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The ClutterColor conformance test should have a unit for verifying the RGB<->HLS conversion code, especially the ability to roundtrip between the two colorspaces.
141 lines
3.8 KiB
C
141 lines
3.8 KiB
C
#include <stdio.h>
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#include <clutter/clutter.h>
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#include "test-conform-common.h"
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void
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test_color_hls_roundtrip (TestConformSimpleFixture *fixture,
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gconstpointer data)
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{
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ClutterColor color;
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gfloat hue, luminance, saturation;
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/* test luminance only */
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clutter_color_from_string (&color, "#7f7f7f");
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g_assert_cmpint (color.red, ==, 0x7f);
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g_assert_cmpint (color.green, ==, 0x7f);
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g_assert_cmpint (color.blue, ==, 0x7f);
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clutter_color_to_hls (&color, &hue, &luminance, &saturation);
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g_assert_cmpfloat (hue, ==, 0.0);
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g_assert (luminance >= 0.0 && luminance <= 1.0);
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g_assert_cmpfloat (saturation, ==, 0.0);
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if (g_test_verbose ())
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{
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g_print ("RGB = { %x, %x, %x }, HLS = { %.2f, %.2f, %.2f }\n",
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color.red,
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color.green,
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color.blue,
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hue,
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luminance,
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saturation);
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}
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color.red = color.green = color.blue = 0;
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clutter_color_from_hls (&color, hue, luminance, saturation);
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g_assert_cmpint (color.red, ==, 0x7f);
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g_assert_cmpint (color.green, ==, 0x7f);
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g_assert_cmpint (color.blue, ==, 0x7f);
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/* full conversion */
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clutter_color_from_string (&color, "#7f8f7f");
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color.alpha = 255;
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g_assert_cmpint (color.red, ==, 0x7f);
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g_assert_cmpint (color.green, ==, 0x8f);
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g_assert_cmpint (color.blue, ==, 0x7f);
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clutter_color_to_hls (&color, &hue, &luminance, &saturation);
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g_assert (hue >= 0.0 && hue < 360.0);
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g_assert (luminance >= 0.0 && luminance <= 1.0);
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g_assert (saturation >= 0.0 && saturation <= 1.0);
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if (g_test_verbose ())
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{
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g_print ("RGB = { %x, %x, %x }, HLS = { %.2f, %.2f, %.2f }\n",
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color.red,
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color.green,
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color.blue,
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hue,
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luminance,
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saturation);
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}
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color.red = color.green = color.blue = 0;
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clutter_color_from_hls (&color, hue, luminance, saturation);
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g_assert_cmpint (color.red, ==, 0x7f);
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g_assert_cmpint (color.green, ==, 0x8f);
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g_assert_cmpint (color.blue, ==, 0x7f);
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/* the alpha channel should be untouched */
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g_assert_cmpint (color.alpha, ==, 255);
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}
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void
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test_color_from_string (TestConformSimpleFixture *fixture,
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gconstpointer data)
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{
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ClutterColor color;
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clutter_color_from_string (&color, "#ff0000ff");
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if (g_test_verbose ())
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{
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g_print ("color = { %x, %x, %x, %x }, expected = { 0xff, 0, 0, 0xff }\n",
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color.red,
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color.green,
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color.blue,
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color.alpha);
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}
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g_assert (color.red == 0xff);
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g_assert (color.green == 0);
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g_assert (color.blue == 0);
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g_assert (color.alpha == 0xff);
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clutter_color_from_string (&color, "#0f0f");
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if (g_test_verbose ())
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{
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g_print ("color = { %x, %x, %x, %x }, expected = { 0, 0xff, 0, 0xff }\n",
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color.red,
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color.green,
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color.blue,
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color.alpha);
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}
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g_assert (color.red == 0);
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g_assert (color.green == 0xff);
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g_assert (color.blue == 0);
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g_assert (color.alpha == 0xff);
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clutter_color_from_string (&color, "#0000ff");
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if (g_test_verbose ())
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{
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g_print ("color = { %x, %x, %x, %x }, expected = { 0, 0, 0xff, 0xff }\n",
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color.red,
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color.green,
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color.blue,
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color.alpha);
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}
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g_assert (color.red == 0);
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g_assert (color.green == 0);
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g_assert (color.blue == 0xff);
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g_assert (color.alpha == 0xff);
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}
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void
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test_color_to_string (TestConformSimpleFixture *fixture,
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gconstpointer data)
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{
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ClutterColor color;
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gchar *str;
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color.red = 0xcc;
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color.green = 0xcc;
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color.blue = 0xcc;
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color.alpha = 0x22;
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str = clutter_color_to_string (&color);
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g_assert_cmpstr (str, ==, "#cccccc22");
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g_free (str);
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}
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