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sysprof: some work on graph recursion

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This commit is contained in:
Christian Hergert
2023-08-23 16:01:14 -07:00
parent 790408f10c
commit f9dabe582a
1 changed files with 37 additions and 12 deletions
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49
src/sysprof/sysprof-flame-graph.c
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@ -22,6 +22,7 @@
#include "sysprof-callgraph-private.h"
#include "sysprof-category-icon.h"
#include "sysprof-color-iter-private.h"
#include "sysprof-flame-graph.h"
@ -45,17 +46,26 @@ static GParamSpec *properties [N_PROPS];
static void
sysprof_flame_graph_snapshot_node (GtkSnapshot *snapshot,
SysprofCallgraphNode *node,
guint64 weight,
const graphene_rect_t *area,
int row_height,
double min_width)
double row_height,
double min_width,
const GdkRGBA *default_color,
int depth)
{
const GdkRGBA *color;
GdkRGBA fallback;
g_assert (GTK_IS_SNAPSHOT (snapshot));
g_assert (node != NULL);
g_assert (area != NULL);
color = sysprof_callgraph_category_get_color (node->category);
if (!(color = sysprof_callgraph_category_get_color (node->category)) || color->alpha == 0)
{
fallback = *default_color;
fallback.alpha -= depth * .005,
color = &fallback;
}
gtk_snapshot_append_color (snapshot,
color,
@ -67,10 +77,6 @@ sysprof_flame_graph_snapshot_node (GtkSnapshot *snapshot,
if (node->children != NULL)
{
graphene_rect_t child_area;
guint64 weight = 0;
for (SysprofCallgraphNode *child = node->children; child; child = child->next)
weight += child->count;
child_area.origin.x = area->origin.x;
child_area.origin.y = area->origin.y;
@ -78,7 +84,10 @@ sysprof_flame_graph_snapshot_node (GtkSnapshot *snapshot,
for (SysprofCallgraphNode *child = node->children; child; child = child->next)
{
double width = child->count / (double)weight * area->size.width;
double ratio = child->count / (double)weight;
double width;
width = ratio * area->size.width;
if (width < min_width)
child_area.size.width = min_width;
@ -87,7 +96,14 @@ sysprof_flame_graph_snapshot_node (GtkSnapshot *snapshot,
child_area.size.width = area->origin.x + area->size.width - child_area.origin.x;
sysprof_flame_graph_snapshot_node (snapshot, child, &child_area, row_height, min_width);
sysprof_flame_graph_snapshot_node (snapshot,
child,
weight,
&child_area,
row_height,
min_width,
default_color,
depth + 1);
child_area.origin.x += width;
}
@ -99,7 +115,9 @@ sysprof_flame_graph_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
SysprofFlameGraph *self = (SysprofFlameGraph *)widget;
int row_height;
SysprofColorIter iter;
guint64 weight = 0;
double row_height;
g_assert (SYSPROF_IS_FLAME_GRAPH (self));
g_assert (GTK_IS_SNAPSHOT (snapshot));
@ -107,15 +125,22 @@ sysprof_flame_graph_snapshot (GtkWidget *widget,
if (self->callgraph == NULL)
return;
row_height = MIN (24, gtk_widget_get_height (widget) / (double)self->callgraph->height);
sysprof_color_iter_init (&iter);
row_height = gtk_widget_get_height (widget) / (double)self->callgraph->height;
for (SysprofCallgraphNode *child = self->callgraph->root.children; child; child = child->next)
weight += child->count;
sysprof_flame_graph_snapshot_node (snapshot,
&self->callgraph->root,
weight,
&GRAPHENE_RECT_INIT (0, 0,
gtk_widget_get_width (widget),
gtk_widget_get_height (widget)),
row_height,
1. / (double)gtk_widget_get_scale_factor (widget));
1. / (double)gtk_widget_get_scale_factor (widget),
sysprof_color_iter_next (&iter),
0);
}
static void