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X11: Load Xxf86vm at run-time

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This commit is contained in:
Camilla Löwy 2016-12-10 23:41:19 +01:00
parent 21eeaffc23
commit 6eae8f22dc
9 changed files with 34 additions and 47 deletions
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2
.github/CONTRIBUTING.md vendored
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@ -140,7 +140,7 @@ include the __GLFW release version__ (e.g. `3.1.2`), otherwise include the
__GLFW commit ID__ (e.g. `3795d78b14ef06008889cc422a1fb8d642597751`) from Git.
Please also include the __GLFW version string__ (`3.2.0 X11 EGL clock_gettime
/dev/js XI Xf86vm`), as described
/dev/js`), as described
[here](http://www.glfw.org/docs/latest/intro.html#intro_version_string), the
__GPU model and driver version__ (e.g. `GeForce GTX660 with 352.79`), and the
__output of `glfwinfo`__ (with switches matching any hints you set in your

15
CMakeLists.txt
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@ -262,21 +262,6 @@ if (_GLFW_X11)
list(APPEND glfw_LIBRARIES "${X11_Xinerama_LIB}")
list(APPEND glfw_PKG_DEPS "xinerama")
# Check for Xf86VidMode (fallback gamma control)
if (X11_xf86vmode_FOUND)
list(APPEND glfw_INCLUDE_DIRS "${X11_xf86vmode_INCLUDE_PATH}")
list(APPEND glfw_PKG_DEPS "xxf86vm")
if (X11_Xxf86vm_LIB)
list(APPEND glfw_LIBRARIES "${X11_Xxf86vm_LIB}")
else()
# Backwards compatibility (see CMake bug 0006976)
list(APPEND glfw_LIBRARIES Xxf86vm)
endif()
set(_GLFW_HAS_XF86VM TRUE)
endif()
# Check for Xkb (X keyboard extension)
if (NOT X11_Xkb_FOUND)
message(FATAL_ERROR "The X keyboard extension headers were not found")

1
README.md
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@ -118,6 +118,7 @@ information on what to include when reporting a bug.
- Bugfix: `glfwGetInstanceProcAddress` returned `NULL` for
`vkGetInstanceProcAddr` when `_GLFW_VULKAN_STATIC` was enabled
- [Win32] Bugfix: Undecorated windows could not be iconified by the user (#861)
- [X11] Replaced `_GLFW_HAS_XF86VM` compile-time option with dynamic loading
- [Cocoa] Added support for Vulkan window surface creation via MoltenVK (#870)
- [Cocoa] Bugfix: Disabling window aspect ratio would assert (#852)
- [Cocoa] Bugfix: Window creation failed to set first responder (#876,#883)

6
docs/compile.dox
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@ -281,12 +281,6 @@ For the EGL context creation API, the following options are available:
- @b _GLFW_USE_EGLPLATFORM_H to use `EGL/eglplatform.h` for native handle
definitions (fallback)
If you are using the X11 window creation API, support for the following X11
extensions can be enabled:
- @b _GLFW_HAS_XF86VM to use Xxf86vm as a fallback when RandR gamma is broken
(recommended)
If you are using the Cocoa window creation API, the following options are
available:

2
docs/internal.dox
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@ -111,6 +111,6 @@ which is generated from the `glfw_config.h.in` file by CMake.
Configuration macros the same style as tokens in the public interface, except
with a leading underscore.
Examples: `_GLFW_HAS_XF86VM`
Examples: `_GLFW_USE_HYBRID_HPG`
*/

3
src/glfw_config.h.in
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@ -55,9 +55,6 @@
// Define this to 1 to force use of high-performance GPU on hybrid systems
#cmakedefine _GLFW_USE_HYBRID_HPG
// Define this to 1 if the Xxf86vm X11 extension is available
#cmakedefine _GLFW_HAS_XF86VM
// Define this to 1 if glfwInit should change the current directory
#cmakedefine _GLFW_USE_CHDIR
// Define this to 1 if glfwCreateWindow should populate the menu bar

27
src/x11_init.c
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@ -462,13 +462,23 @@ static void detectEWMH(void)
//
static GLFWbool initExtensions(void)
{
#if defined(_GLFW_HAS_XF86VM)
// Check for XF86VidMode extension
_glfw.x11.vidmode.available =
XF86VidModeQueryExtension(_glfw.x11.display,
&_glfw.x11.vidmode.eventBase,
&_glfw.x11.vidmode.errorBase);
#endif /*_GLFW_HAS_XF86VM*/
_glfw.x11.vidmode.handle = dlopen("libXxf86vm.so", RTLD_LAZY | RTLD_GLOBAL);
if (_glfw.x11.vidmode.handle)
{
_glfw.x11.vidmode.QueryExtension = (PFN_XF86VidModeQueryExtension)
dlsym(_glfw.x11.vidmode.handle, "XF86VidModeQueryExtension");
_glfw.x11.vidmode.GetGammaRamp = (PFN_XF86VidModeGetGammaRamp)
dlsym(_glfw.x11.vidmode.handle, "XF86VidModeGetGammaRamp");
_glfw.x11.vidmode.SetGammaRamp = (PFN_XF86VidModeSetGammaRamp)
dlsym(_glfw.x11.vidmode.handle, "XF86VidModeSetGammaRamp");
_glfw.x11.vidmode.GetGammaRampSize = (PFN_XF86VidModeGetGammaRampSize)
dlsym(_glfw.x11.vidmode.handle, "XF86VidModeGetGammaRampSize");
_glfw.x11.vidmode.available =
XF86VidModeQueryExtension(_glfw.x11.display,
&_glfw.x11.vidmode.eventBase,
&_glfw.x11.vidmode.errorBase);
}
// Check for RandR extension
if (XRRQueryExtension(_glfw.x11.display,
@ -848,9 +858,6 @@ const char* _glfwPlatformGetVersionString(void)
#if defined(__linux__)
" /dev/js"
#endif
#if defined(_GLFW_HAS_XF86VM)
" Xf86vm"
#endif
#if defined(_GLFW_BUILD_DLL)
" shared"
#endif

4
src/x11_monitor.c
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@ -429,7 +429,6 @@ void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
XRRFreeGamma(gamma);
}
#if defined(_GLFW_HAS_XF86VM)
else if (_glfw.x11.vidmode.available)
{
int size;
@ -441,7 +440,6 @@ void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
_glfw.x11.screen,
ramp->size, ramp->red, ramp->green, ramp->blue);
}
#endif /*_GLFW_HAS_XF86VM*/
}
void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
@ -457,7 +455,6 @@ void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
XRRSetCrtcGamma(_glfw.x11.display, monitor->x11.crtc, gamma);
XRRFreeGamma(gamma);
}
#if defined(_GLFW_HAS_XF86VM)
else if (_glfw.x11.vidmode.available)
{
XF86VidModeSetGammaRamp(_glfw.x11.display,
@ -467,7 +464,6 @@ void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
(unsigned short*) ramp->green,
(unsigned short*) ramp->blue);
}
#endif /*_GLFW_HAS_XF86VM*/
}

21
src/x11_platform.h
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@ -47,16 +47,20 @@
// The Xinerama extension provides legacy monitor indices
#include <X11/extensions/Xinerama.h>
#if defined(_GLFW_HAS_XF86VM)
// The Xf86VidMode extension provides fallback gamma control
#include <X11/extensions/xf86vmode.h>
#endif
typedef XID xcb_window_t;
typedef XID xcb_visualid_t;
typedef struct xcb_connection_t xcb_connection_t;
typedef xcb_connection_t* (* PFN_XGetXCBConnection)(Display*);
typedef Bool (* PFN_XF86VidModeQueryExtension)(Display*,int*,int*);
typedef Bool (* PFN_XF86VidModeGetGammaRamp)(Display*,int,int,unsigned short*,unsigned short*,unsigned short*);
typedef Bool (* PFN_XF86VidModeSetGammaRamp)(Display*,int,int,unsigned short*,unsigned short*,unsigned short*);
typedef Bool (* PFN_XF86VidModeGetGammaRampSize)(Display*,int,int*);
#define XF86VidModeQueryExtension _glfw.x11.vidmode.QueryExtension
#define XF86VidModeGetGammaRamp _glfw.x11.vidmode.GetGammaRamp
#define XF86VidModeSetGammaRamp _glfw.x11.vidmode.SetGammaRamp
#define XF86VidModeGetGammaRampSize _glfw.x11.vidmode.GetGammaRampSize
typedef VkFlags VkXlibSurfaceCreateFlagsKHR;
typedef VkFlags VkXcbSurfaceCreateFlagsKHR;
@ -250,13 +254,16 @@ typedef struct _GLFWlibraryX11
PFN_XGetXCBConnection XGetXCBConnection;
} x11xcb;
#if defined(_GLFW_HAS_XF86VM)
struct {
GLFWbool available;
void* handle;
int eventBase;
int errorBase;
PFN_XF86VidModeQueryExtension QueryExtension;
PFN_XF86VidModeGetGammaRamp GetGammaRamp;
PFN_XF86VidModeSetGammaRamp SetGammaRamp;
PFN_XF86VidModeGetGammaRampSize GetGammaRampSize;
} vidmode;
#endif /*_GLFW_HAS_XF86VM*/
} _GLFWlibraryX11;