[gimp] app: remove clamps from addition, subtract and grain blend modes

[Øyvind Kolås <ok src gnome org>]

commit f01374798ece3cf15f9f68a0b1cd40cab95e92c6
Author: Øyvind Kolås <pippin gimp org>
Date:   Sat Jan 14 21:06:03 2017 +0100

    app: remove clamps from addition, subtract and grain blend modes

 app/operations/layer-modes/gimpoperationaddition.c |    1 -
 .../layer-modes/gimpoperationgrainextract.c        |    1 -
 .../layer-modes/gimpoperationgrainmerge.c          |    1 -
 app/operations/layer-modes/gimpoperationsubtract.c |    1 -
 4 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/app/operations/layer-modes/gimpoperationaddition.c 
b/app/operations/layer-modes/gimpoperationaddition.c
index 27a7c79..df412f9 100644
--- a/app/operations/layer-modes/gimpoperationaddition.c
+++ b/app/operations/layer-modes/gimpoperationaddition.c
@@ -109,7 +109,6 @@ gimp_operation_addition_process_pixels (gfloat              *in,
               gfloat comp = in[b] + layer[b];
 
               out[b] = comp * comp_alpha + in[b] * (1.0 - comp_alpha);
-              out[b] = CLAMP (out[b], 0.0, 1.0);
             }
         }
       else
diff --git a/app/operations/layer-modes/gimpoperationgrainextract.c 
b/app/operations/layer-modes/gimpoperationgrainextract.c
index 05c0793..a298f99 100644
--- a/app/operations/layer-modes/gimpoperationgrainextract.c
+++ b/app/operations/layer-modes/gimpoperationgrainextract.c
@@ -110,7 +110,6 @@ gimp_operation_grain_extract_process_pixels (gfloat              *in,
               gfloat comp = in[b] - layer[b] + 0.5;
 
               out[b] = comp * comp_alpha + in[b] * (1.0 - comp_alpha);
-              out[b] = CLAMP (out[b], 0.0, 1.0);
             }
         }
       else
diff --git a/app/operations/layer-modes/gimpoperationgrainmerge.c 
b/app/operations/layer-modes/gimpoperationgrainmerge.c
index cd626fb..f822225 100644
--- a/app/operations/layer-modes/gimpoperationgrainmerge.c
+++ b/app/operations/layer-modes/gimpoperationgrainmerge.c
@@ -109,7 +109,6 @@ gimp_operation_grain_merge_process_pixels (gfloat              *in,
               gfloat comp = in[b] + layer[b] - 0.5;
 
               out[b] = comp * comp_alpha + in[b] * (1.0 - comp_alpha);
-              out[b] = CLAMP (out[b], 0.0, 1.0);
             }
         }
       else
diff --git a/app/operations/layer-modes/gimpoperationsubtract.c 
b/app/operations/layer-modes/gimpoperationsubtract.c
index 152c615..6fbc5e4 100644
--- a/app/operations/layer-modes/gimpoperationsubtract.c
+++ b/app/operations/layer-modes/gimpoperationsubtract.c
@@ -108,7 +108,6 @@ gimp_operation_subtract_process_pixels (gfloat              *in,
             {
               gfloat comp = in[b] - layer[b];
               out[b] = comp * comp_alpha + in[b] * (1.0 - comp_alpha);
-              out[b] = CLAMP(out[b], 0.0, 1.0);
             }
         }
       else