babl r312 - in trunk: . extensions

[jheller svn gnome org]

Author: jheller
Date: Tue May 20 14:38:02 2008
New Revision: 312
URL: http://svn.gnome.org/viewvc/babl?rev=312&view=rev

Log:
2008-05-20  Jan Heller  <jheller svn gnome org>

        * extensions/gimp-8bit.c (conv_rgbaF_linear_rgb8_linear),
        (conv_rgbaF_linear_rgba8_linear), (init): added naive versions
        of respective conversions.


Modified:
   trunk/ChangeLog
   trunk/extensions/gimp-8bit.c

Modified: trunk/extensions/gimp-8bit.c
==============================================================================
--- trunk/extensions/gimp-8bit.c	(original)
+++ trunk/extensions/gimp-8bit.c	Tue May 20 14:38:02 2008
@@ -296,6 +296,59 @@
   return samples;
 }
 
+static INLINE long
+conv_rgbaF_linear_rgb8_linear (unsigned char *src, 
+                               unsigned char *dst, 
+                               long           samples)
+{
+  float *fsrc = (float *) src;
+  long n = samples;
+  long int v;
+
+  while (n--)
+    {
+      v = rint (*fsrc++ * 255.0);
+      *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
+
+      v = rint (*fsrc++ * 255.0);
+      *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
+     
+      v = rint (*fsrc++ * 255.0);
+      *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
+
+      fsrc++;
+    }
+
+  return samples;
+}
+
+static INLINE long
+conv_rgbaF_linear_rgba8_linear (unsigned char *src, 
+                                unsigned char *dst, 
+                                long           samples)
+{
+  float *fsrc = (float *) src;
+  long n = samples;
+  long int v;
+
+  while (n--)
+    {
+      v = rint (*fsrc++ * 255.0);
+      *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
+
+      v = rint (*fsrc++ * 255.0);
+      *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
+     
+      v = rint (*fsrc++ * 255.0);
+      *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
+
+      v = rint (*fsrc++ * 255.0);
+      *dst++ = (v < 0) ? 0 : ((v > 255) ? 255 : v);
+    }
+
+  return samples;
+}
+
 int init (void);
 
 int
@@ -402,5 +455,9 @@
   o (g8_gamma_2_2, gF_linear);
   o (g8_linear, rgbaF_linear);
   o (g8_gamma_2_2, rgbaF_linear);
+
+  o (rgbaF_linear, rgb8_linear);
+  o (rgbaF_linear, rgba8_linear);
+
   return 0;
 }