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swung0x48andClaude Fable 5
7eb3994b02
Implements GL timer queries end to end: a frontend query registry (modeled on the sync module - mutex-guarded objects wrapping opaque backend handles behind optional function pointers) serving glGenQueries/glBeginQuery/glEndQuery(GL_TIME_ELAPSED)/glQueryCounter (GL_TIMESTAMP)/glGetQueryObject*/glGetQueryiv with GL 3.3 error semantics and a graceful zero-result fallback when a backend cannot time. DirectGLES backs spans with GL_EXT_disjoint_timer_query (context- generation-stamped handles, bounded result waits). DirectVulkan gets a VkTimerQueryManager: per-frame-in-flight timestamp query pools reset at command-buffer begin (outside render passes), records harvested by frame serial before their pool recycles, elapsed = masked tick delta x timestampPeriod; handles are stamped with a renderer generation that also now guards fence syncs across renderer recreation. GL_QUERY_ COUNTER_BITS reports 0 unless the live backend can actually time (dynamic IsTimerQuerySupported hook), and a failed blocking read keeps the handle alive so the real value stays reachable once the frame submits. GL_ARB_timer_query is advertised only when the device supports timing and MOBILEGL_DISABLE_TIMERQUERY is unset - LWJGL keys Minecraft's F3 'GPU: x%' line off exactly that extension string; verified on device (Adreno 830) on both backends. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
25 lines
1.0 KiB
C++
25 lines
1.0 KiB
C++
// MobileGL - MobileGL/MG_Impl/GLImpl/Query/GL_Query.h
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// Copyright (c) 2025-2026 MobileGL-Dev
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// Licensed under the GNU Lesser General Public License v3.0:
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// https://www.gnu.org/licenses/gpl-3.0.txt
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// https://www.gnu.org/licenses/lgpl-3.0.txt
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// SPDX-License-Identifier: LGPL-3.0-only
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// End of Source File Header
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#pragma once
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#include <Includes.h>
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namespace MobileGL::MG_Impl::GLImpl {
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void GenQueries(GLsizei n, GLuint* ids);
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void DeleteQueries(GLsizei n, const GLuint* ids);
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GLboolean IsQuery(GLuint id);
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void BeginQuery(GLenum target, GLuint id);
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void EndQuery(GLenum target);
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void GetQueryiv(GLenum target, GLenum pname, GLint* params);
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void GetQueryObjectiv(GLuint id, GLenum pname, GLint* params);
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void GetQueryObjectuiv(GLuint id, GLenum pname, GLuint* params);
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void GetQueryObjecti64v(GLuint id, GLenum pname, GLint64* params);
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void GetQueryObjectui64v(GLuint id, GLenum pname, GLuint64* params);
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void QueryCounter(GLuint id, GLenum target);
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} // namespace MobileGL::MG_Impl::GLImpl
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