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-rw-r--r--src/wayland/buffer.c571
1 files changed, 0 insertions, 571 deletions
diff --git a/src/wayland/buffer.c b/src/wayland/buffer.c
deleted file mode 100644
index 142f85f..0000000
--- a/src/wayland/buffer.c
+++ /dev/null
@@ -1,571 +0,0 @@
-#include "internal.h"
-#include <sys/resource.h>
-
-static long minor_faults(void)
-{
- struct rusage usage;
- return getrusage(RUSAGE_SELF, &usage) == 0 ? usage.ru_minflt : 0;
-}
-
-void surface_update_opaque_region(struct wayland_surface *w)
-{
- if (!w || !w->opaque || w->logical_width <= 0 || w->logical_height <= 0)
- return;
- struct wl_region *region = wl_compositor_create_region(w->conn->compositor);
- if (!region) return;
- wl_region_add(region, 0, 0, w->logical_width, w->logical_height);
- wl_surface_set_opaque_region(w->surface, region);
- wl_region_destroy(region);
-}
-
-static const struct wl_buffer_listener buffer_listener;
-
-int device_px(int logical, uint32_t scale_120)
-{
- int64_t px = ((int64_t)logical * scale_120 + YASL_SCALE_UNIT / 2) / YASL_SCALE_UNIT;
- return px > 0 && px <= INT_MAX ? (int)px : -1;
-}
-
-int logical_px_ceil(int device, uint32_t scale_120)
-{
- return (int)(((int64_t)device * YASL_SCALE_UNIT + scale_120 - 1) / scale_120);
-}
-
-bool buffer_size(int width, int height, size_t *bytes)
-{
- if (width <= 0 || height <= 0 || width > INT32_MAX / 4 ||
- (size_t)height > INT32_MAX / ((size_t)width * 4))
- return false;
- *bytes = (size_t)width * 4 * (size_t)height;
- return true;
-}
-
-void buffer_destroy(struct buffer *b)
-{
- if (b->proxy) wl_buffer_destroy(b->proxy);
- if (b->pool) wl_shm_pool_destroy(b->pool);
- if (b->pixels) munmap(b->pixels, b->capacity);
- *b = (struct buffer){0};
-}
-
-static bool fd_truncate(int fd, size_t bytes)
-{
- int rc;
- do { rc = ftruncate(fd, (off_t)bytes); } while (rc < 0 && errno == EINTR);
- return rc == 0;
-}
-
-int buffer_reserve(struct wayland_surface *w, struct buffer *b, size_t needed)
-{
- if (needed <= b->capacity) return 0;
- if (b->busy || needed > INT32_MAX) return -1;
- size_t capacity = b->capacity <= INT32_MAX / 2 ? b->capacity * 2 : INT32_MAX;
- if (capacity < needed) capacity = needed;
- int fd = memfd_create("yasl_surface_buffer", MFD_CLOEXEC | MFD_ALLOW_SEALING);
- if (fd < 0) return -1;
- if (!fd_truncate(fd, capacity) ||
- fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_GROW | F_SEAL_SEAL) < 0) {
- close(fd);
- return -1;
- }
- uint32_t *pixels = mmap(NULL, capacity, PROT_READ | PROT_WRITE,
- MAP_SHARED, fd, 0);
- if (pixels == MAP_FAILED) {
- close(fd);
- return -1;
- }
- struct wl_shm_pool *pool = wl_shm_create_pool(w->conn->shm, fd, (int32_t)capacity);
- close(fd);
- if (!pool) {
- munmap(pixels, capacity);
- return -1;
- }
- buffer_destroy(b);
- b->pool = pool;
- b->pixels = pixels;
- b->capacity = capacity;
- return 0;
-}
-
-int buffer_prepare(struct wayland_surface *w, struct buffer *b, int width, int height,
- const struct wl_buffer_listener *listener)
-{
- if (b->proxy && !b->busy && b->width == width && b->height == height) return 0;
- long faults_before = minor_faults();
- uint64_t t0 = yasl_loop_now_ns();
- size_t bytes;
- if (!buffer_size(width, height, &bytes) || buffer_reserve(w, b, bytes) < 0)
- return -1;
- b->owner = w;
- struct wl_buffer *proxy = wl_shm_pool_create_buffer(b->pool, 0,
- width, height, width * 4, WL_SHM_FORMAT_ARGB8888);
- if (!proxy) return -1;
- if (b->proxy) wl_buffer_destroy(b->proxy);
- b->proxy = proxy;
- b->width = width;
- b->height = height;
- b->busy = false;
- b->presented = false;
- wl_buffer_add_listener(proxy, listener, b);
- yasl_clock_note_resize(&w->clock, yasl_loop_now_ns() - t0);
- long faults = minor_faults() - faults_before;
- if (faults > 0) w->clock.resize_minflt += faults;
- return 0;
-}
-
-static void publish_surface_scale(struct wayland_surface *w)
-{
- if (w->viewport) {
- wp_viewport_set_destination(w->viewport, w->logical_width, w->logical_height);
- } else if (w->scale_120 % YASL_SCALE_UNIT == 0 &&
- wl_proxy_get_version((struct wl_proxy *)w->surface) >=
- WL_SURFACE_SET_BUFFER_SCALE_SINCE_VERSION) {
- wl_surface_set_buffer_scale(w->surface, (int32_t)(w->scale_120 / YASL_SCALE_UNIT));
- }
-}
-
-static void surface_request_scale(struct wayland_surface *w, uint32_t scale_120)
-{
- if (!scale_120 || scale_120 == w->pending_scale_120) return;
- w->pending_scale_120 = scale_120;
- w->size_pending = true;
- wayland_surface_schedule_redraw(w);
-}
-
-int apply_pending_geometry(struct wayland_surface *w)
-{
- if (!w->size_pending) return 0;
- if (w->parent && w->pending_scale_120 == w->scale_120) {
- w->size_pending = false;
- return 0;
- }
- bool floating = !w->parent && !w->maximized && !w->fullscreen && !w->tiled;
- int free_w = floating && w->floating_width > 0 ? w->floating_width : w->logical_width;
- int free_h = floating && w->floating_height > 0 ? w->floating_height : w->logical_height;
- int logical_w = !w->parent && w->req_width > 0 ? w->req_width : free_w;
- int logical_h = !w->parent && w->req_height > 0 ? w->req_height : free_h;
- if (!w->parent) {
- if (logical_w < YASL_MIN_LOGICAL_PX) logical_w = YASL_MIN_LOGICAL_PX;
- if (logical_h < YASL_MIN_LOGICAL_PX) logical_h = YASL_MIN_LOGICAL_PX;
- }
- if (!w->fullscreen) {
- if (w->bound_width > 0 && logical_w > w->bound_width)
- logical_w = w->bound_width;
- if (w->bound_height > 0 && logical_h > w->bound_height)
- logical_h = w->bound_height;
- }
- int width = device_px(logical_w, w->pending_scale_120);
- int height = device_px(logical_h, w->pending_scale_120);
- size_t bytes;
- if (!buffer_size(width, height, &bytes)) {
- return -1;
- }
- bool rescaled = w->scale_120 != w->pending_scale_120;
- bool resized = width != w->width || height != w->height;
- w->size_pending = false;
- if (floating) {
- w->floating_width = logical_w;
- w->floating_height = logical_h;
- }
- if (!rescaled && !resized && logical_w == w->logical_width && logical_h == w->logical_height)
- return 0;
-
- w->scale_120 = w->pending_scale_120;
- w->scale_factor = (double)w->scale_120 / YASL_SCALE_UNIT;
- w->width = width;
- w->height = height;
- w->base.size = (struct yasl_vector2i){width, height};
- w->base.scale_120 = w->scale_120;
- w->logical_width = logical_w;
- w->logical_height = logical_h;
- surface_update_opaque_region(w);
- if (resized || rescaled) {
- for (int i = 0; i < NBUF; i++)
- w->buffers[i].presented = false;
- }
- publish_surface_scale(w);
- if (w->cbs->configure && (resized || rescaled))
- w->cbs->configure(&w->base, (struct yasl_geometry){
- .size = { .x = width, .y = height }, .scale_120 = w->scale_120,
- }, w->ud);
- return 0;
-}
-
-static void fractional_preferred_scale(void *data,
- struct wp_fractional_scale_v1 *frac_scale, uint32_t scale)
-{
- (void)frac_scale;
- surface_request_scale(data, scale);
-}
-
-static const struct wp_fractional_scale_v1_listener frac_scale_listener = {
- .preferred_scale = fractional_preferred_scale,
-};
-
-void surface_follow_outputs(struct wayland_surface *w)
-{
- uint32_t refresh = 0;
- int32_t max_scale = 0;
- bool need_scale = !w->frac_scale && !surface_gets_preferred_scale(w->surface);
-
- for (const struct wl_conn_output *o = w->conn->outputs; o; o = o->next) {
- if (o->mask & w->outputs) {
- if (o->refresh_ns && (!refresh || o->refresh_ns < refresh))
- refresh = o->refresh_ns;
- if (need_scale && o->scale > max_scale)
- max_scale = o->scale;
- }
- }
- if (!refresh && w->conn->outputs)
- refresh = w->conn->outputs->refresh_ns;
- if (refresh)
- w->clock.refresh_ns = refresh;
-
- if (need_scale)
- surface_request_scale(w, (uint32_t)max_scale * YASL_SCALE_UNIT);
-}
-
-static void surface_enter(void *data, struct wl_surface *surface, struct wl_output *output)
-{
- (void)surface;
- struct wayland_surface *w = data;
- w->outputs |= conn_output_mask(w->conn, output);
- surface_follow_outputs(w);
-}
-
-static void surface_leave(void *data, struct wl_surface *surface, struct wl_output *output)
-{
- (void)surface;
- struct wayland_surface *w = data;
- w->outputs &= ~conn_output_mask(w->conn, output);
- surface_follow_outputs(w);
-}
-
-static void surface_preferred_scale(void *data, struct wl_surface *surface, int32_t factor)
-{
- (void)surface;
- struct wayland_surface *w = data;
- if (w->frac_scale || w->parent || factor <= 0)
- return;
- surface_request_scale(w, (uint32_t)factor * YASL_SCALE_UNIT);
-}
-
-static void surface_preferred_transform(void *data, struct wl_surface *surface,
- uint32_t transform)
-{
- (void)data; (void)surface; (void)transform;
-}
-
-static const struct wl_surface_listener surface_listener = {
- .enter = surface_enter,
- .leave = surface_leave,
- .preferred_buffer_scale = surface_preferred_scale,
- .preferred_buffer_transform = surface_preferred_transform,
-};
-
-static void buffer_release(void *data, struct wl_buffer *buffer)
-{
- (void)buffer;
- struct buffer *b = data;
- b->busy = false;
- if (b->owner && b->owner->want_draw)
- wayland_surface_schedule_redraw(b->owner);
-}
-
-static const struct wl_buffer_listener buffer_listener = {
- .release = buffer_release,
-};
-
-static void frame_done(void *data, struct wl_callback *cb, uint32_t ms)
-{
- struct wayland_surface *w = data;
- wl_callback_destroy(cb);
- w->frame_cb = NULL;
-
- uint64_t now = yasl_loop_now_ns();
- if (!w->conn->pres_clock_known) {
- yasl_clock_presented(&w->clock, yasl_clock_extend_ms(ms, now), w->sample_refresh);
- w->clock.source = YASL_TIMING_FRAME_CALLBACK;
- }
-
- if (w->want_draw)
- wayland_surface_schedule_redraw(w);
-}
-
-static const struct wl_callback_listener frame_listener = {
- .done = frame_done,
-};
-
-static void arm_frame(struct wayland_surface *w)
-{
- if (!w->configured || w->closed || w->frame_cb)
- return;
- w->frame_cb = wl_surface_frame(w->surface);
- if (!w->frame_cb) { surface_fail(w); return; }
- w->sample_refresh = w->clock.last_present_ns &&
- yasl_loop_now_ns() - w->clock.last_present_ns <
- (uint64_t)(w->clock.refresh_ns / 2);
- if (wl_callback_add_listener(w->frame_cb, &frame_listener, w) < 0) {
- wl_callback_destroy(w->frame_cb);
- w->frame_cb = NULL;
- surface_fail(w);
- }
-}
-
-static const int8_t free_buf_lut[4][8] = {
- [0] = { 1, 1, 2, 2, 1, 1, 0, -1 },
- [1] = { 0, 2, 0, 2, 0, 1, 0, -1 },
- [2] = { 0, 1, 0, 2, 0, 1, 0, -1 },
- [3] = { 0, 1, 0, 2, 0, 1, 0, -1 },
-};
-
-int buffer_pick_free_index(const struct buffer *bufs, int cur)
-{
- unsigned busy = ((unsigned)bufs[0].busy) |
- (((unsigned)bufs[1].busy) << 1) |
- (((unsigned)bufs[2].busy) << 2);
- return free_buf_lut[(unsigned)cur & 3][busy];
-}
-
-static void feedback_destroy(struct latency_feedback *feedback)
-{
- struct latency_feedback **link = &feedback->window->latency_feedbacks;
- while (*link && *link != feedback) link = &(*link)->next;
- if (*link) *link = feedback->next;
- wp_presentation_feedback_destroy(feedback->proxy);
- if (feedback->in_pool)
- *feedback = (struct latency_feedback){0};
- else
- free(feedback);
-}
-
-void surface_feedback_destroy(struct wayland_surface *w)
-{
- while (w->latency_feedbacks) feedback_destroy(w->latency_feedbacks);
-}
-
-static void sync_output(void *data, struct wp_presentation_feedback *fb,
- struct wl_output *output)
-{
- (void)data; (void)fb; (void)output;
-}
-
-static void presented(void *data, struct wp_presentation_feedback *fb,
- uint32_t tv_sec_hi, uint32_t tv_sec_lo, uint32_t tv_nsec,
- uint32_t refresh, uint32_t seq_hi, uint32_t seq_lo, uint32_t flags)
-{
- (void)seq_hi; (void)seq_lo; (void)flags;
- struct latency_feedback *feedback = data;
- struct wayland_surface *w = feedback->window;
- if (w->conn->pres_clock_known) {
- uint64_t ns = conn_pres_to_mono(w->conn,
- (((uint64_t)tv_sec_hi << 32) | tv_sec_lo) * 1000000000ull + tv_nsec);
- if (refresh) w->clock.refresh_ns = refresh;
- w->clock.last_present_ns = ns;
- w->clock.source = YASL_TIMING_PRESENTATION;
- }
- (void)fb;
- feedback_destroy(feedback);
-}
-
-static void discarded(void *data, struct wp_presentation_feedback *fb)
-{
- struct latency_feedback *feedback = data;
- feedback->window->frames_skipped++;
- (void)fb;
- feedback_destroy(feedback);
-}
-
-static const struct wp_presentation_feedback_listener feedback_listener = {
- .sync_output = sync_output,
- .presented = presented,
- .discarded = discarded,
-};
-
-void surface_request_presentation_feedback(struct wayland_surface *w)
-{
- if (!w || !w->conn->presentation)
- return;
- struct wp_presentation_feedback *fb =
- wp_presentation_feedback(w->conn->presentation, w->surface);
- if (!fb)
- return;
- struct latency_feedback *feedback = NULL;
- for (int i = 0; i < 8; i++) {
- if (!w->latency_pool[i].window) {
- feedback = &w->latency_pool[i];
- feedback->in_pool = true;
- break;
- }
- }
- if (!feedback) {
- feedback = calloc(1, sizeof(*feedback));
- if (!feedback) {
- wp_presentation_feedback_destroy(fb);
- return;
- }
- }
- feedback->window = w;
- feedback->proxy = fb;
- feedback->next = w->latency_feedbacks;
- w->latency_feedbacks = feedback;
- wp_presentation_feedback_add_listener(fb, &feedback_listener, feedback);
-}
-
-static void commit_buffer(struct wayland_surface *w, int idx)
-{
- wl_surface_attach(w->surface, w->buffers[idx].proxy, 0, 0);
-
- const struct yasl_damage_list *d = &w->damage;
- if (d->n < 0 || !w->buffers[idx].presented)
- wl_surface_damage_buffer(w->surface, 0, 0, w->width, w->height);
- else
- wl_damage_list(w->surface, d);
-
- if (!w->parent) {
- surface_request_presentation_feedback(w);
- if (w->conn->fifo_mgr && !w->fifo)
- w->fifo = wp_fifo_manager_v1_get_fifo(w->conn->fifo_mgr, w->surface);
- if (w->conn->commit_timing_mgr && !w->commit_timer)
- w->commit_timer = wp_commit_timing_manager_v1_get_timer(
- w->conn->commit_timing_mgr, w->surface);
- }
- if (w->fifo) {
- wp_fifo_v1_wait_barrier(w->fifo);
- wp_fifo_v1_set_barrier(w->fifo);
- }
- if (w->commit_timer && w->conn->pres_clock_known) {
- uint64_t now = yasl_loop_now_ns();
- uint64_t next = yasl_clock_next_present_ns(&w->clock);
- bool soon = next > now && next - now < (uint64_t)(w->clock.refresh_ns * 1.5);
- next = conn_mono_to_pres(w->conn, next);
- if (soon)
- wp_commit_timer_v1_set_timestamp(w->commit_timer,
- (uint32_t)(next / 1000000000ull >> 32),
- (uint32_t)(next / 1000000000ull),
- (uint32_t)(next % 1000000000ull));
- }
-
- if (w->has_pending_serial) {
- xdg_surface_ack_configure(w->xdg_surface, w->pending_serial);
- w->has_pending_serial = false;
- }
- wl_surface_commit(w->surface);
- w->buffers[idx].busy = true;
- w->buffers[idx].presented = true;
-}
-
-bool wayland_surface_present(struct wayland_surface *w, const struct yasl_framebuffer *fb,
- const struct yasl_damage_list *damage)
-{
- if (!w || w->closed || !w->frame_active || w->frame_presented || !fb ||
- !damage || fb->pixels != w->frame.target.pixels ||
- fb->size.x != w->width || fb->size.y != w->height)
- return false;
-
- w->damage.n = damage->n;
- w->damage.bounds = damage->bounds;
- if (damage->n > 0)
- memcpy(w->damage.rects, damage->rects, (size_t)damage->n * sizeof(damage->rects[0]));
- arm_frame(w);
- if (w->closed)
- return false;
- commit_buffer(w, w->cur);
- w->frame_presented = true;
- return true;
-}
-
-void surface_draw_frame(struct wayland_surface *w)
-{
- if (w->closed || !w->configured)
- return;
- if (apply_pending_geometry(w) < 0) {
- surface_fail(w);
- return;
- }
- if (w->closed || !w->cbs->draw || w->frame_cb || !w->want_draw)
- return;
-
- int idx = buffer_pick_free_index(w->buffers, w->cur);
- if (idx < 0) {
- w->frames_skipped++;
- return;
- }
- if (buffer_prepare(w, &w->buffers[idx], w->width, w->height, &buffer_listener) < 0) {
- w->frames_skipped++;
- return;
- }
- w->cur = idx;
- w->want_draw = false;
-
- if (w->parent)
- memset(w->buffers[idx].pixels, 0, (size_t)w->width * (size_t)w->height * sizeof(uint32_t));
- w->damage = (struct yasl_damage_list){0};
- w->frame = (struct yasl_frame){
- .surface = &w->base,
- .target = {
- .generation = yasl_frame_begin(&w->base),
- .pixels = w->buffers[idx].pixels,
- .size = { .x = w->width, .y = w->height },
- },
- };
- w->frame_active = true;
- w->frame_presented = false;
- w->cbs->draw(&w->base, &w->frame, w->ud);
- w->frame_active = false;
- if (!w->closed && !w->frame_presented)
- w->frames_skipped++;
-}
-
-int surface_init_scaling(struct wayland_surface *w)
-{
- wl_surface_add_listener(w->surface, &surface_listener, w);
- if (w->conn->viewporter) {
- w->viewport = wp_viewporter_get_viewport(w->conn->viewporter, w->surface);
- if (!w->viewport) return -1;
- }
- if (w->conn->scale_mgr && w->viewport && !w->parent) {
- w->frac_scale = wp_fractional_scale_manager_v1_get_fractional_scale(
- w->conn->scale_mgr, w->surface);
- if (!w->frac_scale) return -1;
- wp_fractional_scale_v1_add_listener(w->frac_scale, &frac_scale_listener, w);
- }
- return 0;
-}
-
-void wayland_surface_set_title(struct wayland_surface *w, const char *title)
-{
- if (!w || !w->toplevel || !title) return;
- char *copy = yasl_utf8_sanitize_dup(title);
- if (!copy) return;
- xdg_toplevel_set_title(w->toplevel, copy);
- free(copy);
-}
-
-uint32_t wayland_surface_state(const struct wayland_surface *w)
-{
- if (unlikely(!w)) return 0;
- return ((uint32_t)w->fullscreen * YASL_STATE_FULLSCREEN) |
- ((uint32_t)w->maximized * YASL_STATE_MAXIMIZED) |
- ((uint32_t)w->activated * YASL_STATE_ACTIVATED) |
- ((uint32_t)w->suspended * YASL_STATE_SUSPENDED) |
- ((uint32_t)!w->server_decorated * YASL_STATE_CSD);
-}
-
-struct yasl_timing wayland_surface_timing(const struct wayland_surface *w)
-{
- struct yasl_timing t = {
- .refresh_ns = w->clock.refresh_ns,
- .last_present_ns = w->clock.last_present_ns,
- .next_present_ns = yasl_clock_next_present_ns(&w->clock),
- .frames_skipped = w->frames_skipped,
- .source = w->clock.source,
- };
- yasl_clock_resize_stats(&w->clock, &t.resize);
- return t;
-}
-
-uint64_t wayland_surface_frame_time_ns(struct wayland_surface *w, uint64_t now)
-{
- return yasl_clock_frame_timestamp_ns(&w->clock, now);
-}
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