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