void MESHXFILE::InitXMesh(wchar_t *xfile) //传入x文件名，创建网格对象与纹理
{
LPD3DXBUFFER pAdjBuffer = NULL;
LPD3DXBUFFER pMtrlBuffer = NULL;
//读取x文件中的网格数据
D3DXLoadMeshFromX(xfile,
D3DXMESH_MANAGED,
_device,
&pAdjBuffer,
&pMtrlBuffer,
NULL,
&_NumMaterials,
&_mesh);
//读取材质和纹理数据
D3DXMATERIAL *pMaterial = (D3DXMATERIAL*)pMtrlBuffer->GetBufferPointer();
_materials = new D3DMATERIAL9[_NumMaterials]; //创建记录材质信息的对象
_textures = new LPDIRECT3DTEXTURE9[_NumMaterials]; //创建记录纹理的指针
for(DWORD i = 0;i < _NumMaterials;i++)
{
_materials[i] = pMaterial[i].MatD3D;
_materials[i].Ambient = _materials[i].Diffuse;
_textures[i] = NULL;
char *name_xfile;
name_xfile = new char;
if(pMaterial[i].pTextureFilename != NULL)
{
find_texture(xfile,&name_xfile,pMaterial[i].pTextureFilename);
D3DXCreateTextureFromFileA(_device,
name_xfile, //从pMtrBuffer得到起始地址
&_textures[i]); //存储纹理
}
if(name_xfile != NULL)
delete []name_xfile;
}
pAdjBuffer->Release();
pMtrlBuffer->Release();
//设置纹理过滤模式
}
void free_texture(GLContext *c, int h) {
GLTexture *t, **ht;
GLImage *im;
t = find_texture(c, h);
if (!t->prev) {
ht = &c->shared_state.texture_hash_table[t->handle % TEXTURE_HASH_TABLE_SIZE];
*ht = t->next;
} else {
t->prev->next = t->next;
}
if (t->next)
t->next->prev = t->prev;
for (int i = 0; i < MAX_TEXTURE_LEVELS; i++) {
im = &t->images[i];
if (im->pixmap)
im->pixmap.free();
}
gl_free(t);
}
void glInitTextures(GLContext *c) {
// textures
c->texture_2d_enabled = 0;
c->current_texture = find_texture(c, 0);
}
