[gimp] app: add gimp_image_convert_color_profile()
- From: Michael Natterer <mitch src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp] app: add gimp_image_convert_color_profile()
- Date: Wed, 10 Jun 2015 00:05:51 +0000 (UTC)
commit 1ade7ffee5debc0016bd143e445fafc0eb558483
Author: Michael Natterer <mitch gimp org>
Date: Wed Jun 10 01:36:19 2015 +0200
app: add gimp_image_convert_color_profile()
which converts an image to another color profile. Currently unused.
app/core/Makefile.am | 1 +
app/core/gimpimage-profile.c | 218 +++++++++++++++++++++++++++++++++++++++++-
app/core/gimpimage-profile.h | 10 ++
3 files changed, 228 insertions(+), 1 deletions(-)
---
diff --git a/app/core/Makefile.am b/app/core/Makefile.am
index c66b61e..a84d984 100644
--- a/app/core/Makefile.am
+++ b/app/core/Makefile.am
@@ -17,6 +17,7 @@ AM_CPPFLAGS = \
$(GEGL_CFLAGS) \
$(GDK_PIXBUF_CFLAGS) \
$(GEXIV2_CFLAGS) \
+ $(LCMS_CFLAGS) \
-I$(includedir) \
$(xobjective_c)
diff --git a/app/core/gimpimage-profile.c b/app/core/gimpimage-profile.c
index 87142f4..9002ae5 100644
--- a/app/core/gimpimage-profile.c
+++ b/app/core/gimpimage-profile.c
@@ -1,6 +1,9 @@
/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
+ * gimpimage-profile.c
+ * Copyright (C) 2015 Michael Natterer <mitch gimp org>
+ *
* 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 3 of the License, or
@@ -18,6 +21,7 @@
#include "config.h"
#include <string.h>
+#include <lcms2.h>
#include <cairo.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
@@ -32,14 +36,34 @@
#include "config/gimpcoreconfig.h"
#include "gimp.h"
+#include "gimpdrawable.h"
#include "gimperror.h"
#include "gimpimage.h"
+#include "gimpimage-colormap.h"
#include "gimpimage-profile.h"
+#include "gimpimage-undo.h"
+#include "gimpprogress.h"
#include "gimp-intl.h"
-/* public functions */
+/* local function prototypes */
+
+static void gimp_image_convert_profile_rgb (GimpImage *image,
+ GimpColorProfile src_profile,
+ GimpColorProfile dest_profile,
+ GimpColorRenderingIntent intent,
+ gboolean bpc,
+ GimpProgress *progress);
+static void gimp_image_convert_profile_indexed (GimpImage *image,
+ GimpColorProfile src_profile,
+ GimpColorProfile dest_profile,
+ GimpColorRenderingIntent intent,
+ gboolean bpc,
+ GimpProgress *progress);
+
+
+/* public functions */
gboolean
gimp_image_validate_icc_profile (GimpImage *image,
@@ -201,3 +225,195 @@ gimp_image_set_color_profile (GimpImage *image,
return FALSE;
}
+
+gboolean
+gimp_image_convert_color_profile (GimpImage *image,
+ GimpColorProfile dest_profile,
+ GimpColorRenderingIntent intent,
+ gboolean bpc,
+ GimpProgress *progress,
+ GError **error)
+{
+ GimpColorProfile src_profile;
+ gchar *src_label;
+ gchar *dest_label;
+
+ g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
+ g_return_val_if_fail (dest_profile != NULL, FALSE);
+ g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), FALSE);
+ g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
+
+ if (! gimp_image_validate_color_profile (image, dest_profile, error))
+ return FALSE;
+
+ src_profile = gimp_color_managed_get_color_profile (GIMP_COLOR_MANAGED (image));
+
+ if (gimp_color_profile_is_equal (src_profile, dest_profile))
+ {
+ gimp_color_profile_close (src_profile);
+ return TRUE;
+ }
+
+ src_label = gimp_color_profile_get_label (src_profile);
+ dest_label = gimp_color_profile_get_label (dest_profile);
+
+ if (progress)
+ gimp_progress_start (progress, FALSE,
+ _("Converting from '%s' to '%s'"),
+ src_label, dest_label);
+
+ g_free (dest_label);
+ g_free (src_label);
+
+ gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_CONVERT,
+ _("Color profile conversion"));
+
+ switch (gimp_image_get_base_type (image))
+ {
+ case GIMP_RGB:
+ gimp_image_convert_profile_rgb (image,
+ src_profile, dest_profile,
+ intent, bpc,
+ progress);
+ break;
+
+ case GIMP_GRAY:
+ break;
+
+ case GIMP_INDEXED:
+ gimp_image_convert_profile_indexed (image,
+ src_profile, dest_profile,
+ intent, bpc,
+ progress);
+ break;
+ }
+
+ gimp_image_undo_group_end (image);
+
+ if (progress)
+ gimp_progress_end (progress);
+
+ gimp_color_profile_close (src_profile);
+
+ return TRUE;
+}
+
+
+/* private functions */
+
+static void
+gimp_image_convert_profile_rgb (GimpImage *image,
+ GimpColorProfile src_profile,
+ GimpColorProfile dest_profile,
+ GimpColorRenderingIntent intent,
+ gboolean bpc,
+ GimpProgress *progress)
+{
+ GList *layers;
+ GList *list;
+ gint n_drawables;
+ gint nth_drawable;
+
+ layers = gimp_image_get_layer_list (image);
+
+ n_drawables = g_list_length (layers);
+
+ for (list = layers, nth_drawable = 0;
+ list;
+ list = g_list_next (list), nth_drawable++)
+ {
+ GimpDrawable *drawable = list->data;
+ const Babl *iter_format;
+ cmsUInt32Number lcms_format;
+ cmsUInt32Number flags;
+ cmsHTRANSFORM transform;
+
+ if (gimp_viewable_get_children (GIMP_VIEWABLE (drawable)))
+ continue;
+
+ iter_format =
+ gimp_color_profile_get_format (gimp_drawable_get_format (drawable),
+ &lcms_format);
+
+ flags = cmsFLAGS_NOOPTIMIZE;
+
+ if (bpc)
+ flags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
+
+ transform = cmsCreateTransform (src_profile, lcms_format,
+ dest_profile, lcms_format,
+ intent, flags);
+
+ if (transform)
+ {
+ GeglBuffer *buffer;
+ GeglBufferIterator *iter;
+
+ buffer = gimp_drawable_get_buffer (drawable);
+
+ gimp_drawable_push_undo (drawable, NULL, NULL,
+ 0, 0,
+ gegl_buffer_get_width (buffer),
+ gegl_buffer_get_height (buffer));
+
+ iter = gegl_buffer_iterator_new (buffer, NULL, 0,
+ iter_format,
+ GEGL_ACCESS_READWRITE,
+ GEGL_ABYSS_NONE);
+
+ while (gegl_buffer_iterator_next (iter))
+ {
+ cmsDoTransform (transform,
+ iter->data[0], iter->data[0], iter->length);
+ }
+
+ gimp_drawable_update (drawable, 0, 0,
+ gegl_buffer_get_width (buffer),
+ gegl_buffer_get_height (buffer));
+
+ cmsDeleteTransform (transform);
+ }
+
+ if (progress)
+ gimp_progress_set_value (progress,
+ (gdouble) nth_drawable / (gdouble) n_drawables);
+ }
+
+ g_list_free (layers);
+}
+
+static void
+gimp_image_convert_profile_indexed (GimpImage *image,
+ GimpColorProfile src_profile,
+ GimpColorProfile dest_profile,
+ GimpColorRenderingIntent intent,
+ gboolean bpc,
+ GimpProgress *progress)
+{
+ GimpColorTransform transform;
+ guchar *cmap;
+ gint n_colors;
+
+ n_colors = gimp_image_get_colormap_size (image);
+ cmap = g_memdup (gimp_image_get_colormap (image), n_colors * 3);
+
+ transform = cmsCreateTransform (src_profile, TYPE_RGB_8,
+ dest_profile, TYPE_RGB_8,
+ intent,
+ cmsFLAGS_NOOPTIMIZE |
+ (bpc ? cmsFLAGS_BLACKPOINTCOMPENSATION : 0));
+
+ if (transform)
+ {
+ cmsDoTransform (transform, cmap, cmap, n_colors);
+ cmsDeleteTransform (transform);
+
+ gimp_image_set_colormap (image, cmap, n_colors, TRUE);
+ }
+ else
+ {
+ g_warning ("cmsCreateTransform() failed!");
+ }
+
+ g_free (cmap);
+}
diff --git a/app/core/gimpimage-profile.h b/app/core/gimpimage-profile.h
index b321b8b..00cefa3 100644
--- a/app/core/gimpimage-profile.h
+++ b/app/core/gimpimage-profile.h
@@ -1,6 +1,9 @@
/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
+ * gimpimage-profile.h
+ * Copyright (C) 2015 Michael Natterer <mitch gimp org>
+ *
* 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 3 of the License, or
@@ -38,5 +41,12 @@ gboolean gimp_image_set_color_profile (GimpImage *ima
GimpColorProfile profile,
GError **error);
+gboolean gimp_image_convert_color_profile (GimpImage *image,
+ GimpColorProfile dest_profile,
+ GimpColorRenderingIntent intent,
+ gboolean bpc,
+ GimpProgress *progress,
+ GError **error);
+
#endif /* __GIMP_IMAGE_PROFILE_H__ */
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