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Added blank cursor creation error checking on X11.

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This commit is contained in:
siavash 2013-07-09 21:08:21 +04:30
parent 763ec6cbcb
commit 3b4eb2f0a0
3 changed files with 30 additions and 12 deletions
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34
src/glx_context.c
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@ -45,14 +45,32 @@ void (*glXGetProcAddressEXT(const GLubyte* procName))();
#endif #endif
// Error handler used when creating a context // Error handler used when creating a context and blank cursor
// //
static int errorHandler(Display *display, XErrorEvent* event) static int errorHandler(Display *display, XErrorEvent* event)
{ {
_glfw.glx.errorCode = event->error_code; char buffer[8192];
XGetErrorText(display,
event->error_code,
buffer, sizeof(buffer));
_glfwInputError(GLFW_PLATFORM_ERROR, "X11 failure: %s", buffer);
return 0; return 0;
} }
void _glfwGrabXErrorHandler(void)
{
XSetErrorHandler(errorHandler);
}
void _glfwReleaseXErrorHandler(void)
{
// Syncing to make sure all commands are processed
XSync(_glfw.x11.display, False);
XSetErrorHandler(NULL);
}
// Returns the specified attribute of the specified GLXFBConfig // Returns the specified attribute of the specified GLXFBConfig
// NOTE: Do not call this unless we have found GLX 1.3+ or GLX_SGIX_fbconfig // NOTE: Do not call this unless we have found GLX 1.3+ or GLX_SGIX_fbconfig
// //
@ -428,7 +446,7 @@ int _glfwCreateContext(_GLFWwindow* window,
} }
_glfw.glx.errorCode = Success; _glfw.glx.errorCode = Success;
XSetErrorHandler(errorHandler); _glfwGrabXErrorHandler();
if (_glfw.glx.ARB_create_context) if (_glfw.glx.ARB_create_context)
{ {
@ -511,18 +529,12 @@ int _glfwCreateContext(_GLFWwindow* window,
else else
window->glx.context = createLegacyContext(window, native, share); window->glx.context = createLegacyContext(window, native, share);
XSetErrorHandler(NULL); _glfwReleaseXErrorHandler();
if (window->glx.context == NULL) if (window->glx.context == NULL)
{ {
char buffer[8192];
XGetErrorText(_glfw.x11.display,
_glfw.glx.errorCode,
buffer, sizeof(buffer));
_glfwInputError(GLFW_PLATFORM_ERROR, _glfwInputError(GLFW_PLATFORM_ERROR,
"GLX: Failed to create context: %s", "GLX: Failed to create context.");
buffer);
return GL_FALSE; return GL_FALSE;
} }

4
src/x11_init.c
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@ -553,7 +553,7 @@ static Cursor createNULLCursor(void)
XColor col; XColor col;
Cursor cursor; Cursor cursor;
// TODO: Add error checks _glfwGrabXErrorHandler();
cursormask = XCreatePixmap(_glfw.x11.display, _glfw.x11.root, 1, 1, 1); cursormask = XCreatePixmap(_glfw.x11.display, _glfw.x11.root, 1, 1, 1);
xgc.function = GXclear; xgc.function = GXclear;
@ -568,6 +568,8 @@ static Cursor createNULLCursor(void)
XFreePixmap(_glfw.x11.display, cursormask); XFreePixmap(_glfw.x11.display, cursormask);
XFreeGC(_glfw.x11.display, gc); XFreeGC(_glfw.x11.display, gc);
_glfwReleaseXErrorHandler();
return cursor; return cursor;
} }

4
src/x11_platform.h
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@ -256,4 +256,8 @@ unsigned long _glfwGetWindowProperty(Window window,
Atom type, Atom type,
unsigned char** value); unsigned char** value);
// X11 error handler
void _glfwGrabXErrorHandler(void);
void _glfwReleaseXErrorHandler(void);
#endif // _x11_platform_h_ #endif // _x11_platform_h_