[gnome-photos/wip/rishi/edit-mode: 1/26] Add Instagram filters



commit deb235cc78184027883b9d6a3eec4a10af4aa03b
Author: Debarshi Ray <debarshir gnome org>
Date:   Wed May 27 10:44:57 2015 +0200

    Add Instagram filters
    
    Currently 1977, Brannan, Gotham and Nashville are implemented. The
    filters are provided by a meta-operation called photos:insta-filter
    which takes an enum specifying which one to apply. The hidden
    photos:insta-curve operation has the preset curves in terms of look-up
    tables.
    
    Based on:
    http://matthewruddy.github.io/jQuery-filter.me/
    https://github.com/jonnor/imgflo-server/tree/master/graphs

 src/Makefile.am                     |    7 +
 src/photos-enums.c.template         |    1 +
 src/photos-operation-insta-common.h |   38 ++
 src/photos-operation-insta-curve.c  |  765 +++++++++++++++++++++++++++++++++++
 src/photos-operation-insta-curve.h  |   45 ++
 src/photos-operation-insta-filter.c |  292 +++++++++++++
 src/photos-operation-insta-filter.h |   45 ++
 src/photos-utils.c                  |    5 +
 8 files changed, 1198 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 7c0538c..f32e9b3 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -147,6 +147,11 @@ gnome_photos_SOURCES = \
        photos-offset-overview-controller.h \
        photos-offset-search-controller.c \
        photos-offset-search-controller.h \
+       photos-operation-insta-common.h \
+       photos-operation-insta-curve.c \
+       photos-operation-insta-curve.h \
+       photos-operation-insta-filter.c \
+       photos-operation-insta-filter.h \
        photos-organize-collection-dialog.c \
        photos-organize-collection-dialog.h \
        photos-organize-collection-model.c \
@@ -398,6 +403,7 @@ stamp-photos-enums.h: photos-enums.h.template
                ( glib-mkenums \
                        --template $(srcdir)/photos-enums.h.template \
                         $(srcdir)/photos-mode-controller.h \
+                        $(srcdir)/photos-operation-insta-common.h \
                         $(srcdir)/photos-preview-nav-buttons.h \
                 ) >> xgen-etbh \
                && ( cmp -s xgen-etbh photos-enums.h || cp xgen-etbh photos-enums.h ) \
@@ -410,6 +416,7 @@ photos-enums.c: photos-enums.c.template
                ( glib-mkenums \
                        --template $(srcdir)/photos-enums.c.template \
                         $(srcdir)/photos-mode-controller.h \
+                        $(srcdir)/photos-operation-insta-common.h \
                         $(srcdir)/photos-preview-nav-buttons.h \
                 ) >> xgen-etbc \
                && ( cmp -s xgen-etbc photos-enums.c || cp xgen-etbc photos-enums.c ) \
diff --git a/src/photos-enums.c.template b/src/photos-enums.c.template
index 2033eca..de17c1d 100644
--- a/src/photos-enums.c.template
+++ b/src/photos-enums.c.template
@@ -4,6 +4,7 @@
 
 #include "photos-enums.h"
 #include "photos-mode-controller.h"
+#include "photos-operation-insta-common.h"
 #include "photos-preview-nav-buttons.h"
 
 /*** END file-header ***/
diff --git a/src/photos-operation-insta-common.h b/src/photos-operation-insta-common.h
new file mode 100644
index 0000000..c9af905
--- /dev/null
+++ b/src/photos-operation-insta-common.h
@@ -0,0 +1,38 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2015 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#ifndef PHOTOS_OPERATION_INSTA_COMMON_H
+#define PHOTOS_OPERATION_INSTA_COMMON_H
+
+G_BEGIN_DECLS
+
+typedef enum
+{
+  PHOTOS_OPERATION_INSTA_PRESET_NONE,
+  PHOTOS_OPERATION_INSTA_PRESET_1977,
+  PHOTOS_OPERATION_INSTA_PRESET_BRANNAN,
+  PHOTOS_OPERATION_INSTA_PRESET_GOTHAM,
+  PHOTOS_OPERATION_INSTA_PRESET_GRAY,
+  PHOTOS_OPERATION_INSTA_PRESET_NASHVILLE
+} PhotosOperationInstaPreset;
+
+G_END_DECLS
+
+#endif /* PHOTOS_OPERATION_INSTA_COMMON_H */
diff --git a/src/photos-operation-insta-curve.c b/src/photos-operation-insta-curve.c
new file mode 100644
index 0000000..b25b869
--- /dev/null
+++ b/src/photos-operation-insta-curve.c
@@ -0,0 +1,765 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2015 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+
+#include "config.h"
+
+#include <math.h>
+
+#include <babl/babl.h>
+#include <gegl.h>
+#include <gegl-plugin.h>
+
+#include "photos-enums.h"
+#include "photos-operation-insta-common.h"
+#include "photos-operation-insta-curve.h"
+
+
+struct _PhotosOperationInstaCurve
+{
+  GeglOperationPointFilter parent_instance;
+  PhotosOperationInstaPreset preset;
+};
+
+struct _PhotosOperationInstaCurveClass
+{
+  GeglOperationPointFilterClass parent_class;
+};
+
+enum
+{
+  PROP_0,
+  PROP_PRESET
+};
+
+
+G_DEFINE_TYPE (PhotosOperationInstaCurve, photos_operation_insta_curve, GEGL_TYPE_OPERATION_POINT_FILTER);
+
+
+static const guint8 NINE_A[] =
+{
+  0, 1, 3, 4, 6, 7, 9, 10, 12, 13, 14, 16, 17, 19, 20, 22, 23, 25, 26, 28, 29, 31, 32, 34, 35, 37, 38, 39, 
41, 42,
+  44, 45, 46, 48, 49, 50, 52, 53, 54, 55, 57, 58, 59, 60, 61, 62, 64, 65, 66, 67, 68, 69, 70, 72, 73, 74, 
75, 76,
+  77, 78, 79, 80, 81, 82, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 
103, 104,
+  105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 
125, 126,
+  127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 
146, 147,
+  148, 149, 150, 151, 152, 153, 153, 154, 155, 156, 157, 158, 159, 160, 160, 161, 162, 163, 164, 165, 166, 
166, 167,
+  168, 169, 170, 171, 172, 172, 173, 174, 175, 176, 177, 178, 178, 179, 180, 181, 182, 183, 183, 184, 185, 
186, 187,
+  188, 188, 189, 190, 191, 192, 193, 193, 194, 195, 196, 197, 198, 199, 199, 200, 201, 202, 203, 204, 204, 
205, 206,
+  207, 208, 209, 209, 210, 211, 212, 213, 214, 215, 215, 216, 217, 218, 219, 220, 221, 221, 222, 223, 224, 
225, 226,
+  227, 227, 228, 229, 230, 231, 232, 233, 233, 234, 235, 236, 237, 238, 239, 240, 241, 241, 242, 243, 244, 
245, 246,
+  247, 248, 249, 250, 250, 251, 252, 253, 254, 255, 255
+};
+
+static const guint8 NINE_R[] =
+{
+  58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 
58, 58,
+  58, 58, 58, 58, 59, 60, 60, 61, 62, 62, 63, 63, 64, 64, 65, 66, 66, 67, 67, 68, 69, 69, 70, 70, 71, 72, 
72, 73,
+  74, 74, 75, 76, 77, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 95, 96, 97, 98, 
99, 100,
+  102, 103, 104, 105, 106, 108, 109, 110, 111, 112, 113, 114, 116, 117, 118, 119, 120, 121, 122, 123, 125, 
126, 127,
+  128, 129, 130, 131, 133, 134, 135, 136, 137, 138, 140, 141, 142, 143, 144, 146, 147, 148, 149, 151, 152, 
153, 154,
+  156, 157, 158, 160, 161, 162, 164, 165, 166, 168, 169, 170, 172, 173, 175, 176, 177, 179, 180, 182, 183, 
185, 186,
+  188, 189, 191, 192, 193, 194, 196, 197, 198, 199, 200, 201, 202, 203, 204, 204, 205, 206, 206, 207, 208, 
208, 209,
+  209, 210, 210, 211, 211, 212, 212, 212, 213, 213, 213, 213, 213, 214, 214, 214, 214, 214, 214, 214, 214, 
214, 214,
+  215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 
215, 215,
+  215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 215, 214, 214, 214, 214, 214, 214, 214, 214, 
214, 214,
+  213, 213, 213, 213, 213, 213, 213, 212, 212, 212, 212, 212
+};
+
+static const guint8 NINE_G[] =
+{
+  40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 
40, 40,
+  40, 40, 40, 40, 40, 40, 41, 41, 42, 42, 42, 42, 43, 43, 43, 43, 44, 44, 44, 44, 45, 45, 45, 45, 46, 46, 
46, 47,
+  47, 48, 48, 48, 49, 49, 50, 50, 51, 52, 52, 53, 54, 54, 55, 56, 57, 58, 59, 60, 60, 61, 62, 63, 64, 65, 
66, 67,
+  68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 
94, 95,
+  96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 
118,
+  119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 132, 133, 134, 135, 136, 137, 138, 
139, 140,
+  141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 153, 154, 155, 156, 157, 158, 160, 161, 162, 163, 
164, 166,
+  167, 168, 169, 171, 172, 173, 174, 175, 176, 178, 179, 180, 181, 182, 183, 185, 186, 187, 188, 189, 190, 
191, 192,
+  193, 195, 196, 197, 198, 199, 200, 201, 202, 203, 205, 206, 207, 208, 209, 210, 211, 212, 214, 215, 216, 
217, 218,
+  220, 221, 222, 223, 225, 226, 227, 228, 230, 231, 232, 233, 235, 236, 237, 239, 240, 241, 242, 244, 245, 
246, 247,
+  249, 250, 251, 252, 254, 255, 255
+};
+
+static const guint8 NINE_B[] =
+{
+  45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 
45, 45,
+  45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 46, 46, 47, 47, 47, 48, 48, 48, 48, 49, 49, 49, 50, 50, 
50, 51,
+  51, 51, 52, 52, 53, 53, 54, 54, 55, 56, 56, 57, 58, 59, 60, 61, 62, 62, 63, 64, 65, 66, 68, 69, 70, 71, 
72, 73,
+  74, 75, 76, 77, 79, 80, 81, 82, 83, 84, 85, 86, 87, 89, 90, 91, 92, 93, 94, 96, 97, 98, 99, 100, 102, 103, 
104,
+  105, 107, 108, 109, 110, 112, 113, 114, 115, 117, 118, 119, 120, 122, 123, 124, 126, 127, 128, 130, 131, 
133, 134,
+  135, 137, 138, 140, 141, 143, 144, 145, 147, 148, 149, 151, 152, 153, 155, 156, 157, 159, 160, 161, 162, 
164, 165,
+  166, 167, 168, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 184, 185, 186, 187, 188, 
188, 189,
+  190, 191, 192, 193, 193, 194, 195, 195, 196, 196, 196, 197, 197, 197, 197, 198, 198, 198, 198, 198, 198, 
198, 198,
+  198, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 
199, 199,
+  199, 199, 199, 199, 198, 198, 198, 198, 198, 198, 197, 197, 197, 197, 197, 197, 197, 197, 197, 197, 197, 
197, 197,
+  197, 198, 198, 198, 198, 198, 198, 198
+};
+
+static const guint8 BRANNAN_A[] =
+{
+  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 
29, 30,
+  31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 
57, 58,
+  59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 
85, 86,
+  87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 
111,
+  112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 
133, 134,
+  135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 
156, 157,
+  158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 
179, 180,
+  181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 
202, 203,
+  204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 
225, 226,
+  227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 
248, 249,
+  250, 251, 252, 253, 254, 255, 255
+};
+
+static const guint8 BRANNAN_R[] =
+{
+  50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 51, 51, 51, 51, 51, 52, 53, 54, 55, 56, 57, 59, 60, 
62, 63,
+  64, 66, 67, 68, 69, 70, 71, 71, 72, 73, 73, 74, 75, 75, 76, 76, 77, 77, 78, 78, 79, 79, 80, 80, 81, 81, 
82, 83,
+  83, 84, 85, 86, 87, 88, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 
107,
+  108, 109, 111, 112, 113, 114, 115, 116, 118, 119, 120, 121, 122, 124, 125, 126, 128, 129, 130, 132, 133, 
134, 136,
+  137, 139, 140, 141, 143, 144, 146, 147, 149, 150, 152, 153, 154, 156, 157, 159, 160, 162, 163, 164, 166, 
167, 169,
+  170, 171, 173, 174, 175, 177, 178, 179, 181, 182, 183, 185, 186, 187, 189, 190, 192, 193, 195, 196, 198, 
199, 201,
+  203, 204, 206, 207, 209, 210, 212, 213, 215, 216, 217, 219, 220, 221, 223, 224, 225, 226, 227, 228, 229, 
230, 231,
+  232, 233, 234, 235, 236, 236, 237, 238, 239, 239, 240, 241, 241, 242, 243, 243, 244, 244, 245, 246, 246, 
247, 247,
+  248, 248, 249, 249, 249, 250, 250, 251, 251, 251, 252, 252, 252, 253, 253, 253, 254, 254, 254, 254, 254, 
254, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 
255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 254, 254, 254, 254, 254, 254
+};
+
+static const guint8 BRANNAN_G[] =
+{
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 3, 4, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 16, 17, 18, 
19, 20,
+  21, 23, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 38, 39, 40, 41, 43, 44, 45, 47, 48, 50, 51, 53, 
54, 56,
+  57, 59, 61, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 87, 89, 91, 93, 95, 97, 100, 102, 104, 106, 
108, 110,
+  112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 
154, 156,
+  158, 160, 161, 163, 165, 167, 168, 170, 172, 173, 175, 176, 178, 179, 181, 182, 183, 184, 186, 187, 188, 
189, 190,
+  191, 192, 193, 193, 194, 195, 196, 196, 197, 198, 198, 199, 200, 200, 201, 202, 202, 203, 203, 204, 204, 
205, 205,
+  206, 207, 207, 208, 208, 209, 210, 210, 211, 212, 212, 213, 214, 214, 215, 216, 217, 217, 218, 219, 219, 
220, 221,
+  221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227, 228, 228, 229, 229, 229, 230, 230, 231, 231, 232, 
232, 233,
+  233, 233, 234, 234, 234, 235, 235, 236, 236, 236, 237, 237, 237, 238, 238, 239, 239, 239, 240, 240, 240, 
241, 241,
+  241, 242, 242, 242, 243, 243, 243, 244, 244, 244, 245, 245, 245, 246, 246, 247, 247, 247, 248, 248, 249, 
249, 250,
+  250, 251, 251, 252, 252, 252
+};
+
+static const guint8 BRANNAN_B[] =
+{
+  48, 48, 48, 48, 48, 48, 48, 48, 49, 49, 49, 49, 49, 49, 49, 50, 50, 50, 51, 51, 51, 52, 52, 53, 53, 54, 
54, 54,
+  55, 55, 56, 56, 57, 57, 58, 58, 59, 60, 60, 61, 61, 62, 62, 63, 64, 64, 65, 66, 66, 67, 68, 68, 69, 70, 
71, 71,
+  72, 73, 74, 75, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 92, 93, 94, 95, 96, 98, 
99, 100,
+  101, 102, 103, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 
123, 124,
+  125, 126, 127, 128, 129, 130, 131, 132, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 141, 142, 143, 
144, 145,
+  146, 146, 147, 148, 148, 149, 150, 151, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 
164, 165,
+  166, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 178, 179, 180, 181, 181, 182, 183, 183, 184, 
184, 185,
+  185, 185, 186, 186, 187, 187, 187, 188, 188, 188, 189, 189, 190, 190, 191, 191, 192, 193, 193, 194, 195, 
195, 196,
+  197, 198, 199, 200, 200, 201, 202, 203, 204, 205, 206, 206, 207, 208, 209, 210, 211, 211, 212, 213, 214, 
214, 215,
+  216, 216, 217, 218, 218, 219, 219, 220, 220, 221, 222, 222, 222, 223, 223, 224, 224, 224, 225, 225, 225, 
225, 225,
+  225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225
+};
+
+static const guint8 GOTHAM_A[] =
+{
+  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 
29, 30,
+  31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 
57, 58,
+  59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 
85, 86,
+  87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 
111,
+  112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 
133, 134,
+  135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 
156, 157,
+  158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 
179, 180,
+  181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 
202, 203,
+  204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 
225, 226,
+  227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 
248, 249,
+  250, 251, 252, 253, 254, 255, 255
+};
+
+static const guint8 GOTHAM_R[] =
+{
+  0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 7, 7, 7, 8, 8, 9, 9, 10, 10, 
11, 11,
+  12, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 
25, 25,
+  25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 38, 38, 39, 
39, 40,
+  41, 41, 42, 42, 43, 44, 44, 45, 45, 46, 47, 47, 48, 48, 49, 50, 50, 51, 52, 52, 53, 54, 54, 55, 56, 57, 
58, 58,
+  59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 70, 71, 73, 74, 76, 77, 79, 80, 82, 83, 84, 86, 87, 88, 90, 91, 
92, 94,
+  95, 96, 98, 99, 100, 102, 103, 104, 106, 107, 109, 110, 111, 113, 114, 116, 118, 119, 121, 123, 124, 126, 
128,
+  129, 131, 133, 135, 137, 138, 140, 142, 144, 146, 148, 149, 151, 153, 155, 156, 158, 160, 162, 163, 165, 
167, 168,
+  170, 172, 173, 175, 176, 178, 180, 181, 183, 184, 186, 187, 189, 191, 192, 194, 195, 197, 198, 200, 201, 
203, 204,
+  205, 207, 208, 210, 211, 213, 214, 215, 217, 218, 219, 221, 222, 223, 224, 225, 227, 228, 229, 230, 231, 
233, 234,
+  235, 237, 238, 239, 241, 242, 244, 245, 246, 248, 249, 251, 252, 254, 255, 255
+};
+
+static const guint8 GOTHAM_G[] =
+{
+  0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 7, 7, 
7, 8, 8,
+  8, 9, 9, 9, 10, 10, 10, 11, 11, 12, 12, 12, 13, 13, 14, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 
20, 20,
+  21, 21, 22, 22, 23, 23, 24, 24, 25, 26, 26, 27, 28, 28, 29, 30, 30, 31, 32, 32, 33, 34, 35, 35, 36, 37, 
38, 39,
+  39, 40, 41, 42, 43, 44, 45, 46, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 
64, 65,
+  67, 68, 69, 70, 71, 72, 73, 74, 75, 77, 78, 79, 81, 82, 83, 84, 86, 87, 88, 90, 91, 92, 93, 95, 96, 97, 
99, 100,
+  101, 102, 104, 105, 106, 108, 109, 110, 112, 113, 115, 116, 118, 119, 121, 122, 124, 125, 127, 128, 130, 
132, 133,
+  135, 137, 138, 140, 142, 143, 145, 147, 149, 150, 152, 154, 155, 157, 159, 160, 162, 163, 165, 167, 168, 
170, 171,
+  173, 174, 176, 177, 179, 180, 182, 183, 185, 186, 188, 189, 191, 192, 194, 195, 196, 198, 199, 201, 202, 
204, 205,
+  206, 208, 209, 211, 212, 213, 215, 216, 217, 219, 220, 221, 223, 224, 225, 226, 228, 229, 230, 232, 233, 
234, 236,
+  237, 239, 240, 242, 243, 245, 246, 248, 249, 251, 252, 254, 255, 255
+};
+
+static const guint8 GOTHAM_B[] =
+{
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 
5, 5, 6,
+  6, 7, 7, 8, 9, 9, 10, 10, 11, 12, 12, 13, 13, 14, 15, 15, 16, 17, 17, 18, 19, 20, 20, 21, 22, 22, 23, 24, 
24, 25,
+  26, 27, 27, 28, 29, 30, 31, 32, 33, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 
50, 51,
+  52, 53, 54, 55, 56, 58, 59, 60, 61, 62, 63, 64, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77, 78, 79, 81, 
82, 83,
+  84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 
107, 108,
+  109, 110, 111, 112, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 
131, 131,
+  132, 133, 134, 135, 136, 137, 138, 139, 140, 140, 141, 142, 143, 144, 145, 146, 148, 149, 150, 151, 152, 
153, 155,
+  156, 157, 158, 160, 161, 162, 164, 165, 166, 168, 169, 171, 172, 173, 175, 176, 178, 179, 181, 182, 184, 
186, 187,
+  189, 190, 192, 194, 195, 197, 199, 201, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, 
228, 230,
+  232, 234, 235, 237, 239, 241, 243, 244, 246, 248, 250, 251, 253, 255, 255
+};
+
+static const guint8 NASHVILLE_A[] =
+{
+  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 
29, 30,
+  31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 
57, 58,
+  59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 
85, 86,
+  87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 
111,
+  112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 
133, 134,
+  135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 
156, 157,
+  158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 
179, 180,
+  181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 
202, 203,
+  204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 
225, 226,
+  227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 
248, 249,
+  250, 251, 252, 253, 254, 255, 255
+};
+
+static const guint8 NASHVILLE_R[] =
+{
+  56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 
56, 56,
+  56, 56, 56, 56, 56, 57, 57, 58, 58, 59, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 71, 72, 73, 75, 76, 
78, 79,
+  81, 82, 84, 85, 87, 88, 90, 91, 93, 95, 96, 98, 100, 102, 104, 106, 108, 110, 113, 115, 117, 120, 122, 
124, 127,
+  129, 131, 133, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 155, 157, 159, 160, 162, 164, 165, 167, 
168, 170,
+  171, 173, 174, 175, 177, 178, 179, 181, 182, 183, 185, 186, 187, 189, 190, 191, 192, 194, 195, 196, 197, 
198, 200,
+  201, 202, 203, 204, 205, 206, 208, 209, 209, 210, 211, 212, 213, 214, 215, 216, 217, 217, 218, 219, 220, 
220, 221,
+  222, 223, 223, 224, 225, 226, 226, 227, 228, 228, 229, 230, 230, 231, 231, 232, 233, 233, 234, 234, 235, 
235, 236,
+  237, 237, 238, 238, 239, 239, 240, 240, 240, 241, 241, 242, 242, 243, 243, 243, 244, 244, 245, 245, 245, 
246, 246,
+  246, 247, 247, 247, 248, 248, 248, 248, 249, 249, 249, 249, 250, 250, 250, 250, 251, 251, 251, 251, 251, 
252, 252,
+  252, 252, 252, 253, 253, 253, 253, 253, 254, 254, 254, 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 
255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255
+};
+
+static const guint8 NASHVILLE_G[] =
+{
+  38, 39, 39, 40, 41, 41, 42, 42, 43, 44, 44, 45, 46, 46, 47, 48, 49, 50, 51, 52, 53, 55, 56, 57, 59, 60, 
61, 63,
+  64, 65, 67, 68, 69, 71, 72, 73, 74, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 89, 90, 91, 93, 94, 95, 97, 
98, 99,
+  101, 102, 103, 104, 106, 107, 108, 110, 111, 112, 114, 115, 116, 118, 119, 121, 122, 123, 125, 126, 128, 
129, 130,
+  132, 133, 134, 136, 137, 138, 140, 141, 142, 143, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 
156, 157,
+  158, 158, 159, 160, 161, 162, 163, 163, 164, 165, 166, 166, 167, 168, 169, 169, 170, 171, 172, 172, 173, 
174, 175,
+  176, 176, 177, 178, 179, 180, 181, 181, 182, 183, 184, 185, 186, 187, 187, 188, 189, 189, 190, 191, 191, 
192, 193,
+  193, 194, 194, 195, 195, 196, 197, 197, 198, 198, 199, 199, 200, 200, 201, 201, 202, 202, 202, 203, 203, 
204, 204,
+  205, 205, 205, 206, 206, 207, 207, 207, 208, 208, 208, 209, 209, 209, 210, 210, 210, 211, 211, 211, 212, 
212, 212,
+  213, 213, 213, 213, 214, 214, 214, 214, 215, 215, 215, 215, 216, 216, 216, 216, 216, 217, 217, 217, 217, 
217, 218,
+  218, 218, 218, 218, 218, 219, 219, 219, 219, 219, 220, 220, 220, 220, 220, 220, 220, 221, 221, 221, 221, 
221, 221,
+  221, 221, 221, 221, 221, 221, 221, 221, 221, 221, 221, 221, 221, 221, 221, 221, 221
+};
+
+static const guint8 NASHVILLE_B[] =
+{
+  97, 98, 98, 99, 99, 100, 100, 101, 101, 102, 102, 103, 104, 104, 105, 105, 106, 107, 107, 108, 109, 110, 
110, 111,
+  112, 113, 114, 114, 115, 116, 116, 117, 118, 118, 119, 119, 120, 120, 121, 121, 122, 122, 123, 123, 124, 
124, 124,
+  125, 125, 126, 126, 127, 127, 127, 128, 128, 129, 129, 129, 130, 130, 131, 131, 132, 132, 132, 133, 133, 
134, 134,
+  135, 135, 136, 136, 136, 137, 137, 138, 138, 139, 139, 139, 140, 140, 141, 141, 142, 142, 142, 143, 143, 
144, 144,
+  144, 145, 145, 146, 146, 147, 147, 147, 148, 148, 149, 149, 150, 150, 151, 151, 151, 152, 152, 153, 153, 
154, 154,
+  154, 155, 155, 155, 156, 156, 156, 157, 157, 157, 158, 158, 158, 158, 158, 158, 159, 159, 159, 159, 159, 
159, 159,
+  159, 159, 159, 159, 160, 160, 160, 160, 160, 161, 161, 161, 162, 162, 162, 162, 163, 163, 163, 163, 164, 
164, 164,
+  164, 165, 165, 165, 165, 165, 165, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 
166, 166,
+  166, 166, 167, 167, 167, 167, 167, 167, 167, 167, 167, 168, 168, 168, 168, 168, 168, 169, 169, 169, 169, 
169, 170,
+  170, 170, 170, 171, 171, 171, 171, 171, 172, 172, 172, 172, 172, 173, 173, 173, 173, 173, 173, 173, 174, 
174, 174,
+  174, 174, 174, 174, 174, 175, 175, 175, 175, 175, 175, 175, 175, 175, 175, 175, 176, 176, 176, 176, 176, 
176, 176,
+  176, 176, 176
+};
+
+
+static gfloat
+photos_operation_insta_curve_interpolate (gfloat input, const guint8 *curve1, const guint8 *curve2)
+{
+  gfloat output;
+  gfloat x;
+  gfloat x1;
+  gfloat x2;
+  gfloat y;
+  gfloat y1;
+  gfloat y2;
+
+  x = input * G_MAXUINT8;
+  x1 = ceilf (x);
+  x2 = floorf (x);
+  y1 = (gfloat) curve1[(guint8) x1];
+
+  if (GEGL_FLOAT_EQUAL (x1, x2))
+    y = y1;
+  else
+    {
+      y2 = (gfloat) curve1[(guint8) x2];
+      y = y2 + (y1 - y2) * (x - x2) / (x1 - x2);
+    }
+
+  x = y;
+  y = (gfloat) curve2[(guint8) x];
+
+  output = y / G_MAXUINT8;
+  return output;
+}
+
+
+static gboolean
+photos_operation_insta_curve_1977_process_float (GeglOperation *operation,
+                                                 void *in_buf,
+                                                 void *out_buf,
+                                                 glong n_pixels,
+                                                 const GeglRectangle *roi,
+                                                 gint level)
+{
+  gfloat *in = in_buf;
+  gfloat *out = out_buf;
+  glong i;
+
+  for (i = 0; i < n_pixels; i++)
+    {
+      out[0] = photos_operation_insta_curve_interpolate (in[0], NINE_R, NINE_A);
+      out[1] = photos_operation_insta_curve_interpolate (in[1], NINE_G, NINE_A);
+      out[2] = photos_operation_insta_curve_interpolate (in[2], NINE_B, NINE_A);
+
+      in += 3;
+      out += 3;
+    }
+
+  return TRUE;
+}
+
+
+static gboolean
+photos_operation_insta_curve_1977_process_u8 (GeglOperation *operation,
+                                              void *in_buf,
+                                              void *out_buf,
+                                              glong n_pixels,
+                                              const GeglRectangle *roi,
+                                              gint level)
+{
+  guint8 *in = in_buf;
+  guint8 *out = out_buf;
+  glong i;
+
+  for (i = 0; i < n_pixels; i++)
+    {
+      out[0] = NINE_R[in[0]];
+      out[1] = NINE_G[in[1]];
+      out[2] = NINE_B[in[2]];
+
+      out[0] = NINE_A[out[0]];
+      out[1] = NINE_A[out[1]];
+      out[2] = NINE_A[out[2]];
+
+      in += 3;
+      out += 3;
+    }
+
+  return TRUE;
+}
+
+
+static gboolean
+photos_operation_insta_curve_brannan_process_float (GeglOperation *operation,
+                                                    void *in_buf,
+                                                    void *out_buf,
+                                                    glong n_pixels,
+                                                    const GeglRectangle *roi,
+                                                    gint level)
+{
+  gfloat *in = in_buf;
+  gfloat *out = out_buf;
+  glong i;
+
+  for (i = 0; i < n_pixels; i++)
+    {
+      const gfloat saturation = 0.1;
+      guint max;
+
+      out[0] = photos_operation_insta_curve_interpolate (in[0], BRANNAN_R, BRANNAN_A);
+      out[1] = photos_operation_insta_curve_interpolate (in[1], BRANNAN_G, BRANNAN_A);
+      out[2] = photos_operation_insta_curve_interpolate (in[2], BRANNAN_B, BRANNAN_A);
+
+      max = (out[0] > out[1]) ? 0 : 1;
+      max = (out[max] > out[2]) ? max : 2;
+
+      if (max != 0)
+        out[0] += (guint8) ((out[max] - out[0]) * saturation + 0.5);
+
+      if (max != 1)
+        out[1] += (guint8) ((out[max] - out[1]) * saturation + 0.5);
+
+      if (max != 2)
+        out[2] += (guint8) ((out[max] - out[2]) * saturation + 0.5);
+
+      in += 3;
+      out += 3;
+    }
+
+  return TRUE;
+}
+
+
+static gboolean
+photos_operation_insta_curve_brannan_process_u8 (GeglOperation *operation,
+                                                 void *in_buf,
+                                                 void *out_buf,
+                                                 glong n_pixels,
+                                                 const GeglRectangle *roi,
+                                                 gint level)
+{
+  guint8 *in = in_buf;
+  guint8 *out = out_buf;
+  glong i;
+
+  for (i = 0; i < n_pixels; i++)
+    {
+      const gfloat saturation = 0.1;
+      guint max;
+
+      out[0] = BRANNAN_R[in[0]];
+      out[1] = BRANNAN_G[in[1]];
+      out[2] = BRANNAN_B[in[2]];
+
+      out[0] = BRANNAN_A[out[0]];
+      out[1] = BRANNAN_A[out[1]];
+      out[2] = BRANNAN_A[out[2]];
+
+      max = (out[0] > out[1]) ? 0 : 1;
+      max = (out[max] > out[2]) ? max : 2;
+
+      if (max != 0)
+        out[0] += (guint8) ((out[max] - out[0]) * saturation + 0.5);
+
+      if (max != 1)
+        out[1] += (guint8) ((out[max] - out[1]) * saturation + 0.5);
+
+      if (max != 2)
+        out[2] += (guint8) ((out[max] - out[2]) * saturation + 0.5);
+
+      in += 3;
+      out += 3;
+    }
+
+  return TRUE;
+}
+
+
+static gboolean
+photos_operation_insta_curve_gotham_process_float (GeglOperation *operation,
+                                                   void *in_buf,
+                                                   void *out_buf,
+                                                   glong n_pixels,
+                                                   const GeglRectangle *roi,
+                                                   gint level)
+{
+  gfloat *in = in_buf;
+  gfloat *out = out_buf;
+  glong i;
+
+  for (i = 0; i < n_pixels; i++)
+    {
+      out[0] = photos_operation_insta_curve_interpolate (in[0], GOTHAM_R, GOTHAM_A);
+      out[1] = photos_operation_insta_curve_interpolate (in[1], GOTHAM_G, GOTHAM_A);
+      out[2] = photos_operation_insta_curve_interpolate (in[2], GOTHAM_B, GOTHAM_A);
+
+      in += 3;
+      out += 3;
+    }
+
+  return TRUE;
+}
+
+
+static gboolean
+photos_operation_insta_curve_gotham_process_u8 (GeglOperation *operation,
+                                                void *in_buf,
+                                                void *out_buf,
+                                                glong n_pixels,
+                                                const GeglRectangle *roi,
+                                                gint level)
+{
+  guint8 *in = in_buf;
+  guint8 *out = out_buf;
+  glong i;
+
+  for (i = 0; i < n_pixels; i++)
+    {
+      out[0] = GOTHAM_R[in[0]];
+      out[1] = GOTHAM_G[in[1]];
+      out[2] = GOTHAM_B[in[2]];
+
+      out[0] = GOTHAM_A[out[0]];
+      out[1] = GOTHAM_A[out[1]];
+      out[2] = GOTHAM_A[out[2]];
+
+      in += 3;
+      out += 3;
+    }
+
+  return TRUE;
+}
+
+
+static gboolean
+photos_operation_insta_curve_nashville_process_float (GeglOperation *operation,
+                                                      void *in_buf,
+                                                      void *out_buf,
+                                                      glong n_pixels,
+                                                      const GeglRectangle *roi,
+                                                      gint level)
+{
+  gfloat *in = in_buf;
+  gfloat *out = out_buf;
+  glong i;
+
+  for (i = 0; i < n_pixels; i++)
+    {
+      const gfloat brightness = -0.05;
+      const gfloat contrast = 1.1;
+
+      out[0] = (in[0] - 0.5f) * contrast + brightness + 0.5;
+      out[1] = (in[1] - 0.5f) * contrast + brightness + 0.5;
+      out[2] = (in[2] - 0.5f) * contrast + brightness + 0.5;
+
+      out[0] = photos_operation_insta_curve_interpolate (out[0], NASHVILLE_R, NASHVILLE_A);
+      out[1] = photos_operation_insta_curve_interpolate (out[1], NASHVILLE_G, NASHVILLE_A);
+      out[2] = photos_operation_insta_curve_interpolate (out[2], NASHVILLE_B, NASHVILLE_A);
+
+      in += 3;
+      out += 3;
+    }
+
+  return TRUE;
+}
+
+
+static gboolean
+photos_operation_insta_curve_nashville_process_u8 (GeglOperation *operation,
+                                                   void *in_buf,
+                                                   void *out_buf,
+                                                   glong n_pixels,
+                                                   const GeglRectangle *roi,
+                                                   gint level)
+{
+  guint8 *in = in_buf;
+  guint8 *out = out_buf;
+  glong i;
+
+  for (i = 0; i < n_pixels; i++)
+    {
+      const gfloat brightness = -0.05;
+      const gfloat contrast = 1.1;
+      gfloat channel;
+
+      channel = in[0] / 255.0;
+      channel = (channel - 0.5f) * contrast + brightness + 0.5;
+      channel = CLAMP (channel, 0.0, 1.0);
+      out[0] = (guint8) (channel * 255.0);
+
+      channel = in[1] / 255.0;
+      out[1] = (channel - 0.5f) * contrast + brightness + 0.5;
+      channel = CLAMP (channel, 0.0, 1.0);
+      out[1] = (guint8) (channel * 255.0);
+
+      channel = in[2] / 255.0;
+      out[2] = (channel - 0.5f) * contrast + brightness + 0.5;
+      channel = CLAMP (channel, 0.0, 1.0);
+      out[2] = (guint8) (channel * 255.0);
+
+      out[0] = NASHVILLE_R[out[0]];
+      out[1] = NASHVILLE_G[out[1]];
+      out[2] = NASHVILLE_B[out[2]];
+
+      out[0] = NASHVILLE_A[out[0]];
+      out[1] = NASHVILLE_A[out[1]];
+      out[2] = NASHVILLE_A[out[2]];
+
+      in += 3;
+      out += 3;
+    }
+
+  return TRUE;
+}
+
+
+static void
+photos_operation_insta_curve_prepare (GeglOperation *operation)
+{
+  PhotosOperationInstaCurve *self = PHOTOS_OPERATION_INSTA_CURVE (operation);
+  GeglOperationPointFilterClass *point_filter_class = GEGL_OPERATION_POINT_FILTER_GET_CLASS (operation);
+  const Babl *format;
+  const Babl *format_float;
+  const Babl *format_u8;
+  const Babl *input_format;
+  const Babl *type;
+  const Babl *type_u8;
+
+  input_format = gegl_operation_get_source_format (operation, "input");
+  if (input_format == NULL)
+    return;
+
+  type = babl_format_get_type (input_format, 0);
+
+  format_float = babl_format ("R'G'B' float");
+  format_u8 = babl_format ("R'G'B' u8");
+  type_u8 = babl_type ("u8");
+
+  switch (self->preset)
+    {
+    case PHOTOS_OPERATION_INSTA_PRESET_1977:
+      if (type == type_u8)
+        {
+          format = format_u8;
+          point_filter_class->process = photos_operation_insta_curve_1977_process_u8;
+        }
+      else
+        {
+          format = format_float;
+          point_filter_class->process = photos_operation_insta_curve_1977_process_float;
+        }
+      break;
+
+    case PHOTOS_OPERATION_INSTA_PRESET_BRANNAN:
+      if (type == type_u8)
+        {
+          format = format_u8;
+          point_filter_class->process = photos_operation_insta_curve_brannan_process_u8;
+        }
+      else
+        {
+          format = format_float;
+          point_filter_class->process = photos_operation_insta_curve_brannan_process_float;
+        }
+      break;
+
+    case PHOTOS_OPERATION_INSTA_PRESET_GOTHAM:
+      if (type == type_u8)
+        {
+          format = format_u8;
+          point_filter_class->process = photos_operation_insta_curve_gotham_process_u8;
+        }
+      else
+        {
+          format = format_float;
+          point_filter_class->process = photos_operation_insta_curve_gotham_process_float;
+        }
+      break;
+
+    case PHOTOS_OPERATION_INSTA_PRESET_NASHVILLE:
+      if (type == type_u8)
+        {
+          format = format_u8;
+          point_filter_class->process = photos_operation_insta_curve_nashville_process_u8;
+        }
+      else
+        {
+          format = format_float;
+          point_filter_class->process = photos_operation_insta_curve_nashville_process_float;
+        }
+      break;
+
+    case PHOTOS_OPERATION_INSTA_PRESET_NONE:
+    case PHOTOS_OPERATION_INSTA_PRESET_GRAY:
+    default:
+      g_assert_not_reached ();
+    }
+
+  gegl_operation_set_format (operation, "input", format);
+  gegl_operation_set_format (operation, "output", format);
+}
+
+
+static void
+photos_operation_insta_curve_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+  PhotosOperationInstaCurve *self = PHOTOS_OPERATION_INSTA_CURVE (object);
+
+  switch (prop_id)
+    {
+    case PROP_PRESET:
+      g_value_set_enum (value, (gint) self->preset);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+
+static void
+photos_operation_insta_curve_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec 
*pspec)
+{
+  PhotosOperationInstaCurve *self = PHOTOS_OPERATION_INSTA_CURVE (object);
+
+  switch (prop_id)
+    {
+    case PROP_PRESET:
+      self->preset = (PhotosOperationInstaPreset) g_value_get_enum (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+
+static void
+photos_operation_insta_curve_init (PhotosOperationInstaCurve *self)
+{
+}
+
+
+static void
+photos_operation_insta_curve_class_init (PhotosOperationInstaCurveClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  GeglOperationClass *operation_class = GEGL_OPERATION_CLASS (class);
+  GeglOperationPointFilterClass *point_filter_class = GEGL_OPERATION_POINT_FILTER_CLASS (class);
+
+  operation_class->opencl_support = FALSE;
+
+  object_class->get_property = photos_operation_insta_curve_get_property;
+  object_class->set_property = photos_operation_insta_curve_set_property;
+  operation_class->prepare = photos_operation_insta_curve_prepare;
+  point_filter_class->process = NULL; /* will be assigned in prepare */
+
+  g_object_class_install_property (object_class,
+                                   PROP_PRESET,
+                                   g_param_spec_enum ("preset",
+                                                      "PhotosOperationInstaPreset enum",
+                                                      "Which curve to apply",
+                                                      PHOTOS_TYPE_OPERATION_INSTA_PRESET,
+                                                      PHOTOS_OPERATION_INSTA_PRESET_NONE,
+                                                      G_PARAM_CONSTRUCT | G_PARAM_READWRITE));
+
+  gegl_operation_class_set_keys (operation_class,
+                                 "name", "photos:insta-curve",
+                                 "title", "Insta Curve",
+                                 "description", "Apply a preset curve to an image",
+                                 "categories", "hidden",
+                                 NULL);
+}
diff --git a/src/photos-operation-insta-curve.h b/src/photos-operation-insta-curve.h
new file mode 100644
index 0000000..d4fd202
--- /dev/null
+++ b/src/photos-operation-insta-curve.h
@@ -0,0 +1,45 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2015 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#ifndef PHOTOS_OPERATION_INSTA_CURVE_H
+#define PHOTOS_OPERATION_INSTA_CURVE_H
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define PHOTOS_TYPE_OPERATION_INSTA_CURVE (photos_operation_insta_curve_get_type ())
+
+#define PHOTOS_OPERATION_INSTA_CURVE(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
+   PHOTOS_TYPE_OPERATION_INSTA_CURVE, PhotosOperationInstaCurve))
+
+#define PHOTOS_IS_OPERATION_INSTA_CURVE(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
+   PHOTOS_TYPE_OPERATION_INSTA_CURVE))
+
+typedef struct _PhotosOperationInstaCurve      PhotosOperationInstaCurve;
+typedef struct _PhotosOperationInstaCurveClass PhotosOperationInstaCurveClass;
+
+GType            photos_operation_insta_curve_get_type       (void) G_GNUC_CONST;
+
+G_END_DECLS
+
+#endif /* PHOTOS_OPERATION_INSTA_CURVE_H */
diff --git a/src/photos-operation-insta-filter.c b/src/photos-operation-insta-filter.c
new file mode 100644
index 0000000..d81c281
--- /dev/null
+++ b/src/photos-operation-insta-filter.c
@@ -0,0 +1,292 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2015 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+
+#include "config.h"
+
+#include <math.h>
+
+#include <babl/babl.h>
+#include <gegl.h>
+#include <gegl-plugin.h>
+
+#include "photos-enums.h"
+#include "photos-operation-insta-common.h"
+#include "photos-operation-insta-filter.h"
+
+
+struct _PhotosOperationInstaFilter
+{
+  GeglOperationMeta parent_instance;
+  GeglNode *input;
+  GeglNode *output;
+  GList *nodes;
+  PhotosOperationInstaPreset preset;
+};
+
+struct _PhotosOperationInstaFilterClass
+{
+  GeglOperationMetaClass parent_class;
+};
+
+enum
+{
+  PROP_0,
+  PROP_PRESET
+};
+
+
+G_DEFINE_TYPE (PhotosOperationInstaFilter, photos_operation_insta_filter, GEGL_TYPE_OPERATION_META);
+
+
+static void
+photos_operation_insta_filter_setup (PhotosOperationInstaFilter *self)
+{
+  GeglOperation *operation = GEGL_OPERATION (self);
+  GeglNode *node;
+  GList *l;
+
+  g_list_free_full (self->nodes, g_object_unref);
+  self->nodes = NULL;
+
+  switch (self->preset)
+    {
+    case PHOTOS_OPERATION_INSTA_PRESET_NONE:
+      node = gegl_node_new_child (operation->node,
+                                  "operation", "gegl:nop",
+                                  NULL);
+      self->nodes = g_list_prepend (self->nodes, node);
+      break;
+
+    case PHOTOS_OPERATION_INSTA_PRESET_1977:
+      node = gegl_node_new_child (operation->node,
+                                  "operation", "photos:insta-curve",
+                                  "preset", self->preset,
+                                  NULL);
+      self->nodes = g_list_prepend (self->nodes, node);
+      break;
+
+    case PHOTOS_OPERATION_INSTA_PRESET_BRANNAN:
+      node = gegl_node_new_child (operation->node,
+                                  "operation", "photos:insta-curve",
+                                  "preset", self->preset,
+                                  NULL);
+      self->nodes = g_list_prepend (self->nodes, node);
+      break;
+
+    case PHOTOS_OPERATION_INSTA_PRESET_GOTHAM:
+      node = gegl_node_new_child (operation->node,
+                                  "operation", "photos:insta-curve",
+                                  "preset", self->preset,
+                                  NULL);
+      self->nodes = g_list_prepend (self->nodes, node);
+
+      node = gegl_node_new_child (operation->node,
+                                  "operation", "gegl:gray",
+                                  NULL);
+      self->nodes = g_list_prepend (self->nodes, node);
+      break;
+
+    case PHOTOS_OPERATION_INSTA_PRESET_GRAY:
+      node = gegl_node_new_child (operation->node,
+                                  "operation", "gegl:gray",
+                                  NULL);
+      self->nodes = g_list_prepend (self->nodes, node);
+      break;
+
+    case PHOTOS_OPERATION_INSTA_PRESET_NASHVILLE:
+      node = gegl_node_new_child (operation->node,
+                                  "operation", "photos:insta-curve",
+                                  "preset", self->preset,
+                                  NULL);
+      self->nodes = g_list_prepend (self->nodes, node);
+      break;
+
+    default:
+      break;
+    }
+
+  node = GEGL_NODE (self->nodes->data);
+  gegl_node_link (self->input, node);
+
+  for (l = self->nodes; l != NULL && l->next != NULL; l = l->next)
+    {
+      GeglNode *sink = GEGL_NODE (l->next->data);
+      GeglNode *source = GEGL_NODE (l->data);
+
+      gegl_node_link (source, sink);
+      gegl_operation_meta_watch_node (operation, source);
+    }
+
+  node = GEGL_NODE (l->data);
+  gegl_node_link (node, self->output);
+  gegl_operation_meta_watch_node (operation, node);
+}
+
+
+static void
+photos_operation_insta_filter_set_preset (PhotosOperationInstaFilter *self, PhotosOperationInstaPreset 
preset)
+{
+  if (self->preset == preset)
+    return;
+
+  self->preset = preset;
+  if (self->input != NULL)
+    photos_operation_insta_filter_setup (self);
+}
+
+
+static void
+photos_operation_insta_filter_attach (GeglOperation *operation)
+{
+  PhotosOperationInstaFilter *self = PHOTOS_OPERATION_INSTA_FILTER (operation);
+
+  self->input = gegl_node_get_output_proxy (operation->node, "input");
+  self->output = gegl_node_get_output_proxy (operation->node, "output");
+  photos_operation_insta_filter_setup (self);
+}
+
+
+static GeglNode *
+photos_operation_insta_filter_detect (GeglOperation *operation, gint x, gint y)
+{
+  PhotosOperationInstaFilter *self = PHOTOS_OPERATION_INSTA_FILTER (operation);
+  GeglRectangle bounds;
+
+  bounds = gegl_node_get_bounding_box (self->output);
+  if (x >= bounds.x && y >= bounds.y && x  < bounds.x + bounds.width && y  < bounds.y + bounds.height)
+    return operation->node;
+
+  return NULL;
+}
+
+
+static void
+photos_operation_insta_filter_prepare (GeglOperation *operation)
+{
+  const Babl *format;
+  const Babl *format_float;
+  const Babl *format_u8;
+  const Babl *input_format;
+  const Babl *type;
+  const Babl *type_u8;
+
+  input_format = gegl_operation_get_source_format (operation, "input");
+  type = babl_format_get_type (input_format, 0);
+
+  format_float = babl_format ("R'G'B' float");
+  format_u8 = babl_format ("R'G'B' u8");
+  type_u8 = babl_type ("u8");
+
+  if (type == type_u8)
+    format = format_u8;
+  else
+    format = format_float;
+
+  gegl_operation_set_format (operation, "input", format);
+  gegl_operation_set_format (operation, "output", format);
+}
+
+
+static void
+photos_operation_insta_filter_finalize (GObject *object)
+{
+  PhotosOperationInstaFilter *self = PHOTOS_OPERATION_INSTA_FILTER (object);
+
+  g_list_free (self->nodes);
+
+  G_OBJECT_CLASS (photos_operation_insta_filter_parent_class)->finalize (object);
+}
+
+
+static void
+photos_operation_insta_filter_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+  PhotosOperationInstaFilter *self = PHOTOS_OPERATION_INSTA_FILTER (object);
+
+  switch (prop_id)
+    {
+    case PROP_PRESET:
+      g_value_set_enum (value, (gint) self->preset);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+
+static void
+photos_operation_insta_filter_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec 
*pspec)
+{
+  PhotosOperationInstaFilter *self = PHOTOS_OPERATION_INSTA_FILTER (object);
+  PhotosOperationInstaPreset preset;
+
+  switch (prop_id)
+    {
+    case PROP_PRESET:
+      preset = (PhotosOperationInstaPreset) g_value_get_enum (value);
+      photos_operation_insta_filter_set_preset (self, preset);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+
+static void
+photos_operation_insta_filter_init (PhotosOperationInstaFilter *self)
+{
+}
+
+
+static void
+photos_operation_insta_filter_class_init (PhotosOperationInstaFilterClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  GeglOperationClass *operation_class = GEGL_OPERATION_CLASS (class);
+
+  operation_class->opencl_support = FALSE;
+
+  object_class->finalize = photos_operation_insta_filter_finalize;
+  object_class->get_property = photos_operation_insta_filter_get_property;
+  object_class->set_property = photos_operation_insta_filter_set_property;
+  operation_class->attach = photos_operation_insta_filter_attach;
+  operation_class->detect = photos_operation_insta_filter_detect;
+  operation_class->prepare = photos_operation_insta_filter_prepare;
+
+  g_object_class_install_property (object_class,
+                                   PROP_PRESET,
+                                   g_param_spec_enum ("preset",
+                                                      "PhotosOperationInstaPreset enum",
+                                                      "Which filter to apply",
+                                                      PHOTOS_TYPE_OPERATION_INSTA_PRESET,
+                                                      PHOTOS_OPERATION_INSTA_PRESET_NONE,
+                                                      G_PARAM_CONSTRUCT | G_PARAM_READWRITE));
+
+  gegl_operation_class_set_keys (operation_class,
+                                 "name", "photos:insta-filter",
+                                 "title", "Insta Filter",
+                                 "description", "Apply a preset filter to an image",
+                                 NULL);
+}
diff --git a/src/photos-operation-insta-filter.h b/src/photos-operation-insta-filter.h
new file mode 100644
index 0000000..23d6f13
--- /dev/null
+++ b/src/photos-operation-insta-filter.h
@@ -0,0 +1,45 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2015 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#ifndef PHOTOS_OPERATION_INSTA_FILTER_H
+#define PHOTOS_OPERATION_INSTA_FILTER_H
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define PHOTOS_TYPE_OPERATION_INSTA_FILTER (photos_operation_insta_filter_get_type ())
+
+#define PHOTOS_OPERATION_INSTA_FILTER(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
+   PHOTOS_TYPE_OPERATION_INSTA_FILTER, PhotosOperationInstaFilter))
+
+#define PHOTOS_IS_OPERATION_INSTA_FILTER(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
+   PHOTOS_TYPE_OPERATION_INSTA_FILTER))
+
+typedef struct _PhotosOperationInstaFilter      PhotosOperationInstaFilter;
+typedef struct _PhotosOperationInstaFilterClass PhotosOperationInstaFilterClass;
+
+GType            photos_operation_insta_filter_get_type       (void) G_GNUC_CONST;
+
+G_END_DECLS
+
+#endif /* PHOTOS_OPERATION_INSTA_FILTER_H */
diff --git a/src/photos-utils.c b/src/photos-utils.c
index 8ec4303..27c90a0 100644
--- a/src/photos-utils.c
+++ b/src/photos-utils.c
@@ -41,6 +41,8 @@
 #include "photos-google-item.h"
 #include "photos-local-item.h"
 #include "photos-media-server-item.h"
+#include "photos-operation-insta-curve.h"
+#include "photos-operation-insta-filter.h"
 #include "photos-query.h"
 #include "photos-source.h"
 #include "photos-tracker-queue.h"
@@ -530,6 +532,9 @@ photos_utils_ensure_builtins (void)
       g_type_ensure (PHOTOS_TYPE_LOCAL_ITEM);
       g_type_ensure (PHOTOS_TYPE_MEDIA_SERVER_ITEM);
 
+      g_type_ensure (PHOTOS_TYPE_OPERATION_INSTA_CURVE);
+      g_type_ensure (PHOTOS_TYPE_OPERATION_INSTA_FILTER);
+
       g_once_init_leave (&once_init_value, 1);
     }
 }


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