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Remove COGL_UNPREMULT_MASK define

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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.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
This commit is contained in:
Robert Bragg 2012-02-13 22:23:27 +00:00
parent 07e972505c
commit a203a5e396
5 changed files with 5 additions and 8 deletions
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6
cogl/cogl-bitmap-fallback.c
View file

@ -375,7 +375,7 @@ _cogl_bitmap_fallback_convert (CoglBitmap *src_bmp,
/* 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 & ~COGL_PREMULT_BIT));
/* Allocate a new buffer to hold converted data */
dst_data = g_malloc (height * dst_rowstride);
@ -391,7 +391,7 @@ _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 +411,7 @@ _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;

4
cogl/cogl-bitmap.c
View file

@ -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)

1
cogl/cogl-types.h
View file

@ -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:

1
doc/reference/cogl-2.0-experimental/cogl-2.0-experimental-sections.txt
View file

@ -164,7 +164,6 @@ COGL_PIXEL_FORMAT_24
COGL_PIXEL_FORMAT_32
COGL_PREMULT_BIT
COGL_UNORDERED_MASK
COGL_UNPREMULT_MASK
</SECTION>
<SECTION>

1
doc/reference/cogl/cogl-sections.txt
View file

@ -126,7 +126,6 @@ COGL_PIXEL_FORMAT_24
COGL_PIXEL_FORMAT_32
COGL_PREMULT_BIT
COGL_UNORDERED_MASK
COGL_UNPREMULT_MASK
</SECTION>
<SECTION>