CVSROOT: /sources/gnash
Module name: gnash
Changes by: Sandro Santilli <strk> 08/01/04 12:24:32
Modified files:
. : ChangeLog
testsuite/server: MatrixTest.cpp
Log message:
* testsuite/server/MatrixTest.cpp: add a test
for transforming a couple of points using
a translate + scale approach. This is the
way we should transform radial gradients
for beginGradientFill, probably optimizable
but helpful for understanding it.
CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/gnash/ChangeLog?cvsroot=gnash&r1=1.5293&r2=1.5294
http://cvs.savannah.gnu.org/viewcvs/gnash/testsuite/server/MatrixTest.cpp?cvsroot=gnash&r1=1.9&r2=1.10
Patches:
Index: ChangeLog
===================================================================
RCS file: /sources/gnash/gnash/ChangeLog,v
retrieving revision 1.5293
retrieving revision 1.5294
diff -u -b -r1.5293 -r1.5294
--- ChangeLog 3 Jan 2008 17:50:24 -0000 1.5293
+++ ChangeLog 4 Jan 2008 12:24:31 -0000 1.5294
@@ -1,3 +1,12 @@
+2008-01-04 Sandro Santilli <[EMAIL PROTECTED]>
+
+ * testsuite/server/MatrixTest.cpp: add a test
+ for transforming a couple of points using
+ a translate + scale approach. This is the
+ way we should transform radial gradients
+ for beginGradientFill, probably optimizable
+ but helpful for understanding it.
+
2008-01-03 Sandro Santilli <[EMAIL PROTECTED]>
* server/sprite_instance.cpp (beginGradientFill):
Index: testsuite/server/MatrixTest.cpp
===================================================================
RCS file: /sources/gnash/gnash/testsuite/server/MatrixTest.cpp,v
retrieving revision 1.9
retrieving revision 1.10
diff -u -b -r1.9 -r1.10
--- testsuite/server/MatrixTest.cpp 1 Jul 2007 10:55:13 -0000 1.9
+++ testsuite/server/MatrixTest.cpp 4 Jan 2008 12:24:32 -0000 1.10
@@ -173,5 +173,57 @@
check_equals(m1.get_x_translation(), 5);
check_equals(m1.get_y_translation(), 6);
+ //---------------------------------------------
+ // Test transformations
+ //---------------------------------------------
+
+ point p1(0, 0);
+ point p2(64, 64);
+ point r;
+
+ m1.set_identity();
+
+ // Scale points by 1/32
+
+ m1.set_scale(20.0/64, 20.0/64);
+
+ m1.transform(&r, p1);
+ check_equals(r.x, 0);
+ check_equals(r.y, 0);
+
+ m1.transform(&r, p2);
+ check_equals(r.x, 20);
+ check_equals(r.y, 20);
+
+ // Translate points to have the origin at 32,32
+ // (coordinates expressed in prior-to-scaling matrix)
+
+ m1.concatenate_translation(-32, -32);
+
+ m1.transform(&r, p1);
+ check_equals(r.x, -10);
+ check_equals(r.y, -10);
+
+ m1.transform(&r, p2);
+ check_equals(r.x, 10);
+ check_equals(r.y, 10);
+
+ // Apply a final scaling by 10 keeping
+ // the current origin (reached after
+ // translation)
+
+ matrix final;
+ final.set_scale(10, 10);
+ final.concatenate(m1);
+ m1 = final;
+
+ m1.transform(&r, p1);
+ check_equals(r.x, -100);
+ check_equals(r.y, -100);
+
+ m1.transform(&r, p2);
+ check_equals(r.x, 100);
+ check_equals(r.y, 100);
+
}
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