Changeset 7dba813 in mainline for uspace/lib/softrend

Timestamp:

2012-11-22T09:03:39Z (13 years ago)

Author:

Petr Koupy <petr.koupy@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ba733e83

Parents:

8e6ec6e

Message:

Resolved Ticket #485 (Desktop is slow). GUI is usable in Qemu/non-KVM as long as windows are not transparent, rotated or scaled (i.e. if user limits himself only to translation and resizing).

Location:

uspace/lib/softrend

Files:

• transform.c (modified) (1 diff)
• transform.h (modified) (2 diffs)

uspace/lib/softrend/transform.c

@@ -136 +136 @@
 }
 
+bool transform_is_fast(transform_t *t)
+{
+        return (t->m[0][0] == 1) && (t->m[0][1] == 0)
+            && (t->m[1][0] == 0) && (t->m[1][1] == 1)
+            && ((t->m[0][2] - ((long) t->m[0][2])) == 0.0)
+            && ((t->m[1][2] - ((long) t->m[1][2])) == 0.0);
+}
+
 void transform_apply_linear(const transform_t *t, double *x, double *y)
 {

uspace/lib/softrend/transform.h

@@ -37 +37 @@
 #define SOFTREND_TRANSFORM_H_
 
+#include <bool.h>
+
 #ifndef PI
 #define PI 3.141592653589793
@@ -53 +55 @@
 extern void transform_rotate(transform_t *, double);
 
+extern bool transform_is_fast(transform_t *);
+
 extern void transform_apply_linear(const transform_t *, double *, double *);
 extern void transform_apply_affine(const transform_t *, double *, double *);