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grutil: apply FPS meter improvements to scene graph analyzer too

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This fixes the aspect ratio scaling issue in particular.

Fixes #456
This commit is contained in:
rdb 2018-11-22 23:05:40 +01:00
parent 356b604627
commit d093cbbb90
2 changed files with 39 additions and 6 deletions
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42
panda/src/grutil/sceneGraphAnalyzerMeter.cxx
View File

@ -19,6 +19,7 @@
#include "depthTestAttrib.h"
#include "depthWriteAttrib.h"
#include "pStatTimer.h"
#include "omniBoundingVolume.h"
#include <stdio.h> // For sprintf/snprintf
PStatCollector SceneGraphAnalyzerMeter::_show_analyzer_pcollector("*:Show scene graph analysis");
@ -29,9 +30,16 @@ TypeHandle SceneGraphAnalyzerMeter::_type_handle;
*
*/
SceneGraphAnalyzerMeter::
SceneGraphAnalyzerMeter(const std::string &name, PandaNode *node) : TextNode(name) {
SceneGraphAnalyzerMeter(const std::string &name, PandaNode *node) :
TextNode(name),
_last_aspect_ratio(-1) {
set_cull_callback();
// Don't do frustum culling, as the text will always be in view.
set_bounds(new OmniBoundingVolume());
set_final(true);
Thread *current_thread = Thread::get_current_thread();
_update_interval = scene_graph_analyzer_meter_update_interval;
@ -41,7 +49,7 @@ SceneGraphAnalyzerMeter(const std::string &name, PandaNode *node) : TextNode(nam
set_align(A_left);
set_transform(LMatrix4::scale_mat(scene_graph_analyzer_meter_scale) *
LMatrix4::translate_mat(LVector3::rfu(-1.0f + scene_graph_analyzer_meter_side_margins * scene_graph_analyzer_meter_scale, 0.0f, 1.0f - scene_graph_analyzer_meter_scale)));
LMatrix4::translate_mat(LVector3::rfu(scene_graph_analyzer_meter_side_margins * scene_graph_analyzer_meter_scale, 0.0f, -scene_graph_analyzer_meter_scale)));
set_card_color(0.0f, 0.0f, 0.0f, 0.4);
set_card_as_margin(scene_graph_analyzer_meter_side_margins, scene_graph_analyzer_meter_side_margins, 0.1f, 0.0f);
set_usage_hint(Geom::UH_client);
@ -77,6 +85,11 @@ setup_window(GraphicsOutput *window) {
_root.set_material_off(1);
_root.set_two_sided(1, 1);
// If we don't set this explicitly, Panda will cause it to be rendered
// in a back-to-front cull bin, which will cause the bounding volume
// to be computed unnecessarily. Saves a little bit of overhead.
_root.set_bin("unsorted", 0);
// Create a display region that covers the entire window.
_display_region = _window->make_display_region();
_display_region->set_sort(scene_graph_analyzer_meter_layer_sort);
@ -87,10 +100,11 @@ setup_window(GraphicsOutput *window) {
PT(Lens) lens = new OrthographicLens;
static const PN_stdfloat left = -1.0f;
static const PN_stdfloat right = 1.0f;
static const PN_stdfloat bottom = -1.0f;
static const PN_stdfloat top = 1.0f;
// We choose these values such that we can place the text against (0, 0).
static const PN_stdfloat left = 0.0f;
static const PN_stdfloat right = 2.0f;
static const PN_stdfloat bottom = -2.0f;
static const PN_stdfloat top = 0.0f;
lens->set_film_size(right - left, top - bottom);
lens->set_film_offset((right + left) * 0.5, (top + bottom) * 0.5);
lens->set_near_far(-1000, 1000);
@ -138,6 +152,22 @@ cull_callback(CullTraverser *trav, CullTraverserData &data) {
// Statistics
PStatTimer timer(_show_analyzer_pcollector, current_thread);
// This is probably a good time to check if the aspect ratio on the window
// has changed.
int width = _display_region->get_pixel_width();
int height = _display_region->get_pixel_height();
PN_stdfloat aspect_ratio = 1;
if (width != 0 && height != 0) {
aspect_ratio = (PN_stdfloat)height / (PN_stdfloat)width;
}
// Scale the transform by the calculated aspect ratio.
if (aspect_ratio != _last_aspect_ratio) {
_aspect_ratio_transform = TransformState::make_scale(LVecBase3(aspect_ratio, 1, 1));
_last_aspect_ratio = aspect_ratio;
}
data._net_transform = data._net_transform->compose(_aspect_ratio_transform);
// Check to see if it's time to update.
double now = _clock_object->get_frame_time(current_thread);
double elapsed = now - _last_update;

3
panda/src/grutil/sceneGraphAnalyzerMeter.h
View File

@ -72,6 +72,9 @@ private:
PandaNode *_node;
ClockObject *_clock_object;
PN_stdfloat _last_aspect_ratio;
CPT(TransformState) _aspect_ratio_transform;
static PStatCollector _show_analyzer_pcollector;
public: