framebuffer: Add _get_XYZ_bits() functions

This exposes the previously internal only
_cogl_framebuffer_get_red/green/blue/alpha_bits() functions as 2.0
experimental API.

Signed-off-by: Neil Roberts <neil@linux.intel.com>

cogl/cogl-framebuffer.c

@@ -1463,7 +1463,7 @@ _cogl_framebuffer_flush_state (CoglFramebuffer *draw_buffer,
 }
 
 int
-_cogl_framebuffer_get_red_bits (CoglFramebuffer *framebuffer)
+cogl_framebuffer_get_red_bits (CoglFramebuffer *framebuffer)
 {
   _cogl_framebuffer_init_bits (framebuffer);
 
@@ -1471,7 +1471,7 @@ _cogl_framebuffer_get_red_bits (CoglFramebuffer *framebuffer)
 }
 
 int
-_cogl_framebuffer_get_green_bits (CoglFramebuffer *framebuffer)
+cogl_framebuffer_get_green_bits (CoglFramebuffer *framebuffer)
 {
   _cogl_framebuffer_init_bits (framebuffer);
 
@@ -1479,7 +1479,7 @@ _cogl_framebuffer_get_green_bits (CoglFramebuffer *framebuffer)
 }
 
 int
-_cogl_framebuffer_get_blue_bits (CoglFramebuffer *framebuffer)
+cogl_framebuffer_get_blue_bits (CoglFramebuffer *framebuffer)
 {
   _cogl_framebuffer_init_bits (framebuffer);
 
@@ -1487,7 +1487,7 @@ _cogl_framebuffer_get_blue_bits (CoglFramebuffer *framebuffer)
 }
 
 int
-_cogl_framebuffer_get_alpha_bits (CoglFramebuffer *framebuffer)
+cogl_framebuffer_get_alpha_bits (CoglFramebuffer *framebuffer)
 {
   _cogl_framebuffer_init_bits (framebuffer);
 

cogl/cogl-framebuffer.h

@@ -87,6 +87,66 @@ void
 cogl_framebuffer_get_viewport4fv (CoglFramebuffer *framebuffer,
                                   float *viewport);
 
+/**
+ * cogl_framebuffer_get_red_bits:
+ * @framebuffer: a pointer to a #CoglFramebuffer
+ *
+ * Retrieves the number of red bits of @framebuffer
+ *
+ * Return value: the number of bits
+ *
+ * Since: 1.8
+ * Stability: unstable
+ */
+#define cogl_framebuffer_get_red_bits cogl_framebuffer_get_red_bits_EXP
+int
+cogl_framebuffer_get_red_bits (CoglFramebuffer *framebuffer);
+
+/**
+ * cogl_framebuffer_get_green_bits:
+ * @framebuffer: a pointer to a #CoglFramebuffer
+ *
+ * Retrieves the number of green bits of @framebuffer
+ *
+ * Return value: the number of bits
+ *
+ * Since: 1.8
+ * Stability: unstable
+ */
+#define cogl_framebuffer_get_green_bits cogl_framebuffer_get_green_bits_EXP
+int
+cogl_framebuffer_get_green_bits (CoglFramebuffer *framebuffer);
+
+/**
+ * cogl_framebuffer_get_blue_bits:
+ * @framebuffer: a pointer to a #CoglFramebuffer
+ *
+ * Retrieves the number of blue bits of @framebuffer
+ *
+ * Return value: the number of bits
+ *
+ * Since: 1.8
+ * Stability: unstable
+ */
+#define cogl_framebuffer_get_blue_bits cogl_framebuffer_get_blue_bits_EXP
+int
+cogl_framebuffer_get_blue_bits (CoglFramebuffer *framebuffer);
+
+/**
+ * cogl_framebuffer_get_alpha_bits:
+ * @framebuffer: a pointer to a #CoglFramebuffer
+ *
+ * Retrieves the number of alpha bits of @framebuffer
+ *
+ * Return value: the number of bits
+ *
+ * Since: 1.8
+ * Stability: unstable
+ */
+#define cogl_framebuffer_get_blue_bits cogl_framebuffer_get_blue_bits_EXP
+int
+cogl_framebuffer_get_alpha_bits (CoglFramebuffer *framebuffer);
+
 #define cogl_framebuffer_swap_buffers cogl_framebuffer_swap_buffers_EXP
 void
 cogl_framebuffer_swap_buffers (CoglFramebuffer *framebuffer);

cogl/cogl.c

@@ -407,16 +407,16 @@ cogl_get_bitmasks (int *red,
   framebuffer = cogl_get_draw_framebuffer ();
 
   if (red)
-    *red = _cogl_framebuffer_get_red_bits (framebuffer);
+    *red = cogl_framebuffer_get_red_bits (framebuffer);
 
   if (green)
-    *green = _cogl_framebuffer_get_green_bits (framebuffer);
+    *green = cogl_framebuffer_get_green_bits (framebuffer);
 
   if (blue)
-    *blue = _cogl_framebuffer_get_blue_bits (framebuffer);
+    *blue = cogl_framebuffer_get_blue_bits (framebuffer);
 
   if (alpha)
-    *alpha = _cogl_framebuffer_get_alpha_bits (framebuffer);
+    *alpha = cogl_framebuffer_get_alpha_bits (framebuffer);
 }
 
 void

cogl/cogl.h

@@ -206,58 +206,6 @@ cogl_get_bitmasks (int *red,
                    int *blue,
                    int *alpha);
 
-/*
- * _cogl_framebuffer_get_red_bits:
- * @framebuffer: a handle for a framebuffer
- *
- * Retrieves the number of red bits of @framebuffer
- *
- * Return value: the number of bits
- *
- * Since: 1.4
- */
-int
-_cogl_framebuffer_get_red_bits (CoglFramebuffer *framebuffer);
-
-/*
- * _cogl_framebuffer_get_green_bits:
- * @framebuffer: a handle for a framebuffer
- *
- * Retrieves the number of green bits of @framebuffer
- *
- * Return value: the number of bits
- *
- * Since: 1.4
- */
-int
-_cogl_framebuffer_get_green_bits (CoglFramebuffer *framebuffer);
-
-/*
- * _cogl_framebuffer_get_blue_bits:
- * @framebuffer: a handle for a framebuffer
- *
- * Retrieves the number of blue bits of @framebuffer
- *
- * Return value: the number of bits
- *
- * Since: 1.4
- */
-int
-_cogl_framebuffer_get_blue_bits (CoglFramebuffer *framebuffer);
-
-/*
- * _cogl_framebuffer_get_alpha_bits:
- * @framebuffer: a handle for a framebuffer
- *
- * Retrieves the number of alpha bits of @framebuffer
- *
- * Return value: the number of bits
- *
- * Since: 1.4
- */
-int
-_cogl_framebuffer_get_alpha_bits (CoglFramebuffer *framebuffer);
-
 /**
  * cogl_perspective:
  * @fovy: Vertical of view angle in degrees.