From 64221c6da1a8783ba1e614a1c821b585b1e70ab8 Mon Sep 17 00:00:00 2001 From: emersion Date: Mon, 20 Nov 2017 21:26:20 +0100 Subject: Use wl_list for touch points in examples/ --- examples/pointer.c | 33 ++++++++++++++++++--------------- examples/touch.c | 29 ++++++++++++++--------------- 2 files changed, 32 insertions(+), 30 deletions(-) (limited to 'examples') diff --git a/examples/pointer.c b/examples/pointer.c index 8fafb3d6..f75e1bce 100644 --- a/examples/pointer.c +++ b/examples/pointer.c @@ -46,7 +46,7 @@ struct sample_state { struct wl_listener touch_up; struct wl_listener touch_down; struct wl_listener touch_cancel; - struct wlr_list *touch_points; + struct wl_list touch_points; struct wl_listener tablet_tool_axis; struct wl_listener tablet_tool_proxmity; @@ -57,22 +57,25 @@ struct sample_state { struct touch_point { int32_t touch_id; double x, y; + struct wl_list link; }; static void warp_to_touch(struct sample_state *sample, struct wlr_input_device *dev) { - if (sample->touch_points->length == 0) { + if (wl_list_empty(&sample->touch_points)) { return; } double x = 0, y = 0; - for (size_t i = 0; i < sample->touch_points->length; ++i) { - struct touch_point *point = sample->touch_points->items[i]; + size_t n = 0; + struct touch_point *point; + wl_list_for_each(point, &sample->touch_points, link) { x += point->x; y += point->y; + n++; } - x /= sample->touch_points->length; - y /= sample->touch_points->length; + x /= n; + y /= n; wlr_cursor_warp_absolute(sample->cursor, dev, x, y); } @@ -197,10 +200,11 @@ static void handle_cursor_axis(struct wl_listener *listener, void *data) { static void handle_touch_up(struct wl_listener *listener, void *data) { struct sample_state *sample = wl_container_of(listener, sample, touch_up); struct wlr_event_touch_up *event = data; - for (size_t i = 0; i < sample->touch_points->length; ++i) { - struct touch_point *point = sample->touch_points->items[i]; + + struct touch_point *point, *tmp; + wl_list_for_each_safe(point, tmp, &sample->touch_points, link) { if (point->touch_id == event->touch_id) { - wlr_list_del(sample->touch_points, i); + wl_list_remove(&point->link); break; } } @@ -215,9 +219,7 @@ static void handle_touch_down(struct wl_listener *listener, void *data) { point->touch_id = event->touch_id; point->x = event->x_mm / event->width_mm; point->y = event->y_mm / event->height_mm; - if (wlr_list_add(sample->touch_points, point) == -1) { - free(point); - } + wl_list_insert(&sample->touch_points, &point->link); warp_to_touch(sample, event->device); } @@ -226,8 +228,9 @@ static void handle_touch_motion(struct wl_listener *listener, void *data) { struct sample_state *sample = wl_container_of(listener, sample, touch_motion); struct wlr_event_touch_motion *event = data; - for (size_t i = 0; i < sample->touch_points->length; ++i) { - struct touch_point *point = sample->touch_points->items[i]; + + struct touch_point *point; + wl_list_for_each(point, &sample->touch_points, link) { if (point->touch_id == event->touch_id) { point->x = event->x_mm / event->width_mm; point->y = event->y_mm / event->height_mm; @@ -257,7 +260,6 @@ int main(int argc, char *argv[]) { struct sample_state state = { .default_color = { 0.25f, 0.25f, 0.25f, 1 }, .clear_color = { 0.25f, 0.25f, 0.25f, 1 }, - .touch_points = wlr_list_create(), }; state.config = parse_args(argc, argv); @@ -266,6 +268,7 @@ int main(int argc, char *argv[]) { wlr_cursor_attach_output_layout(state.cursor, state.layout); wlr_cursor_map_to_region(state.cursor, state.config->cursor.mapped_box); wl_list_init(&state.devices); + wl_list_init(&state.touch_points); // pointer events wl_signal_add(&state.cursor->events.motion, &state.cursor_motion); diff --git a/examples/touch.c b/examples/touch.c index d1891525..f18b5d26 100644 --- a/examples/touch.c +++ b/examples/touch.c @@ -24,12 +24,13 @@ struct sample_state { struct wlr_renderer *renderer; struct wlr_texture *cat_texture; - struct wlr_list *touch_points; + struct wl_list touch_points; }; struct touch_point { int32_t touch_id; double x, y; + struct wl_list link; }; static void handle_output_frame(struct output_state *output, struct timespec *ts) { @@ -44,14 +45,14 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts wlr_renderer_begin(sample->renderer, wlr_output); float matrix[16]; - for (size_t i = 0; i < sample->touch_points->length; ++i) { - struct touch_point *p = sample->touch_points->items[i]; + struct touch_point *p; + wl_list_for_each(p, &sample->touch_points, link) { wlr_texture_get_matrix(sample->cat_texture, &matrix, &wlr_output->transform_matrix, (int)(p->x * width) - sample->cat_texture->width / 2, (int)(p->y * height) - sample->cat_texture->height / 2); wlr_render_with_matrix(sample->renderer, - sample->cat_texture, &matrix); + sample->cat_texture, &matrix); } wlr_renderer_end(sample->renderer); @@ -65,17 +66,15 @@ static void handle_touch_down(struct touch_state *tstate, int32_t touch_id, point->touch_id = touch_id; point->x = x / width; point->y = y / height; - if (wlr_list_add(sample->touch_points, point) == -1) { - free(point); - } + wl_list_insert(&sample->touch_points, &point->link); } static void handle_touch_up(struct touch_state *tstate, int32_t touch_id) { struct sample_state *sample = tstate->compositor->data; - for (size_t i = 0; i < sample->touch_points->length; ++i) { - struct touch_point *point = sample->touch_points->items[i]; + struct touch_point *point, *tmp; + wl_list_for_each_safe(point, tmp, &sample->touch_points, link) { if (point->touch_id == touch_id) { - wlr_list_del(sample->touch_points, i); + wl_list_remove(&point->link); break; } } @@ -84,8 +83,8 @@ static void handle_touch_up(struct touch_state *tstate, int32_t touch_id) { static void handle_touch_motion(struct touch_state *tstate, int32_t touch_id, double x, double y, double width, double height) { struct sample_state *sample = tstate->compositor->data; - for (size_t i = 0; i < sample->touch_points->length; ++i) { - struct touch_point *point = sample->touch_points->items[i]; + struct touch_point *point; + wl_list_for_each(point, &sample->touch_points, link) { if (point->touch_id == touch_id) { point->x = x / width; point->y = y / height; @@ -95,9 +94,9 @@ static void handle_touch_motion(struct touch_state *tstate, int32_t touch_id, } int main(int argc, char *argv[]) { - struct sample_state state = { - .touch_points = wlr_list_create() - }; + struct sample_state state; + wl_list_init(&state.touch_points); + struct compositor_state compositor = { 0, .data = &state, .output_frame_cb = handle_output_frame, -- cgit v1.2.3