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macmoy

distorted image HELP

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what causes this distortion?

I dont use LPD3DXSPRITE.
I made my Sprite class.




D3DSURFACE_DESC desc;
m_Tex->GetLevelDesc(0, &desc);



m_Width = (float)m_Rect.right - (float)m_Rect.left;
m_Height = (float)m_Rect.bottom - (float)m_Rect.top;

float neg_width;
float width;

neg_width = (-(float)m_Width/2.0f);
width = (float)m_Width/2.0f;

float neg_height;
float height;

neg_height = (-(float)m_Height/2.0f);
height = (float)m_Height/2.0f;



vertices[0].position = D3DXVECTOR3( (float)neg_width, (float)height, 0.0f );
vertices[1].position = D3DXVECTOR3( (float)width, (float)height, 0.0f );
vertices[2].position = D3DXVECTOR3( (float)neg_width, (float)neg_height, 0.0f );
vertices[3].position = D3DXVECTOR3( (float)width, (float)neg_height, 0.0f );


vertices[0].color = D3DCOLOR_ARGB( m_Alpha, 255, 255, 255 );
vertices[1].color = D3DCOLOR_ARGB( m_Alpha, 255, 255, 255 );
vertices[2].color = D3DCOLOR_ARGB( m_Alpha, 255, 255, 255 );
vertices[3].color = D3DCOLOR_ARGB( m_Alpha, 255, 255, 255 );

int tot_width = desc.Width;
int tot_height = desc.Height;



float val_x = (float)m_Rect.left / (float)tot_width;
float val_y = (float)m_Rect.top / (float)tot_height;
vertices[0].tu = val_x; vertices[0].tv = val_y;

val_x = (float)((float)m_Rect.left + m_Width) / (float)tot_width;
val_y = (float)m_Rect.top / (float)tot_height;
vertices[1].tu = val_x; vertices[1].tv = val_y;

val_x = (float)m_Rect.left / (float)tot_width;
val_y = (float)((float)m_Rect.top + m_Height) / (float)tot_height;
vertices[2].tu = val_x; vertices[2].tv = val_y;

val_x = (float)((float)m_Rect.left + m_Width) / (float)tot_width;
val_y = (float)((float)m_Rect.top + m_Height) / (float)tot_height;
vertices[3].tu = val_x; vertices[3].tv = val_y;






HRESULT res;
res = Device::getInstance()->getDevice()->CreateVertexBuffer( 4*sizeof(CUSTOMVERTEX), 0 /*Usage*/, D3DFVF_CUSTOMVERTEX, D3DPOOL_MANAGED, &m_Vb, NULL );

if ( FAILED( res ) )
{
MSGBOX( "Vertex Buffer Creation Failed!", "CreateVertexBuffer()" )
}

void *p_verts;

m_Vb->Lock( 0, sizeof(vertices), (void**)&p_verts, 0 );


memcpy( p_verts, vertices, sizeof(vertices) );

m_Vb->Unlock();

m_pVert = (CUSTOMVERTEX*)p_verts;




NOTE: that is a single image.

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