C++ (Cpp) IDXGIOutput_GetDesc Examples

Example #1

File: SDL_windowsvideo.c Project: Helios-vmg/CopperRat

void
SDL_DXGIGetOutputInfo( int displayIndex, int *adapterIndex, int *outputIndex )
{
	void *pDXGIDLL;
	IDXGIFactory *pDXGIFactory;

	*adapterIndex = -1;
	*outputIndex = -1;

	if (!DXGI_LoadDLL(&pDXGIDLL, &pDXGIFactory)) {
		SDL_SetError("Unable to create DXGI interface");
	} else {
		SDL_DisplayData *pData = (SDL_DisplayData *)SDL_GetDisplayDriverData(displayIndex);

		if (!pData) {
			SDL_SetError("Invalid display index");
		} else {
			char *displayName = WIN_StringToUTF8(pData->DeviceName);
			int nAdapter = 0, nOutput = 0;
			IDXGIAdapter* pDXGIAdapter;
			while ( *adapterIndex == -1 && IDXGIFactory_EnumAdapters(pDXGIFactory, nAdapter, &pDXGIAdapter) != DXGI_ERROR_NOT_FOUND ) {
				IDXGIOutput* pDXGIOutput;
				while ( *adapterIndex == -1 && IDXGIAdapter_EnumOutputs(pDXGIAdapter, nOutput, &pDXGIOutput) != DXGI_ERROR_NOT_FOUND ) {
					DXGI_OUTPUT_DESC outputDesc;
					if (SUCCEEDED(IDXGIOutput_GetDesc(pDXGIOutput, &outputDesc))) {
						char *outputName = WIN_StringToUTF8(outputDesc.DeviceName);

						if(!SDL_strcmp(outputName, displayName)) {
							*adapterIndex = nAdapter;
							*outputIndex = nOutput;
						}

						SDL_free( outputName );
					}

					IDXGIOutput_Release( pDXGIOutput );
					nOutput++;
				}

				IDXGIAdapter_Release( pDXGIAdapter );
				nAdapter++;
			}
			SDL_free(displayName);
		}

		/* free up the D3D stuff we inited */
		IDXGIFactory_AddRef( pDXGIFactory );
		SDL_UnloadObject(pDXGIDLL);
	}
}

Example #2

File: SDL_windowsvideo.c Project: Cyberunner23/SDL-mirror

SDL_bool
SDL_DXGIGetOutputInfo(int displayIndex, int *adapterIndex, int *outputIndex)
{
#if !HAVE_DXGI_H
    if (adapterIndex) *adapterIndex = -1;
    if (outputIndex) *outputIndex = -1;
    SDL_SetError("SDL was compiled without DXGI support due to missing dxgi.h header");
    return SDL_FALSE;
#else
    SDL_DisplayData *pData = (SDL_DisplayData *)SDL_GetDisplayDriverData(displayIndex);
    void *pDXGIDLL;
    char *displayName;
    int nAdapter, nOutput;
    IDXGIFactory *pDXGIFactory;
    IDXGIAdapter *pDXGIAdapter;
    IDXGIOutput* pDXGIOutput;

    if (!adapterIndex) {
        SDL_InvalidParamError("adapterIndex");
        return SDL_FALSE;
    }

    if (!outputIndex) {
        SDL_InvalidParamError("outputIndex");
        return SDL_FALSE;
    }

    *adapterIndex = -1;
    *outputIndex = -1;

    if (!pData) {
        SDL_SetError("Invalid display index");
        return SDL_FALSE;
    }

    if (!DXGI_LoadDLL(&pDXGIDLL, &pDXGIFactory)) {
        SDL_SetError("Unable to create DXGI interface");
        return SDL_FALSE;
    }

    displayName = WIN_StringToUTF8(pData->DeviceName);
    nAdapter = 0;
    while (*adapterIndex == -1 && SUCCEEDED(IDXGIFactory_EnumAdapters(pDXGIFactory, nAdapter, &pDXGIAdapter))) {
        nOutput = 0;
        while (*adapterIndex == -1 && SUCCEEDED(IDXGIAdapter_EnumOutputs(pDXGIAdapter, nOutput, &pDXGIOutput))) {
            DXGI_OUTPUT_DESC outputDesc;
            if (SUCCEEDED(IDXGIOutput_GetDesc(pDXGIOutput, &outputDesc))) {
                char *outputName = WIN_StringToUTF8(outputDesc.DeviceName);
                if (SDL_strcmp(outputName, displayName) == 0) {
                    *adapterIndex = nAdapter;
                    *outputIndex = nOutput;
                }
                SDL_free(outputName);
            }
            IDXGIOutput_Release(pDXGIOutput);
            nOutput++;
        }
        IDXGIAdapter_Release(pDXGIAdapter);
        nAdapter++;
    }
    SDL_free(displayName);

    /* free up the DXGI factory */
    IDXGIFactory_Release(pDXGIFactory);
    SDL_UnloadObject(pDXGIDLL);

    if (*adapterIndex == -1) {
        return SDL_FALSE;
    } else {
        return SDL_TRUE;
    }
#endif
}