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inspector: Speed up the fps overlay

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Do less work!
This commit is contained in:
Matthias Clasen 2023-11-01 13:55:29 -04:00
parent 76349ff6e5
commit 3ade9ae184
1 changed files with 79 additions and 23 deletions
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102
gtk/inspector/fpsoverlay.c
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@ -24,6 +24,7 @@
#include "gtkwidget.h"
#include "gtkwindow.h"
#include "gtknative.h"
#include "gtkmain.h"
/* duration before we start fading in us */
#define GDK_FPS_OVERLAY_LINGER_DURATION (1000 * 1000)
@ -40,6 +41,11 @@ struct _GtkFpsOverlay
GtkInspectorOverlay parent_instance;
GHashTable *infos; /* GtkWidget => GtkFpsInfo */
PangoFont *font;
PangoGlyphString *glyphs;
PangoGlyphString *digits;
int width, height, baseline;
};
struct _GtkFpsOverlayClass
@ -89,15 +95,13 @@ gtk_fps_overlay_snapshot (GtkInspectorOverlay *overlay,
{
GtkFpsOverlay *self = GTK_FPS_OVERLAY (overlay);
GtkFpsInfo *info;
PangoLayout *layout;
PangoAttrList *attrs;
gint64 now;
double fps;
char *fps_string;
graphene_rect_t bounds;
gboolean has_bounds;
int width, height;
double overlay_opacity;
PangoGlyphString *glyphs;
GskRenderNode *fps_node;
now = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
info = g_hash_table_lookup (self->infos, widget);
@ -131,12 +135,6 @@ gtk_fps_overlay_snapshot (GtkInspectorOverlay *overlay,
}
}
fps = gtk_fps_overlay_get_fps (widget);
if (fps == 0.0)
fps_string = g_strdup ("--- fps");
else
fps_string = g_strdup_printf ("%.2f fps", fps);
if (GTK_IS_WINDOW (widget))
{
GtkWidget *child = gtk_window_get_child (GTK_WINDOW (widget));
@ -146,33 +144,50 @@ gtk_fps_overlay_snapshot (GtkInspectorOverlay *overlay,
else
has_bounds = gtk_widget_compute_bounds (child, widget, &bounds);
}
else
else
{
has_bounds = gtk_widget_compute_bounds (widget, widget, &bounds);
}
layout = gtk_widget_create_pango_layout (widget, fps_string);
attrs = pango_attr_list_new ();
pango_attr_list_insert (attrs, pango_attr_font_features_new ("tnum=1"));
pango_layout_set_attributes (layout, attrs);
pango_attr_list_unref (attrs);
pango_layout_get_pixel_size (layout, &width, &height);
glyphs = pango_glyph_string_copy (self->glyphs);
fps = gtk_fps_overlay_get_fps (widget);
if (fps == 0.0)
{
for (int i = 0; i < 7; i++)
glyphs->glyphs[i].glyph = PANGO_GLYPH_EMPTY;
}
else
{
char *fps_string = g_strdup_printf ("%7.2f fps", fps);
for (int i = 0; i < 7; i++)
{
if (g_ascii_isdigit (fps_string[i]))
glyphs->glyphs[i].glyph = self->digits->glyphs[fps_string[i] - '0'].glyph;
else if (fps_string[i] == ' ')
glyphs->glyphs[i].glyph = PANGO_GLYPH_EMPTY;
}
g_free (fps_string);
}
gtk_snapshot_save (snapshot);
if (has_bounds)
gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (bounds.origin.x + bounds.size.width - width, bounds.origin.y));
gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (bounds.origin.x + bounds.size.width - self->width, bounds.origin.y));
if (overlay_opacity < 1.0)
gtk_snapshot_push_opacity (snapshot, overlay_opacity);
gtk_snapshot_append_color (snapshot,
&(GdkRGBA) { 0, 0, 0, 0.5 },
&GRAPHENE_RECT_INIT (-1, -1, width + 2, height + 2));
gtk_snapshot_append_layout (snapshot,
layout,
&(GdkRGBA) { 1, 1, 1, 1 });
&GRAPHENE_RECT_INIT (-1, -1, self->width + 2, self->height + 2));
fps_node = gsk_text_node_new (self->font,
glyphs,
&(GdkRGBA) { 1, 1, 1, 1 },
&GRAPHENE_POINT_INIT (0, self->baseline));
gtk_snapshot_append_node (snapshot, fps_node);
gsk_render_node_unref (fps_node);
if (overlay_opacity < 1.0)
gtk_snapshot_pop (snapshot);
gtk_snapshot_restore (snapshot);
g_free (fps_string);
gtk_widget_add_tick_callback (widget, gtk_fps_overlay_force_redraw, NULL, NULL);
}
@ -196,6 +211,10 @@ gtk_fps_overlay_dispose (GObject *object)
g_hash_table_unref (self->infos);
g_clear_pointer (&self->glyphs, pango_glyph_string_free);
g_clear_pointer (&self->digits, pango_glyph_string_free);
g_clear_object (&self->font);
G_OBJECT_CLASS (gtk_fps_overlay_parent_class)->dispose (object);
}
@ -214,7 +233,44 @@ gtk_fps_overlay_class_init (GtkFpsOverlayClass *klass)
static void
gtk_fps_overlay_init (GtkFpsOverlay *self)
{
PangoContext *context;
PangoLayout *layout;
PangoLayoutIter *iter;
PangoLayoutRun *run;
PangoAttrList *attrs;
self->infos = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, gtk_fps_info_free);
context = pango_font_map_create_context (pango_cairo_font_map_get_default ());
pango_context_set_language (context, gtk_get_default_language ());
layout = pango_layout_new (context);
pango_layout_set_text (layout, "0000.00 fps", -1);
attrs = pango_attr_list_new ();
pango_attr_list_insert (attrs, pango_attr_font_features_new ("tnum=1"));
pango_layout_set_attributes (layout, attrs);
pango_attr_list_unref (attrs);
pango_layout_get_pixel_size (layout, &self->width, &self->height);
iter = pango_layout_get_iter (layout);
self->baseline = pango_layout_iter_get_baseline (iter) / (double) PANGO_SCALE;
run = pango_layout_iter_get_run_readonly (iter);
self->glyphs = pango_glyph_string_copy (run->glyphs);
self->font = g_object_ref (run->item->analysis.font);
pango_layout_iter_free (iter);
pango_layout_set_text (layout, "0123456789", -1);
iter = pango_layout_get_iter (layout);
run = pango_layout_iter_get_run_readonly (iter);
self->digits = pango_glyph_string_copy (run->glyphs);
pango_layout_iter_free (iter);
g_object_unref (layout);
g_object_unref (context);
}
GtkInspectorOverlay *