mirror of
https://github.com/ZDoom/raze-gles.git
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365 lines
No EOL
10 KiB
C++
365 lines
No EOL
10 KiB
C++
/*
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** OpenGL debugging support functions
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** Copyright (c) 2016-2020 Magnus Norddahl
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any damages
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** arising from the use of this software.
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**
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** Permission is granted to anyone to use this software for any purpose,
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** including commercial applications, and to alter it and redistribute it
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** freely, subject to the following restrictions:
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**
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** 1. The origin of this software must not be misrepresented; you must not
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** claim that you wrote the original software. If you use this software
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** in a product, an acknowledgment in the product documentation would be
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** appreciated but is not required.
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** 2. Altered source versions must be plainly marked as such, and must not be
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** misrepresented as being the original software.
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** 3. This notice may not be removed or altered from any source distribution.
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*/
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#include "templates.h"
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#include "gl_system.h"
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#include "gl_debug.h"
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#include "stats.h"
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#include "printf.h"
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#include <set>
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#include <string>
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#include <vector>
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CUSTOM_CVAR(Int, gl_debug_level, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
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{
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if (!OpenGLRenderer::FGLDebug::HasDebugApi())
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{
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Printf("No OpenGL debug support detected.\n");
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}
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}
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CVAR(Bool, gl_debug_breakpoint, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG);
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extern bool gpuStatActive;
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extern bool keepGpuStatActive;
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extern FString gpuStatOutput;
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namespace OpenGLRenderer
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{
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namespace
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{
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std::vector<std::pair<FString, GLuint>> timeElapsedQueries;
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}
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//-----------------------------------------------------------------------------
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//
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// Updates OpenGL debugging state
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//
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//-----------------------------------------------------------------------------
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void FGLDebug::Update()
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{
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gpuStatOutput = "";
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for (auto &query : timeElapsedQueries)
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{
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GLuint timeElapsed = 0;
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glGetQueryObjectuiv(query.second, GL_QUERY_RESULT, &timeElapsed);
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glDeleteQueries(1, &query.second);
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FString out;
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out.Format("%s=%04.2f ms\n", query.first.GetChars(), timeElapsed / 1000000.0f);
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gpuStatOutput += out;
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}
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timeElapsedQueries.clear();
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gpuStatActive = keepGpuStatActive;
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keepGpuStatActive = false;
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if (!HasDebugApi())
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return;
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SetupBreakpointMode();
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UpdateLoggingLevel();
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OutputMessageLog();
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}
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//-----------------------------------------------------------------------------
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//
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// Label objects so they are referenced by name in debug messages and in
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// OpenGL debuggers (renderdoc)
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//
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//-----------------------------------------------------------------------------
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void FGLDebug::LabelObject(GLenum type, GLuint handle, const char *name)
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{
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if (HasDebugApi() && gl_debug_level != 0)
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{
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glObjectLabel(type, handle, -1, name);
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}
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}
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void FGLDebug::LabelObjectPtr(void *ptr, const char *name)
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{
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if (HasDebugApi() && gl_debug_level != 0)
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{
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glObjectPtrLabel(ptr, -1, name);
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}
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}
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//-----------------------------------------------------------------------------
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//
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// Marks which render pass/group is executing commands so that debuggers can
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// display this information
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//
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//-----------------------------------------------------------------------------
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void FGLDebug::PushGroup(const FString &name)
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{
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if (HasDebugApi() && gl_debug_level != 0)
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{
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glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 0, (GLsizei)name.Len(), name.GetChars());
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}
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if (gpuStatActive)
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{
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GLuint queryHandle = 0;
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glGenQueries(1, &queryHandle);
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glBeginQuery(GL_TIME_ELAPSED, queryHandle);
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timeElapsedQueries.push_back({ name, queryHandle });
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}
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}
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void FGLDebug::PopGroup()
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{
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if (HasDebugApi() && gl_debug_level != 0)
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{
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glPopDebugGroup();
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}
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if (gpuStatActive)
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{
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glEndQuery(GL_TIME_ELAPSED);
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}
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}
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//-----------------------------------------------------------------------------
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//
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// Turns on synchronous debugging on and off based on gl_debug_breakpoint
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//
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// Allows getting the debugger to break exactly at the OpenGL function emitting
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// a message.
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//
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//-----------------------------------------------------------------------------
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void FGLDebug::SetupBreakpointMode()
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{
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if (mBreakpointMode != gl_debug_breakpoint)
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{
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if (gl_debug_breakpoint)
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{
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glDebugMessageCallback(&FGLDebug::DebugCallback, this);
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glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
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}
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else
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{
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glDebugMessageCallback(nullptr, nullptr);
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glDisable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
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}
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mBreakpointMode = gl_debug_breakpoint;
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}
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}
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//-----------------------------------------------------------------------------
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//
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// Tells OpenGL which debug messages we are interested in
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//
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//-----------------------------------------------------------------------------
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void FGLDebug::UpdateLoggingLevel()
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{
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const GLenum level = gl_debug_level;
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if (level != mCurrentLevel)
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{
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glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_HIGH, 0, nullptr, level > 0);
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glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_MEDIUM, 0, nullptr, level > 1);
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glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_LOW, 0, nullptr, level > 2);
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glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_NOTIFICATION, 0, nullptr, level > 3);
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mCurrentLevel = level;
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}
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}
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//-----------------------------------------------------------------------------
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//
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// The log may already contain entries for a debug level we are no longer
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// interested in..
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//
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//-----------------------------------------------------------------------------
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bool FGLDebug::IsFilteredByDebugLevel(GLenum severity)
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{
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int severityLevel = 0;
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switch (severity)
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{
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case GL_DEBUG_SEVERITY_HIGH: severityLevel = 1; break;
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case GL_DEBUG_SEVERITY_MEDIUM: severityLevel = 2; break;
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case GL_DEBUG_SEVERITY_LOW: severityLevel = 3; break;
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case GL_DEBUG_SEVERITY_NOTIFICATION: severityLevel = 4; break;
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}
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return severityLevel > (int)gl_debug_level;
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}
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//-----------------------------------------------------------------------------
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//
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// Prints all logged messages to the console
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//
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//-----------------------------------------------------------------------------
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void FGLDebug::OutputMessageLog()
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{
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if (mCurrentLevel <= 0)
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return;
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GLint maxDebugMessageLength = 0;
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glGetIntegerv(GL_MAX_DEBUG_MESSAGE_LENGTH, &maxDebugMessageLength);
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const int maxMessages = 50;
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const int messageLogSize = maxMessages * maxDebugMessageLength;
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TArray<GLenum> sources, types, severities;
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TArray<GLuint> ids;
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TArray<GLsizei> lengths;
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TArray<GLchar> messageLog;
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sources.Resize(maxMessages);
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types.Resize(maxMessages);
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severities.Resize(maxMessages);
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ids.Resize(maxMessages);
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lengths.Resize(maxMessages);
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messageLog.Resize(messageLogSize);
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while (true)
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{
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GLuint numMessages = glGetDebugMessageLog(maxMessages, messageLogSize, &sources[0], &types[0], &ids[0], &severities[0], &lengths[0], &messageLog[0]);
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if (numMessages <= 0) break;
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GLsizei offset = 0;
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for (GLuint i = 0; i < numMessages; i++)
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{
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if (!IsFilteredByDebugLevel(severities[i]))
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PrintMessage(sources[i], types[i], ids[i], severities[i], lengths[i], &messageLog[offset]);
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offset += lengths[i];
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}
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}
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}
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//-----------------------------------------------------------------------------
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//
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// Print a single message to the console
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//
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//-----------------------------------------------------------------------------
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void FGLDebug::PrintMessage(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message)
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{
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if (type == GL_DEBUG_TYPE_PUSH_GROUP || type == GL_DEBUG_TYPE_POP_GROUP)
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return;
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const int maxMessages = 50;
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static int messagesPrinted = 0;
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if (messagesPrinted > maxMessages)
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return;
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FString msg(message, length);
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static std::set<std::string> seenMessages;
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bool alreadySeen = !seenMessages.insert(msg.GetChars()).second;
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if (alreadySeen)
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return;
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messagesPrinted++;
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if (messagesPrinted == maxMessages)
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{
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Printf("Max OpenGL debug messages reached. Suppressing further output.\n");
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}
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else if (messagesPrinted < maxMessages)
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{
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FString sourceStr = SourceToString(source);
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FString typeStr = TypeToString(type);
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FString severityStr = SeverityToString(severity);
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if (type != GL_DEBUG_TYPE_OTHER)
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Printf("[%s] %s, %s: %s\n", sourceStr.GetChars(), severityStr.GetChars(), typeStr.GetChars(), msg.GetChars());
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else
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Printf("[%s] %s: %s\n", sourceStr.GetChars(), severityStr.GetChars(), msg.GetChars());
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}
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}
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//-----------------------------------------------------------------------------
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//
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// OpenGL callback function used when synchronous debugging is enabled
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//
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//-----------------------------------------------------------------------------
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void FGLDebug::DebugCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, const void *userParam)
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{
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if (IsFilteredByDebugLevel(severity))
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return;
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PrintMessage(source, type, id, severity, length, message);
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assert(severity == GL_DEBUG_SEVERITY_NOTIFICATION);
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}
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//-----------------------------------------------------------------------------
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//
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// Enum to string helpers
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//
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//-----------------------------------------------------------------------------
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FString FGLDebug::SourceToString(GLenum source)
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{
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FString s;
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switch (source)
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{
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case GL_DEBUG_SOURCE_API: s = "api"; break;
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case GL_DEBUG_SOURCE_WINDOW_SYSTEM: s = "window system"; break;
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case GL_DEBUG_SOURCE_SHADER_COMPILER: s = "shader compiler"; break;
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case GL_DEBUG_SOURCE_THIRD_PARTY: s = "third party"; break;
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case GL_DEBUG_SOURCE_APPLICATION: s = "application"; break;
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case GL_DEBUG_SOURCE_OTHER: s = "other"; break;
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default: s.Format("%d", (int)source);
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}
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return s;
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}
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FString FGLDebug::TypeToString(GLenum type)
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{
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FString s;
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switch (type)
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{
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case GL_DEBUG_TYPE_ERROR: s = "error"; break;
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case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: s = "deprecated"; break;
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case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR: s = "undefined"; break;
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case GL_DEBUG_TYPE_PORTABILITY: s = "portability"; break;
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case GL_DEBUG_TYPE_PERFORMANCE: s = "performance"; break;
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case GL_DEBUG_TYPE_MARKER: s = "marker"; break;
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case GL_DEBUG_TYPE_PUSH_GROUP: s = "push group"; break;
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case GL_DEBUG_TYPE_POP_GROUP: s = "pop group"; break;
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case GL_DEBUG_TYPE_OTHER: s = "other"; break;
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default: s.Format("%d", (int)type);
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}
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return s;
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}
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FString FGLDebug::SeverityToString(GLenum severity)
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{
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FString s;
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switch (severity)
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{
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case GL_DEBUG_SEVERITY_LOW: s = "low severity"; break;
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case GL_DEBUG_SEVERITY_MEDIUM: s = "medium severity"; break;
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case GL_DEBUG_SEVERITY_HIGH: s = "high severity"; break;
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case GL_DEBUG_SEVERITY_NOTIFICATION: s = "notification"; break;
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default: s.Format("%d", (int)severity);
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}
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return s;
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}
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} |