[gegl] buffer: make babl_fish_get_process optional

[Øyvind "pippin" Kolås <ok src gnome org>]

commit e1a365be36c8fb9fe74382a417ef1c6f2521093e
Author: Øyvind Kolås <pippin gimp org>
Date:   Tue Apr 26 00:00:45 2022 +0200

    buffer: make babl_fish_get_process optional
    
    This to easier permit building GIMP-2.10 on some older distros.

 gegl/buffer/gegl-sampler-cubic.c   | 7 ++++++-
 gegl/buffer/gegl-sampler-linear.c  | 7 ++++++-
 gegl/buffer/gegl-sampler-lohalo.c  | 7 ++++++-
 gegl/buffer/gegl-sampler-nearest.c | 9 ++++++++-
 gegl/buffer/gegl-sampler-nohalo.c  | 7 ++++++-
 gegl/buffer/gegl-sampler.c         | 2 ++
 gegl/buffer/gegl-sampler.h         | 2 ++
 7 files changed, 36 insertions(+), 5 deletions(-)
---
diff --git a/gegl/buffer/gegl-sampler-cubic.c b/gegl/buffer/gegl-sampler-cubic.c
index 8bdce5483..d1847865b 100644
--- a/gegl/buffer/gegl-sampler-cubic.c
+++ b/gegl/buffer/gegl-sampler-cubic.c
@@ -227,7 +227,12 @@ gegl_sampler_cubic_get (      GeglSampler       *self,
     gegl_sampler_cubic_interpolate (self, absolute_x, absolute_y, result,
                                     repeat_mode);
 
-    self->fish_process (self->fish, (void*)result, (void*)output, 1, NULL);
+#if (BABL_MINOR_VERSION >=1) && (BABL_MICRO_VERSION >= 90)
+    self->fish_process 
+#else
+    babl_process
+#endif
+    (self->fish, (void*)result, (void*)output, 1, NULL);
   }
 }
 
diff --git a/gegl/buffer/gegl-sampler-linear.c b/gegl/buffer/gegl-sampler-linear.c
index f8a6df8ab..e17d308d9 100644
--- a/gegl/buffer/gegl-sampler-linear.c
+++ b/gegl/buffer/gegl-sampler-linear.c
@@ -194,6 +194,11 @@ gegl_sampler_linear_get (      GeglSampler       *self,
     gegl_sampler_linear_interpolate (self, absolute_x, absolute_y, result,
                                      repeat_mode);
 
-    self->fish_process (self->fish, (void*)result, (void*)output, 1, NULL);
+#if (BABL_MINOR_VERSION >=1) && (BABL_MICRO_VERSION >= 90)
+    self->fish_process 
+#else
+    babl_process
+#endif
+     (self->fish, (void*)result, (void*)output, 1, NULL);
   }
 }
diff --git a/gegl/buffer/gegl-sampler-lohalo.c b/gegl/buffer/gegl-sampler-lohalo.c
index 0d0ebb41e..7fa944dd0 100644
--- a/gegl/buffer/gegl-sampler-lohalo.c
+++ b/gegl/buffer/gegl-sampler-lohalo.c
@@ -998,7 +998,12 @@ gegl_sampler_lohalo_get (      GeglSampler*    restrict  self,
     /*
      * Ship out the result:
      */
-    self->fish_process (self->fish, (void*)newval, (void*)output, 1, NULL);
+#if (BABL_MINOR_VERSION >=1) && (BABL_MICRO_VERSION >= 90)
+    self->fish_process 
+#else
+    babl_process
+#endif
+      (self->fish, (void*)newval, (void*)output, 1, NULL);
     return;
   }
 }
diff --git a/gegl/buffer/gegl-sampler-nearest.c b/gegl/buffer/gegl-sampler-nearest.c
index 770ac4a32..552efc33a 100644
--- a/gegl/buffer/gegl-sampler-nearest.c
+++ b/gegl/buffer/gegl-sampler-nearest.c
@@ -195,7 +195,12 @@ gegl_sampler_get_pixel (GeglSampler    *sampler,
         tp = gegl_tile_get_data (tile) +
              (offsety * tile_width + offsetx) * nearest_sampler->buffer_bpp;
 
-        sampler->fish_process (sampler->fish, (void*)tp, (void*)buf, 1, NULL);
+#if (BABL_MINOR_VERSION >=1) && (BABL_MICRO_VERSION >= 90)
+        sampler->fish_process
+#else
+        babl_proces
+#endif
+          (sampler->fish, (void*)tp, (void*)buf, 1, NULL);
       }
   }
 
@@ -224,5 +229,7 @@ gegl_sampler_nearest_prepare (GeglSampler* restrict sampler)
   GEGL_SAMPLER_NEAREST (sampler)->buffer_bpp = babl_format_get_bytes_per_pixel (sampler->buffer->format);
 
   sampler->fish = babl_fish (sampler->buffer->soft_format, sampler->format);
+#if (BABL_MINOR_VERSION >=1) && (BABL_MICRO_VERSION >= 90)
   sampler->fish_process = babl_fish_get_process (sampler->fish);
+#endif
 }
diff --git a/gegl/buffer/gegl-sampler-nohalo.c b/gegl/buffer/gegl-sampler-nohalo.c
index 7e0262944..f21ff2a79 100644
--- a/gegl/buffer/gegl-sampler-nohalo.c
+++ b/gegl/buffer/gegl-sampler-nohalo.c
@@ -1920,7 +1920,12 @@ gegl_sampler_nohalo_get (      GeglSampler*    restrict  self,
       /*
        * Ship out the result:
        */
-      self->fish_process (self->fish, (void*)newval, (void*)output, 1, NULL);
+#if (BABL_MINOR_VERSION >=1) && (BABL_MICRO_VERSION >= 90)
+      self->fish_process
+#else
+      babl_process
+#endif
+         (self->fish, (void*)newval, (void*)output, 1, NULL);
       return;
     }
   }
diff --git a/gegl/buffer/gegl-sampler.c b/gegl/buffer/gegl-sampler.c
index 6489f7b21..df7ca8260 100644
--- a/gegl/buffer/gegl-sampler.c
+++ b/gegl/buffer/gegl-sampler.c
@@ -267,7 +267,9 @@ gegl_sampler_prepare (GeglSampler *self)
   if (!self->fish)
   {
     self->fish = babl_fish (self->interpolate_format, self->format);
+#if (BABL_MINOR_VERSION >=1) && (BABL_MICRO_VERSION >= 90)
     self->fish_process = babl_fish_get_process (self->fish);
+#endif
   }
 
   /*
diff --git a/gegl/buffer/gegl-sampler.h b/gegl/buffer/gegl-sampler.h
index 39cd7a93f..e070a0869 100644
--- a/gegl/buffer/gegl-sampler.h
+++ b/gegl/buffer/gegl-sampler.h
@@ -90,7 +90,9 @@ struct _GeglSampler
   gint                       interpolate_components;
 
   GeglSamplerLevel           level[GEGL_SAMPLER_MIPMAP_LEVELS];
+#if (BABL_MINOR_VERSION >=1) && (BABL_MICRO_VERSION >= 90)
   BablFishProcess            fish_process;
+#endif
 };
 
 struct _GeglSamplerClass