cleanup and refactoring

raytracer/nvpro_core/nvgl/profiler_gl.cpp

@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2014-2021, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-FileCopyrightText: Copyright (c) 2014-2021 NVIDIA CORPORATION
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+
+#include "profiler_gl.hpp"
+#include <assert.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+
+namespace nvgl {
+
+void ProfilerGL::resizeQueries()
+{
+  uint32_t timers = getRequiredTimers();
+  uint32_t old    = (uint32_t)m_queries.size();
+
+  if(old == timers)
+  {
+    return;
+  }
+
+  m_queries.resize(timers, 0);
+  uint32_t add = timers - old;
+  glGenQueries(add, &m_queries[old]);
+}
+
+void ProfilerGL::init()
+{
+  resizeQueries();
+}
+
+void ProfilerGL::deinit()
+{
+  if(m_queries.empty())
+    return;
+
+  glDeleteQueries((GLuint)m_queries.size(), m_queries.data());
+  m_queries.clear();
+}
+
+
+nvh::Profiler::SectionID ProfilerGL::beginSection(const char* name, bool singleShot)
+{
+  nvh::Profiler::gpuTimeProvider_fn fnProvider = [&](SectionID i, uint32_t queryFrame, double& gpuTime) {
+    uint32_t idxBegin = getTimerIdx(i, queryFrame, true);
+    uint32_t idxEnd   = getTimerIdx(i, queryFrame, false);
+
+    GLint available = 0;
+    glGetQueryObjectiv(m_queries[idxEnd], GL_QUERY_RESULT_AVAILABLE, &available);
+
+    if(available)
+    {
+      GLuint64 beginTime;
+      GLuint64 endTime;
+      glGetQueryObjectui64v(m_queries[idxBegin], GL_QUERY_RESULT, &beginTime);
+      glGetQueryObjectui64v(m_queries[idxEnd], GL_QUERY_RESULT, &endTime);
+
+      gpuTime = double(endTime - beginTime) / double(1000);
+
+      return true;
+    }
+    else
+    {
+      return false;
+    }
+  };
+
+  SectionID slot = Profiler::beginSection(name, "GL ", fnProvider, singleShot);
+
+  if(m_queries.size() != getRequiredTimers())
+  {
+    resizeQueries();
+  }
+
+  glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 0, -1, name);
+
+  uint32_t idx = getTimerIdx(slot, getSubFrame(slot), true);
+  glQueryCounter(m_queries[idx], GL_TIMESTAMP);
+
+  return slot;
+}
+
+void ProfilerGL::endSection(SectionID slot)
+{
+  uint32_t idx = getTimerIdx(slot, getSubFrame(slot), false);
+  glQueryCounter(m_queries[idx], GL_TIMESTAMP);
+  glPopDebugGroup();
+  Profiler::endSection(slot);
+}
+
+
+}  // namespace nvgl