264 lines
10 KiB
C++
264 lines
10 KiB
C++
//
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// KRModelManager.cpp
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// KREngine
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//
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// Copyright 2012 Kearwood Gilbert. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other materials
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// provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// The views and conclusions contained in the software and documentation are those of the
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// authors and should not be interpreted as representing official policies, either expressed
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// or implied, of Kearwood Gilbert.
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//
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#include "KRModelManager.h"
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#include <assert.h>
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#import "KRModel.h"
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KRModelManager::KRModelManager(KRContext &context) : KRContextObject(context) {
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m_currentVBO.handle = 0;
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m_currentVBO.data = NULL;
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m_vboMemUsed = 0;
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m_bVBOAttribEnabled_Vertex = false;
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m_bVBOAttribEnabled_Normal = false;
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m_bVBOAttribEnabled_Tangent = false;
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m_bVBOAttribEnabled_UVA = false;
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m_bVBOAttribEnabled_UVB = false;
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}
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KRModelManager::~KRModelManager() {
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for(std::multimap<std::string, KRModel *>::iterator itr = m_models.begin(); itr != m_models.end(); ++itr){
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delete (*itr).second;
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}
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m_models.empty();
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}
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KRModel *KRModelManager::loadModel(const char *szName, KRDataBlock *pData) {
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std::string lowerName = szName;
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std::transform(lowerName.begin(), lowerName.end(),
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lowerName.begin(), ::tolower);
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KRModel *pModel = new KRModel(*m_pContext, lowerName, pData);
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m_models.insert(std::pair<std::string, KRModel *>(pModel->getName(), pModel));
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return pModel;
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}
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std::vector<KRModel *> KRModelManager::getModel(const char *szName) {
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std::string lowerName = szName;
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std::transform(lowerName.begin(), lowerName.end(),
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lowerName.begin(), ::tolower);
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std::vector<KRModel *> matching_models;
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std::pair<std::multimap<std::string, KRModel *>::iterator, std::multimap<std::string, KRModel *>::iterator> range = m_models.equal_range(lowerName);
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for(std::multimap<std::string, KRModel *>::iterator itr_match = range.first; itr_match != range.second; itr_match++) {
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matching_models.push_back(itr_match->second);
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}
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std::sort(matching_models.begin(), matching_models.end(), KRModel::lod_sort_predicate);
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if(matching_models.size() == 0) {
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fprintf(stderr, "ERROR: Model not found: %s\n", lowerName.c_str());
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}
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return matching_models;
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}
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KRModel *KRModelManager::getFirstModel() {
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static std::map<std::string, KRModel *>::iterator model_itr = m_models.begin();
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return (*model_itr).second;
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}
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std::multimap<std::string, KRModel *> KRModelManager::getModels() {
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return m_models;
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}
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void KRModelManager::unbindVBO() {
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if(m_currentVBO.data != NULL) {
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GLDEBUG(glBindBuffer(GL_ARRAY_BUFFER, 0));
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m_currentVBO.size = 0;
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m_currentVBO.data = NULL;
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m_currentVBO.handle = -1;
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}
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}
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void KRModelManager::bindVBO(GLvoid *data, GLsizeiptr size, bool enable_vertex, bool enable_normal, bool enable_tangent, bool enable_uva, bool enable_uvb) {
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if(m_currentVBO.data != data || m_currentVBO.size != size) {
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if(m_vbosActive.find(data) != m_vbosActive.end()) {
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m_currentVBO = m_vbosActive[data];
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GLDEBUG(glBindBuffer(GL_ARRAY_BUFFER, m_currentVBO.handle));
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} else if(m_vbosPool.find(data) != m_vbosPool.end()) {
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m_currentVBO = m_vbosPool[data];
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m_vbosPool.erase(data);
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m_vbosActive[data] = m_currentVBO;
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GLDEBUG(glBindBuffer(GL_ARRAY_BUFFER, m_currentVBO.handle));
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} else {
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m_vboMemUsed += size;
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while(m_vbosPool.size() + m_vbosActive.size() >= KRENGINE_MAX_VBO_HANDLES || m_vboMemUsed >= KRENGINE_MAX_VBO_MEM) {
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if(m_vbosPool.empty()) {
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fprintf(stderr, "flushBuffers due to VBO exhaustion...\n");
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m_pContext->rotateBuffers(false);
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}
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std::map<GLvoid *, vbo_info_type>::iterator first_itr = m_vbosPool.begin();
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vbo_info_type firstVBO = first_itr->second;
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GLDEBUG(glDeleteBuffers(1, &firstVBO.handle));
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m_vboMemUsed -= firstVBO.size;
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m_vbosPool.erase(first_itr);
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fprintf(stderr, "VBO Swapping...\n");
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}
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m_currentVBO.handle = -1;
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GLDEBUG(glGenBuffers(1, &m_currentVBO.handle));
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GLDEBUG(glBindBuffer(GL_ARRAY_BUFFER, m_currentVBO.handle));
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GLDEBUG(glBufferData(GL_ARRAY_BUFFER, size, data, GL_STATIC_DRAW));
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//fprintf(stderr, "glBufferData(GL_ARRAY_BUFFER, %ld, data, GL_STATIC_DRAW)\n", size);
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m_currentVBO.size = size;
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m_currentVBO.data = data;
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m_vbosActive[data] = m_currentVBO;
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}
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configureAttribs(enable_vertex, enable_normal, enable_tangent, enable_uva, enable_uvb);
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}
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// fprintf(stderr, "VBO Mem: %i Kbyte Texture Mem: %i Kbyte\n", (int)m_pContext->getModelManager()->getMemUsed() / 1024, (int)m_pContext->getTextureManager()->getMemUsed() / 1024);
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}
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void KRModelManager::configureAttribs(bool enable_vertex, bool enable_normal, bool enable_tangent, bool enable_uva, bool enable_uvb)
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{
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bool reconfigured = false;
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if(m_bVBOAttribEnabled_Vertex != enable_vertex) {
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if(enable_vertex) {
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GLDEBUG(glEnableVertexAttribArray(KRShader::KRENGINE_ATTRIB_VERTEX));
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} else {
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GLDEBUG(glDisableVertexAttribArray(KRShader::KRENGINE_ATTRIB_VERTEX));
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}
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m_bVBOAttribEnabled_Vertex = enable_vertex;
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reconfigured = true;
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}
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if(m_bVBOAttribEnabled_Normal != enable_normal) {
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if(enable_normal) {
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GLDEBUG(glEnableVertexAttribArray(KRShader::KRENGINE_ATTRIB_NORMAL));
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} else {
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GLDEBUG(glDisableVertexAttribArray(KRShader::KRENGINE_ATTRIB_NORMAL));
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}
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m_bVBOAttribEnabled_Normal = enable_normal;
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reconfigured = true;
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}
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if(m_bVBOAttribEnabled_Tangent != enable_tangent) {
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if(enable_tangent) {
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GLDEBUG(glEnableVertexAttribArray(KRShader::KRENGINE_ATTRIB_TANGENT));
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} else {
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GLDEBUG(glDisableVertexAttribArray(KRShader::KRENGINE_ATTRIB_TANGENT));
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}
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m_bVBOAttribEnabled_Tangent = enable_tangent;
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reconfigured = true;
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}
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if(m_bVBOAttribEnabled_UVA != enable_uva) {
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if(enable_uva) {
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GLDEBUG(glEnableVertexAttribArray(KRShader::KRENGINE_ATTRIB_TEXUVA));
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} else {
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GLDEBUG(glDisableVertexAttribArray(KRShader::KRENGINE_ATTRIB_TEXUVA));
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}
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m_bVBOAttribEnabled_UVA = enable_uva;
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reconfigured = true;
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}
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if(m_bVBOAttribEnabled_UVB != enable_uvb) {
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if(enable_uvb) {
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GLDEBUG(glEnableVertexAttribArray(KRShader::KRENGINE_ATTRIB_TEXUVB));
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} else {
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GLDEBUG(glDisableVertexAttribArray(KRShader::KRENGINE_ATTRIB_TEXUVB));
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}
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m_bVBOAttribEnabled_UVB = enable_uvb;
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reconfigured = true;
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}
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if(reconfigured || true) {
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int data_size = 0;
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if(enable_vertex) {
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data_size += sizeof(KRModel::KRVector3D);
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}
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if(enable_normal) {
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data_size += sizeof(KRModel::KRVector3D);
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}
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if(enable_tangent) {
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data_size += sizeof(KRModel::KRVector3D);
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}
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if(enable_uva) {
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data_size += sizeof(KRModel::TexCoord);
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}
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if(enable_uvb) {
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data_size += sizeof(KRModel::TexCoord);
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}
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int offset = 0;
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if(enable_vertex) {
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GLDEBUG(glVertexAttribPointer(KRShader::KRENGINE_ATTRIB_VERTEX, 3, GL_FLOAT, 0, data_size, BUFFER_OFFSET(offset)));
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offset += sizeof(KRModel::KRVector3D);
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}
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if(enable_normal) {
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GLDEBUG(glVertexAttribPointer(KRShader::KRENGINE_ATTRIB_NORMAL, 3, GL_FLOAT, 0, data_size, BUFFER_OFFSET(offset)));
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offset += sizeof(KRModel::KRVector3D);
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}
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if(enable_tangent) {
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GLDEBUG(glVertexAttribPointer(KRShader::KRENGINE_ATTRIB_TANGENT, 3, GL_FLOAT, 0, data_size, BUFFER_OFFSET(offset)));
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offset += sizeof(KRModel::KRVector3D);
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}
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if(enable_uva) {
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GLDEBUG(glVertexAttribPointer(KRShader::KRENGINE_ATTRIB_TEXUVA, 2, GL_FLOAT, 0, data_size, BUFFER_OFFSET(offset)));
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offset += sizeof(KRModel::TexCoord);
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}
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if(enable_uvb) {
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GLDEBUG(glVertexAttribPointer(KRShader::KRENGINE_ATTRIB_TEXUVB, 2, GL_FLOAT, 0, data_size, BUFFER_OFFSET(offset)));
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offset += sizeof(KRModel::TexCoord);
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}
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}
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}
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long KRModelManager::getMemUsed()
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{
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return m_vboMemUsed;
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}
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void KRModelManager::rotateBuffers(bool new_frame)
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{
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m_vbosPool.insert(m_vbosActive.begin(), m_vbosActive.end());
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m_vbosActive.clear();
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if(m_currentVBO.data != NULL) {
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// Ensure that the currently active VBO does not get flushed to free memory
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m_vbosPool.erase(m_currentVBO.data);
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m_vbosActive[m_currentVBO.data] = m_currentVBO;
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}
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}
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