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Evas filters: Fix padding with "blend" 

Test case was:
buffer : a (alpha);
blur (20, dst = a);
blend (src = a, ox = 30);

In that case, padding was 20, 30, 20, 20.
So the blurred buffer was clipped on screen.
This commit is contained in:
Jean-Philippe Andre 2014-02-17 20:19:02 +09:00
parent 3819bc7abb
commit ded097461d
1 changed files with 10 additions and 6 deletions
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16
src/lib/evas/filters/evas_filter_parser.c
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@ -917,22 +917,26 @@ static void
_blend_padding_update(Evas_Filter_Program *pgm, Evas_Filter_Instruction *instr,
int *padl, int *padr, int *padt, int *padb)
{
const char *outbuf;
Buffer *out;
const char *inbuf, *outbuf;
Buffer *in, *out;
int ox, oy, l = 0, r = 0, t = 0, b = 0;
ox = _instruction_param_geti(instr, "ox", NULL);
oy = _instruction_param_geti(instr, "oy", NULL);
inbuf = _instruction_param_gets(instr, "src", NULL);
in = _buffer_get(pgm, inbuf);
EINA_SAFETY_ON_NULL_RETURN(in);
outbuf = _instruction_param_gets(instr, "dst", NULL);
out = _buffer_get(pgm, outbuf);
EINA_SAFETY_ON_NULL_RETURN(out);
if (ox < 0) l = (-ox);
else r = ox;
if (ox < 0) l = (-ox) + in->pad.l;
else r = ox + in->pad.r;
if (oy < 0) t = (-oy);
else b = oy;
if (oy < 0) t = (-oy) + in->pad.t;
else b = oy + in->pad.b;
if (out->pad.l < l) out->pad.l = l;
if (out->pad.r < r) out->pad.r = r;