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compositor: Add scene-graph debug scope

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Add a 'scene-graph' debug scope which will dump out the current set of
outputs, layers, and views and as much information as possible about how
they are rendered and composited.

Signed-off-by: Daniel Stone <daniels@collabora.com>
dev
Daniel Stone 6 years ago
parent 3b7756351d
commit ce62cb3d05
2 changed files with 229 additions and 0 deletions
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  1. 225
      libweston/compositor.c
  2. 4
      libweston/compositor.h

225
libweston/compositor.c
Unescape View File

@ -55,6 +55,8 @@
#include "timeline.h"
#include "compositor.h"
#include "weston-debug.h"
#include "linux-dmabuf.h"
#include "viewporter-server-protocol.h"
#include "presentation-time-server-protocol.h"
#include "shared/helpers.h"
@ -6306,6 +6308,221 @@ timeline_key_binding_handler(struct weston_keyboard *keyboard,
weston_timeline_open(compositor);
}
static const char *
output_repaint_status_text(struct weston_output *output)
{
switch (output->repaint_status) {
case REPAINT_NOT_SCHEDULED:
return "no repaint";
case REPAINT_BEGIN_FROM_IDLE:
return "start_repaint_loop scheduled";
case REPAINT_SCHEDULED:
return "repaint scheduled";
case REPAINT_AWAITING_COMPLETION:
return "awaiting completion";
}
assert(!"output_repaint_status_text missing enum");
return NULL;
}
static void
debug_scene_view_print_buffer(FILE *fp, struct weston_view *view)
{
struct weston_buffer *buffer = view->surface->buffer_ref.buffer;
struct wl_shm_buffer *shm;
struct linux_dmabuf_buffer *dmabuf;
if (!buffer) {
fprintf(fp, "\t\t[buffer not available]\n");
return;
}
shm = wl_shm_buffer_get(buffer->resource);
if (shm) {
fprintf(fp, "\t\tSHM buffer\n");
fprintf(fp, "\t\t\tformat: 0x%lx\n",
(unsigned long) wl_shm_buffer_get_format(shm));
return;
}
dmabuf = linux_dmabuf_buffer_get(buffer->resource);
if (dmabuf) {
fprintf(fp, "\t\tdmabuf buffer\n");
fprintf(fp, "\t\t\tformat: 0x%lx\n",
(unsigned long) dmabuf->attributes.format);
fprintf(fp, "\t\t\tmodifier: 0x%llx\n",
(unsigned long long) dmabuf->attributes.modifier[0]);
return;
}
fprintf(fp, "\t\tEGL buffer");
}
static void
debug_scene_view_print(FILE *fp, struct weston_view *view, int view_idx)
{
struct weston_compositor *ec = view->surface->compositor;
struct weston_output *output;
char desc[512];
pixman_box32_t *box;
uint32_t surface_id = 0;
pid_t pid = 0;
if (view->surface->resource) {
struct wl_resource *resource = view->surface->resource;
wl_client_get_credentials(wl_resource_get_client(resource),
&pid, NULL, NULL);
surface_id = wl_resource_get_id(view->surface->resource);
}
if (!view->surface->get_label ||
view->surface->get_label(view->surface, desc, sizeof(desc)) < 0) {
strcpy(desc, "[no description available]");
}
fprintf(fp, "\tView %d (role %s, PID %d, surface ID %u, %s, %p):\n",
view_idx, view->surface->role_name, pid, surface_id,
desc, view);
box = pixman_region32_extents(&view->transform.boundingbox);
fprintf(fp, "\t\tposition: (%d, %d) -> (%d, %d)\n",
box->x1, box->y1, box->x2, box->y2);
box = pixman_region32_extents(&view->transform.opaque);
if (pixman_region32_equal(&view->transform.opaque,
&view->transform.boundingbox)) {
fprintf(fp, "\t\t[fully opaque]\n");
} else if (!pixman_region32_not_empty(&view->transform.opaque)) {
fprintf(fp, "\t\t[not opaque]\n");
} else {
fprintf(fp, "\t\t[opaque: (%d, %d) -> (%d, %d)]\n",
box->x1, box->y1, box->x2, box->y2);
}
if (view->alpha < 1.0)
fprintf(fp, "\t\talpha: %f\n", view->alpha);
if (view->output_mask != 0) {
bool first_output = true;
fprintf(fp, "\t\toutputs: ");
wl_list_for_each(output, &ec->output_list, link) {
if (!(view->output_mask & (1 << output->id)))
continue;
fprintf(fp, "%s%d (%s)%s",
(first_output) ? "" : ", ",
output->id, output->name,
(view->output == output) ? " (primary)" : "");
first_output = false;
}
} else {
fprintf(fp, "\t\t[no outputs]");
}
fprintf(fp, "\n");
debug_scene_view_print_buffer(fp, view);
}
/**
* Output information on how libweston is currently composing the scene
* graph.
*/
WL_EXPORT char *
weston_compositor_print_scene_graph(struct weston_compositor *ec)
{
struct weston_output *output;
struct weston_layer *layer;
struct timespec now;
int layer_idx = 0;
FILE *fp;
char *ret;
size_t len;
int err;
fp = open_memstream(&ret, &len);
assert(fp);
weston_compositor_read_presentation_clock(ec, &now);
fprintf(fp, "Weston scene graph at %ld.%09ld:\n\n",
now.tv_sec, now.tv_nsec);
wl_list_for_each(output, &ec->output_list, link) {
struct weston_head *head;
int head_idx = 0;
fprintf(fp, "Output %d (%s):\n", output->id, output->name);
assert(output->enabled);
fprintf(fp, "\tposition: (%d, %d) -> (%d, %d)\n",
output->x, output->y,
output->x + output->width,
output->y + output->height);
fprintf(fp, "\tmode: %dx%d@%.3fHz\n",
output->current_mode->width,
output->current_mode->height,
output->current_mode->refresh / 1000.0);
fprintf(fp, "\tscale: %d\n", output->scale);
fprintf(fp, "\trepaint status: %s\n",
output_repaint_status_text(output));
if (output->repaint_status == REPAINT_SCHEDULED)
fprintf(fp, "\tnext repaint: %ld.%09ld\n",
output->next_repaint.tv_sec,
output->next_repaint.tv_nsec);
wl_list_for_each(head, &output->head_list, output_link) {
fprintf(fp, "\tHead %d (%s): %sconnected\n",
head_idx++, head->name,
(head->connected) ? "" : "not ");
}
}
fprintf(fp, "\n");
wl_list_for_each(layer, &ec->layer_list, link) {
struct weston_view *view;
int view_idx = 0;
fprintf(fp, "Layer %d (pos 0x%lx):\n", layer_idx++,
(unsigned long) layer->position);
if (!weston_layer_mask_is_infinite(layer)) {
fprintf(fp, "\t[mask: (%d, %d) -> (%d,%d)]\n\n",
layer->mask.x1, layer->mask.y1,
layer->mask.x2, layer->mask.y2);
}
wl_list_for_each(view, &layer->view_list.link, layer_link.link)
debug_scene_view_print(fp, view, view_idx++);
if (wl_list_empty(&layer->view_list.link))
fprintf(fp, "\t[no views]\n");
fprintf(fp, "\n");
}
err = fclose(fp);
assert(err == 0);
return ret;
}
/**
* Called when the 'scene-graph' debug scope is bound by a client. This
* one-shot weston-debug scope prints the current scene graph when bound,
* and then terminates the stream.
*/
static void
debug_scene_graph_cb(struct weston_debug_stream *stream, void *data)
{
struct weston_compositor *ec = data;
char *str = weston_compositor_print_scene_graph(ec);
weston_debug_stream_printf(stream, "%s", str);
free(str);
weston_debug_stream_complete(stream);
}
/** Create the compositor.
*
* This functions creates and initializes a compositor instance.
@ -6415,6 +6632,12 @@ weston_compositor_create(struct wl_display *display, void *user_data)
weston_compositor_add_debug_binding(ec, KEY_T,
timeline_key_binding_handler, ec);
ec->debug_scene =
weston_compositor_add_debug_scope(ec, "scene-graph",
"Scene graph details\n",
debug_scene_graph_cb,
ec);
return ec;
fail:
@ -6714,6 +6937,8 @@ weston_compositor_destroy(struct weston_compositor *compositor)
if (compositor->heads_changed_source)
wl_event_source_remove(compositor->heads_changed_source);
weston_debug_scope_destroy(compositor->debug_scene);
compositor->debug_scene = NULL;
weston_debug_compositor_destroy(compositor);
free(compositor);

4
libweston/compositor.h
Unescape View File

@ -1163,6 +1163,7 @@ struct weston_compositor {
struct weston_touch_calibrator *touch_calibrator;
struct weston_debug_compositor *weston_debug;
struct weston_debug_scope *debug_scene;
};
struct weston_buffer {
@ -1933,6 +1934,9 @@ weston_buffer_reference(struct weston_buffer_reference *ref,
void
weston_compositor_get_time(struct timespec *time);
char *
weston_compositor_print_scene_graph(struct weston_compositor *ec);
void
weston_compositor_destroy(struct weston_compositor *ec);
struct weston_compositor *

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