Add runtime platform selection

This adds compile-time support for multiple platforms and runtime
detection of them.  Window system related platform functions are now
called from shared code via the function pointer struct _GLFWplatform.

The timer, thread and module loading platform functions are still called
directly by name and the implementation chosen at link-time.  These
functions are the same for any backend on a given OS, including the Null
backend.

The platforms are now enabled via CMake dependent options following the
GLFW_BUILD_<platform> pattern instead of a mix of automagic and ad-hoc
option names.  There is no longer any option for the Null backend as it
is now always enabled.

Much of the struct stitching work in platform.h was based on an earlier
experimental branch for runtime platform selection by @ronchaine.

Every platform function related to windows, contexts, monitors, input,
event processing and Vulkan have been renamed so that multiple sets of
them can exist without colliding.  Calls to these are now routed through
the _glfw.platform struct member.  These changes makes up most of this
commit.

For Wayland and X11 the client library loading and display creation is
used to detect a running compositor/server.  The XDG_SESSION_TYPE
environment variable is ignored for now, as X11 is still by far the more
complete implementation.

Closes #1655
Closes #1958
This commit is contained in:
Camilla Löwy
2021-07-13 21:50:09 +02:00
parent ff9d9515f6
commit 56a4cb0a3a
56 changed files with 2698 additions and 1235 deletions

View File

@@ -243,7 +243,6 @@ typedef void (* PFN_Xutf8SetWMProperties)(Display*,Window,const char*,const char
#define XGetWindowProperty _glfw.x11.xlib.GetWindowProperty
#define XGrabPointer _glfw.x11.xlib.GrabPointer
#define XIconifyWindow _glfw.x11.xlib.IconifyWindow
#define XInitThreads _glfw.x11.xlib.InitThreads
#define XInternAtom _glfw.x11.xlib.InternAtom
#define XLookupString _glfw.x11.xlib.LookupString
#define XMapRaised _glfw.x11.xlib.MapRaised
@@ -251,7 +250,6 @@ typedef void (* PFN_Xutf8SetWMProperties)(Display*,Window,const char*,const char
#define XMoveResizeWindow _glfw.x11.xlib.MoveResizeWindow
#define XMoveWindow _glfw.x11.xlib.MoveWindow
#define XNextEvent _glfw.x11.xlib.NextEvent
#define XOpenDisplay _glfw.x11.xlib.OpenDisplay
#define XOpenIM _glfw.x11.xlib.OpenIM
#define XPeekEvent _glfw.x11.xlib.PeekEvent
#define XPending _glfw.x11.xlib.Pending
@@ -296,7 +294,6 @@ typedef void (* PFN_Xutf8SetWMProperties)(Display*,Window,const char*,const char
#define XrmDestroyDatabase _glfw.x11.xrm.DestroyDatabase
#define XrmGetResource _glfw.x11.xrm.GetResource
#define XrmGetStringDatabase _glfw.x11.xrm.GetStringDatabase
#define XrmInitialize _glfw.x11.xrm.Initialize
#define XrmUniqueQuark _glfw.x11.xrm.UniqueQuark
#define XUnregisterIMInstantiateCallback _glfw.x11.xlib.UnregisterIMInstantiateCallback
#define Xutf8LookupString _glfw.x11.xlib.utf8LookupString
@@ -455,22 +452,15 @@ typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceXlibPresentationSupportKHR)(V
typedef VkResult (APIENTRY *PFN_vkCreateXcbSurfaceKHR)(VkInstance,const VkXcbSurfaceCreateInfoKHR*,const VkAllocationCallbacks*,VkSurfaceKHR*);
typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR)(VkPhysicalDevice,uint32_t,xcb_connection_t*,xcb_visualid_t);
#include "posix_thread.h"
#include "posix_time.h"
#include "xkb_unicode.h"
#if defined(__linux__)
#include "linux_joystick.h"
#else
#include "null_joystick.h"
#endif
#define _GLFW_PLATFORM_WINDOW_STATE _GLFWwindowX11 x11
#define _GLFW_PLATFORM_LIBRARY_WINDOW_STATE _GLFWlibraryX11 x11
#define _GLFW_PLATFORM_MONITOR_STATE _GLFWmonitorX11 x11
#define _GLFW_PLATFORM_CURSOR_STATE _GLFWcursorX11 x11
#define GLFW_X11_WINDOW_STATE _GLFWwindowX11 x11;
#define GLFW_X11_LIBRARY_WINDOW_STATE _GLFWlibraryX11 x11;
#define GLFW_X11_MONITOR_STATE _GLFWmonitorX11 x11;
#define GLFW_X11_CURSOR_STATE _GLFWcursorX11 x11;
#define _GLFW_PLATFORM_CONTEXT_STATE _GLFWcontextGLX glx
#define _GLFW_PLATFORM_LIBRARY_CONTEXT_STATE _GLFWlibraryGLX glx
#define GLFW_GLX_CONTEXT_STATE _GLFWcontextGLX glx;
#define GLFW_GLX_LIBRARY_CONTEXT_STATE _GLFWlibraryGLX glx;
// GLX-specific per-context data
@@ -696,7 +686,6 @@ typedef struct _GLFWlibraryX11
PFN_XGetWindowProperty GetWindowProperty;
PFN_XGrabPointer GrabPointer;
PFN_XIconifyWindow IconifyWindow;
PFN_XInitThreads InitThreads;
PFN_XInternAtom InternAtom;
PFN_XLookupString LookupString;
PFN_XMapRaised MapRaised;
@@ -704,7 +693,6 @@ typedef struct _GLFWlibraryX11
PFN_XMoveResizeWindow MoveResizeWindow;
PFN_XMoveWindow MoveWindow;
PFN_XNextEvent NextEvent;
PFN_XOpenDisplay OpenDisplay;
PFN_XOpenIM OpenIM;
PFN_XPeekEvent PeekEvent;
PFN_XPending Pending;
@@ -746,7 +734,6 @@ typedef struct _GLFWlibraryX11
PFN_XrmDestroyDatabase DestroyDatabase;
PFN_XrmGetResource GetResource;
PFN_XrmGetStringDatabase GetStringDatabase;
PFN_XrmInitialize Initialize;
PFN_XrmUniqueQuark UniqueQuark;
} xrm;
@@ -907,11 +894,86 @@ typedef struct _GLFWcursorX11
} _GLFWcursorX11;
GLFWbool _glfwConnectX11(int platformID, _GLFWplatform* platform);
int _glfwInitX11(void);
void _glfwTerminateX11(void);
int _glfwCreateWindowX11(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
void _glfwDestroyWindowX11(_GLFWwindow* window);
void _glfwSetWindowTitleX11(_GLFWwindow* window, const char* title);
void _glfwSetWindowIconX11(_GLFWwindow* window, int count, const GLFWimage* images);
void _glfwGetWindowPosX11(_GLFWwindow* window, int* xpos, int* ypos);
void _glfwSetWindowPosX11(_GLFWwindow* window, int xpos, int ypos);
void _glfwGetWindowSizeX11(_GLFWwindow* window, int* width, int* height);
void _glfwSetWindowSizeX11(_GLFWwindow* window, int width, int height);
void _glfwSetWindowSizeLimitsX11(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
void _glfwSetWindowAspectRatioX11(_GLFWwindow* window, int numer, int denom);
void _glfwGetFramebufferSizeX11(_GLFWwindow* window, int* width, int* height);
void _glfwGetWindowFrameSizeX11(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
void _glfwGetWindowContentScaleX11(_GLFWwindow* window, float* xscale, float* yscale);
void _glfwIconifyWindowX11(_GLFWwindow* window);
void _glfwRestoreWindowX11(_GLFWwindow* window);
void _glfwMaximizeWindowX11(_GLFWwindow* window);
void _glfwShowWindowX11(_GLFWwindow* window);
void _glfwHideWindowX11(_GLFWwindow* window);
void _glfwRequestWindowAttentionX11(_GLFWwindow* window);
void _glfwFocusWindowX11(_GLFWwindow* window);
void _glfwSetWindowMonitorX11(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
int _glfwWindowFocusedX11(_GLFWwindow* window);
int _glfwWindowIconifiedX11(_GLFWwindow* window);
int _glfwWindowVisibleX11(_GLFWwindow* window);
int _glfwWindowMaximizedX11(_GLFWwindow* window);
int _glfwWindowHoveredX11(_GLFWwindow* window);
int _glfwFramebufferTransparentX11(_GLFWwindow* window);
void _glfwSetWindowResizableX11(_GLFWwindow* window, GLFWbool enabled);
void _glfwSetWindowDecoratedX11(_GLFWwindow* window, GLFWbool enabled);
void _glfwSetWindowFloatingX11(_GLFWwindow* window, GLFWbool enabled);
float _glfwGetWindowOpacityX11(_GLFWwindow* window);
void _glfwSetWindowOpacityX11(_GLFWwindow* window, float opacity);
void _glfwSetWindowMousePassthroughX11(_GLFWwindow* window, GLFWbool enabled);
void _glfwSetRawMouseMotionX11(_GLFWwindow *window, GLFWbool enabled);
GLFWbool _glfwRawMouseMotionSupportedX11(void);
void _glfwPollEventsX11(void);
void _glfwWaitEventsX11(void);
void _glfwWaitEventsTimeoutX11(double timeout);
void _glfwPostEmptyEventX11(void);
void _glfwGetCursorPosX11(_GLFWwindow* window, double* xpos, double* ypos);
void _glfwSetCursorPosX11(_GLFWwindow* window, double xpos, double ypos);
void _glfwSetCursorModeX11(_GLFWwindow* window, int mode);
const char* _glfwGetScancodeNameX11(int scancode);
int _glfwGetKeyScancodeX11(int key);
int _glfwCreateCursorX11(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot);
int _glfwCreateStandardCursorX11(_GLFWcursor* cursor, int shape);
void _glfwDestroyCursorX11(_GLFWcursor* cursor);
void _glfwSetCursorX11(_GLFWwindow* window, _GLFWcursor* cursor);
void _glfwSetClipboardStringX11(const char* string);
const char* _glfwGetClipboardStringX11(void);
EGLenum _glfwGetEGLPlatformX11(EGLint** attribs);
EGLNativeDisplayType _glfwGetEGLNativeDisplayX11(void);
EGLNativeWindowType _glfwGetEGLNativeWindowX11(_GLFWwindow* window);
void _glfwGetRequiredInstanceExtensionsX11(char** extensions);
int _glfwGetPhysicalDevicePresentationSupportX11(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
VkResult _glfwCreateWindowSurfaceX11(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
void _glfwFreeMonitorX11(_GLFWmonitor* monitor);
void _glfwGetMonitorPosX11(_GLFWmonitor* monitor, int* xpos, int* ypos);
void _glfwGetMonitorContentScaleX11(_GLFWmonitor* monitor, float* xscale, float* yscale);
void _glfwGetMonitorWorkareaX11(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
GLFWvidmode* _glfwGetVideoModesX11(_GLFWmonitor* monitor, int* count);
void _glfwGetVideoModeX11(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetGammaRampX11(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
void _glfwSetGammaRampX11(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
void _glfwPollMonitorsX11(void);
void _glfwSetVideoModeX11(_GLFWmonitor* monitor, const GLFWvidmode* desired);
void _glfwRestoreVideoModeX11(_GLFWmonitor* monitor);
Cursor _glfwCreateCursorX11(const GLFWimage* image, int xhot, int yhot);
Cursor _glfwCreateNativeCursorX11(const GLFWimage* image, int xhot, int yhot);
unsigned long _glfwGetWindowPropertyX11(Window window,
Atom property,