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VideoCore integrated into Application

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This commit is contained in:
James Turk 2005-08-08 07:27:50 +00:00
parent 2d6fba1784
commit 20545128d2
5 changed files with 271 additions and 93 deletions
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110
include/Application.hpp
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@ -5,7 +5,7 @@
// James Turk (jpt2433@rit.edu)
//
// Version:
// $Id: Application.hpp,v 1.13 2005/08/08 07:00:46 cozman Exp $
// $Id: Application.hpp,v 1.14 2005/08/08 07:27:50 cozman Exp $
#ifndef PHOTON_APPLICATION_HPP
#define PHOTON_APPLICATION_HPP
@ -125,6 +125,88 @@ public:
// True if application is active, false otherwise.
bool isActive();
// Group: Ortho
public:
// Function: setOrthoView
// Sets new ortho viewport within a rectangular portion of the screen.
// All drawing is relative to the rectangle, x,y becomes 0,0 and anything
// drawn outside rect is clipped.
//
// Parameters:
// x - X coord for top left corner of new viewport.
// y - Y coord for top left corner of new viewport.
// viewWidth - Width of new viewport.
// viewHeight - Height of new viewport.
// orthoWidth - Width of ortho perspective.
// orthoHeight - Height of ortho perspective.
void setOrthoView(int x, int y, int viewWidth, int viewHeight,
scalar orthoWidth, scalar orthoHeight);
// Function: setOrthoView
// Sets entire screen as current viewport with a given ortho perspective.
//
// Parameters:
// width - Width of view.
// height - Height of view.
void setOrthoView(scalar width, scalar height);
// Function: setOrthoView
// Sets entire screen as current viewport with a given ortho perspective.
void setOrthoView();
// Group: Perspective
public:
// Function: setPerspectiveView
// Creates a viewport with a given 3D perspective inside of a rectangular
// portion of the screen.
//
// Parameters:
// x - X coord for top left corner of new viewport.
// y - Y coord for top left corner of new viewport.
// width - Width of new viewport.
// height - Height of new viewport.
// fovy - The y axis field of view angle, in degrees.
// zNear - Distance from viewer to near clipping plane.
// zFar - Distance from viewer to far clipping plane.
void setPerspectiveView(int x, int y, int width, int height,
scalar fovy, scalar zNear, scalar zFar);
// Function: setPerspectiveView
// Sets entire screen as current viewport with a given 3D perspective.
//
// Same as call to setPerspective
//
// Parameters:
// fovy - The y axis field of view angle, in degrees.
// zNear - Distance from viewer to near clipping plane.
// zFar - Distance from viewer to far clipping plane.
void setPerspectiveView(scalar fovy, scalar zNear, scalar zFar);
// Group: Viewport/Projection
// These functions are called by the above Ortho/Perspective functions, very
// rarely do they need to be called directly.
public:
// Function: setViewport
// Set the current viewport rectangle within the screen.
void setViewport(int x, int y, int width, int height);
// Function: setOrthoProjection
// Sets an orthographic projection matrix.
//
// Parameters:
// width - Width of view.
// height - Height of view.
void setOrthoProjection(scalar width, scalar height);
// Function: setPerspectiveProjection
// Sets a perspective projection matrix.
//
// Parameters:
// fovy - The y axis field of view angle, in degrees.
// zNear - Distance from viewer to near clipping plane.
// zFar - Distance from viewer to far clipping plane.
void setPerspectiveProjection(scalar fovy, scalar zNear, scalar zFar);
// Group: Input
public:
// Function: keyPressed
@ -237,17 +319,16 @@ public:
// Group: Core Access
public:
video::VideoCore& getVideoCore();
audio::AudioCore& getAudioCore();
void initVideoCore(uint width, uint height);
void initAudioCore(const std::string& deviceName);
// Group: API Initialization
private:
util::VersionInfo initPhysFS(const std::string& arg0);
util::VersionInfo initGLFW();
void initOpenGL();
// Group: Task Classes
// Task Classes
private:
// UpdateTask, does the updating work of AppCore, registered as a Task
// so that user need not call something akin to AppCore::update() every
@ -274,7 +355,16 @@ private:
scalar lastUpdate_;
};
// StateUpdate
// VideoTask, does the updating work of OpenGL
class VideoTask : public Task
{
public:
VideoTask();
void update();
};
// StateUpdate, calls State::update
class StateUpdate : public Task
{
@ -288,7 +378,7 @@ private:
StatePtr state_;
};
// StateRender
// StateRender, calls State::render
class StateRender : public Task
{
@ -302,13 +392,16 @@ private:
StatePtr state_;
};
// Data members
private:
// version number for photon
util::VersionInfo photonVer_;
// Application info
uint dispWidth_;
uint dispHeight_;
uint displayWidth_;
uint displayHeight_;
uint viewportWidth_;
uint viewportHeight_;
// tasks
shared_ptr<UpdateTask> updateTask_;
@ -320,7 +413,6 @@ private:
static std::vector<KeyCode> pressedKeys_;
// Cores
std::auto_ptr<video::VideoCore> videoCore_;
std::auto_ptr<audio::AudioCore> audioCore_;
};

16
include/audio/AudioCore.hpp
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@ -5,7 +5,7 @@
// James Turk (jpt2433@rit.edu)
//
// Version:
// $Id: AudioCore.hpp,v 1.11 2005/08/07 07:12:47 cozman Exp $
// $Id: AudioCore.hpp,v 1.12 2005/08/08 07:27:50 cozman Exp $
#ifdef PHOTON_USE_OPENAL
@ -48,20 +48,6 @@ public:
// Name of audio device currently in use.
std::string getAudioDeviceName() const;
// Group: Initialization
public:
// Function: initAudioDevice
// Initialize audio device. _MUST_ be called prior to any use of audio
// functionality.
//
// Takes an optional parameter, if existant the initialization of the audio
// library will attempt to use the specified audio device, otherwise the
// default device will be used.
//
// Parameters:
// deviceName - Name of audio device to use. (optional, default=default)
static void initAudioDevice(const std::string& deviceName="");
// Group: Error Checking
public:
// Function: checkOpenALError

1
include/photon.hpp
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@ -2,7 +2,6 @@
#define PHOTON_HPP
#include "Kernel.hpp"
#include "AppCore.hpp"
#include "types.hpp"
#include "Application.hpp"
#include "Task.hpp"

4
include/util/Timer.hpp
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@ -5,13 +5,11 @@
// James Turk (jpt2433@rit.edu)
//
// Version:
// $Id: Timer.hpp,v 1.3 2005/08/07 07:12:47 cozman Exp $
// $Id: Timer.hpp,v 1.4 2005/08/08 07:27:50 cozman Exp $
#ifndef PHOTON_UTIL_TIMER_HPP
#define PHOTON_UTIL_TIMER_HPP
#include "AppCore.hpp"
namespace photon
{
namespace util

229
src/Application.cpp
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@ -5,19 +5,20 @@
// James Turk (jpt2433@rit.edu)
//
// Version:
// $Id: Application.cpp,v 1.17 2005/08/08 07:00:46 cozman Exp $
// $Id: Application.cpp,v 1.18 2005/08/08 07:27:50 cozman Exp $
#include "Application.hpp"
#include "physfs.h" // This file depends on physfs
#include "GL/glfw.h" // This file depends on glfw
#include "GL/gl.h" // This file depends on OpenGL
#include "GL/glu.h"
#include <boost/lexical_cast.hpp>
#include "exceptions.hpp"
#include "Log.hpp"
#include "Kernel.hpp"
#include "Application.hpp"
#include "video/VideoCore.hpp"
#include "audio/AudioCore.hpp"
#include "util/filesys/filesys.hpp"
@ -25,12 +26,16 @@
namespace photon
{
// static class members
std::vector<InputListener*> Application::listeners_;
std::vector<KeyCode> Application::pressedKeys_;
// (Con/De)structors ///////////////////////////////////////////////////////////
Application::Application(const std::string& arg0) :
photonVer_(0,0,1), // this is the current version
dispWidth_(0), dispHeight_(0),
displayWidth_(0), displayHeight_(0),
viewportWidth_(0), viewportHeight_(0),
updateTask_(new UpdateTask()),
stateUpdate_(new StateUpdate()),
stateRender_(new StateRender())
@ -50,7 +55,7 @@ Application::Application(const std::string& arg0) :
Application::~Application()
{
if(dispWidth_ && dispHeight_)
if(displayWidth_ && displayHeight_)
{
glfwCloseWindow(); //close GLFW window
}
@ -62,6 +67,8 @@ Application::~Application()
Kernel::destroy(); // destroy Kernel on way out
}
// Window //////////////////////////////////////////////////////////////////////
void Application::createDisplay(uint width, uint height,
uint redBits, uint greenBits, uint blueBits,
uint alphaBits, uint depthBits, uint stencilBits,
@ -75,6 +82,14 @@ void Application::createDisplay(uint width, uint height,
{
throw APIError("Failed to create display.");
}
displayWidth_ = width;
displayHeight_ = height;
glfwSetWindowTitle(title.c_str()); // title is set separately
initOpenGL();
setOrthoView();
Kernel::getInstance().addTask(TaskPtr(new VideoTask()));
// register the callbacks (after a window is open)
glfwSetKeyCallback(Application::keyCallback);
@ -82,12 +97,6 @@ void Application::createDisplay(uint width, uint height,
glfwSetMouseButtonCallback(Application::mouseButtonCallback);
glfwSetMousePosCallback(Application::mouseMoveCallback);
//glfwSetMouseWheelCallback(Application::mouseWheelCallback);
Application::initVideoCore(width, height);
dispWidth_ = width;
dispHeight_ = height;
glfwSetWindowTitle(title.c_str()); // title is set separately
}
void Application::createDisplay(uint width, uint height, uint bpp,
@ -120,6 +129,106 @@ void Application::createDisplay(uint width, uint height, uint bpp,
}
}
void Application::setTitle(const std::string& title)
{
glfwSetWindowTitle(title.c_str());
}
uint Application::getDisplayWidth()
{
return displayWidth_;
}
uint Application::getDisplayHeight()
{
return displayHeight_;
}
bool Application::isActive()
{
return updateTask_->active_;
}
// Ortho ///////////////////////////////////////////////////////////////////////
void Application::setOrthoView(int x, int y, int viewWidth, int viewHeight,
scalar orthoWidth, scalar orthoHeight)
{
// set viewport & ortho projection
setViewport(x,y,viewWidth,viewHeight);
setOrthoProjection(orthoWidth,orthoHeight);
}
void Application::setOrthoView(scalar width, scalar height)
{
// set viewport to fullscreen, then set ortho (alternative ratio)
setViewport(0, 0, displayWidth_, displayHeight_);
setOrthoProjection(width,height);
}
void Application::setOrthoView()
{
// set viewport to fullscreen, then set ortho (1:1 ratio)
setViewport(0, 0, displayWidth_, displayHeight_);
setOrthoProjection(displayWidth_, displayHeight_);
}
// Perspective /////////////////////////////////////////////////////////////////
void Application::setPerspectiveView(int x, int y, int width, int height,
scalar fovy, scalar zNear, scalar zFar)
{
// set viewport & perspective projection
setViewport(x, y, width, height);
setPerspectiveProjection(fovy, zNear, zFar);
}
void Application::setPerspectiveView(scalar fovy, scalar zNear, scalar zFar)
{
// set viewport fullscreen, then set perspective
setViewport(0, 0, displayWidth_, displayHeight_);
setPerspectiveProjection(fovy, zNear, zFar);
}
// Viewport/Projection /////////////////////////////////////////////////////////
void Application::setViewport(int x, int y, int width, int height)
{
// viewport described from bottom corner, so flip y
glViewport(x, displayHeight_-(y+height), width, height);
viewportWidth_ = width;
viewportHeight_ = height;
}
void Application::setOrthoProjection(scalar width, scalar height)
{
// setup default Ortho
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, static_cast<GLdouble>(width), static_cast<GLdouble>(height),
0, -1.0, 1.0);
//back to modelview
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
void Application::setPerspectiveProjection(scalar fovy, scalar zNear, scalar zFar)
{
GLdouble ratio = static_cast<GLdouble>(viewportWidth_) /
static_cast<GLdouble>(viewportHeight_);
//set new projection
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(fovy, ratio, zNear, zFar);
//back to modelview
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
// Input ///////////////////////////////////////////////////////////////////////
bool Application::keyPressed(KeyCode key)
{
return glfwGetKey(key) == GLFW_PRESS;
@ -150,6 +259,8 @@ int Application::getMouseWheelPos()
return glfwGetMouseWheel();
}
// Input Listeners /////////////////////////////////////////////////////////////
void Application::addInputListener(InputListener *listener)
{
// should never happen since listeners add themselves with a this pointer
@ -259,25 +370,21 @@ void GLFWCALL Application::mouseMoveCallback(int x, int y)
}
}
// Timing //////////////////////////////////////////////////////////////////////
scalar Application::getTime()
{
return glfwGetTime() - updateTask_->pausedTime_;
}
void Application::setTitle(const std::string& title)
double Application::getElapsedTime()
{
glfwSetWindowTitle(title.c_str());
return updateTask_->secPerFrame_;
}
video::VideoCore& Application::getVideoCore()
double Application::getFramerate()
{
// return VideoCore if it has been created
if(videoCore_.get() == 0)
{
throw PreconditionException("call to Application::getVideoCore() before"
" Application::initAudioDevice");
}
return *videoCore_;
return 1/updateTask_->secPerFrame_;
}
audio::AudioCore& Application::getAudioCore()
@ -291,19 +398,6 @@ audio::AudioCore& Application::getAudioCore()
return *audioCore_;
}
void Application::initVideoCore(uint width, uint height)
{
// create VideoCore, avoid double initializaiton
if(videoCore_.get() == 0)
{
videoCore_.reset(new video::VideoCore(width, height));
}
else
{
throw PreconditionException("Attempt to double initialize VideoCore");
}
}
void Application::initAudioCore(const std::string& deviceName)
{
// create AudioCore, avoid double initializaiton
@ -317,32 +411,7 @@ void Application::initAudioCore(const std::string& deviceName)
}
}
bool Application::isActive()
{
return updateTask_->active_;
}
double Application::getElapsedTime()
{
return updateTask_->secPerFrame_;
}
double Application::getFramerate()
{
return 1/updateTask_->secPerFrame_;
}
uint Application::getDisplayWidth()
{
return dispWidth_;
}
uint Application::getDisplayHeight()
{
return dispHeight_;
}
// API initialization
// API initialization //////////////////////////////////////////////////////////
util::VersionInfo Application::initPhysFS(const std::string& arg0)
{
@ -364,7 +433,30 @@ util::VersionInfo Application::initGLFW()
return util::VersionInfo(maj,min,patch);
}
// Application's Tasks
void Application::initOpenGL()
{
// Set smooth shading.
glShadeModel(GL_SMOOTH);
// Setup depth checking.
//glDepthFunc(GL_LEQUAL);
//glEnable(GL_DEPTH_TEST);
//setup hints
glHint(GL_PERSPECTIVE_CORRECTION_HINT,GL_NICEST);
glEnable(GL_POLYGON_SMOOTH);
//enable texturing
glEnable(GL_TEXTURE_2D);
//setup alpha blending of 2D textures with the scene
glEnable(GL_BLEND);
glDisable(GL_LIGHTING);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
}
// Tasks ///////////////////////////////////////////////////////////////////////
Application::UpdateTask::UpdateTask() :
Task("Application::UpdateTask", PRI_APP_UPDATE),
@ -379,7 +471,7 @@ void Application::UpdateTask::update()
{
scalar curTime = glfwGetTime() - pausedTime_;
// update the display here instead of VideoCore (since it belongs to glfw)
// update the display here instead of Application (since it belongs to glfw)
glfwSwapBuffers();
glfwGetMousePos(&mouseX_, &mouseY_);
@ -414,8 +506,19 @@ void Application::UpdateTask::update()
}
}
Application::VideoTask::VideoTask() :
Task("Application::VideoTask", PRI_VIDEO_UPDATE)
{
}
void Application::VideoTask::update()
{
// TODO: clear depth/stencil if requested
glClear(GL_COLOR_BUFFER_BIT);
}
Application::StateUpdate::StateUpdate() :
Task("StateUpdate", PRI_NORMAL)
Task("Application::StateUpdate", PRI_NORMAL)
{
}
@ -425,7 +528,7 @@ void Application::StateUpdate::update()
}
Application::StateRender::StateRender() :
Task("StateRender", PRI_RENDER)
Task("Application::StateRender", PRI_RENDER)
{
}