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@ -452,3 +452,82 @@ DEFUN(yuv2rgb24_line,MEM, |
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unlink;
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rts;
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DEFUN_END(yuv2rgb888_line) |
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#define ARG_vdst 20 |
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#define ARG_width 24 |
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#define ARG_height 28 |
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#define ARG_lumStride 32 |
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#define ARG_chromStride 36 |
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#define ARG_srcStride 40 |
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DEFUN(uyvytoyv12, mL3, (const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, |
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long width, long height, |
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long lumStride, long chromStride, long srcStride)): |
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link 0;
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[--sp] = (r7:4,p5:4);
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p0 = r1; // Y top even
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i2 = r2; // *u
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r2 = [fp + ARG_vdst];
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i3 = r2; // *v
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r1 = [fp + ARG_srcStride];
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r2 = r0 + r1;
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r1 += -16;
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m0 = r1;
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i0 = r0; // uyvy_T even
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i1 = r2; // uyvy_B odd
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r2 = [fp + ARG_chromStride];
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m1 = r2;
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p2 = [fp + ARG_lumStride];
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p1 = p0 + p2; // Y bot odd
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p2 += -4;
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p5 = [fp + ARG_width];
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p4 = [fp + ARG_height];
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p4 = p4 >> 1;
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p5 = p5 >> 2;
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r6.l = w[i2--]; r6.l = w[i2];
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r6.h = w[i3--]; r6.h = w[i3];
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/* I0,I1 - src input line pointers |
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* p0,p1 - luma output line pointers |
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* I2 - dstU |
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* I3 - dstV |
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*/ |
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lsetup (0f, 1f) lc0 = p4;
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0: lsetup (2f, 3f) lc1 = p5;
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r0 = [i0++] || r2 = [i1++];
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r1 = [i0++] || r3 = [i1++];
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2: r4 = byteop1p(r1:0, r3:2) || w[i2++] = r6.l;
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r5 = byteop1p(r1:0, r3:2) (r) || w[i3++] = r6.h;
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r0 = r0 >> 8(v);
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r1 = r1 >> 8(v);
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r2 = r2 >> 8(v);
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r3 = r3 >> 8(v);
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r0 = bytepack(r0, r1);
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r2 = bytepack(r2, r3) || [p0++] = r0;
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r6 = pack(r5.l, r4.l) || [p1++] = r2;
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r7 = pack(r5.h, r4.h) || r0 = [i0++] || r2 = [i1++];
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3: r6 = bytepack(r6, r7) || r1 = [i0++] || r3 = [i1++];
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i0 += m0;
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i1 += m0;
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p0 = p0 + p2;
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1: p1 = p1 + p2;
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w[i2++] = r6.l;
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w[i3++] = r6.h;
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(r7:4,p5:4) = [sp++];
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unlink;
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rts;
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DEFUN_END(uyvytoyv12) |
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