bool c_gbuffer::SetEffectVar(LPD3DXEFFECT& effect,
bool& variable_used,
cstring texture_semantic,
Render::s_render_target& target,
cstring x_handle_semantic, const int x_index,
cstring y_handle_semantic, const int y_index,
cstring z_handle_semantic, const int z_index,
cstring w_handle_semantic, const int w_index)
{
variable_used = false;
if(!effect) return false;
//find the intended texture handle
D3DXHANDLE tex_handle = effect->GetParameterBySemantic(NULL, texture_semantic);
variable_used = (tex_handle != NULL) ? true : false;
if(!tex_handle) return true;
else if(tex_handle && !target.IsEnabled()) return false;
// set the texture variable
effect->SetTexture(tex_handle, target.texture);
// search for the index variables handles
// then set them to the indices for the intended data
D3DXHANDLE index_handle = NULL;
if(x_handle_semantic)
{
index_handle = effect->GetParameterBySemantic(NULL, x_handle_semantic);
if(!index_handle)
return false;
effect->SetInt(index_handle, x_index);
}
if(y_handle_semantic)
{
index_handle = effect->GetParameterBySemantic(NULL, y_handle_semantic);
if(!index_handle)
return false;
effect->SetInt(index_handle, y_index);
}
if(z_handle_semantic)
{
index_handle = effect->GetParameterBySemantic(NULL, z_handle_semantic);
if(!index_handle)
return false;
effect->SetInt(index_handle, z_index);
}
if(w_handle_semantic)
{
index_handle = effect->GetParameterBySemantic(NULL, w_handle_semantic);
if(!index_handle)
return false;
effect->SetInt(index_handle, w_index);
}
return true;
}
//---------------------------------------------------------------------------------------
// シェーダ初期化
//---------------------------------------------------------------------------------------
HRESULT InitShader()
{
// シェーダ読み込み
HRESULT hr = D3DXCreateEffectFromFile(g_pD3DDevice,
PATH_FXTEST, NULL, NULL, 0, NULL, &g_pFX, NULL);
if (FAILED(hr)) {
TCHAR szMsg[1024];
_stprintf(szMsg, _T("シェーダ(%s)読み込みエラー"),
PATH_FXTEST);
MessageBox(g_hWnd, szMsg, _T("error"), MB_OK);
return hr;
}
// ハンドル取得
struct _param {
LPCSTR pszName;
D3DXHANDLE* pHandle;
} param[] = {
{"WORLDVIEWPROJECTION", &g_hMatWVP},
{"WORLD", &g_hMatW},
{"CAMERAPOSITION", &g_hCamera},
{"MATERIALDIFFUSE", &g_hDiffuse},
{"MATERIALSPECULAR", &g_hSpecular},
{"MATERIALPOWER", &g_hPower},
{"MATERIALAMBIENT", &g_hAmbient},
{"MATERIALTEXTURE", &g_hTexture},
{"MATERIALTEXTUREVALID", &g_hTexEnable},
};
for (int i = 0; i < _countof(param); i++) {
*param[i].pHandle =
g_pFX->GetParameterBySemantic(NULL,
param[i].pszName);
}
g_hLight = g_pFX->GetParameterByName(NULL, "light");
for (int i = 0; i < MAX_TECHNIQUE; ++i) {
g_hTech[i] = g_pFX->GetTechnique(i);
}
return hr;
}
