[gimp] app: indentation and formatting cleanup in gimpblendcomposite.h



commit bfdea93a9c5b87f47c63dcca1d26bb14a21a3c3b
Author: Michael Natterer <mitch gimp org>
Date:   Thu Jan 19 14:31:40 2017 +0100

    app: indentation and formatting cleanup in gimpblendcomposite.h
    
    Also remove all includes, they should already be there when this
    header gets included.

 app/operations/layer-modes/gimpblendcomposite.h |  921 ++++++++++++----------
 1 files changed, 502 insertions(+), 419 deletions(-)
---
diff --git a/app/operations/layer-modes/gimpblendcomposite.h b/app/operations/layer-modes/gimpblendcomposite.h
index 7483e21..b369354 100644
--- a/app/operations/layer-modes/gimpblendcomposite.h
+++ b/app/operations/layer-modes/gimpblendcomposite.h
@@ -20,14 +20,6 @@
 #define __GIMP_BLEND_COMPOSITE_H__
 
 
-#include <gegl-plugin.h>
-#include <math.h>
-#include <alloca.h>
-#include <cairo.h>
-#include <gdk-pixbuf/gdk-pixbuf.h>
-#include "../operations-enums.h"
-#include "../operations-types.h"
-#include "libgimpcolor/gimpcolor.h"
 extern const Babl *_gimp_fish_rgba_to_perceptual;
 extern const Babl *_gimp_fish_perceptual_to_rgba;
 extern const Babl *_gimp_fish_perceptual_to_laba;
@@ -35,6 +27,7 @@ extern const Babl *_gimp_fish_rgba_to_laba;
 extern const Babl *_gimp_fish_laba_to_rgba;
 extern const Babl *_gimp_fish_laba_to_perceptual;
 
+
 static inline void
 compfun_src_atop (gfloat *in,
                   gfloat *layer,
@@ -46,27 +39,30 @@ compfun_src_atop (gfloat *in,
   while (samples--)
     {
       gfloat comp_alpha = layer[ALPHA] * opacity;
+
       if (mask)
         comp_alpha *= *mask;
- 
+
       if (comp_alpha == 0.0f)
         {
           out[RED]   = in[RED];
           out[GREEN] = in[GREEN];
           out[BLUE]  = in[BLUE];
         }
-        else
+      else
         {
-          gint   b;
+          gint b;
+
           for (b = RED; b < ALPHA; b++)
             out[b] = layer[b] * comp_alpha + in[b] * (1.0f - comp_alpha);
         }
+
       out[ALPHA] = in[ALPHA];
- 
+
       in    += 4;
       out   += 4;
       layer += 4;
- 
+
       if (mask)
         mask++;
     }
@@ -85,32 +81,34 @@ compfun_src_over (gfloat *in,
     {
       gfloat new_alpha;
       gfloat comp_alpha = layer[ALPHA] * opacity;
+
       if (mask)
         comp_alpha *= *mask;
- 
+
       new_alpha = comp_alpha + (1.0f - comp_alpha) * in[ALPHA];
- 
+
       if (comp_alpha == 0.0f || new_alpha == 0.0f)
         {
           out[RED]   = in[RED];
           out[GREEN] = in[GREEN];
           out[BLUE]  = in[BLUE];
         }
-        else
+      else
         {
-          gint   b;
           gfloat ratio = comp_alpha / new_alpha;
+          gint   b;
+
           for (b = RED; b < ALPHA; b++)
             out[b] = ratio * (in[ALPHA] * (comp[b] - layer[b]) + layer[b] - in[b]) + in[b];
         }
- 
+
       out[ALPHA] = new_alpha;
- 
+
       in    += 4;
       layer += 4;
       comp  += 4;
       out   += 4;
- 
+
       if (mask)
         mask++;
     }
@@ -128,9 +126,10 @@ compfun_src_in (gfloat *in,
   while (samples--)
     {
       gfloat new_alpha = in[ALPHA] * layer[ALPHA] * opacity;
+
       if (mask)
         new_alpha *= *mask;
- 
+
       if (new_alpha == 0.0f)
         {
           out[RED]   = in[RED];
@@ -143,11 +142,13 @@ compfun_src_in (gfloat *in,
           out[GREEN] = layer[GREEN];
           out[BLUE]  = layer[BLUE];
         }
+
       out[ALPHA] = new_alpha;
+
       in    += 4;
       out   += 4;
       layer += 4;
- 
+
       if (mask)
         mask++;
     }
@@ -175,14 +176,14 @@ gimp_composite_blend (gfloat                *in,
   const Babl *fish_to_blend       = NULL;
   const Babl *fish_to_composite   = NULL;
   const Babl *fish_from_composite = NULL;
- 
+
   switch (blend_trc)
-  {
+    {
     default:
     case GIMP_LAYER_BLEND_RGB_LINEAR:
       fish_to_blend   =  NULL;
       switch (composite_trc)
-      {
+        {
         case GIMP_LAYER_BLEND_LAB:
           fish_to_composite   = _gimp_fish_rgba_to_laba;
           fish_from_composite = _gimp_fish_laba_to_rgba;
@@ -195,12 +196,13 @@ gimp_composite_blend (gfloat                *in,
           fish_to_composite   = _gimp_fish_rgba_to_perceptual;
           fish_from_composite = _gimp_fish_perceptual_to_rgba;
           break;
-      }
+        }
       break;
+
     case GIMP_LAYER_BLEND_LAB:
       fish_to_blend   = _gimp_fish_rgba_to_laba;
       switch (composite_trc)
-      {
+        {
         case GIMP_LAYER_BLEND_LAB:
         default:
           fish_to_composite = NULL;
@@ -213,12 +215,13 @@ gimp_composite_blend (gfloat                *in,
           fish_to_composite = _gimp_fish_laba_to_perceptual;
           fish_from_composite = _gimp_fish_perceptual_to_rgba;
           break;
-      }
+        }
       break;
+
     case GIMP_LAYER_BLEND_RGB_PERCEPTUAL:
       fish_to_blend = _gimp_fish_rgba_to_perceptual;
       switch (composite_trc)
-      {
+        {
         case GIMP_LAYER_BLEND_LAB:
         default:
           fish_to_composite = _gimp_fish_perceptual_to_laba;
@@ -231,21 +234,21 @@ gimp_composite_blend (gfloat                *in,
           fish_to_composite = NULL;
           fish_from_composite = _gimp_fish_perceptual_to_rgba;
           break;
-      }
+        }
       break;
-  }
+    }
 
   if (in == out) /* in-place detected, avoid clobbering since we need to
                     read it for the compositing stage  */
-    blend_out = alloca (sizeof (gfloat) * 4 * samples);
+    blend_out = g_alloca (sizeof (gfloat) * 4 * samples);
 
   if (fish_to_blend)
-  {
-    blend_in    = alloca (sizeof (gfloat) * 4 * samples);
-    blend_layer = alloca (sizeof (gfloat) * 4 * samples);
-    babl_process (fish_to_blend, in,    blend_in,  samples);
-    babl_process (fish_to_blend, layer, blend_layer,  samples);
-  }
+    {
+      blend_in    = g_alloca (sizeof (gfloat) * 4 * samples);
+      blend_layer = g_alloca (sizeof (gfloat) * 4 * samples);
+      babl_process (fish_to_blend, in,    blend_in,  samples);
+      babl_process (fish_to_blend, layer, blend_layer,  samples);
+    }
 
   blendfun (blend_in, blend_layer, blend_out, samples);
 
@@ -254,35 +257,38 @@ gimp_composite_blend (gfloat                *in,
       babl_process (fish_to_composite, blend_in, blend_in,   samples);
       babl_process (fish_to_composite, blend_out, blend_out, samples);
     }
- 
+
   switch (composite_mode)
-  {
+    {
     case GIMP_LAYER_COMPOSITE_SRC_ATOP:
     default:
       compfun_src_atop (blend_in, blend_out, mask, opacity, out, samples);
       break;
+
     case GIMP_LAYER_COMPOSITE_SRC_OVER:
       if (fish_to_composite)
         babl_process (fish_to_composite, blend_layer, blend_layer,  samples);
       compfun_src_over (blend_in, blend_layer, blend_out, mask, opacity, out, samples);
       break;
+
     case GIMP_LAYER_COMPOSITE_DST_ATOP:
       if (fish_to_composite)
         babl_process (fish_to_composite, blend_layer, blend_layer,  samples);
 
       compfun_src_atop (blend_out, blend_in, mask, opacity, out, samples); /* swapped arguments */
       break;
+
     case GIMP_LAYER_COMPOSITE_SRC_IN:
       compfun_src_in (blend_in, blend_out, mask, opacity, out, samples);
       break;
-  }
+    }
 
   if (fish_from_composite)
-  {
-    babl_process (fish_from_composite, out, out, samples);
-  }
+    {
+      babl_process (fish_from_composite, out, out, samples);
+    }
 }
- 
+
 static inline void
 blendfun_screen (const float *dest,
                  const float *src,
@@ -290,18 +296,21 @@ blendfun_screen (const float *dest,
                  int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
     {
-      int c;
-      for (c = 0; c < 3; c++)
-        out[c] = 1.0f - (1.0f - dest[c])   * (1.0f - src[c]);
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            out[c] = 1.0f - (1.0f - dest[c])   * (1.0f - src[c]);
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -311,18 +320,21 @@ blendfun_addition (const float *dest,
                    int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
     {
-      int c;
-      for (c = 0; c < 3; c++)
-        out[c] = dest[c] + src[c];
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            out[c] = dest[c] + src[c];
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -332,18 +344,21 @@ blendfun_subtract (const float *dest,
                    int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
     {
-      int c;
-      for (c = 0; c < 3; c++)
-        out[c] = dest[c] - src[c];
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            out[c] = dest[c] - src[c];
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -353,18 +368,21 @@ blendfun_multiply (const float *dest,
                    int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
     {
-      int c;
-      for (c = 0; c < 3; c++)
-        out[c] = dest[c] * src[c];
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            out[c] = dest[c] * src[c];
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -374,18 +392,21 @@ blendfun_normal (const float *dest,
                  int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
     {
-      int c;
-      for (c = 0; c < 3; c++)
-        out[c] = src[c];
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            out[c] = src[c];
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -395,23 +416,28 @@ blendfun_burn (const float *dest,
                int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      int c;
-      for (c = 0; c < 3; c++)
-      {
-        gfloat comp = 1.0f - (1.0f - dest[c]) / src[c];
-        /* The CLAMP macro is deliberately inlined and written to map comp ==
-         * NAN (0 / 0) -> 1 */
-        out[c] = comp < 0 ? 0.0f : comp < 1.0f ? comp : 1.0f;
-      }
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            {
+              gfloat comp = 1.0f - (1.0f - dest[c]) / src[c];
+
+              /* The CLAMP macro is deliberately inlined and written
+               * to map comp == NAN (0 / 0) -> 1
+               */
+              out[c] = comp < 0 ? 0.0f : comp < 1.0f ? comp : 1.0f;
+            }
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -421,20 +447,21 @@ blendfun_darken_only (const float *dest,
                       int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      int c;
-      for (c = 0; c < 3; c++)
-      {
-        out[c] = MIN(dest[c], src[c]);
-      }
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            out[c] = MIN (dest[c], src[c]);
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -444,20 +471,21 @@ blendfun_lighten_only (const float *dest,
                        int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      int c;
-      for (c = 0; c < 3; c++)
-      {
-        out[c] = MAX(dest[c], src[c]);
-      }
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            out[c] = MAX (dest[c], src[c]);
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -467,22 +495,26 @@ blendfun_difference (const float *dest,
                      int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      int c;
-      for (c = 0; c < 3; c++)
-      {
-        out[c] = dest[c] - src[c];
-        if (out[c] < 0)
-          out[c] = -out[c];
-      }
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            {
+              out[c] = dest[c] - src[c];
+
+              if (out[c] < 0)
+                out[c] = -out[c];
+            }
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -492,29 +524,33 @@ blendfun_divide (const float *dest,
                  int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      int c;
-      for (c = 0; c < 3; c++)
-      {
-        gfloat comp = dest[c] / src[c];
-
-        /* make infinities(or NaN) correspond to a high number, to get more
-         * predictable math, ideally higher than 5.0 but it seems like some
-         * babl conversions might be acting up then
-         */ 
-        if (!(comp > -42949672.0f && comp < 5.0f)) 
-          comp = 5.0f; 
-
-        out[c] = comp;
-      }
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            {
+              gfloat comp = dest[c] / src[c];
+
+              /* make infinities(or NaN) correspond to a high number,
+               * to get more predictable math, ideally higher than 5.0
+               * but it seems like some babl conversions might be
+               * acting up then
+               */
+              if (!(comp > -42949672.0f && comp < 5.0f))
+                comp = 5.0f;
+
+              out[c] = comp;
+            }
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -524,26 +560,29 @@ blendfun_dodge (const float *dest,
                 int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
     {
-      int c;
-      for (c = 0; c < 3; c++)
-      {
-        gfloat comp = dest[c] / (1.0f - src[c]);
-        comp = MIN (comp, 1.0f);
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            {
+              gfloat comp = dest[c] / (1.0f - src[c]);
+
+              comp = MIN (comp, 1.0f);
+
+              out[c] = comp;
+            }
+        }
+
+      out[ALPHA] = src[ALPHA];
 
-        out[c] = comp;
-      }
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
-
 static inline void
 blendfun_grain_extract (const float *dest,
                         const float *src,
@@ -551,20 +590,21 @@ blendfun_grain_extract (const float *dest,
                         int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      int c;
-      for (c = 0; c < 3; c++)
-      {
-        out[c] = dest[c] - src[c] + 0.5f;
-      }
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            out[c] = dest[c] - src[c] + 0.5f;
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -574,23 +614,23 @@ blendfun_grain_merge (const float *dest,
                       int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      int c;
-      for (c = 0; c < 3; c++)
-      {
-        out[c] = dest[c] + src[c] - 0.5f;
-      }
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            out[c] = dest[c] + src[c] - 0.5f;
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
-
 static inline void
 blendfun_hardlight (const float *dest,
                     const float *src,
@@ -598,31 +638,36 @@ blendfun_hardlight (const float *dest,
                     int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      int c;
-      for (c = 0; c < 3; c++)
-      {
-        gfloat comp;
-        if (src[c] > 0.5f)
-          {
-             comp = (1.0f - dest[c]) * (1.0f - (src[c] - 0.5f) * 2.0f);
-             comp = MIN (1 - comp, 1);
-          }
-        else
-          {
-             comp = dest[c] * (src[c] * 2.0f);
-             comp = MIN (comp, 1.0f);
-          }
-        out[c] = comp;
-      }
-      out[ALPHA] = src[ALPHA];
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            {
+              gfloat comp;
+
+              if (src[c] > 0.5f)
+                {
+                  comp = (1.0f - dest[c]) * (1.0f - (src[c] - 0.5f) * 2.0f);
+                  comp = MIN (1 - comp, 1);
+                }
+              else
+                {
+                  comp = dest[c] * (src[c] * 2.0f);
+                  comp = MIN (comp, 1.0f);
+                }
+
+              out[c] = comp;
+            }
+
+          out[ALPHA] = src[ALPHA];
+        }
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -632,26 +677,29 @@ blendfun_softlight (const float *dest,
                     int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      int c;
-      for (c = 0; c < 3; c++)
-      {
-        gfloat multiply = dest[c] * src[c];
-        gfloat screen = 1.0f - (1.0f - dest[c]) * (1.0f - src[c]);
-        gfloat comp = (1.0f - src[c]) * multiply + dest[c] * screen;
-        out[c] = comp;
-      }
-      out[ALPHA] = src[ALPHA];
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            {
+              gfloat multiply = dest[c] * src[c];
+              gfloat screen   = 1.0f - (1.0f - dest[c]) * (1.0f - src[c]);
+              gfloat comp     = (1.0f - src[c]) * multiply + dest[c] * screen;
+
+              out[c] = comp;
+            }
+
+          out[ALPHA] = src[ALPHA];
+        }
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
-
 static inline void
 blendfun_overlay (const float *dest,
                   const float *src,
@@ -659,29 +707,34 @@ blendfun_overlay (const float *dest,
                   int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      int c;
-      for (c = 0; c < 3; c++)
-      {
-        gfloat comp;
-        if (src[c] < 0.5f)
-          {
-             comp = 2.0f * dest[c] * src[c];
-          }
-        else
-          {
-             comp = 1.0f - 2.0f * (1.0f - src[c]) * (1.0f - dest[c]);
-          }
-        out[c] = comp;
-      }
-      out[ALPHA] = src[ALPHA];
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          gint c;
+
+          for (c = 0; c < 3; c++)
+            {
+              gfloat comp;
+
+              if (src[c] < 0.5f)
+                {
+                  comp = 2.0f * dest[c] * src[c];
+                }
+              else
+                {
+                  comp = 1.0f - 2.0f * (1.0f - src[c]) * (1.0f - dest[c]);
+                }
+
+              out[c] = comp;
+            }
+
+          out[ALPHA] = src[ALPHA];
+        }
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -691,26 +744,32 @@ blendfun_hsv_color (const float *dest,
                     int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      GimpRGB dest_rgb = {dest[0], dest[1], dest[2]};
-      GimpRGB src_rgb  = {src[0], src[1], src[2]};
-      GimpHSL src_hsl, dest_hsl;
-      gimp_rgb_to_hsl (&dest_rgb, &dest_hsl);
-      gimp_rgb_to_hsl (&src_rgb, &src_hsl);
-      dest_hsl.h = src_hsl.h;
-      dest_hsl.s = src_hsl.s;
-      gimp_hsl_to_rgb (&dest_hsl, &dest_rgb);
-      out[RED]   = dest_rgb.r;
-      out[GREEN] = dest_rgb.g;
-      out[BLUE]  = dest_rgb.b;
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          GimpRGB dest_rgb = { dest[0], dest[1], dest[2] };
+          GimpRGB src_rgb  = { src[0], src[1], src[2] };
+          GimpHSL src_hsl, dest_hsl;
+
+          gimp_rgb_to_hsl (&dest_rgb, &dest_hsl);
+          gimp_rgb_to_hsl (&src_rgb, &src_hsl);
+
+          dest_hsl.h = src_hsl.h;
+          dest_hsl.s = src_hsl.s;
+
+          gimp_hsl_to_rgb (&dest_hsl, &dest_rgb);
+
+          out[RED]   = dest_rgb.r;
+          out[GREEN] = dest_rgb.g;
+          out[BLUE]  = dest_rgb.b;
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -720,25 +779,30 @@ blendfun_hsv_hue (const float *dest,
                   int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      GimpRGB dest_rgb = {dest[0], dest[1], dest[2]};
-      GimpRGB src_rgb  = {src[0], src[1], src[2]};
-      GimpHSV src_hsv, dest_hsv;
-      gimp_rgb_to_hsv (&dest_rgb, &dest_hsv);
-      gimp_rgb_to_hsv (&src_rgb, &src_hsv);
-      dest_hsv.h = src_hsv.h;
-      gimp_hsv_to_rgb (&dest_hsv, &dest_rgb);
-      out[RED]   = dest_rgb.r;
-      out[GREEN] = dest_rgb.g;
-      out[BLUE]  = dest_rgb.b;
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          GimpRGB dest_rgb = { dest[0], dest[1], dest[2] };
+          GimpRGB src_rgb  = { src[0], src[1], src[2] };
+          GimpHSV src_hsv, dest_hsv;
+
+          gimp_rgb_to_hsv (&dest_rgb, &dest_hsv);
+          gimp_rgb_to_hsv (&src_rgb, &src_hsv);
+
+          dest_hsv.h = src_hsv.h;
+          gimp_hsv_to_rgb (&dest_hsv, &dest_rgb);
+
+          out[RED]   = dest_rgb.r;
+          out[GREEN] = dest_rgb.g;
+          out[BLUE]  = dest_rgb.b;
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -748,25 +812,30 @@ blendfun_hsv_saturation (const float *dest,
                          int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      GimpRGB dest_rgb = {dest[0], dest[1], dest[2]};
-      GimpRGB src_rgb  = {src[0], src[1], src[2]};
-      GimpHSV src_hsv, dest_hsv;
-      gimp_rgb_to_hsv (&dest_rgb, &dest_hsv);
-      gimp_rgb_to_hsv (&src_rgb, &src_hsv);
-      dest_hsv.s = src_hsv.s;
-      gimp_hsv_to_rgb (&dest_hsv, &dest_rgb);
-      out[RED]   = dest_rgb.r;
-      out[GREEN] = dest_rgb.g;
-      out[BLUE]  = dest_rgb.b;
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          GimpRGB dest_rgb = { dest[0], dest[1], dest[2] };
+          GimpRGB src_rgb  = { src[0], src[1], src[2] };
+          GimpHSV src_hsv, dest_hsv;
+
+          gimp_rgb_to_hsv (&dest_rgb, &dest_hsv);
+          gimp_rgb_to_hsv (&src_rgb, &src_hsv);
+
+          dest_hsv.s = src_hsv.s;
+          gimp_hsv_to_rgb (&dest_hsv, &dest_rgb);
+
+          out[RED]   = dest_rgb.r;
+          out[GREEN] = dest_rgb.g;
+          out[BLUE]  = dest_rgb.b;
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -776,25 +845,30 @@ blendfun_hsv_value (const float *dest,
                     int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
-    {
-      GimpRGB dest_rgb = {dest[0], dest[1], dest[2]};
-      GimpRGB src_rgb  = {src[0], src[1], src[2]};
-      GimpHSV src_hsv, dest_hsv;
-      gimp_rgb_to_hsv (&dest_rgb, &dest_hsv);
-      gimp_rgb_to_hsv (&src_rgb, &src_hsv);
-      dest_hsv.v = src_hsv.v;
-      gimp_hsv_to_rgb (&dest_hsv, &dest_rgb);
-      out[RED]   = dest_rgb.r;
-      out[GREEN] = dest_rgb.g;
-      out[BLUE]  = dest_rgb.b;
+    {
+      if (src[ALPHA] != 0.0f)
+        {
+          GimpRGB dest_rgb = { dest[0], dest[1], dest[2] };
+          GimpRGB src_rgb  = { src[0], src[1], src[2] };
+          GimpHSV src_hsv, dest_hsv;
+
+          gimp_rgb_to_hsv (&dest_rgb, &dest_hsv);
+          gimp_rgb_to_hsv (&src_rgb, &src_hsv);
+
+          dest_hsv.v = src_hsv.v;
+          gimp_hsv_to_rgb (&dest_hsv, &dest_rgb);
+
+          out[RED]   = dest_rgb.r;
+          out[GREEN] = dest_rgb.g;
+          out[BLUE]  = dest_rgb.b;
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -804,30 +878,33 @@ blendfun_lch_chroma (const float *dest,
                      int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
     {
-      gfloat A1 = dest[1];
-      gfloat B1 = dest[2];
-      gfloat c1 = hypotf (A1, B1);
-
-      if (c1 != 0.0f)
+      if (src[ALPHA] != 0.0f)
         {
-          gfloat A2 = src[1];
-          gfloat B2 = src[2];
-          gfloat c2 = hypotf (A2, B2);
-          gfloat A  = c2 * A1 / c1;
-          gfloat B  = c2 * B1 / c1;
-          out[0] = dest[0];
-          out[1] = A;
-          out[2] = B;
+          gfloat A1 = dest[1];
+          gfloat B1 = dest[2];
+          gfloat c1 = hypotf (A1, B1);
+
+          if (c1 != 0.0f)
+            {
+              gfloat A2 = src[1];
+              gfloat B2 = src[2];
+              gfloat c2 = hypotf (A2, B2);
+              gfloat A  = c2 * A1 / c1;
+              gfloat B  = c2 * B1 / c1;
+
+              out[0] = dest[0];
+              out[1] = A;
+              out[2] = B;
+            }
         }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[ALPHA] = src[ALPHA];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -837,17 +914,19 @@ blendfun_lch_color (const float *dest,
                     int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
     {
-      out[0] = dest[0];
-      out[1] = src[1];
-      out[2] = src[2];
-    }
-    out[3] = src[3];
-    out  += 4;
-    src  += 4;
-    dest += 4;
+      if (src[ALPHA] != 0.0f)
+        {
+          out[0] = dest[0];
+          out[1] = src[1];
+          out[2] = src[2];
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
   }
 }
 
@@ -858,37 +937,39 @@ blendfun_lch_hue (const float *dest,
                   int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
     {
-      gfloat A2 = src[1];
-      gfloat B2 = src[2];
-      gfloat c2 = hypotf (A2, B2);
-
-      if (c2 > 0.1f)
+      if (src[ALPHA] != 0.0f)
         {
-          gfloat A1 = dest[1];
-          gfloat B1 = dest[2];
-          gfloat c1 = hypotf (A1, B1);
-          gfloat A = c1 * A2 / c2;
-          gfloat B = c1 * B2 / c2;
+          gfloat A2 = src[1];
+          gfloat B2 = src[2];
+          gfloat c2 = hypotf (A2, B2);
 
-          out[0] = dest[0];
-          out[1] = A;
-          out[2] = B;
-        }
-      else
-        {
-          out[0] = dest[0];
-          out[1] = dest[1];
-          out[2] = dest[2];
+          if (c2 > 0.1f)
+            {
+              gfloat A1 = dest[1];
+              gfloat B1 = dest[2];
+              gfloat c1 = hypotf (A1, B1);
+              gfloat A  = c1 * A2 / c2;
+              gfloat B  = c1 * B2 / c2;
+
+              out[0] = dest[0];
+              out[1] = A;
+              out[2] = B;
+            }
+          else
+            {
+              out[0] = dest[0];
+              out[1] = dest[1];
+              out[2] = dest[2];
+            }
         }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[3] = src[3];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
 static inline void
@@ -898,18 +979,20 @@ blendfun_lch_lightness (const float *dest,
                         int          samples)
 {
   while (samples--)
-  {
-    if (src[ALPHA] != 0.0f)
     {
-      out[0] = src[0];
-      out[1] = dest[1];
-      out[2] = dest[2];
+      if (src[ALPHA] != 0.0f)
+        {
+          out[0] = src[0];
+          out[1] = dest[1];
+          out[2] = dest[2];
+        }
+
+      out[ALPHA] = src[ALPHA];
+
+      out  += 4;
+      src  += 4;
+      dest += 4;
     }
-    out[3] = src[3];
-    out  += 4;
-    src  += 4;
-    dest += 4;
-  }
 }
 
-#endif
+#endif /* __GIMP_BLEND_COMPOSITE_H__ */


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