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/* The Unico Theming Engine for Gtk+.
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* Copyright (C) 2009 Canonical Ltd
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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* Authored by Mirco "MacSlow" Mueller <mirco.mueller@canonical.com>
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#include "exponential-blur.h"
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#include "raico-blur.h"
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struct _raico_blur_private_t
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raico_blur_quality_t quality; /* low, medium, high */
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guint radius; /* blur-radius */
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raico_blur_create (void)
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raico_blur_t* blur = NULL;
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raico_blur_private_t* priv = NULL;
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blur = g_new0 (raico_blur_t, 1);
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g_debug ("raico_blur_create(): could not allocate blur struct");
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priv = g_new0 (raico_blur_private_t, 1);
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g_debug ("raico_blur_create(): could not allocate priv struct");
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g_free ((gpointer) blur);
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priv->quality = RAICO_BLUR_QUALITY_LOW;
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raico_blur_get_quality (raico_blur_t* blur)
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g_assert (blur != NULL);
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return blur->priv->quality;
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raico_blur_set_quality (raico_blur_t* blur,
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raico_blur_quality_t quality)
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g_debug ("raico_blur_set_quality(): NULL blur-pointer passed");
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blur->priv->quality = quality;
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raico_blur_get_radius (raico_blur_t* blur)
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g_assert (blur != NULL);
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return blur->priv->radius;
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raico_blur_set_radius (raico_blur_t* blur,
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g_debug ("raico_blur_set_radius(): NULL blur-pointer passed");
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blur->priv->radius = radius;
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raico_blur_apply (raico_blur_t* blur,
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cairo_surface_t* surface)
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cairo_format_t format;
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g_debug ("raico_blur_apply(): NULL blur-pointer passed");
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g_debug ("raico_blur_apply(): NULL surface-pointer passed");
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if (cairo_surface_status (surface) != CAIRO_STATUS_SUCCESS)
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g_debug ("raico_blur_apply(): invalid surface status");
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if (cairo_surface_get_type (surface) != CAIRO_SURFACE_TYPE_IMAGE)
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g_debug ("raico_blur_apply(): non-image surface passed");
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format = cairo_image_surface_get_format (surface);
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if (format != CAIRO_FORMAT_A8 &&
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format != CAIRO_FORMAT_RGB24 &&
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format != CAIRO_FORMAT_ARGB32)
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g_debug ("raico_blur_apply(): unsupported image-format");
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/* stupid, but you never know */
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if (blur->priv->radius == 0)
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/* now do the real work */
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switch (blur->priv->quality)
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case RAICO_BLUR_QUALITY_HIGH:
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case RAICO_BLUR_QUALITY_MEDIUM:
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/* Not implemented yet */
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//surface_gaussian_blur (surface, blur->priv->radius);
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case RAICO_BLUR_QUALITY_LOW:
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surface_exponential_blur (surface, blur->priv->radius);
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raico_blur_destroy (raico_blur_t* blur)
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g_debug ("raico_blur_destroy(): invalid blur-pointer passed");
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g_free ((gpointer) blur->priv);
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g_free ((gpointer) blur);