257 lines
5.9 KiB
C
257 lines
5.9 KiB
C
{
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int Cx, Cy, i, j;
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DATA32 *dptr, *sptr, *pix, *pbuf;
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int a, r, g, b, rx, gx, bx, ax;
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int xap, yap, pos;
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int dyy, dxx;
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DATA32 **yp;
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int *xp;
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int w = dst_clip_w;
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dptr = dst_ptr;
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pos = (src_region_y * src_w) + src_region_x;
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dyy = dst_clip_y - dst_region_y;
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dxx = dst_clip_x - dst_region_x;
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xp = xpoints + dxx;
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yp = ypoints + dyy;
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xapp = xapoints + dxx;
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yapp = yapoints + dyy;
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pbuf = buf;
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/*#ifndef SCALE_USING_MMX */
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/* for now there's no mmx down scaling - so C only */
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#if 1
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if (src->flags & RGBA_IMAGE_HAS_ALPHA)
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{
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while (dst_clip_h--)
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{
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Cy = *yapp >> 16;
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yap = *yapp & 0xffff;
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while (dst_clip_w--)
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{
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Cx = *xapp >> 16;
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xap = *xapp & 0xffff;
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sptr = *yp + *xp + pos;
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pix = sptr;
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sptr += src_w;
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ax = (A_VAL(pix) * xap) >> 9;
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rx = (R_VAL(pix) * xap) >> 9;
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gx = (G_VAL(pix) * xap) >> 9;
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bx = (B_VAL(pix) * xap) >> 9;
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pix++;
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for (i = (1 << 14) - xap; i > Cx; i -= Cx)
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{
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ax += (A_VAL(pix) * Cx) >> 9;
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rx += (R_VAL(pix) * Cx) >> 9;
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gx += (G_VAL(pix) * Cx) >> 9;
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bx += (B_VAL(pix) * Cx) >> 9;
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pix++;
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}
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if (i > 0)
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{
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ax += (A_VAL(pix) * i) >> 9;
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rx += (R_VAL(pix) * i) >> 9;
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gx += (G_VAL(pix) * i) >> 9;
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bx += (B_VAL(pix) * i) >> 9;
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}
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a = (ax * yap) >> 14;
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r = (rx * yap) >> 14;
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g = (gx * yap) >> 14;
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b = (bx * yap) >> 14;
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for (j = (1 << 14) - yap; j > Cy; j -= Cy)
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{
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pix = sptr;
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sptr += src_w;
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ax = (A_VAL(pix) * xap) >> 9;
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rx = (R_VAL(pix) * xap) >> 9;
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gx = (G_VAL(pix) * xap) >> 9;
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bx = (B_VAL(pix) * xap) >> 9;
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pix++;
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for (i = (1 << 14) - xap; i > Cx; i -= Cx)
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{
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ax += (A_VAL(pix) * Cx) >> 9;
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rx += (R_VAL(pix) * Cx) >> 9;
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gx += (G_VAL(pix) * Cx) >> 9;
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bx += (B_VAL(pix) * Cx) >> 9;
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pix++;
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}
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if (i > 0)
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{
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ax += (A_VAL(pix) * i) >> 9;
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rx += (R_VAL(pix) * i) >> 9;
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gx += (G_VAL(pix) * i) >> 9;
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bx += (B_VAL(pix) * i) >> 9;
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}
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a += (ax * Cy) >> 14;
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r += (rx * Cy) >> 14;
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g += (gx * Cy) >> 14;
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b += (bx * Cy) >> 14;
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}
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if (j > 0)
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{
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pix = sptr;
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sptr += src_w;
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ax = (A_VAL(pix) * xap) >> 9;
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rx = (R_VAL(pix) * xap) >> 9;
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gx = (G_VAL(pix) * xap) >> 9;
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bx = (B_VAL(pix) * xap) >> 9;
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pix++;
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for (i = (1 << 14) - xap; i > Cx; i -= Cx)
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{
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ax += (A_VAL(pix) * Cx) >> 9;
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rx += (R_VAL(pix) * Cx) >> 9;
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gx += (G_VAL(pix) * Cx) >> 9;
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bx += (B_VAL(pix) * Cx) >> 9;
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pix++;
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}
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if (i > 0)
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{
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ax += (A_VAL(pix) * i) >> 9;
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rx += (R_VAL(pix) * i) >> 9;
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gx += (G_VAL(pix) * i) >> 9;
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bx += (B_VAL(pix) * i) >> 9;
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}
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a += (ax * j) >> 14;
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r += (rx * j) >> 14;
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g += (gx * j) >> 14;
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b += (bx * j) >> 14;
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}
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*pbuf++ = ARGB_JOIN(a >> 5, r >> 5, g >> 5, b >> 5);
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xp++; xapp++;
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}
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if (dc->mod.use)
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func_cmod(buf, dptr, w, dc->mod.r, dc->mod.g, dc->mod.b, dc->mod.a);
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else if (dc->mul.use)
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func_mul(buf, dptr, w, dc->mul.col);
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else
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func(buf, dptr, w);
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pbuf = buf;
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dptr += dst_w; dst_clip_w = w;
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xp = xpoints + dxx;
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xapp = xapoints + dxx;
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yp++; yapp++;
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}
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}
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else
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{
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while (dst_clip_h--)
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{
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Cy = *yapp >> 16;
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yap = *yapp & 0xffff;
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while (dst_clip_w--)
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{
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Cx = *xapp >> 16;
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xap = *xapp & 0xffff;
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sptr = *yp + *xp + pos;
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pix = sptr;
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sptr += src_w;
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rx = (R_VAL(pix) * xap) >> 9;
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gx = (G_VAL(pix) * xap) >> 9;
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bx = (B_VAL(pix) * xap) >> 9;
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pix++;
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for (i = (1 << 14) - xap; i > Cx; i -= Cx)
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{
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rx += (R_VAL(pix) * Cx) >> 9;
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gx += (G_VAL(pix) * Cx) >> 9;
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bx += (B_VAL(pix) * Cx) >> 9;
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pix++;
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}
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if (i > 0)
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{
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rx += (R_VAL(pix) * i) >> 9;
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gx += (G_VAL(pix) * i) >> 9;
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bx += (B_VAL(pix) * i) >> 9;
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}
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r = (rx * yap) >> 14;
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g = (gx * yap) >> 14;
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b = (bx * yap) >> 14;
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for (j = (1 << 14) - yap; j > Cy; j -= Cy)
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{
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pix = sptr;
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sptr += src_w;
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rx = (R_VAL(pix) * xap) >> 9;
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gx = (G_VAL(pix) * xap) >> 9;
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bx = (B_VAL(pix) * xap) >> 9;
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pix++;
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for (i = (1 << 14) - xap; i > Cx; i -= Cx)
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{
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rx += (R_VAL(pix) * Cx) >> 9;
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gx += (G_VAL(pix) * Cx) >> 9;
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bx += (B_VAL(pix) * Cx) >> 9;
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pix++;
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}
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if (i > 0)
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{
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rx += (R_VAL(pix) * i) >> 9;
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gx += (G_VAL(pix) * i) >> 9;
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bx += (B_VAL(pix) * i) >> 9;
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}
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r += (rx * Cy) >> 14;
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g += (gx * Cy) >> 14;
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b += (bx * Cy) >> 14;
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}
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if (j > 0)
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{
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pix = sptr;
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sptr += src_w;
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rx = (R_VAL(pix) * xap) >> 9;
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gx = (G_VAL(pix) * xap) >> 9;
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bx = (B_VAL(pix) * xap) >> 9;
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pix++;
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for (i = (1 << 14) - xap; i > Cx; i -= Cx)
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{
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rx += (R_VAL(pix) * Cx) >> 9;
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gx += (G_VAL(pix) * Cx) >> 9;
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bx += (B_VAL(pix) * Cx) >> 9;
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pix++;
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}
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if (i > 0)
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{
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rx += (R_VAL(pix) * i) >> 9;
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gx += (G_VAL(pix) * i) >> 9;
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bx += (B_VAL(pix) * i) >> 9;
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}
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r += (rx * j) >> 14;
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g += (gx * j) >> 14;
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b += (bx * j) >> 14;
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}
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*pbuf++ = ARGB_JOIN(0xff, r >> 5, g >> 5, b >> 5);
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xp++; xapp++;
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}
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if (dc->mod.use)
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func_cmod(buf, dptr, w, dc->mod.r, dc->mod.g, dc->mod.b, dc->mod.a);
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else if (dc->mul.use)
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func_mul(buf, dptr, w, dc->mul.col);
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else
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func(buf, dptr, w);
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pbuf = buf;
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dptr += dst_w; dst_clip_w = w;
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xp = xpoints + dxx;
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xapp = xapoints + dxx;
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yp++; yapp++;
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}
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}
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#else
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/* MMX scaling down would go here */
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#endif
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}
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