[PATCH 3/3] d2d1: Implement D2D1Vec3Length

[Giovanni Mascellani]

Signed-off-by: Giovanni Mascellani 
---
 dlls/d2d1/d2d1.spec    |  2 +-
 dlls/d2d1/factory.c    |  5 +++++
 dlls/d2d1/tests/d2d1.c | 26 +++++++++++++++++++++++++-
 include/d2d1_1.idl     |  1 +
 4 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/dlls/d2d1/d2d1.spec b/dlls/d2d1/d2d1.spec
index 7b624c7096e..0ae894109fb 100644
--- a/dlls/d2d1/d2d1.spec
+++ b/dlls/d2d1/d2d1.spec
@@ -8,4 +8,4 @@
 @ stub D2D1CreateDeviceContext
 @ stdcall D2D1SinCos(float ptr ptr)
 @ stdcall D2D1Tan(float)
-@ stub D2D1Vec3Length
+@ stdcall D2D1Vec3Length(float float float)
diff --git a/dlls/d2d1/factory.c b/dlls/d2d1/factory.c
index d21520bb8c3..e1a6191dfa9 100644
--- a/dlls/d2d1/factory.c
+++ b/dlls/d2d1/factory.c
@@ -724,6 +724,11 @@ float WINAPI D2D1Tan(float angle)
     return tanf(angle);
 }

+float WINAPI D2D1Vec3Length(float x, float y, float z)
+{
+    return sqrtf(x * x + y * y + z * z);
+}
+
 static BOOL get_config_key_dword(HKEY default_key, HKEY application_key, const char *name, DWORD *value)
 {
     DWORD type, data, size;
diff --git a/dlls/d2d1/tests/d2d1.c b/dlls/d2d1/tests/d2d1.c
index 2bad058feb1..7957866a040 100644
--- a/dlls/d2d1/tests/d2d1.c
+++ b/dlls/d2d1/tests/d2d1.c
@@ -9427,7 +9427,7 @@ static void test_wic_bitmap_format(void)

static void test_math(void)
 {
-    float s, c, t;
+    float s, c, t, l;
     int i;

static const struct
@@ -9459,6 +9459,23 @@ static void test_math(void)
         {M_PI, 8.74227766e-008},
     };

+    static const struct {
+        float x;
+        float y;
+        float z;
+        float l;
+    }
+    l_data[] =
+    {
+        {0.0, 0.0, 0.0, 0.0},
+        {1.0, 0.0, 0.0, 1.0},
+        {0.0, 1.0, 0.0, 1.0},
+        {0.0, 0.0, 1.0, 1.0},
+        {1.0, 1.0, 1.0, 1.73205078},
+        {1.0, 2.0, 2.0, 3.0},
+        {1.0, 2.0, 3.0, 3.74165750},
+    };
+
     for (i = 0; i < ARRAY_SIZE(sc_data); ++i)
     {
         D2D1SinCos(sc_data[i].x, &s, &c);
@@ -9471,6 +9488,13 @@ static void test_math(void)
         t = D2D1Tan(t_data[i].x);
         ok(compare_float(t, t_data[i].t, 1), "Wrong tan(%.8e) (%.8e instead of %.8e).\n", t_data[i].x, t, t_data[i].t);
     }
+
+    for (i = 0; i < ARRAY_SIZE(l_data); ++i)
+    {
+        l = D2D1Vec3Length(l_data[i].x, l_data[i].y, l_data[i].z);
+        ok(compare_float(l, l_data[i].l, 0), "Wrong len(%.8e, %.8e, %.8e) (%.8e instead of %.8e).\n",
+                l_data[i].x, l_data[i].y, l_data[i].z, l, l_data[i].l);
+    }
 }

START_TEST(d2d1)
diff --git a/include/d2d1_1.idl b/include/d2d1_1.idl
index bd111bd6628..6eab3959cd1 100644
--- a/include/d2d1_1.idl
+++ b/include/d2d1_1.idl
@@ -796,3 +796,4 @@ interface ID2D1Factory1 : ID2D1Factory
         const D2D1_CREATION_PROPERTIES *creation_properties, ID2D1Device **device);
 [local] void __stdcall D2D1SinCos(float angle, float *s, float *c);
 [local] float __stdcall D2D1Tan(float angle);
+[local] float __stdcall D2D1Vec3Length(float x, float y, float z);