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https://github.com/MobileGL-Dev/MobileGL
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swung0x48andClaude Fable 5
08e808ef20
- GLContext::MarkBufferObjectForDeletion now detaches the deleted buffer only from the currently bound VAO (GL 4.6 5.1.2 semantics; other VAOs keep their shared_ptr attachments alive). The old every-VAO scan was O(VAOs) per delete - with one VAO per chunk section, vanilla chunk churn made it dominate the render thread and FPS decay over minutes. - Bump FastSTL: erase(key) destroys in place instead of building the discarded successor iterator (a linear bucket-array scan), and switch the buffer/framebuffer/renderbuffer deletion paths to the key overload. Together these removed the 34% render-thread deletion overhead measured in aged vanilla sessions (simpleperf, Adreno 830 / DirectVulkan). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
74 lines
2.8 KiB
C++
74 lines
2.8 KiB
C++
// MobileGL - MobileGL/MG_State/GLState/RenderbufferState/RenderbufferState.cpp
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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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#include "RenderbufferState.h"
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#include "MG_Util/Types.h"
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namespace MobileGL::MG_State::GLState {
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RenderbufferState::RenderbufferState() : m_indexGenerator(1024, 1) {
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for (SizeT i = 0; i < m_bindingSlots.size(); ++i) {
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m_bindingSlots[i] = BindingSlot<RenderbufferObject>(static_cast<RenderbufferTarget>(i));
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}
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}
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const SharedPtr<RenderbufferObject>& RenderbufferState::GetRenderbufferObject(Uint index) {
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auto it = m_renderbufferObjects.find(index);
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if (it != m_renderbufferObjects.end()) {
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return it->second;
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}
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static SharedPtr<RenderbufferObject> nullRenderbufferObject = nullptr;
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return nullRenderbufferObject;
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}
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void RenderbufferState::GenerateNames(Uint number, Vector<Uint>& renderbuffers) {
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renderbuffers.resize(number);
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m_indexGenerator.Generate(number, renderbuffers.data());
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}
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const SharedPtr<RenderbufferObject>& RenderbufferState::CreateRenderbufferObject(Uint index) {
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auto& bufferObject = m_renderbufferObjects[index];
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if (!bufferObject) {
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bufferObject = MakeShared<RenderbufferObject>(index);
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}
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return bufferObject;
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}
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BindingSlot<RenderbufferObject>& RenderbufferState::GetBindingSlot(RenderbufferTarget target) {
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for (auto& bindingSlot : m_bindingSlots) {
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if (bindingSlot.GetTarget() == target) {
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return bindingSlot;
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}
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}
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MOBILEGL_ASSERT(false, "Invalid RenderbufferTarget enum value: %d", static_cast<int>(target));
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return m_bindingSlots[0];
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}
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void RenderbufferState::MarkRenderbufferObjectForDeletion(Uint index) {
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if (m_indexGenerator.IsValid(index)) {
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auto it = m_renderbufferObjects.find(index);
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if (it != m_renderbufferObjects.end()) {
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for (auto& bindingSlot : m_bindingSlots) {
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if (bindingSlot.GetBoundObject() == it->second) {
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bindingSlot.Bind(nullptr);
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}
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}
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m_renderbufferObjects.erase(index);
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}
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m_indexGenerator.Delete(index);
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}
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}
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Bool RenderbufferState::ValidateName(Uint index) const {
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return m_indexGenerator.IsValid(index);
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}
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Bool RenderbufferState::ValidateRenderbufferObject(Uint index) const {
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return m_renderbufferObjects.find(index) != m_renderbufferObjects.end();
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}
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} // namespace MobileGL::MG_State::GLState
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