| //======================================================================== |
| // GLFW 3.1 Wayland - www.glfw.org |
| //------------------------------------------------------------------------ |
| // Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com> |
| // |
| // This software is provided 'as-is', without any express or implied |
| // warranty. In no event will the authors be held liable for any damages |
| // arising from the use of this software. |
| // |
| // Permission is granted to anyone to use this software for any purpose, |
| // including commercial applications, and to alter it and redistribute it |
| // freely, subject to the following restrictions: |
| // |
| // 1. The origin of this software must not be misrepresented; you must not |
| // claim that you wrote the original software. If you use this software |
| // in a product, an acknowledgment in the product documentation would |
| // be appreciated but is not required. |
| // |
| // 2. Altered source versions must be plainly marked as such, and must not |
| // be misrepresented as being the original software. |
| // |
| // 3. This notice may not be removed or altered from any source |
| // distribution. |
| // |
| //======================================================================== |
| |
| #define _GNU_SOURCE |
| |
| #include "internal.h" |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include <string.h> |
| #include <fcntl.h> |
| #include <sys/mman.h> |
| #include <poll.h> |
| |
| #include <wayland-egl.h> |
| #include <wayland-cursor.h> |
| |
| |
| static void handlePing(void* data, |
| struct wl_shell_surface* shellSurface, |
| uint32_t serial) |
| { |
| wl_shell_surface_pong(shellSurface, serial); |
| } |
| |
| static void handleConfigure(void* data, |
| struct wl_shell_surface* shellSurface, |
| uint32_t edges, |
| int32_t width, |
| int32_t height) |
| { |
| _GLFWwindow* window = data; |
| _glfwInputFramebufferSize(window, width, height); |
| _glfwInputWindowSize(window, width, height); |
| _glfwPlatformSetWindowSize(window, width, height); |
| _glfwInputWindowDamage(window); |
| } |
| |
| static void handlePopupDone(void* data, |
| struct wl_shell_surface* shellSurface) |
| { |
| } |
| |
| static const struct wl_shell_surface_listener shellSurfaceListener = { |
| handlePing, |
| handleConfigure, |
| handlePopupDone |
| }; |
| |
| static GLboolean createSurface(_GLFWwindow* window, |
| const _GLFWwndconfig* wndconfig) |
| { |
| window->wl.surface = wl_compositor_create_surface(_glfw.wl.compositor); |
| if (!window->wl.surface) |
| return GL_FALSE; |
| |
| wl_surface_set_user_data(window->wl.surface, window); |
| |
| window->wl.native = wl_egl_window_create(window->wl.surface, |
| wndconfig->width, |
| wndconfig->height); |
| if (!window->wl.native) |
| return GL_FALSE; |
| |
| window->wl.shell_surface = wl_shell_get_shell_surface(_glfw.wl.shell, |
| window->wl.surface); |
| if (!window->wl.shell_surface) |
| return GL_FALSE; |
| |
| wl_shell_surface_add_listener(window->wl.shell_surface, |
| &shellSurfaceListener, |
| window); |
| |
| window->wl.width = wndconfig->width; |
| window->wl.height = wndconfig->height; |
| |
| return GL_TRUE; |
| } |
| |
| static int |
| createTmpfileCloexec(char* tmpname) |
| { |
| int fd; |
| |
| fd = mkostemp(tmpname, O_CLOEXEC); |
| if (fd >= 0) |
| unlink(tmpname); |
| |
| return fd; |
| } |
| |
| static void |
| handleEvents(int timeout) |
| { |
| struct wl_display* display = _glfw.wl.display; |
| struct pollfd fds[] = { |
| { wl_display_get_fd(display), POLLIN }, |
| }; |
| |
| while (wl_display_prepare_read(display) != 0) |
| wl_display_dispatch_pending(display); |
| |
| // If an error different from EAGAIN happens, we have likely been |
| // disconnected from the Wayland session, try to handle that the best we |
| // can. |
| if (wl_display_flush(display) < 0 && errno != EAGAIN) |
| { |
| _GLFWwindow* window = _glfw.windowListHead; |
| while (window) |
| { |
| _glfwInputWindowCloseRequest(window); |
| window = window->next; |
| } |
| wl_display_cancel_read(display); |
| return; |
| } |
| |
| if (poll(fds, 1, timeout) > 0) |
| { |
| wl_display_read_events(display); |
| wl_display_dispatch_pending(display); |
| } |
| else |
| { |
| wl_display_cancel_read(display); |
| } |
| } |
| |
| /* |
| * Create a new, unique, anonymous file of the given size, and |
| * return the file descriptor for it. The file descriptor is set |
| * CLOEXEC. The file is immediately suitable for mmap()'ing |
| * the given size at offset zero. |
| * |
| * The file should not have a permanent backing store like a disk, |
| * but may have if XDG_RUNTIME_DIR is not properly implemented in OS. |
| * |
| * The file name is deleted from the file system. |
| * |
| * The file is suitable for buffer sharing between processes by |
| * transmitting the file descriptor over Unix sockets using the |
| * SCM_RIGHTS methods. |
| * |
| * posix_fallocate() is used to guarantee that disk space is available |
| * for the file at the given size. If disk space is insufficent, errno |
| * is set to ENOSPC. If posix_fallocate() is not supported, program may |
| * receive SIGBUS on accessing mmap()'ed file contents instead. |
| */ |
| int |
| createAnonymousFile(off_t size) |
| { |
| static const char template[] = "/glfw-shared-XXXXXX"; |
| const char* path; |
| char* name; |
| int fd; |
| int ret; |
| |
| path = getenv("XDG_RUNTIME_DIR"); |
| if (!path) |
| { |
| errno = ENOENT; |
| return -1; |
| } |
| |
| name = calloc(strlen(path) + sizeof(template), 1); |
| strcpy(name, path); |
| strcat(name, template); |
| |
| fd = createTmpfileCloexec(name); |
| |
| free(name); |
| |
| if (fd < 0) |
| return -1; |
| ret = posix_fallocate(fd, 0, size); |
| if (ret != 0) |
| { |
| close(fd); |
| errno = ret; |
| return -1; |
| } |
| return fd; |
| } |
| |
| ////////////////////////////////////////////////////////////////////////// |
| ////// GLFW platform API ////// |
| ////////////////////////////////////////////////////////////////////////// |
| |
| int _glfwPlatformCreateWindow(_GLFWwindow* window, |
| const _GLFWwndconfig* wndconfig, |
| const _GLFWctxconfig* ctxconfig, |
| const _GLFWfbconfig* fbconfig) |
| { |
| if (!_glfwCreateContext(window, ctxconfig, fbconfig)) |
| return GL_FALSE; |
| |
| if (!createSurface(window, wndconfig)) |
| return GL_FALSE; |
| |
| if (wndconfig->monitor) |
| { |
| wl_shell_surface_set_fullscreen( |
| window->wl.shell_surface, |
| WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT, |
| 0, |
| wndconfig->monitor->wl.output); |
| } |
| else |
| { |
| wl_shell_surface_set_toplevel(window->wl.shell_surface); |
| } |
| |
| window->wl.currentCursor = NULL; |
| |
| return GL_TRUE; |
| } |
| |
| void _glfwPlatformDestroyWindow(_GLFWwindow* window) |
| { |
| if (window == _glfw.wl.pointerFocus) |
| { |
| _glfw.wl.pointerFocus = NULL; |
| _glfwInputCursorEnter(window, GL_FALSE); |
| } |
| if (window == _glfw.wl.keyboardFocus) |
| { |
| _glfw.wl.keyboardFocus = NULL; |
| _glfwInputWindowFocus(window, GL_FALSE); |
| } |
| |
| _glfwDestroyContext(window); |
| |
| if (window->wl.native) |
| wl_egl_window_destroy(window->wl.native); |
| |
| if (window->wl.shell_surface) |
| wl_shell_surface_destroy(window->wl.shell_surface); |
| |
| if (window->wl.surface) |
| wl_surface_destroy(window->wl.surface); |
| } |
| |
| void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title) |
| { |
| wl_shell_surface_set_title(window->wl.shell_surface, title); |
| } |
| |
| void _glfwPlatformGetWindowPos(_GLFWwindow* window, int* xpos, int* ypos) |
| { |
| // A Wayland client is not aware of its position, so just warn and leave it |
| // as (0, 0) |
| |
| _glfwInputError(GLFW_PLATFORM_ERROR, |
| "Wayland: Window position retrieval not supported"); |
| } |
| |
| void _glfwPlatformSetWindowPos(_GLFWwindow* window, int xpos, int ypos) |
| { |
| // A Wayland client can not set its position, so just warn |
| |
| _glfwInputError(GLFW_PLATFORM_ERROR, |
| "Wayland: Window position setting not supported"); |
| } |
| |
| void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height) |
| { |
| if (width) |
| *width = window->wl.width; |
| if (height) |
| *height = window->wl.height; |
| } |
| |
| void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height) |
| { |
| wl_egl_window_resize(window->wl.native, width, height, 0, 0); |
| window->wl.width = width; |
| window->wl.height = height; |
| } |
| |
| void _glfwPlatformGetFramebufferSize(_GLFWwindow* window, int* width, int* height) |
| { |
| _glfwPlatformGetWindowSize(window, width, height); |
| } |
| |
| void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window, |
| int* left, int* top, |
| int* right, int* bottom) |
| { |
| // TODO |
| fprintf(stderr, "_glfwPlatformGetWindowFrameSize not implemented yet\n"); |
| } |
| |
| void _glfwPlatformIconifyWindow(_GLFWwindow* window) |
| { |
| // TODO |
| fprintf(stderr, "_glfwPlatformIconifyWindow not implemented yet\n"); |
| } |
| |
| void _glfwPlatformRestoreWindow(_GLFWwindow* window) |
| { |
| // TODO |
| fprintf(stderr, "_glfwPlatformRestoreWindow not implemented yet\n"); |
| } |
| |
| void _glfwPlatformShowWindow(_GLFWwindow* window) |
| { |
| wl_shell_surface_set_toplevel(window->wl.shell_surface); |
| } |
| |
| void _glfwPlatformUnhideWindow(_GLFWwindow* window) |
| { |
| // TODO |
| fprintf(stderr, "_glfwPlatformUnhideWindow not implemented yet\n"); |
| } |
| |
| void _glfwPlatformHideWindow(_GLFWwindow* window) |
| { |
| wl_surface_attach(window->wl.surface, NULL, 0, 0); |
| wl_surface_commit(window->wl.surface); |
| } |
| |
| int _glfwPlatformWindowFocused(_GLFWwindow* window) |
| { |
| // TODO |
| return GL_FALSE; |
| } |
| |
| int _glfwPlatformWindowIconified(_GLFWwindow* window) |
| { |
| // TODO |
| return GL_FALSE; |
| } |
| |
| int _glfwPlatformWindowVisible(_GLFWwindow* window) |
| { |
| // TODO |
| return GL_FALSE; |
| } |
| |
| void _glfwPlatformPollEvents(void) |
| { |
| handleEvents(0); |
| } |
| |
| void _glfwPlatformWaitEvents(void) |
| { |
| handleEvents(-1); |
| } |
| |
| void _glfwPlatformPostEmptyEvent(void) |
| { |
| wl_display_sync(_glfw.wl.display); |
| } |
| |
| void _glfwPlatformGetCursorPos(_GLFWwindow* window, double* xpos, double* ypos) |
| { |
| if (xpos) |
| *xpos = window->wl.cursorPosX; |
| if (ypos) |
| *ypos = window->wl.cursorPosY; |
| } |
| |
| void _glfwPlatformSetCursorPos(_GLFWwindow* window, double x, double y) |
| { |
| // A Wayland client can not set the cursor position |
| _glfwInputError(GLFW_PLATFORM_ERROR, |
| "Wayland: Cursor position setting not supported"); |
| } |
| |
| void _glfwPlatformApplyCursorMode(_GLFWwindow* window) |
| { |
| _glfwPlatformSetCursor(window, window->wl.currentCursor); |
| } |
| |
| int _glfwPlatformCreateCursor(_GLFWcursor* cursor, |
| const GLFWimage* image, |
| int xhot, int yhot) |
| { |
| struct wl_shm_pool* pool; |
| int stride = image->width * 4; |
| int length = image->width * image->height * 4; |
| void* data; |
| int fd, i; |
| |
| fd = createAnonymousFile(length); |
| if (fd < 0) |
| { |
| _glfwInputError(GLFW_PLATFORM_ERROR, |
| "Wayland: Creating a buffer file for %d B failed: %m\n", |
| length); |
| return GL_FALSE; |
| } |
| |
| data = mmap(NULL, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); |
| if (data == MAP_FAILED) |
| { |
| _glfwInputError(GLFW_PLATFORM_ERROR, |
| "Wayland: Cursor mmap failed: %m\n"); |
| close(fd); |
| return GL_FALSE; |
| } |
| |
| pool = wl_shm_create_pool(_glfw.wl.shm, fd, length); |
| |
| close(fd); |
| unsigned char* source = (unsigned char*) image->pixels; |
| unsigned char* target = data; |
| for (i = 0; i < image->width * image->height; i++, source += 4) |
| { |
| *target++ = source[2]; |
| *target++ = source[1]; |
| *target++ = source[0]; |
| *target++ = source[3]; |
| } |
| |
| cursor->wl.buffer = |
| wl_shm_pool_create_buffer(pool, 0, |
| image->width, |
| image->height, |
| stride, WL_SHM_FORMAT_ARGB8888); |
| munmap(data, length); |
| wl_shm_pool_destroy(pool); |
| |
| cursor->wl.width = image->width; |
| cursor->wl.height = image->height; |
| cursor->wl.xhot = xhot; |
| cursor->wl.yhot = yhot; |
| return GL_TRUE; |
| } |
| |
| int _glfwPlatformCreateStandardCursor(_GLFWcursor* cursor, int shape) |
| { |
| // TODO |
| fprintf(stderr, "_glfwPlatformCreateStandardCursor not implemented yet\n"); |
| return GL_FALSE; |
| } |
| |
| void _glfwPlatformDestroyCursor(_GLFWcursor* cursor) |
| { |
| wl_buffer_destroy(cursor->wl.buffer); |
| } |
| |
| void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor) |
| { |
| struct wl_buffer* buffer; |
| struct wl_cursor_image* image; |
| struct wl_surface* surface = _glfw.wl.cursorSurface; |
| |
| if (!_glfw.wl.pointer) |
| return; |
| |
| window->wl.currentCursor = cursor; |
| |
| // If we're not in the correct window just save the cursor |
| // the next time the pointer enters the window the cursor will change |
| if (window != _glfw.wl.pointerFocus) |
| return; |
| |
| if (window->cursorMode == GLFW_CURSOR_NORMAL) |
| { |
| if (cursor == NULL) |
| { |
| image = _glfw.wl.defaultCursor->images[0]; |
| buffer = wl_cursor_image_get_buffer(image); |
| if (!buffer) |
| return; |
| wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerSerial, |
| surface, |
| image->hotspot_x, |
| image->hotspot_y); |
| wl_surface_attach(surface, buffer, 0, 0); |
| wl_surface_damage(surface, 0, 0, |
| image->width, image->height); |
| wl_surface_commit(surface); |
| } |
| else |
| { |
| wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerSerial, |
| surface, |
| cursor->wl.xhot, |
| cursor->wl.yhot); |
| wl_surface_attach(surface, cursor->wl.buffer, 0, 0); |
| wl_surface_damage(surface, 0, 0, |
| cursor->wl.width, cursor->wl.height); |
| wl_surface_commit(surface); |
| } |
| } |
| else /* Cursor is hidden set cursor surface to NULL */ |
| { |
| wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerSerial, NULL, 0, 0); |
| } |
| } |
| |
| void _glfwPlatformSetClipboardString(_GLFWwindow* window, const char* string) |
| { |
| // TODO |
| fprintf(stderr, "_glfwPlatformSetClipboardString not implemented yet\n"); |
| } |
| |
| const char* _glfwPlatformGetClipboardString(_GLFWwindow* window) |
| { |
| // TODO |
| fprintf(stderr, "_glfwPlatformGetClipboardString not implemented yet\n"); |
| return NULL; |
| } |
| |
