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Start implementing D3DXMatrix functions inside d3d_common.c

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This commit is contained in:
twinaphex 2017-10-02 18:50:54 +02:00
parent af9ec3f7a2
commit 6eb23efb54
2 changed files with 94 additions and 0 deletions
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82
gfx/common/d3d_common.c
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@ -901,3 +901,85 @@ D3DTEXTUREFILTERTYPE d3d_translate_filter(unsigned type)
return D3DTEXF_POINT;
}
void *d3d_matrix_transpose(void *_pout, const void *_pm)
{
unsigned i,j;
D3DMATRIX *pout = (D3DMATRIX*)_pout;
CONST D3DMATRIX *pm = (D3DMATRIX*)_pm;
for (i = 0; i < 4; i++)
{
for (j = 0; j < 4; j++)
pout->m[i][j] = pm->m[j][i];
}
return pout;
}
void *d3d_matrix_identity(void *_pout)
{
D3DMATRIX *pout = (D3DMATRIX*)_pout;
if ( !pout )
return NULL;
pout->m[0][1] = 0.0f;
pout->m[0][2] = 0.0f;
pout->m[0][3] = 0.0f;
pout->m[1][0] = 0.0f;
pout->m[1][2] = 0.0f;
pout->m[1][3] = 0.0f;
pout->m[2][0] = 0.0f;
pout->m[2][1] = 0.0f;
pout->m[2][3] = 0.0f;
pout->m[3][0] = 0.0f;
pout->m[3][1] = 0.0f;
pout->m[3][2] = 0.0f;
pout->m[0][0] = 1.0f;
pout->m[1][1] = 1.0f;
pout->m[2][2] = 1.0f;
pout->m[3][3] = 1.0f;
return pout;
}
void *d3d_matrix_ortho_off_center_lh(void *_pout, float l, float r, float b, float t, float zn, float zf)
{
D3DMATRIX *pout = (D3DMATRIX*)_pout;
d3d_matrix_identity(pout);
pout->m[0][0] = 2.0f / (r - l);
pout->m[1][1] = 2.0f / (t - b);
pout->m[2][2] = 1.0f / (zf -zn);
pout->m[3][0] = -1.0f -2.0f *l / (r - l);
pout->m[3][1] = 1.0f + 2.0f * t / (b - t);
pout->m[3][2] = zn / (zn -zf);
return pout;
}
void *d3d_matrix_multiply(void *_pout, const void *_pm1, const void *_pm2)
{
unsigned i,j;
D3DMATRIX *pout = (D3DMATRIX*)_pout;
CONST D3DMATRIX *pm1 = (CONST D3DMATRIX*)_pm1;
CONST D3DMATRIX *pm2 = (CONST D3DMATRIX*)_pm2;
for (i=0; i<4; i++)
{
for (j=0; j<4; j++)
pout->m[i][j] = pm1->m[i][0] * pm2->m[0][j] + pm1->m[i][1] * pm2->m[1][j] + pm1->m[i][2] * pm2->m[2][j] + pm1->m[i][3] * pm2->m[3][j];
}
return pout;
}
void *d3d_matrix_rotation_z(void *_pout, float angle)
{
D3DMATRIX *pout = (D3DMATRIX*)_pout;
d3d_matrix_identity(pout);
pout->m[0][0] = cos(angle);
pout->m[1][1] = cos(angle);
pout->m[0][1] = sin(angle);
pout->m[1][0] = -sin(angle);
return pout;
}

12
gfx/common/d3d_common.h
View File

@ -141,6 +141,18 @@ bool d3d_surface_lock_rect(void *data, void *data2);
void d3d_surface_unlock_rect(void *data);
void *d3d_matrix_transpose(void *_pout, const void *_pm);
void *d3d_matrix_multiply(void *_pout,
const void *_pm1, const void *_pm2);
void *d3d_matrix_ortho_off_center_lh(void *_pout,
float l, float r, float b, float t, float zn, float zf);
void * d3d_matrix_identity(void *_pout);
void *d3d_matrix_rotation_z(void *_pout, float angle);
bool d3d_create_device(LPDIRECT3DDEVICE *dev,
D3DPRESENT_PARAMETERS *d3dpp,
LPDIRECT3D d3d,