[cogl/wip/pixel-format-2101010: 6/14] Remove COGL_UNPREMULT_MASK define

[Robert Bragg <rbragg src gnome org>]

commit 07f679a6f4944fda907e6cd0449a216dabeea4af
Author: Robert Bragg <robert linux intel com>
Date:   Mon Feb 13 22:23:27 2012 +0000

    Remove COGL_UNPREMULT_MASK define
    
    Since (A & ~COGL_PREMULT_BIT) is basically as readable as (A &
    COGL_UNPREMULT_MASK) this patch removes the mask define. Without the
    mask the code is slightly more explicit and there's less risk in error
    caused by us forgetting to update the COGL_UNPREMULT_MASK if the way
    CoglPixelFormat is defined evolves.

 cogl/cogl-bitmap-fallback.c                        |    7 +++----
 cogl/cogl-bitmap.c                                 |    4 ++--
 cogl/cogl-types.h                                  |    1 -
 .../cogl-2.0-experimental-sections.txt             |    1 -
 doc/reference/cogl/cogl-sections.txt               |    1 -
 5 files changed, 5 insertions(+), 9 deletions(-)
---
diff --git a/cogl/cogl-bitmap-fallback.c b/cogl/cogl-bitmap-fallback.c
index 1b5b8ca..be0cf04 100644
--- a/cogl/cogl-bitmap-fallback.c
+++ b/cogl/cogl-bitmap-fallback.c
@@ -374,8 +374,7 @@ _cogl_bitmap_fallback_convert (CoglBitmap      *src_bmp,
   dst_rowstride = sizeof(guint8) * dst_bpp * width;
   /* Copy the premult bit if the new format has an alpha channel */
   if ((dst_format & COGL_A_BIT))
-    dst_format = ((src_format & COGL_PREMULT_BIT) |
-                  (dst_format & COGL_UNPREMULT_MASK));
+    dst_format |= (src_format & COGL_PREMULT_BIT);
 
   /* Allocate a new buffer to hold converted data */
   dst_data = g_malloc (height * dst_rowstride);
@@ -391,7 +390,7 @@ _cogl_bitmap_fallback_convert (CoglBitmap      *src_bmp,
 	  /* FIXME: Would be nice to at least remove this inner
            * branching, but not sure it can be done without
            * rewriting of the whole loop */
-          switch (src_format & COGL_UNPREMULT_MASK)
+          switch (src_format & ~COGL_PREMULT_BIT)
 	    {
 	    case COGL_PIXEL_FORMAT_G_8:
 	      _cogl_g_to_rgba (src, temp_rgba); break;
@@ -411,7 +410,7 @@ _cogl_bitmap_fallback_convert (CoglBitmap      *src_bmp,
 	      break;
 	    }
 
-	  switch (dst_format & COGL_UNPREMULT_MASK)
+	  switch (dst_format & ~COGL_PREMULT_BIT)
 	    {
 	    case COGL_PIXEL_FORMAT_G_8:
 	      _cogl_rgba_to_g (temp_rgba, dst); break;
diff --git a/cogl/cogl-bitmap.c b/cogl/cogl-bitmap.c
index 84fd7ac..a4d0732 100644
--- a/cogl/cogl-bitmap.c
+++ b/cogl/cogl-bitmap.c
@@ -111,8 +111,8 @@ _cogl_bitmap_convert_format_and_premult (CoglBitmap *bmp,
   CoglBitmap *dst_bmp;
 
   /* Is base format different (not considering premult status)? */
-  if ((src_format & COGL_UNPREMULT_MASK) !=
-      (dst_format & COGL_UNPREMULT_MASK))
+  if ((src_format & ~COGL_PREMULT_BIT) !=
+      (dst_format & ~COGL_PREMULT_BIT))
     {
       /* Try converting using imaging library */
       if ((dst_bmp = _cogl_bitmap_convert (bmp, dst_format)) == NULL)
diff --git a/cogl/cogl-types.h b/cogl/cogl-types.h
index d60c4ac..c5d7592 100644
--- a/cogl/cogl-types.h
+++ b/cogl/cogl-types.h
@@ -170,7 +170,6 @@ typedef struct _CoglTextureVertex       CoglTextureVertex;
 #define COGL_AFIRST_BIT         (1 << 6)
 #define COGL_PREMULT_BIT        (1 << 7)
 #define COGL_UNORDERED_MASK     0x0F
-#define COGL_UNPREMULT_MASK     0x7F
 
 /**
  * CoglPixelFormat:
diff --git a/doc/reference/cogl-2.0-experimental/cogl-2.0-experimental-sections.txt b/doc/reference/cogl-2.0-experimental/cogl-2.0-experimental-sections.txt
index 8f7d3d7..861de90 100644
--- a/doc/reference/cogl-2.0-experimental/cogl-2.0-experimental-sections.txt
+++ b/doc/reference/cogl-2.0-experimental/cogl-2.0-experimental-sections.txt
@@ -164,7 +164,6 @@ COGL_PIXEL_FORMAT_24
 COGL_PIXEL_FORMAT_32
 COGL_PREMULT_BIT
 COGL_UNORDERED_MASK
-COGL_UNPREMULT_MASK
 </SECTION>
 
 <SECTION>
diff --git a/doc/reference/cogl/cogl-sections.txt b/doc/reference/cogl/cogl-sections.txt
index 7724049..962ec84 100644
--- a/doc/reference/cogl/cogl-sections.txt
+++ b/doc/reference/cogl/cogl-sections.txt
@@ -126,7 +126,6 @@ COGL_PIXEL_FORMAT_24
 COGL_PIXEL_FORMAT_32
 COGL_PREMULT_BIT
 COGL_UNORDERED_MASK
-COGL_UNPREMULT_MASK
 </SECTION>
 
 <SECTION>