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Added NvOptimusEnablement.

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This commit is contained in:
Camilla Berglund 2013-08-07 18:07:33 +02:00
parent a024e61bf8
commit 735bc2d815
4 changed files with 21 additions and 0 deletions
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4
CMakeLists.txt
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@ -18,6 +18,7 @@ option(GLFW_DOCUMENT_INTERNALS "Include internals in documentation" OFF)
if (WIN32) if (WIN32)
option(GLFW_USE_DWM_SWAP_INTERVAL "Set swap interval even when DWM compositing is enabled" OFF) option(GLFW_USE_DWM_SWAP_INTERVAL "Set swap interval even when DWM compositing is enabled" OFF)
option(GLFW_USE_OPTIMUS_HPG "Force use of high-performance GPU on Optimus systems" OFF)
endif() endif()
if (APPLE) if (APPLE)
@ -159,6 +160,9 @@ if (_GLFW_WIN32)
if (GLFW_USE_DWM_SWAP_INTERVAL) if (GLFW_USE_DWM_SWAP_INTERVAL)
set(_GLFW_USE_DWM_SWAP_INTERVAL 1) set(_GLFW_USE_DWM_SWAP_INTERVAL 1)
endif() endif()
if (GLFW_USE_OPTIMUS_HPG)
set(_GLFW_USE_OPTIMUS_HPG 1)
endif()
endif() endif()
#-------------------------------------------------------------------- #--------------------------------------------------------------------

6
README.md
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@ -173,6 +173,10 @@ static library version of the Visual C++ runtime library.
when DWM compositing is enabled. This can lead to severe jitter and is not when DWM compositing is enabled. This can lead to severe jitter and is not
usually recommended. usually recommended.
`GLFW_USE_OPTIMUS_HPG` determines whether to export the `NvOptimusEnablement`
symbol, which forces the use of the high-performance GPU on nVidia Optimus
systems.
#### EGL specific options #### EGL specific options
@ -204,6 +208,8 @@ See the [GLFW documentation](http://www.glfw.org/docs/latest/).
- Bugfix: The default for `GLFW_ALPHA_BITS` was set to zero - Bugfix: The default for `GLFW_ALPHA_BITS` was set to zero
- [Win32] Added `_GLFW_USE_DWM_SWAP_INTERVAL` for forcing the swap interval - [Win32] Added `_GLFW_USE_DWM_SWAP_INTERVAL` for forcing the swap interval
to be set even when DWM compositing is enabled to be set even when DWM compositing is enabled
- [Win32] Added support for forcing the use of the high-performance GPU
on nVidia Optimus systems
- [Win32] Bugfix: The clipboard string was not freed on terminate - [Win32] Bugfix: The clipboard string was not freed on terminate
- [Win32] Bugfix: Entry points for OpenGL 1.0 and 1.1 functions were not - [Win32] Bugfix: Entry points for OpenGL 1.0 and 1.1 functions were not
returned by `glfwGetProcAddress` returned by `glfwGetProcAddress`

2
src/config.h.in
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@ -55,6 +55,8 @@
#cmakedefine _GLFW_NO_DLOAD_WINMM #cmakedefine _GLFW_NO_DLOAD_WINMM
// Define this to 1 if glfwSwapInterval should ignore DWM compositing status // Define this to 1 if glfwSwapInterval should ignore DWM compositing status
#cmakedefine _GLFW_USE_DWM_SWAP_INTERVAL #cmakedefine _GLFW_USE_DWM_SWAP_INTERVAL
// Define this to 1 to force use of high-performance GPU on Optimus systems
#cmakedefine _GLFW_USE_OPTIMUS_HPG
// Define this to 1 if glXGetProcAddress is available // Define this to 1 if glXGetProcAddress is available
#cmakedefine _GLFW_HAS_GLXGETPROCADDRESS #cmakedefine _GLFW_HAS_GLXGETPROCADDRESS

9
src/win32_init.c
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@ -36,6 +36,15 @@
#endif // __BORLANDC__ #endif // __BORLANDC__
#if defined(_GLFW_USE_OPTIMUS_HPG)
// Applications exporting this symbol with this value will be automatically
// directed to the high-performance GPU on nVidia Optimus systems
//
GLFWAPI DWORD NvOptimusEnablement = 0x00000001;
#endif // _GLFW_USE_OPTIMUS_HPG
#if defined(_GLFW_BUILD_DLL) #if defined(_GLFW_BUILD_DLL)
// GLFW DLL entry point // GLFW DLL entry point