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
+78 -16
View File
@@ -44,13 +44,6 @@ typedef struct VkWaylandSurfaceCreateInfoKHR
typedef VkResult (APIENTRY *PFN_vkCreateWaylandSurfaceKHR)(VkInstance,const VkWaylandSurfaceCreateInfoKHR*,const VkAllocationCallbacks*,VkSurfaceKHR*);
typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR)(VkPhysicalDevice,uint32_t,struct wl_display*);
#include "posix_thread.h"
#include "posix_time.h"
#ifdef __linux__
#include "linux_joystick.h"
#else
#include "null_joystick.h"
#endif
#include "xkb_unicode.h"
typedef int (* PFN_wl_display_flush)(struct wl_display *display);
@@ -75,7 +68,6 @@ typedef struct wl_proxy* (* PFN_wl_proxy_marshal_flags)(struct wl_proxy*,uint32_
#define wl_display_cancel_read _glfw.wl.client.display_cancel_read
#define wl_display_dispatch_pending _glfw.wl.client.display_dispatch_pending
#define wl_display_read_events _glfw.wl.client.display_read_events
#define wl_display_connect _glfw.wl.client.display_connect
#define wl_display_disconnect _glfw.wl.client.display_disconnect
#define wl_display_roundtrip _glfw.wl.client.display_roundtrip
#define wl_display_get_fd _glfw.wl.client.display_get_fd
@@ -132,13 +124,10 @@ struct wl_shm;
#define xdg_toplevel_interface _glfw_xdg_toplevel_interface
#define xdg_wm_base_interface _glfw_xdg_wm_base_interface
#define _GLFW_PLATFORM_WINDOW_STATE _GLFWwindowWayland wl
#define _GLFW_PLATFORM_LIBRARY_WINDOW_STATE _GLFWlibraryWayland wl
#define _GLFW_PLATFORM_MONITOR_STATE _GLFWmonitorWayland wl
#define _GLFW_PLATFORM_CURSOR_STATE _GLFWcursorWayland wl
#define _GLFW_PLATFORM_CONTEXT_STATE struct { int dummyContext; }
#define _GLFW_PLATFORM_LIBRARY_CONTEXT_STATE struct { int dummyLibraryContext; }
#define GLFW_WAYLAND_WINDOW_STATE _GLFWwindowWayland wl;
#define GLFW_WAYLAND_LIBRARY_WINDOW_STATE _GLFWlibraryWayland wl;
#define GLFW_WAYLAND_MONITOR_STATE _GLFWmonitorWayland wl;
#define GLFW_WAYLAND_CURSOR_STATE _GLFWcursorWayland wl;
struct wl_cursor_image {
uint32_t width;
@@ -373,7 +362,6 @@ typedef struct _GLFWlibraryWayland
PFN_wl_display_cancel_read display_cancel_read;
PFN_wl_display_dispatch_pending display_dispatch_pending;
PFN_wl_display_read_events display_read_events;
PFN_wl_display_connect display_connect;
PFN_wl_display_disconnect display_disconnect;
PFN_wl_display_roundtrip display_roundtrip;
PFN_wl_display_get_fd display_get_fd;
@@ -432,6 +420,80 @@ typedef struct _GLFWcursorWayland
int currentImage;
} _GLFWcursorWayland;
GLFWbool _glfwConnectWayland(int platformID, _GLFWplatform* platform);
int _glfwInitWayland(void);
void _glfwTerminateWayland(void);
int _glfwCreateWindowWayland(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
void _glfwDestroyWindowWayland(_GLFWwindow* window);
void _glfwSetWindowTitleWayland(_GLFWwindow* window, const char* title);
void _glfwSetWindowIconWayland(_GLFWwindow* window, int count, const GLFWimage* images);
void _glfwGetWindowPosWayland(_GLFWwindow* window, int* xpos, int* ypos);
void _glfwSetWindowPosWayland(_GLFWwindow* window, int xpos, int ypos);
void _glfwGetWindowSizeWayland(_GLFWwindow* window, int* width, int* height);
void _glfwSetWindowSizeWayland(_GLFWwindow* window, int width, int height);
void _glfwSetWindowSizeLimitsWayland(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
void _glfwSetWindowAspectRatioWayland(_GLFWwindow* window, int numer, int denom);
void _glfwGetFramebufferSizeWayland(_GLFWwindow* window, int* width, int* height);
void _glfwGetWindowFrameSizeWayland(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
void _glfwGetWindowContentScaleWayland(_GLFWwindow* window, float* xscale, float* yscale);
void _glfwIconifyWindowWayland(_GLFWwindow* window);
void _glfwRestoreWindowWayland(_GLFWwindow* window);
void _glfwMaximizeWindowWayland(_GLFWwindow* window);
void _glfwShowWindowWayland(_GLFWwindow* window);
void _glfwHideWindowWayland(_GLFWwindow* window);
void _glfwRequestWindowAttentionWayland(_GLFWwindow* window);
void _glfwFocusWindowWayland(_GLFWwindow* window);
void _glfwSetWindowMonitorWayland(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
int _glfwWindowFocusedWayland(_GLFWwindow* window);
int _glfwWindowIconifiedWayland(_GLFWwindow* window);
int _glfwWindowVisibleWayland(_GLFWwindow* window);
int _glfwWindowMaximizedWayland(_GLFWwindow* window);
int _glfwWindowHoveredWayland(_GLFWwindow* window);
int _glfwFramebufferTransparentWayland(_GLFWwindow* window);
void _glfwSetWindowResizableWayland(_GLFWwindow* window, GLFWbool enabled);
void _glfwSetWindowDecoratedWayland(_GLFWwindow* window, GLFWbool enabled);
void _glfwSetWindowFloatingWayland(_GLFWwindow* window, GLFWbool enabled);
float _glfwGetWindowOpacityWayland(_GLFWwindow* window);
void _glfwSetWindowOpacityWayland(_GLFWwindow* window, float opacity);
void _glfwSetWindowMousePassthroughWayland(_GLFWwindow* window, GLFWbool enabled);
void _glfwSetRawMouseMotionWayland(_GLFWwindow *window, GLFWbool enabled);
GLFWbool _glfwRawMouseMotionSupportedWayland(void);
void _glfwPollEventsWayland(void);
void _glfwWaitEventsWayland(void);
void _glfwWaitEventsTimeoutWayland(double timeout);
void _glfwPostEmptyEventWayland(void);
void _glfwGetCursorPosWayland(_GLFWwindow* window, double* xpos, double* ypos);
void _glfwSetCursorPosWayland(_GLFWwindow* window, double xpos, double ypos);
void _glfwSetCursorModeWayland(_GLFWwindow* window, int mode);
const char* _glfwGetScancodeNameWayland(int scancode);
int _glfwGetKeyScancodeWayland(int key);
int _glfwCreateCursorWayland(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot);
int _glfwCreateStandardCursorWayland(_GLFWcursor* cursor, int shape);
void _glfwDestroyCursorWayland(_GLFWcursor* cursor);
void _glfwSetCursorWayland(_GLFWwindow* window, _GLFWcursor* cursor);
void _glfwSetClipboardStringWayland(const char* string);
const char* _glfwGetClipboardStringWayland(void);
EGLenum _glfwGetEGLPlatformWayland(EGLint** attribs);
EGLNativeDisplayType _glfwGetEGLNativeDisplayWayland(void);
EGLNativeWindowType _glfwGetEGLNativeWindowWayland(_GLFWwindow* window);
void _glfwGetRequiredInstanceExtensionsWayland(char** extensions);
int _glfwGetPhysicalDevicePresentationSupportWayland(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
VkResult _glfwCreateWindowSurfaceWayland(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
void _glfwFreeMonitorWayland(_GLFWmonitor* monitor);
void _glfwGetMonitorPosWayland(_GLFWmonitor* monitor, int* xpos, int* ypos);
void _glfwGetMonitorContentScaleWayland(_GLFWmonitor* monitor, float* xscale, float* yscale);
void _glfwGetMonitorWorkareaWayland(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
GLFWvidmode* _glfwGetVideoModesWayland(_GLFWmonitor* monitor, int* count);
void _glfwGetVideoModeWayland(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetGammaRampWayland(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
void _glfwSetGammaRampWayland(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
void _glfwAddOutputWayland(uint32_t name, uint32_t version);