我有一个用C编写的OpenGL库,它使用C#应用程序使用C/C++LI适配器.我的问题是,如果将应用程序用于使用Nvidia Optimus技术的笔记本电脑,该应用程序将不会使用硬件加速并失败.
我试图使用在Nvidias文档http://developer.download.nvidia.com/devzone/devcenter/gamegraphics/files/OptimusRenderingPolicies.pdf中找到的信息
关于将libs链接到我的C -dll,并从我的OpenGL库导出NvOptimusEnablement但是失败.
我想我不得不与.exe连接到.exe的.exe文件
对于我们来说,使用配置文件不是一个好选择,因为我们需要确保使用nvidia硬件.
有没有一些C#应用程序可以强制Optimus使用Nvidia芯片组而不是集成的英特尔芯片组？
解决方法
如果您的软件在Intel上失败,那么您将无法在50％的笔记本电脑上运行它.所以我建议修改这个.
不如说,您可以通过代码完美地创建配置文件.只需使用NvAPI.
这个代码完全是这样的,但要小心,你可能不应该混淆全局配置文件并创建自己的代码：
NvAPI_Status status;
// (0) Initialize NVAPI. This must be done first of all
status = NvAPI_Initialize();
if (status != NVAPI_OK)
PrintError(status,__LINE__);
// (1) Create the session handle to access driver settings
NvDRSSessionHandle hSession = 0;
status = NvAPI_DRS_CreateSession(&hSession);
if (status != NVAPI_OK)
PrintError(status,__LINE__);
// (2) load all the system settings into the session
status = NvAPI_DRS_LoadSettings(hSession);
if (status != NVAPI_OK)
PrintError(status,__LINE__);
// (3) Obtain the Base profile. Any setting needs to be inside
// a profile,putting a setting on the Base Profile enforces it
// for all the processes on the system
NvDRSProfileHandle hProfile = 0;
status = NvAPI_DRS_GetBaseProfile(hSession,&hProfile);
if (status != NVAPI_OK)
PrintError(status,__LINE__);
NVDRS_SETTING dRSSetting1 = {0};
dRSSetting1.version = NVDRS_SETTING_VER;
dRSSetting1.settingId = SHIM_MCCOMPAT_ID;
dRSSetting1.settingType = NVDRS_DWORD_TYPE;
NVDRS_SETTING dRSSetting2 = {0};
dRSSetting2.version = NVDRS_SETTING_VER;
dRSSetting2.settingId = SHIM_RENDERING_MODE_ID;
dRSSetting2.settingType = NVDRS_DWORD_TYPE;
NVDRS_SETTING dRSSetting3 = {0};
dRSSetting3.version = NVDRS_SETTING_VER;
dRSSetting3.settingId = SHIM_RENDERING_OPTIONS_ID;
dRSSetting3.settingType = NVDRS_DWORD_TYPE;
if( ForceIntegrated ){
dRSSetting1.u32CurrentValue = SHIM_MCCOMPAT_INTEGRATED;
dRSSetting2.u32CurrentValue = SHIM_RENDERING_MODE_INTEGRATED;
dRSSetting3.u32CurrentValue = SHIM_RENDERING_OPTIONS_DEFAULT_RENDERING_MODE | SHIM_RENDERING_OPTIONS_IGPU_TRANSCODING;
}else{
dRSSetting1.u32CurrentValue = SHIM_MCCOMPAT_ENABLE;
dRSSetting2.u32CurrentValue = SHIM_RENDERING_MODE_ENABLE;
dRSSetting3.u32CurrentValue = SHIM_RENDERING_OPTIONS_DEFAULT_RENDERING_MODE;
}
status = NvAPI_DRS_SetSetting(hSession,hProfile,&dRSSetting1);
if (status != NVAPI_OK)
PrintError(status,__LINE__);
status = NvAPI_DRS_SetSetting(hSession,&dRSSetting2);
if (status != NVAPI_OK)
PrintError(status,&dRSSetting3);
if (status != NVAPI_OK)
PrintError(status,__LINE__);
// (5) Now we apply (or save) our changes to the system
status = NvAPI_DRS_SaveSettings(hSession);
if (status != NVAPI_OK)
PrintError(status,__LINE__);
// (6) We clean up. This is analogous to doing a free()
NvAPI_DRS_DestroySession(hSession);
hSession = 0;
在启动时,测试您的个人资料是否存在.如果没有,创建它(你可能也必须重新启动自己).
NvAPI是一个静态库,并且将在非NVIDIA硬件上正常返回错误代码,因此您可以安全地发货.
// Applications exporting this symbol with this value will be automatically // directed to the high-performance GPU on nVidia Optimus systems // GLFWAPI DWORD NvOptimusEnablement = 0x00000001;
