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Refactored opengl terrain rendering for future use of shaders

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This commit is contained in:
Michaël Lemaire 2013-12-23 14:09:52 +01:00 committed by Michael Lemaire
parent 8098482d50
commit ac5c0fd584
16 changed files with 465 additions and 458 deletions
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170
src/render/opengl/BaseExplorerChunk.cpp
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@ -1,170 +0,0 @@
#include "BaseExplorerChunk.h"
#include <QImage>
#include <QGLWidget>
#include "ColorProfile.h"
#ifndef GL_CLAMP_TO_EDGE
#define GL_CLAMP_TO_EDGE 0x812F
#endif
BaseExplorerChunk::BaseExplorerChunk(SoftwareRenderer* renderer)
{
_renderer = renderer;
_color_profile = new ColorProfile;
priority = 0.0;
_reset_needed = false;
_texture = new QImage(1, 1, QImage::Format_ARGB32);
_texture_id = 0;
_texture_changed = false;
_texture_current_size = 0;
_texture_max_size = 0;
}
BaseExplorerChunk::~BaseExplorerChunk()
{
_lock_data.lock();
delete _color_profile;
delete _texture;
_lock_data.unlock();
}
bool BaseExplorerChunk::maintain()
{
bool subchanged;
_lock_data.lock();
if (_reset_needed)
{
_reset_needed = false;
_texture_current_size = 0;
onResetEvent();
}
_lock_data.unlock();
subchanged = onMaintainEvent();
// Improve texture resolution
if (_texture_current_size < _texture_max_size)
{
int new_texture_size = _texture_current_size ? _texture_current_size * 2 : 1;
QImage* new_image = new QImage(_texture->scaled(new_texture_size + 1, new_texture_size + 1, Qt::IgnoreAspectRatio, Qt::FastTransformation));
for (int j = 0; j <= new_texture_size; j++)
{
for (int i = 0; i <= new_texture_size; i++)
{
if (_texture_current_size <= 1 || i % 2 != 0 || j % 2 != 0)
{
Color color = getTextureColor((double)i / (double)new_texture_size, 1.0 - (double)j / (double)new_texture_size);
color = _color_profile->apply(color);
color.normalize();
new_image->setPixel(i, j, color.to32BitBGRA());
}
}
}
_lock_data.lock();
delete _texture;
_texture = new_image;
_texture_current_size = new_texture_size;
_texture_changed = true;
_lock_data.unlock();
/*if (_texture_current_size < 4 && _texture_current_size < _texture_max_size)
{
maintain();
}*/
return true;
}
else
{
return subchanged;
}
}
void BaseExplorerChunk::updatePriority(CameraDefinition* camera)
{
if (_reset_needed || (_texture_max_size > 1 && _texture_current_size <= 1))
{
priority = 1000.0;
}
else if (_texture_current_size == _texture_max_size)
{
priority = -1000.0;
}
else
{
priority = getDisplayedSizeHint(camera) - _texture_current_size;
}
onCameraEvent(camera);
}
void BaseExplorerChunk::render(QGLWidget* widget)
{
// Put texture in place
_lock_data.lock();
if (_texture_changed)
{
_texture_changed = false;
if (_texture_id)
{
widget->deleteTexture(_texture_id);
}
// TODO Only do the scale if not power-of-two textures are unsupported by GPU
_texture_id = widget->bindTexture(_texture->scaled(_texture_current_size, _texture_current_size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
//_texture_id = widget->bindTexture(*_texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
else
{
glBindTexture(GL_TEXTURE_2D, _texture_id);
}
_lock_data.unlock();
// Delegate poly rendering to subclass
if (!_reset_needed)
{
onRenderEvent(widget);
}
}
void BaseExplorerChunk::askReset()
{
_reset_needed = true;
}
void BaseExplorerChunk::setMaxTextureSize(int size)
{
_texture_max_size = size;
}
void BaseExplorerChunk::onCameraEvent(CameraDefinition*)
{
}
void BaseExplorerChunk::onResetEvent()
{
}
bool BaseExplorerChunk::onMaintainEvent()
{
return false;
}
void BaseExplorerChunk::onRenderEvent(QGLWidget*)
{
}
double BaseExplorerChunk::getDisplayedSizeHint(CameraDefinition*)
{
return 0.0;
}
Color BaseExplorerChunk::getTextureColor(double, double)
{
return COLOR_TRANSPARENT;
}

58
src/render/opengl/BaseExplorerChunk.h
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@ -1,58 +0,0 @@
#ifndef BASEEXPLORERCHUNK_H
#define BASEEXPLORERCHUNK_H
#include "opengl_global.h"
#include <QMutex>
#include "Color.h"
class QImage;
class QGLWidget;
namespace paysages {
namespace opengl {
class BaseExplorerChunk
{
public:
virtual ~BaseExplorerChunk();
bool maintain();
void updatePriority(CameraDefinition* camera);
void render(QGLWidget* widget);
double priority;
protected:
BaseExplorerChunk(SoftwareRenderer* renderer);
inline SoftwareRenderer* renderer() {return _renderer;}
void askReset();
void setMaxTextureSize(int size);
virtual void onCameraEvent(CameraDefinition* camera);
virtual void onResetEvent();
virtual bool onMaintainEvent();
virtual void onRenderEvent(QGLWidget* widget);
virtual double getDisplayedSizeHint(CameraDefinition* camera);
virtual Color getTextureColor(double x, double y);
QMutex _lock_data;
private:
SoftwareRenderer* _renderer;
ColorProfile* _color_profile;
bool _reset_needed;
QImage* _texture;
unsigned int _texture_id;
bool _texture_changed;
int _texture_current_size;
int _texture_max_size;
};
}
}
#endif // BASEEXPLORERCHUNK_H

161
src/render/opengl/ExplorerChunkTerrain.cpp
View file

@ -1,13 +1,28 @@
#include "ExplorerChunkTerrain.h"
#include OPENGL_FUNCTIONS_INCLUDE
#include <cmath>
#include <GL/gl.h>
#include <QImage>
#include <QOpenGLTexture>
#include "ColorProfile.h"
#include "CameraDefinition.h"
#include "SoftwareRenderer.h"
#include "OpenGLRenderer.h"
#include "TerrainRenderer.h"
ExplorerChunkTerrain::ExplorerChunkTerrain(SoftwareRenderer* renderer, double x, double z, double size, int nbchunks, double water_height) : BaseExplorerChunk(renderer)
ExplorerChunkTerrain::ExplorerChunkTerrain(OpenGLRenderer* renderer, double x, double z, double size, int nbchunks, double water_height):
_renderer(renderer)
{
_color_profile = new ColorProfile;
priority = 0.0;
_reset_needed = false;
_texture = new QImage(1, 1, QImage::Format_ARGB32);
texture = new QOpenGLTexture(*_texture);
_texture_changed = false;
_texture_current_size = 0;
_texture_max_size = 0;
_startx = x;
_startz = z;
_size = size;
@ -31,20 +46,70 @@ ExplorerChunkTerrain::ExplorerChunkTerrain(SoftwareRenderer* renderer, double x,
ExplorerChunkTerrain::~ExplorerChunkTerrain()
{
_lock_data.lock();
delete _color_profile;
delete _texture;
delete texture;
delete [] _tessellation;
_lock_data.unlock();
}
void ExplorerChunkTerrain::onResetEvent()
bool ExplorerChunkTerrain::maintain()
{
_tessellation_current_size = 0;
_overwater = false;
bool subchanged;
_lock_data.lock();
if (_reset_needed)
{
_reset_needed = false;
_texture_current_size = 0;
_tessellation_current_size = 0;
_overwater = false;
}
_lock_data.unlock();
subchanged = onMaintainEvent();
// Improve texture resolution
if (_texture_current_size < _texture_max_size)
{
int new_texture_size = _texture_current_size ? _texture_current_size * 2 : 1;
QImage* new_image = new QImage(_texture->scaled(new_texture_size + 1, new_texture_size + 1, Qt::IgnoreAspectRatio, Qt::FastTransformation));
for (int j = 0; j <= new_texture_size; j++)
{
for (int i = 0; i <= new_texture_size; i++)
{
if (_texture_current_size <= 1 || i % 2 != 0 || j % 2 != 0)
{
Color color = getTextureColor((double)i / (double)new_texture_size, (double)j / (double)new_texture_size);
color = _color_profile->apply(color);
color.normalize();
new_image->setPixel(i, j, color.to32BitBGRA());
}
}
}
_lock_data.lock();
delete _texture;
_texture = new_image;
_texture_current_size = new_texture_size;
_texture_changed = true;
_lock_data.unlock();
/*if (_texture_current_size < 4 && _texture_current_size < _texture_max_size)
{
maintain();
}*/
return true;
}
else
{
return subchanged;
}
}
bool ExplorerChunkTerrain::onMaintainEvent()
{
SoftwareRenderer* renderer = this->renderer();
// Improve heightmap resolution
if (_tessellation_current_size < _tessellation_max_size)
{
@ -57,7 +122,7 @@ bool ExplorerChunkTerrain::onMaintainEvent()
{
if (_tessellation_current_size == 0 || i % old_tessellation_inc != 0 || j % old_tessellation_inc != 0)
{
double height = renderer->getTerrainRenderer()->getHeight(_startx + _tessellation_step * (double) i, _startz + _tessellation_step * (double) j, 1);
double height = _renderer->getTerrainRenderer()->getHeight(_startx + _tessellation_step * (double) i, _startz + _tessellation_step * (double) j, 1);
if (height >= _water_height)
{
_overwater = true;
@ -84,8 +149,21 @@ bool ExplorerChunkTerrain::onMaintainEvent()
}
}
void ExplorerChunkTerrain::onCameraEvent(CameraDefinition* camera)
void ExplorerChunkTerrain::updatePriority(CameraDefinition* camera)
{
if (_reset_needed || (_texture_max_size > 1 && _texture_current_size <= 1))
{
priority = 1000.0;
}
else if (_texture_current_size == _texture_max_size)
{
priority = -1000.0;
}
else
{
priority = getDisplayedSizeHint(camera) - _texture_current_size;
}
Vector3 camera_location = camera->getLocation();
// Handle position
@ -116,33 +194,62 @@ void ExplorerChunkTerrain::onCameraEvent(CameraDefinition* camera)
_lock_data.unlock();
}
void ExplorerChunkTerrain::onRenderEvent(QGLWidget*)
void ExplorerChunkTerrain::render(OpenGLFunctions* functions)
{
// Put texture in place
_lock_data.lock();
int tessellation_size = _tessellation_current_size;
double tsize = 1.0 / (double) _tessellation_max_size;
if (_texture_changed)
{
_texture_changed = false;
texture->destroy();
// TODO Only do the scale if not power-of-two textures are unsupported by GPU
texture->setData(_texture->scaled(_texture_current_size, _texture_current_size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
//texture->setData(*_texture);
texture->setWrapMode(QOpenGLTexture::DirectionS, QOpenGLTexture::ClampToEdge);
texture->setWrapMode(QOpenGLTexture::DirectionT, QOpenGLTexture::ClampToEdge);
}
texture->bind();
_lock_data.unlock();
if (tessellation_size <= 1 or not _overwater)
// Delegate poly rendering to subclass
if (!_reset_needed)
{
return;
}
_lock_data.lock();
int tessellation_size = _tessellation_current_size;
double tsize = 1.0 / (double) _tessellation_max_size;
_lock_data.unlock();
int tessellation_inc = _tessellation_max_size / (double) tessellation_size;
for (int j = 0; j < _tessellation_max_size; j += tessellation_inc)
{
glBegin(GL_QUAD_STRIP);
for (int i = 0; i <= _tessellation_max_size; i += tessellation_inc)
if (tessellation_size <= 1 or not _overwater)
{
glTexCoord2d(tsize * (double) i, tsize * (double) j);
glVertex3d(_startx + _tessellation_step * (double) i, _tessellation[j * (_tessellation_max_size + 1) + i], _startz + _tessellation_step * (double) j);
glTexCoord2d(tsize * (double) i, tsize * (double) (j + tessellation_inc));
glVertex3d(_startx + _tessellation_step * (double) i, _tessellation[(j + tessellation_inc) * (_tessellation_max_size + 1) + i], _startz + _tessellation_step * (double) (j + tessellation_inc));
return;
}
int tessellation_inc = _tessellation_max_size / (double) tessellation_size;
for (int j = 0; j < _tessellation_max_size; j += tessellation_inc)
{
functions->glBegin(GL_QUAD_STRIP);
for (int i = 0; i <= _tessellation_max_size; i += tessellation_inc)
{
functions->glTexCoord2d(tsize * (double) i, tsize * (double) j);
functions->glVertex3d(_startx + _tessellation_step * (double) i, _tessellation[j * (_tessellation_max_size + 1) + i], _startz + _tessellation_step * (double) j);
functions->glTexCoord2d(tsize * (double) i, tsize * (double) (j + tessellation_inc));
functions->glVertex3d(_startx + _tessellation_step * (double) i, _tessellation[(j + tessellation_inc) * (_tessellation_max_size + 1) + i], _startz + _tessellation_step * (double) (j + tessellation_inc));
}
functions->glEnd();
}
glEnd();
}
}
void ExplorerChunkTerrain::askReset()
{
_reset_needed = true;
}
void ExplorerChunkTerrain::setMaxTextureSize(int size)
{
_texture_max_size = size;
}
double ExplorerChunkTerrain::getDisplayedSizeHint(CameraDefinition* camera)
{
double distance;
@ -170,7 +277,7 @@ double ExplorerChunkTerrain::getDisplayedSizeHint(CameraDefinition* camera)
Color ExplorerChunkTerrain::getTextureColor(double x, double y)
{
Vector3 location = {_startx + x * _size, 0.0, _startz + y * _size};
return renderer()->getTerrainRenderer()->getFinalColor(location, 0.01);
return _renderer->getTerrainRenderer()->getFinalColor(location, 0.01);
}
Vector3 ExplorerChunkTerrain::getCenter()

34
src/render/opengl/ExplorerChunkTerrain.h
View file

@ -1,26 +1,34 @@
#ifndef EXPLORERCHUNKTERRAIN_H
#define EXPLORERCHUNKTERRAIN_H
#include "BaseExplorerChunk.h"
#include "opengl_global.h"
#include "Vector3.h"
#include <QMutex>
class QImage;
class QOpenGLTexture;
namespace paysages {
namespace opengl {
class OPENGLSHARED_EXPORT ExplorerChunkTerrain:public BaseExplorerChunk
class OPENGLSHARED_EXPORT ExplorerChunkTerrain
{
public:
ExplorerChunkTerrain(SoftwareRenderer* renderer, double x, double z, double size, int nbchunks, double water_height);
ExplorerChunkTerrain(OpenGLRenderer* renderer, double x, double z, double size, int nbchunks, double water_height);
~ExplorerChunkTerrain();
void onCameraEvent(CameraDefinition* camera);
void onResetEvent();
bool maintain();
void updatePriority(CameraDefinition* camera);
void render(OpenGLFunctions* functions);
void askReset();
void setMaxTextureSize(int size);
bool onMaintainEvent();
void onRenderEvent(QGLWidget* widget);
double getDisplayedSizeHint(CameraDefinition* camera);
Color getTextureColor(double x, double y);
double priority;
private:
Vector3 getCenter();
@ -38,6 +46,18 @@ private:
int _tessellation_current_size;
double _tessellation_step;
QMutex _lock_data;
OpenGLRenderer* _renderer;
ColorProfile* _color_profile;
bool _reset_needed;
QImage* _texture;
QOpenGLTexture* texture;
bool _texture_changed;
int _texture_current_size;
int _texture_max_size;
};
}

7
src/render/opengl/OpenGLRenderer.cpp
View file

@ -5,6 +5,7 @@
#include "OpenGLSharedState.h"
#include "OpenGLSkybox.h"
#include "OpenGLWater.h"
#include "OpenGLTerrain.h"
OpenGLRenderer::OpenGLRenderer(Scenery* scenery):
SoftwareRenderer(scenery)
@ -16,12 +17,14 @@ OpenGLRenderer::OpenGLRenderer(Scenery* scenery):
skybox = new OpenGLSkybox(this);
water = new OpenGLWater(this);
terrain = new OpenGLTerrain(this);
}
OpenGLRenderer::~OpenGLRenderer()
{
delete skybox;
delete water;
delete terrain;
delete functions;
delete shared_state;
@ -60,6 +63,9 @@ void OpenGLRenderer::initialize()
water->initialize();
water->updateScenery();
terrain->initialize();
terrain->updateScenery();
}
}
@ -79,6 +85,7 @@ void OpenGLRenderer::paint()
functions->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
skybox->render();
terrain->render();
water->render();
}
}

1
src/render/opengl/OpenGLRenderer.h
View file

@ -37,6 +37,7 @@ private:
OpenGLSkybox* skybox;
OpenGLWater* water;
OpenGLTerrain* terrain;
};
}

144
src/render/opengl/OpenGLTerrain.cpp Normal file
View file

@ -0,0 +1,144 @@
#include "OpenGLTerrain.h"
#include OPENGL_FUNCTIONS_INCLUDE
#include "OpenGLRenderer.h"
#include "OpenGLShaderProgram.h"
#include "ParallelPool.h"
#include "Thread.h"
#include "ExplorerChunkTerrain.h"
#include "WaterRenderer.h"
#include "CameraDefinition.h"
#include "Scenery.h"
class ChunkMaintenanceThreads:public ParallelPool
{
public:
ChunkMaintenanceThreads(OpenGLTerrain* terrain):
terrain(terrain)
{
}
virtual void work() override
{
while (running)
{
terrain->performChunksMaintenance();
Thread::timeSleepMs(10);
}
}
private:
OpenGLTerrain* terrain;
};
OpenGLTerrain::OpenGLTerrain(OpenGLRenderer *renderer):
OpenGLPart(renderer)
{
work = new ChunkMaintenanceThreads(this);
}
OpenGLTerrain::~OpenGLTerrain()
{
delete work;
for (int i = 0; i < _chunks.count(); i++)
{
delete _chunks[i];
}
}
void OpenGLTerrain::initialize()
{
// Prepare shader programs
program = createShader("terrain");
program->addVertexSource("terrain");
program->addFragmentSource("bruneton");
program->addFragmentSource("tonemapping");
program->addFragmentSource("terrain");
// Add terrain chunks
int chunks = 20;
double size = 400.0;
double chunksize = size / (double) chunks;
double start = -size / 2.0;
double water_height = renderer->getWaterRenderer()->getHeightInfo().base_height;
for (int i = 0; i < chunks; i++)
{
for (int j = 0; j < chunks; j++)
{
ExplorerChunkTerrain* chunk = new ExplorerChunkTerrain(renderer, start + chunksize * (double) i, start + chunksize * (double) j, chunksize, chunks, water_height);
_chunks.append(chunk);
_updateQueue.append(chunk);
}
}
// Start chunks maintenance
work->start();
}
void OpenGLTerrain::update()
{
}
// TEMP
#include "GL/gl.h"
#include "GL/glu.h"
void OpenGLTerrain::render()
{
CameraDefinition* camera = renderer->getScenery()->getCamera();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
CameraPerspective perspective = camera->getPerspective();
gluPerspective(perspective.yfov * 180.0 / M_PI, perspective.xratio, perspective.znear, perspective.zfar);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
Vector3 camera_location = camera->getLocation();
Vector3 camera_target = camera->getTarget();
Vector3 camera_up = camera->getUpVector();
gluLookAt(camera_location.x, camera_location.y, camera_location.z, camera_target.x, camera_target.y, camera_target.z, camera_up.x, camera_up.y, camera_up.z);
// Render chunks
glEnable(GL_TEXTURE_2D);
for (int i = 0; i < _chunks.count(); i++)
{
glColor3f(1.0, 1.0, 1.0);
_chunks[i]->render(renderer->getOpenGlFunctions());
}
}
static bool _cmpChunks(const ExplorerChunkTerrain* c1, const ExplorerChunkTerrain* c2)
{
return c1->priority > c2->priority;
}
void OpenGLTerrain::performChunksMaintenance()
{
CameraDefinition* camera = renderer->getScenery()->getCamera();
ExplorerChunkTerrain* chunk;
_lock_chunks.lock();
if (_updateQueue.count() > 0)
{
chunk = _updateQueue.takeFirst();
_lock_chunks.unlock();
}
else
{
_lock_chunks.unlock();
return;
}
chunk->maintain();
_lock_chunks.lock();
_updateQueue.append(chunk);
for (int i = 0; i < _chunks.count(); i++)
{
_chunks[i]->updatePriority(camera);
}
qSort(_updateQueue.begin(), _updateQueue.end(), _cmpChunks);
_lock_chunks.unlock();
}

40
src/render/opengl/OpenGLTerrain.h Normal file
View file

@ -0,0 +1,40 @@
#ifndef OPENGLTERRAIN_H
#define OPENGLTERRAIN_H
#include "opengl_global.h"
#include "OpenGLPart.h"
#include <QVector>
#include <QList>
#include <QMutex>
namespace paysages {
namespace opengl {
class OPENGLSHARED_EXPORT OpenGLTerrain:public OpenGLPart
{
public:
OpenGLTerrain(OpenGLRenderer* renderer);
virtual ~OpenGLTerrain();
virtual void initialize() override;
virtual void update() override;
virtual void render() override;
void performChunksMaintenance();
private:
OpenGLShaderProgram* program;
ParallelPool* work;
QVector<ExplorerChunkTerrain*> _chunks;
QList<ExplorerChunkTerrain*> _updateQueue;
QMutex _lock_chunks;
};
}
}
#endif // OPENGLTERRAIN_H

178
src/render/opengl/WidgetExplorer.cpp
View file

@ -17,44 +17,6 @@
#include "Scenery.h"
#include "LightingManager.h"
class ChunkMaintenanceThread : public QThread
{
public:
ChunkMaintenanceThread(WidgetExplorer* wanderer)
{
_wanderer = wanderer;
_running = true;
}
void askStop()
{
_running = false;
}
static inline void usleep(unsigned long us)
{
QThread::usleep(us);
}
protected:
void run()
{
while (_running)
{
_wanderer->performChunksMaintenance();
QThread::usleep(10000);
}
}
private:
bool _running;
WidgetExplorer* _wanderer;
};
static QVector<ChunkMaintenanceThread*> _threads;
WidgetExplorer::WidgetExplorer(QWidget *parent, CameraDefinition* camera, Scenery* scenery) :
QGLWidget(parent)
{
@ -71,9 +33,6 @@ QGLWidget(parent)
_renderer->getLightingManager()->setSpecularity(false);
_renderer->disableClouds();
_inited = false;
_updated = false;
_average_frame_time = 0.05;
_quality = 3;
_last_mouse_x = 0;
@ -84,103 +43,10 @@ QGLWidget(parent)
WidgetExplorer::~WidgetExplorer()
{
stopRendering();
for (int i = 0; i < _chunks.count(); i++)
{
delete _chunks[i];
}
delete _current_camera;
delete _renderer;
}
void WidgetExplorer::startRendering()
{
// Add terrain
int chunks = 20;
double size = 400.0;
double chunksize = size / (double) chunks;
double start = -size / 2.0;
double water_height = _renderer->getWaterRenderer()->getHeightInfo().base_height;
for (int i = 0; i < chunks; i++)
{
for (int j = 0; j < chunks; j++)
{
ExplorerChunkTerrain* chunk = new ExplorerChunkTerrain(_renderer, start + chunksize * (double) i, start + chunksize * (double) j, chunksize, chunks, water_height);
_chunks.append(chunk);
_updateQueue.append(chunk);
}
}
// Start rendering workers
int nbcore;
_alive = true;
nbcore = QThread::idealThreadCount();
if (nbcore < 1)
{
nbcore = 1;
}
for (int i = 0; i < nbcore; i++)
{
_threads.append(new ChunkMaintenanceThread(this));
}
for (int i = 0; i < _threads.count(); i++)
{
_threads[i]->start();
}
}
void WidgetExplorer::stopRendering()
{
for (int i = 0; i < _threads.count(); i++)
{
_threads[i]->askStop();
}
_alive = false;
for (int i = 0; i < _threads.count(); i++)
{
_threads[i]->wait();
}
}
bool _cmpChunks(const BaseExplorerChunk* c1, const BaseExplorerChunk* c2)
{
return c1->priority > c2->priority;
}
void WidgetExplorer::performChunksMaintenance()
{
BaseExplorerChunk* chunk;
_lock_chunks.lock();
if (_updateQueue.count() > 0)
{
chunk = _updateQueue.takeFirst();
_lock_chunks.unlock();
}
else
{
_lock_chunks.unlock();
return;
}
if (chunk->maintain())
{
if (!_alive)
{
return;
}
_updated = true;
}
_lock_chunks.lock();
_updateQueue.append(chunk);
_lock_chunks.unlock();
}
void WidgetExplorer::resetCamera()
{
_base_camera->copy(_current_camera);
@ -323,25 +189,7 @@ void WidgetExplorer::wheelEvent(QWheelEvent* event)
void WidgetExplorer::timerEvent(QTimerEvent*)
{
if (!_inited)
{
_inited = true;
startRendering();
}
if (_updated)
{
_updated = false;
updateGL();
}
for (int i = 0; i < _chunks.count(); i++)
{
_chunks[i]->updatePriority(_current_camera);
}
_lock_chunks.lock();
qSort(_updateQueue.begin(), _updateQueue.end(), _cmpChunks);
_lock_chunks.unlock();
updateGL();
}
void WidgetExplorer::initializeGL()
@ -353,11 +201,6 @@ void WidgetExplorer::resizeGL(int w, int h)
{
_current_camera->setRenderSize(w, h);
_renderer->resize(w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
CameraPerspective perspective = _current_camera->getPerspective();
gluPerspective(perspective.yfov * 180.0 / M_PI, perspective.xratio, perspective.znear, perspective.zfar);
}
void WidgetExplorer::paintGL()
@ -376,21 +219,6 @@ void WidgetExplorer::paintGL()
// Background
_renderer->paint();
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
Vector3 camera_location = _current_camera->getLocation();
Vector3 camera_target = _current_camera->getTarget();
Vector3 camera_up = _current_camera->getUpVector();
gluLookAt(camera_location.x, camera_location.y, camera_location.z, camera_target.x, camera_target.y, camera_target.z, camera_up.x, camera_up.y, camera_up.z);
// Render chunks
glEnable(GL_TEXTURE_2D);
for (int i = 0; i < _chunks.count(); i++)
{
glColor3f(1.0, 1.0, 1.0);
_chunks[i]->render(this);
}
frame_time = 0.001 * (double) start_time.msecsTo(QTime::currentTime());
_average_frame_time = _average_frame_time * 0.8 + frame_time * 0.2;
@ -406,13 +234,13 @@ void WidgetExplorer::paintGL()
}
// Messages
if (!_inited)
/*if (!_inited)
{
glColor3f(0.0, 0.0, 0.0);
renderText(6, height() - 10, tr("Please wait while loading scene..."));
glColor3f(1.0, 1.0, 1.0);
renderText(5, height() - 9, tr("Please wait while loading scene..."));
}
}*/
while ((error_code = glGetError()) != GL_NO_ERROR)
{

14
src/render/opengl/WidgetExplorer.h
View file

@ -5,8 +5,6 @@
#include <QGLWidget>
#include <QMutex>
namespace paysages {
namespace opengl {
@ -17,8 +15,6 @@ public:
WidgetExplorer(QWidget* parent, CameraDefinition* camera, Scenery* scenery);
~WidgetExplorer();
void performChunksMaintenance();
public slots:
void resetCamera();
void validateCamera();
@ -35,20 +31,10 @@ protected:
void paintGL();
private:
void startRendering();
void stopRendering();
CameraDefinition* _current_camera;
CameraDefinition* _base_camera;
OpenGLRenderer* _renderer;
bool _inited;
bool _updated;
QVector<BaseExplorerChunk*> _chunks;
QList<BaseExplorerChunk*> _updateQueue;
bool _alive;
QMutex _lock_chunks;
double _average_frame_time;
int _quality;

8
src/render/opengl/opengl.pro
View file

@ -15,7 +15,6 @@ include(../../common.pri)
SOURCES += \
OpenGLRenderer.cpp \
BaseExplorerChunk.cpp \
ExplorerChunkTerrain.cpp \
WidgetExplorer.cpp \
OpenGLShaderProgram.cpp \
@ -23,12 +22,12 @@ SOURCES += \
OpenGLSkybox.cpp \
OpenGLWater.cpp \
OpenGLSharedState.cpp \
OpenGLVariable.cpp
OpenGLVariable.cpp \
OpenGLTerrain.cpp
HEADERS +=\
opengl_global.h \
OpenGLRenderer.h \
BaseExplorerChunk.h \
ExplorerChunkTerrain.h \
WidgetExplorer.h \
OpenGLShaderProgram.h \
@ -36,7 +35,8 @@ HEADERS +=\
OpenGLSkybox.h \
OpenGLWater.h \
OpenGLSharedState.h \
OpenGLVariable.h
OpenGLVariable.h \
OpenGLTerrain.h
unix:!symbian {
maemo5 {

3
src/render/opengl/opengl_global.h
View file

@ -15,12 +15,13 @@ namespace paysages {
namespace opengl {
class WidgetExplorer;
class OpenGLRenderer;
class BaseExplorerChunk;
class OpenGLShaderProgram;
class OpenGLSharedState;
class OpenGLVariable;
class OpenGLSkybox;
class OpenGLWater;
class OpenGLTerrain;
class ExplorerChunkTerrain;
}
}
using namespace paysages::opengl;

55
src/system/ParallelPool.cpp Normal file
View file

@ -0,0 +1,55 @@
#include "ParallelPool.h"
#include "System.h"
#include "Thread.h"
static void* _threadFunction(void* data)
{
ParallelPool* pool = (ParallelPool*)data;
pool->work();
return NULL;
}
ParallelPool::ParallelPool()
{
running = false;
}
ParallelPool::~ParallelPool()
{
if (running)
{
interrupt();
}
for (auto thread : threads)
{
thread->join();
delete thread;
}
threads.clear();
}
void ParallelPool::start(int thread_count)
{
if (running)
{
qCritical("Starting an already started parallel pool !");
return;
}
running = true;
if (thread_count < 0)
{
thread_count = System::getCoreCount();
}
for (int i = 0; i < thread_count; i++)
{
Thread* thread = new Thread(_threadFunction);
thread->start(this);
threads.push_back(thread);
}
}
void ParallelPool::interrupt()
{
running = false;
}

43
src/system/ParallelPool.h Normal file
View file

@ -0,0 +1,43 @@
#ifndef PARALLELPOOL_H
#define PARALLELPOOL_H
#include "system_global.h"
namespace paysages {
namespace system {
/*!
* Pool to handle a group of threads doing the same task.
*/
class ParallelPool
{
public:
ParallelPool();
virtual ~ParallelPool();
/*!
* Start the effective work.
*/
void start(int thread_count=-1);
/*!
* Method called from each thread to do actual work.
*/
virtual void work() = 0;
/*!
* Method called once to interrupt all threads.
*/
virtual void interrupt();
protected:
bool running;
private:
std::vector<Thread*> threads;
};
}
}
#endif // PARALLELPOOL_H

6
src/system/system.pro
View file

@ -24,7 +24,8 @@ SOURCES += \
ParallelQueue.cpp \
CacheFile.cpp \
PictureWriter.cpp \
Logs.cpp
Logs.cpp \
ParallelPool.cpp
HEADERS += \
system_global.h \
@ -38,7 +39,8 @@ HEADERS += \
ParallelQueue.h \
CacheFile.h \
PictureWriter.h \
Logs.h
Logs.h \
ParallelPool.h
unix:!symbian {
maemo5 {

1
src/system/system_global.h
View file

@ -15,6 +15,7 @@ namespace system {
class PackStream;
class ParallelQueue;
class ParallelWork;
class ParallelPool;
class Thread;
class Mutex;
}