efl/legacy/evas/src/lib/engines/common/evas_scale_smooth_scaler_do...

44 lines
1.5 KiB
C

{
DATA32 **ypoints;
int *xpoints;
int *xapoints, *xapp;
int *yapoints, *yapp;
DATA32 *buf, *src_data;
RGBA_Gfx_Func func;
src_data = src->image.data;
/* some maximum region sizes to avoid insane calc point tables */
SCALE_CALC_X_POINTS(xpoints, src_region_w, dst_region_w, dst_clip_x - dst_region_x, dst_clip_w);
SCALE_CALC_Y_POINTS(ypoints, src_data, src_w, src_region_h, dst_region_h, dst_clip_y - dst_region_y, dst_clip_h);
SCALE_CALC_A_POINTS(xapoints, src_region_w, dst_region_w, dst_clip_x - dst_region_x, dst_clip_w);
SCALE_CALC_A_POINTS(yapoints, src_region_h, dst_region_h, dst_clip_y - dst_region_y, dst_clip_h);
/* a scanline buffer */
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);
/* scaling down vertically */
if ((dst_region_w >= src_region_w) &&
(dst_region_h < src_region_h))
{
#include "evas_scale_smooth_scaler_downy.c"
}
/* scaling down horizontally */
else if ((dst_region_w < src_region_w) &&
(dst_region_h >= src_region_h))
{
#include "evas_scale_smooth_scaler_downx.c"
}
/* scaling down both vertically & horizontally */
else if ((dst_region_w < src_region_w) &&
(dst_region_h < src_region_h))
{
#include "evas_scale_smooth_scaler_downx_downy.c"
}
}