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592f811d717cd562d8f6506c89ff098e17db0262
kraken/kraken/KRMeshManager.cpp

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//
// KRMeshManager.cpp
// KREngine
//
// Copyright 2012 Kearwood Gilbert. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The views and conclusions contained in the software and documentation are those of the
// authors and should not be interpreted as representing official policies, either expressed
// or implied, of Kearwood Gilbert.
//
#include "KREngine-common.h"
#include "KRMeshManager.h"
#include "KRMesh.h"
#include "KRMeshCube.h"
#include "KRMeshQuad.h"
#include "KRMeshSphere.h"
KRMeshManager::KRMeshManager(KRContext &context) : KRResourceManager(context) {
m_currentVBO = NULL;
m_vboMemUsed = 0;
m_memoryTransferredThisFrame = 0;
m_first_frame = true;
m_streamerComplete = true;
addModel(new KRMeshCube(context));
addModel(new KRMeshQuad(context));
addModel(new KRMeshSphere(context));
m_draw_call_logging_enabled = false;
m_draw_call_log_used = false;
// ---- Initialize stock models ----
static const GLfloat _KRENGINE_VBO_3D_CUBE_VERTEX_DATA[] = {
1.0, 1.0, 1.0,
-1.0, 1.0, 1.0,
1.0,-1.0, 1.0,
-1.0,-1.0, 1.0,
-1.0,-1.0,-1.0,
-1.0, 1.0, 1.0,
-1.0, 1.0,-1.0,
1.0, 1.0, 1.0,
1.0, 1.0,-1.0,
1.0,-1.0, 1.0,
1.0,-1.0,-1.0,
-1.0,-1.0,-1.0,
1.0, 1.0,-1.0,
-1.0, 1.0,-1.0
};
KRENGINE_VBO_3D_CUBE_ATTRIBS = (1 << KRMesh::KRENGINE_ATTRIB_VERTEX);
KRENGINE_VBO_3D_CUBE_VERTICES.expand(sizeof(GLfloat) * 3 * 14);
KRENGINE_VBO_3D_CUBE_VERTICES.lock();
memcpy(KRENGINE_VBO_3D_CUBE_VERTICES.getStart(), _KRENGINE_VBO_3D_CUBE_VERTEX_DATA, sizeof(GLfloat) * 3 * 14);
KRENGINE_VBO_3D_CUBE_VERTICES.unlock();
KRENGINE_VBO_DATA_3D_CUBE_VERTICES.init(this, KRENGINE_VBO_3D_CUBE_VERTICES, KRENGINE_VBO_3D_CUBE_INDEXES, KRENGINE_VBO_3D_CUBE_ATTRIBS, false, KRVBOData::CONSTANT);
static const GLfloat _KRENGINE_VBO_2D_SQUARE_VERTEX_DATA[] = {
-1.0f, -1.0f, 0.0f, 0.0f, 0.0f,
1.0f, -1.0f, 0.0f, 1.0f, 0.0f,
-1.0f, 1.0f, 0.0f, 0.0f, 1.0f,
1.0f, 1.0f, 0.0f, 1.0f, 1.0f
};
KRENGINE_VBO_2D_SQUARE_ATTRIBS = (1 << KRMesh::KRENGINE_ATTRIB_VERTEX) | (1 << KRMesh::KRENGINE_ATTRIB_TEXUVA);
KRENGINE_VBO_2D_SQUARE_VERTICES.expand(sizeof(GLfloat) * 5 * 4);
KRENGINE_VBO_2D_SQUARE_VERTICES.lock();
memcpy(KRENGINE_VBO_2D_SQUARE_VERTICES.getStart(), _KRENGINE_VBO_2D_SQUARE_VERTEX_DATA, sizeof(GLfloat) * 5 * 4);
KRENGINE_VBO_2D_SQUARE_VERTICES.unlock();
KRENGINE_VBO_DATA_2D_SQUARE_VERTICES.init(this, KRENGINE_VBO_2D_SQUARE_VERTICES, KRENGINE_VBO_2D_SQUARE_INDEXES, KRENGINE_VBO_2D_SQUARE_ATTRIBS, false, KRVBOData::CONSTANT);
}
KRMeshManager::~KRMeshManager() {
for(unordered_multimap<std::string, KRMesh *>::iterator itr = m_models.begin(); itr != m_models.end(); ++itr){
delete (*itr).second;
}
m_models.empty();
}
KRResource* KRMeshManager::loadResource(const std::string& name, const std::string& extension, KRDataBlock* data)
{
if (extension.compare("krmesh") == 0) {
return loadModel(name.c_str(), data);
}
return nullptr;
}
KRResource* KRMeshManager::getResource(const std::string& name, const std::string& extension)
{
if (extension.compare("krmesh") == 0) {
std::string lodBaseName;
int lodCoverage;
KRMesh::parseName(name, lodBaseName, lodCoverage);
std::vector<KRMesh*> models = getModel(lodBaseName.c_str());
for (KRMesh* mesh : models) {
if (mesh->getLODCoverage() == lodCoverage) {
return mesh;
}
}
}
return nullptr;
}
KRMesh *KRMeshManager::loadModel(const char *szName, KRDataBlock *pData) {
KRMesh *pModel = new KRMesh(*m_pContext, szName, pData);
addModel(pModel);
return pModel;
}
void KRMeshManager::addModel(KRMesh *model) {
std::string lowerName = model->getLODBaseName();
std::transform(lowerName.begin(), lowerName.end(),
lowerName.begin(), ::tolower);
m_models.insert(std::pair<std::string, KRMesh *>(lowerName, model));
}
std::vector<KRMesh *> KRMeshManager::getModel(const char *szName) {
std::string lowerName = szName;
std::transform(lowerName.begin(), lowerName.end(),
lowerName.begin(), ::tolower);
std::vector<KRMesh *> matching_models;
std::pair<unordered_multimap<std::string, KRMesh *>::iterator, unordered_multimap<std::string, KRMesh *>::iterator> range = m_models.equal_range(lowerName);
for(unordered_multimap<std::string, KRMesh *>::iterator itr_match = range.first; itr_match != range.second; itr_match++) {
matching_models.push_back(itr_match->second);
}
std::sort(matching_models.begin(), matching_models.end(), KRMesh::lod_sort_predicate);
if(matching_models.size() == 0) {
KRContext::Log(KRContext::LOG_LEVEL_INFORMATION, "Model not found: %s", lowerName.c_str());
}
return matching_models;
}
unordered_multimap<std::string, KRMesh *> &KRMeshManager::getModels() {
return m_models;
}
void KRMeshManager::unbindVBO() {
if(m_currentVBO != NULL) {
GLDEBUG(glBindBuffer(GL_ARRAY_BUFFER, 0));
GLDEBUG(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
m_currentVBO = NULL;
}
}
void KRMeshManager::bindVBO(KRVBOData *vbo_data, float lodCoverage)
{
vbo_data->resetPoolExpiry(lodCoverage);
bool vbo_changed = false;
if(m_currentVBO == NULL) {
vbo_changed = true;
} else if(m_currentVBO->m_data != vbo_data->m_data) {
vbo_changed = true;
}
bool used_vbo_data = false;
if(vbo_changed) {
if(m_vbosActive.find(vbo_data->m_data) != m_vbosActive.end()) {
m_currentVBO = m_vbosActive[vbo_data->m_data];
} else {
used_vbo_data = true;
m_currentVBO = vbo_data;
m_vbosActive[vbo_data->m_data] = m_currentVBO;
}
m_currentVBO->bind();
}
if(!used_vbo_data && vbo_data->getType() == KRVBOData::TEMPORARY) {
delete vbo_data;
}
}
void KRMeshManager::startFrame(float deltaTime)
{
m_memoryTransferredThisFrame = 0;
if(m_draw_call_log_used) {
// Only log draw calls on the next frame if the draw call log was used on last frame
m_draw_call_log_used = false;
m_draw_call_logging_enabled = true;
}
m_draw_calls.clear();
if(m_first_frame) {
m_first_frame = false;
firstFrame();
}
// TODO - Implement proper double-buffering to reduce copy operations
m_streamerFenceMutex.lock();
if(m_streamerComplete) {
assert(m_activeVBOs_streamer_copy.size() == 0); // The streamer should have emptied this if it really did complete
const long KRENGINE_VBO_EXPIRY_FRAMES = 1;
std::set<KRVBOData *> expiredVBOs;
for(auto itr=m_vbosActive.begin(); itr != m_vbosActive.end(); itr++) {
KRVBOData *activeVBO = (*itr).second;
activeVBO->_swapHandles();
if(activeVBO->getLastFrameUsed() + KRENGINE_VBO_EXPIRY_FRAMES < getContext().getCurrentFrame()) {
// Expire VBO's that haven't been used in a long time
switch(activeVBO->getType()) {
case KRVBOData::STREAMING:
activeVBO->unload();
break;
case KRVBOData::TEMPORARY:
delete activeVBO;
break;
case KRVBOData::CONSTANT:
// CONSTANT VBO's are not unloaded
break;
}
expiredVBOs.insert(activeVBO);
} else {
if(activeVBO->getType() == KRVBOData::STREAMING) {
float priority = activeVBO->getStreamPriority();
m_activeVBOs_streamer_copy.push_back(std::pair<float, KRVBOData *>(priority, activeVBO));
}
}
}
for(std::set<KRVBOData *>::iterator itr=expiredVBOs.begin(); itr != expiredVBOs.end(); itr++) {
m_vbosActive.erase((*itr)->m_data);
}
if(m_activeVBOs_streamer_copy.size() > 0) {
m_streamerComplete = false;
}
}
m_streamerFenceMutex.unlock();
}
void KRMeshManager::endFrame(float deltaTime)
{
}
void KRMeshManager::firstFrame()
{
KRENGINE_VBO_DATA_3D_CUBE_VERTICES.load();
KRENGINE_VBO_DATA_2D_SQUARE_VERTICES.load();
getModel("__sphere")[0]->load();
getModel("__cube")[0]->load();
getModel("__quad")[0]->load();
}
void KRMeshManager::doStreaming(long &memoryRemaining, long &memoryRemainingThisFrame)
{
// TODO - Implement proper double-buffering to reduce copy operations
m_streamerFenceMutex.lock();
m_activeVBOs_streamer = std::move(m_activeVBOs_streamer_copy);
m_streamerFenceMutex.unlock();
if(m_activeVBOs_streamer.size() > 0) {
balanceVBOMemory(memoryRemaining, memoryRemainingThisFrame);
m_streamerFenceMutex.lock();
m_streamerComplete = true;
m_streamerFenceMutex.unlock();
} else {
memoryRemaining -= getMemUsed();
}
}
void KRMeshManager::balanceVBOMemory(long &memoryRemaining, long &memoryRemainingThisFrame)
{
std::sort(m_activeVBOs_streamer.begin(), m_activeVBOs_streamer.end(), std::greater<std::pair<float, KRVBOData *>>());
for(auto vbo_itr = m_activeVBOs_streamer.begin(); vbo_itr != m_activeVBOs_streamer.end(); vbo_itr++) {
KRVBOData *vbo_data = (*vbo_itr).second;
long vbo_size = vbo_data->getSize();
if(!vbo_data->isVBOLoaded()) {
if(memoryRemainingThisFrame > vbo_size) {
vbo_data->load();
memoryRemainingThisFrame -= vbo_size;
}
}
memoryRemaining -= vbo_size;
}
glFinish();
}
void KRMeshManager::bindVBO(KRDataBlock &data, KRDataBlock &index_data, int vertex_attrib_flags, bool static_vbo, float lodCoverage)
{
KRVBOData *vbo_data = new KRVBOData(this, data, index_data, vertex_attrib_flags, static_vbo, KRVBOData::TEMPORARY);
vbo_data->load();
bindVBO(vbo_data, lodCoverage);
}
void KRMeshManager::configureAttribs(__int32_t attributes)
{
GLsizei data_size = (GLsizei)KRMesh::VertexSizeForAttributes(attributes);
if(KRMesh::has_vertex_attribute(attributes, KRMesh::KRENGINE_ATTRIB_VERTEX_SHORT)) {
GLDEBUG(glEnableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_VERTEX));
GLDEBUG(glVertexAttribPointer(KRMesh::KRENGINE_ATTRIB_VERTEX, 3, GL_SHORT, GL_TRUE, data_size, BUFFER_OFFSET(KRMesh::AttributeOffset(KRMesh::KRENGINE_ATTRIB_VERTEX_SHORT, attributes))));
} else if(KRMesh::has_vertex_attribute(attributes, KRMesh::KRENGINE_ATTRIB_VERTEX)) {
GLDEBUG(glEnableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_VERTEX));
GLDEBUG(glVertexAttribPointer(KRMesh::KRENGINE_ATTRIB_VERTEX, 3, GL_FLOAT, GL_FALSE, data_size, BUFFER_OFFSET(KRMesh::AttributeOffset(KRMesh::KRENGINE_ATTRIB_VERTEX, attributes))));
} else {
GLDEBUG(glDisableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_VERTEX));
}
if(KRMesh::has_vertex_attribute(attributes, KRMesh::KRENGINE_ATTRIB_NORMAL_SHORT)) {
GLDEBUG(glEnableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_NORMAL));
GLDEBUG(glVertexAttribPointer(KRMesh::KRENGINE_ATTRIB_NORMAL, 3, GL_SHORT, GL_TRUE, data_size, BUFFER_OFFSET(KRMesh::AttributeOffset(KRMesh::KRENGINE_ATTRIB_NORMAL_SHORT, attributes))));
} else if(KRMesh::has_vertex_attribute(attributes, KRMesh::KRENGINE_ATTRIB_NORMAL)) {
GLDEBUG(glEnableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_NORMAL));
GLDEBUG(glVertexAttribPointer(KRMesh::KRENGINE_ATTRIB_NORMAL, 3, GL_FLOAT, GL_FALSE, data_size, BUFFER_OFFSET(KRMesh::AttributeOffset(KRMesh::KRENGINE_ATTRIB_NORMAL, attributes))));
} else {
GLDEBUG(glDisableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_NORMAL));
}
if(KRMesh::has_vertex_attribute(attributes, KRMesh::KRENGINE_ATTRIB_TANGENT_SHORT)) {
GLDEBUG(glEnableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_TANGENT));
GLDEBUG(glVertexAttribPointer(KRMesh::KRENGINE_ATTRIB_TANGENT, 3, GL_SHORT, GL_TRUE, data_size, BUFFER_OFFSET(KRMesh::AttributeOffset(KRMesh::KRENGINE_ATTRIB_TANGENT_SHORT, attributes))));
} else if(KRMesh::has_vertex_attribute(attributes, KRMesh::KRENGINE_ATTRIB_TANGENT)) {
GLDEBUG(glEnableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_TANGENT));
GLDEBUG(glVertexAttribPointer(KRMesh::KRENGINE_ATTRIB_TANGENT, 3, GL_FLOAT, GL_FALSE, data_size, BUFFER_OFFSET(KRMesh::AttributeOffset(KRMesh::KRENGINE_ATTRIB_TANGENT, attributes))));
} else {
GLDEBUG(glDisableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_TANGENT));
}
if(KRMesh::has_vertex_attribute(attributes, KRMesh::KRENGINE_ATTRIB_TEXUVA_SHORT)) {
GLDEBUG(glEnableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_TEXUVA));
GLDEBUG(glVertexAttribPointer(KRMesh::KRENGINE_ATTRIB_TEXUVA, 2, GL_SHORT, GL_TRUE, data_size, BUFFER_OFFSET(KRMesh::AttributeOffset(KRMesh::KRENGINE_ATTRIB_TEXUVA_SHORT, attributes))));
} else if(KRMesh::has_vertex_attribute(attributes, KRMesh::KRENGINE_ATTRIB_TEXUVA)) {
GLDEBUG(glEnableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_TEXUVA));
GLDEBUG(glVertexAttribPointer(KRMesh::KRENGINE_ATTRIB_TEXUVA, 2, GL_FLOAT, GL_FALSE, data_size, BUFFER_OFFSET(KRMesh::AttributeOffset(KRMesh::KRENGINE_ATTRIB_TEXUVA, attributes))));
} else {
GLDEBUG(glDisableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_TEXUVA));
}
if(KRMesh::has_vertex_attribute(attributes, KRMesh::KRENGINE_ATTRIB_TEXUVB_SHORT)) {
GLDEBUG(glEnableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_TEXUVB));
GLDEBUG(glVertexAttribPointer(KRMesh::KRENGINE_ATTRIB_TEXUVB, 2, GL_SHORT, GL_TRUE, data_size, BUFFER_OFFSET(KRMesh::AttributeOffset(KRMesh::KRENGINE_ATTRIB_TEXUVB_SHORT, attributes))));
} else if(KRMesh::has_vertex_attribute(attributes, KRMesh::KRENGINE_ATTRIB_TEXUVB)) {
GLDEBUG(glEnableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_TEXUVB));
GLDEBUG(glVertexAttribPointer(KRMesh::KRENGINE_ATTRIB_TEXUVB, 2, GL_FLOAT, GL_FALSE, data_size, BUFFER_OFFSET(KRMesh::AttributeOffset(KRMesh::KRENGINE_ATTRIB_TEXUVB, attributes))));
} else {
GLDEBUG(glDisableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_TEXUVB));
}
if(KRMesh::has_vertex_attribute(attributes, KRMesh::KRENGINE_ATTRIB_BONEINDEXES)) {
GLDEBUG(glEnableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_BONEINDEXES));
GLDEBUG(glVertexAttribPointer(KRMesh::KRENGINE_ATTRIB_BONEINDEXES, 4, GL_UNSIGNED_BYTE, GL_FALSE, data_size, BUFFER_OFFSET(KRMesh::AttributeOffset(KRMesh::KRENGINE_ATTRIB_BONEINDEXES, attributes))));
} else {
GLDEBUG(glDisableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_BONEINDEXES));
}
if(KRMesh::has_vertex_attribute(attributes, KRMesh::KRENGINE_ATTRIB_BONEWEIGHTS)) {
GLDEBUG(glEnableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_BONEWEIGHTS));
GLDEBUG(glVertexAttribPointer(KRMesh::KRENGINE_ATTRIB_BONEWEIGHTS, 4, GL_FLOAT, GL_FALSE, data_size, BUFFER_OFFSET(KRMesh::AttributeOffset(KRMesh::KRENGINE_ATTRIB_BONEWEIGHTS, attributes))));
} else {
GLDEBUG(glDisableVertexAttribArray(KRMesh::KRENGINE_ATTRIB_BONEWEIGHTS));
}
}
long KRMeshManager::getMemUsed()
{
return m_vboMemUsed;
}
long KRMeshManager::getMemActive()
{
long mem_active = 0;
for(unordered_map<KRDataBlock *, KRVBOData *>::iterator itr = m_vbosActive.begin(); itr != m_vbosActive.end(); itr++) {
mem_active += (*itr).second->getSize();
}
return mem_active;
}
KRDataBlock &KRMeshManager::getVolumetricLightingVertexes()
{
if(m_volumetricLightingVertexData.getSize() == 0) {
m_volumetricLightingVertexData.expand(sizeof(VolumetricLightingVertexData) * KRENGINE_MAX_VOLUMETRIC_PLANES * 6);
m_volumetricLightingVertexData.lock();
VolumetricLightingVertexData * vertex_data = (VolumetricLightingVertexData *)m_volumetricLightingVertexData.getStart();
int iVertex=0;
for(int iPlane=0; iPlane < KRENGINE_MAX_VOLUMETRIC_PLANES; iPlane++) {
vertex_data[iVertex].vertex.x = -1.0f;
vertex_data[iVertex].vertex.y = -1.0f;
vertex_data[iVertex].vertex.z = (GLfloat)iPlane;
iVertex++;
vertex_data[iVertex].vertex.x = 1.0f;
vertex_data[iVertex].vertex.y = -1.0f;
vertex_data[iVertex].vertex.z = (GLfloat)iPlane;
iVertex++;
vertex_data[iVertex].vertex.x = -1.0f;
vertex_data[iVertex].vertex.y = 1.0f;
vertex_data[iVertex].vertex.z = (GLfloat)iPlane;
iVertex++;
vertex_data[iVertex].vertex.x = -1.0f;
vertex_data[iVertex].vertex.y = 1.0f;
vertex_data[iVertex].vertex.z = (GLfloat)iPlane;
iVertex++;
vertex_data[iVertex].vertex.x = 1.0f;
vertex_data[iVertex].vertex.y = -1.0f;
vertex_data[iVertex].vertex.z = (GLfloat)iPlane;
iVertex++;
vertex_data[iVertex].vertex.x = 1.0f;
vertex_data[iVertex].vertex.y = 1.0f;
vertex_data[iVertex].vertex.z = (GLfloat)iPlane;
iVertex++;
}
m_volumetricLightingVertexData.unlock();
}
return m_volumetricLightingVertexData;
}
KRDataBlock &KRMeshManager::getRandomParticles()
{
if(m_randomParticleVertexData.getSize() == 0) {
m_randomParticleVertexData.expand(sizeof(RandomParticleVertexData) * KRENGINE_MAX_RANDOM_PARTICLES * 3);
m_randomParticleVertexData.lock();
RandomParticleVertexData *vertex_data = (RandomParticleVertexData *)m_randomParticleVertexData.getStart();
// Generate vertices for randomly placed equilateral triangles with a side length of 1 and an origin point centered so that an inscribed circle can be efficiently rendered without wasting fill
float equilateral_triangle_height = sqrt(3.0f) * 0.5f;
float inscribed_circle_radius = 1.0f / (2.0f * sqrt(3.0f));
int iVertex=0;
for(int iParticle=0; iParticle < KRENGINE_MAX_RANDOM_PARTICLES; iParticle++) {
vertex_data[iVertex].vertex.x = (float)(rand() % 2000) / 1000.0f - 1000.0f;
vertex_data[iVertex].vertex.y = (float)(rand() % 2000) / 1000.0f - 1000.0f;
vertex_data[iVertex].vertex.z = (float)(rand() % 2000) / 1000.0f - 1000.0f;
vertex_data[iVertex].uva.u = -0.5f;
vertex_data[iVertex].uva.v = -inscribed_circle_radius;
iVertex++;
vertex_data[iVertex].vertex.x = vertex_data[iVertex-1].vertex.x;
vertex_data[iVertex].vertex.y = vertex_data[iVertex-1].vertex.y;
vertex_data[iVertex].vertex.z = vertex_data[iVertex-1].vertex.z;
vertex_data[iVertex].uva.u = 0.5f;
vertex_data[iVertex].uva.v = -inscribed_circle_radius;
iVertex++;
vertex_data[iVertex].vertex.x = vertex_data[iVertex-1].vertex.x;
vertex_data[iVertex].vertex.y = vertex_data[iVertex-1].vertex.y;
vertex_data[iVertex].vertex.z = vertex_data[iVertex-1].vertex.z;
vertex_data[iVertex].uva.u = 0.0f;
vertex_data[iVertex].uva.v = -inscribed_circle_radius + equilateral_triangle_height;
iVertex++;
}
m_randomParticleVertexData.unlock();
}
return m_randomParticleVertexData;
}
long KRMeshManager::getMemoryTransferedThisFrame()
{
return m_memoryTransferredThisFrame;
}
size_t KRMeshManager::getActiveVBOCount()
{
return m_vbosActive.size();
}
void KRMeshManager::log_draw_call(KRNode::RenderPass pass, const std::string &object_name, const std::string &material_name, int vertex_count)
{
if(m_draw_call_logging_enabled) {
draw_call_info info;
info.pass = pass;
strncpy(info.object_name, object_name.c_str(), 256);
strncpy(info.material_name, material_name.c_str(), 256);
info.vertex_count = vertex_count;
m_draw_calls.push_back(info);
}
}
std::vector<KRMeshManager::draw_call_info> KRMeshManager::getDrawCalls()
{
m_draw_call_log_used = true;
return m_draw_calls;
}
KRMeshManager::KRVBOData::KRVBOData()
{
m_is_vbo_loaded = false;
m_is_vbo_ready = false;
m_manager = NULL;
m_type = STREAMING;
m_data = NULL;
m_index_data = NULL;
m_vertex_attrib_flags = 0;
m_vbo_handle = -1;
m_vbo_handle_indexes = -1;
m_vao_handle = -1;
m_size = 0;
m_last_frame_used = 0;
m_last_frame_max_lod_coverage = 0.0f;
}
KRMeshManager::KRVBOData::KRVBOData(KRMeshManager *manager, KRDataBlock &data, KRDataBlock &index_data, int vertex_attrib_flags, bool static_vbo, vbo_type t)
{
m_is_vbo_loaded = false;
m_is_vbo_ready = false;
init(manager, data,index_data,vertex_attrib_flags, static_vbo, t);
}
void KRMeshManager::KRVBOData::init(KRMeshManager *manager, KRDataBlock &data, KRDataBlock &index_data, int vertex_attrib_flags, bool static_vbo, vbo_type t)
{
m_manager = manager;
m_type = t;
m_static_vbo = static_vbo;
m_data = &data;
m_index_data = &index_data;
m_vertex_attrib_flags = vertex_attrib_flags;
m_vbo_handle = -1;
m_vbo_handle_indexes = -1;
m_vao_handle = -1;
m_size = m_data->getSize();
if(m_index_data != NULL) {
m_size += m_index_data->getSize();
}
}
KRMeshManager::KRVBOData::~KRVBOData()
{
unload();
}
void KRMeshManager::KRVBOData::load()
{
if(isVBOLoaded()) {
return;
}
assert(m_vao_handle == -1);
assert(m_vbo_handle == -1);
assert(m_vbo_handle_indexes == -1);
GLDEBUG(glGenBuffers(1, &m_vbo_handle));
if(m_index_data->getSize() > 0) {
GLDEBUG(glGenBuffers(1, &m_vbo_handle_indexes));
}
#if GL_OES_vertex_array_object
if(m_type == CONSTANT) {
GLDEBUG(glGenVertexArraysOES(1, &m_vao_handle));
GLDEBUG(glBindVertexArrayOES(m_vao_handle));
}
#endif
GLDEBUG(glBindBuffer(GL_ARRAY_BUFFER, m_vbo_handle));
bool use_mapbuffer = true;
#if GL_OES_mapbuffer
if(use_mapbuffer) {
GLDEBUG(glBufferData(GL_ARRAY_BUFFER, m_data->getSize(), NULL, m_static_vbo ? GL_STATIC_DRAW : GL_DYNAMIC_DRAW));
GLDEBUG(void *map_ptr = glMapBufferOES(GL_ARRAY_BUFFER, GL_WRITE_ONLY_OES));
m_data->copy(map_ptr);
GLDEBUG(glUnmapBufferOES(GL_ARRAY_BUFFER));
}
else
#endif
{
m_data->lock();
GLDEBUG(glBufferData(GL_ARRAY_BUFFER, m_data->getSize(), m_data->getStart(), m_static_vbo ? GL_STATIC_DRAW : GL_DYNAMIC_DRAW));
m_data->unlock();
}
configureAttribs(m_vertex_attrib_flags);
if(m_index_data->getSize() == 0) {
GLDEBUG(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
} else {
GLDEBUG(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_vbo_handle_indexes));
#if GL_OES_mapbuffer
if(use_mapbuffer) {
GLDEBUG(glBufferData(GL_ELEMENT_ARRAY_BUFFER, m_index_data->getSize(), NULL, m_static_vbo ? GL_STATIC_DRAW : GL_DYNAMIC_DRAW));
GLDEBUG(void *map_ptr = glMapBufferOES(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY_OES));
m_index_data->copy(map_ptr);
GLDEBUG(glUnmapBufferOES(GL_ELEMENT_ARRAY_BUFFER));
}
else
#endif
{
m_index_data->lock();
GLDEBUG(glBufferData(GL_ELEMENT_ARRAY_BUFFER, m_index_data->getSize(), m_index_data->getStart(), m_static_vbo ? GL_STATIC_DRAW : GL_DYNAMIC_DRAW));
m_index_data->unlock();
}
}
m_is_vbo_loaded = true;
m_manager->m_vboMemUsed += getSize();
m_manager->m_memoryTransferredThisFrame += getSize();
if(m_type == CONSTANT) {
_swapHandles();
}
}
void KRMeshManager::KRVBOData::unload()
{
if(isVBOLoaded()) {
m_manager->m_vboMemUsed -= getSize();
}
#if GL_OES_vertex_array_object
if(m_vao_handle != -1) {
GLDEBUG(glDeleteVertexArraysOES(1, &m_vao_handle));
m_vao_handle = -1;
}
#endif
if(m_vbo_handle != -1) {
GLDEBUG(glDeleteBuffers(1, &m_vbo_handle));
m_vbo_handle = -1;
}
if(m_vbo_handle_indexes != -1) {
GLDEBUG(glDeleteBuffers(1, &m_vbo_handle_indexes));
m_vbo_handle_indexes = -1;
}
m_is_vbo_loaded = false;
m_is_vbo_ready = false;
}
void KRMeshManager::KRVBOData::bind()
{
#if GL_OES_vertex_array_object
GLDEBUG(glBindVertexArrayOES(m_vao_handle));
#else
GLDEBUG(glBindBuffer(GL_ARRAY_BUFFER, m_vbo_handle));
KRMeshManager::configureAttribs(m_vertex_attrib_flags);
if(m_vbo_handle_indexes == -1) {
GLDEBUG(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
} else {
GLDEBUG(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_vbo_handle_indexes));
}
#endif
}
void KRMeshManager::KRVBOData::resetPoolExpiry(float lodCoverage)
{
long current_frame = m_manager->getContext().getCurrentFrame();
if(current_frame != m_last_frame_used) {
m_last_frame_used = current_frame;
m_last_frame_max_lod_coverage = 0.0f;
m_manager->primeVBO(this);
}
m_last_frame_max_lod_coverage = KRMAX(lodCoverage, m_last_frame_max_lod_coverage);
}
float KRMeshManager::KRVBOData::getStreamPriority()
{
long current_frame = m_manager->getContext().getCurrentFrame();
if(current_frame > m_last_frame_used + 5) {
return 1.0f - KRCLAMP((float)(current_frame - m_last_frame_used) / 60.0f, 0.0f, 1.0f);
} else {
return 10000.0f + m_last_frame_max_lod_coverage * 10.0f;
}
}
void KRMeshManager::KRVBOData::_swapHandles()
{
if(m_is_vbo_loaded) {
assert(m_vbo_handle != -1);
}
#if GL_OES_vertex_array_object
if(m_is_vbo_loaded && m_vao_handle == -1) {
GLDEBUG(glGenVertexArraysOES(1, &m_vao_handle));
GLDEBUG(glBindVertexArrayOES(m_vao_handle));
GLDEBUG(glBindBuffer(GL_ARRAY_BUFFER, m_vbo_handle));
KRMeshManager::configureAttribs(m_vertex_attrib_flags);
if(m_vbo_handle_indexes == -1) {
GLDEBUG(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
} else {
GLDEBUG(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_vbo_handle_indexes));
}
}
#endif
m_is_vbo_ready = m_is_vbo_loaded;
}
void KRMeshManager::primeVBO(KRVBOData *vbo_data)
{
if(m_vbosActive.find(vbo_data->m_data) == m_vbosActive.end()) {
m_vbosActive[vbo_data->m_data] = vbo_data;
}
}
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