[gnome-builder] gstyle: add blindness color filters
- From: Sébastien Lafargue <slafargue src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-builder] gstyle: add blindness color filters
- Date: Sun, 24 Jul 2016 15:39:05 +0000 (UTC)
commit ce2b13909dea385cf74c99281cce4822bf253a7f
Author: Sebastien Lafargue <slafargue gnome org>
Date: Sun Jul 24 17:17:49 2016 +0200
gstyle: add blindness color filters
contrib/gstyle/gstyle-color-filter.c | 210 +++++++++++++++++++++++++++++++++-
contrib/gstyle/gstyle-color-filter.h | 32 +++++
contrib/gstyle/gstyle-color-panel.c | 32 +++++
3 files changed, 270 insertions(+), 4 deletions(-)
---
diff --git a/contrib/gstyle/gstyle-color-filter.c b/contrib/gstyle/gstyle-color-filter.c
index 547a3b5..2a5adfb 100644
--- a/contrib/gstyle/gstyle-color-filter.c
+++ b/contrib/gstyle/gstyle-color-filter.c
@@ -21,13 +21,71 @@
static gdouble web_colors [] = {0.0, 0.2, 0.2, 0.4, 0.4 , 0.6 , 0.6, 0.8, 0.8, 1.0, 1.0};
#define TO_WEB_COLOR(x) (web_colors [(gint)(x * 10.0)])
+/* http://web.archive.org/web/20081014161121/http://www.colorjack.com/labs/colormatrix/ */
+static gdouble blindness [][9] =
+{
+ /* achromatopsia */
+ { 0.299, 0.587, 0.114, 0.299, 0.587, 0.114, 0.299, 0.587, 0.114 },
+ /* achromatomaly */
+ { 0.618, 0.32, 0.062, 0.163, 0.775, 0.062, 0.163, 0.32, 0.516 },
+ /* deuteranopia */
+ { 0.625, 0.375, 0.0, 0.7, 0.3, 0.0, 0.0, 0.3, 0.7 },
+ /* deuteranomaly */
+ { 0.80, 0.20, 0.0, 0.25833, 0.74167, 0.0, 0.0, 0.14167, 0.85833 },
+ /* protanopia */
+ { 0.56667, 0.43333, 0.0, 0.55833, 0.44167, 0.0, 0.0, 0.24167, 0.75833 },
+ /* protanomaly */
+ { 0.81667, 0.18333, 0.0, 0.33333, 0.66667, 0.0, 0.0, 0.125, 0.875 },
+ /* tritanopia */
+ { 0.950, 0.50, 0.0, 0.0, 0.43333, 0.56667, 0.0, 0.475, 0.525 },
+ /* tritanomaly */
+ { 0.96667, 0.3333, 0.0, 0.0, 0.73333, 0.26667, 0.0, 0.18333, 0.81667 },
+};
+
+typedef enum
+{
+ BLINDNESS_KIND_ACHROMATOPSIA,
+ BLINDNESS_KIND_ACHROMATOMALY,
+ BLINDNESS_KIND_DEUTERANOPIA,
+ BLINDNESS_KIND_DEUTERANOMALY,
+ BLINDNESS_KIND_PROTANOPIA,
+ BLINDNESS_KIND_PROTANOMALY,
+ BLINDNESS_KIND_TRITANOPIA,
+ BLINDNESS_KIND_TRITANOMALY
+} BlindnessKind;
+
+static inline void
+blindness_convert (GdkRGBA *src_rgba,
+ GdkRGBA *dst_rgba,
+ BlindnessKind kind)
+{
+ GdkRGBA rgba;
+ gdouble *base = &blindness [kind][0];
+
+ rgba.red = src_rgba->red * base [0] + src_rgba->green * base [1] + src_rgba->blue * base [2];
+ rgba.green = src_rgba->red * base [3] + src_rgba->green * base [4] + src_rgba->blue * base [5];
+ rgba.blue = src_rgba->red * base [6] + src_rgba->green * base [7] + src_rgba->blue * base [8];
+
+ if (rgba.red > 1.0)
+ rgba.red = 1.0;
+
+ if (rgba.green > 1.0)
+ rgba.green = 1.0;
+
+ if (rgba.blue > 1.0)
+ rgba.blue = 1.0;
+
+ rgba.alpha = src_rgba->alpha;
+ *dst_rgba = rgba;
+}
+
/**
- * gstyle_color_filter_func:
+ * gstyle_color_filter_websafe:
* @rgba: The source #GdkRGBA color
* @filter_rgba: (out): the filtered #GdkRGBA color
* @user_data: A user data pointer
*
- * A WebSafe Color filter usable with #GstyleColorScale and GstyleColorPlane.
+ * A WebSafe color filter usable with #GstyleColorScale and GstyleColorPlane.
*
*/
void
@@ -41,13 +99,157 @@ gstyle_color_filter_websafe (GdkRGBA *rgba,
filter_rgba->alpha = rgba->alpha;
}
+/**
+ * gstyle_color_filter_achromatopsia:
+ * @rgba: The source #GdkRGBA color
+ * @filter_rgba: (out): the filtered #GdkRGBA color
+ * @user_data: A user data pointer
+ *
+ * A achromatopsia (color agnosia) color filter usable with #GstyleColorScale and GstyleColorPlane.
+ *
+ */
+void
+gstyle_color_filter_achromatopsia (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data)
+{
+ blindness_convert (rgba, filter_rgba, BLINDNESS_KIND_ACHROMATOPSIA);
+}
+
+/**
+ * gstyle_color_filter_achromatomaly:
+ * @rgba: The source #GdkRGBA color
+ * @filter_rgba: (out): the filtered #GdkRGBA color
+ * @user_data: A user data pointer
+ *
+ * A achromatomaly (Blue Cone Monochromacy) color filter usable with #GstyleColorScale and GstyleColorPlane.
+ *
+ */
+void
+gstyle_color_filter_achromatomaly (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data)
+{
+ blindness_convert (rgba, filter_rgba, BLINDNESS_KIND_ACHROMATOMALY);
+}
+
+/**
+ * gstyle_color_filter_deuteranopia:
+ * @rgba: The source #GdkRGBA color
+ * @filter_rgba: (out): the filtered #GdkRGBA color
+ * @user_data: A user data pointer
+ *
+ * A deuteranopia (green-blind) color filter usable with #GstyleColorScale and GstyleColorPlane.
+ *
+ */
+void
+gstyle_color_filter_deuteranopia (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data)
+{
+ blindness_convert (rgba, filter_rgba, BLINDNESS_KIND_DEUTERANOPIA);
+}
+
+/**
+ * gstyle_color_filter_deuteranomaly:
+ * @rgba: The source #GdkRGBA color
+ * @filter_rgba: (out): the filtered #GdkRGBA color
+ * @user_data: A user data pointer
+ *
+ * A deuteranomaly (green-weak) color filter usable with #GstyleColorScale and GstyleColorPlane.
+ *
+ */
+void
+gstyle_color_filter_deuteranomaly (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data)
+{
+ blindness_convert (rgba, filter_rgba, BLINDNESS_KIND_DEUTERANOMALY);
+}
+
+/**
+ * gstyle_color_filter_protanopia:
+ * @rgba: The source #GdkRGBA color
+ * @filter_rgba: (out): the filtered #GdkRGBA color
+ * @user_data: A user data pointer
+ *
+ * A protanopia (red-blind) color filter usable with #GstyleColorScale and GstyleColorPlane.
+ *
+ */
+void
+gstyle_color_filter_protanopia (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data)
+{
+ blindness_convert (rgba, filter_rgba, BLINDNESS_KIND_PROTANOPIA);
+}
+
+/**
+ * gstyle_color_filter_protanomaly:
+ * @rgba: The source #GdkRGBA color
+ * @filter_rgba: (out): the filtered #GdkRGBA color
+ * @user_data: A user data pointer
+ *
+ * A protanomaly (red-weak) color filter usable with #GstyleColorScale and GstyleColorPlane.
+ *
+ */
+void
+gstyle_color_filter_protanomaly (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data)
+{
+ blindness_convert (rgba, filter_rgba, BLINDNESS_KIND_PROTANOMALY);
+}
+
+/**
+ * gstyle_color_filter_tritanopia:
+ * @rgba: The source #GdkRGBA color
+ * @filter_rgba: (out): the filtered #GdkRGBA color
+ * @user_data: A user data pointer
+ *
+ * A tritanopia (blue-blind) color filter usable with #GstyleColorScale and GstyleColorPlane.
+ *
+ */
+void
+gstyle_color_filter_tritanopia (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data)
+{
+ blindness_convert (rgba, filter_rgba, BLINDNESS_KIND_TRITANOPIA);
+}
+
+/**
+ * gstyle_color_filter_tritanomaly:
+ * @rgba: The source #GdkRGBA color
+ * @filter_rgba: (out): the filtered #GdkRGBA color
+ * @user_data: A user data pointer
+ *
+ * A tritanomaly (blue-weak) color filter usable with #GstyleColorScale and GstyleColorPlane.
+ *
+ */
+void
+gstyle_color_filter_tritanomaly (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data)
+{
+ blindness_convert (rgba, filter_rgba, BLINDNESS_KIND_TRITANOMALY);
+}
+
GType
gstyle_color_filter_get_type (void)
{
static GType filter_type_id;
static const GEnumValue values[] = {
- { GSTYLE_COLOR_FILTER_NONE, "GSTYLE_COLOR_FILTER_NONE", "none" },
- { GSTYLE_COLOR_FILTER_WEBSAFE, "GSTYLE_COLOR_FILTER_WEBSAFE", "websafe" },
+ { GSTYLE_COLOR_FILTER_NONE, "GSTYLE_COLOR_FILTER_NONE", "none" },
+ { GSTYLE_COLOR_FILTER_ACHROMATOPSIA, "GSTYLE_COLOR_FILTER_ACHROMATOPSIA", "achromatopsia" },
+ { GSTYLE_COLOR_FILTER_ACHROMATOMALY, "GSTYLE_COLOR_FILTER_ACHROMATOMALY", "achromatomaly" },
+ { GSTYLE_COLOR_FILTER_DEUTERANOPIA, "GSTYLE_COLOR_FILTER_DEUTERANOPIA", "deuteranopia" },
+ { GSTYLE_COLOR_FILTER_DEUTERANOMALY, "GSTYLE_COLOR_FILTER_DEUTERANOMALY", "deuteranomaly" },
+ { GSTYLE_COLOR_FILTER_PROTANOPIA, "GSTYLE_COLOR_FILTER_PROTANOPIA", "protanopia" },
+ { GSTYLE_COLOR_FILTER_PROTANOMALY, "GSTYLE_COLOR_FILTER_PROTANOMALY", "protanomaly" },
+ { GSTYLE_COLOR_FILTER_TRITANOPIA, "GSTYLE_COLOR_FILTER_TRITANOPIA", "tritanopia" },
+ { GSTYLE_COLOR_FILTER_TRITANOMALY, "GSTYLE_COLOR_FILTER_TRITANOMALY", "tritanomaly" },
+ { GSTYLE_COLOR_FILTER_WEBSAFE, "GSTYLE_COLOR_FILTER_WEBSAFE", "websafe" },
{ 0 }
};
diff --git a/contrib/gstyle/gstyle-color-filter.h b/contrib/gstyle/gstyle-color-filter.h
index d72ed40..d202fb4 100644
--- a/contrib/gstyle/gstyle-color-filter.h
+++ b/contrib/gstyle/gstyle-color-filter.h
@@ -31,11 +31,43 @@ typedef void (*GstyleColorFilterFunc)(GdkRGBA *rgba, GdkRGBA *filter_rgba, gpoin
typedef enum
{
GSTYLE_COLOR_FILTER_NONE,
+ GSTYLE_COLOR_FILTER_ACHROMATOPSIA,
+ GSTYLE_COLOR_FILTER_ACHROMATOMALY,
+ GSTYLE_COLOR_FILTER_DEUTERANOPIA,
+ GSTYLE_COLOR_FILTER_DEUTERANOMALY,
+ GSTYLE_COLOR_FILTER_PROTANOPIA,
+ GSTYLE_COLOR_FILTER_PROTANOMALY,
+ GSTYLE_COLOR_FILTER_TRITANOPIA,
+ GSTYLE_COLOR_FILTER_TRITANOMALY,
GSTYLE_COLOR_FILTER_WEBSAFE
} GstyleColorFilter;
GType gstyle_color_filter_get_type (void);
+void gstyle_color_filter_achromatopsia (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data);
+void gstyle_color_filter_achromatomaly (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data);
+void gstyle_color_filter_deuteranopia (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data);
+void gstyle_color_filter_deuteranomaly (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data);
+void gstyle_color_filter_protanopia (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data);
+void gstyle_color_filter_protanomaly (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data);
+void gstyle_color_filter_tritanopia (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data);
+void gstyle_color_filter_tritanomaly (GdkRGBA *rgba,
+ GdkRGBA *filter_rgba,
+ gpointer user_data);
void gstyle_color_filter_websafe (GdkRGBA *rgba,
GdkRGBA *filter_rgba,
gpointer user_data);
diff --git a/contrib/gstyle/gstyle-color-panel.c b/contrib/gstyle/gstyle-color-panel.c
index 815ac2e..ba95125 100644
--- a/contrib/gstyle/gstyle-color-panel.c
+++ b/contrib/gstyle/gstyle-color-panel.c
@@ -194,6 +194,38 @@ gstyle_color_panel_set_filter (GstyleColorPanel *self,
filter_func = NULL;
break;
+ case GSTYLE_COLOR_FILTER_ACHROMATOPSIA:
+ filter_func = gstyle_color_filter_achromatopsia;
+ break;
+
+ case GSTYLE_COLOR_FILTER_ACHROMATOMALY:
+ filter_func = gstyle_color_filter_achromatomaly;
+ break;
+
+ case GSTYLE_COLOR_FILTER_DEUTERANOPIA:
+ filter_func = gstyle_color_filter_deuteranopia;
+ break;
+
+ case GSTYLE_COLOR_FILTER_DEUTERANOMALY:
+ filter_func = gstyle_color_filter_deuteranomaly;
+ break;
+
+ case GSTYLE_COLOR_FILTER_PROTANOPIA:
+ filter_func = gstyle_color_filter_protanopia;
+ break;
+
+ case GSTYLE_COLOR_FILTER_PROTANOMALY:
+ filter_func = gstyle_color_filter_protanomaly;
+ break;
+
+ case GSTYLE_COLOR_FILTER_TRITANOPIA:
+ filter_func = gstyle_color_filter_tritanopia;
+ break;
+
+ case GSTYLE_COLOR_FILTER_TRITANOMALY:
+ filter_func = gstyle_color_filter_tritanomaly;
+ break;
+
case GSTYLE_COLOR_FILTER_WEBSAFE:
filter_func = gstyle_color_filter_websafe;
break;
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