From 7be5dfecc0ce35c1481b2f0047de3dff0410900a Mon Sep 17 00:00:00 2001 From: Timidger Date: Fri, 20 Apr 2018 11:36:12 -0400 Subject: [PATCH] Made tablet standalone --- examples/tablet.c | 281 +++++++++++++++++++++++++++++++++++++--------- 1 file changed, 228 insertions(+), 53 deletions(-) diff --git a/examples/tablet.c b/examples/tablet.c index e8f90071..7b8abeb4 100644 --- a/examples/tablet.c +++ b/examples/tablet.c @@ -1,4 +1,4 @@ -#define _POSIX_C_SOURCE 199309L +#define _POSIX_C_SOURCE 200112L #define _XOPEN_SOURCE 500 #include #include @@ -15,13 +15,14 @@ #include #include #include +#include #include #include #include #include -#include "support/shared.h" struct sample_state { + struct wl_display *display; struct wlr_renderer *renderer; bool proximity, tap, button; double distance; @@ -33,12 +34,55 @@ struct sample_state { struct wl_list link; float tool_color[4]; float pad_color[4]; + struct timespec last_frame; + struct wl_listener new_output; + struct wl_listener new_input; + struct wl_list tablet_tools; + struct wl_list tablet_pads; }; -static void handle_output_frame(struct output_state *output, struct timespec *ts) { - struct compositor_state *state = output->compositor; - struct sample_state *sample = state->data; - struct wlr_output *wlr_output = output->output; +struct tablet_tool_state { + struct sample_state *sample; + struct wlr_input_device *device; + struct wl_listener destroy; + struct wl_listener axis; + struct wl_listener proximity; + struct wl_listener tip; + struct wl_listener button; + struct wl_list link; + void *data; +}; + +struct tablet_pad_state { + struct sample_state *sample; + struct wlr_input_device *device; + struct wl_listener destroy; + struct wl_listener button; + struct wl_listener ring; + struct wl_list link; + void *data; +}; + +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 output_frame_notify(struct wl_listener *listener, void *data) { + struct sample_output *sample_output = wl_container_of(listener, sample_output, frame); + struct sample_state *sample = sample_output->sample; + struct wlr_output *wlr_output = sample_output->output; + struct timespec now; + clock_gettime(CLOCK_MONOTONIC, &now); int32_t width, height; wlr_output_effective_resolution(wlr_output, &width, &height); @@ -87,11 +131,13 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts wlr_renderer_end(sample->renderer); wlr_output_swap_buffers(wlr_output, NULL, NULL); + sample->last_frame = now; } -static void handle_tool_axis(struct tablet_tool_state *tstate, - struct wlr_event_tablet_tool_axis *event) { - struct sample_state *sample = tstate->compositor->data; +static void tablet_tool_axis_notify(struct wl_listener *listener, void *data) { + struct tablet_tool_state *tstate = wl_container_of(listener, tstate, axis); + struct wlr_event_tablet_tool_axis *event = data; + struct sample_state *sample = tstate->sample; if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_X)) { sample->x = event->x; } @@ -112,21 +158,23 @@ static void handle_tool_axis(struct tablet_tool_state *tstate, } } -static void handle_tool_proximity(struct tablet_tool_state *tstate, - enum wlr_tablet_tool_proximity_state state) { - struct sample_state *sample = tstate->compositor->data; - sample->proximity = state == WLR_TABLET_TOOL_PROXIMITY_IN; +static void tablet_tool_proximity_notify(struct wl_listener *listener, void *data) { + struct tablet_tool_state *tstate = wl_container_of(listener, tstate, proximity); + struct wlr_event_tablet_tool_proximity *event = data; + struct sample_state *sample = tstate->sample; + sample->proximity = event->state == WLR_TABLET_TOOL_PROXIMITY_IN; } -static void handle_tool_button(struct tablet_tool_state *tstate, - uint32_t button, enum wlr_button_state state) { - struct sample_state *sample = tstate->compositor->data; - if (state == WLR_BUTTON_RELEASED) { +static void tablet_tool_button_notify(struct wl_listener *listener, void *data) { + struct tablet_tool_state *tstate = wl_container_of(listener, tstate, button); + struct wlr_event_tablet_tool_button *event = data; + struct sample_state *sample = tstate->sample; + if (event->state == WLR_BUTTON_RELEASED) { sample->button = false; } else { sample->button = true; for (size_t i = 0; i < 3; ++i) { - if (button % 3 == i) { + if (event->button % 3 == i) { sample->tool_color[i] = 0; } else { sample->tool_color[i] = 1; @@ -135,15 +183,16 @@ static void handle_tool_button(struct tablet_tool_state *tstate, } } -static void handle_pad_button(struct tablet_pad_state *pstate, - uint32_t button, enum wlr_button_state state) { - struct sample_state *sample = pstate->compositor->data; +static void tablet_pad_button_notify(struct wl_listener *listener, void *data) { + struct tablet_pad_state *pstate = wl_container_of(listener, pstate, button); + struct wlr_event_tablet_pad_button *event = data; + struct sample_state *sample = pstate->sample; float default_color[4] = { 0.5, 0.5, 0.5, 1.0 }; - if (state == WLR_BUTTON_RELEASED) { + if (event->state == WLR_BUTTON_RELEASED) { memcpy(sample->pad_color, default_color, sizeof(default_color)); } else { for (size_t i = 0; i < 3; ++i) { - if (button % 3 == i) { + if (event->button % 3 == i) { sample->pad_color[i] = 0; } else { sample->pad_color[i] = 1; @@ -152,56 +201,182 @@ static void handle_pad_button(struct tablet_pad_state *pstate, } } -static void handle_pad_ring(struct tablet_pad_state *pstate, - uint32_t ring, double position) { - struct sample_state *sample = pstate->compositor->data; - if (position != -1) { - sample->ring = -(position * (M_PI / 180.0)); +static void tablet_pad_ring_notify(struct wl_listener *listener, void *data) { + struct tablet_pad_state *pstate = wl_container_of(listener, pstate, ring); + struct wlr_event_tablet_pad_ring *event = data; + struct sample_state *sample = pstate->sample; + if (event->position != -1) { + sample->ring = -(event->position * (M_PI / 180.0)); + } +} + +static void tablet_tool_destroy_notify(struct wl_listener *listener, void *data) { + struct tablet_tool_state *tstate = wl_container_of(listener, tstate, destroy); + wl_list_remove(&tstate->link); + wl_list_remove(&tstate->destroy.link); + wl_list_remove(&tstate->axis.link); + wl_list_remove(&tstate->proximity.link); + wl_list_remove(&tstate->button.link); + free(tstate); +} + +static void tablet_pad_destroy_notify(struct wl_listener *listener, void *data) { + struct tablet_pad_state *pstate = wl_container_of(listener, pstate, destroy); + wl_list_remove(&pstate->link); + wl_list_remove(&pstate->destroy.link); + wl_list_remove(&pstate->ring.link); + wl_list_remove(&pstate->button.link); + free(pstate); +} + +void output_remove_notify(struct wl_listener *listener, void *data) { + struct sample_output *sample_output = wl_container_of(listener, sample_output, destroy); + wl_list_remove(&sample_output->frame.link); + wl_list_remove(&sample_output->destroy.link); + free(sample_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); + } + 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; +} + +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); + } } } -static void handle_input_add(struct compositor_state *cstate, - struct wlr_input_device *inputdev) { - struct sample_state *sample = cstate->data; - if (inputdev->type == WLR_INPUT_DEVICE_TABLET_TOOL) { - sample->width_mm = inputdev->width_mm == 0 ? - 20 : inputdev->width_mm; - sample->height_mm = inputdev->height_mm == 0 ? - 10 : inputdev->height_mm; +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); +} + +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; + struct tablet_tool_state *tstate; + struct tablet_pad_state *pstate; + 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; + case WLR_INPUT_DEVICE_TABLET_PAD: + pstate = calloc(sizeof(struct tablet_pad_state), 1); + pstate->device = device; + pstate->sample = sample; + pstate->destroy.notify = tablet_pad_destroy_notify; + wl_signal_add(&device->events.destroy, &pstate->destroy); + pstate->button.notify = tablet_pad_button_notify; + wl_signal_add(&device->tablet_pad->events.button, &pstate->button); + pstate->ring.notify = tablet_pad_ring_notify; + wl_signal_add(&device->tablet_pad->events.ring, &pstate->ring); + wl_list_insert(&sample->tablet_pads, &pstate->link); + break; + case WLR_INPUT_DEVICE_TABLET_TOOL: + sample->width_mm = device->width_mm == 0 ? + 20 : device->width_mm; + sample->height_mm = device->height_mm == 0 ? + 10 : device->height_mm; + + tstate = calloc(sizeof(struct tablet_tool_state), 1); + tstate->device = device; + tstate->sample = sample; + tstate->destroy.notify = tablet_tool_destroy_notify; + wl_signal_add(&device->events.destroy, &tstate->destroy); + tstate->axis.notify = tablet_tool_axis_notify; + wl_signal_add(&device->tablet_tool->events.axis, &tstate->axis); + tstate->proximity.notify = tablet_tool_proximity_notify; + wl_signal_add(&device->tablet_tool->events.proximity, &tstate->proximity); + tstate->button.notify = tablet_tool_button_notify; + wl_signal_add(&device->tablet_tool->events.button, &tstate->button); + wl_list_insert(&sample->tablet_tools, &tstate->link); + break; + default: + break; } } + int main(int argc, char *argv[]) { wlr_log_init(L_DEBUG, NULL); + struct wl_display *display = wl_display_create(); struct sample_state state = { + .display = display, .tool_color = { 1, 1, 1, 1 }, .pad_color = { 0.5, 0.5, 0.5, 1.0 } }; - struct compositor_state compositor = { - .data = &state, - .output_frame_cb = handle_output_frame, - .tool_axis_cb = handle_tool_axis, - .tool_proximity_cb = handle_tool_proximity, - .tool_button_cb = handle_tool_button, - .pad_button_cb = handle_pad_button, - .pad_ring_cb = handle_pad_ring, - .input_add_cb = handle_input_add, - 0 - }; - compositor_init(&compositor); + wl_list_init(&state.tablet_pads); + wl_list_init(&state.tablet_tools); + 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; + clock_gettime(CLOCK_MONOTONIC, &state.last_frame); - state.renderer = wlr_backend_get_renderer(compositor.backend); + state.renderer = wlr_backend_get_renderer(wlr); if (!state.renderer) { wlr_log(L_ERROR, "Could not start compositor, OOM"); exit(EXIT_FAILURE); } - 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_renderer_destroy(state.renderer); - compositor_fini(&compositor); + wl_display_destroy(display); }