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Optimize a little bit. (More for consistency than because it makes much of

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Fri Jan  4 01:36:48 2002  Owen Taylor  <otaylor@redhat.com>

	* gdk/x11/gdkdrawable-x11.c (convert_to_format): Optimize
	a little bit. (More for consistency than because it
	makes much of a difference.)
This commit is contained in:
Owen Taylor 2002-01-04 06:38:32 +00:00 committed by Owen Taylor
parent d12c9702a4
commit 734702e6d5
8 changed files with 52 additions and 13 deletions
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6
ChangeLog
View File

@ -1,3 +1,9 @@
Fri Jan 4 01:36:48 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (convert_to_format): Optimize
a little bit. (More for consistency than because it
makes much of a difference.)
Thu Jan 3 22:18:15 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c gdk/x11/gdkprivate-x11.h

6
ChangeLog.pre-2-0
View File

@ -1,3 +1,9 @@
Fri Jan 4 01:36:48 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (convert_to_format): Optimize
a little bit. (More for consistency than because it
makes much of a difference.)
Thu Jan 3 22:18:15 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c gdk/x11/gdkprivate-x11.h

6
ChangeLog.pre-2-10
View File

@ -1,3 +1,9 @@
Fri Jan 4 01:36:48 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (convert_to_format): Optimize
a little bit. (More for consistency than because it
makes much of a difference.)
Thu Jan 3 22:18:15 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c gdk/x11/gdkprivate-x11.h

6
ChangeLog.pre-2-2
View File

@ -1,3 +1,9 @@
Fri Jan 4 01:36:48 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (convert_to_format): Optimize
a little bit. (More for consistency than because it
makes much of a difference.)
Thu Jan 3 22:18:15 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c gdk/x11/gdkprivate-x11.h

6
ChangeLog.pre-2-4
View File

@ -1,3 +1,9 @@
Fri Jan 4 01:36:48 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (convert_to_format): Optimize
a little bit. (More for consistency than because it
makes much of a difference.)
Thu Jan 3 22:18:15 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c gdk/x11/gdkprivate-x11.h

6
ChangeLog.pre-2-6
View File

@ -1,3 +1,9 @@
Fri Jan 4 01:36:48 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (convert_to_format): Optimize
a little bit. (More for consistency than because it
makes much of a difference.)
Thu Jan 3 22:18:15 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c gdk/x11/gdkprivate-x11.h

6
ChangeLog.pre-2-8
View File

@ -1,3 +1,9 @@
Fri Jan 4 01:36:48 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c (convert_to_format): Optimize
a little bit. (More for consistency than because it
makes much of a difference.)
Thu Jan 3 22:18:15 2002 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkdrawable-x11.c gdk/x11/gdkprivate-x11.h

23
gdk/x11/gdkdrawable-x11.c
View File

@ -1042,20 +1042,18 @@ convert_to_format (guchar *src_buf,
guchar *p = (src_buf + i * src_rowstride);
guchar *q = (dest_buf + i * dest_rowstride);
guchar *end = p + 4 * width;
guchar a;
guint t;
guint t1,t2,t3;
#define MULT(d,c,a) G_STMT_START { t = c * a; d = ((t >> 8) + t) >> 8; } G_STMT_END
#define MULT(d,c,a,t) G_STMT_START { t = c * a; d = ((t >> 8) + t) >> 8; } G_STMT_END
if (dest_byteorder == GDK_LSB_FIRST)
{
while (p < end)
{
a = p[3];
MULT(q[0], p[2], a);
MULT(q[1], p[1], a);
MULT(q[2], p[0], a);
q[3] = a;
MULT(q[0], p[2], p[3], t1);
MULT(q[1], p[1], p[3], t2);
MULT(q[2], p[0], p[3], t3);
q[3] = p[3];
p += 4;
q += 4;
}
@ -1064,11 +1062,10 @@ convert_to_format (guchar *src_buf,
{
while (p < end)
{
a = p[3];
q[0] = a;
MULT(q[1], p[0], a);
MULT(q[2], p[1], a);
MULT(q[3], p[2], a);
q[0] = p[3];
MULT(q[1], p[0], p[3], t1);
MULT(q[2], p[1], p[3], t2);
MULT(q[3], p[2], p[3], t3);
p += 4;
q += 4;
}