mirror of
https://github.com/smallmain/cocos-enhance-kit.git
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79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
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/****************************************************************************
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Copyright (c) 2018 Xiamen Yaji Software Co., Ltd.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "RenderBuffer.h"
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#include "GFXUtils.h"
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RENDERER_BEGIN
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RenderBuffer::RenderBuffer()
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: _device(nullptr)
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, _format(Format::RGBA4)
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, _width(0)
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, _height(0)
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{
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}
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RenderBuffer::~RenderBuffer()
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{
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if (_glID == 0)
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{
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RENDERER_LOGE("The render-buffer (%p) is invalid!", this);
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return;
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}
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GL_CHECK(glDeleteRenderbuffers(1, &_glID));
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}
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bool RenderBuffer::init(DeviceGraphics* device, Format format, uint16_t width, uint16_t height)
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{
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_device = device;
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_format = format;
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_width = width;
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_height = height;
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GLint oldRenderBuffer;
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glGetIntegerv(GL_RENDERBUFFER_BINDING, &oldRenderBuffer);
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GL_CHECK(glGenRenderbuffers(1, &_glID));
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GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, _glID));
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GL_CHECK(glRenderbufferStorage(GL_RENDERBUFFER, (GLenum)format, width, height));
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GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, oldRenderBuffer));
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return true;
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}
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bool RenderBuffer::update (uint16_t width, uint16_t height) {
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_width = width;
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_height = height;
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GLint oldRenderBuffer;
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glGetIntegerv(GL_RENDERBUFFER_BINDING, &oldRenderBuffer);
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GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, _glID));
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GL_CHECK(glRenderbufferStorage(GL_RENDERBUFFER, (GLenum)_format, width, height));
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GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, oldRenderBuffer));
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return true;
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}
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RENDERER_END
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