mirror of
https://github.com/MobileGL-Dev/MobileGL
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swung0x48
10ff5e2b18
- advertise GL_ARB_draw_indirect when supported - gate GL_ARB_base_instance on complete non-zero firstInstance semantics - synchronize Driver POST reporting - add capability and extension-advertisement regression tests
82 lines
4.3 KiB
C++
82 lines
4.3 KiB
C++
// MobileGL - MobileGL/MG_Backend/DirectGLES/BackendObject_DirectGLES.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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#include "../BackendObject.h"
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#include <MG_Util/BackendLoaders/OpenGL/Loader.h>
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namespace MobileGL::MG_Backend::DirectGLES {
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// Populates the same format-capability cache used by backend startup. The caller
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// must keep the supplied GLES context current for the duration of this call.
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void PopulateFormatCapabilities(const MG_External::GLESFunctionsTable& gl,
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const MG_External::GLESCapabilities& capabilities,
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FormatCapabilityCache& cache);
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class BackendObject_DirectGLES : public BackendObject {
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public:
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~BackendObject_DirectGLES() override;
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void Initialize() override;
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Bool InitCapabilities() override;
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Bool InitWindowSurface() override;
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Bool InitializeEGLDisplay(EGLDisplay dpy, EGLint* major, EGLint* minor) override;
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Bool CreateEGLWindowSurface(EGLSurface surface, const WindowHandle& handle) override;
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Bool CreateEGLPbufferSurface(EGLSurface surface, EGLint width, EGLint height) override;
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Bool MakeEGLCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx) override;
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Bool SwapEGLBuffers(EGLDisplay dpy, EGLSurface draw) override;
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void ReleaseEGLSurface(EGLSurface surface) override;
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void ReleaseEGLResources() override;
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const RendererInfo& GetRendererInfo() const override;
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String GetBackendAPIVersionString() const override;
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const GlobalBackendFunctionsTable& GetBackendFunctions() const override;
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const DynamicBackendParameters& GetDynamicParameters() const override;
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BackendType GetBackendType() const override;
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const MG_External::GLESFunctionsTable& GetGLESFunctions() const;
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const MG_External::EGLFunctionsTable& GetEGLFunctions() const;
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void ApplyGLESCapabilitiesForTesting(const MG_External::GLESCapabilities& capabilities);
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private:
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void UpdateDynamicBackendParameters();
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Bool InitPbufferSurface(EGLint width, EGLint height) override;
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void OnEGLSurfaceReleased(EGLSurface surface) override;
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Bool m_initialized = false;
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MG_External::EGLFunctionsTable m_EGLFunctions;
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MG_External::GLESFunctionsTable m_GLESFunctions;
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MG_External::GLESCapabilities m_GLESCapabilities;
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DynamicBackendParameters m_dynamicParameters;
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};
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// Single-source-of-truth helpers shared with the driver POST
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// (MG_Util/SelfTest/DriverPost.cpp), so the identity strings and extension list
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// MobileGL reports to applications on this backend cannot drift from what the
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// POST screen shows.
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// Static identity of the Espryt renderer (renderer/backend names, target GL/GLSL
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// versions, ExtraVendor). The Extensions vector inside is live backend state that
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// is reconciled after capability init; callers that need the advertised list for
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// a known capability set must use BuildAdvertisedExtensions instead.
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const RendererInfo& GetRendererIdentity();
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// The full OpenGL extension list Espryt advertises (glGetString(GL_EXTENSIONS))
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// for a device whose timer queries / anisotropic filtering / native indirect draws /
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// non-zero indirect baseInstance semantics are (or are not) usable.
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// The MOBILEGL_DISABLE_TIMERQUERY escape hatch is applied inside.
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Vector<GLExtension> BuildAdvertisedExtensions(Bool timerQueriesSupported, Bool anisotropicFilteringSupported,
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Bool drawIndirectSupported,
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Bool nonZeroIndirectBaseInstanceSupported);
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// Format: <OpenGL ES Renderer>, OpenGL ES <Major>.<Minor> — the exact string an
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// initialized backend returns from GetBackendAPIVersionString (and that ends up
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// inside the application-visible GL_RENDERER string).
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String FormatBackendAPIVersionString(const String& glesRendererString, Int glesMajor, Int glesMinor);
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} // namespace MobileGL::MG_Backend::DirectGLES
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