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Diffstat (limited to 'Source/Timing/gl_query_perf.cpp')
| -rw-r--r-- | Source/Timing/gl_query_perf.cpp | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/Source/Timing/gl_query_perf.cpp b/Source/Timing/gl_query_perf.cpp new file mode 100644 index 00000000..fd1db798 --- /dev/null +++ b/Source/Timing/gl_query_perf.cpp @@ -0,0 +1,166 @@ +//----------------------------------------------------------------------------- +// Name: gl_query_perf.cpp +// Developer: Wolfire Games LLC +// Description: +// License: Read below +//----------------------------------------------------------------------------- +// +// Copyright 2022 Wolfire Games LLC +// +// 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. +// +//----------------------------------------------------------------------------- +#include "gl_query_perf.h" + +#ifdef TIMER_QUERY_TIMING + +#include <Logging/logdata.h> +#include <Graphics/graphics.h> +#include <Utility/assert.h> +#include <Internal/filesystem.h> + +#include <opengl.h> +#include <string> + + +extern GLTimerQueryPerf* glTimingQuery; + +void GLTimerQueryPerf::Init() { + if( GLEW_ARB_timer_query ) { + perf_available = true; + + query_ids_used = 0; + query_count = 0; + frame_counter = 0; + + memset( queries, 0x0, sizeof(PerfQuery)*MAX_QUERY_COUNT ); + + glGenQueries(MAX_QUERY_COUNT, query_ids ); + CHECK_GL_ERROR(); + + std::string path = std::string(GetWritePath(CoreGameModID).c_str()) + "/gl_query_perf.perf.dat"; + my_ofstream_open( csv_output, path.c_str() ); + + begun_perf = false; + } +} + +void GLTimerQueryPerf::Finalize(){ + if( perf_available ) { + glDeleteQueries(MAX_QUERY_COUNT,query_ids); + CHECK_GL_ERROR(); + csv_output.close(); + + std::string path = std::string(GetWritePath(CoreGameModID).c_str()) + "/gl_query_perf_filenames.txt"; + LOGI << "Saved perf output names to " << path << std::endl; + std::ofstream f; + my_ofstream_open(f, path); + + std::set<const char*>::iterator nm_it; + + for( nm_it = file_names.begin(); + nm_it != file_names.end(); + nm_it++ ) { + f << (uint64_t)(*nm_it) << "," << *nm_it << std::endl; + } + f.close(); + } +} + +void GLTimerQueryPerf::PerfGPUBegin(const char* file, const int line){ + if( perf_available ) { + if( queries[query_count].query_id == 0 ) + { + GLuint query_id = query_ids[query_ids_used]; + LOG_ASSERT(begun_perf == false); + glBeginQuery(GL_TIME_ELAPSED, query_id); + CHECK_GL_ERROR(); + + queries[query_count].query_id = query_id; + queries[query_count].line = line; + queries[query_count].file = file; + queries[query_count].frame = frame_counter; + + query_ids_used++; + query_count++; + begun_perf = true; + + if( query_ids_used >= MAX_QUERY_COUNT ) + { + query_ids_used = 0; + query_count = 0; + } + } + else + { + LOGW << "Ran out of queries" << std::endl; + } + } +} + +void GLTimerQueryPerf::PerfGPUEnd( ){ + if( perf_available ) { + if( begun_perf ) { + glEndQuery(GL_TIME_ELAPSED); + CHECK_GL_ERROR(); + begun_perf = false; + } + } +} + +void GLTimerQueryPerf::PostFrameSwap(){ + if( perf_available ) { + GLint available = 0; + + /* + while (!available) { + glGetQueryObjectiv(query_ids[query_ids_used-1], GL_QUERY_RESULT_AVAILABLE, &available); + CHECK_GL_ERROR(); + } + */ + static int i = 0; + do { + PerfQuery& query = queries[i]; + + if( query.query_id != 0 ) { + glGetQueryObjectiv(query.query_id, GL_QUERY_RESULT_AVAILABLE, &available); + } else { + available = false; + } + + if( available ) { + uint64_t result; + glGetQueryObjectui64v( query.query_id, GL_QUERY_RESULT, &result ); + CHECK_GL_ERROR(); + + //LOGI << "Query " << i << " " << query.file << ":" << query.line << " " << result << std::endl; + + file_names.insert(query.file); + csv_output << query.frame << "," << 0 << "," << (uint64_t)query.file << "," << query.line << "," << result << std::endl; + + query.query_id = 0; + + i++; + if( i >= MAX_QUERY_COUNT ) { + i = 0; + } + } + } while(available); + frame_counter++; + } +} + +GLTimerQueryPerf GlTimingQuery; +GLTimerQueryPerf* glTimingQuery = &GlTimingQuery; + +#endif |