first commit

CMakeLists.txt

+CMAKE_MINIMUM_REQUIRED (VERSION 2.6) 
+
+################################################################################
+# Global Settings
+################################################################################
+
+# Name of the Project 
+PROJECT(ACGL)
+INCLUDE(${CMAKE_SOURCE_DIR}/cmake/CompileOptions.txt)
+
+# Specify dependencies
+SET(NEED_ACGL_GLOBAL_EXTERN_DIR TRUE)
+INCLUDE(${CMAKE_SOURCE_DIR}/cmake/GlobalAndLocalExternACGL.txt)
+
+# OpenGL Support
+IF(NOT DEFINED OPENGL_SUPPORT)
+    IF(NOT DEFINED OPENGL_SUPPORT_CORE_4_0)
+        SET(OPENGL_SUPPORT_CORE_4_0 FALSE CACHE BOOL "")
+    ENDIF()
+
+    IF(NOT DEFINED OPENGL_SUPPORT_ES_2_1)
+        SET(OPENGL_SUPPORT_ES_2_1 FALSE CACHE BOOL "")
+    ENDIF()
+    IF(OPENGL_SUPPORT_CORE_4_0)
+        SET(OPENGL_SUPPORT_LIST ${OPENGL_SUPPORT_LIST} GL_CORE_4_0)
+    ENDIF()
+
+    IF(OPENGL_SUPPORT_ES_2_1)
+        SET(OPENGL_SUPPORT_LIST ${OPENGL_SUPPORT_LIST} GL_ES_2_1)
+    ENDIF()
+ELSE()
+    SET(OPENGL_SUPPORT_LIST ${OPENGL_SUPPORT})
+ENDIF()
+
+FOREACH(OPENGL_SUPPORT ${OPENGL_SUPPORT_LIST} )
+    ################################################################################
+    # Basic Configuration
+    ################################################################################
+
+    # Name of the Project 
+    PROJECT(AC${OPENGL_SUPPORT})
+
+    # Where to find the cmake finders?
+    SET(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH})
+
+    # Target directory
+    SET(LIBRARY_OUTPUT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/lib")
+
+    ################################################################################
+    # Project Files
+    ################################################################################
+
+    # Find all used files of certain file-types
+    FILE(GLOB_RECURSE SOURCE_FILES "${CMAKE_CURRENT_SOURCE_DIR}/src/*.cc")
+
+    # Add ACGL to the include path
+    INCLUDE_DIRECTORIES("${CMAKE_CURRENT_SOURCE_DIR}/include")
+
+    ################################################################################
+    # External Libraries
+    ################################################################################
+
+    # Qt
+    SET(QT_USE_QTOPENGL TRUE)
+    FIND_PACKAGE(Qt4 REQUIRED)
+    INCLUDE(${QT_USE_FILE})
+    SET(LIBRARIES ${LIBRARIES} ${QT_LIBRARIES})
+
+    # GLM
+    FIND_PACKAGE(GLM REQUIRED)
+    INCLUDE_DIRECTORIES(${GLM_INCLUDE_DIR})
+
+    # GLEW
+    FIND_PACKAGE(GLEW REQUIRED)
+    INCLUDE_DIRECTORIES(${GLEW_INCLUDE_DIR})
+    SET(LIBRARIES ${LIBRARIES} ${GLEW_LIBRARIES})
+
+    ################################################################################
+    # Final Definition
+    ################################################################################
+
+    # Define the Project, add all required sources and dependencies to it
+    ADD_LIBRARY(AC${OPENGL_SUPPORT}${COMPILE_POSTFIX} STATIC ${SOURCE_FILES})
+    TARGET_LINK_LIBRARIES(AC${OPENGL_SUPPORT}${COMPILE_POSTFIX} ${LIBRARIES})
+ENDFOREACH()
+

include/ACGL/ACGL.hh

+////////////////////////////////////////////////////////////////////////////////
+// Copyright (c) 2011, Computer Graphics Group RWTH Aachen University         //
+// All rights reserved.                                                       //
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef ACGL_HH
+#define ACGL_HH
+
+/*
+ * Include this in all ACGL (header)-files. It will include stuff that is used in
+ * almost every file:
+   * the used datatypes
+   * macros and defines used at compile-time
+   * logging
+ */
+
+#include <ACGL/Base/CompileTimeSettings.hh>
+#include <ACGL/Types.hh>
+#include <ACGL/Utils/Log.hh>
+
+namespace ACGL
+{
+
+void init(void);
+    
+};
+
+#endif // ACGL_HH

include/ACGL/Base/CompileTimeSettings.hh

+////////////////////////////////////////////////////////////////////////////////
+// Copyright (c) 2011, Computer Graphics Group RWTH Aachen University         //
+// All rights reserved.                                                       //
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef COMPILETIMESETTINGS_HH
+#define COMPILETIMESETTINGS_HH
+
+/*
+ * OpenGL error checking
+ *
+ * By default, only critical errors will get checked in release build
+ * and critical&common in debug build.
+ *
+ * This can get overwritten with a compile flag define:
+ *  -DACGL_CHECK_NO_GL_ERRORS
+ *    No error checking at all
+ *  -DACGL_CHECK_CRITICAL_GL_ERRORS
+ *    Places will get checked where errors like out of memory can occur.
+ *    This will detect runtime errors which can happen even if the program
+ *    is bug free.
+ *    Switching this on shouldn't be a performance hit.
+ *  -DACGL_CHECK_COMMON_GL_ERRORS
+ *    Problems that happen more often while developing like typos in uniform
+ *    names. All placed where strings are used to call OpenGL objects etc.
+ *  -DACGL_CHECK_RARE_GL_ERRORS
+ *    Most likely bugs in ACGL itself or wrong usage. If there are strange errors
+ *    switch this on to find the reason more quickly. Even normal development
+ *    should work without this. Results in a lot of glGetError!
+ *
+ * Note that all error levels also include the higher ones (COMMON also adds CRITICAL).
+ */
+
+
+#ifndef ACGL_CHECK_NO_GL_ERRORS
+# ifndef ACGL_CHECK_CRITICAL_GL_ERRORS
+#  ifndef ACGL_CHECK_COMMON_GL_ERRORS
+#   ifndef ACGL_CHECK_RARE_GL_ERRORS
+//   if nothing is defined, use defaults:
+#    ifdef DEBUG
+#     define ACGL_CHECK_COMMON_GL_ERRORS
+#    else
+#     define ACGL_CHECK_CRITICAL_GL_ERRORS
+#    endif
+#   endif
+#  endif
+# endif
+#endif
+
+
+// if rare is set, set also common:
+#ifdef ACGL_CHECK_RARE_GL_ERRORS
+# ifndef ACGL_CHECK_COMMON_GL_ERRORS
+#  define ACGL_CHECK_COMMON_GL_ERRORS
+# endif
+#endif
+
+// if common is set, set also critical:
+#ifdef ACGL_CHECK_COMMON_GL_ERRORS
+# ifndef ACGL_CHECK_CRITICAL_GL_ERRORS
+#  define ACGL_CHECK_CRITICAL_GL_ERRORS
+# endif
+#endif
+
+// if critical is set, NO must not be set:
+#ifdef ACGL_CHECK_CRITICAL_GL_ERRORS
+# ifdef ACGL_CHECK_NO_GL_ERRORS
+#  undef ACGL_CHECK_NO_GL_ERRORS
+# endif
+#endif
+
+
+
+#endif // COMPILETIMESETTINGS_HH

include/ACGL/Base/Settings.hh

+////////////////////////////////////////////////////////////////////////////////
+// Copyright (c) 2011, Computer Graphics Group RWTH Aachen University         //
+// All rights reserved.                                                       //
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef ACGL_BASE_FRAMEWORKSETTINGS_HH
+#define ACGL_BASE_FRAMEWORKSETTINGS_HH
+
+#include <ACGL/Base/Singleton.hh>
+#include <string>
+
+namespace ACGL{
+namespace Base{
+
+class Settings : public Singleton<Settings>
+{
+    friend class Singleton<Settings>;
+    
+	// ==================================================================================================== \/
+    // ========================================================================= Constructors / Destructors \/
+	// ==================================================================================================== \/
+protected:
+    //! Constructor is protected => singleton.
+    Settings()
+    :   mResourcePath (""),
+        mTexturePath  ("Texture/"),
+        mGeometryPath ("Geometry/"),
+        mShaderPath   ("Shader/")
+    {}
+        
+public:
+    ~Settings(){}
+    
+	// ==================================================================================================== \/
+	// ============================================================================================ METHODS \/
+	// ==================================================================================================== \/
+public:
+    inline void setResourcePath (const std::string &_path) { mResourcePath = _path; }
+    inline void setTexturePath  (const std::string &_path) { mTexturePath  = _path; }
+    inline void setGeometryPath (const std::string &_path) { mGeometryPath = _path; }
+    inline void setShaderPath   (const std::string &_path) { mShaderPath   = _path; }
+
+    inline const std::string& getResourcePath() const { return mResourcePath; }
+    inline const std::string& getTexturePath()  const { return mTexturePath;  }
+    inline const std::string& getGeometryPath() const { return mGeometryPath; }
+    inline const std::string& getShaderPath()   const { return mShaderPath;   }
+
+    inline const std::string getFullTexturePath()  const { return mResourcePath + mTexturePath;  }
+    inline const std::string getFullGeometryPath() const { return mResourcePath + mGeometryPath; }
+    inline const std::string getFullShaderPath()   const { return mResourcePath + mShaderPath;   }
+    
+    
+	// ==================================================================================================== \/
+	// ============================================================================================= FIELDS \/
+	// ==================================================================================================== \/
+private:
+    std::string mResourcePath;
+    std::string mTexturePath;
+    std::string mGeometryPath;
+    std::string mShaderPath;
+};
+
+} // Base
+} // ACGL
+
+#endif // FRAMEWORKSETTINGS_HH

include/ACGL/Base/Singleton.hh

+////////////////////////////////////////////////////////////////////////////////
+// Copyright (c) 2011, Computer Graphics Group RWTH Aachen University         //
+// All rights reserved.                                                       //
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef SINGLETON_HH
+#define SINGLETON_HH
+
+#include <tr1/memory>
+
+namespace ACGL{
+namespace Base{
+
+template<typename CLASS>
+class Singleton
+{
+public:
+    virtual ~Singleton(void) {}
+    
+    static std::tr1::shared_ptr<CLASS> the(void)
+    {
+        if(!spInstance)
+            spInstance.reset(new CLASS());
+        return(spInstance);
+    }
+    
+protected:
+    Singleton(void){}
+private:
+    Singleton(const Singleton&){}
+    
+private:
+    static std::tr1::shared_ptr<CLASS> spInstance;
+    
+};
+
+template<typename CLASS>
+std::tr1::shared_ptr<CLASS> Singleton<CLASS>::spInstance = std::tr1::shared_ptr<CLASS>();
+
+} // Base
+} // ACGL
+
+#endif

include/ACGL/GL.hh

+////////////////////////////////////////////////////////////////////////////////
+// Copyright (c) 2011, Computer Graphics Group RWTH Aachen University         //
+// All rights reserved.                                                       //
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef ACGL_GL_HH
+#define ACGL_GL_HH
+
+/*
+ * This simple OpenGL wrapper is used to include OpenGL, GLU, GLUT and GLEW
+ * on different platforms.
+ *
+ * While these includes are located in a subdirectory of GL/ on most systems,
+ * Apple hides them on different locations.
+ *
+ * Robert Menzel
+ */
+
+/*
+ * defines, what we need.
+ * Change this if you like.
+ * You don't have to include GL extra, if you need GLUT etc...
+ *
+ * QT also includes Glu!
+ *
+ * USE_GLEW and USE_GLEW_LOCAL are mutual exclusive, define only one
+ * change GLEW_LOCAL_PATH if you use USE_GLEW_LOCAL!
+ *
+ */
+
+#define USE_GL
+//#define USE_GLU
+//#define USE_GLUT
+#define USE_QT
+
+#define USE_GLEW
+//#define USE_GLEW_LOCAL
+//#define GLEW_LOCAL_PATH <GL/glew.h>
+
+// We can try to build against OpenGL core profile or compatibility (core means automatically
+// 3.2 or higher). On MacOS X 10.7 Lion we can choose between 2.1 or 3.2 core, but 3.2
+// compatibility is not an option.
+//#define USE_OPENGL_CORE_PROFILE
+
+#ifdef __APPLE__
+#include <TargetConditionals.h>
+#endif
+
+#if (defined(TARGET_OS_IPHONE) || defined(TARGET_IPHONE_SIMULATOR))
+    #if (TARGET_OS_IPHONE == 1)
+            #define PLATFORM_IOS
+            #define OPENGL_ES
+        #ifdef USE_QT
+            #undef USE_QT
+        #endif
+            #ifdef USE_GLEW
+                    #undef USE_GLEW
+            #endif
+            #ifdef USE_GLEW_LOCAL
+                    #undef USE_GLEW_LOCAL
+            #endif
+    #endif
+#endif
+
+/*
+ * No editing needed from here on!
+ */
+
+#ifdef USE_GLEW 
+	#ifdef USE_GLEW_LOCAL
+        #error "OpenGLWrapper.hh: Don't include glew from your OS AND a local glew version..."
+	#endif
+#endif
+
+// we have allways to include glew first!
+#ifdef USE_GLEW
+	#if defined(__APPLE__) || defined(MACOSX)
+		#include <OpenGL/glew.h>
+	#else
+		#include <GL/glew.h>
+	#endif
+#endif // USE_GLEW
+
+#ifdef USE_GLEW_LOCAL
+	#include GLEW_LOCAL_PATH
+#endif // USE_GLEW_LOCAL
+
+#ifdef USE_GL
+	#if defined(__APPLE__) || defined(MACOSX)
+        #ifdef OPENGL_ES
+			#import <OpenGLES/ES1/gl.h>
+			#import <OpenGLES/ES1/glext.h>
+			#import <OpenGLES/ES2/gl.h>
+			#import <OpenGLES/ES2/glext.h>
+        #else
+            #ifdef USE_OPENGL_CORE_PROFILE
+                #include <GL3/gl3.h>
+            #else
+                #include <OpenGL/gl.h>
+            #endif
+        #endif
+	#else
+        #ifdef USE_OPENGL_CORE_PROFILE
+            #include <GL3/gl3.h>
+        #else
+            #include <GL/gl.h>
+        #endif
+	#endif
+#endif // USE_GL
+
+#ifdef USE_GLU
+	#if defined(__APPLE__) || defined(MACOSX)
+		#include <OpenGL/glu.h>
+	#else
+		#include <GL/glu.h>
+	#endif
+#endif // USE_GLU
+
+#ifdef USE_GLUT
+	#if defined(__APPLE__) || defined(MACOSX)
+		#include <GLUT/glut.h>
+	#else
+		#include <GL/glut.h>
+	#endif
+#endif // USE_GLUT
+
+#ifdef USE_QT
+	#include <QtOpenGL/qgl.h>
+#endif // USE_QT
+
+#endif // ACGL_GL_HH

include/ACGL/GLUtils/Camera.hh

+////////////////////////////////////////////////////////////////////////////////
+// Copyright (c) 2011, Computer Graphics Group RWTH Aachen University         //
+// All rights reserved.                                                       //
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef ACGL_GLUTILS_CAMERA_HH
+#define ACGL_GLUTILS_CAMERA_HH
+
+#include <ACGL/Math/Math.hh>
+
+namespace ACGL{
+namespace GLUtils{
+
+class Camera
+{
+public:
+    Camera(void)
+    :   mRight    (),
+        mUp       (),
+        mForward  (),
+        mWidth    (800),
+        mHeight   (600),
+        mFOV      (75.0f),
+        mNear     (0.1f),
+        mFar      (10000.0f),
+        mPitch    (0.0f),
+        mYaw      (0.0f),
+        mRoll     (0.0f),
+        mPosition (3.0f, 2.0f, 3.0f),
+        mTarget   (0.0f, 0.0f, 0.0f)
+    {
+        updateLocalCoordinateSystemByTarget();
+        updateOrientationByLocalCoordinateSystem();
+    }
+    Camera(
+        int_t            width,
+        int_t            height,
+        float            fov,
+        float            near,
+        float            far,
+        const glm::vec3& position,
+        const glm::vec3& target)
+    :   mRight    (),
+        mUp       (),
+        mForward  (),
+        mWidth    (width),
+        mHeight   (height),
+        mFOV      (fov),
+        mNear     (near),
+        mFar      (far),
+        mPitch    (0.0f),
+        mYaw      (0.0f),
+        mRoll     (0.0f),
+        mPosition (position),
+        mTarget   (target)
+    {
+        updateLocalCoordinateSystemByTarget();
+        updateOrientationByLocalCoordinateSystem();
+    }
+    Camera(const Camera& other)
+    :   mRight    (other.mRight),
+        mUp       (other.mUp),
+        mForward  (other.mForward),
+        mWidth    (other.mWidth),
+        mHeight   (other.mHeight),
+        mFOV      (other.mFOV),
+        mNear     (other.mNear),
+        mFar      (other.mFar),
+        mPitch    (other.mPitch),
+        mYaw      (other.mYaw),
+        mRoll     (other.mRoll),
+        mPosition (other.mPosition),
+        mTarget   (other.mTarget)
+    {
+    }
+    ~Camera(void) {}
+
+    inline       float      getAspectRatio      () const { return (float)mWidth / (float)mHeight;       }
+    inline const glm::vec3& getUpDirection      () const { return mUp;                                  }
+    inline const glm::vec3& getRightDirection   () const { return mRight;                               }
+    inline const glm::vec3& getForwardDirection () const { return mForward;                             }
+    inline       int_t      getWidth            () const { return mWidth;                               }
+    inline       int_t      getHeight           () const { return mHeight;                              }
+    inline       float      getFOV              () const { return mFOV;                                 }
+    inline       float      getNear             () const { return mNear;                                }
+    inline       float      getFar              () const { return mFar;                                 }
+    inline       float      getPitch            () const { return mPitch;                               }
+    inline       float      getYaw              () const { return mYaw;                                 }
+    inline       float      getRoll             () const { return mRoll;                                }
+    inline const glm::vec3& getPosition         () const { return mPosition;                            }
+    inline const glm::vec3& getTarget           () const { return mTarget;                              }
+    
+    inline void setWidth  (int_t   width)  { mWidth  = width;  }
+    inline void setHeight (int_t   height) { mHeight = height; }
+    inline void setFOV    (float fov)      { mFOV    = fov;    }
+    inline void setNear   (float near)     { mNear   = near;   }
+    inline void setFar    (float far)      { mFar    = far;    }
+    inline void setPitch  (float pitch)    { mPitch  = pitch;  }
+    inline void setYaw    (float yaw)      { mYaw    = yaw;    }
+    inline void setRoll   (float roll)     { mRoll   = roll;   }
+
+    inline void setPosition (const glm::vec3& position, bool moveTarget   = true) { if(moveTarget)   { mTarget   += position - mPosition; } mPosition = position; }
+    inline void setTarget   (const glm::vec3& target,   bool movePosition = true) { if(movePosition) { mPosition += target   - mTarget;   } mTarget   = target;   }
+    
+    inline void setPitchAroundTarget(float pitch)
+    { 
+        mPitch = pitch;
+        updateLocalCoordinateSystemByOrientation();
+        mPosition = mTarget - glm::length(mTarget - mPosition) * mForward;
+    }
+    inline void setYawAroundTarget(float yaw)
+    { 
+        mYaw = yaw;
+        updateLocalCoordinateSystemByOrientation(); 
+        mPosition = mTarget - glm::length(mTarget - mPosition) * mForward;
+    }
+    
+    glm::mat4 getProjectionMatrix() const;
+    glm::mat4 getViewMatrix() const;
+    glm::mat4 getInverseViewMatrix() const;
+
+    void updateLocalCoordinateSystemByTarget(const glm::vec3& up = glm::vec3(0.0f, 1.0f, 0.0f));
+    void updateLocalCoordinateSystemByOrientation(bool moveTarget = true);
+    void updateOrientationByLocalCoordinateSystem();
+
+private:
+    glm::vec3 mRight;
+    glm::vec3 mUp;
+    glm::vec3 mForward;
+    int_t     mWidth;
+    int_t     mHeight;
+    float     mFOV;
+    float     mNear;
+    float     mFar;
+    float     mPitch;
+    float     mYaw;
+    float     mRoll;
+    glm::vec3 mPosition;
+    glm::vec3 mTarget;
+};
+
+} // GLUtils
+} // ACGL
+
+#endif // ACGL_GLUTILS_CAMERA_HH

include/ACGL/GLUtils/CoordinateSystem.hh

+////////////////////////////////////////////////////////////////////////////////
+// Copyright (c) 2011, Computer Graphics Group RWTH Aachen University         //
+// All rights reserved.                                                       //
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef ACGL_GLUTILS_COORDINATESYSTEM_HH
+#define ACGL_GLUTILS_COORDINATESYSTEM_HH
+
+#include <ACGL/Math/Math.hh>
+#include <ACGL/Types.hh>
+
+#include <vector>
+
+namespace ACGL{
+namespace GLUtils{
+
+class CoordinateSystem
+{
+public:
+    CoordinateSystem(int_t outerLines = 100, int_t innerRange = 2)
+    :   mOuterLines(outerLines),
+        mInnerRange(innerRange),
+        mInnerLines((innerRange * 2 + 1) * 10),
+        mInterpolC(0.0f),
+        mOuterLinesCA(mOuterLines * 2),
+        mOuterLinesCB(mOuterLines * 2),
+        mInnerLinesCA(mInnerLines * 2),
+        mInnerLinesCB(mInnerLines * 2)
+    {}
+    ~CoordinateSystem() {}
+
+    /*! Adjust the grid concerning the given absolut position */
+    template<int_t A, int_t B, int_t C>
+    void adjust(const glm::vec3& pos, const glm::vec3& forward);
+
+    inline int_t getOuterLines() const { return mOuterLines; }
+    inline int_t getInnerLines() const { return mInnerLines; }
+    inline float getInterpolC()  const { return mInterpolC; }
+
+    inline const std::vector<glm::vec3>& getOuterLinesCA() const { return mOuterLinesCA; }
+    inline const std::vector<glm::vec3>& getOuterLinesCB() const { return mOuterLinesCB; }
+    inline const std::vector<glm::vec3>& getInnerLinesCA() const { return mInnerLinesCA; }
+    inline const std::vector<glm::vec3>& getInnerLinesCB() const { return mInnerLinesCB; }
+
+