{"id":4482,"date":"2015-12-08T16:37:39","date_gmt":"2015-12-08T16:37:39","guid":{"rendered":"http:\/\/anthroponaute.fr\/blog-informatique\/?p=4482"},"modified":"2015-12-10T09:19:05","modified_gmt":"2015-12-10T09:19:05","slug":"obtenir-les-informations-sur-votre-cg-avec-les-interfaces-dxgi","status":"publish","type":"post","link":"https:\/\/www.la-porte-des-nebuleuses.net\/blog-informatique\/?p=4482","title":{"rendered":"Obtenir les informations de votre CG avec les interfaces DXGI*"},"content":{"rendered":"

\"gtx\"<\/a><\/p>\n

Intro :<\/strong><\/p>\n

Il peut \u00eatre utile d’obtenir le nom de la carte vid\u00e9o, sa m\u00e9moire vive maximum et tous ses modes d’affichage possibles pour un jeu vid\u00e9o.<\/p>\n

Pr\u00e9requis :<\/strong><\/p>\n

– Savoir initialiser DirectX 10<\/p>\n

Explications :<\/strong><\/p>\n

Avant tout, voici deux petites macros affichant les erreurs tout en retournant false <\/em>s’il y a en une !<\/p>\n

\r\n#define ShowMessageBoxDXError(hr) char buf[2048]; \\\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 sprintf(buf, "Error : %s\\nDescription : %s\\n\\nFile : %s\\n\\nLine : %d\\n\\nFunction : %s", DXGetErrorStringA(hr), DXGetErrorDescriptionA(hr), __FILE__, __LINE__, __FUNCTION__); \\\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 MessageBoxA(nullptr, buf, "Erreur", MB_ICONHAND | MB_OK);\r\n\r\n#if defined(DEBUG) | defined(_DEBUG)\r\n\u00a0\u00a0\u00a0 #ifndef HR_FAILED_RETURN_FALSE\r\n\u00a0\u00a0\u00a0 #define HR_FAILED_RETURN_FALSE(x)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \\\r\n\u00a0\u00a0\u00a0 {\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \\\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if (FAILED(x))\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \\\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 {\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \\\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ShowMessageBoxDXError(x)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \\\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0return false;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \\\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \\\r\n\u00a0\u00a0\u00a0 }\r\n\u00a0\u00a0\u00a0 #endif\r\n\u00a0\r\n#else\r\n\u00a0\u00a0\u00a0 #ifndef HR_FAILED_RETURN_FALSE\r\n\u00a0\u00a0\u00a0 #define HR_FAILED_RETURN_FALSE(x) x;\r\n\u00a0\u00a0\u00a0 #endif\r\n#endif\r\n\r\n<\/pre>\n
 <\/p>\n
Voici la fonction qui affiche les informations sur la carte graphique :<\/p>\n
\r\n\r\nbool GetGPUInfo()\r\n{\r\n\u00a0\u00a0 \u00a0HRESULT hr = S_OK;\r\n\r\n\u00a0\u00a0 \u00a0uint32 iNumModes;\r\n\r\n\u00a0\u00a0 \u00a0IDXGIFactory* pDXGIFactory = nullptr;\r\n\u00a0\u00a0 \u00a0IDXGIAdapter* pDXGIAdapter = nullptr;\r\n\u00a0\u00a0 \u00a0IDXGIOutput* pDXGIAdapterOutput = nullptr;\r\n\r\n\u00a0\u00a0 \u00a0DXGI_MODE_DESC* pDisplayModeList = nullptr;\r\n\r\n\u00a0\u00a0 \u00a0DXGI_ADAPTER_DESC adapterDesc;\r\n\r\n\u00a0\u00a0 \u00a0\/\/ Cr\u00e9\u00e9e une interface m\u00e9tier "factory" DirectX\r\n\u00a0\u00a0 \u00a0hr = CreateDXGIFactory(__uuidof(IDXGIFactory), (void**)&pDXGIFactory);\r\n\r\n\u00a0\u00a0 \u00a0HR_FAILED_RETURN_FALSE(hr);\r\n\r\n\u00a0\u00a0 \u00a0\/\/ Utilise la "factory"\r\n\u00a0\u00a0 \u00a0hr = pDXGIFactory->EnumAdapters(0, &pDXGIAdapter);\r\n\r\n\u00a0\u00a0 \u00a0HR_FAILED_RETURN_FALSE(hr);\r\n\r\n\u00a0\u00a0 \u00a0\/\/ Enum\u00e8re l'adpatateur principal de l'\u00e9cran\r\n\u00a0\u00a0 \u00a0hr = pDXGIAdapter->EnumOutputs(0, &pDXGIAdapterOutput);\r\n\r\n\u00a0\u00a0 \u00a0HR_FAILED_RETURN_FALSE(hr);\r\n\r\n\u00a0\u00a0 \u00a0\/\/ Obtient le nombre de modes d'affichage qui corresppond \u00e0 DXGI_FORMAT_R8G8B8A8_UNORM \u00a0\r\n\u00a0\u00a0 \u00a0hr = pDXGIAdapterOutput->GetDisplayModeList(DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_ENUM_MODES_INTERLACED, &iNumModes, nullptr);\r\n\r\n\u00a0\u00a0 \u00a0HR_FAILED_RETURN_FALSE(hr);\r\n\r\n\u00a0\u00a0 \u00a0\/* Cr\u00e9\u00e9 une liste qui d\u00e9tient tous les modes d'affichage possibles pour cette carte graphique et\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 le format d'affichage *\/\r\n\u00a0\u00a0 \u00a0pDisplayModeList = new DXGI_MODE_DESC[iNumModes];\r\n\r\n\u00a0\u00a0 \u00a0if (!pDisplayModeList)\r\n\u00a0\u00a0 \u00a0{\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0return false;\r\n\u00a0\u00a0 \u00a0}\r\n\r\n\u00a0\u00a0 \u00a0\/\/ Remplie la pr\u00e9c\u00e9dente structure\r\n\u00a0\u00a0 \u00a0hr = pDXGIAdapterOutput->GetDisplayModeList(DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_ENUM_MODES_INTERLACED, &iNumModes, pDisplayModeList);\r\n\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0 \u00a0HR_FAILED_RETURN_FALSE(hr);\r\n\r\n\u00a0\u00a0 \u00a0\/* On parcourt tous les modes d'affichages possibles\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 et on trouve celui qui correspond \u00e0 la taille sp\u00e9cifi\u00e9e\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 en param\u00e8tre ; puis on enregistre le num\u00e9rateur et le d\u00e9nominateur\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 du taux de rafraichissement de l'\u00e9cran\r\n\u00a0\u00a0 \u00a0*\/\r\n\u00a0\u00a0 \u00a0std::cout << "Modes d'affichage pour le format : DXGI_FORMAT_R8G8B8A8_UNORM" << std::endl << std::endl;\r\n\r\n\u00a0\u00a0 \u00a0for (uint32 i = 0; i < iNumModes; i++)\r\n\u00a0\u00a0 \u00a0{\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0DXGI_MODE_DESC desc = pDisplayModeList[i];\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0std::string sRefreshRate = std::to_string(desc.RefreshRate.Numerator \/ desc.RefreshRate.Denominator) + "Hz";\r\n\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0std::cout << desc.Width << "x" << desc.Height << " " << sRefreshRate << std::endl;\r\n\u00a0\u00a0 \u00a0}\r\n\r\n\u00a0\u00a0 \u00a0std::cout << std::endl;\r\n\r\n\u00a0\u00a0 \u00a0hr = pDXGIAdapter->GetDesc(&adapterDesc);\r\n\r\n\u00a0\u00a0 \u00a0HR_FAILED_RETURN_FALSE(hr);\r\n\r\n\u00a0\u00a0 \u00a0\/\/ On enregistre la taille de la m\u00e9moire vid\u00e9o en m\u00e9gabytes\r\n\u00a0\u00a0 \u00a0m_iVideoCardMemory = (adapterDesc.DedicatedVideoMemory \/ 1024 \/ 1024);\r\n\r\n\u00a0\u00a0 \u00a0size_t iStringLength = 0;\r\n\u00a0\u00a0 \u00a0\/\/ Convertie le nom la carte vid\u00e9o dans une cha\u00eene de caract\u00e8res\r\n\u00a0\u00a0 \u00a0int iError = wcstombs_s(&iStringLength, m_sVideoCardDescription, 128, adapterDesc.Description, 128);\r\n\r\n\u00a0\u00a0 \u00a0if (iError != 0)\r\n\u00a0\u00a0 \u00a0{\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0return false;\r\n\u00a0\u00a0 \u00a0}\r\n\r\n\u00a0\u00a0 \u00a0std::cout << std::endl;\r\n\r\n\u00a0\u00a0 \u00a0std::cout << m_sVideoCardDescription << std::endl;\r\n\r\n\u00a0\u00a0 \u00a0std::cout << "Video memory = " << std::to_string(m_iVideoCardMemory) << " MB" << std::endl;\r\n\r\n\u00a0\u00a0 \u00a0std::cout << std::endl;\r\n\r\n\u00a0\u00a0 \u00a0SAFE_DELETE_ARRAY(pDisplayModeList);\r\n\r\n\u00a0\u00a0 \u00a0SAFE_RELEASE(pDXGIAdapterOutput);\r\n\u00a0\u00a0 \u00a0SAFE_RELEASE(pDXGIAdapter);\r\n\u00a0\u00a0 \u00a0SAFE_RELEASE(pDXGIFactory);\r\n\r\n\u00a0\u00a0 \u00a0return true;\r\n}\r\n\r\n<\/pre>\n
 <\/p>\n
Voici la fonction qui affiche les capacit\u00e9s de la carte graphique en mati\u00e8re d’anti-aliasing (d\u00e9j\u00e0 pr\u00e9sent\u00e9e dans les articles pr\u00e9c\u00e9dents) :<\/p>\n
\r\n\r\nvoid PrintFSAAMaximumLevel()\r\n{\r\n\u00a0\u00a0 \u00a0HRESULT hr = S_OK;\r\n\u00a0\u00a0 \u00a0UINT maxQualityLevel = 1;\r\n\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0 \u00a0for (uint32 iSampleCount = 1; iSampleCount <= D3D10_MAX_MULTISAMPLE_SAMPLE_COUNT; iSampleCount++)\r\n\u00a0\u00a0 \u00a0{\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0hr = m_pd3dDevice->CheckMultisampleQualityLevels(\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0DXGI_FORMAT_R8G8B8A8_UNORM, iSampleCount, &maxQualityLevel);\r\n\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0if (hr != S_OK)\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0{\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0std::cout << "CheckMultisampleQualityLevels a \u00e9choue." << std::endl;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0}\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0if (maxQualityLevel > 0)\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0{\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0std::cout << "MSAA " << iSampleCount << "X supportee par la carte video avec " <<\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0maxQualityLevel << " niveau(x) de qualite." << std::endl;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0}\r\n\u00a0\u00a0 \u00a0}\r\n}\r\n<\/pre>\n
 <\/p>\n
Voici la sortie de la console une fois affich\u00e9s les modes d’affichage :<\/p>\n
\"CG_specs\"<\/a><\/p>\n
 <\/p>\n
R\u00e9sum\u00e9 :<\/strong><\/p>\n
Nous avons appris comment obtenir les informations \u00e0 partir de la carte graphique.<\/p>\n","protected":false},"excerpt":{"rendered":"
Intro : Il peut \u00eatre utile d’obtenir le nom de la carte vid\u00e9o, sa m\u00e9moire vive maximum et tous ses modes d’affichage possibles pour un jeu vid\u00e9o. Pr\u00e9requis : – Savoir initialiser DirectX 10 Explications : Avant tout, voici deux petites macros affichant les erreurs tout en retournant false s’il y a en une ! […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[],"_links":{"self":[{"href":"https:\/\/www.la-porte-des-nebuleuses.net\/blog-informatique\/index.php?rest_route=\/wp\/v2\/posts\/4482"}],"collection":[{"href":"https:\/\/www.la-porte-des-nebuleuses.net\/blog-informatique\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.la-porte-des-nebuleuses.net\/blog-informatique\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.la-porte-des-nebuleuses.net\/blog-informatique\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.la-porte-des-nebuleuses.net\/blog-informatique\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4482"}],"version-history":[{"count":23,"href":"https:\/\/www.la-porte-des-nebuleuses.net\/blog-informatique\/index.php?rest_route=\/wp\/v2\/posts\/4482\/revisions"}],"predecessor-version":[{"id":4515,"href":"https:\/\/www.la-porte-des-nebuleuses.net\/blog-informatique\/index.php?rest_route=\/wp\/v2\/posts\/4482\/revisions\/4515"}],"wp:attachment":[{"href":"https:\/\/www.la-porte-des-nebuleuses.net\/blog-informatique\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4482"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.la-porte-des-nebuleuses.net\/blog-informatique\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4482"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.la-porte-des-nebuleuses.net\/blog-informatique\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}