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{
int srx = src_region_x, sry = src_region_y;
int srw = src_region_w, srh = src_region_h;
int drx = dst_region_x, dry = dst_region_y;
int drw = dst_region_w, drh = dst_region_h;
int dsxx, dsyy, sxx, syy, sx, sy;
int cx, cy;
int direct_scale = 0, buf_step = 0;
DATA32 *psrc, *pdst, *pdst_end;
DATA32 *buf, *pbuf, *pbuf_end;
RGBA_Gfx_Func func = NULL;
/* check value to make overflow(only check value related with overflow) */
if ((src_region_w > SCALE_SIZE_MAX) ||
(src_region_h > SCALE_SIZE_MAX)) return;
/* a scanline buffer */
pdst = dst_ptr; // it's been set at (dst_clip_x, dst_clip_y)
pdst_end = pdst + (dst_clip_h * dst_w);
if (!dc->mul.use)
{
if ((dc->render_op == _EVAS_RENDER_BLEND) && !src->cache_entry.flags.alpha)
{ direct_scale = 1; buf_step = dst->cache_entry.w; }
else if (dc->render_op == _EVAS_RENDER_COPY)
{
direct_scale = 1; buf_step = dst->cache_entry.w;
if (src->cache_entry.flags.alpha)
dst->cache_entry.flags.alpha = 1;
}
}
if (!direct_scale)
{
buf = alloca(dst_clip_w * sizeof(DATA32));
if (dc->mul.use)
func = evas_common_gfx_func_composite_pixel_color_span_get(src, dc->mul.col, dst, dst_clip_w, dc->render_op);
else
func = evas_common_gfx_func_composite_pixel_span_get(src, dst, dst_clip_w, dc->render_op);
}
else
buf = pdst;
if ((srw > 1) && (drw > 1))
dsxx = ((srw - 1) << 16) / (drw - 1);
else
dsxx = (srw << 16) / drw;
if ((srh > 1) && (drh > 1))
dsyy = ((srh - 1) << 16) / (drh - 1);
else
dsyy = (srh << 16) / drh;
cx = dst_clip_x - drx;
cy = dst_clip_y - dry;
sxx = (dsxx * cx);
syy = (dsyy * cy);
sy = syy >> 16;
if (drh == srh)
{
int sxx0 = sxx;
#ifdef EVAS_SLI
int ysli = dst_clip_y;
#endif
psrc = src->image.data + (src_w * (sry + cy)) + srx;
while (pdst < pdst_end)
{
#ifdef EVAS_SLI
if (((ysli) % dc->sli.h) == dc->sli.y)
#endif
{
pbuf = buf; pbuf_end = buf + dst_clip_w;
sxx = sxx0;
#ifdef SCALE_USING_MMX
pxor_r2r(mm0, mm0);
MOV_A2R(ALPHA_255, mm5)
#endif
while (pbuf < pbuf_end)
{
DATA32 p0, p1;
int ax;
sx = (sxx >> 16);
ax = 1 + ((sxx - (sx << 16)) >> 8);
p0 = p1 = *(psrc + sx);
if ((sx + 1) < srw)
p1 = *(psrc + sx + 1);
#ifdef SCALE_USING_MMX
MOV_P2R(p0, mm1, mm0)
if (p0 | p1)
{
MOV_A2R(ax, mm3)
MOV_P2R(p1, mm2, mm0)
INTERP_256_R2R(mm3, mm2, mm1, mm5)
}
MOV_R2P(mm1, *pbuf, mm0)
pbuf++;
#else
if (p0 | p1)
p0 = INTERP_256(ax, p1, p0);
*pbuf++ = p0;
#endif
sxx += dsxx;
}
/* * blend here [clip_w *] buf -> dptr * */
if (!direct_scale)
func(buf, NULL, dc->mul.col, pdst, dst_clip_w);
}
#ifdef EVAS_SLI
ysli++;
#endif
pdst += dst_w;
psrc += src_w;
buf += buf_step;
}
goto done_scale_up;
}
else if (drw == srw)
{
DATA32 *ps = src->image.data + (src_w * sry) + srx + cx;
#ifdef EVAS_SLI
int ysli = dst_clip_y;
#endif
while (pdst < pdst_end)
{
#ifdef EVAS_SLI
if (((ysli) % dc->sli.h) == dc->sli.y)
#endif
{
int ay;
sy = syy >> 16;
psrc = ps + (sy * src_w);
ay = 1 + ((syy - (sy << 16)) >> 8);
#ifdef SCALE_USING_MMX
pxor_r2r(mm0, mm0);
MOV_A2R(ALPHA_255, mm5)
MOV_A2R(ay, mm4)
#endif
pbuf = buf; pbuf_end = buf + dst_clip_w;
while (pbuf < pbuf_end)
{
DATA32 p0 = *psrc, p2 = p0;
if ((sy + 1) < srh)
p2 = *(psrc + src_w);
#ifdef SCALE_USING_MMX
MOV_P2R(p0, mm1, mm0)
if (p0 | p2)
{
MOV_P2R(p2, mm2, mm0)
INTERP_256_R2R(mm4, mm2, mm1, mm5)
}
MOV_R2P(mm1, *pbuf, mm0)
pbuf++;
#else
if (p0 | p2)
p0 = INTERP_256(ay, p2, p0);
*pbuf++ = p0;
#endif
psrc++;
}
/* * blend here [clip_w *] buf -> dptr * */
if (!direct_scale)
func(buf, NULL, dc->mul.col, pdst, dst_clip_w);
}
#ifdef EVAS_SLI
ysli++;
#endif
pdst += dst_w;
syy += dsyy;
buf += buf_step;
}
goto done_scale_up;
}
{
DATA32 *ps = src->image.data + (src_w * sry) + srx;
int sxx0 = sxx;
#ifdef EVAS_SLI
int ysli = dst_clip_y;
#endif
while (pdst < pdst_end)
{
#ifdef EVAS_SLI
if (((ysli) % dc->sli.h) == dc->sli.y)
#endif
{
int ay;
sy = syy >> 16;
psrc = ps + (sy * src_w);
ay = 1 + ((syy - (sy << 16)) >> 8);
#ifdef SCALE_USING_MMX
MOV_A2R(ay, mm4)
pxor_r2r(mm0, mm0);
MOV_A2R(ALPHA_255, mm5)
#endif
pbuf = buf; pbuf_end = buf + dst_clip_w;
sxx = sxx0;
while (pbuf < pbuf_end)
{
int ax;
DATA32 *p, *q;
DATA32 p0, p1, p2, p3;
sx = sxx >> 16;
ax = 1 + ((sxx - (sx << 16)) >> 8);
p = psrc + sx; q = p + src_w;
p0 = p1 = p2 = p3 = *p;
if ((sx + 1) < srw)
p1 = *(p + 1);
if ((sy + 1) < srh)
{
p2 = *q; p3 = p2;
if ((sx + 1) < srw)
p3 = *(q + 1);
}
#ifdef SCALE_USING_MMX
MOV_A2R(ax, mm6)
MOV_P2R(p0, mm1, mm0)
if (p0 | p1)
{
MOV_P2R(p1, mm2, mm0)
INTERP_256_R2R(mm6, mm2, mm1, mm5)
}
MOV_P2R(p2, mm2, mm0)
if (p2 | p3)
{
MOV_P2R(p3, mm3, mm0)
INTERP_256_R2R(mm6, mm3, mm2, mm5)
}
INTERP_256_R2R(mm4, mm2, mm1, mm5)
MOV_R2P(mm1, *pbuf, mm0)
pbuf++;
#else
if (p0 | p1)
p0 = INTERP_256(ax, p1, p0);
if (p2 | p3)
p2 = INTERP_256(ax, p3, p2);
if (p0 | p2)
p0 = INTERP_256(ay, p2, p0);
*pbuf++ = p0;
#endif
sxx += dsxx;
}
/* * blend here [clip_w *] buf -> dptr * */
if (!direct_scale)
func(buf, NULL, dc->mul.col, pdst, dst_clip_w);
}
#ifdef EVAS_SLI
ysli++;
#endif
pdst += dst_w;
syy += dsyy;
buf += buf_step;
}
}
done_scale_up:
return;
}
|
