/**************************************************************************** Copyright (c) 2018-2019 Xiamen Yaji Software Co., Ltd. https://axis-project.github.io/ Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ****************************************************************************/ #include "BufferGL.h" #include #include "base/CCDirector.h" #include "base/CCEventType.h" #include "base/CCEventDispatcher.h" #include "renderer/backend/opengl/MacrosGL.h" NS_AX_BACKEND_BEGIN namespace { GLenum toGLUsage(const BufferUsage& usage) { switch (usage) { case BufferUsage::STATIC: return GL_STATIC_DRAW; case BufferUsage::DYNAMIC: return GL_DYNAMIC_DRAW; default: return GL_DYNAMIC_DRAW; } } } // namespace BufferGL::BufferGL(std::size_t size, BufferType type, BufferUsage usage) : Buffer(size, type, usage) { glGenBuffers(1, &_buffer); #if AX_ENABLE_CACHE_TEXTURE_DATA _backToForegroundListener = EventListenerCustom::create(EVENT_RENDERER_RECREATED, [this](EventCustom*) { this->reloadBuffer(); }); Director::getInstance()->getEventDispatcher()->addEventListenerWithFixedPriority(_backToForegroundListener, -1); #endif } BufferGL::~BufferGL() { if (_buffer) glDeleteBuffers(1, &_buffer); #if AX_ENABLE_CACHE_TEXTURE_DATA AX_SAFE_DELETE_ARRAY(_data); Director::getInstance()->getEventDispatcher()->removeEventListener(_backToForegroundListener); #endif } void BufferGL::usingDefaultStoredData(bool needDefaultStoredData) { #if AX_ENABLE_CACHE_TEXTURE_DATA _needDefaultStoredData = needDefaultStoredData; #endif } #if AX_ENABLE_CACHE_TEXTURE_DATA void BufferGL::reloadBuffer() { glGenBuffers(1, &_buffer); if (!_needDefaultStoredData) return; _bufferAlreadyFilled = true; updateData(_data, _bufferAllocated); } void BufferGL::fillBuffer(void* data, std::size_t offset, std::size_t size) { if (_bufferAlreadyFilled || !_needDefaultStoredData || BufferUsage::STATIC != _usage) return; if (_data == nullptr) { _data = new char[_bufferAllocated]; } memcpy(_data + offset, data, size); } #endif void BufferGL::updateData(void* data, std::size_t size) { assert(size && size <= _size); if (_buffer) { if (BufferType::VERTEX == _type) { glBindBuffer(GL_ARRAY_BUFFER, _buffer); glBufferData(GL_ARRAY_BUFFER, size, data, toGLUsage(_usage)); } else { glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _buffer); glBufferData(GL_ELEMENT_ARRAY_BUFFER, size, data, toGLUsage(_usage)); } CHECK_GL_ERROR_DEBUG(); _bufferAllocated = size; #if AX_ENABLE_CACHE_TEXTURE_DATA fillBuffer(data, 0, size); #endif } } void BufferGL::updateSubData(void* data, std::size_t offset, std::size_t size) { CCASSERT(_bufferAllocated != 0, "updateData should be invoke before updateSubData"); CCASSERT(offset + size <= _bufferAllocated, "buffer size overflow"); if (_buffer) { CHECK_GL_ERROR_DEBUG(); if (BufferType::VERTEX == _type) { glBindBuffer(GL_ARRAY_BUFFER, _buffer); glBufferSubData(GL_ARRAY_BUFFER, offset, size, data); } else { glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _buffer); glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, offset, size, data); } #if AX_ENABLE_CACHE_TEXTURE_DATA fillBuffer(data, offset, size); #endif CHECK_GL_ERROR_DEBUG(); } } NS_AX_BACKEND_END