cogl: improves header and coding style consistency

We've had complaints that our Cogl code/headers are a bit "special" so
this is a first pass at tidying things up by giving them some
consistency. These changes are all consistent with how new code in Cogl
is being written, but the style isn't consistently applied across all
code yet.

There are two parts to this patch; but since each one required a large
amount of effort to maintain tidy indenting it made sense to combine the
changes to reduce the time spent re indenting the same lines.

The first change is to use a consistent style for declaring function
prototypes in headers. Cogl headers now consistently use this style for
prototypes:

 return_type
 cogl_function_name (CoglType arg0,
                     CoglType arg1);

Not everyone likes this style, but it seems that most of the currently
active Cogl developers agree on it.

The second change is to constrain the use of redundant glib data types
in Cogl. Uses of gint, guint, gfloat, glong, gulong and gchar have all
been replaced with int, unsigned int, float, long, unsigned long and char
respectively. When talking about pixel data; use of guchar has been
replaced with guint8, otherwise unsigned char can be used.

The glib types that we continue to use for portability are gboolean,
gint{8,16,32,64}, guint{8,16,32,64} and gsize.

The general intention is that Cogl should look palatable to the widest
range of C programmers including those outside the Gnome community so
- especially for the public API - we want to minimize the number of
foreign looking typedefs.

cogl/cogl-buffer.h

@@ -70,7 +70,7 @@ cogl_is_buffer (CoglHandle handle);
  * Since: 1.2
  * Stability: Unstable
  */
-guint
+unsigned int
 cogl_buffer_get_size (CoglHandle handle);
 
 /**
@@ -85,7 +85,7 @@ cogl_buffer_get_size (CoglHandle handle);
  * Stability: Unstable
  */
 typedef enum { /*< prefix=COGL_BUFFER_USAGE_HINT >*/
- COGL_BUFFER_USAGE_HINT_TEXTURE,
+  COGL_BUFFER_USAGE_HINT_TEXTURE,
 } CoglBufferUsageHint;
 
 /**
@@ -148,7 +148,7 @@ typedef enum { /*< prefix=COGL_BUFFER_UPDATE_HINT >*/
  * Stability: Unstable
  */
 void
-cogl_buffer_set_update_hint (CoglHandle          handle,
+cogl_buffer_set_update_hint (CoglHandle           handle,
                              CoglBufferUpdateHint hint);
 
 /**
@@ -196,7 +196,7 @@ typedef enum { /*< prefix=COGL_BUFFER_ACCESS >*/
  * Since: 1.2
  * Stability: Unstable
  */
-guchar *
+guint8 *
 cogl_buffer_map (CoglHandle       handle,
                  CoglBufferAccess access);
 
@@ -230,9 +230,9 @@ cogl_buffer_unmap (CoglHandle handle);
  */
 gboolean
 cogl_buffer_set_data (CoglHandle    handle,
-                      gsize         offset,
-                      const guchar *data,
-                      gsize         size);
+                      gsize        offset,
+                      const guint8 *data,
+                      gsize        size);
 
 /* the functions above are experimental, the actual symbols are suffixed by
  * _EXP so we can ensure ABI compatibility and leave the cogl_buffer namespace
@@ -242,7 +242,7 @@ cogl_buffer_set_data (CoglHandle    handle,
 gboolean
 cogl_is_buffer_EXP (CoglHandle handle);
 
-guint
+unsigned int
 cogl_buffer_get_size_EXP (CoglHandle handle);
 
 void
@@ -253,13 +253,13 @@ CoglBufferUsageHint
 cogl_buffer_get_usage_hint_EXP (CoglHandle handle);
 
 void
-cogl_buffer_set_update_hint_EXP (CoglHandle          handle,
+cogl_buffer_set_update_hint_EXP (CoglHandle           handle,
                                  CoglBufferUpdateHint hint);
 
 CoglBufferUpdateHint
 cogl_buffer_get_update_hint_EXP (CoglHandle handle);
 
-guchar *
+guint8 *
 cogl_buffer_map_EXP (CoglHandle       handle,
                      CoglBufferAccess access);
 
@@ -268,9 +268,9 @@ cogl_buffer_unmap_EXP (CoglHandle handle);
 
 gboolean
 cogl_buffer_set_data_EXP (CoglHandle    handle,
-                          gsize         offset,
-                          const guchar *data,
-                          gsize         size);
+                          gsize        offset,
+                          const guint8 *data,
+                          gsize        size);
 
 #define cogl_is_buffer  cogl_is_buffer_EXP
 #define cogl_buffer_get_size cogl_buffer_get_size_EXP