mirror of
https://github.com/OpenSpace/OpenSpace.git
synced 2026-01-06 19:50:03 -06:00
febd298556
Also includes some additional minor changes from the original feature/solarbrowsing branch
79 lines
3.9 KiB
C++
79 lines
3.9 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2018 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#include <modules/solarbrowsing/util/pixelbufferobject.h>
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#include <iostream>
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namespace openspace {
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PixelBufferObject::PixelBufferObject(const int size) : _id(0), _size(size) {
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initialize();
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}
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PixelBufferObject::~PixelBufferObject() {
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glDeleteBuffers(1, &_id);
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}
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template<typename T>
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T* PixelBufferObject::mapToClientMemory(bool shouldOrphanData, int size) {
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if (shouldOrphanData) {
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glBufferData(GL_PIXEL_UNPACK_BUFFER, size, NULL, GL_STREAM_DRAW);
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}
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T* data = static_cast<T*>(
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glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, NULL, size,
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GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT));
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return std::move(data);
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}
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const GLuint& PixelBufferObject::id() {
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return _id;
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}
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void PixelBufferObject::releaseMappedBuffer() {
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glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER);
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}
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void PixelBufferObject::activate() {
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glBindBuffer(GL_PIXEL_UNPACK_BUFFER, _id);
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}
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void PixelBufferObject::deactivate() {
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glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
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}
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void PixelBufferObject::initialize() {
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glGenBuffers(1, &_id);
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glBindBuffer(GL_PIXEL_UNPACK_BUFFER, _id);
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glBufferData(GL_PIXEL_UNPACK_BUFFER, _size, 0, GL_STREAM_DRAW);
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glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
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}
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template unsigned char* PixelBufferObject::mapToClientMemory(bool shouldOrphanData, int size);
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template float* PixelBufferObject::mapToClientMemory(bool shouldOrphanData, int size);
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template double* PixelBufferObject::mapToClientMemory(bool shouldOrphanData, int size);
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template int* PixelBufferObject::mapToClientMemory(bool shouldOrphanData, int size);
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template unsigned int* PixelBufferObject::mapToClientMemory(bool shouldOrphanData, int size);
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template long* PixelBufferObject::mapToClientMemory(bool shouldOrphanData, int size);
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template unsigned long* PixelBufferObject::mapToClientMemory(bool shouldOrphanData, int size);
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} // namespace openspace
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