[gimp] app: color manage palette and gradient previews

[Michael Natterer <mitch src gnome org>]

commit 9a871f6262c812e43ff09fd3bbfc760c63f87c8a
Author: Michael Natterer <mitch gimp org>
Date:   Fri May 27 23:59:07 2016 +0200

    app: color manage palette and gradient previews

 app/widgets/gimpviewrenderergradient.c |   11 +++++++++++
 app/widgets/gimpviewrendererpalette.c  |   19 ++++++++++++++++++-
 2 files changed, 29 insertions(+), 1 deletions(-)
---
diff --git a/app/widgets/gimpviewrenderergradient.c b/app/widgets/gimpviewrenderergradient.c
index 10db1f6..3094842 100644
--- a/app/widgets/gimpviewrenderergradient.c
+++ b/app/widgets/gimpviewrenderergradient.c
@@ -159,6 +159,7 @@ gimp_view_renderer_gradient_render (GimpViewRenderer *renderer,
   GimpViewRendererGradient *rendergrad = GIMP_VIEW_RENDERER_GRADIENT (renderer);
   GimpGradient             *gradient   = GIMP_GRADIENT (renderer->viewable);
   GimpGradientSegment      *seg        = NULL;
+  GimpColorTransform       *transform;
   guchar                   *buf;
   guchar                   *dest;
   gint                      dest_stride;
@@ -194,6 +195,16 @@ gimp_view_renderer_gradient_render (GimpViewRenderer *renderer,
   dest        = cairo_image_surface_get_data (renderer->surface);
   dest_stride = cairo_image_surface_get_stride (renderer->surface);
 
+  transform = gimp_view_renderer_get_color_transform (renderer, widget,
+                                                      babl_format ("cairo-ARGB32"),
+                                                      babl_format ("cairo-ARGB32"));
+
+  if (transform)
+    gimp_color_transform_process_pixels (transform,
+                                         babl_format ("cairo-ARGB32"), buf,
+                                         babl_format ("cairo-ARGB32"), buf,
+                                         renderer->width);
+
   for (y = 0; y < renderer->height; y++, dest += dest_stride)
     {
       memcpy (dest, buf, renderer->width * 4);
diff --git a/app/widgets/gimpviewrendererpalette.c b/app/widgets/gimpviewrendererpalette.c
index cb73236..d320a20 100644
--- a/app/widgets/gimpviewrendererpalette.c
+++ b/app/widgets/gimpviewrendererpalette.c
@@ -82,6 +82,7 @@ gimp_view_renderer_palette_render (GimpViewRenderer *renderer,
 {
   GimpViewRendererPalette *renderpal = GIMP_VIEW_RENDERER_PALETTE (renderer);
   GimpPalette             *palette;
+  GimpColorTransform      *transform;
   guchar                  *row;
   guchar                  *dest;
   GList                   *list;
@@ -150,6 +151,10 @@ gimp_view_renderer_palette_render (GimpViewRenderer *renderer,
   dest        = cairo_image_surface_get_data (renderer->surface);
   dest_stride = cairo_image_surface_get_stride (renderer->surface);
 
+  transform = gimp_view_renderer_get_color_transform (renderer, widget,
+                                                      babl_format ("cairo-RGB24"),
+                                                      babl_format ("cairo-RGB24"));
+
   for (y = 0; y < renderer->height; y++)
     {
       if ((y % renderpal->cell_height) == 0)
@@ -200,7 +205,19 @@ gimp_view_renderer_palette_render (GimpViewRenderer *renderer,
         }
       else
         {
-          memcpy (dest, row, renderer->width * 4);
+          if (transform)
+            {
+              gimp_color_transform_process_pixels (transform,
+                                                   babl_format ("cairo-RGB24"),
+                                                   row,
+                                                   babl_format ("cairo-RGB24"),
+                                                   dest,
+                                                   renderer->width);
+            }
+          else
+            {
+              memcpy (dest, row, renderer->width * 4);
+            }
         }
 
       dest += dest_stride;