""" RenderPipeline Copyright (c) 2014-2016 tobspr Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. """ from __future__ import division from panda3d.core import ComputeNode, Vec4, Vec3, PTAInt, PTAFloat from rpcore.gui.sprite import Sprite from rpcore.gui.text import Text from rpcore.rpobject import RPObject from rpcore.image import Image from rpcore.globals import Globals from rpcore.loader import RPLoader class FPSChart(RPObject): """ Widget to show the FPS as a chart """ def __init__(self, pipeline, parent): """ Inits the widget """ RPObject.__init__(self) self._pipeline = pipeline self._parent = parent self._node = self._parent.attach_new_node("FPSChartNode") self._create_components() def _create_components(self): """ Internal method to init the widgets components """ # Create the buffer which stores the last FPS values self._storage_buffer = Image.create_buffer("FPSValues", 250, "R16") self._storage_buffer.set_clear_color(Vec4(0)) self._storage_buffer.clear_image() self._store_index = PTAInt.empty_array(1) self._store_index[0] = 0 self._current_ftime = PTAFloat.empty_array(1) self._current_ftime[0] = 16.0 self._chart_ms_max = PTAFloat.empty_array(1) self._chart_ms_max[0] = 40 # Create the texture where the gui component is rendered inside self._display_tex = Image.create_2d("FPSChartRender", 250, 120, "RGBA8") self._display_tex.set_clear_color(Vec4(0)) self._display_tex.clear_image() self._display_img = Sprite( image=self._display_tex, parent=self._node, w=250, h=120, x=10, y=10) # Defer the further loading Globals.base.taskMgr.doMethodLater(0.3, self._late_init, "FPSChartInit") def _late_init(self, task): """ Gets called after the pipeline was initialized """ self._display_txt = Text( text="40 ms", parent=self._node, x=20, y=25, size=13, color=Vec3(1), may_change=True) self._display_txt_bottom = Text( text="0 ms", parent=self._node, x=20, y=120, size=13, color=Vec3(1), may_change=True) # Create the shader which generates the visualization texture self._cshader_node = ComputeNode("FPSChartUpdateChart") self._cshader_node.add_dispatch(250 // 10, 120 // 4, 1) self._cshader_np = self._node.attach_new_node(self._cshader_node) self._cshader = RPLoader.load_shader("/$$rp/shader/fps_chart.compute.glsl") self._cshader_np.set_shader(self._cshader) self._cshader_np.set_shader_inputs( DestTex=self._display_tex, FPSValues=self._storage_buffer, index=self._store_index, maxMs=self._chart_ms_max) self._update_shader_node = ComputeNode("FPSChartUpdateValues") self._update_shader_node.add_dispatch(1, 1, 1) self._update_shader_np = self._node.attach_new_node(self._update_shader_node) self._ushader = RPLoader.load_shader("/$$rp/shader/fps_chart_update.compute.glsl") self._update_shader_np.set_shader(self._ushader) self._update_shader_np.set_shader_inputs( DestTex=self._storage_buffer, index=self._store_index, currentData=self._current_ftime) Globals.base.addTask(self._update, "UpdateFPSChart", sort=-50) return task.done def _update(self, task): """ Updates the widget """ self._store_index[0] = (self._store_index[0] + 1) % 250 self._current_ftime[0] = Globals.clock.get_dt() * 1000.0 avg_fps = Globals.clock.get_average_frame_rate() if avg_fps > 122: self._chart_ms_max[0] = 10.0 elif avg_fps > 62: self._chart_ms_max[0] = 20.0 elif avg_fps > 32: self._chart_ms_max[0] = 40.0 elif avg_fps > 15: self._chart_ms_max[0] = 70.0 else: self._chart_ms_max[0] = 200.0 self._display_txt.set_text(str(int(self._chart_ms_max[0])) + " ms") return task.cont