Wayland: Document when behaviour differs

This should describe all of the Wayland-specific points, mostly in
three categories:
- Missing GLFW features, for example window frame, screensaver
  inhibition, clipboard or file drop.
- Missing protocols, like setting gamma on a monitor or specifying a
  window icon.
- Fundamental incompatibilities with Wayland concepts, like trying to
  handle global positioning of a window in a 2D space, trying to bring
  a window to front, or trying to change the monitor’s mode.

Closes #881.
This commit is contained in:
linkmauve 2016-10-16 15:52:39 +01:00 committed by Camilla Berglund
parent 046d281abc
commit bc8b0480e9
2 changed files with 80 additions and 4 deletions

View File

@ -202,6 +202,7 @@ ALIASES = "thread_safety=@par Thread safety\n" \
"errors=@par Errors\n" \
"glfw3=@par\n__GLFW 3:__" \
"x11=__X11:__" \
"wayland=__Wayland:__" \
"win32=__Windows:__" \
"osx=__OS X:__"

View File

@ -1621,6 +1621,9 @@ GLFWAPI const GLFWvidmode* glfwGetVideoMode(GLFWmonitor* monitor);
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
* GLFW_INVALID_VALUE and @ref GLFW_PLATFORM_ERROR.
*
* @remark @wayland Gamma handling is currently unavailable, this function will
* always emit @ref GLFW_PLATFORM_ERROR.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref monitor_gamma
@ -1642,6 +1645,9 @@ GLFWAPI void glfwSetGamma(GLFWmonitor* monitor, float gamma);
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_ERROR.
*
* @remark @wayland Gamma handling is currently unavailable, this function will
* always return `NULL` and emit @ref GLFW_PLATFORM_ERROR.
*
* @pointer_lifetime The returned structure and its arrays are allocated and
* freed by GLFW. You should not free them yourself. They are valid until the
* specified monitor is disconnected, this function is called again for that
@ -1674,6 +1680,9 @@ GLFWAPI const GLFWgammaramp* glfwGetGammaRamp(GLFWmonitor* monitor);
*
* @remark @win32 The gamma ramp size must be 256.
*
* @remark @wayland Gamma handling is currently unavailable, this function will
* always emit @ref GLFW_PLATFORM_ERROR.
*
* @pointer_lifetime The specified gamma ramp is copied before this function
* returns.
*
@ -1841,6 +1850,20 @@ GLFWAPI void glfwWindowHint(int hint, int value);
* query the final size, position or other attributes directly after window
* creation.
*
* @remark @wayland The window frame is currently unimplemented, as if
* `GLFW_DECORATED` was always set to `GLFW_FALSE`. A compositor can still
* emit close, resize or maximize events, using for example a keybind
* mechanism.
*
* @remark @wayland A full screen window will not attempt to change the mode,
* no matter what the requested size or refresh rate.
*
* @remark @wayland The wl_shell protocol does not support window
* icons, the window will inherit the one defined in the application's
* desktop file, so this function emits @ref GLFW_PLATFORM_ERROR.
*
* @remark @wayland Screensaver inhibition is currently unimplemented.
*
* @reentrancy This function must not be called from a callback.
*
* @thread_safety This function must only be called from the main thread.
@ -1979,6 +2002,10 @@ GLFWAPI void glfwSetWindowTitle(GLFWwindow* window, const char* title);
* [Bundle Programming Guide](https://developer.apple.com/library/mac/documentation/CoreFoundation/Conceptual/CFBundles/)
* in the Mac Developer Library.
*
* @remark @wayland The wl_shell protocol does not support icons, the window
* will inherit the one defined in the application's desktop file, so this
* function emits @ref GLFW_PLATFORM_ERROR.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_icon
@ -2006,6 +2033,10 @@ GLFWAPI void glfwSetWindowIcon(GLFWwindow* window, int count, const GLFWimage* i
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_ERROR.
*
* @remark @wayland There is no way for an application to retrieve the global
* position of its windows, this function will always emit @ref
* GLFW_PLATFORM_ERROR.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_pos
@ -2036,6 +2067,10 @@ GLFWAPI void glfwGetWindowPos(GLFWwindow* window, int* xpos, int* ypos);
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_ERROR.
*
* @remark @wayland There is no way for an application to set the global
* position of its windows, this function will always emit @ref
* GLFW_PLATFORM_ERROR.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_pos
@ -2107,6 +2142,9 @@ GLFWAPI void glfwGetWindowSize(GLFWwindow* window, int* width, int* height);
* @remark If you set size limits and an aspect ratio that conflict, the
* results are undefined.
*
* @remark @wayland The size limits will not be applied until the window is
* actually resized, either by the user or by the compositor.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_sizelimits
@ -2147,6 +2185,9 @@ GLFWAPI void glfwSetWindowSizeLimits(GLFWwindow* window, int minwidth, int minhe
* @remark If you set size limits and an aspect ratio that conflict, the
* results are undefined.
*
* @remark @wayland The aspect ratio will not be applied until the window is
* actually resized, either by the user or by the compositor.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_sizelimits
@ -2183,6 +2224,9 @@ GLFWAPI void glfwSetWindowAspectRatio(GLFWwindow* window, int numer, int denom);
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_ERROR.
*
* @remark @wayland A full screen window will not attempt to change the mode,
* no matter what the requested size.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_size
@ -2252,6 +2296,10 @@ GLFWAPI void glfwGetFramebufferSize(GLFWwindow* window, int* width, int* height)
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_ERROR.
*
* @remark @wayland The window frame is currently unimplemented, as if
* `GLFW_DECORATED` was always set to `GLFW_FALSE`, so the returned values
* will always be zero.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_size
@ -2276,6 +2324,9 @@ GLFWAPI void glfwGetWindowFrameSize(GLFWwindow* window, int* left, int* top, int
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_ERROR.
*
* @remark @wayland There is no concept of iconification in wl_shell, this
* function will always emit @ref GLFW_PLATFORM_ERROR.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_iconify
@ -2403,6 +2454,9 @@ GLFWAPI void glfwHideWindow(GLFWwindow* window);
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_ERROR.
*
* @remark @wayland It is not possible for an application to bring its windows
* to front, this function will always emit @ref GLFW_PLATFORM_ERROR.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_focus
@ -2453,7 +2507,7 @@ GLFWAPI GLFWmonitor* glfwGetWindowMonitor(GLFWwindow* window);
*
* When a window transitions from full screen to windowed mode, this function
* restores any previous window settings such as whether it is decorated,
* floating, resizable, has size or aspect ratio limits, etc..
* floating, resizable, has size or aspect ratio limits, etc.
*
* @param[in] window The window whose monitor, size or video mode to set.
* @param[in] monitor The desired monitor, or `NULL` to set windowed mode.
@ -2471,6 +2525,12 @@ GLFWAPI GLFWmonitor* glfwGetWindowMonitor(GLFWwindow* window);
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_ERROR.
*
* @remark @wayland The desired window position is ignored, as there is no way
* for an application to set this property.
*
* @remark @wayland Setting the window to full screen will not attempt to
* change the mode, no matter what the requested size or refresh rate.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_monitor
@ -2575,6 +2635,9 @@ GLFWAPI void* glfwGetWindowUserPointer(GLFWwindow* window);
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
*
* @remark @wayland This callback will never be called, as there is no way for
* an application to know its global position.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_pos
@ -2649,9 +2712,9 @@ GLFWAPI GLFWwindowclosefun glfwSetWindowCloseCallback(GLFWwindow* window, GLFWwi
* called when the client area of the window needs to be redrawn, for example
* if the window has been exposed after having been covered by another window.
*
* On compositing window systems such as Aero, Compiz or Aqua, where the window
* contents are saved off-screen, this callback may be called only very
* infrequently or never at all.
* On compositing window systems such as Aero, Compiz, Aqua or Wayland, where
* the window contents are saved off-screen, this callback may be called only
* very infrequently or never at all.
*
* @param[in] window The window whose callback to set.
* @param[in] cbfun The new callback, or `NULL` to remove the currently set
@ -2713,6 +2776,9 @@ GLFWAPI GLFWwindowfocusfun glfwSetWindowFocusCallback(GLFWwindow* window, GLFWwi
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
*
* @remark @wayland The wl_shell protocol has no concept of iconification,
* this callback will never be called.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_iconify
@ -3205,6 +3271,9 @@ GLFWAPI void glfwGetCursorPos(GLFWwindow* window, double* xpos, double* ypos);
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_ERROR.
*
* @remark @wayland This function will only work when the cursor mode is
* `GLFW_CURSOR_DISABLED`, otherwise it will do nothing.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref cursor_pos
@ -3570,6 +3639,8 @@ GLFWAPI GLFWscrollfun glfwSetScrollCallback(GLFWwindow* window, GLFWscrollfun cb
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
*
* @remark @wayland File drop is currently unimplemented.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref path_drop
@ -3735,6 +3806,8 @@ GLFWAPI GLFWjoystickfun glfwSetJoystickCallback(GLFWjoystickfun cbfun);
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_ERROR.
*
* @remark @wayland Clipboard is currently unimplemented.
*
* @pointer_lifetime The specified string is copied before this function
* returns.
*
@ -3763,6 +3836,8 @@ GLFWAPI void glfwSetClipboardString(GLFWwindow* window, const char* string);
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_ERROR.
*
* @remark @wayland Clipboard is currently unimplemented.
*
* @pointer_lifetime The returned string is allocated and freed by GLFW. You
* should not free it yourself. It is valid until the next call to @ref
* glfwGetClipboardString or @ref glfwSetClipboardString, or until the library