967cb56275
There is no need to e.g. blur in the x-direction for the top part of a box shadow. Also, there is no need to extend the mask in the non-blurred direction. https://bugzilla.gnome.org/show_bug.cgi?id=746468
55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
/* -*- mode: C; c-basic-offset: 2; indent-tabs-mode: nil; -*- */
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#include <gtk/gtkcairoblurprivate.h>
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static void
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init_surface (cairo_t *cr)
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{
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int w = cairo_image_surface_get_width (cairo_get_target (cr));
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int h = cairo_image_surface_get_height (cairo_get_target (cr));
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_fill (cr);
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_arc (cr, w/2, h/2, w/2, 0, 2*G_PI);
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cairo_fill (cr);
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}
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int
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main (int argc, char **argv)
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{
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cairo_surface_t *surface;
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cairo_t *cr;
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GTimer *timer;
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double msec;
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int i, j;
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int size;
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timer = g_timer_new ();
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size = 2000;
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surface = cairo_image_surface_create (CAIRO_FORMAT_A8, size, size);
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cr = cairo_create (surface);
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/* We do everything three times, first two as warmup */
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for (j = 0; j < 2; j++)
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{
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for (i = 1; i < 16; i++)
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{
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init_surface (cr);
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g_timer_start (timer);
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_gtk_cairo_blur_surface (surface, i, GTK_BLUR_X | GTK_BLUR_Y);
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msec = g_timer_elapsed (timer, NULL) * 1000;
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if (j == 1)
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g_print ("Radius %2d: %.2f msec, %.2f kpixels/msec:\n", i, msec, size*size/(msec*1000));
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}
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}
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g_timer_destroy (timer);
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return 0;
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}
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