[PATCH 5/5] d2d1: Implement D2D1MakeRotateMatrix().
Henri Verbeet
hverbeet at codeweavers.com
Fri Jul 18 03:37:57 CDT 2014
---
dlls/d2d1/d2d1.spec | 2 +-
dlls/d2d1/factory.c | 19 +++++++++++++++++++
include/d2d1.idl | 1 +
3 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/dlls/d2d1/d2d1.spec b/dlls/d2d1/d2d1.spec
index b1bfe9b..26d17c6 100644
--- a/dlls/d2d1/d2d1.spec
+++ b/dlls/d2d1/d2d1.spec
@@ -1,5 +1,5 @@
@ stdcall D2D1CreateFactory(long ptr ptr ptr)
-@ stub D2D1MakeRotateMatrix
+@ stdcall D2D1MakeRotateMatrix(float float float ptr)
@ stub D2D1MakeSkewMatrix
@ stub D2D1IsMatrixInvertible
@ stub D2D1InvertMatrix
diff --git a/dlls/d2d1/factory.c b/dlls/d2d1/factory.c
index 1003f0d..0bc465e 100644
--- a/dlls/d2d1/factory.c
+++ b/dlls/d2d1/factory.c
@@ -264,3 +264,22 @@ HRESULT WINAPI D2D1CreateFactory(D2D1_FACTORY_TYPE factory_type, REFIID iid,
return hr;
}
+
+void WINAPI D2D1MakeRotateMatrix(float angle, D2D1_POINT_2F center, D2D1_MATRIX_3X2_F *matrix)
+{
+ float theta, sin_theta, cos_theta;
+
+ TRACE("angle %.8e, center {%.8e, %.8e}, matrix %p.\n", angle, center.x, center.y, matrix);
+
+ theta = angle * (M_PI / 180.0f);
+ sin_theta = sinf(theta);
+ cos_theta = cosf(theta);
+
+ /* translate(center) * rotate(theta) * translate(-center) */
+ matrix->_11 = cos_theta;
+ matrix->_12 = sin_theta;
+ matrix->_21 = -sin_theta;
+ matrix->_22 = cos_theta;
+ matrix->_31 = center.x - center.x * cos_theta + center.y * sin_theta;
+ matrix->_32 = center.y - center.x * sin_theta - center.y * cos_theta;
+}
diff --git a/include/d2d1.idl b/include/d2d1.idl
index a6d0d36..4637338 100644
--- a/include/d2d1.idl
+++ b/include/d2d1.idl
@@ -1248,3 +1248,4 @@ interface ID2D1Factory : IUnknown
[local] HRESULT __stdcall D2D1CreateFactory(D2D1_FACTORY_TYPE factory_type, REFIID iid,
const D2D1_FACTORY_OPTIONS *factory_options, void **factory);
+[local] void __stdcall D2D1MakeRotateMatrix(float angle, D2D1_POINT_2F center, D2D1_MATRIX_3X2_F *matrix);
--
1.7.10.4
More information about the wine-patches
mailing list