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X11: Add dynamic loading of libXcursor

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This commit is contained in:
Camilla Löwy 2017-08-16 20:54:14 +02:00
parent 3f852c321f
commit 99e72830ea
3 changed files with 35 additions and 3 deletions
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4
CMakeLists.txt
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@ -266,12 +266,10 @@ if (_GLFW_X11)
# Check for Xcursor
if (NOT X11_Xcursor_FOUND)
message(FATAL_ERROR "The Xcursor libraries and headers were not found")
message(FATAL_ERROR "The Xcursor headers were not found")
endif()
list(APPEND glfw_INCLUDE_DIR "${X11_Xcursor_INCLUDE_PATH}")
list(APPEND glfw_LIBRARIES "${X11_Xcursor_LIB}")
list(APPEND glfw_PKG_DEPS "xcursor")
endif()

20
src/x11_init.c
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@ -593,6 +593,17 @@ static GLFWbool initExtensions(void)
RROutputChangeNotifyMask);
}
_glfw.x11.xcursor.handle = dlopen("libXcursor.so.1", RTLD_LAZY | RTLD_GLOBAL);
if (_glfw.x11.xcursor.handle)
{
_glfw.x11.xcursor.ImageCreate = (PFN_XcursorImageCreate)
dlsym(_glfw.x11.xcursor.handle, "XcursorImageCreate");
_glfw.x11.xcursor.ImageDestroy = (PFN_XcursorImageDestroy)
dlsym(_glfw.x11.xcursor.handle, "XcursorImageDestroy");
_glfw.x11.xcursor.ImageLoadCursor = (PFN_XcursorImageLoadCursor)
dlsym(_glfw.x11.xcursor.handle, "XcursorImageLoadCursor");
}
_glfw.x11.xinerama.handle = dlopen("libXinerama.so.1", RTLD_LAZY | RTLD_GLOBAL);
if (_glfw.x11.xinerama.handle)
{
@ -782,6 +793,9 @@ Cursor _glfwCreateCursorX11(const GLFWimage* image, int xhot, int yhot)
int i;
Cursor cursor;
if (!_glfw.x11.xcursor.handle)
return None;
XcursorImage* native = XcursorImageCreate(image->width, image->height);
if (native == NULL)
return None;
@ -894,6 +908,12 @@ void _glfwPlatformTerminate(void)
_glfw.x11.randr.handle = NULL;
}
if (_glfw.x11.xcursor.handle)
{
dlclose(_glfw.x11.xcursor.handle);
_glfw.x11.xcursor.handle = NULL;
}
if (_glfw.x11.xinerama.handle)
{
dlclose(_glfw.x11.xinerama.handle);

14
src/x11_platform.h
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@ -82,6 +82,13 @@ typedef int (* PFN_XRRUpdateConfiguration)(XEvent*);
#define XRRSetCrtcGamma _glfw.x11.randr.SetCrtcGamma
#define XRRUpdateConfiguration _glfw.x11.randr.UpdateConfiguration
typedef XcursorImage* (* PFN_XcursorImageCreate)(int,int);
typedef void (* PFN_XcursorImageDestroy)(XcursorImage*);
typedef Cursor (* PFN_XcursorImageLoadCursor)(Display*,const XcursorImage*);
#define XcursorImageCreate _glfw.x11.xcursor.ImageCreate
#define XcursorImageDestroy _glfw.x11.xcursor.ImageDestroy
#define XcursorImageLoadCursor _glfw.x11.xcursor.ImageLoadCursor
typedef Bool (* PFN_XineramaIsActive)(Display*);
typedef Bool (* PFN_XineramaQueryExtension)(Display*,int*,int*);
typedef XineramaScreenInfo* (* PFN_XineramaQueryScreens)(Display*,int*);
@ -319,6 +326,13 @@ typedef struct _GLFWlibraryX11
Atom format;
} xdnd;
struct {
void* handle;
PFN_XcursorImageCreate ImageCreate;
PFN_XcursorImageDestroy ImageDestroy;
PFN_XcursorImageLoadCursor ImageLoadCursor;
} xcursor;
struct {
GLFWbool available;
void* handle;