add cairo

1 files changed, 203 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/pixman-downscale.c b/libs/cairo-1.16.0/test/pixman-downscale.c
new file mode 100644
index 0000000..6b653d2
--- /dev/null
+++ b/libs/cairo-1.16.0/test/pixman-downscale.c
@@ -0,0 +1,203 @@
+/*
+ * Copyright © 2013 Samsung Electronics
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Author: Bryce Harrington <b.harrington@samsung.com>
+ */
+
+/* This test exercises scaling a png image to smaller pixel dimensions
+ *
+ * Currently, this exercises several of pixman's scaling filters.
+ */
+
+#include "cairo-test.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <cairo.h>
+
+static const char png_filename[] = "quad-color.png";
+
+/* Draw an image scaled down, with antialiasing disabled */
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height, cairo_filter_t filter)
+{
+    const cairo_test_context_t *ctx = cairo_test_get_context (cr);
+    cairo_surface_t *image;
+    double x_scale, y_scale, scale;
+
+    cairo_set_source_rgb (cr, 1, 1, 1);
+    image = cairo_test_create_surface_from_png (ctx, png_filename);
+    x_scale = width * 1.0 / cairo_image_surface_get_width (image);
+    y_scale = height * 1.0 / cairo_image_surface_get_height (image);
+    scale = x_scale < y_scale ? x_scale : y_scale;
+
+    cairo_save (cr);
+    cairo_scale (cr, scale, scale);
+    cairo_set_source_surface (cr, image, 0, 0);
+    cairo_pattern_set_filter (cairo_get_source (cr), filter);
+    cairo_paint (cr);
+    cairo_restore (cr);
+    cairo_surface_destroy (image);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+static cairo_test_status_t
+draw_fast (cairo_t *cr, int width, int height)
+{
+  return draw (cr, width, height, CAIRO_FILTER_FAST);
+}
+
+static cairo_test_status_t
+draw_good (cairo_t *cr, int width, int height)
+{
+  return draw (cr, width, height, CAIRO_FILTER_GOOD);
+}
+
+static cairo_test_status_t
+draw_best (cairo_t *cr, int width, int height)
+{
+  return draw (cr, width, height, CAIRO_FILTER_BEST);
+}
+
+static cairo_test_status_t
+draw_nearest (cairo_t *cr, int width, int height)
+{
+  return draw (cr, width, height, CAIRO_FILTER_NEAREST);
+}
+
+static cairo_test_status_t
+draw_bilinear (cairo_t *cr, int width, int height)
+{
+  return draw (cr, width, height, CAIRO_FILTER_BILINEAR);
+}
+
+CAIRO_TEST (pixman_downscale_fast_96,
+	    "Tests scaling to equivalent size using the fast filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    96, 96,
+	    NULL, draw_fast)
+
+CAIRO_TEST (pixman_downscale_fast_95,
+	    "Tests downscaling by a single pixel using the fast filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    95, 95,
+	    NULL, draw_fast)
+
+CAIRO_TEST (pixman_downscale_fast_24,
+	    "Tests downscaling by an even multiple using the fast filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    24, 24,
+	    NULL, draw_fast)
+
+
+CAIRO_TEST (pixman_downscale_good_96,
+	    "Tests scaling to equivalent size using the good filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    96, 96,
+	    NULL, draw_good)
+
+CAIRO_TEST (pixman_downscale_good_95,
+	    "Tests downscaling by a single pixel using the good filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    95, 95,
+	    NULL, draw_good)
+
+CAIRO_TEST (pixman_downscale_good_24,
+	    "Tests downscaling by an even multiple using the good filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    24, 24,
+	    NULL, draw_good)
+
+
+CAIRO_TEST (pixman_downscale_best_96,
+	    "Tests scaling to equivalent size using the best filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    96, 96,
+	    NULL, draw_best)
+
+CAIRO_TEST (pixman_downscale_best_95,
+	    "Tests downscaling by a single pixel using the best filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    95, 95,
+	    NULL, draw_best)
+
+CAIRO_TEST (pixman_downscale_best_24,
+	    "Tests downscaling by an even multiple using the best filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    24, 24,
+	    NULL, draw_best)
+
+
+CAIRO_TEST (pixman_downscale_nearest_96,
+	    "Tests scaling to equivalent size using the nearest filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    96, 96,
+	    NULL, draw_nearest)
+
+CAIRO_TEST (pixman_downscale_nearest_95,
+	    "Tests downscaling by a single pixel using the nearest filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    95, 95,
+	    NULL, draw_nearest)
+
+CAIRO_TEST (pixman_downscale_nearest_24,
+	    "Tests downscaling by an even multiple using the nearest filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    24, 24,
+	    NULL, draw_nearest)
+
+
+CAIRO_TEST (pixman_downscale_bilinear_96,
+	    "Tests scaling to equivalent size using the bilinear filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    96, 96,
+	    NULL, draw_bilinear)
+
+CAIRO_TEST (pixman_downscale_bilinear_95,
+	    "Tests downscaling by a single pixel using the bilinear filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    95, 95,
+	    NULL, draw_bilinear)
+
+CAIRO_TEST (pixman_downscale_bilinear_24,
+	    "Tests downscaling by an even multiple using the bilinear filter",
+	    "image, transform, raster, downscale", /* keywords */
+	    NULL, /* requirements */
+	    24, 24,
+	    NULL, draw_bilinear)