From 583654405fc48c334de523197c583e53199fb929 Mon Sep 17 00:00:00 2001 From: Timidger Date: Sun, 29 Apr 2018 17:32:00 -0400 Subject: [PATCH] Made output layout example standalone --- examples/output-layout.c | 216 +++++++++++++++++++++++++++------------ 1 file changed, 150 insertions(+), 66 deletions(-) diff --git a/examples/output-layout.c b/examples/output-layout.c index b04e86b7..9c8db60a 100644 --- a/examples/output-layout.c +++ b/examples/output-layout.c @@ -1,4 +1,4 @@ -#define _POSIX_C_SOURCE 199309L +#define _POSIX_C_SOURCE 200112L #define _XOPEN_SOURCE 700 #include #include @@ -16,16 +16,17 @@ #include #include #include +#include #include #include #include #include -#include "support/cat.h" -#include "support/config.h" -#include "support/shared.h" +#include "cat.h" struct sample_state { - struct example_config *config; + struct wl_display *display; + struct wl_listener new_output; + struct wl_listener new_input; struct wlr_renderer *renderer; struct wlr_texture *cat_texture; struct wlr_output_layout *layout; @@ -34,6 +35,20 @@ struct sample_state { struct timespec ts_last; }; +struct sample_output { + struct sample_state *sample; + struct wlr_output *output; + struct wl_listener frame; + struct wl_listener destroy; +}; + +struct sample_keyboard { + struct sample_state *sample; + struct wlr_input_device *device; + struct wl_listener key; + struct wl_listener destroy; +}; + static void animate_cat(struct sample_state *sample, struct wlr_output *output) { struct timespec ts; @@ -93,10 +108,12 @@ static void animate_cat(struct sample_state *sample, sample->ts_last = ts; } -static void handle_output_frame(struct output_state *output, - struct timespec *ts) { - struct compositor_state *state = output->compositor; - struct sample_state *sample = state->data; +void output_frame_notify(struct wl_listener *listener, void *data) { + struct sample_output *output = wl_container_of(listener, output, frame); + struct sample_state *sample = output->sample; + struct timespec ts; + clock_gettime(CLOCK_MONOTONIC, &ts); + struct wlr_output *wlr_output = output->output; wlr_output_make_current(wlr_output, NULL); @@ -124,94 +141,161 @@ static void handle_output_frame(struct output_state *output, wlr_output_swap_buffers(wlr_output, NULL, NULL); } -static void handle_output_add(struct output_state *ostate) { - struct sample_state *sample = ostate->compositor->data; +static void update_velocities(struct sample_state *sample, + float x_diff, float y_diff) { + sample->x_vel += x_diff; + sample->y_vel += y_diff; +} - struct output_config *o_config = - example_config_get_output(sample->config, ostate->output); +void output_remove_notify(struct wl_listener *listener, void *data) { + struct sample_output *sample_output = wl_container_of(listener, sample_output, destroy); + struct sample_state *sample = sample_output->sample; + wlr_output_layout_remove(sample->layout, sample_output->output); + wl_list_remove(&sample_output->frame.link); + wl_list_remove(&sample_output->destroy.link); + free(sample_output); +} - if (o_config) { - wlr_output_set_transform(ostate->output, o_config->transform); - wlr_output_layout_add(sample->layout, ostate->output, o_config->x, - o_config->y); - } else { - wlr_output_layout_add_auto(sample->layout, ostate->output); +void new_output_notify(struct wl_listener *listener, void *data) { + struct wlr_output *output = data; + struct sample_state *sample = wl_container_of(listener, sample, new_output); + struct sample_output *sample_output = calloc(1, sizeof(struct sample_output)); + if (wl_list_length(&output->modes) > 0) { + struct wlr_output_mode *mode = wl_container_of((&output->modes)->prev, mode, link); + wlr_output_set_mode(output, mode); } + wlr_output_layout_add_auto(sample->layout, output); + sample_output->output = output; + sample_output->sample = sample; + wl_signal_add(&output->events.frame, &sample_output->frame); + sample_output->frame.notify = output_frame_notify; + wl_signal_add(&output->events.destroy, &sample_output->destroy); + sample_output->destroy.notify = output_remove_notify; } -static void handle_output_remove(struct output_state *ostate) { - struct sample_state *sample = ostate->compositor->data; - wlr_output_layout_remove(sample->layout, ostate->output); +void keyboard_key_notify(struct wl_listener *listener, void *data) { + struct sample_keyboard *keyboard = wl_container_of(listener, keyboard, key); + struct sample_state *sample = keyboard->sample; + struct wlr_event_keyboard_key *event = data; + uint32_t keycode = event->keycode + 8; + const xkb_keysym_t *syms; + int nsyms = xkb_state_key_get_syms(keyboard->device->keyboard->xkb_state, + keycode, &syms); + for (int i = 0; i < nsyms; i++) { + xkb_keysym_t sym = syms[i]; + if (sym == XKB_KEY_Escape) { + wl_display_terminate(sample->display); + } + // NOTE: It may be better to simply refer to our key state during each frame + // and make this change in pixels/sec^2 + // Also, key repeat + int delta = 75; + if (event->state == WLR_KEY_PRESSED) { + switch (sym) { + case XKB_KEY_Left: + update_velocities(sample, -delta, 0); + break; + case XKB_KEY_Right: + update_velocities(sample, delta, 0); + break; + case XKB_KEY_Up: + update_velocities(sample, 0, -delta); + break; + case XKB_KEY_Down: + update_velocities(sample, 0, delta); + break; + } + } + } } -static void update_velocities(struct compositor_state *state, - float x_diff, float y_diff) { - struct sample_state *sample = state->data; - sample->x_vel += x_diff; - sample->y_vel += y_diff; +void keyboard_destroy_notify(struct wl_listener *listener, void *data) { + struct sample_keyboard *keyboard = wl_container_of(listener, keyboard, destroy); + wl_list_remove(&keyboard->destroy.link); + wl_list_remove(&keyboard->key.link); + free(keyboard); } -static void handle_keyboard_key(struct keyboard_state *kbstate, - uint32_t keycode, xkb_keysym_t sym, enum wlr_key_state key_state, - uint64_t time_usec) { - // NOTE: It may be better to simply refer to our key state during each frame - // and make this change in pixels/sec^2 - // Also, key repeat - int delta = 75; - if (key_state == WLR_KEY_PRESSED) { - switch (sym) { - case XKB_KEY_Left: - update_velocities(kbstate->compositor, -delta, 0); - break; - case XKB_KEY_Right: - update_velocities(kbstate->compositor, delta, 0); - break; - case XKB_KEY_Up: - update_velocities(kbstate->compositor, 0, -delta); - break; - case XKB_KEY_Down: - update_velocities(kbstate->compositor, 0, delta); - break; +void new_input_notify(struct wl_listener *listener, void *data) { + struct wlr_input_device *device = data; + struct sample_state *sample = wl_container_of(listener, sample, new_input); + struct sample_keyboard *keyboard; + struct xkb_rule_names rules; + struct xkb_context *context; + switch (device->type) { + case WLR_INPUT_DEVICE_KEYBOARD: + keyboard = calloc(1, sizeof(struct sample_keyboard)); + keyboard->device = device; + keyboard->sample = sample; + wl_signal_add(&device->events.destroy, &keyboard->destroy); + keyboard->destroy.notify = keyboard_destroy_notify; + wl_signal_add(&device->keyboard->events.key, &keyboard->key); + keyboard->key.notify = keyboard_key_notify; + memset(&rules, 0, sizeof(rules)); + rules.rules = getenv("XKB_DEFAULT_RULES"); + rules.model = getenv("XKB_DEFAULT_MODEL"); + rules.layout = getenv("XKB_DEFAULT_LAYOUT"); + rules.variant = getenv("XKB_DEFAULT_VARIANT"); + rules.options = getenv("XKB_DEFAULT_OPTIONS"); + context = xkb_context_new(XKB_CONTEXT_NO_FLAGS); + if (!context) { + wlr_log(L_ERROR, "Failed to create XKB context"); + exit(1); } + wlr_keyboard_set_keymap(device->keyboard, xkb_map_new_from_names(context, + &rules, XKB_KEYMAP_COMPILE_NO_FLAGS)); + xkb_context_unref(context); + break; + default: + break; } } + int main(int argc, char *argv[]) { wlr_log_init(L_DEBUG, NULL); - struct sample_state state = {0}; + struct wl_display *display = wl_display_create(); + struct sample_state state = { + .x_vel = 500, + .y_vel = 500, + .display = display, + }; - state.x_vel = 500; - state.y_vel = 500; state.layout = wlr_output_layout_create(); clock_gettime(CLOCK_MONOTONIC, &state.ts_last); - state.config = parse_args(argc, argv); + struct wlr_backend *wlr = wlr_backend_autocreate(display); + if (!wlr) { + exit(1); + } + + wl_signal_add(&wlr->events.new_output, &state.new_output); + state.new_output.notify = new_output_notify; + wl_signal_add(&wlr->events.new_input, &state.new_input); + state.new_input.notify = new_input_notify; - struct compositor_state compositor = { 0 }; - compositor.data = &state; - compositor.output_add_cb = handle_output_add; - compositor.output_remove_cb = handle_output_remove; - compositor.output_frame_cb = handle_output_frame; - compositor.keyboard_key_cb = handle_keyboard_key; - compositor_init(&compositor); + const char *socket = wl_display_add_socket_auto(display); + if (!socket) { + wlr_log_errno(L_ERROR, "Unable to open wayland socket"); + wlr_backend_destroy(wlr); + exit(1); + } + setenv("_WAYLAND_DISPLAY", socket, true); - state.renderer = wlr_backend_get_renderer(compositor.backend); + state.renderer = wlr_backend_get_renderer(wlr); state.cat_texture = wlr_texture_from_pixels(state.renderer, WL_SHM_FORMAT_ABGR8888, cat_tex.width * 4, cat_tex.width, cat_tex.height, cat_tex.pixel_data); - if (!wlr_backend_start(compositor.backend)) { + if (!wlr_backend_start(wlr)) { wlr_log(L_ERROR, "Failed to start backend"); - wlr_backend_destroy(compositor.backend); + wlr_backend_destroy(wlr); exit(1); } - wl_display_run(compositor.display); + wl_display_run(display); wlr_texture_destroy(state.cat_texture); wlr_renderer_destroy(state.renderer); - compositor_fini(&compositor); wlr_output_layout_destroy(state.layout); - - example_config_destroy(state.config); }