/dlls/d3dx9_36/math.c
C | 1596 lines | 1316 code | 245 blank | 35 comment | 68 complexity | 078ced061ac059ac1bbc52b5bdccf1db MD5 | raw file
- /*
- * Mathematical operations specific to D3DX9.
- *
- * Copyright (C) 2008 David Adam
- * Copyright (C) 2008 Luis Busquets
- * Copyright (C) 2008 Jérôme Gardou
- * Copyright (C) 2008 Philip Nilsson
- * Copyright (C) 2008 Henri Verbeet
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
- */
- #define NONAMELESSUNION
- #include "config.h"
- #include "wine/port.h"
- #include "windef.h"
- #include "wingdi.h"
- #include "d3dx9_36_private.h"
- #include "wine/debug.h"
- WINE_DEFAULT_DEBUG_CHANNEL(d3dx);
- static const ID3DXMatrixStackVtbl ID3DXMatrixStack_Vtbl;
- typedef struct ID3DXMatrixStackImpl
- {
- ID3DXMatrixStack ID3DXMatrixStack_iface;
- LONG ref;
- unsigned int current;
- unsigned int stack_size;
- D3DXMATRIX *stack;
- } ID3DXMatrixStackImpl;
- /*_________________D3DXColor____________________*/
- D3DXCOLOR* WINAPI D3DXColorAdjustContrast(D3DXCOLOR *pout, CONST D3DXCOLOR *pc, FLOAT s)
- {
- pout->r = 0.5f + s * (pc->r - 0.5f);
- pout->g = 0.5f + s * (pc->g - 0.5f);
- pout->b = 0.5f + s * (pc->b - 0.5f);
- pout->a = pc->a;
- return pout;
- }
- 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;
- }
- /*_________________Misc__________________________*/
- FLOAT WINAPI D3DXFresnelTerm(FLOAT costheta, FLOAT refractionindex)
- {
- FLOAT a, d, g, result;
- g = sqrt(refractionindex * refractionindex + costheta * costheta - 1.0f);
- a = g + costheta;
- d = g - costheta;
- result = ( costheta * a - 1.0f ) * ( costheta * a - 1.0f ) / ( ( costheta * d + 1.0f ) * ( costheta * d + 1.0f ) ) + 1.0f;
- result = result * 0.5f * d * d / ( a * a );
- return result;
- }
- /*_________________D3DXMatrix____________________*/
- D3DXMATRIX* WINAPI D3DXMatrixAffineTransformation(D3DXMATRIX *pout, FLOAT scaling, CONST D3DXVECTOR3 *rotationcenter, CONST D3DXQUATERNION *rotation, CONST D3DXVECTOR3 *translation)
- {
- D3DXMATRIX m1, m2, m3, m4, m5;
- D3DXMatrixScaling(&m1, scaling, scaling, scaling);
- if ( !rotationcenter )
- {
- D3DXMatrixIdentity(&m2);
- D3DXMatrixIdentity(&m4);
- }
- else
- {
- D3DXMatrixTranslation(&m2, -rotationcenter->x, -rotationcenter->y, -rotationcenter->z);
- D3DXMatrixTranslation(&m4, rotationcenter->x, rotationcenter->y, rotationcenter->z);
- }
- if ( !rotation ) D3DXMatrixIdentity(&m3);
- else D3DXMatrixRotationQuaternion(&m3, rotation);
- if ( !translation ) D3DXMatrixIdentity(&m5);
- else D3DXMatrixTranslation(&m5, translation->x, translation->y, translation->z);
- D3DXMatrixMultiply(&m1, &m1, &m2);
- D3DXMatrixMultiply(&m1, &m1, &m3);
- D3DXMatrixMultiply(&m1, &m1, &m4);
- D3DXMatrixMultiply(pout, &m1, &m5);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixAffineTransformation2D(D3DXMATRIX *pout, FLOAT scaling, CONST D3DXVECTOR2 *protationcenter, FLOAT rotation, CONST D3DXVECTOR2 *ptranslation)
- {
- D3DXMATRIX m1, m2, m3, m4, m5;
- D3DXQUATERNION rot;
- D3DXVECTOR3 rot_center, trans;
- rot.w=cos(rotation/2.0f);
- rot.x=0.0f;
- rot.y=0.0f;
- rot.z=sin(rotation/2.0f);
- if ( protationcenter )
- {
- rot_center.x=protationcenter->x;
- rot_center.y=protationcenter->y;
- rot_center.z=0.0f;
- }
- else
- {
- rot_center.x=0.0f;
- rot_center.y=0.0f;
- rot_center.z=0.0f;
- }
- if ( ptranslation )
- {
- trans.x=ptranslation->x;
- trans.y=ptranslation->y;
- trans.z=0.0f;
- }
- else
- {
- trans.x=0.0f;
- trans.y=0.0f;
- trans.z=0.0f;
- }
- D3DXMatrixScaling(&m1, scaling, scaling, 1.0f);
- D3DXMatrixTranslation(&m2, -rot_center.x, -rot_center.y, -rot_center.z);
- D3DXMatrixTranslation(&m4, rot_center.x, rot_center.y, rot_center.z);
- D3DXMatrixRotationQuaternion(&m3, &rot);
- D3DXMatrixTranslation(&m5, trans.x, trans.y, trans.z);
- D3DXMatrixMultiply(&m1, &m1, &m2);
- D3DXMatrixMultiply(&m1, &m1, &m3);
- D3DXMatrixMultiply(&m1, &m1, &m4);
- D3DXMatrixMultiply(pout, &m1, &m5);
- return pout;
- }
- HRESULT WINAPI D3DXMatrixDecompose(D3DXVECTOR3 *poutscale, D3DXQUATERNION *poutrotation, D3DXVECTOR3 *pouttranslation, CONST D3DXMATRIX *pm)
- {
- D3DXMATRIX normalized;
- D3DXVECTOR3 vec;
- /*Compute the scaling part.*/
- vec.x=pm->u.m[0][0];
- vec.y=pm->u.m[0][1];
- vec.z=pm->u.m[0][2];
- poutscale->x=D3DXVec3Length(&vec);
- vec.x=pm->u.m[1][0];
- vec.y=pm->u.m[1][1];
- vec.z=pm->u.m[1][2];
- poutscale->y=D3DXVec3Length(&vec);
- vec.x=pm->u.m[2][0];
- vec.y=pm->u.m[2][1];
- vec.z=pm->u.m[2][2];
- poutscale->z=D3DXVec3Length(&vec);
- /*Compute the translation part.*/
- pouttranslation->x=pm->u.m[3][0];
- pouttranslation->y=pm->u.m[3][1];
- pouttranslation->z=pm->u.m[3][2];
- /*Let's calculate the rotation now*/
- if ( (poutscale->x == 0.0f) || (poutscale->y == 0.0f) || (poutscale->z == 0.0f) ) return D3DERR_INVALIDCALL;
- normalized.u.m[0][0]=pm->u.m[0][0]/poutscale->x;
- normalized.u.m[0][1]=pm->u.m[0][1]/poutscale->x;
- normalized.u.m[0][2]=pm->u.m[0][2]/poutscale->x;
- normalized.u.m[1][0]=pm->u.m[1][0]/poutscale->y;
- normalized.u.m[1][1]=pm->u.m[1][1]/poutscale->y;
- normalized.u.m[1][2]=pm->u.m[1][2]/poutscale->y;
- normalized.u.m[2][0]=pm->u.m[2][0]/poutscale->z;
- normalized.u.m[2][1]=pm->u.m[2][1]/poutscale->z;
- normalized.u.m[2][2]=pm->u.m[2][2]/poutscale->z;
- D3DXQuaternionRotationMatrix(poutrotation,&normalized);
- return S_OK;
- }
- FLOAT WINAPI D3DXMatrixDeterminant(CONST D3DXMATRIX *pm)
- {
- D3DXVECTOR4 minor, v1, v2, v3;
- FLOAT det;
- v1.x = pm->u.m[0][0]; v1.y = pm->u.m[1][0]; v1.z = pm->u.m[2][0]; v1.w = pm->u.m[3][0];
- v2.x = pm->u.m[0][1]; v2.y = pm->u.m[1][1]; v2.z = pm->u.m[2][1]; v2.w = pm->u.m[3][1];
- v3.x = pm->u.m[0][2]; v3.y = pm->u.m[1][2]; v3.z = pm->u.m[2][2]; v3.w = pm->u.m[3][2];
- D3DXVec4Cross(&minor, &v1, &v2, &v3);
- det = - (pm->u.m[0][3] * minor.x + pm->u.m[1][3] * minor.y + pm->u.m[2][3] * minor.z + pm->u.m[3][3] * minor.w);
- return det;
- }
- D3DXMATRIX* WINAPI D3DXMatrixInverse(D3DXMATRIX *pout, FLOAT *pdeterminant, CONST D3DXMATRIX *pm)
- {
- int a, i, j;
- D3DXMATRIX out;
- D3DXVECTOR4 v, vec[3];
- FLOAT det;
- det = D3DXMatrixDeterminant(pm);
- if ( !det ) return NULL;
- if ( pdeterminant ) *pdeterminant = det;
- for (i=0; i<4; i++)
- {
- for (j=0; j<4; j++)
- {
- if (j != i )
- {
- a = j;
- if ( j > i ) a = a-1;
- vec[a].x = pm->u.m[j][0];
- vec[a].y = pm->u.m[j][1];
- vec[a].z = pm->u.m[j][2];
- vec[a].w = pm->u.m[j][3];
- }
- }
- D3DXVec4Cross(&v, &vec[0], &vec[1], &vec[2]);
- out.u.m[0][i] = pow(-1.0f, i) * v.x / det;
- out.u.m[1][i] = pow(-1.0f, i) * v.y / det;
- out.u.m[2][i] = pow(-1.0f, i) * v.z / det;
- out.u.m[3][i] = pow(-1.0f, i) * v.w / det;
- }
- *pout = out;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixLookAtLH(D3DXMATRIX *pout, CONST D3DXVECTOR3 *peye, CONST D3DXVECTOR3 *pat, CONST D3DXVECTOR3 *pup)
- {
- D3DXVECTOR3 right, rightn, up, upn, vec, vec2;
- D3DXVec3Subtract(&vec2, pat, peye);
- D3DXVec3Normalize(&vec, &vec2);
- D3DXVec3Cross(&right, pup, &vec);
- D3DXVec3Cross(&up, &vec, &right);
- D3DXVec3Normalize(&rightn, &right);
- D3DXVec3Normalize(&upn, &up);
- pout->u.m[0][0] = rightn.x;
- pout->u.m[1][0] = rightn.y;
- pout->u.m[2][0] = rightn.z;
- pout->u.m[3][0] = -D3DXVec3Dot(&rightn,peye);
- pout->u.m[0][1] = upn.x;
- pout->u.m[1][1] = upn.y;
- pout->u.m[2][1] = upn.z;
- pout->u.m[3][1] = -D3DXVec3Dot(&upn, peye);
- pout->u.m[0][2] = vec.x;
- pout->u.m[1][2] = vec.y;
- pout->u.m[2][2] = vec.z;
- pout->u.m[3][2] = -D3DXVec3Dot(&vec, peye);
- pout->u.m[0][3] = 0.0f;
- pout->u.m[1][3] = 0.0f;
- pout->u.m[2][3] = 0.0f;
- pout->u.m[3][3] = 1.0f;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixLookAtRH(D3DXMATRIX *pout, CONST D3DXVECTOR3 *peye, CONST D3DXVECTOR3 *pat, CONST D3DXVECTOR3 *pup)
- {
- D3DXVECTOR3 right, rightn, up, upn, vec, vec2;
- D3DXVec3Subtract(&vec2, pat, peye);
- D3DXVec3Normalize(&vec, &vec2);
- D3DXVec3Cross(&right, pup, &vec);
- D3DXVec3Cross(&up, &vec, &right);
- D3DXVec3Normalize(&rightn, &right);
- D3DXVec3Normalize(&upn, &up);
- pout->u.m[0][0] = -rightn.x;
- pout->u.m[1][0] = -rightn.y;
- pout->u.m[2][0] = -rightn.z;
- pout->u.m[3][0] = D3DXVec3Dot(&rightn,peye);
- pout->u.m[0][1] = upn.x;
- pout->u.m[1][1] = upn.y;
- pout->u.m[2][1] = upn.z;
- pout->u.m[3][1] = -D3DXVec3Dot(&upn, peye);
- pout->u.m[0][2] = -vec.x;
- pout->u.m[1][2] = -vec.y;
- pout->u.m[2][2] = -vec.z;
- pout->u.m[3][2] = D3DXVec3Dot(&vec, peye);
- pout->u.m[0][3] = 0.0f;
- pout->u.m[1][3] = 0.0f;
- pout->u.m[2][3] = 0.0f;
- pout->u.m[3][3] = 1.0f;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixMultiply(D3DXMATRIX *pout, CONST D3DXMATRIX *pm1, CONST D3DXMATRIX *pm2)
- {
- D3DXMATRIX out;
- int i,j;
- for (i=0; i<4; i++)
- {
- for (j=0; j<4; j++)
- {
- out.u.m[i][j] = pm1->u.m[i][0] * pm2->u.m[0][j] + pm1->u.m[i][1] * pm2->u.m[1][j] + pm1->u.m[i][2] * pm2->u.m[2][j] + pm1->u.m[i][3] * pm2->u.m[3][j];
- }
- }
- *pout = out;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixMultiplyTranspose(D3DXMATRIX *pout, CONST D3DXMATRIX *pm1, CONST D3DXMATRIX *pm2)
- {
- D3DXMatrixMultiply(pout, pm1, pm2);
- D3DXMatrixTranspose(pout, pout);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixOrthoLH(D3DXMATRIX *pout, FLOAT w, FLOAT h, FLOAT zn, FLOAT zf)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = 2.0f / w;
- pout->u.m[1][1] = 2.0f / h;
- pout->u.m[2][2] = 1.0f / (zf - zn);
- pout->u.m[3][2] = zn / (zn - zf);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixOrthoOffCenterLH(D3DXMATRIX *pout, FLOAT l, FLOAT r, FLOAT b, FLOAT t, FLOAT zn, FLOAT zf)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = 2.0f / (r - l);
- pout->u.m[1][1] = 2.0f / (t - b);
- pout->u.m[2][2] = 1.0f / (zf -zn);
- pout->u.m[3][0] = -1.0f -2.0f *l / (r - l);
- pout->u.m[3][1] = 1.0f + 2.0f * t / (b - t);
- pout->u.m[3][2] = zn / (zn -zf);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixOrthoOffCenterRH(D3DXMATRIX *pout, FLOAT l, FLOAT r, FLOAT b, FLOAT t, FLOAT zn, FLOAT zf)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = 2.0f / (r - l);
- pout->u.m[1][1] = 2.0f / (t - b);
- pout->u.m[2][2] = 1.0f / (zn -zf);
- pout->u.m[3][0] = -1.0f -2.0f *l / (r - l);
- pout->u.m[3][1] = 1.0f + 2.0f * t / (b - t);
- pout->u.m[3][2] = zn / (zn -zf);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixOrthoRH(D3DXMATRIX *pout, FLOAT w, FLOAT h, FLOAT zn, FLOAT zf)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = 2.0f / w;
- pout->u.m[1][1] = 2.0f / h;
- pout->u.m[2][2] = 1.0f / (zn - zf);
- pout->u.m[3][2] = zn / (zn - zf);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixPerspectiveFovLH(D3DXMATRIX *pout, FLOAT fovy, FLOAT aspect, FLOAT zn, FLOAT zf)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = 1.0f / (aspect * tan(fovy/2.0f));
- pout->u.m[1][1] = 1.0f / tan(fovy/2.0f);
- pout->u.m[2][2] = zf / (zf - zn);
- pout->u.m[2][3] = 1.0f;
- pout->u.m[3][2] = (zf * zn) / (zn - zf);
- pout->u.m[3][3] = 0.0f;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixPerspectiveFovRH(D3DXMATRIX *pout, FLOAT fovy, FLOAT aspect, FLOAT zn, FLOAT zf)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = 1.0f / (aspect * tan(fovy/2.0f));
- pout->u.m[1][1] = 1.0f / tan(fovy/2.0f);
- pout->u.m[2][2] = zf / (zn - zf);
- pout->u.m[2][3] = -1.0f;
- pout->u.m[3][2] = (zf * zn) / (zn - zf);
- pout->u.m[3][3] = 0.0f;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixPerspectiveLH(D3DXMATRIX *pout, FLOAT w, FLOAT h, FLOAT zn, FLOAT zf)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = 2.0f * zn / w;
- pout->u.m[1][1] = 2.0f * zn / h;
- pout->u.m[2][2] = zf / (zf - zn);
- pout->u.m[3][2] = (zn * zf) / (zn - zf);
- pout->u.m[2][3] = 1.0f;
- pout->u.m[3][3] = 0.0f;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixPerspectiveOffCenterLH(D3DXMATRIX *pout, FLOAT l, FLOAT r, FLOAT b, FLOAT t, FLOAT zn, FLOAT zf)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = 2.0f * zn / (r - l);
- pout->u.m[1][1] = -2.0f * zn / (b - t);
- pout->u.m[2][0] = -1.0f - 2.0f * l / (r - l);
- pout->u.m[2][1] = 1.0f + 2.0f * t / (b - t);
- pout->u.m[2][2] = - zf / (zn - zf);
- pout->u.m[3][2] = (zn * zf) / (zn -zf);
- pout->u.m[2][3] = 1.0f;
- pout->u.m[3][3] = 0.0f;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixPerspectiveOffCenterRH(D3DXMATRIX *pout, FLOAT l, FLOAT r, FLOAT b, FLOAT t, FLOAT zn, FLOAT zf)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = 2.0f * zn / (r - l);
- pout->u.m[1][1] = -2.0f * zn / (b - t);
- pout->u.m[2][0] = 1.0f + 2.0f * l / (r - l);
- pout->u.m[2][1] = -1.0f -2.0f * t / (b - t);
- pout->u.m[2][2] = zf / (zn - zf);
- pout->u.m[3][2] = (zn * zf) / (zn -zf);
- pout->u.m[2][3] = -1.0f;
- pout->u.m[3][3] = 0.0f;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixPerspectiveRH(D3DXMATRIX *pout, FLOAT w, FLOAT h, FLOAT zn, FLOAT zf)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = 2.0f * zn / w;
- pout->u.m[1][1] = 2.0f * zn / h;
- pout->u.m[2][2] = zf / (zn - zf);
- pout->u.m[3][2] = (zn * zf) / (zn - zf);
- pout->u.m[2][3] = -1.0f;
- pout->u.m[3][3] = 0.0f;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixReflect(D3DXMATRIX *pout, CONST D3DXPLANE *pplane)
- {
- D3DXPLANE Nplane;
- D3DXPlaneNormalize(&Nplane, pplane);
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = 1.0f - 2.0f * Nplane.a * Nplane.a;
- pout->u.m[0][1] = -2.0f * Nplane.a * Nplane.b;
- pout->u.m[0][2] = -2.0f * Nplane.a * Nplane.c;
- pout->u.m[1][0] = -2.0f * Nplane.a * Nplane.b;
- pout->u.m[1][1] = 1.0f - 2.0f * Nplane.b * Nplane.b;
- pout->u.m[1][2] = -2.0f * Nplane.b * Nplane.c;
- pout->u.m[2][0] = -2.0f * Nplane.c * Nplane.a;
- pout->u.m[2][1] = -2.0f * Nplane.c * Nplane.b;
- pout->u.m[2][2] = 1.0f - 2.0f * Nplane.c * Nplane.c;
- pout->u.m[3][0] = -2.0f * Nplane.d * Nplane.a;
- pout->u.m[3][1] = -2.0f * Nplane.d * Nplane.b;
- pout->u.m[3][2] = -2.0f * Nplane.d * Nplane.c;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixRotationAxis(D3DXMATRIX *pout, CONST D3DXVECTOR3 *pv, FLOAT angle)
- {
- D3DXVECTOR3 v;
- D3DXVec3Normalize(&v,pv);
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = (1.0f - cos(angle)) * v.x * v.x + cos(angle);
- pout->u.m[1][0] = (1.0f - cos(angle)) * v.x * v.y - sin(angle) * v.z;
- pout->u.m[2][0] = (1.0f - cos(angle)) * v.x * v.z + sin(angle) * v.y;
- pout->u.m[0][1] = (1.0f - cos(angle)) * v.y * v.x + sin(angle) * v.z;
- pout->u.m[1][1] = (1.0f - cos(angle)) * v.y * v.y + cos(angle);
- pout->u.m[2][1] = (1.0f - cos(angle)) * v.y * v.z - sin(angle) * v.x;
- pout->u.m[0][2] = (1.0f - cos(angle)) * v.z * v.x - sin(angle) * v.y;
- pout->u.m[1][2] = (1.0f - cos(angle)) * v.z * v.y + sin(angle) * v.x;
- pout->u.m[2][2] = (1.0f - cos(angle)) * v.z * v.z + cos(angle);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixRotationQuaternion(D3DXMATRIX *pout, CONST D3DXQUATERNION *pq)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = 1.0f - 2.0f * (pq->y * pq->y + pq->z * pq->z);
- pout->u.m[0][1] = 2.0f * (pq->x *pq->y + pq->z * pq->w);
- pout->u.m[0][2] = 2.0f * (pq->x * pq->z - pq->y * pq->w);
- pout->u.m[1][0] = 2.0f * (pq->x * pq->y - pq->z * pq->w);
- pout->u.m[1][1] = 1.0f - 2.0f * (pq->x * pq->x + pq->z * pq->z);
- pout->u.m[1][2] = 2.0f * (pq->y *pq->z + pq->x *pq->w);
- pout->u.m[2][0] = 2.0f * (pq->x * pq->z + pq->y * pq->w);
- pout->u.m[2][1] = 2.0f * (pq->y *pq->z - pq->x *pq->w);
- pout->u.m[2][2] = 1.0f - 2.0f * (pq->x * pq->x + pq->y * pq->y);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixRotationX(D3DXMATRIX *pout, FLOAT angle)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[1][1] = cos(angle);
- pout->u.m[2][2] = cos(angle);
- pout->u.m[1][2] = sin(angle);
- pout->u.m[2][1] = -sin(angle);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixRotationY(D3DXMATRIX *pout, FLOAT angle)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = cos(angle);
- pout->u.m[2][2] = cos(angle);
- pout->u.m[0][2] = -sin(angle);
- pout->u.m[2][0] = sin(angle);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixRotationYawPitchRoll(D3DXMATRIX *pout, FLOAT yaw, FLOAT pitch, FLOAT roll)
- {
- D3DXMATRIX m;
- D3DXMatrixIdentity(pout);
- D3DXMatrixRotationZ(&m, roll);
- D3DXMatrixMultiply(pout, pout, &m);
- D3DXMatrixRotationX(&m, pitch);
- D3DXMatrixMultiply(pout, pout, &m);
- D3DXMatrixRotationY(&m, yaw);
- D3DXMatrixMultiply(pout, pout, &m);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixRotationZ(D3DXMATRIX *pout, FLOAT angle)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = cos(angle);
- pout->u.m[1][1] = cos(angle);
- pout->u.m[0][1] = sin(angle);
- pout->u.m[1][0] = -sin(angle);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixScaling(D3DXMATRIX *pout, FLOAT sx, FLOAT sy, FLOAT sz)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[0][0] = sx;
- pout->u.m[1][1] = sy;
- pout->u.m[2][2] = sz;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixShadow(D3DXMATRIX *pout, CONST D3DXVECTOR4 *plight, CONST D3DXPLANE *pplane)
- {
- D3DXPLANE Nplane;
- FLOAT dot;
- D3DXPlaneNormalize(&Nplane, pplane);
- dot = D3DXPlaneDot(&Nplane, plight);
- pout->u.m[0][0] = dot - Nplane.a * plight->x;
- pout->u.m[0][1] = -Nplane.a * plight->y;
- pout->u.m[0][2] = -Nplane.a * plight->z;
- pout->u.m[0][3] = -Nplane.a * plight->w;
- pout->u.m[1][0] = -Nplane.b * plight->x;
- pout->u.m[1][1] = dot - Nplane.b * plight->y;
- pout->u.m[1][2] = -Nplane.b * plight->z;
- pout->u.m[1][3] = -Nplane.b * plight->w;
- pout->u.m[2][0] = -Nplane.c * plight->x;
- pout->u.m[2][1] = -Nplane.c * plight->y;
- pout->u.m[2][2] = dot - Nplane.c * plight->z;
- pout->u.m[2][3] = -Nplane.c * plight->w;
- pout->u.m[3][0] = -Nplane.d * plight->x;
- pout->u.m[3][1] = -Nplane.d * plight->y;
- pout->u.m[3][2] = -Nplane.d * plight->z;
- pout->u.m[3][3] = dot - Nplane.d * plight->w;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixTransformation(D3DXMATRIX *pout, CONST D3DXVECTOR3 *pscalingcenter, CONST D3DXQUATERNION *pscalingrotation, CONST D3DXVECTOR3 *pscaling, CONST D3DXVECTOR3 *protationcenter, CONST D3DXQUATERNION *protation, CONST D3DXVECTOR3 *ptranslation)
- {
- D3DXMATRIX m1, m2, m3, m4, m5, m6, m7;
- D3DXQUATERNION prc;
- D3DXVECTOR3 psc, pt;
- if ( !pscalingcenter )
- {
- psc.x = 0.0f;
- psc.y = 0.0f;
- psc.z = 0.0f;
- }
- else
- {
- psc.x = pscalingcenter->x;
- psc.y = pscalingcenter->y;
- psc.z = pscalingcenter->z;
- }
- if ( !protationcenter )
- {
- prc.x = 0.0f;
- prc.y = 0.0f;
- prc.z = 0.0f;
- }
- else
- {
- prc.x = protationcenter->x;
- prc.y = protationcenter->y;
- prc.z = protationcenter->z;
- }
- if ( !ptranslation )
- {
- pt.x = 0.0f;
- pt.y = 0.0f;
- pt.z = 0.0f;
- }
- else
- {
- pt.x = ptranslation->x;
- pt.y = ptranslation->y;
- pt.z = ptranslation->z;
- }
- D3DXMatrixTranslation(&m1, -psc.x, -psc.y, -psc.z);
- if ( !pscalingrotation )
- {
- D3DXMatrixIdentity(&m2);
- D3DXMatrixIdentity(&m4);
- }
- else
- {
- D3DXMatrixRotationQuaternion(&m4, pscalingrotation);
- D3DXMatrixInverse(&m2, NULL, &m4);
- }
- if ( !pscaling ) D3DXMatrixIdentity(&m3);
- else D3DXMatrixScaling(&m3, pscaling->x, pscaling->y, pscaling->z);
- if ( !protation ) D3DXMatrixIdentity(&m6);
- else D3DXMatrixRotationQuaternion(&m6, protation);
- D3DXMatrixTranslation(&m5, psc.x - prc.x, psc.y - prc.y, psc.z - prc.z);
- D3DXMatrixTranslation(&m7, prc.x + pt.x, prc.y + pt.y, prc.z + pt.z);
- D3DXMatrixMultiply(&m1, &m1, &m2);
- D3DXMatrixMultiply(&m1, &m1, &m3);
- D3DXMatrixMultiply(&m1, &m1, &m4);
- D3DXMatrixMultiply(&m1, &m1, &m5);
- D3DXMatrixMultiply(&m1, &m1, &m6);
- D3DXMatrixMultiply(pout, &m1, &m7);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixTransformation2D(D3DXMATRIX *pout, CONST D3DXVECTOR2 *pscalingcenter, FLOAT scalingrotation, CONST D3DXVECTOR2 *pscaling, CONST D3DXVECTOR2 *protationcenter, FLOAT rotation, CONST D3DXVECTOR2 *ptranslation)
- {
- D3DXQUATERNION rot, sca_rot;
- D3DXVECTOR3 rot_center, sca, sca_center, trans;
- if ( pscalingcenter )
- {
- sca_center.x=pscalingcenter->x;
- sca_center.y=pscalingcenter->y;
- sca_center.z=0.0f;
- }
- else
- {
- sca_center.x=0.0f;
- sca_center.y=0.0f;
- sca_center.z=0.0f;
- }
- if ( pscaling )
- {
- sca.x=pscaling->x;
- sca.y=pscaling->y;
- sca.z=1.0f;
- }
- else
- {
- sca.x=1.0f;
- sca.y=1.0f;
- sca.z=1.0f;
- }
- if ( protationcenter )
- {
- rot_center.x=protationcenter->x;
- rot_center.y=protationcenter->y;
- rot_center.z=0.0f;
- }
- else
- {
- rot_center.x=0.0f;
- rot_center.y=0.0f;
- rot_center.z=0.0f;
- }
- if ( ptranslation )
- {
- trans.x=ptranslation->x;
- trans.y=ptranslation->y;
- trans.z=0.0f;
- }
- else
- {
- trans.x=0.0f;
- trans.y=0.0f;
- trans.z=0.0f;
- }
- rot.w=cos(rotation/2.0f);
- rot.x=0.0f;
- rot.y=0.0f;
- rot.z=sin(rotation/2.0f);
- sca_rot.w=cos(scalingrotation/2.0f);
- sca_rot.x=0.0f;
- sca_rot.y=0.0f;
- sca_rot.z=sin(scalingrotation/2.0f);
- D3DXMatrixTransformation(pout, &sca_center, &sca_rot, &sca, &rot_center, &rot, &trans);
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixTranslation(D3DXMATRIX *pout, FLOAT x, FLOAT y, FLOAT z)
- {
- D3DXMatrixIdentity(pout);
- pout->u.m[3][0] = x;
- pout->u.m[3][1] = y;
- pout->u.m[3][2] = z;
- return pout;
- }
- D3DXMATRIX* WINAPI D3DXMatrixTranspose(D3DXMATRIX *pout, CONST D3DXMATRIX *pm)
- {
- CONST D3DXMATRIX m = *pm;
- int i,j;
- for (i=0; i<4; i++)
- for (j=0; j<4; j++) pout->u.m[i][j] = m.u.m[j][i];
- return pout;
- }
- /*_________________D3DXMatrixStack____________________*/
- static const unsigned int INITIAL_STACK_SIZE = 32;
- HRESULT WINAPI D3DXCreateMatrixStack(DWORD flags, LPD3DXMATRIXSTACK* ppstack)
- {
- ID3DXMatrixStackImpl* object;
- TRACE("flags %#x, ppstack %p\n", flags, ppstack);
- object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ID3DXMatrixStackImpl));
- if ( object == NULL )
- {
- *ppstack = NULL;
- return E_OUTOFMEMORY;
- }
- object->ID3DXMatrixStack_iface.lpVtbl = &ID3DXMatrixStack_Vtbl;
- object->ref = 1;
- object->stack = HeapAlloc(GetProcessHeap(), 0, INITIAL_STACK_SIZE * sizeof(D3DXMATRIX));
- if (!object->stack)
- {
- HeapFree(GetProcessHeap(), 0, object);
- *ppstack = NULL;
- return E_OUTOFMEMORY;
- }
- object->current = 0;
- object->stack_size = INITIAL_STACK_SIZE;
- D3DXMatrixIdentity(&object->stack[0]);
- TRACE("Created matrix stack %p\n", object);
- *ppstack = &object->ID3DXMatrixStack_iface;
- return D3D_OK;
- }
- static inline ID3DXMatrixStackImpl *impl_from_ID3DXMatrixStack(ID3DXMatrixStack *iface)
- {
- return CONTAINING_RECORD(iface, ID3DXMatrixStackImpl, ID3DXMatrixStack_iface);
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_QueryInterface(ID3DXMatrixStack *iface, REFIID riid, void **ppobj)
- {
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- if (IsEqualGUID(riid, &IID_IUnknown) || IsEqualGUID(riid, &IID_ID3DXMatrixStack))
- {
- ID3DXMatrixStack_AddRef(iface);
- *ppobj = This;
- return S_OK;
- }
- *ppobj = NULL;
- WARN("(%p)->(%s,%p), not found\n", This, debugstr_guid(riid), ppobj);
- return E_NOINTERFACE;
- }
- static ULONG WINAPI ID3DXMatrixStackImpl_AddRef(ID3DXMatrixStack *iface)
- {
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- ULONG ref = InterlockedIncrement(&This->ref);
- TRACE("(%p) : AddRef from %d\n", This, ref - 1);
- return ref;
- }
- static ULONG WINAPI ID3DXMatrixStackImpl_Release(ID3DXMatrixStack* iface)
- {
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- ULONG ref = InterlockedDecrement(&This->ref);
- if (!ref)
- {
- HeapFree(GetProcessHeap(), 0, This->stack);
- HeapFree(GetProcessHeap(), 0, This);
- }
- TRACE("(%p) : ReleaseRef to %d\n", This, ref);
- return ref;
- }
- static D3DXMATRIX* WINAPI ID3DXMatrixStackImpl_GetTop(ID3DXMatrixStack *iface)
- {
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- return &This->stack[This->current];
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_LoadIdentity(ID3DXMatrixStack *iface)
- {
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- D3DXMatrixIdentity(&This->stack[This->current]);
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_LoadMatrix(ID3DXMatrixStack *iface, CONST D3DXMATRIX *pm)
- {
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- This->stack[This->current] = *pm;
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_MultMatrix(ID3DXMatrixStack *iface, CONST D3DXMATRIX *pm)
- {
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- D3DXMatrixMultiply(&This->stack[This->current], &This->stack[This->current], pm);
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_MultMatrixLocal(ID3DXMatrixStack *iface, CONST D3DXMATRIX *pm)
- {
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- D3DXMatrixMultiply(&This->stack[This->current], pm, &This->stack[This->current]);
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_Pop(ID3DXMatrixStack *iface)
- {
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- /* Popping the last element on the stack returns D3D_OK, but does nothing. */
- if (!This->current) return D3D_OK;
- if (This->current <= This->stack_size / 4 && This->stack_size >= INITIAL_STACK_SIZE * 2)
- {
- unsigned int new_size;
- D3DXMATRIX *new_stack;
- new_size = This->stack_size / 2;
- new_stack = HeapReAlloc(GetProcessHeap(), 0, This->stack, new_size * sizeof(D3DXMATRIX));
- if (new_stack)
- {
- This->stack_size = new_size;
- This->stack = new_stack;
- }
- }
- --This->current;
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_Push(ID3DXMatrixStack *iface)
- {
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- if (This->current == This->stack_size - 1)
- {
- unsigned int new_size;
- D3DXMATRIX *new_stack;
- if (This->stack_size > UINT_MAX / 2) return E_OUTOFMEMORY;
- new_size = This->stack_size * 2;
- new_stack = HeapReAlloc(GetProcessHeap(), 0, This->stack, new_size * sizeof(D3DXMATRIX));
- if (!new_stack) return E_OUTOFMEMORY;
- This->stack_size = new_size;
- This->stack = new_stack;
- }
- ++This->current;
- This->stack[This->current] = This->stack[This->current - 1];
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_RotateAxis(ID3DXMatrixStack *iface, CONST D3DXVECTOR3 *pv, FLOAT angle)
- {
- D3DXMATRIX temp;
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- D3DXMatrixRotationAxis(&temp, pv, angle);
- D3DXMatrixMultiply(&This->stack[This->current], &This->stack[This->current], &temp);
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_RotateAxisLocal(ID3DXMatrixStack *iface, CONST D3DXVECTOR3 *pv, FLOAT angle)
- {
- D3DXMATRIX temp;
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- D3DXMatrixRotationAxis(&temp, pv, angle);
- D3DXMatrixMultiply(&This->stack[This->current], &temp, &This->stack[This->current]);
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_RotateYawPitchRoll(ID3DXMatrixStack *iface, FLOAT x, FLOAT y, FLOAT z)
- {
- D3DXMATRIX temp;
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- D3DXMatrixRotationYawPitchRoll(&temp, x, y, z);
- D3DXMatrixMultiply(&This->stack[This->current], &This->stack[This->current], &temp);
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_RotateYawPitchRollLocal(ID3DXMatrixStack *iface, FLOAT x, FLOAT y, FLOAT z)
- {
- D3DXMATRIX temp;
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- D3DXMatrixRotationYawPitchRoll(&temp, x, y, z);
- D3DXMatrixMultiply(&This->stack[This->current], &temp, &This->stack[This->current]);
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_Scale(ID3DXMatrixStack *iface, FLOAT x, FLOAT y, FLOAT z)
- {
- D3DXMATRIX temp;
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- D3DXMatrixScaling(&temp, x, y, z);
- D3DXMatrixMultiply(&This->stack[This->current], &This->stack[This->current], &temp);
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_ScaleLocal(ID3DXMatrixStack *iface, FLOAT x, FLOAT y, FLOAT z)
- {
- D3DXMATRIX temp;
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- D3DXMatrixScaling(&temp, x, y, z);
- D3DXMatrixMultiply(&This->stack[This->current], &temp, &This->stack[This->current]);
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_Translate(ID3DXMatrixStack *iface, FLOAT x, FLOAT y, FLOAT z)
- {
- D3DXMATRIX temp;
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- D3DXMatrixTranslation(&temp, x, y, z);
- D3DXMatrixMultiply(&This->stack[This->current], &This->stack[This->current], &temp);
- return D3D_OK;
- }
- static HRESULT WINAPI ID3DXMatrixStackImpl_TranslateLocal(ID3DXMatrixStack *iface, FLOAT x, FLOAT y, FLOAT z)
- {
- D3DXMATRIX temp;
- ID3DXMatrixStackImpl *This = impl_from_ID3DXMatrixStack(iface);
- TRACE("iface %p\n", iface);
- D3DXMatrixTranslation(&temp, x, y, z);
- D3DXMatrixMultiply(&This->stack[This->current], &temp,&This->stack[This->current]);
- return D3D_OK;
- }
- static const ID3DXMatrixStackVtbl ID3DXMatrixStack_Vtbl =
- {
- ID3DXMatrixStackImpl_QueryInterface,
- ID3DXMatrixStackImpl_AddRef,
- ID3DXMatrixStackImpl_Release,
- ID3DXMatrixStackImpl_Pop,
- ID3DXMatrixStackImpl_Push,
- ID3DXMatrixStackImpl_LoadIdentity,
- ID3DXMatrixStackImpl_LoadMatrix,
- ID3DXMatrixStackImpl_MultMatrix,
- ID3DXMatrixStackImpl_MultMatrixLocal,
- ID3DXMatrixStackImpl_RotateAxis,
- ID3DXMatrixStackImpl_RotateAxisLocal,
- ID3DXMatrixStackImpl_RotateYawPitchRoll,
- ID3DXMatrixStackImpl_RotateYawPitchRollLocal,
- ID3DXMatrixStackImpl_Scale,
- ID3DXMatrixStackImpl_ScaleLocal,
- ID3DXMatrixStackImpl_Translate,
- ID3DXMatrixStackImpl_TranslateLocal,
- ID3DXMatrixStackImpl_GetTop
- };
- /*_________________D3DXPLANE________________*/
- D3DXPLANE* WINAPI D3DXPlaneFromPointNormal(D3DXPLANE *pout, CONST D3DXVECTOR3 *pvpoint, CONST D3DXVECTOR3 *pvnormal)
- {
- pout->a = pvnormal->x;
- pout->b = pvnormal->y;
- pout->c = pvnormal->z;
- pout->d = -D3DXVec3Dot(pvpoint, pvnormal);
- return pout;
- }
- D3DXPLANE* WINAPI D3DXPlaneFromPoints(D3DXPLANE *pout, CONST D3DXVECTOR3 *pv1, CONST D3DXVECTOR3 *pv2, CONST D3DXVECTOR3 *pv3)
- {
- D3DXVECTOR3 edge1, edge2, normal, Nnormal;
- edge1.x = 0.0f; edge1.y = 0.0f; edge1.z = 0.0f;
- edge2.x = 0.0f; edge2.y = 0.0f; edge2.z = 0.0f;
- D3DXVec3Subtract(&edge1, pv2, pv1);
- D3DXVec3Subtract(&edge2, pv3, pv1);
- D3DXVec3Cross(&normal, &edge1, &edge2);
- D3DXVec3Normalize(&Nnormal, &normal);
- D3DXPlaneFromPointNormal(pout, pv1, &Nnormal);
- return pout;
- }
- D3DXVECTOR3* WINAPI D3DXPlaneIntersectLine(D3DXVECTOR3 *pout, CONST D3DXPLANE *pp, CONST D3DXVECTOR3 *pv1, CONST D3DXVECTOR3 *pv2)
- {
- D3DXVECTOR3 direction, normal;
- FLOAT dot, temp;
- normal.x = pp->a;
- normal.y = pp->b;
- normal.z = pp->c;
- direction.x = pv2->x - pv1->x;
- direction.y = pv2->y - pv1->y;
- direction.z = pv2->z - pv1->z;
- dot = D3DXVec3Dot(&normal, &direction);
- if ( !dot ) return NULL;
- temp = ( pp->d + D3DXVec3Dot(&normal, pv1) ) / dot;
- pout->x = pv1->x - temp * direction.x;
- pout->y = pv1->y - temp * direction.y;
- pout->z = pv1->z - temp * direction.z;
- return pout;
- }
- D3DXPLANE* WINAPI D3DXPlaneNormalize(D3DXPLANE *pout, CONST D3DXPLANE *pp)
- {
- D3DXPLANE out;
- FLOAT norm;
- norm = sqrt(pp->a * pp->a + pp->b * pp->b + pp->c * pp->c);
- if ( norm )
- {
- out.a = pp->a / norm;
- out.b = pp->b / norm;
- out.c = pp->c / norm;
- out.d = pp->d / norm;
- }
- else
- {
- out.a = 0.0f;
- out.b = 0.0f;
- out.c = 0.0f;
- out.d = 0.0f;
- }
- *pout = out;
- return pout;
- }
- D3DXPLANE* WINAPI D3DXPlaneTransform(D3DXPLANE *pout, CONST D3DXPLANE *pplane, CONST D3DXMATRIX *pm)
- {
- CONST D3DXPLANE plane = *pplane;
- pout->a = pm->u.m[0][0] * plane.a + pm->u.m[1][0] * plane.b + pm->u.m[2][0] * plane.c + pm->u.m[3][0] * plane.d;
- pout->b = pm->u.m[0][1] * plane.a + pm->u.m[1][1] * plane.b + pm->u.m[2][1] * plane.c + pm->u.m[3][1] * plane.d;
- pout->c = pm->u.m[0][2] * plane.a + pm->u.m[1][2] * plane.b + pm->u.m[2][2] * plane.c + pm->u.m[3][2] * plane.d;
- pout->d = pm->u.m[0][3] * plane.a + pm->u.m[1][3] * plane.b + pm->u.m[2][3] * plane.c + pm->u.m[3][3] * plane.d;
- return pout;
- }
- D3DXPLANE* WINAPI D3DXPlaneTransformArray(D3DXPLANE* out, UINT outstride, CONST D3DXPLANE* in, UINT instride, CONST D3DXMATRIX* matrix, UINT elements)
- {
- UINT i;
- for (i = 0; i < elements; ++i) {
- D3DXPlaneTransform(
- (D3DXPLANE*)((char*)out + outstride * i),
- (CONST D3DXPLANE*)((const char*)in + instride * i),
- matrix);
- }
- return out;
- }
- /*_________________D3DXQUATERNION________________*/
- D3DXQUATERNION* WINAPI D3DXQuaternionBaryCentric(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq1, CONST D3DXQUATERNION *pq2, CONST D3DXQUATERNION *pq3, FLOAT f, FLOAT g)
- {
- D3DXQUATERNION temp1, temp2;
- D3DXQuaternionSlerp(pout, D3DXQuaternionSlerp(&temp1, pq1, pq2, f + g), D3DXQuaternionSlerp(&temp2, pq1, pq3, f+g), g / (f + g));
- return pout;
- }
- D3DXQUATERNION* WINAPI D3DXQuaternionExp(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq)
- {
- FLOAT norm;
- norm = sqrt(pq->x * pq->x + pq->y * pq->y + pq->z * pq->z);
- if (norm )
- {
- pout->x = sin(norm) * pq->x / norm;
- pout->y = sin(norm) * pq->y / norm;
- pout->z = sin(norm) * pq->z / norm;
- pout->w = cos(norm);
- }
- else
- {
- pout->x = 0.0f;
- pout->y = 0.0f;
- pout->z = 0.0f;
- pout->w = 1.0f;
- }
- return pout;
- }
- D3DXQUATERNION* WINAPI D3DXQuaternionInverse(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq)
- {
- D3DXQUATERNION out;
- FLOAT norm;
- norm = D3DXQuaternionLengthSq(pq);
- out.x = -pq->x / norm;
- out.y = -pq->y / norm;
- out.z = -pq->z / norm;
- out.w = pq->w / norm;
- *pout =out;
- return pout;
- }
- D3DXQUATERNION* WINAPI D3DXQuaternionLn(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq)
- {
- FLOAT norm, normvec, theta;
- norm = D3DXQuaternionLengthSq(pq);
- if ( norm > 1.0001f )
- {
- pout->x = pq->x;
- pout->y = pq->y;
- pout->z = pq->z;
- pout->w = 0.0f;
- }
- else if( norm > 0.99999f)
- {
- normvec = sqrt( pq->x * pq->x + pq->y * pq->y + pq->z * pq->z );
- theta = atan2(normvec, pq->w) / normvec;
- pout->x = theta * pq->x;
- pout->y = theta * pq->y;
- pout->z = theta * pq->z;
- pout->w = 0.0f;
- }
- else
- {
- FIXME("The quaternion (%f, %f, %f, %f) has a norm <1. This should not happen. Windows returns a result anyway. This case is not implemented yet.\n", pq->x, pq->y, pq->z, pq->w);
- }
- return pout;
- }
- D3DXQUATERNION* WINAPI D3DXQuaternionMultiply(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq1, CONST D3DXQUATERNION *pq2)
- {
- D3DXQUATERNION out;
- out.x = pq2->w * pq1->x + pq2->x * pq1->w + pq2->y * pq1->z - pq2->z * pq1->y;
- out.y = pq2->w * pq1->y - pq2->x * pq1->z + pq2->y * pq1->w + pq2->z * pq1->x;
- out.z = pq2->w * pq1->z + pq2->x * pq1->y - pq2->y * pq1->x + pq2->z * pq1->w;
- out.w = pq2->w * pq1->w - pq2->x * pq1->x - pq2->y * pq1->y - pq2->z * pq1->z;
- *pout = out;
- return pout;
- }
- D3DXQUATERNION* WINAPI D3DXQuaternionNormalize(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq)
- {
- D3DXQUATERNION out;
- FLOAT norm;
- norm = D3DXQuaternionLength(pq);
- out.x = pq->x / norm;
- out.y = pq->y / norm;
- out.z = pq->z / norm;
- out.w = pq->w / norm;
- *pout=out;
- return pout;
- }
- D3DXQUATERNION* WINAPI D3DXQuaternionRotationAxis(D3DXQUATERNION *pout, CONST D3DXVECTOR3 *pv, FLOAT angle)
- {
- D3DXVECTOR3 temp;
- D3DXVec3Normalize(&temp, pv);
- pout->x = sin( angle / 2.0f ) * temp.x;
- pout->y = sin( angle / 2.0f ) * temp.y;
- pout->z = sin( angle / 2.0f ) * temp.z;
- pout->w = cos( angle / 2.0f );
- return pout;
- }
- D3DXQUATERNION* WINAPI D3DXQuaternionRotationMatrix(D3DXQUATERNION *pout, CONST D3DXMATRIX *pm)
- {
- int i, maxi;
- FLOAT maxdiag, S, trace;
- trace = pm->u.m[0][0] + pm->u.m[1][1] + pm->u.m[2][2] + 1.0f;
- if ( trace > 1.0f)
- {
- pout->x = ( pm->u.m[1][2] - pm->u.m[2][1] ) / ( 2.0f * sqrt(trace) );
- pout->y = ( pm->u.m[2][0] - pm->u.m[0][2] ) / ( 2.0f * sqrt(trace) );
- pout->z = ( pm->u.m[0][1] - pm->u.m[1][0] ) / ( 2.0f * sqrt(trace) );
- pout->w = sqrt(trace) / 2.0f;
- return pout;
- }
- maxi = 0;
- maxdiag = pm->u.m[0][0];
- for (i=1; i<3; i++)
- {
- if ( pm->u.m[i][i] > maxdiag )
- {
- maxi = i;
- maxdiag = pm->u.m[i][i];
- }
- }
- switch( maxi )
- {
- case 0:
- S = 2.0f * sqrt(1.0f + pm->u.m[0][0] - pm->u.m[1][1] - pm->u.m[2][2]);
- pout->x = 0.25f * S;
- pout->y = ( pm->u.m[0][1] + pm->u.m[1][0] ) / S;
- pout->z = ( pm->u.m[0][2] + pm->u.m[2][0] ) / S;
- pout->w = ( pm->u.m[1][2] - pm->u.m[2][1] ) / S;
- break;
- case 1:
- S = 2.0f * sqrt(1.0f + pm->u.m[1][1] - pm->u.m[0][0] - pm->u.m[2][2]);
- pout->x = ( pm->u.m[0][1] + pm->u.m[1][0] ) / S;
- pout->y = 0.25f * S;
- pout->z = ( pm->u.m[1][2] + pm->u.m[2][1] ) / S;
- pout->w = ( pm->u.m[2][0] - pm->u.m[0][2] ) / S;
- break;
- case 2:
- S = 2.0f * sqrt(1.0f + pm->u.m[2][2] - pm->u.m[0][0] - pm->u.m[1][1]);
- pout->x = ( pm->u.m[0][2] + pm->u.m[2][0] ) / S;
- pout->y = ( pm->u.m[1][2] + pm->u.m[2][1] ) / S;
- pout->z = 0.25f * S;
- pout->w = ( pm->u.m[0][1] - pm->u.m[1][0] ) / S;
- break;
- }
- return pout;
- }
- D3DXQUATERNION* WINAPI D3DXQuaternionRotationYawPitchRoll(D3DXQUATERNION *pout, FLOAT yaw, FLOAT pitch, FLOAT roll)
- {
- pout->x = sin( yaw / 2.0f) * cos(pitch / 2.0f) * sin(roll / 2.0f) + cos(yaw / 2.0f) * sin(pitch / 2.0f) * cos(roll / 2.0f);
- pout->y = sin( yaw / 2.0f) * cos(pitch / 2.0f) * cos(roll / 2.0f) - cos(yaw / 2.0f) * sin(pitch / 2.0f) * sin(roll / 2.0f);
- pout->z = cos(yaw / 2.0f) * cos(pitch / 2.0f) * sin(roll / 2.0f) - sin( yaw / 2.0f) * sin(pitch / 2.0f) * cos(roll / 2.0f);
- pout->w = cos( yaw / 2.0f) * cos(pitch / 2.0f) * cos(roll / 2.0f) + sin(yaw / 2.0f) * sin(pitch / 2.0f) * sin(roll / 2.0f);
- return pout;
- }
- D3DXQUATERNION* WINAPI D3DXQuaternionSlerp(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq1, CONST D3DXQUATERNION *pq2, FLOAT t)
- {
- FLOAT dot, epsilon, temp, theta, u;
- epsilon = 1.0f;
- temp = 1.0f - t;
- u = t;
- dot = D3DXQuaternionDot(pq1, pq2);
- if ( dot < 0.0f )
- {
- epsilon = -1.0f;
- dot = -dot;
- }
- if( 1.0f - dot > 0.001f )
- {
- theta = acos(dot);
- temp = sin(theta * temp) / sin(theta);
- u = sin(theta * u) / sin(theta);
- }
- pout->x = temp * pq1->x + epsilon * u * pq2->x;
- pout->y = temp * pq1->y + epsilon * u * pq2->y;
- pout->z = temp * pq1->z + epsilon * u * pq2->z;
- pout->w = temp * pq1->w + epsilon * u * pq2->w;
- return pout;
- }
- D3DXQUATERNION* WINAPI D3DXQuaternionSquad(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq1, CONST D3DXQUATERNION *pq2, CONST D3DXQUATERNION *pq3, CONST D3DXQUATERNION *pq4, FLOAT t)
- {
- D3DXQUATERNION temp1, temp2;
- D3DXQuaternionSlerp(pout, D3DXQuaternionSlerp(&temp1, pq1, pq4, t), D3DXQuaternionSlerp(&temp2, pq2, pq3, t), 2.0f * t * (1.0f - t));
- return pout;
- }
- void WINAPI D3DXQuaternionToAxisAngle(CONST D3DXQUATERNION *pq, D3DXVECTOR3 *paxis, FLOAT *pangle)
- {
- paxis->x = pq->x;
- paxis->y = pq->y;
- paxis->z = pq->z;
- *pangle = 2.0f * acos(pq->w);
- }
- /*_________________D3DXVec2_____________________*/
- D3DXVECTOR2* WINAPI D3DXVec2BaryCentric(D3DXVECTOR2 *pout, CONST D3DXVECTOR2 *pv1, CONST D3DXVECTOR2 *pv2, CONST D3DXVECTOR2 *pv3, FLOAT f, FLOAT g)
- {
- pout->x = (1.0f-f-g) * (pv1->x) + f * (pv2->x) + g * (pv3->x);
- pout->y = (1.0f-f-g) * (pv1->y) + f * (pv2->y) + g * (pv3->y);
- return pout;
- }
- D3DXVECTOR2* WINAPI D3DXVec2CatmullRom(D3DXVECTOR2 *pout, CONST D3DXVECTOR2 *pv0, CONST D3DXVECTOR2 *pv1, CONST D3DXVECTOR2 *pv2, CONST D3DXVECTOR2 *pv3, FLOAT s)
- {
- pout->x = 0.5f * (2.0f * pv1->x + (pv2->x - pv0->x) *s + (2.0f *pv0->x - 5.0f * pv1->x + 4.0f * pv2->x - pv3->x) * s * s + (pv3->x -3.0f * pv2->x + 3.0f * pv1->x - pv0->x) * s * s * s);
- pout->y = 0.5f * (2.0f * pv1->y + (pv2->y - pv0->y) *s + (2.0f *pv0->y - 5.0f * pv1->y + 4.0f * pv2->y - pv3->y) * s * s + (pv3->y -3.0f * pv2->y + 3.0f * pv1->y - pv0->y) * s * s * s);
- return pout;
- }
- D3DXVECTOR2* WINAPI D3DXVec2Hermite(D3DXVECTOR2 *pout, CONST D3DXVECTOR2 *pv1, CONST D3DXVECTOR2 *pt1, CONST D3DXVECTOR2 *pv2, CONST D3DXVECTOR2 *pt2, FLOAT s)
- {
- FLOAT h1, h2, h3, h4;
- h1 = 2.0f * s * s * s - 3.0f * s * s + 1.0f;
- h2 = s * s * s - 2.0f * s * s + s;
- h3 = -2.0f * s * s * s + 3.0f * s * s;
- h4 = s * s * s - s * s;
- pout->x = h1 * (pv1->x) + h2 * (pt1->x) + h3 * (pv2->x) + h4 * (pt2->x);
- pout->y = h1 * (pv1->y) + h2 * (pt1->y) + h3 * (pv2->y) + h4 * (pt2->y);
- return pout;
- }
- D3DXVECTOR2* WINAPI D3DXVec2Normalize(D3DXVECTOR2 *pout, CONST D3DXVECTOR2 *pv)
- {
- D3DXVECTOR2 out;
- FLOAT norm;
- norm = D3DXVec2Length(pv);
- if ( !norm )
- {
- out.x = 0.0f;
- out.y = 0.0f;
- }
- else
- {
- out.x = pv->x / norm;
- out.y = pv->y / norm;
- }
- *pout=out;
- return pout;
- }
- D3DXVECTOR4* WINAPI D3DXVec2Transform(D3DXVECTOR4 *pout, CONST D3DXVECTOR2 *pv, CONST D3DXMATRIX *pm)
- {
- pout->x = pm->u.m[0][0] * pv->x + pm->u.m[1][0] * pv->y + pm->u.m[3][0];
- pout->y = pm->u.m[0][1] * pv->x + pm->u.m[1][1] * pv->y + pm->u.m[3][1];
- pout->z = pm->u.m[0][2] * pv->x + pm->u.m[1][2] * pv->y + pm->u.m[3][2];
- pout->w = pm->u.m[0][3] * pv->x + pm->u.m[1][3] * pv->y + pm->u.m[3][3];
- return pout;
- }
- D3DXVECTOR4* WINAPI D3DXVec2TransformArray(D3DXVECTOR4* out, UINT outstride, CONST D3DXVECTOR2* in, UINT instride, CONST D3DXMATRIX* matrix, UINT elements)
- {
- UINT i;
- for (i = 0; i < elements; ++i) {
- D3DXVec2Transform(
- (D3DXVECTOR4*)((char*)out + outstride * i),
- (CONST D3DXVECTOR2*)((const char*)in + instride * i),
- matrix);
- }
- return out;
- }
- D3DXVECTOR2* WINAPI D3DXVec2TransformCoord(D3DXVECTOR2 *pout, CONST D3DXVECTOR2 *pv, CONST D3DXMATRIX *pm)
- {
- D3DXVECTOR2 v;
- FLOAT norm;
- v = *pv;
- norm = pm->u.m[0][3] * pv->x + pm->u.m[1][3] * pv->y + pm->u.m[3][3];
- pout->x = (pm->u.m[0][0] * v.x + pm->u.m[1][0] * v.y + pm->u.m[3][0]) / norm;
- pout->y = (pm->u.m[0][1] * v.x + pm->u.m[1][1] * v.y + pm->u.m[3][1]) / norm;
- return pout;
- }
- D3DXVECTOR2* WINAPI D3DXVec2TransformCoordArray(D3DXVECTOR2* out, UINT outstride, CONST D3DXVECTOR2* in, UINT instride, CONST D3DXMATRIX* matrix, UINT elements)
- {
- UINT i;
- for (i = 0; i < elements; ++i) {
- D3DXVec2TransformCoord(
- (D3DXVECTOR2*)((char*)out + outstride * i),
- (CONST D3DXVECTOR2*)((const char*)in + instride * i),
- matrix);
- }
- return out;
- }
- D3DXVECTOR2* WINAPI D3DXVec2TransformNormal(D3DXVECTOR2 *pout, CONST D3DXVECTOR2 *pv, CONST D3DXMATRIX *pm)
- {
- CONST D3DXVECTOR2 v = *pv;
- pout->x = pm->u.m[0][0] * v.x + pm->u.m[1][0] * v.y;
- pout->y = pm->u.m[0][1] * v.x + pm->u.m[1][1] * v.y;
- return pout;
- }
- D3DXVECTOR2* WINAPI D3DXVec2TransformNormalArray(D3DXVECTOR2* out, UINT outstride, CONST D3DXVECTOR2 *in, UINT instride, CONST D3DXMATRIX *matrix, UINT elements)
- {
- UINT i;
- for (i = 0; i < elements; ++i) {
- D3DXVec2TransformNormal(
- (D3DXVECTOR2*)((char*)out + outstride * i),
- (CONST D3DXVECTOR2*)((const char*)in + instride * i),
- matrix);
- }
- return out;
- }
- /*_________________D3DXVec3_____________________*/
- D3DXVECTOR3* WINAPI D3DXVec3BaryCentric(D3DXVECTOR3 *pout, CONST D3DXVECTOR3 *pv1, CONST D3DXVECTOR3 *pv2, CONST D3DXVECTOR3 *pv3, FLOAT f, FLOAT g)
- {
- pout->x = (1.0f-f-g) * (pv1->x) + f * (pv2->x) + g * (pv3->x);
- pout->y = (1.0f-f-g) * (pv1->y) + f * (pv2->y) + g * (pv3->y);
- pout->z = (1.0f-f-g) * (pv1->z) + f * (pv2->z) + g * (pv3->z);
- return pout;
- }
- D3DXVECTOR3* WINAPI D3DXVec3CatmullRom( D3DXVECTOR3 *pout, CONST D3DXVECTOR3 *pv0, CONST D3DXVECTOR3 *pv1, CONST D3DXVECTOR3 *pv2, CONST D3DXVECTOR3 *pv3, FLOAT s)
- {
- pout->x = 0.5f * (2.0f * pv1->x + (pv2->x - pv0->x) *s + (2.0f *pv0->x - 5.0f * pv1->x + 4.0f * pv2->x - pv3->x) * s * s + (pv3->x -3.0f * pv2->x + 3.0f * pv1->x - pv0->x) * s * s * s);
- pout->y = 0.5f * (2.0f * pv1->y + (pv2->y - pv0->y) *s + (2.0f *pv0->y - 5.0f * pv1->y + 4.0f * pv2->y - pv3->y) * s * s + (pv3->y -3.0f * pv2->y + 3.0f * pv1->y - pv0->y) * s * s * s);
- pout->z = 0.5f * (2.0f * pv1->z + (pv2->z - pv0->z) *s + (2.0f *pv0->z - 5.0f * pv1->z + 4.0f * pv2->z - pv3->z) * s * s + (pv3->z -3.0f * pv2->z + 3.0f * pv1->z - pv0->z) * s * s * s);
- return pout;
- }
- D3DXVECTOR3* WINAPI D3DXVec3Hermite(D3DXVECTOR3 *pout, CONST D3DXVECTOR3 *pv1, CONST D3DXVECTOR3 *pt1, CONST D3DXVECTOR3 *pv2, CONST D3DXVECTOR3 *pt2, FLOAT s)
- {
- FLOAT h1, h2, h3, h4;
- h1 = 2.0f * s * s * s - 3.0f * s * s + 1.0f;
- h2 = s * s * s - 2.0f * s * s + s;
- h3 = -2.0f * s * s * s + 3.0f * s * s;
- h4 = s * s * s - s * s;
- pout->x = h1 * (pv1->x) + h2 * (pt1->x) + h3 * (pv2->x) + h4 * (pt2->x);
- pout->y = h1 * (pv1->y) + h2 * (pt1->y) + h3 * (pv2->y) + h4 * (pt2->y);
- pout->z = h1 * (pv1->z) + h2 * (pt1->z) + h3 * (pv2->z) + h4 * (pt2->z);
- return pout;
- }
- D3DXVECTOR3* WINAPI D3DXVec3Normalize(D3DXVECTOR3 *pout, CONST D3DXVECTOR3 *pv)
- {
- D3DXVECTOR3 out;
- FLOAT norm;
- norm = D3DXVec3Length(pv);
- if ( !norm )
- {
- out.x = 0.0f;
- out.y = 0.0f;
- out.z = 0.0f;
- }
- else
- {
- out.x = pv->x / norm;
- out.y = pv->y / norm;
- out.z = pv->z / norm;
- }
- *pout = out;
- return pout;
- }
- D3DXVECTOR3* WINAPI D3DXVec3Project(D3DXVECTOR3 *pout, CONST D3DXVECTOR3 *pv, CONST D3DVIEWPORT9 *pviewport, CONST D3DXMATRIX *pprojection, CONST D3DXMATRIX *pview, CONST D3DXMATRIX *pworld)
- {
- D3DXMATRIX m;
- D3DXVECTOR3 out;
- D3DXMatrixMultiply(&m, pworld, pview);
- D3DXMatrixMultiply(&m, &m, pprojection);
- D3DXVec3TransformCoord(&out, pv, &m);
- out.x = pviewport->X + ( 1.0f + out.x ) * pviewport->Width / 2.0f;
- out.y = pviewport->Y + ( 1.0f - out.y ) * pviewport->Height / 2.0f;
- out.z = pviewport->MinZ + out.z * ( pviewport->MaxZ - pviewport->MinZ );
- *pout = out;
- return pout;
- }
- D3DXVECTOR3* WINAPI D3DXVec3ProjectArray(D3DXVECTOR3* out, UINT outstride, CONST D3DXVECTOR3* in, UINT instride, CONST D3DVIEWPORT9* viewport, CONST D3DXMATRIX* projection, CONST D3DXMATRIX* view, CONST D3DXMATRIX* world, UINT elements)
- {
- UINT i;
- for (i = 0; i < elements; ++i) {
- D3DXVec3Project(
- (D3DXVECTOR3*)((char*)out + outstride * i),
- (CONST D3DXVECTOR3*)((const char*)in + instride * i),
- viewport, projection, view, world);
- }
- return out;
- }
- D3DXVECTOR4* WINAPI D3DXVec3Transform(D3DXVECTOR4 *pout, CONST D3DXVECTOR3 *pv, CONST D3DXMATRIX *pm)
- {
- pout->x = pm->u.m[0][0] * pv->x + pm->u.m[1][0] * pv->y + pm->u.m[2][0] * pv->z + pm->u.m[3][0];
- pout->y = pm->u.m[0][1] * pv->x + pm->u.m[1][1] * pv->y + pm->u.m[2][1] * pv->z + pm->u.m[3][1];
- pout->z = pm->u.m[0][2] * pv->x + pm->u.m[1][2] * pv->y + pm->u.m[2][2] * pv->z + pm->u.m[3][2];
- pout->w = pm->u.m[0][3] * pv->x + pm->u.m[1][3] * pv->y + pm->u.m[2][3] * pv->z + pm->u.m[3][3];
- return pout;
- }
- D3DXVECTOR4* WINAPI D3DXVec3TransformArray(D3DXVECTOR4* out, UINT outstride, CONST D3DXVECTOR3* in, UINT instride, CONST D3DXMATRIX* matrix, UINT elements)
- {
- UIN