#include "yuv.h" | |
void | |
yuv_sv411_to_cl422dc(int invert, void *data, void *yuv, int width, int height) | |
{ | |
struct yuv411 *in = data; | |
struct yuv422 *out_even = yuv; | |
struct yuv422 *out_odd = out_even + width / 2; | |
int i, j; /* counters */ | |
for (i = height / 2; i--; ) { | |
for (j = width / 4; j--; ) { | |
YUV422_Y0(*out_even) = YUV411_Y00(*in); | |
YUV422_U0(*out_even) = YUV411_U00(*in); | |
YUV422_V0(*out_even) = YUV411_V00(*in); | |
YUV422_Y1(*out_even) = YUV411_Y01(*in); | |
out_even++; | |
YUV422_Y0(*out_even) = YUV411_Y02(*in); | |
YUV422_U0(*out_even) = YUV411_U02(*in); | |
YUV422_V0(*out_even) = YUV411_V02(*in); | |
YUV422_Y1(*out_even) = YUV411_Y03(*in); | |
out_even++; | |
YUV422_Y0(*out_odd) = YUV411_Y10(*in); | |
YUV422_U0(*out_odd) = YUV411_U10(*in); | |
YUV422_V0(*out_odd) = YUV411_V10(*in); | |
YUV422_Y1(*out_odd) = YUV411_Y11(*in); | |
out_odd++; | |
YUV422_Y0(*out_odd) = YUV411_Y12(*in); | |
YUV422_U0(*out_odd) = YUV411_U12(*in); | |
YUV422_V0(*out_odd) = YUV411_V12(*in); | |
YUV422_Y1(*out_odd) = YUV411_Y13(*in); | |
out_odd++; | |
in++; | |
} | |
out_even += width / 2; | |
out_odd += width / 2; | |
} | |
} | |
void | |
yuv_sv411_to_cl422dc_quartersize(int invert, void *data, void *yuv, | |
int width, int height) | |
{ | |
int w4 = width / 4; /* quarter of width is used often */ | |
struct yuv411 *in_even = data; | |
struct yuv411 *in_odd = in_even + w4; | |
struct yuv422 *out_even = yuv; | |
struct yuv422 *out_odd = out_even + w4; | |
int i, j; /* counters */ | |
int u, v; /* U and V values */ | |
for (i = height / 4; i--; ) { | |
for (j = w4; j--; ) { | |
u = YUV411_U00(*in_even); | |
v = YUV411_V00(*in_even); | |
YUV422_Y0(*out_even) = YUV411_Y00(*in_even); | |
YUV422_U0(*out_even) = u; | |
YUV422_V0(*out_even) = v; | |
YUV422_Y1(*out_even) = YUV411_Y02(*in_even); | |
YUV422_Y0(*out_odd) = YUV411_Y10(*in_odd); | |
YUV422_U0(*out_odd) = u; | |
YUV422_V0(*out_odd) = v; | |
YUV422_Y1(*out_odd) = YUV411_Y12(*in_odd); | |
in_even++; | |
in_odd++; | |
out_even++; | |
out_odd++; | |
} | |
in_even += w4; | |
in_odd += w4; | |
out_even += w4; | |
out_odd += w4; | |
} | |
} | |
void | |
yuv_sv411_to_cl422dc_sixteenthsize(int invert, void *data, void *yuv, | |
int width, int height) | |
{ | |
int w4_3 = 3 * width / 4; /* three quarters of width is used often */ | |
int w8 = width / 8; /* and so is one eighth */ | |
struct yuv411 *in_even = data; | |
struct yuv411 *in_odd = in_even + width / 2; | |
struct yuv422 *out_even = yuv; | |
struct yuv422 *out_odd = out_even + w8; | |
int i, j; /* counters */ | |
int u, v; /* U and V values */ | |
for (i = height / 8; i--; ) { | |
for (j = w8; j--; ) { | |
u = YUV411_U00(in_even[0]); | |
v = YUV411_V00(in_even[0]); | |
YUV422_Y0(*out_even) = YUV411_Y00(in_even[0]); | |
YUV422_U0(*out_even) = u; | |
YUV422_V0(*out_even) = v; | |
YUV422_Y1(*out_even) = YUV411_Y00(in_even[1]); | |
YUV422_Y0(*out_odd) = YUV411_Y00(in_odd[0]); | |
YUV422_U0(*out_odd) = u; | |
YUV422_V0(*out_odd) = v; | |
YUV422_Y1(*out_odd) = YUV411_Y00(in_even[1]); | |
in_even += 2; | |
in_odd += 2; | |
out_even++; | |
out_odd++; | |
} | |
in_even += w4_3; | |
in_odd += w4_3; | |
out_even += w8; | |
out_odd += w8; | |
} | |
} |