David Adam : d3dx8: Implement D3DXVec3Unproject.
Alexandre Julliard
julliard at winehq.org
Mon Nov 12 06:27:52 CST 2007
Module: wine
Branch: master
Commit: 147600b671826f4f0ca52ffb95b613b839110dcb
URL: http://source.winehq.org/git/wine.git/?a=commit;h=147600b671826f4f0ca52ffb95b613b839110dcb
Author: David Adam <David.Adam at math.cnrs.fr>
Date: Sun Nov 11 17:38:20 2007 +0100
d3dx8: Implement D3DXVec3Unproject.
---
dlls/d3dx8/d3dx8.spec | 2 +-
dlls/d3dx8/math.c | 15 +++++++++++++++
dlls/d3dx8/tests/math.c | 6 ++++++
include/d3dx8math.h | 1 +
4 files changed, 23 insertions(+), 1 deletions(-)
diff --git a/dlls/d3dx8/d3dx8.spec b/dlls/d3dx8/d3dx8.spec
index 50d4cc3..82c9586 100644
--- a/dlls/d3dx8/d3dx8.spec
+++ b/dlls/d3dx8/d3dx8.spec
@@ -13,7 +13,7 @@
@ stdcall D3DXVec3TransformCoord(ptr ptr ptr)
@ stdcall D3DXVec3TransformNormal(ptr ptr ptr)
@ stdcall D3DXVec3Project(ptr ptr ptr ptr ptr ptr)
-@ stub D3DXVec3Unproject
+@ stdcall D3DXVec3Unproject(ptr ptr ptr ptr ptr ptr)
@ stdcall D3DXVec4Cross(ptr ptr ptr ptr)
@ stdcall D3DXVec4Normalize(ptr ptr)
@ stdcall D3DXVec4Hermite(ptr ptr ptr ptr ptr long)
diff --git a/dlls/d3dx8/math.c b/dlls/d3dx8/math.c
index ddc2df2..7f96583 100644
--- a/dlls/d3dx8/math.c
+++ b/dlls/d3dx8/math.c
@@ -606,6 +606,21 @@ D3DXVECTOR3* WINAPI D3DXVec3TransformNormal(D3DXVECTOR3 *pout, CONST D3DXVECTOR3
}
+D3DXVECTOR3* WINAPI D3DXVec3Unproject(D3DXVECTOR3 *pout, CONST D3DXVECTOR3 *pv, CONST D3DVIEWPORT8 *pviewport, CONST D3DXMATRIX *pprojection, CONST D3DXMATRIX *pview, CONST D3DXMATRIX *pworld)
+{
+ D3DXMATRIX m1, m2, m3;
+ D3DXVECTOR3 vec;
+
+ D3DXMatrixMultiply(&m1, pworld, pview);
+ D3DXMatrixMultiply(&m2, &m1, pprojection);
+ D3DXMatrixInverse(&m3, NULL, &m2);
+ vec.x = 2.0f * ( pv->x - pviewport->X ) / pviewport->Width - 1.0f;
+ vec.y = 1.0f - 2.0f * ( pv->y - pviewport->Y ) / pviewport->Height;
+ vec.z = ( pv->z - pviewport->MinZ) / ( pviewport->MaxZ - pviewport->MinZ );
+ D3DXVec3TransformCoord(pout, &vec, &m3);
+ return pout;
+}
+
/*_________________D3DXVec4_____________________*/
D3DXVECTOR4* WINAPI D3DXVec4BaryCentric(D3DXVECTOR4 *pout, CONST D3DXVECTOR4 *pv1, CONST D3DXVECTOR4 *pv2, CONST D3DXVECTOR4 *pv3, FLOAT f, FLOAT g)
diff --git a/dlls/d3dx8/tests/math.c b/dlls/d3dx8/tests/math.c
index 70e5240..65a0e5a 100644
--- a/dlls/d3dx8/tests/math.c
+++ b/dlls/d3dx8/tests/math.c
@@ -878,6 +878,12 @@ static void D3X8Vector3Test(void)
expectedvec.x = 57.0f; expectedvec.y = 74.0f; expectedvec.z = 91.0f;
D3DXVec3TransformNormal(&gotvec,&u,&mat);
expect_vec3(expectedvec,gotvec);
+
+/*_______________D3DXVec3Unproject_________________________*/
+ expectedvec.x = -2.913411f; expectedvec.y = 1.593215f; expectedvec.z = 0.380724f;
+ D3DXMatrixPerspectiveFovLH(&projection,D3DX_PI/4.0f,20.0f/17.0f,1.0f,1000.0f);
+ D3DXVec3Unproject(&gotvec,&u,&viewport,&projection,&view,&world);
+ expect_vec3(expectedvec,gotvec);
}
static void D3X8Vector4Test(void)
diff --git a/include/d3dx8math.h b/include/d3dx8math.h
index 93acf7b..9916490 100644
--- a/include/d3dx8math.h
+++ b/include/d3dx8math.h
@@ -304,6 +304,7 @@ D3DXVECTOR3* WINAPI D3DXVec3Project(D3DXVECTOR3 *pout, CONST D3DXVECTOR3 *pv, CO
D3DXVECTOR4* WINAPI D3DXVec3Transform(D3DXVECTOR4 *pout, CONST D3DXVECTOR3 *pv, CONST D3DXMATRIX *pm);
D3DXVECTOR3* WINAPI D3DXVec3TransformCoord(D3DXVECTOR3 *pout, CONST D3DXVECTOR3 *pv, CONST D3DXMATRIX *pm);
D3DXVECTOR3* WINAPI D3DXVec3TransformNormal(D3DXVECTOR3 *pout, CONST D3DXVECTOR3 *pv, CONST D3DXMATRIX *pm);
+D3DXVECTOR3* WINAPI D3DXVec3Unproject(D3DXVECTOR3 *pout, CONST D3DXVECTOR3 *pv, CONST D3DVIEWPORT8 *pviewport, CONST D3DXMATRIX *pprojection, CONST D3DXMATRIX *pview, CONST D3DXMATRIX *pworld);
D3DXVECTOR4* WINAPI D3DXVec4BaryCentric(D3DXVECTOR4 *pout, CONST D3DXVECTOR4 *pv1, CONST D3DXVECTOR4 *pv2, CONST D3DXVECTOR4 *pv3, FLOAT f, FLOAT g);
D3DXVECTOR4* WINAPI D3DXVec4CatmullRom(D3DXVECTOR4 *pout, CONST D3DXVECTOR4 *pv0, CONST D3DXVECTOR4 *pv1, CONST D3DXVECTOR4 *pv2, CONST D3DXVECTOR4 *pv3, FLOAT s);
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