/*-------------------------------------------------------------------------
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* drawElements Quality Program OpenGL ES Utilities
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* ------------------------------------------------
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*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*//*!
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* \file
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* \brief Buffer object wrapper.
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*//*--------------------------------------------------------------------*/
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#include "gluObjectWrapper.hpp"
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#include "gluRenderContext.hpp"
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#include "gluStrUtil.hpp"
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#include "glwFunctions.hpp"
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#include "glwEnums.hpp"
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#include "deArrayUtil.hpp"
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#include <sstream>
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namespace glu
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{
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ObjectWrapper::ObjectWrapper (const glw::Functions& gl, const ObjectTraits& traits)
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: m_gl (gl)
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, m_traits (traits)
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, m_object (0)
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{
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(gl.*traits.genFunc)(1, &m_object);
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if (m_object == 0)
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{
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const deUint32 err = gl.getError();
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const char* objectName = traits.name;
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std::ostringstream msg;
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msg << "Failed to create " << objectName << " object, got " << getErrorStr((int)err);
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if (err == GL_OUT_OF_MEMORY)
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throw OutOfMemoryError(msg.str());
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else
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throw Error((int)err, msg.str());
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}
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}
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ObjectWrapper::ObjectWrapper (const glw::Functions& gl, const ObjectTraits& traits, deUint32 object)
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: m_gl (gl)
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, m_traits (traits)
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, m_object (object)
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{
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DE_ASSERT(object != 0);
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}
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ObjectWrapper::~ObjectWrapper (void)
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{
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(m_gl.*m_traits.deleteFunc)(1, &m_object);
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}
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static const ObjectTraits s_objectTraits[OBJECTTYPE_LAST] =
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{
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{ "texture", &glw::Functions::genTextures, &glw::Functions::deleteTextures },
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{ "buffer", &glw::Functions::genBuffers, &glw::Functions::deleteBuffers },
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{ "renderbuffer", &glw::Functions::genRenderbuffers, &glw::Functions::deleteRenderbuffers },
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{ "framebuffer", &glw::Functions::genFramebuffers, &glw::Functions::deleteFramebuffers },
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{ "transform feedback", &glw::Functions::genTransformFeedbacks, &glw::Functions::deleteTransformFeedbacks },
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{ "vertex array", &glw::Functions::genVertexArrays, &glw::Functions::deleteVertexArrays },
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{ "query", &glw::Functions::genQueries, &glw::Functions::deleteQueries },
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{ "sampler", &glw::Functions::genSamplers, &glw::Functions::deleteSamplers },
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};
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const ObjectTraits& objectTraits (ObjectType type)
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{
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return de::getSizedArrayElement<OBJECTTYPE_LAST>(s_objectTraits, type);
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}
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ObjectVector::ObjectVector (const glw::Functions& gl, const ObjectTraits& traits, size_t numObjects)
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: m_gl (gl)
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, m_traits (traits)
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{
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if (numObjects > 0)
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resize(numObjects);
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}
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ObjectVector::~ObjectVector (void)
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{
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clear();
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}
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void ObjectVector::resize (size_t newSize)
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{
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const size_t oldSize = m_objects.size();
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if (newSize == 0)
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{
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clear(); // Avoid size_t (unsigned) overflow issues in delete path.
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}
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if (oldSize < newSize)
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{
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m_objects.resize(newSize, 0);
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(m_gl.*m_traits.genFunc)(glw::GLsizei(newSize - oldSize), &m_objects[oldSize]);
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}
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else if (oldSize > newSize)
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{
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(m_gl.*m_traits.deleteFunc)(glw::GLsizei(oldSize - newSize), &m_objects[newSize]);
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m_objects.resize(newSize);
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}
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}
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void ObjectVector::clear (void)
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{
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(m_gl.*m_traits.deleteFunc)(glw::GLsizei(m_objects.size()), &m_objects.front());
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m_objects.clear();
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}
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} // glu
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