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-rw-r--r--example/CMakeLists.txt13
-rw-r--r--example/pointer.c77
-rw-r--r--example/shared.c82
-rw-r--r--example/shared.h13
4 files changed, 174 insertions, 11 deletions
diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
index f659e5bb..ef11a822 100644
--- a/example/CMakeLists.txt
+++ b/example/CMakeLists.txt
@@ -27,3 +27,16 @@ target_link_libraries(rotation
wlr-render
${XKBCOMMON_LIBRARIES}
)
+
+add_executable(pointer
+ pointer.c
+ shared.c
+ cat.c
+)
+
+target_link_libraries(pointer
+ wlr-backend
+ wlr-session
+ wlr-render
+ ${XKBCOMMON_LIBRARIES}
+)
diff --git a/example/pointer.c b/example/pointer.c
new file mode 100644
index 00000000..969fb721
--- /dev/null
+++ b/example/pointer.c
@@ -0,0 +1,77 @@
+#define _POSIX_C_SOURCE 199309L
+#define _XOPEN_SOURCE 500
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <string.h>
+#include <unistd.h>
+#include <wayland-server.h>
+#include <wayland-server-protocol.h>
+#include <xkbcommon/xkbcommon.h>
+#include <GLES3/gl3.h>
+#include <wlr/render/matrix.h>
+#include <wlr/render/gles3.h>
+#include <wlr/render.h>
+#include <wlr/backend.h>
+#include <wlr/session.h>
+#include <wlr/types.h>
+#include <math.h>
+#include "shared.h"
+#include "cat.h"
+
+struct sample_state {
+ struct wlr_renderer *renderer;
+ struct wlr_surface *cat_texture;
+ int cur_x, cur_y;
+};
+
+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;
+
+ wlr_renderer_begin(sample->renderer, wlr_output);
+
+ float matrix[16];
+ wlr_surface_get_matrix(sample->cat_texture, &matrix,
+ &wlr_output->transform_matrix, sample->cur_x, sample->cur_y);
+ wlr_render_with_matrix(sample->renderer,
+ sample->cat_texture, &matrix);
+
+ wlr_renderer_end(sample->renderer);
+}
+
+static void handle_keyboard_key(struct keyboard_state *kbstate,
+ xkb_keysym_t sym, enum wlr_key_state key_state) {
+ if (sym == XKB_KEY_Escape) {
+ kbstate->compositor->exit = true;
+ }
+}
+
+static void handle_pointer_motion(struct pointer_state *pstate,
+ double d_x, double d_y) {
+ struct sample_state *state = pstate->compositor->data;
+ state->cur_x += d_x;
+ state->cur_y += d_y;
+}
+
+int main(int argc, char *argv[]) {
+ struct sample_state state = { 0 };
+ struct compositor_state compositor;
+
+ compositor_init(&compositor);
+ compositor.output_frame_cb = handle_output_frame;
+ compositor.pointer_motion_cb = handle_pointer_motion;
+ compositor.keyboard_key_cb = handle_keyboard_key;
+
+ state.renderer = wlr_gles3_renderer_init();
+ state.cat_texture = wlr_render_surface_init(state.renderer);
+ wlr_surface_attach_pixels(state.cat_texture, GL_RGB,
+ cat_tex.width, cat_tex.height, cat_tex.pixel_data);
+
+ compositor.data = &state;
+ compositor_run(&compositor);
+
+ wlr_surface_destroy(state.cat_texture);
+ wlr_renderer_destroy(state.renderer);
+}
diff --git a/example/shared.c b/example/shared.c
index 58266214..4657b7fe 100644
--- a/example/shared.c
+++ b/example/shared.c
@@ -35,12 +35,7 @@ static void keyboard_key_notify(struct wl_listener *listener, void *data) {
event->state == WLR_KEY_PRESSED ? XKB_KEY_DOWN : XKB_KEY_UP);
}
-static void input_add_notify(struct wl_listener *listener, void *data) {
- struct wlr_input_device *device = data;
- struct compositor_state *state = wl_container_of(listener, state, input_add);
- if (device->type != WLR_INPUT_DEVICE_KEYBOARD) {
- return;
- }
+static void keyboard_add(struct wlr_input_device *device, struct compositor_state *state) {
struct keyboard_state *kbstate = calloc(sizeof(struct keyboard_state), 1);
kbstate->device = device;
kbstate->compositor = state;
@@ -75,26 +70,90 @@ static void input_add_notify(struct wl_listener *listener, void *data) {
}
}
-static void input_remove_notify(struct wl_listener *listener, void *data) {
+static void pointer_motion_notify(struct wl_listener *listener, void *data) {
+ struct wlr_pointer_motion *event = data;
+ struct pointer_state *pstate = wl_container_of(listener, pstate, motion);
+ if (pstate->compositor->pointer_motion_cb) {
+ pstate->compositor->pointer_motion_cb(pstate, event->delta_x, event->delta_y);
+ }
+}
+
+static void pointer_add(struct wlr_input_device *device, struct compositor_state *state) {
+ struct pointer_state *pstate = calloc(sizeof(struct pointer_state), 1);
+ pstate->device = device;
+ pstate->compositor = state;
+ wl_list_init(&pstate->motion.link);
+ wl_list_init(&pstate->motion_absolute.link);
+ wl_list_init(&pstate->button.link);
+ wl_list_init(&pstate->axis.link);
+ pstate->motion.notify = pointer_motion_notify;
+ wl_signal_add(&device->pointer->events.motion, &pstate->motion);
+ wl_list_insert(&state->pointers, &pstate->link);
+}
+
+static void input_add_notify(struct wl_listener *listener, void *data) {
struct wlr_input_device *device = data;
struct compositor_state *state = wl_container_of(listener, state, input_add);
- if (device->type != WLR_INPUT_DEVICE_KEYBOARD) {
- return;
+ switch (device->type) {
+ case WLR_INPUT_DEVICE_KEYBOARD:
+ keyboard_add(device, state);
+ break;
+ case WLR_INPUT_DEVICE_POINTER:
+ pointer_add(device, state);
+ break;
+ default:
+ break;
}
+}
+
+static void keyboard_remove(struct wlr_input_device *device, struct compositor_state *state) {
struct keyboard_state *kbstate = NULL, *_kbstate;
wl_list_for_each(_kbstate, &state->keyboards, link) {
if (_kbstate->device == device) {
- kbstate = kbstate;
+ kbstate = _kbstate;
break;
}
}
if (!kbstate) {
- return; // We are unfamiliar with this keyboard
+ return;
}
wl_list_remove(&kbstate->link);
wl_list_remove(&kbstate->key.link);
}
+static void pointer_remove(struct wlr_input_device *device, struct compositor_state *state) {
+ struct pointer_state *pstate = NULL, *_pstate;
+ wl_list_for_each(_pstate, &state->pointers, link) {
+ if (_pstate->device == device) {
+ pstate = _pstate;
+ break;
+ }
+ }
+ if (!pstate) {
+ return;
+ }
+ wl_list_remove(&pstate->link);
+ //wl_list_remove(&pstate->motion.link);
+ wl_list_remove(&pstate->motion_absolute.link);
+ //wl_list_remove(&pstate->button.link);
+ //wl_list_remove(&pstate->axis.link);
+}
+
+static void input_remove_notify(struct wl_listener *listener, void *data) {
+ struct wlr_input_device *device = data;
+ struct compositor_state *state = wl_container_of(listener, state, input_add);
+ switch (device->type) {
+ case WLR_INPUT_DEVICE_KEYBOARD:
+ keyboard_remove(device, state);
+ break;
+ case WLR_INPUT_DEVICE_POINTER:
+ pointer_remove(device, state);
+ break;
+ default:
+ break;
+ }
+}
+
static void output_frame_notify(struct wl_listener *listener, void *data) {
struct output_state *output = wl_container_of(listener, output, frame);
struct compositor_state *compositor = output->compositor;
@@ -162,6 +221,7 @@ void compositor_init(struct compositor_state *state) {
}
wl_list_init(&state->keyboards);
+ wl_list_init(&state->pointers);
wl_list_init(&state->input_add.link);
state->input_add.notify = input_add_notify;
wl_list_init(&state->input_remove.link);
diff --git a/example/shared.h b/example/shared.h
index bafbee16..2c093414 100644
--- a/example/shared.h
+++ b/example/shared.h
@@ -28,6 +28,17 @@ struct keyboard_state {
void *data;
};
+struct pointer_state {
+ struct compositor_state *compositor;
+ struct wlr_input_device *device;
+ struct wl_listener motion;
+ struct wl_listener motion_absolute;
+ struct wl_listener button;
+ struct wl_listener axis;
+ struct wl_list link;
+ void *data;
+};
+
struct compositor_state {
void (*output_add_cb)(struct output_state *s);
void (*keyboard_add_cb)(struct keyboard_state *s);
@@ -36,6 +47,7 @@ struct compositor_state {
void (*keyboard_remove_cb)(struct keyboard_state *s);
void (*keyboard_key_cb)(struct keyboard_state *s, xkb_keysym_t sym,
enum wlr_key_state key_state);
+ void (*pointer_motion_cb)(struct pointer_state *s, double d_x, double d_y);
struct wl_display *display;
struct wl_event_loop *event_loop;
@@ -43,6 +55,7 @@ struct compositor_state {
struct wlr_session *session;
struct wl_list keyboards;
+ struct wl_list pointers;
struct wl_listener input_add;
struct wl_listener input_remove;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-07 13:34:22 +0000