TYPE) (YCbCr[2]);
R = ((INT16) (((Cr * coeffs[0]) + Y + 16.0f)) >> 5); R = ((INT16) (((Cr * coeffs[0]) + Y + 16.0f)) >> 5);
G = ((INT16) ((Y - (Cb * coeffs[1]) - (Cr * coeffs[2]) + 16.0f)) >> 5); G = ((INT16) ((Y - (Cb * coeffs[1]) - (Cr * coeffs[2]) + 16.0f)) >> 5);
@ -2196,10 +2199,10 @@ int test_YCbCr_fp(float coeffs[4], INT16 YCbCr[3], BYTE RGB[3])
printf("G: A: %3d E: %3d %s\n", G, RGB[1], (G == RGB[1]) ? "" : "***"); printf("G: A: %3d E: %3d %s\n", G, RGB[1], (G == RGB[1]) ? "" : "***");
printf("B: A: %3d E: %3d %s\n", B, RGB[2], (B == RGB[2]) ? "" : "***"); printf("B: A: %3d E: %3d %s\n", B, RGB[2], (B == RGB[2]) ? "" : "***");
printf("Y: %+5d Cb: %+5d Cr: %+5d\n", YCbCr[0], YCbCr[1], YCbCr[2]); printf("Y: %+5d Cb: %+5d Cr: %+5d\n", YCbCr[0], YCbCr[1], YCbCr[2]);
printf("[0]: %20.16f\n", coeffs[0]); //printf("[0]: %20.20lf\n", coeffs[0]);
printf("[1]: %20.16f\n", coeffs[1]); //printf("[1]: %20.20lf\n", coeffs[1]);
printf("[2]: %20.16f\n", coeffs[2]); //printf("[2]: %20.20lf\n", coeffs[2]);
printf("[3]: %20.16f\n", coeffs[3]); //printf("[3]: %20.20lf\n", coeffs[3]);
printf("--------------------------------\n"); printf("--------------------------------\n");
return 0; return 0;
@ -2221,6 +2224,13 @@ int test_YCbCr_pixels()
test_YCbCr_fp(TEST_YCbCrToRGB_02, TEST_YCbCr_03, TEST_RGB_03); test_YCbCr_fp(TEST_YCbCrToRGB_02, TEST_YCbCr_03, TEST_RGB_03);
} }
if (0)
{
test_YCbCr_fp(TEST_YCbCrToRGB_03, TEST_YCbCr_01, TEST_RGB_01);
test_YCbCr_fp(TEST_YCbCrToRGB_03, TEST_YCbCr_02, TEST_RGB_02);
test_YCbCr_fp(TEST_YCbCrToRGB_03, TEST_YCbCr_03, TEST_RGB_03);
}
return 0; return 0;
} }