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Evas filters: Fix blur with src == dst 

If dst == src, then we should not blend back to the buffer,
as we actually want to blur the content and not keep the sharp
version.
This commit is contained in:
Jean-Philippe Andre 2014-03-25 15:57:01 +09:00
parent 27d97110cc
commit b045feefb1
1 changed files with 5 additions and 2 deletions
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7
src/lib/evas/filters/evas_filter.c
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@ -851,7 +851,7 @@ evas_filter_temporary_buffer_get(Evas_Filter_Context *ctx, int w, int h,
buf = _buffer_new(ctx, w, h, alpha_only); buf = _buffer_new(ctx, w, h, alpha_only);
buf->locked = EINA_TRUE; buf->locked = EINA_TRUE;
DBG("Created temporary buffer: %d", buf->id); DBG("Created temporary buffer: %d (%s)", buf->id, alpha_only ? "Alpha" : "RGBA");
return buf; return buf;
} }
@ -934,6 +934,7 @@ evas_filter_command_blur_add(Evas_Filter_Context *ctx, void *drawctx,
goto fail; goto fail;
} }
if (in == out) out->dirty = EINA_FALSE;
blend = (out->dirty && !out->transient); blend = (out->dirty && !out->transient);
switch (type) switch (type)
@ -1017,7 +1018,9 @@ evas_filter_command_blur_add(Evas_Filter_Context *ctx, void *drawctx,
} }
else if (blend || (in->alpha_only && !out->alpha_only)) else if (blend || (in->alpha_only && !out->alpha_only))
{ {
DBG("Adding extra blending step (%s --> RGBA)", in->alpha_only ? "Alpha" : "RGBA"); DBG("Adding extra blending step %d --> %d (%s --> %s)", in->id, out->id,
in->alpha_only ? "Alpha" : "RGBA",
out->alpha_only ? "Alpha" : "RGBA");
blur_out = evas_filter_temporary_buffer_get(ctx, 0, 0, in->alpha_only); blur_out = evas_filter_temporary_buffer_get(ctx, 0, 0, in->alpha_only);
if (!blur_out) goto fail; if (!blur_out) goto fail;
blend = EINA_TRUE; blend = EINA_TRUE;