diff options
Diffstat (limited to 'libs/glfw-3.3.8/src/wl_window.c')
| -rw-r--r-- | libs/glfw-3.3.8/src/wl_window.c | 2794 |
1 files changed, 2794 insertions, 0 deletions
diff --git a/libs/glfw-3.3.8/src/wl_window.c b/libs/glfw-3.3.8/src/wl_window.c new file mode 100644 index 0000000..53cbd33 --- /dev/null +++ b/libs/glfw-3.3.8/src/wl_window.c @@ -0,0 +1,2794 @@ +//======================================================================== +// GLFW 3.3 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. +// +//======================================================================== +// It is fine to use C99 in this file because it will not be built with VS +//======================================================================== + +#define _GNU_SOURCE + +#include "internal.h" + +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <assert.h> +#include <unistd.h> +#include <string.h> +#include <fcntl.h> +#include <sys/mman.h> +#include <sys/timerfd.h> +#include <poll.h> +#include <signal.h> +#include <time.h> + +#define GLFW_BORDER_SIZE 4 +#define GLFW_CAPTION_HEIGHT 24 + +static int createTmpfileCloexec(char* tmpname) +{ + int fd; + + fd = mkostemp(tmpname, O_CLOEXEC); + if (fd >= 0) + unlink(tmpname); + + return fd; +} + +/* + * 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 insufficient, errno + * is set to ENOSPC. If posix_fallocate() is not supported, program may + * receive SIGBUS on accessing mmap()'ed file contents instead. + */ +static int createAnonymousFile(off_t size) +{ + static const char template[] = "/glfw-shared-XXXXXX"; + const char* path; + char* name; + int fd; + int ret; + +#ifdef HAVE_MEMFD_CREATE + fd = memfd_create("glfw-shared", MFD_CLOEXEC | MFD_ALLOW_SEALING); + if (fd >= 0) + { + // We can add this seal before calling posix_fallocate(), as the file + // is currently zero-sized anyway. + // + // There is also no need to check for the return value, we couldn’t do + // anything with it anyway. + fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_SEAL); + } + else +#elif defined(SHM_ANON) + fd = shm_open(SHM_ANON, O_RDWR | O_CLOEXEC, 0600); + if (fd < 0) +#endif + { + 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; + } + +#if defined(SHM_ANON) + // posix_fallocate does not work on SHM descriptors + ret = ftruncate(fd, size); +#else + ret = posix_fallocate(fd, 0, size); +#endif + if (ret != 0) + { + close(fd); + errno = ret; + return -1; + } + return fd; +} + +static struct wl_buffer* createShmBuffer(const GLFWimage* image) +{ + struct wl_shm_pool* pool; + struct wl_buffer* buffer; + 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: Failed to create buffer file of size %d: %s", + length, strerror(errno)); + return NULL; + } + + data = mmap(NULL, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + if (data == MAP_FAILED) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to map file: %s", strerror(errno)); + close(fd); + return NULL; + } + + 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) + { + unsigned int alpha = source[3]; + + *target++ = (unsigned char) ((source[2] * alpha) / 255); + *target++ = (unsigned char) ((source[1] * alpha) / 255); + *target++ = (unsigned char) ((source[0] * alpha) / 255); + *target++ = (unsigned char) alpha; + } + + 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); + + return buffer; +} + +// Wait for data to arrive on any of the specified file descriptors +// +static GLFWbool waitForData(struct pollfd* fds, nfds_t count, double* timeout) +{ + for (;;) + { + if (timeout) + { + const uint64_t base = _glfwPlatformGetTimerValue(); + +#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__CYGWIN__) + const time_t seconds = (time_t) *timeout; + const long nanoseconds = (long) ((*timeout - seconds) * 1e9); + const struct timespec ts = { seconds, nanoseconds }; + const int result = ppoll(fds, count, &ts, NULL); +#elif defined(__NetBSD__) + const time_t seconds = (time_t) *timeout; + const long nanoseconds = (long) ((*timeout - seconds) * 1e9); + const struct timespec ts = { seconds, nanoseconds }; + const int result = pollts(fds, count, &ts, NULL); +#else + const int milliseconds = (int) (*timeout * 1e3); + const int result = poll(fds, count, milliseconds); +#endif + const int error = errno; // clock_gettime may overwrite our error + + *timeout -= (_glfwPlatformGetTimerValue() - base) / + (double) _glfwPlatformGetTimerFrequency(); + + if (result > 0) + return GLFW_TRUE; + else if (result == -1 && error != EINTR && error != EAGAIN) + return GLFW_FALSE; + else if (*timeout <= 0.0) + return GLFW_FALSE; + } + else + { + const int result = poll(fds, count, -1); + if (result > 0) + return GLFW_TRUE; + else if (result == -1 && errno != EINTR && errno != EAGAIN) + return GLFW_FALSE; + } + } +} + +static void createFallbackDecoration(_GLFWdecorationWayland* decoration, + struct wl_surface* parent, + struct wl_buffer* buffer, + int x, int y, + int width, int height) +{ + decoration->surface = wl_compositor_create_surface(_glfw.wl.compositor); + decoration->subsurface = + wl_subcompositor_get_subsurface(_glfw.wl.subcompositor, + decoration->surface, parent); + wl_subsurface_set_position(decoration->subsurface, x, y); + decoration->viewport = wp_viewporter_get_viewport(_glfw.wl.viewporter, + decoration->surface); + wp_viewport_set_destination(decoration->viewport, width, height); + wl_surface_attach(decoration->surface, buffer, 0, 0); + + struct wl_region* region = wl_compositor_create_region(_glfw.wl.compositor); + wl_region_add(region, 0, 0, width, height); + wl_surface_set_opaque_region(decoration->surface, region); + wl_surface_commit(decoration->surface); + wl_region_destroy(region); +} + +static void createFallbackDecorations(_GLFWwindow* window) +{ + unsigned char data[] = { 224, 224, 224, 255 }; + const GLFWimage image = { 1, 1, data }; + + if (!_glfw.wl.viewporter) + return; + + if (!window->wl.decorations.buffer) + window->wl.decorations.buffer = createShmBuffer(&image); + if (!window->wl.decorations.buffer) + return; + + createFallbackDecoration(&window->wl.decorations.top, window->wl.surface, + window->wl.decorations.buffer, + 0, -GLFW_CAPTION_HEIGHT, + window->wl.width, GLFW_CAPTION_HEIGHT); + createFallbackDecoration(&window->wl.decorations.left, window->wl.surface, + window->wl.decorations.buffer, + -GLFW_BORDER_SIZE, -GLFW_CAPTION_HEIGHT, + GLFW_BORDER_SIZE, window->wl.height + GLFW_CAPTION_HEIGHT); + createFallbackDecoration(&window->wl.decorations.right, window->wl.surface, + window->wl.decorations.buffer, + window->wl.width, -GLFW_CAPTION_HEIGHT, + GLFW_BORDER_SIZE, window->wl.height + GLFW_CAPTION_HEIGHT); + createFallbackDecoration(&window->wl.decorations.bottom, window->wl.surface, + window->wl.decorations.buffer, + -GLFW_BORDER_SIZE, window->wl.height, + window->wl.width + GLFW_BORDER_SIZE * 2, GLFW_BORDER_SIZE); +} + +static void destroyFallbackDecoration(_GLFWdecorationWayland* decoration) +{ + if (decoration->subsurface) + wl_subsurface_destroy(decoration->subsurface); + if (decoration->surface) + wl_surface_destroy(decoration->surface); + if (decoration->viewport) + wp_viewport_destroy(decoration->viewport); + decoration->surface = NULL; + decoration->subsurface = NULL; + decoration->viewport = NULL; +} + +static void destroyFallbackDecorations(_GLFWwindow* window) +{ + destroyFallbackDecoration(&window->wl.decorations.top); + destroyFallbackDecoration(&window->wl.decorations.left); + destroyFallbackDecoration(&window->wl.decorations.right); + destroyFallbackDecoration(&window->wl.decorations.bottom); +} + +static void xdgDecorationHandleConfigure(void* userData, + struct zxdg_toplevel_decoration_v1* decoration, + uint32_t mode) +{ + _GLFWwindow* window = userData; + + window->wl.xdg.decorationMode = mode; + + if (mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE) + { + if (window->decorated && !window->monitor) + createFallbackDecorations(window); + } + else + destroyFallbackDecorations(window); +} + +static const struct zxdg_toplevel_decoration_v1_listener xdgDecorationListener = +{ + xdgDecorationHandleConfigure, +}; + +// Makes the surface considered as XRGB instead of ARGB. +static void setContentAreaOpaque(_GLFWwindow* window) +{ + struct wl_region* region; + + region = wl_compositor_create_region(_glfw.wl.compositor); + if (!region) + return; + + wl_region_add(region, 0, 0, window->wl.width, window->wl.height); + wl_surface_set_opaque_region(window->wl.surface, region); + wl_region_destroy(region); +} + + +static void resizeWindow(_GLFWwindow* window) +{ + int scale = window->wl.scale; + int scaledWidth = window->wl.width * scale; + int scaledHeight = window->wl.height * scale; + + if (window->wl.egl.window) + wl_egl_window_resize(window->wl.egl.window, scaledWidth, scaledHeight, 0, 0); + if (!window->wl.transparent) + setContentAreaOpaque(window); + _glfwInputFramebufferSize(window, scaledWidth, scaledHeight); + + if (!window->wl.decorations.top.surface) + return; + + wp_viewport_set_destination(window->wl.decorations.top.viewport, + window->wl.width, GLFW_CAPTION_HEIGHT); + wl_surface_commit(window->wl.decorations.top.surface); + + wp_viewport_set_destination(window->wl.decorations.left.viewport, + GLFW_BORDER_SIZE, window->wl.height + GLFW_CAPTION_HEIGHT); + wl_surface_commit(window->wl.decorations.left.surface); + + wl_subsurface_set_position(window->wl.decorations.right.subsurface, + window->wl.width, -GLFW_CAPTION_HEIGHT); + wp_viewport_set_destination(window->wl.decorations.right.viewport, + GLFW_BORDER_SIZE, window->wl.height + GLFW_CAPTION_HEIGHT); + wl_surface_commit(window->wl.decorations.right.surface); + + wl_subsurface_set_position(window->wl.decorations.bottom.subsurface, + -GLFW_BORDER_SIZE, window->wl.height); + wp_viewport_set_destination(window->wl.decorations.bottom.viewport, + window->wl.width + GLFW_BORDER_SIZE * 2, GLFW_BORDER_SIZE); + wl_surface_commit(window->wl.decorations.bottom.surface); +} + +void _glfwUpdateContentScaleWayland(_GLFWwindow* window) +{ + if (_glfw.wl.compositorVersion < WL_SURFACE_SET_BUFFER_SCALE_SINCE_VERSION) + return; + + // Get the scale factor from the highest scale monitor. + int maxScale = 1; + + for (int i = 0; i < window->wl.monitorsCount; i++) + maxScale = _glfw_max(window->wl.monitors[i]->wl.scale, maxScale); + + // Only change the framebuffer size if the scale changed. + if (window->wl.scale != maxScale) + { + window->wl.scale = maxScale; + wl_surface_set_buffer_scale(window->wl.surface, maxScale); + _glfwInputWindowContentScale(window, maxScale, maxScale); + resizeWindow(window); + } +} + +static void surfaceHandleEnter(void* userData, + struct wl_surface* surface, + struct wl_output* output) +{ + _GLFWwindow* window = userData; + _GLFWmonitor* monitor = wl_output_get_user_data(output); + + if (window->wl.monitorsCount + 1 > window->wl.monitorsSize) + { + ++window->wl.monitorsSize; + window->wl.monitors = + realloc(window->wl.monitors, + window->wl.monitorsSize * sizeof(_GLFWmonitor*)); + } + + window->wl.monitors[window->wl.monitorsCount++] = monitor; + + _glfwUpdateContentScaleWayland(window); +} + +static void surfaceHandleLeave(void* userData, + struct wl_surface* surface, + struct wl_output* output) +{ + _GLFWwindow* window = userData; + _GLFWmonitor* monitor = wl_output_get_user_data(output); + GLFWbool found; + int i; + + for (i = 0, found = GLFW_FALSE; i < window->wl.monitorsCount - 1; ++i) + { + if (monitor == window->wl.monitors[i]) + found = GLFW_TRUE; + if (found) + window->wl.monitors[i] = window->wl.monitors[i + 1]; + } + window->wl.monitors[--window->wl.monitorsCount] = NULL; + + _glfwUpdateContentScaleWayland(window); +} + +static const struct wl_surface_listener surfaceListener = +{ + surfaceHandleEnter, + surfaceHandleLeave +}; + +static void setIdleInhibitor(_GLFWwindow* window, GLFWbool enable) +{ + if (enable && !window->wl.idleInhibitor && _glfw.wl.idleInhibitManager) + { + window->wl.idleInhibitor = + zwp_idle_inhibit_manager_v1_create_inhibitor( + _glfw.wl.idleInhibitManager, window->wl.surface); + if (!window->wl.idleInhibitor) + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to create idle inhibitor"); + } + else if (!enable && window->wl.idleInhibitor) + { + zwp_idle_inhibitor_v1_destroy(window->wl.idleInhibitor); + window->wl.idleInhibitor = NULL; + } +} + +// Make the specified window and its video mode active on its monitor +// +static void acquireMonitor(_GLFWwindow* window) +{ + if (window->wl.xdg.toplevel) + { + xdg_toplevel_set_fullscreen(window->wl.xdg.toplevel, + window->monitor->wl.output); + } + + setIdleInhibitor(window, GLFW_TRUE); + + if (window->wl.decorations.top.surface) + destroyFallbackDecorations(window); +} + +// Remove the window and restore the original video mode +// +static void releaseMonitor(_GLFWwindow* window) +{ + if (window->wl.xdg.toplevel) + xdg_toplevel_unset_fullscreen(window->wl.xdg.toplevel); + + setIdleInhibitor(window, GLFW_FALSE); + + if (window->wl.xdg.decorationMode != ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE) + { + if (window->decorated) + createFallbackDecorations(window); + } +} + +static void xdgToplevelHandleConfigure(void* userData, + struct xdg_toplevel* toplevel, + int32_t width, + int32_t height, + struct wl_array* states) +{ + _GLFWwindow* window = userData; + uint32_t* state; + + window->wl.pending.activated = GLFW_FALSE; + window->wl.pending.maximized = GLFW_FALSE; + window->wl.pending.fullscreen = GLFW_FALSE; + + wl_array_for_each(state, states) + { + switch (*state) + { + case XDG_TOPLEVEL_STATE_MAXIMIZED: + window->wl.pending.maximized = GLFW_TRUE; + break; + case XDG_TOPLEVEL_STATE_FULLSCREEN: + window->wl.pending.fullscreen = GLFW_TRUE; + break; + case XDG_TOPLEVEL_STATE_RESIZING: + break; + case XDG_TOPLEVEL_STATE_ACTIVATED: + window->wl.pending.activated = GLFW_TRUE; + break; + } + } + + if (width && height) + { + if (window->wl.decorations.top.surface) + { + window->wl.pending.width = _glfw_max(0, width - GLFW_BORDER_SIZE * 2); + window->wl.pending.height = + _glfw_max(0, height - GLFW_BORDER_SIZE - GLFW_CAPTION_HEIGHT); + } + else + { + window->wl.pending.width = width; + window->wl.pending.height = height; + } + } + else + { + window->wl.pending.width = window->wl.width; + window->wl.pending.height = window->wl.height; + } +} + +static void xdgToplevelHandleClose(void* userData, + struct xdg_toplevel* toplevel) +{ + _GLFWwindow* window = userData; + _glfwInputWindowCloseRequest(window); +} + +static const struct xdg_toplevel_listener xdgToplevelListener = +{ + xdgToplevelHandleConfigure, + xdgToplevelHandleClose +}; + +static void xdgSurfaceHandleConfigure(void* userData, + struct xdg_surface* surface, + uint32_t serial) +{ + _GLFWwindow* window = userData; + + xdg_surface_ack_configure(surface, serial); + + if (window->wl.activated != window->wl.pending.activated) + { + window->wl.activated = window->wl.pending.activated; + if (!window->wl.activated) + { + if (window->monitor && window->autoIconify) + xdg_toplevel_set_minimized(window->wl.xdg.toplevel); + } + } + + if (window->wl.maximized != window->wl.pending.maximized) + { + window->wl.maximized = window->wl.pending.maximized; + _glfwInputWindowMaximize(window, window->wl.maximized); + } + + window->wl.fullscreen = window->wl.pending.fullscreen; + + int width = window->wl.pending.width; + int height = window->wl.pending.height; + + if (!window->wl.maximized && !window->wl.fullscreen) + { + if (window->numer != GLFW_DONT_CARE && window->denom != GLFW_DONT_CARE) + { + const float aspectRatio = (float) width / (float) height; + const float targetRatio = (float) window->numer / (float) window->denom; + if (aspectRatio < targetRatio) + height = width / targetRatio; + else if (aspectRatio > targetRatio) + width = height * targetRatio; + } + } + + if (width != window->wl.width || height != window->wl.height) + { + window->wl.width = width; + window->wl.height = height; + resizeWindow(window); + + _glfwInputWindowSize(window, width, height); + + if (window->wl.visible) + _glfwInputWindowDamage(window); + } + + if (!window->wl.visible) + { + // Allow the window to be mapped only if it either has no XDG + // decorations or they have already received a configure event + if (!window->wl.xdg.decoration || window->wl.xdg.decorationMode) + { + window->wl.visible = GLFW_TRUE; + _glfwInputWindowDamage(window); + } + } +} + +static const struct xdg_surface_listener xdgSurfaceListener = +{ + xdgSurfaceHandleConfigure +}; + +static GLFWbool createShellObjects(_GLFWwindow* window) +{ + window->wl.xdg.surface = xdg_wm_base_get_xdg_surface(_glfw.wl.wmBase, + window->wl.surface); + if (!window->wl.xdg.surface) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to create xdg-surface for window"); + return GLFW_FALSE; + } + + xdg_surface_add_listener(window->wl.xdg.surface, &xdgSurfaceListener, window); + + window->wl.xdg.toplevel = xdg_surface_get_toplevel(window->wl.xdg.surface); + if (!window->wl.xdg.toplevel) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to create xdg-toplevel for window"); + return GLFW_FALSE; + } + + xdg_toplevel_add_listener(window->wl.xdg.toplevel, &xdgToplevelListener, window); + + if (window->wl.title) + xdg_toplevel_set_title(window->wl.xdg.toplevel, window->wl.title); + + if (window->monitor) + { + xdg_toplevel_set_fullscreen(window->wl.xdg.toplevel, window->monitor->wl.output); + setIdleInhibitor(window, GLFW_TRUE); + } + else + { + if (window->wl.maximized) + xdg_toplevel_set_maximized(window->wl.xdg.toplevel); + + setIdleInhibitor(window, GLFW_FALSE); + + if (_glfw.wl.decorationManager) + { + window->wl.xdg.decoration = + zxdg_decoration_manager_v1_get_toplevel_decoration( + _glfw.wl.decorationManager, window->wl.xdg.toplevel); + zxdg_toplevel_decoration_v1_add_listener(window->wl.xdg.decoration, + &xdgDecorationListener, + window); + + uint32_t mode; + + if (window->decorated) + mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE; + else + mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE; + + zxdg_toplevel_decoration_v1_set_mode(window->wl.xdg.decoration, mode); + } + else + { + if (window->decorated) + createFallbackDecorations(window); + } + } + + if (window->minwidth != GLFW_DONT_CARE && window->minheight != GLFW_DONT_CARE) + { + int minwidth = window->minwidth; + int minheight = window->minheight; + + if (window->wl.decorations.top.surface) + { + minwidth += GLFW_BORDER_SIZE * 2; + minheight += GLFW_CAPTION_HEIGHT + GLFW_BORDER_SIZE; + } + + xdg_toplevel_set_min_size(window->wl.xdg.toplevel, minwidth, minheight); + } + + if (window->maxwidth != GLFW_DONT_CARE && window->maxheight != GLFW_DONT_CARE) + { + int maxwidth = window->maxwidth; + int maxheight = window->maxheight; + + if (window->wl.decorations.top.surface) + { + maxwidth += GLFW_BORDER_SIZE * 2; + maxheight += GLFW_CAPTION_HEIGHT + GLFW_BORDER_SIZE; + } + + xdg_toplevel_set_max_size(window->wl.xdg.toplevel, maxwidth, maxheight); + } + + wl_surface_commit(window->wl.surface); + wl_display_roundtrip(_glfw.wl.display); + + return GLFW_TRUE; +} + +static void destroyShellObjects(_GLFWwindow* window) +{ + destroyFallbackDecorations(window); + + if (window->wl.xdg.decoration) + zxdg_toplevel_decoration_v1_destroy(window->wl.xdg.decoration); + + if (window->wl.xdg.toplevel) + xdg_toplevel_destroy(window->wl.xdg.toplevel); + + if (window->wl.xdg.surface) + xdg_surface_destroy(window->wl.xdg.surface); + + window->wl.xdg.decoration = NULL; + window->wl.xdg.decorationMode = 0; + window->wl.xdg.toplevel = NULL; + window->wl.xdg.surface = NULL; +} + +static GLFWbool createNativeSurface(_GLFWwindow* window, + const _GLFWwndconfig* wndconfig, + const _GLFWfbconfig* fbconfig) +{ + window->wl.surface = wl_compositor_create_surface(_glfw.wl.compositor); + if (!window->wl.surface) + { + _glfwInputError(GLFW_PLATFORM_ERROR, "Wayland: Failed to create window surface"); + return GLFW_FALSE; + } + + wl_surface_add_listener(window->wl.surface, + &surfaceListener, + window); + + wl_surface_set_user_data(window->wl.surface, window); + + window->wl.width = wndconfig->width; + window->wl.height = wndconfig->height; + window->wl.scale = 1; + window->wl.title = _glfw_strdup(wndconfig->title); + + window->wl.maximized = wndconfig->maximized; + + window->wl.transparent = fbconfig->transparent; + if (!window->wl.transparent) + setContentAreaOpaque(window); + + return GLFW_TRUE; +} + +static void setCursorImage(_GLFWwindow* window, + _GLFWcursorWayland* cursorWayland) +{ + struct itimerspec timer = {}; + struct wl_cursor* wlCursor = cursorWayland->cursor; + struct wl_cursor_image* image; + struct wl_buffer* buffer; + struct wl_surface* surface = _glfw.wl.cursorSurface; + int scale = 1; + + if (!wlCursor) + buffer = cursorWayland->buffer; + else + { + if (window->wl.scale > 1 && cursorWayland->cursorHiDPI) + { + wlCursor = cursorWayland->cursorHiDPI; + scale = 2; + } + + image = wlCursor->images[cursorWayland->currentImage]; + buffer = wl_cursor_image_get_buffer(image); + if (!buffer) + return; + + timer.it_value.tv_sec = image->delay / 1000; + timer.it_value.tv_nsec = (image->delay % 1000) * 1000000; + timerfd_settime(_glfw.wl.cursorTimerfd, 0, &timer, NULL); + + cursorWayland->width = image->width; + cursorWayland->height = image->height; + cursorWayland->xhot = image->hotspot_x; + cursorWayland->yhot = image->hotspot_y; + } + + wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerEnterSerial, + surface, + cursorWayland->xhot / scale, + cursorWayland->yhot / scale); + wl_surface_set_buffer_scale(surface, scale); + wl_surface_attach(surface, buffer, 0, 0); + wl_surface_damage(surface, 0, 0, + cursorWayland->width, cursorWayland->height); + wl_surface_commit(surface); +} + +static void incrementCursorImage(_GLFWwindow* window) +{ + _GLFWcursor* cursor; + + if (!window || window->wl.decorations.focus != mainWindow) + return; + + cursor = window->wl.currentCursor; + if (cursor && cursor->wl.cursor) + { + cursor->wl.currentImage += 1; + cursor->wl.currentImage %= cursor->wl.cursor->image_count; + setCursorImage(window, &cursor->wl); + } +} + +static GLFWbool flushDisplay(void) +{ + while (wl_display_flush(_glfw.wl.display) == -1) + { + if (errno != EAGAIN) + return GLFW_FALSE; + + struct pollfd fd = { wl_display_get_fd(_glfw.wl.display), POLLOUT }; + + while (poll(&fd, 1, -1) == -1) + { + if (errno != EINTR && errno != EAGAIN) + return GLFW_FALSE; + } + } + + return GLFW_TRUE; +} + +static void handleEvents(double* timeout) +{ + GLFWbool event = GLFW_FALSE; + struct pollfd fds[] = + { + { wl_display_get_fd(_glfw.wl.display), POLLIN }, + { _glfw.wl.timerfd, POLLIN }, + { _glfw.wl.cursorTimerfd, POLLIN }, + }; + + while (!event) + { + while (wl_display_prepare_read(_glfw.wl.display) != 0) + wl_display_dispatch_pending(_glfw.wl.display); + + // If an error other than EAGAIN happens, we have likely been disconnected + // from the Wayland session; try to handle that the best we can. + if (!flushDisplay()) + { + wl_display_cancel_read(_glfw.wl.display); + + _GLFWwindow* window = _glfw.windowListHead; + while (window) + { + _glfwInputWindowCloseRequest(window); + window = window->next; + } + + return; + } + + if (!waitForData(fds, 3, timeout)) + { + wl_display_cancel_read(_glfw.wl.display); + return; + } + + if (fds[0].revents & POLLIN) + { + wl_display_read_events(_glfw.wl.display); + if (wl_display_dispatch_pending(_glfw.wl.display) > 0) + event = GLFW_TRUE; + } + else + wl_display_cancel_read(_glfw.wl.display); + + if (fds[1].revents & POLLIN) + { + uint64_t repeats; + + if (read(_glfw.wl.timerfd, &repeats, sizeof(repeats)) == 8) + { + for (uint64_t i = 0; i < repeats; i++) + { + _glfwInputKey(_glfw.wl.keyboardFocus, + _glfw.wl.keyboardLastKey, + _glfw.wl.keyboardLastScancode, + GLFW_PRESS, + _glfw.wl.xkb.modifiers); + _glfwInputTextWayland(_glfw.wl.keyboardFocus, + _glfw.wl.keyboardLastScancode); + } + + event = GLFW_TRUE; + } + } + + if (fds[2].revents & POLLIN) + { + uint64_t repeats; + + if (read(_glfw.wl.cursorTimerfd, &repeats, sizeof(repeats)) == 8) + { + incrementCursorImage(_glfw.wl.pointerFocus); + event = GLFW_TRUE; + } + } + } +} + +// Reads the specified data offer as the specified MIME type +// +static char* readDataOfferAsString(struct wl_data_offer* offer, const char* mimeType) +{ + int fds[2]; + + if (pipe2(fds, O_CLOEXEC) == -1) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to create pipe for data offer: %s", + strerror(errno)); + return NULL; + } + + wl_data_offer_receive(offer, mimeType, fds[1]); + flushDisplay(); + close(fds[1]); + + char* string = NULL; + size_t size = 0; + size_t length = 0; + + for (;;) + { + const size_t readSize = 4096; + const size_t requiredSize = length + readSize + 1; + if (requiredSize > size) + { + char* longer = realloc(string, requiredSize); + if (!longer) + { + _glfwInputError(GLFW_OUT_OF_MEMORY, NULL); + close(fds[0]); + return NULL; + } + + string = longer; + size = requiredSize; + } + + const ssize_t result = read(fds[0], string + length, readSize); + if (result == 0) + break; + else if (result == -1) + { + if (errno == EINTR) + continue; + + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to read from data offer pipe: %s", + strerror(errno)); + close(fds[0]); + return NULL; + } + + length += result; + } + + close(fds[0]); + + string[length] = '\0'; + return string; +} + +static _GLFWwindow* findWindowFromDecorationSurface(struct wl_surface* surface, + _GLFWdecorationSideWayland* which) +{ + _GLFWdecorationSideWayland focus; + _GLFWwindow* window = _glfw.windowListHead; + if (!which) + which = &focus; + while (window) + { + if (surface == window->wl.decorations.top.surface) + { + *which = topDecoration; + break; + } + if (surface == window->wl.decorations.left.surface) + { + *which = leftDecoration; + break; + } + if (surface == window->wl.decorations.right.surface) + { + *which = rightDecoration; + break; + } + if (surface == window->wl.decorations.bottom.surface) + { + *which = bottomDecoration; + break; + } + window = window->next; + } + return window; +} + +static void pointerHandleEnter(void* userData, + struct wl_pointer* pointer, + uint32_t serial, + struct wl_surface* surface, + wl_fixed_t sx, + wl_fixed_t sy) +{ + // Happens in the case we just destroyed the surface. + if (!surface) + return; + + _GLFWdecorationSideWayland focus = mainWindow; + _GLFWwindow* window = wl_surface_get_user_data(surface); + if (!window) + { + window = findWindowFromDecorationSurface(surface, &focus); + if (!window) + return; + } + + window->wl.decorations.focus = focus; + _glfw.wl.serial = serial; + _glfw.wl.pointerEnterSerial = serial; + _glfw.wl.pointerFocus = window; + + window->wl.hovered = GLFW_TRUE; + + _glfwPlatformSetCursor(window, window->wl.currentCursor); + _glfwInputCursorEnter(window, GLFW_TRUE); +} + +static void pointerHandleLeave(void* userData, + struct wl_pointer* pointer, + uint32_t serial, + struct wl_surface* surface) +{ + _GLFWwindow* window = _glfw.wl.pointerFocus; + + if (!window) + return; + + window->wl.hovered = GLFW_FALSE; + + _glfw.wl.serial = serial; + _glfw.wl.pointerFocus = NULL; + _glfwInputCursorEnter(window, GLFW_FALSE); + _glfw.wl.cursorPreviousName = NULL; +} + +static void setCursor(_GLFWwindow* window, const char* name) +{ + struct wl_buffer* buffer; + struct wl_cursor* cursor; + struct wl_cursor_image* image; + struct wl_surface* surface = _glfw.wl.cursorSurface; + struct wl_cursor_theme* theme = _glfw.wl.cursorTheme; + int scale = 1; + + if (window->wl.scale > 1 && _glfw.wl.cursorThemeHiDPI) + { + // We only support up to scale=2 for now, since libwayland-cursor + // requires us to load a different theme for each size. + scale = 2; + theme = _glfw.wl.cursorThemeHiDPI; + } + + cursor = wl_cursor_theme_get_cursor(theme, name); + if (!cursor) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Standard cursor shape unavailable"); + return; + } + // TODO: handle animated cursors too. + image = cursor->images[0]; + + if (!image) + return; + + buffer = wl_cursor_image_get_buffer(image); + if (!buffer) + return; + wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerEnterSerial, + surface, + image->hotspot_x / scale, + image->hotspot_y / scale); + wl_surface_set_buffer_scale(surface, scale); + wl_surface_attach(surface, buffer, 0, 0); + wl_surface_damage(surface, 0, 0, + image->width, image->height); + wl_surface_commit(surface); + _glfw.wl.cursorPreviousName = name; +} + +static void pointerHandleMotion(void* userData, + struct wl_pointer* pointer, + uint32_t time, + wl_fixed_t sx, + wl_fixed_t sy) +{ + _GLFWwindow* window = _glfw.wl.pointerFocus; + const char* cursorName = NULL; + double x, y; + + if (!window) + return; + + if (window->cursorMode == GLFW_CURSOR_DISABLED) + return; + x = wl_fixed_to_double(sx); + y = wl_fixed_to_double(sy); + window->wl.cursorPosX = x; + window->wl.cursorPosY = y; + + switch (window->wl.decorations.focus) + { + case mainWindow: + _glfwInputCursorPos(window, x, y); + _glfw.wl.cursorPreviousName = NULL; + return; + case topDecoration: + if (y < GLFW_BORDER_SIZE) + cursorName = "n-resize"; + else + cursorName = "left_ptr"; + break; + case leftDecoration: + if (y < GLFW_BORDER_SIZE) + cursorName = "nw-resize"; + else + cursorName = "w-resize"; + break; + case rightDecoration: + if (y < GLFW_BORDER_SIZE) + cursorName = "ne-resize"; + else + cursorName = "e-resize"; + break; + case bottomDecoration: + if (x < GLFW_BORDER_SIZE) + cursorName = "sw-resize"; + else if (x > window->wl.width + GLFW_BORDER_SIZE) + cursorName = "se-resize"; + else + cursorName = "s-resize"; + break; + default: + assert(0); + } + if (_glfw.wl.cursorPreviousName != cursorName) + setCursor(window, cursorName); +} + +static void pointerHandleButton(void* userData, + struct wl_pointer* pointer, + uint32_t serial, + uint32_t time, + uint32_t button, + uint32_t state) +{ + _GLFWwindow* window = _glfw.wl.pointerFocus; + int glfwButton; + + uint32_t edges = XDG_TOPLEVEL_RESIZE_EDGE_NONE; + + if (!window) + return; + if (button == BTN_LEFT) + { + switch (window->wl.decorations.focus) + { + case mainWindow: + break; + case topDecoration: + if (window->wl.cursorPosY < GLFW_BORDER_SIZE) + edges = XDG_TOPLEVEL_RESIZE_EDGE_TOP; + else + { + xdg_toplevel_move(window->wl.xdg.toplevel, _glfw.wl.seat, serial); + } + break; + case leftDecoration: + if (window->wl.cursorPosY < GLFW_BORDER_SIZE) + edges = XDG_TOPLEVEL_RESIZE_EDGE_TOP_LEFT; + else + edges = XDG_TOPLEVEL_RESIZE_EDGE_LEFT; + break; + case rightDecoration: + if (window->wl.cursorPosY < GLFW_BORDER_SIZE) + edges = XDG_TOPLEVEL_RESIZE_EDGE_TOP_RIGHT; + else + edges = XDG_TOPLEVEL_RESIZE_EDGE_RIGHT; + break; + case bottomDecoration: + if (window->wl.cursorPosX < GLFW_BORDER_SIZE) + edges = XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM_LEFT; + else if (window->wl.cursorPosX > window->wl.width + GLFW_BORDER_SIZE) + edges = XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM_RIGHT; + else + edges = XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM; + break; + default: + assert(0); + } + if (edges != XDG_TOPLEVEL_RESIZE_EDGE_NONE) + { + xdg_toplevel_resize(window->wl.xdg.toplevel, _glfw.wl.seat, + serial, edges); + return; + } + } + else if (button == BTN_RIGHT) + { + if (window->wl.decorations.focus != mainWindow && window->wl.xdg.toplevel) + { + xdg_toplevel_show_window_menu(window->wl.xdg.toplevel, + _glfw.wl.seat, serial, + window->wl.cursorPosX, + window->wl.cursorPosY); + return; + } + } + + // Don’t pass the button to the user if it was related to a decoration. + if (window->wl.decorations.focus != mainWindow) + return; + + _glfw.wl.serial = serial; + + /* Makes left, right and middle 0, 1 and 2. Overall order follows evdev + * codes. */ + glfwButton = button - BTN_LEFT; + + _glfwInputMouseClick(window, + glfwButton, + state == WL_POINTER_BUTTON_STATE_PRESSED + ? GLFW_PRESS + : GLFW_RELEASE, + _glfw.wl.xkb.modifiers); +} + +static void pointerHandleAxis(void* userData, + struct wl_pointer* pointer, + uint32_t time, + uint32_t axis, + wl_fixed_t value) +{ + _GLFWwindow* window = _glfw.wl.pointerFocus; + double x = 0.0, y = 0.0; + // Wayland scroll events are in pointer motion coordinate space (think two + // finger scroll). The factor 10 is commonly used to convert to "scroll + // step means 1.0. + const double scrollFactor = 1.0 / 10.0; + + if (!window) + return; + + assert(axis == WL_POINTER_AXIS_HORIZONTAL_SCROLL || + axis == WL_POINTER_AXIS_VERTICAL_SCROLL); + + if (axis == WL_POINTER_AXIS_HORIZONTAL_SCROLL) + x = -wl_fixed_to_double(value) * scrollFactor; + else if (axis == WL_POINTER_AXIS_VERTICAL_SCROLL) + y = -wl_fixed_to_double(value) * scrollFactor; + + _glfwInputScroll(window, x, y); +} + +static const struct wl_pointer_listener pointerListener = +{ + pointerHandleEnter, + pointerHandleLeave, + pointerHandleMotion, + pointerHandleButton, + pointerHandleAxis, +}; + +static void keyboardHandleKeymap(void* userData, + struct wl_keyboard* keyboard, + uint32_t format, + int fd, + uint32_t size) +{ + struct xkb_keymap* keymap; + struct xkb_state* state; + struct xkb_compose_table* composeTable; + struct xkb_compose_state* composeState; + char* mapStr; + const char* locale; + + if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1) + { + close(fd); + return; + } + + mapStr = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0); + if (mapStr == MAP_FAILED) { + close(fd); + return; + } + + keymap = xkb_keymap_new_from_string(_glfw.wl.xkb.context, + mapStr, + XKB_KEYMAP_FORMAT_TEXT_V1, + 0); + munmap(mapStr, size); + close(fd); + + if (!keymap) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to compile keymap"); + return; + } + + state = xkb_state_new(keymap); + if (!state) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to create XKB state"); + xkb_keymap_unref(keymap); + return; + } + + // Look up the preferred locale, falling back to "C" as default. + locale = getenv("LC_ALL"); + if (!locale) + locale = getenv("LC_CTYPE"); + if (!locale) + locale = getenv("LANG"); + if (!locale) + locale = "C"; + + composeTable = + xkb_compose_table_new_from_locale(_glfw.wl.xkb.context, locale, + XKB_COMPOSE_COMPILE_NO_FLAGS); + if (composeTable) + { + composeState = + xkb_compose_state_new(composeTable, XKB_COMPOSE_STATE_NO_FLAGS); + xkb_compose_table_unref(composeTable); + if (composeState) + _glfw.wl.xkb.composeState = composeState; + else + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to create XKB compose state"); + } + else + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to create XKB compose table"); + } + + xkb_keymap_unref(_glfw.wl.xkb.keymap); + xkb_state_unref(_glfw.wl.xkb.state); + _glfw.wl.xkb.keymap = keymap; + _glfw.wl.xkb.state = state; + + _glfw.wl.xkb.controlIndex = xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Control"); + _glfw.wl.xkb.altIndex = xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Mod1"); + _glfw.wl.xkb.shiftIndex = xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Shift"); + _glfw.wl.xkb.superIndex = xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Mod4"); + _glfw.wl.xkb.capsLockIndex = xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Lock"); + _glfw.wl.xkb.numLockIndex = xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Mod2"); +} + +static void keyboardHandleEnter(void* userData, + struct wl_keyboard* keyboard, + uint32_t serial, + struct wl_surface* surface, + struct wl_array* keys) +{ + // Happens in the case we just destroyed the surface. + if (!surface) + return; + + _GLFWwindow* window = wl_surface_get_user_data(surface); + if (!window) + { + window = findWindowFromDecorationSurface(surface, NULL); + if (!window) + return; + } + + _glfw.wl.serial = serial; + _glfw.wl.keyboardFocus = window; + _glfwInputWindowFocus(window, GLFW_TRUE); +} + +static void keyboardHandleLeave(void* userData, + struct wl_keyboard* keyboard, + uint32_t serial, + struct wl_surface* surface) +{ + _GLFWwindow* window = _glfw.wl.keyboardFocus; + + if (!window) + return; + + struct itimerspec timer = {}; + timerfd_settime(_glfw.wl.timerfd, 0, &timer, NULL); + + _glfw.wl.serial = serial; + _glfw.wl.keyboardFocus = NULL; + _glfwInputWindowFocus(window, GLFW_FALSE); +} + +static int translateKey(uint32_t scancode) +{ + if (scancode < sizeof(_glfw.wl.keycodes) / sizeof(_glfw.wl.keycodes[0])) + return _glfw.wl.keycodes[scancode]; + + return GLFW_KEY_UNKNOWN; +} + +static xkb_keysym_t composeSymbol(xkb_keysym_t sym) +{ + if (sym == XKB_KEY_NoSymbol || !_glfw.wl.xkb.composeState) + return sym; + if (xkb_compose_state_feed(_glfw.wl.xkb.composeState, sym) + != XKB_COMPOSE_FEED_ACCEPTED) + return sym; + switch (xkb_compose_state_get_status(_glfw.wl.xkb.composeState)) + { + case XKB_COMPOSE_COMPOSED: + return xkb_compose_state_get_one_sym(_glfw.wl.xkb.composeState); + case XKB_COMPOSE_COMPOSING: + case XKB_COMPOSE_CANCELLED: + return XKB_KEY_NoSymbol; + case XKB_COMPOSE_NOTHING: + default: + return sym; + } +} + +GLFWbool _glfwInputTextWayland(_GLFWwindow* window, uint32_t scancode) +{ + const xkb_keysym_t* keysyms; + const xkb_keycode_t keycode = scancode + 8; + + if (xkb_state_key_get_syms(_glfw.wl.xkb.state, keycode, &keysyms) == 1) + { + const xkb_keysym_t keysym = composeSymbol(keysyms[0]); + const uint32_t codepoint = _glfwKeySym2Unicode(keysym); + if (codepoint != GLFW_INVALID_CODEPOINT) + { + const int mods = _glfw.wl.xkb.modifiers; + const int plain = !(mods & (GLFW_MOD_CONTROL | GLFW_MOD_ALT)); + _glfwInputChar(window, codepoint, mods, plain); + } + } + + return xkb_keymap_key_repeats(_glfw.wl.xkb.keymap, keycode); +} + +static void keyboardHandleKey(void* userData, + struct wl_keyboard* keyboard, + uint32_t serial, + uint32_t time, + uint32_t scancode, + uint32_t state) +{ + _GLFWwindow* window = _glfw.wl.keyboardFocus; + if (!window) + return; + + const int key = translateKey(scancode); + const int action = + state == WL_KEYBOARD_KEY_STATE_PRESSED ? GLFW_PRESS : GLFW_RELEASE; + + _glfw.wl.serial = serial; + _glfwInputKey(window, key, scancode, action, _glfw.wl.xkb.modifiers); + + struct itimerspec timer = {}; + + if (action == GLFW_PRESS) + { + const GLFWbool shouldRepeat = _glfwInputTextWayland(window, scancode); + + if (shouldRepeat && _glfw.wl.keyboardRepeatRate > 0) + { + _glfw.wl.keyboardLastKey = key; + _glfw.wl.keyboardLastScancode = scancode; + if (_glfw.wl.keyboardRepeatRate > 1) + timer.it_interval.tv_nsec = 1000000000 / _glfw.wl.keyboardRepeatRate; + else + timer.it_interval.tv_sec = 1; + + timer.it_value.tv_sec = _glfw.wl.keyboardRepeatDelay / 1000; + timer.it_value.tv_nsec = (_glfw.wl.keyboardRepeatDelay % 1000) * 1000000; + } + } + + timerfd_settime(_glfw.wl.timerfd, 0, &timer, NULL); +} + +static void keyboardHandleModifiers(void* userData, + struct wl_keyboard* keyboard, + uint32_t serial, + uint32_t modsDepressed, + uint32_t modsLatched, + uint32_t modsLocked, + uint32_t group) +{ + _glfw.wl.serial = serial; + + if (!_glfw.wl.xkb.keymap) + return; + + xkb_state_update_mask(_glfw.wl.xkb.state, + modsDepressed, + modsLatched, + modsLocked, + 0, + 0, + group); + + _glfw.wl.xkb.modifiers = 0; + + struct + { + xkb_mod_index_t index; + unsigned int bit; + } modifiers[] = + { + { _glfw.wl.xkb.controlIndex, GLFW_MOD_CONTROL }, + { _glfw.wl.xkb.altIndex, GLFW_MOD_ALT }, + { _glfw.wl.xkb.shiftIndex, GLFW_MOD_SHIFT }, + { _glfw.wl.xkb.superIndex, GLFW_MOD_SUPER }, + { _glfw.wl.xkb.capsLockIndex, GLFW_MOD_CAPS_LOCK }, + { _glfw.wl.xkb.numLockIndex, GLFW_MOD_NUM_LOCK } + }; + + for (size_t i = 0; i < sizeof(modifiers) / sizeof(modifiers[0]); i++) + { + if (xkb_state_mod_index_is_active(_glfw.wl.xkb.state, + modifiers[i].index, + XKB_STATE_MODS_EFFECTIVE) == 1) + { + _glfw.wl.xkb.modifiers |= modifiers[i].bit; + } + } +} + +#ifdef WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION +static void keyboardHandleRepeatInfo(void* userData, + struct wl_keyboard* keyboard, + int32_t rate, + int32_t delay) +{ + if (keyboard != _glfw.wl.keyboard) + return; + + _glfw.wl.keyboardRepeatRate = rate; + _glfw.wl.keyboardRepeatDelay = delay; +} +#endif + +static const struct wl_keyboard_listener keyboardListener = +{ + keyboardHandleKeymap, + keyboardHandleEnter, + keyboardHandleLeave, + keyboardHandleKey, + keyboardHandleModifiers, +#ifdef WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION + keyboardHandleRepeatInfo, +#endif +}; + +static void seatHandleCapabilities(void* userData, + struct wl_seat* seat, + enum wl_seat_capability caps) +{ + if ((caps & WL_SEAT_CAPABILITY_POINTER) && !_glfw.wl.pointer) + { + _glfw.wl.pointer = wl_seat_get_pointer(seat); + wl_pointer_add_listener(_glfw.wl.pointer, &pointerListener, NULL); + } + else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && _glfw.wl.pointer) + { + wl_pointer_destroy(_glfw.wl.pointer); + _glfw.wl.pointer = NULL; + } + + if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !_glfw.wl.keyboard) + { + _glfw.wl.keyboard = wl_seat_get_keyboard(seat); + wl_keyboard_add_listener(_glfw.wl.keyboard, &keyboardListener, NULL); + } + else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && _glfw.wl.keyboard) + { + wl_keyboard_destroy(_glfw.wl.keyboard); + _glfw.wl.keyboard = NULL; + } +} + +static void seatHandleName(void* userData, + struct wl_seat* seat, + const char* name) +{ +} + +static const struct wl_seat_listener seatListener = +{ + seatHandleCapabilities, + seatHandleName, +}; + +static void dataOfferHandleOffer(void* userData, + struct wl_data_offer* offer, + const char* mimeType) +{ + for (unsigned int i = 0; i < _glfw.wl.offerCount; i++) + { + if (_glfw.wl.offers[i].offer == offer) + { + if (strcmp(mimeType, "text/plain;charset=utf-8") == 0) + _glfw.wl.offers[i].text_plain_utf8 = GLFW_TRUE; + else if (strcmp(mimeType, "text/uri-list") == 0) + _glfw.wl.offers[i].text_uri_list = GLFW_TRUE; + + break; + } + } +} + +static const struct wl_data_offer_listener dataOfferListener = +{ + dataOfferHandleOffer +}; + +static void dataDeviceHandleDataOffer(void* userData, + struct wl_data_device* device, + struct wl_data_offer* offer) +{ + _GLFWofferWayland* offers = + realloc(_glfw.wl.offers, _glfw.wl.offerCount + 1); + if (!offers) + { + _glfwInputError(GLFW_OUT_OF_MEMORY, NULL); + return; + } + + _glfw.wl.offers = offers; + _glfw.wl.offerCount++; + + _glfw.wl.offers[_glfw.wl.offerCount - 1] = (_GLFWofferWayland) { offer }; + wl_data_offer_add_listener(offer, &dataOfferListener, NULL); +} + +static void dataDeviceHandleEnter(void* userData, + struct wl_data_device* device, + uint32_t serial, + struct wl_surface* surface, + wl_fixed_t x, + wl_fixed_t y, + struct wl_data_offer* offer) +{ + if (_glfw.wl.dragOffer) + { + wl_data_offer_destroy(_glfw.wl.dragOffer); + _glfw.wl.dragOffer = NULL; + _glfw.wl.dragFocus = NULL; + } + + for (unsigned int i = 0; i < _glfw.wl.offerCount; i++) + { + if (_glfw.wl.offers[i].offer == offer) + { + _GLFWwindow* window = NULL; + + if (surface) + window = wl_surface_get_user_data(surface); + + if (window && _glfw.wl.offers[i].text_uri_list) + { + _glfw.wl.dragOffer = offer; + _glfw.wl.dragFocus = window; + _glfw.wl.dragSerial = serial; + } + + _glfw.wl.offers[i] = _glfw.wl.offers[_glfw.wl.offerCount - 1]; + _glfw.wl.offerCount--; + break; + } + } + + if (_glfw.wl.dragOffer) + wl_data_offer_accept(offer, serial, "text/uri-list"); + else + { + wl_data_offer_accept(offer, serial, NULL); + wl_data_offer_destroy(offer); + } +} + +static void dataDeviceHandleLeave(void* userData, + struct wl_data_device* device) +{ + if (_glfw.wl.dragOffer) + { + wl_data_offer_destroy(_glfw.wl.dragOffer); + _glfw.wl.dragOffer = NULL; + _glfw.wl.dragFocus = NULL; + } +} + +static void dataDeviceHandleMotion(void* userData, + struct wl_data_device* device, + uint32_t time, + wl_fixed_t x, + wl_fixed_t y) +{ +} + +static void dataDeviceHandleDrop(void* userData, + struct wl_data_device* device) +{ + if (!_glfw.wl.dragOffer) + return; + + char* string = readDataOfferAsString(_glfw.wl.dragOffer, "text/uri-list"); + if (string) + { + int count; + char** paths = _glfwParseUriList(string, &count); + if (paths) + _glfwInputDrop(_glfw.wl.dragFocus, count, (const char**) paths); + + for (int i = 0; i < count; i++) + free(paths[i]); + + free(paths); + } + + free(string); +} + +static void dataDeviceHandleSelection(void* userData, + struct wl_data_device* device, + struct wl_data_offer* offer) +{ + if (_glfw.wl.selectionOffer) + { + wl_data_offer_destroy(_glfw.wl.selectionOffer); + _glfw.wl.selectionOffer = NULL; + } + + for (unsigned int i = 0; i < _glfw.wl.offerCount; i++) + { + if (_glfw.wl.offers[i].offer == offer) + { + if (_glfw.wl.offers[i].text_plain_utf8) + _glfw.wl.selectionOffer = offer; + else + wl_data_offer_destroy(offer); + + _glfw.wl.offers[i] = _glfw.wl.offers[_glfw.wl.offerCount - 1]; + _glfw.wl.offerCount--; + break; + } + } +} + +const struct wl_data_device_listener dataDeviceListener = +{ + dataDeviceHandleDataOffer, + dataDeviceHandleEnter, + dataDeviceHandleLeave, + dataDeviceHandleMotion, + dataDeviceHandleDrop, + dataDeviceHandleSelection, +}; + +// Translates a GLFW standard cursor to a theme cursor name +// +static char *translateCursorShape(int shape) +{ + switch (shape) + { + case GLFW_ARROW_CURSOR: + return "left_ptr"; + case GLFW_IBEAM_CURSOR: + return "xterm"; + case GLFW_CROSSHAIR_CURSOR: + return "crosshair"; + case GLFW_HAND_CURSOR: + return "hand2"; + case GLFW_HRESIZE_CURSOR: + return "sb_h_double_arrow"; + case GLFW_VRESIZE_CURSOR: + return "sb_v_double_arrow"; + } + return NULL; +} + +void _glfwAddSeatListenerWayland(struct wl_seat* seat) +{ + wl_seat_add_listener(seat, &seatListener, NULL); +} + +void _glfwAddDataDeviceListenerWayland(struct wl_data_device* device) +{ + wl_data_device_add_listener(device, &dataDeviceListener, NULL); +} + + +////////////////////////////////////////////////////////////////////////// +////// GLFW platform API ////// +////////////////////////////////////////////////////////////////////////// + +int _glfwPlatformCreateWindow(_GLFWwindow* window, + const _GLFWwndconfig* wndconfig, + const _GLFWctxconfig* ctxconfig, + const _GLFWfbconfig* fbconfig) +{ + if (!createNativeSurface(window, wndconfig, fbconfig)) + return GLFW_FALSE; + + if (ctxconfig->client != GLFW_NO_API) + { + if (ctxconfig->source == GLFW_EGL_CONTEXT_API || + ctxconfig->source == GLFW_NATIVE_CONTEXT_API) + { + window->wl.egl.window = wl_egl_window_create(window->wl.surface, + wndconfig->width, + wndconfig->height); + if (!window->wl.egl.window) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to create EGL window"); + return GLFW_FALSE; + } + + if (!_glfwInitEGL()) + return GLFW_FALSE; + if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig)) + return GLFW_FALSE; + } + else if (ctxconfig->source == GLFW_OSMESA_CONTEXT_API) + { + if (!_glfwInitOSMesa()) + return GLFW_FALSE; + if (!_glfwCreateContextOSMesa(window, ctxconfig, fbconfig)) + return GLFW_FALSE; + } + + if (!_glfwRefreshContextAttribs(window, ctxconfig)) + return GLFW_FALSE; + } + + if (window->monitor || wndconfig->visible) + { + if (!createShellObjects(window)) + return GLFW_FALSE; + } + + return GLFW_TRUE; +} + +void _glfwPlatformDestroyWindow(_GLFWwindow* window) +{ + if (window == _glfw.wl.pointerFocus) + { + _glfw.wl.pointerFocus = NULL; + _glfwInputCursorEnter(window, GLFW_FALSE); + } + if (window == _glfw.wl.keyboardFocus) + { + _glfw.wl.keyboardFocus = NULL; + _glfwInputWindowFocus(window, GLFW_FALSE); + } + + if (window->wl.idleInhibitor) + zwp_idle_inhibitor_v1_destroy(window->wl.idleInhibitor); + + if (window->context.destroy) + window->context.destroy(window); + + destroyShellObjects(window); + + if (window->wl.decorations.buffer) + wl_buffer_destroy(window->wl.decorations.buffer); + + if (window->wl.egl.window) + wl_egl_window_destroy(window->wl.egl.window); + + if (window->wl.surface) + wl_surface_destroy(window->wl.surface); + + free(window->wl.title); + free(window->wl.monitors); +} + +void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title) +{ + if (window->wl.title) + free(window->wl.title); + window->wl.title = _glfw_strdup(title); + if (window->wl.xdg.toplevel) + xdg_toplevel_set_title(window->wl.xdg.toplevel, title); +} + +void _glfwPlatformSetWindowIcon(_GLFWwindow* window, + int count, const GLFWimage* images) +{ + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Setting window icon not supported"); +} + +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) +{ + if (window->monitor) + { + // Video mode setting is not available on Wayland + } + else + { + window->wl.width = width; + window->wl.height = height; + resizeWindow(window); + } +} + +void _glfwPlatformSetWindowSizeLimits(_GLFWwindow* window, + int minwidth, int minheight, + int maxwidth, int maxheight) +{ + if (window->wl.xdg.toplevel) + { + if (minwidth == GLFW_DONT_CARE || minheight == GLFW_DONT_CARE) + minwidth = minheight = 0; + else + { + if (window->wl.decorations.top.surface) + { + minwidth += GLFW_BORDER_SIZE * 2; + minheight += GLFW_CAPTION_HEIGHT + GLFW_BORDER_SIZE; + } + } + + if (maxwidth == GLFW_DONT_CARE || maxheight == GLFW_DONT_CARE) + maxwidth = maxheight = 0; + else + { + if (window->wl.decorations.top.surface) + { + maxwidth += GLFW_BORDER_SIZE * 2; + maxheight += GLFW_CAPTION_HEIGHT + GLFW_BORDER_SIZE; + } + } + + xdg_toplevel_set_min_size(window->wl.xdg.toplevel, minwidth, minheight); + xdg_toplevel_set_max_size(window->wl.xdg.toplevel, maxwidth, maxheight); + wl_surface_commit(window->wl.surface); + } +} + +void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window, + int numer, int denom) +{ + if (window->wl.maximized || window->wl.fullscreen) + return; + + if (numer != GLFW_DONT_CARE && denom != GLFW_DONT_CARE) + { + const float aspectRatio = (float) window->wl.width / (float) window->wl.height; + const float targetRatio = (float) numer / (float) denom; + if (aspectRatio < targetRatio) + window->wl.height = window->wl.width / targetRatio; + else if (aspectRatio > targetRatio) + window->wl.width = window->wl.height * targetRatio; + + resizeWindow(window); + } +} + +void _glfwPlatformGetFramebufferSize(_GLFWwindow* window, + int* width, int* height) +{ + _glfwPlatformGetWindowSize(window, width, height); + if (width) + *width *= window->wl.scale; + if (height) + *height *= window->wl.scale; +} + +void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window, + int* left, int* top, + int* right, int* bottom) +{ + if (window->decorated && !window->monitor && window->wl.decorations.top.surface) + { + if (top) + *top = GLFW_CAPTION_HEIGHT; + if (left) + *left = GLFW_BORDER_SIZE; + if (right) + *right = GLFW_BORDER_SIZE; + if (bottom) + *bottom = GLFW_BORDER_SIZE; + } +} + +void _glfwPlatformGetWindowContentScale(_GLFWwindow* window, + float* xscale, float* yscale) +{ + if (xscale) + *xscale = (float) window->wl.scale; + if (yscale) + *yscale = (float) window->wl.scale; +} + +void _glfwPlatformIconifyWindow(_GLFWwindow* window) +{ + if (window->wl.xdg.toplevel) + xdg_toplevel_set_minimized(window->wl.xdg.toplevel); +} + +void _glfwPlatformRestoreWindow(_GLFWwindow* window) +{ + if (window->monitor) + { + // There is no way to unset minimized, or even to know if we are + // minimized, so there is nothing to do here. + } + else + { + // We assume we are not minimized and act only on maximization + + if (window->wl.maximized) + { + if (window->wl.xdg.toplevel) + xdg_toplevel_unset_maximized(window->wl.xdg.toplevel); + else + window->wl.maximized = GLFW_FALSE; + } + } +} + +void _glfwPlatformMaximizeWindow(_GLFWwindow* window) +{ + if (window->wl.xdg.toplevel) + xdg_toplevel_set_maximized(window->wl.xdg.toplevel); + else + window->wl.maximized = GLFW_TRUE; +} + +void _glfwPlatformShowWindow(_GLFWwindow* window) +{ + if (!window->wl.xdg.toplevel) + { + // NOTE: The XDG/shell surface is created here so command-line applications + // with off-screen windows do not appear in for example the Unity dock + createShellObjects(window); + } +} + +void _glfwPlatformHideWindow(_GLFWwindow* window) +{ + if (window->wl.visible) + { + window->wl.visible = GLFW_FALSE; + destroyShellObjects(window); + + wl_surface_attach(window->wl.surface, NULL, 0, 0); + wl_surface_commit(window->wl.surface); + } +} + +void _glfwPlatformRequestWindowAttention(_GLFWwindow* window) +{ + // TODO + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Window attention request not implemented yet"); +} + +void _glfwPlatformFocusWindow(_GLFWwindow* window) +{ + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Focusing a window requires user interaction"); +} + +void _glfwPlatformSetWindowMonitor(_GLFWwindow* window, + _GLFWmonitor* monitor, + int xpos, int ypos, + int width, int height, + int refreshRate) +{ + if (window->monitor == monitor) + { + if (!monitor) + _glfwPlatformSetWindowSize(window, width, height); + + return; + } + + if (window->monitor) + releaseMonitor(window); + + _glfwInputWindowMonitor(window, monitor); + + if (window->monitor) + acquireMonitor(window); + else + _glfwPlatformSetWindowSize(window, width, height); +} + +int _glfwPlatformWindowFocused(_GLFWwindow* window) +{ + return _glfw.wl.keyboardFocus == window; +} + +int _glfwPlatformWindowIconified(_GLFWwindow* window) +{ + // xdg-shell doesn’t give any way to request whether a surface is iconified + return GLFW_FALSE; +} + +int _glfwPlatformWindowVisible(_GLFWwindow* window) +{ + return window->wl.visible; +} + +int _glfwPlatformWindowMaximized(_GLFWwindow* window) +{ + return window->wl.maximized; +} + +int _glfwPlatformWindowHovered(_GLFWwindow* window) +{ + return window->wl.hovered; +} + +int _glfwPlatformFramebufferTransparent(_GLFWwindow* window) +{ + return window->wl.transparent; +} + +void _glfwPlatformSetWindowResizable(_GLFWwindow* window, GLFWbool enabled) +{ + // TODO + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Window attribute setting not implemented yet"); +} + +void _glfwPlatformSetWindowDecorated(_GLFWwindow* window, GLFWbool enabled) +{ + if (window->wl.xdg.decoration) + { + uint32_t mode; + + if (enabled) + mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE; + else + mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE; + + zxdg_toplevel_decoration_v1_set_mode(window->wl.xdg.decoration, mode); + } + else + { + if (enabled) + createFallbackDecorations(window); + else + destroyFallbackDecorations(window); + } +} + +void _glfwPlatformSetWindowFloating(_GLFWwindow* window, GLFWbool enabled) +{ + // TODO + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Window attribute setting not implemented yet"); +} + +float _glfwPlatformGetWindowOpacity(_GLFWwindow* window) +{ + return 1.f; +} + +void _glfwPlatformSetWindowOpacity(_GLFWwindow* window, float opacity) +{ +} + +void _glfwPlatformSetRawMouseMotion(_GLFWwindow* window, GLFWbool enabled) +{ + // This is handled in relativePointerHandleRelativeMotion +} + +GLFWbool _glfwPlatformRawMouseMotionSupported(void) +{ + return GLFW_TRUE; +} + +void _glfwPlatformPollEvents(void) +{ + double timeout = 0.0; + handleEvents(&timeout); +} + +void _glfwPlatformWaitEvents(void) +{ + handleEvents(NULL); +} + +void _glfwPlatformWaitEventsTimeout(double timeout) +{ + handleEvents(&timeout); +} + +void _glfwPlatformPostEmptyEvent(void) +{ + wl_display_sync(_glfw.wl.display); + flushDisplay(); +} + +void _glfwPlatformGetCursorPos(_GLFWwindow* window, double* xpos, double* ypos) +{ + if (xpos) + *xpos = window->wl.cursorPosX; + if (ypos) + *ypos = window->wl.cursorPosY; +} + +static GLFWbool isPointerLocked(_GLFWwindow* window); + +void _glfwPlatformSetCursorPos(_GLFWwindow* window, double x, double y) +{ + if (isPointerLocked(window)) + { + zwp_locked_pointer_v1_set_cursor_position_hint( + window->wl.pointerLock.lockedPointer, + wl_fixed_from_double(x), wl_fixed_from_double(y)); + } +} + +void _glfwPlatformSetCursorMode(_GLFWwindow* window, int mode) +{ + _glfwPlatformSetCursor(window, window->wl.currentCursor); +} + +const char* _glfwPlatformGetScancodeName(int scancode) +{ + if (scancode < 0 || scancode > 255 || + _glfw.wl.keycodes[scancode] == GLFW_KEY_UNKNOWN) + { + _glfwInputError(GLFW_INVALID_VALUE, + "Wayland: Invalid scancode %i", + scancode); + return NULL; + } + + const int key = _glfw.wl.keycodes[scancode]; + const xkb_keycode_t keycode = scancode + 8; + const xkb_layout_index_t layout = + xkb_state_key_get_layout(_glfw.wl.xkb.state, keycode); + if (layout == XKB_LAYOUT_INVALID) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to retrieve layout for key name"); + return NULL; + } + + const xkb_keysym_t* keysyms = NULL; + xkb_keymap_key_get_syms_by_level(_glfw.wl.xkb.keymap, + keycode, + layout, + 0, + &keysyms); + if (keysyms == NULL) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to retrieve keysym for key name"); + return NULL; + } + + const uint32_t codepoint = _glfwKeySym2Unicode(keysyms[0]); + if (codepoint == GLFW_INVALID_CODEPOINT) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to retrieve codepoint for key name"); + return NULL; + } + + const size_t count = _glfwEncodeUTF8(_glfw.wl.keynames[key], codepoint); + if (count == 0) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to encode codepoint for key name"); + return NULL; + } + + _glfw.wl.keynames[key][count] = '\0'; + return _glfw.wl.keynames[key]; +} + +int _glfwPlatformGetKeyScancode(int key) +{ + return _glfw.wl.scancodes[key]; +} + +int _glfwPlatformCreateCursor(_GLFWcursor* cursor, + const GLFWimage* image, + int xhot, int yhot) +{ + cursor->wl.buffer = createShmBuffer(image); + if (!cursor->wl.buffer) + return GLFW_FALSE; + + cursor->wl.width = image->width; + cursor->wl.height = image->height; + cursor->wl.xhot = xhot; + cursor->wl.yhot = yhot; + return GLFW_TRUE; +} + +int _glfwPlatformCreateStandardCursor(_GLFWcursor* cursor, int shape) +{ + struct wl_cursor* standardCursor; + + standardCursor = wl_cursor_theme_get_cursor(_glfw.wl.cursorTheme, + translateCursorShape(shape)); + if (!standardCursor) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Standard cursor \"%s\" not found", + translateCursorShape(shape)); + return GLFW_FALSE; + } + + cursor->wl.cursor = standardCursor; + cursor->wl.currentImage = 0; + + if (_glfw.wl.cursorThemeHiDPI) + { + standardCursor = wl_cursor_theme_get_cursor(_glfw.wl.cursorThemeHiDPI, + translateCursorShape(shape)); + cursor->wl.cursorHiDPI = standardCursor; + } + + return GLFW_TRUE; +} + +void _glfwPlatformDestroyCursor(_GLFWcursor* cursor) +{ + // If it's a standard cursor we don't need to do anything here + if (cursor->wl.cursor) + return; + + if (cursor->wl.buffer) + wl_buffer_destroy(cursor->wl.buffer); +} + +static void relativePointerHandleRelativeMotion(void* userData, + struct zwp_relative_pointer_v1* pointer, + uint32_t timeHi, + uint32_t timeLo, + wl_fixed_t dx, + wl_fixed_t dy, + wl_fixed_t dxUnaccel, + wl_fixed_t dyUnaccel) +{ + _GLFWwindow* window = userData; + double xpos = window->virtualCursorPosX; + double ypos = window->virtualCursorPosY; + + if (window->cursorMode != GLFW_CURSOR_DISABLED) + return; + + if (window->rawMouseMotion) + { + xpos += wl_fixed_to_double(dxUnaccel); + ypos += wl_fixed_to_double(dyUnaccel); + } + else + { + xpos += wl_fixed_to_double(dx); + ypos += wl_fixed_to_double(dy); + } + + _glfwInputCursorPos(window, xpos, ypos); +} + +static const struct zwp_relative_pointer_v1_listener relativePointerListener = +{ + relativePointerHandleRelativeMotion +}; + +static void lockedPointerHandleLocked(void* userData, + struct zwp_locked_pointer_v1* lockedPointer) +{ +} + +static void unlockPointer(_GLFWwindow* window) +{ + struct zwp_relative_pointer_v1* relativePointer = + window->wl.pointerLock.relativePointer; + struct zwp_locked_pointer_v1* lockedPointer = + window->wl.pointerLock.lockedPointer; + + zwp_relative_pointer_v1_destroy(relativePointer); + zwp_locked_pointer_v1_destroy(lockedPointer); + + window->wl.pointerLock.relativePointer = NULL; + window->wl.pointerLock.lockedPointer = NULL; +} + +static void lockPointer(_GLFWwindow* window); + +static void lockedPointerHandleUnlocked(void* userData, + struct zwp_locked_pointer_v1* lockedPointer) +{ +} + +static const struct zwp_locked_pointer_v1_listener lockedPointerListener = +{ + lockedPointerHandleLocked, + lockedPointerHandleUnlocked +}; + +static void lockPointer(_GLFWwindow* window) +{ + struct zwp_relative_pointer_v1* relativePointer; + struct zwp_locked_pointer_v1* lockedPointer; + + if (!_glfw.wl.relativePointerManager) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: no relative pointer manager"); + return; + } + + relativePointer = + zwp_relative_pointer_manager_v1_get_relative_pointer( + _glfw.wl.relativePointerManager, + _glfw.wl.pointer); + zwp_relative_pointer_v1_add_listener(relativePointer, + &relativePointerListener, + window); + + lockedPointer = + zwp_pointer_constraints_v1_lock_pointer( + _glfw.wl.pointerConstraints, + window->wl.surface, + _glfw.wl.pointer, + NULL, + ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT); + zwp_locked_pointer_v1_add_listener(lockedPointer, + &lockedPointerListener, + window); + + window->wl.pointerLock.relativePointer = relativePointer; + window->wl.pointerLock.lockedPointer = lockedPointer; + + wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerEnterSerial, + NULL, 0, 0); +} + +static GLFWbool isPointerLocked(_GLFWwindow* window) +{ + return window->wl.pointerLock.lockedPointer != NULL; +} + +void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor) +{ + struct wl_cursor* defaultCursor; + struct wl_cursor* defaultCursorHiDPI = NULL; + + 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 || window->wl.decorations.focus != mainWindow) + return; + + // Unlock possible pointer lock if no longer disabled. + if (window->cursorMode != GLFW_CURSOR_DISABLED && isPointerLocked(window)) + unlockPointer(window); + + if (window->cursorMode == GLFW_CURSOR_NORMAL) + { + if (cursor) + setCursorImage(window, &cursor->wl); + else + { + defaultCursor = wl_cursor_theme_get_cursor(_glfw.wl.cursorTheme, + "left_ptr"); + if (!defaultCursor) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Standard cursor not found"); + return; + } + if (_glfw.wl.cursorThemeHiDPI) + defaultCursorHiDPI = + wl_cursor_theme_get_cursor(_glfw.wl.cursorThemeHiDPI, + "left_ptr"); + _GLFWcursorWayland cursorWayland = { + defaultCursor, + defaultCursorHiDPI, + NULL, + 0, 0, + 0, 0, + 0 + }; + setCursorImage(window, &cursorWayland); + } + } + else if (window->cursorMode == GLFW_CURSOR_DISABLED) + { + if (!isPointerLocked(window)) + lockPointer(window); + } + else if (window->cursorMode == GLFW_CURSOR_HIDDEN) + { + wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerEnterSerial, NULL, 0, 0); + } +} + +static void dataSourceHandleTarget(void* userData, + struct wl_data_source* source, + const char* mimeType) +{ + if (_glfw.wl.selectionSource != source) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Unknown clipboard data source"); + return; + } +} + +static void dataSourceHandleSend(void* userData, + struct wl_data_source* source, + const char* mimeType, + int fd) +{ + // Ignore it if this is an outdated or invalid request + if (_glfw.wl.selectionSource != source || + strcmp(mimeType, "text/plain;charset=utf-8") != 0) + { + close(fd); + return; + } + + char* string = _glfw.wl.clipboardString; + size_t length = strlen(string); + + while (length > 0) + { + const ssize_t result = write(fd, string, length); + if (result == -1) + { + if (errno == EINTR) + continue; + + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Error while writing the clipboard: %s", + strerror(errno)); + break; + } + + length -= result; + string += result; + } + + close(fd); +} + +static void dataSourceHandleCancelled(void* userData, + struct wl_data_source* source) +{ + wl_data_source_destroy(source); + + if (_glfw.wl.selectionSource != source) + return; + + _glfw.wl.selectionSource = NULL; +} + +static const struct wl_data_source_listener dataSourceListener = +{ + dataSourceHandleTarget, + dataSourceHandleSend, + dataSourceHandleCancelled, +}; + +void _glfwPlatformSetClipboardString(const char* string) +{ + if (_glfw.wl.selectionSource) + { + wl_data_source_destroy(_glfw.wl.selectionSource); + _glfw.wl.selectionSource = NULL; + } + + char* copy = _glfw_strdup(string); + if (!copy) + { + _glfwInputError(GLFW_OUT_OF_MEMORY, NULL); + return; + } + + free(_glfw.wl.clipboardString); + _glfw.wl.clipboardString = copy; + + _glfw.wl.selectionSource = + wl_data_device_manager_create_data_source(_glfw.wl.dataDeviceManager); + if (!_glfw.wl.selectionSource) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to create clipboard data source"); + return; + } + wl_data_source_add_listener(_glfw.wl.selectionSource, + &dataSourceListener, + NULL); + wl_data_source_offer(_glfw.wl.selectionSource, "text/plain;charset=utf-8"); + wl_data_device_set_selection(_glfw.wl.dataDevice, + _glfw.wl.selectionSource, + _glfw.wl.serial); +} + +const char* _glfwPlatformGetClipboardString(void) +{ + if (!_glfw.wl.selectionOffer) + { + _glfwInputError(GLFW_FORMAT_UNAVAILABLE, + "Wayland: No clipboard data available"); + return NULL; + } + + if (_glfw.wl.selectionSource) + return _glfw.wl.clipboardString; + + free(_glfw.wl.clipboardString); + _glfw.wl.clipboardString = + readDataOfferAsString(_glfw.wl.selectionOffer, "text/plain;charset=utf-8"); + return _glfw.wl.clipboardString; +} + +void _glfwPlatformGetRequiredInstanceExtensions(char** extensions) +{ + if (!_glfw.vk.KHR_surface || !_glfw.vk.KHR_wayland_surface) + return; + + extensions[0] = "VK_KHR_surface"; + extensions[1] = "VK_KHR_wayland_surface"; +} + +int _glfwPlatformGetPhysicalDevicePresentationSupport(VkInstance instance, + VkPhysicalDevice device, + uint32_t queuefamily) +{ + PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR + vkGetPhysicalDeviceWaylandPresentationSupportKHR = + (PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR) + vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceWaylandPresentationSupportKHR"); + if (!vkGetPhysicalDeviceWaylandPresentationSupportKHR) + { + _glfwInputError(GLFW_API_UNAVAILABLE, + "Wayland: Vulkan instance missing VK_KHR_wayland_surface extension"); + return VK_NULL_HANDLE; + } + + return vkGetPhysicalDeviceWaylandPresentationSupportKHR(device, + queuefamily, + _glfw.wl.display); +} + +VkResult _glfwPlatformCreateWindowSurface(VkInstance instance, + _GLFWwindow* window, + const VkAllocationCallbacks* allocator, + VkSurfaceKHR* surface) +{ + VkResult err; + VkWaylandSurfaceCreateInfoKHR sci; + PFN_vkCreateWaylandSurfaceKHR vkCreateWaylandSurfaceKHR; + + vkCreateWaylandSurfaceKHR = (PFN_vkCreateWaylandSurfaceKHR) + vkGetInstanceProcAddr(instance, "vkCreateWaylandSurfaceKHR"); + if (!vkCreateWaylandSurfaceKHR) + { + _glfwInputError(GLFW_API_UNAVAILABLE, + "Wayland: Vulkan instance missing VK_KHR_wayland_surface extension"); + return VK_ERROR_EXTENSION_NOT_PRESENT; + } + + memset(&sci, 0, sizeof(sci)); + sci.sType = VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR; + sci.display = _glfw.wl.display; + sci.surface = window->wl.surface; + + err = vkCreateWaylandSurfaceKHR(instance, &sci, allocator, surface); + if (err) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to create Vulkan surface: %s", + _glfwGetVulkanResultString(err)); + } + + return err; +} + + +////////////////////////////////////////////////////////////////////////// +////// GLFW native API ////// +////////////////////////////////////////////////////////////////////////// + +GLFWAPI struct wl_display* glfwGetWaylandDisplay(void) +{ + _GLFW_REQUIRE_INIT_OR_RETURN(NULL); + return _glfw.wl.display; +} + +GLFWAPI struct wl_surface* glfwGetWaylandWindow(GLFWwindow* handle) +{ + _GLFWwindow* window = (_GLFWwindow*) handle; + _GLFW_REQUIRE_INIT_OR_RETURN(NULL); + return window->wl.surface; +} + |