David Adam : d3dx8: Implement D3DXColorAdjustSaturation.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 8389eab6b7b1c9be60426a743fa095205898e1a1
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=8389eab6b7b1c9be60426a743fa095205898e1a1

Author: David Adam <David.Adam at math.cnrs.fr>
Date:   Mon Nov 19 15:26:22 2007 +0100

d3dx8: Implement D3DXColorAdjustSaturation.

---

 dlls/d3dx8/d3dx8.spec   |    2 +-
 dlls/d3dx8/math.c       |   14 ++++++++++++++
 dlls/d3dx8/tests/math.c |    7 ++++++-
 include/d3dx8math.h     |    1 +
 4 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/dlls/d3dx8/d3dx8.spec b/dlls/d3dx8/d3dx8.spec
index 3a27e1a..ab796af 100644
--- a/dlls/d3dx8/d3dx8.spec
+++ b/dlls/d3dx8/d3dx8.spec
@@ -66,7 +66,7 @@
 @ stdcall D3DXPlaneFromPointNormal(ptr ptr ptr)
 @ stdcall D3DXPlaneFromPoints(ptr ptr ptr ptr)
 @ stdcall D3DXPlaneTransform(ptr ptr ptr)
-@ stub D3DXColorAdjustSaturation
+@ stdcall D3DXColorAdjustSaturation(ptr ptr long)
 @ stub D3DXColorAdjustContrast
 @ stub D3DXCreateMatrixStack
 @ stdcall D3DXCreateFont(ptr ptr ptr)
diff --git a/dlls/d3dx8/math.c b/dlls/d3dx8/math.c
index 6372271..ac66481 100644
--- a/dlls/d3dx8/math.c
+++ b/dlls/d3dx8/math.c
@@ -32,6 +32,20 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3dx8);
 
+/*_________________D3DXColor____________________*/
+
+D3DXCOLOR* WINAPI D3DXColorAdjustSaturation(D3DXCOLOR *pout, CONST D3DXCOLOR *pc, FLOAT s)
+{
+    FLOAT grey;
+
+    grey = pc->r * 0.2125f + pc->g * 0.7154f + pc->b * 0.0721f;
+    pout->r = grey + s * (pc->r - grey);
+    pout->g = grey + s * (pc->g - grey);
+    pout->b = grey + s * (pc->b - grey);
+    pout->a = pc->a;
+    return pout;
+}
+
 /*_________________D3DXMatrix____________________*/
 
 D3DXMATRIX* WINAPI D3DXMatrixAffineTransformation(D3DXMATRIX *pout, float scaling, D3DXVECTOR3 *rotationcenter, D3DXQUATERNION *rotation, D3DXVECTOR3 *translation)
diff --git a/dlls/d3dx8/tests/math.c b/dlls/d3dx8/tests/math.c
index cb72b31..f349a28 100644
--- a/dlls/d3dx8/tests/math.c
+++ b/dlls/d3dx8/tests/math.c
@@ -67,6 +67,7 @@ static void D3DXColorTest(void)
     color.r = 0.2f; color.g = 0.75f; color.b = 0.41f; color.a = 0.93f;
     color1.r = 0.6f; color1.g = 0.55f; color1.b = 0.23f; color1.a = 0.82f;
     color2.r = 0.3f; color2.g = 0.5f; color2.b = 0.76f; color2.a = 0.11f;
+
     scale = 0.3f;
 
 /*_______________D3DXColorAdd________________*/
@@ -81,6 +82,11 @@ static void D3DXColorTest(void)
     funcpointer = D3DXColorAdd(NULL,NULL,NULL);
     ok(funcpointer == NULL, "Expected: %p, Got: %p\n", NULL, funcpointer);
 
+/*_______________D3DXColorAdjustSaturation______*/
+    expected.r = 0.486028f; expected.g = 0.651028f; expected.b = 0.549028f, expected.a = 0.93f;
+    D3DXColorAdjustSaturation(&got,&color,scale);
+    expect_color(expected,got);
+
 /*_______________D3DXColorLerp________________*/
     expected.r = 0.32f; expected.g = 0.69f; expected.b = 0.356f; expected.a = 0.897f;
     D3DXColorLerp(&got,&color,&color1,scale);
@@ -436,7 +442,6 @@ static void D3DXMatrixTest(void)
 
 static void D3DXPlaneTest(void)
 {
-
     D3DXMATRIX mat;
     D3DXPLANE expectedplane, gotplane, nulplane, plane;
     D3DXVECTOR3 expectedvec, gotvec, vec1, vec2, vec3;
diff --git a/include/d3dx8math.h b/include/d3dx8math.h
index 06bc562..28c1bbe 100644
--- a/include/d3dx8math.h
+++ b/include/d3dx8math.h
@@ -263,6 +263,7 @@ typedef struct D3DXCOLOR
 extern "C" {
 #endif
 
+D3DXCOLOR* WINAPI D3DXColorAdjustSaturation(D3DXCOLOR *pout, CONST D3DXCOLOR *pc, FLOAT s);
 D3DXMATRIX* WINAPI D3DXMatrixAffineTransformation(D3DXMATRIX *pout, float scaling, D3DXVECTOR3 *rotationcenter, D3DXQUATERNION *rotation, D3DXVECTOR3 *translation);
 FLOAT WINAPI D3DXMatrixfDeterminant(CONST D3DXMATRIX *pm);
 D3DXMATRIX* WINAPI D3DXMatrixInverse(D3DXMATRIX *pout, FLOAT *pdeterminant, CONST D3DXMATRIX *pm);