232 lines
5.8 KiB
C
232 lines
5.8 KiB
C
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{
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int Cx, Cy, i, j;
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DATA32 *pix;
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int a, r, g, b, rx, gx, bx, ax;
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int xap, yap;
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int sow;
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int dyy, dxx;
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dptr = dst_ptr;
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sow = src->image->w;
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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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/*#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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for (y = 0; y < dst_clip_h; y++)
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{
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Cy = YAP >> 16;
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yap = YAP & 0xffff;
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for (x = 0; x < dst_clip_w; x++)
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{
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Cx = XAP >> 16;
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xap = XAP & 0xffff;
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sptr = ypoints[dyy + y] + xpoints[dxx + x] + (src_region_y * sow) + src_region_x;
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pix = sptr;
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sptr += sow;
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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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ax = (A_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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ax += (A_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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ax += (A_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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a = (ax * 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 += sow;
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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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ax = (A_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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ax += (A_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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ax += (A_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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a += (ax * 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 += sow;
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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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ax = (A_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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ax += (A_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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ax += (A_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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a += (ax * j) >> 14;
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}
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buf[x] = RGBA_COMPOSE(r >> 5, g >> 5, b >> 5, a >> 5);
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}
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if (dc->mod.use)
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func_cmod(buf, dptr, dst_clip_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, dst_clip_w, dc->mul.col);
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else
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func(buf, dptr, dst_clip_w);
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dptr += dst_w;
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}
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}
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else
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{
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for (y = 0; y < dst_clip_h; y++)
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{
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Cy = YAP >> 16;
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yap = YAP & 0xffff;
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for (x = 0; x < dst_clip_w; x++)
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{
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Cx = XAP >> 16;
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xap = XAP & 0xffff;
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sptr = ypoints[dyy + y] + xpoints[dxx + x] + (src_region_y * sow) + src_region_x;
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pix = sptr;
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sptr += sow;
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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 += sow;
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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 += sow;
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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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buf[x] = RGBA_COMPOSE(r >> 5, g >> 5, b >> 5, 0xff);
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}
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if (dc->mod.use)
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func_cmod(buf, dptr, dst_clip_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, dst_clip_w, dc->mul.col);
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else
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func(buf, dptr, dst_clip_w);
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dptr += dst_w;
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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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