mirror of https://github.com/mosra/magnum.git
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New class EglInterface now handles only EGL, AbstractXContext is able to take any OpenGL interface sublassed from AbstractGlInterface.pull/279/head
Vladimír Vondruš
14 years ago
7 changed files with 502 additions and 272 deletions
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#ifndef Magnum_Contexts_AbstractGlInterface_h |
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#define Magnum_Contexts_AbstractGlInterface_h |
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/*
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Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz> |
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This file is part of Magnum. |
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Magnum is free software: you can redistribute it and/or modify |
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it under the terms of the GNU Lesser General Public License version 3 |
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only, as published by the Free Software Foundation. |
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Magnum is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU Lesser General Public License version 3 for more details. |
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*/ |
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/** @file
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* @brief Class Magnum::Contexts::AbstractGlInterface |
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*/ |
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namespace Magnum { namespace Contexts { |
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/** @brief Base for OpenGL interfaces */ |
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template<class Display, class VisualId, class Window> class AbstractGlInterface { |
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public: |
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/**
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* @brief Get visual ID |
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* |
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* Initializes the interface on given display and returns visual ID. |
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*/ |
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virtual VisualId getVisualId(Display nativeDisplay) = 0; |
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/**
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* @brief Destructor |
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* |
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* Finalizes and closes the interface. |
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*/ |
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virtual ~AbstractGlInterface() {} |
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/** @brief Create context */ |
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virtual void createContext(Window nativeWindow) = 0; |
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/** @brief Make the context current */ |
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virtual void makeCurrent() = 0; |
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/** @brief Swap buffers */ |
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virtual void swapBuffers() = 0; |
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}; |
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}} |
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#endif |
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#ifndef Magnum_Contexts_AbstractXContext_h |
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#define Magnum_Contexts_AbstractXContext_h |
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/*
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Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz> |
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This file is part of Magnum. |
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Magnum is free software: you can redistribute it and/or modify |
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it under the terms of the GNU Lesser General Public License version 3 |
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only, as published by the Free Software Foundation. |
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|
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Magnum is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU Lesser General Public License version 3 for more details. |
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*/ |
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/** @file
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* @brief Class Magnum::Contexts::AbstractXContext |
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*/ |
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#include "Magnum.h" |
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#include <X11/Xlib.h> |
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#include <X11/Xutil.h> |
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/* undef Xlib nonsense to avoid conflicts */ |
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#undef None |
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#undef Always |
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#include "AbstractContext.h" |
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#include "AbstractGlInterface.h" |
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namespace Magnum { namespace Contexts { |
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/**
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@brief Base for X11-based contexts |
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Supports keyboard and mouse handling. |
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@note Not meant to be used directly, see subclasses. |
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*/ |
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class AbstractXContext: public AbstractContext { |
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public: |
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/**
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* @brief Constructor |
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* @param glInterface Interface to OpenGL |
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* @param argc Count of arguments of `main()` function |
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* @param argv Arguments of `main()` function |
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* @param title Window title |
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* @param size Window size |
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* |
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* Creates window with double-buffered OpenGL ES 2 context. |
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*/ |
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AbstractXContext(AbstractGlInterface<Display*, VisualID, Window>* glInterface, int& argc, char** argv, const std::string& title = "Magnum X/EGL context", const Math::Vector2<GLsizei>& size = Math::Vector2<GLsizei>(800, 600)); |
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/**
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* @brief Destructor |
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* |
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* Deletes context and destroys the window. |
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*/ |
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virtual ~AbstractXContext() = 0; |
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int exec(); |
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/** @{ @name Drawing functions */ |
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protected: |
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/** @copydoc GlutContext::viewportEvent() */ |
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virtual void viewportEvent(const Math::Vector2<GLsizei>& size) = 0; |
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/** @copydoc GlutContext::drawEvent() */ |
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virtual void drawEvent() = 0; |
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/** @copydoc GlutContext::swapBuffers() */ |
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inline void swapBuffers() { glInterface->swapBuffers(); } |
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/** @todo implement */ |
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inline void redraw() {} |
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/*@}*/ |
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/** @{ @name Keyboard handling */ |
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public: |
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/** @brief Key */ |
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enum class Key: KeySym { |
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Up = XK_Up, /**< Up arrow */ |
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Down = XK_Down, /**< Down arrow */ |
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Left = XK_Left, /**< Left arrow */ |
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Right = XK_Right, /**< Right arrow */ |
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F1 = XK_F1, /**< F1 */ |
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F2 = XK_F2, /**< F2 */ |
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F3 = XK_F3, /**< F3 */ |
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F4 = XK_F4, /**< F4 */ |
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F5 = XK_F5, /**< F5 */ |
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F6 = XK_F6, /**< F6 */ |
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F7 = XK_F7, /**< F7 */ |
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F8 = XK_F8, /**< F8 */ |
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F9 = XK_F9, /**< F9 */ |
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F10 = XK_F10, /**< F10 */ |
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F11 = XK_F11, /**< F11 */ |
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F12 = XK_F12, /**< F12 */ |
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Home = XK_Home, /**< Home */ |
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End = XK_End, /**< End */ |
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PageUp = XK_Page_Up, /**< Page up */ |
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PageDown = XK_Page_Down, /**< Page down */ |
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Space = XK_space, /**< Space */ |
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Comma = XK_comma, /**< Comma */ |
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Period = XK_period, /**< Period */ |
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Minus = XK_minus, /**< Minus */ |
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Plus = XK_plus, /**< Plus */ |
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Slash = XK_slash, /**< Slash */ |
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Percent = XK_percent, /**< Percent */ |
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Equal = XK_equal, /**< Equal */ |
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Zero = XK_0, /**< Zero */ |
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One = XK_1, /**< One */ |
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Two = XK_2, /**< Two */ |
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Three = XK_3, /**< Three */ |
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Four = XK_4, /**< Four */ |
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Five = XK_5, /**< Five */ |
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Six = XK_6, /**< Six */ |
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Seven = XK_7, /**< Seven */ |
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Eight = XK_8, /**< Eight */ |
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Nine = XK_9, /**< Nine */ |
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A = XK_a, /**< Small letter A */ |
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B = XK_b, /**< Small letter B */ |
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C = XK_c, /**< Small letter C */ |
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D = XK_d, /**< Small letter D */ |
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E = XK_e, /**< Small letter E */ |
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F = XK_f, /**< Small letter F */ |
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G = XK_g, /**< Small letter G */ |
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H = XK_h, /**< Small letter H */ |
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I = XK_i, /**< Small letter I */ |
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J = XK_j, /**< Small letter J */ |
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K = XK_k, /**< Small letter K */ |
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L = XK_l, /**< Small letter L */ |
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M = XK_m, /**< Small letter M */ |
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N = XK_n, /**< Small letter N */ |
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O = XK_o, /**< Small letter O */ |
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P = XK_p, /**< Small letter P */ |
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Q = XK_q, /**< Small letter Q */ |
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R = XK_r, /**< Small letter R */ |
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S = XK_s, /**< Small letter S */ |
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T = XK_t, /**< Small letter T */ |
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U = XK_u, /**< Small letter U */ |
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V = XK_v, /**< Small letter V */ |
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W = XK_w, /**< Small letter W */ |
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X = XK_x, /**< Small letter X */ |
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Y = XK_y, /**< Small letter Y */ |
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Z = XK_z /**< Small letter Z */ |
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}; |
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protected: |
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/**
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* @brief Key press event |
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* @param key Key pressed |
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* @param position Cursor position |
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* |
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* Called when an key is pressed. Default implementation does nothing. |
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*/ |
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virtual void keyPressEvent(Key key, const Math::Vector2<int>& position); |
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/**
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* @brief Key press event |
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* @param key Key released |
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* @param position Cursor position |
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* |
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* Called when an key is released. Default implementation does nothing. |
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*/ |
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virtual void keyReleaseEvent(Key key, const Math::Vector2<int>& position); |
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/*@}*/ |
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/** @{ @name Mouse handling */ |
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public: |
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/** @brief Mouse button */ |
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enum class MouseButton: unsigned int { |
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Left = Button1, /**< Left button */ |
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Middle = Button2, /**< Middle button */ |
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Right = Button3, /**< Right button */ |
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WheelUp = Button4, /**< Wheel up */ |
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WheelDown = Button5 /**< Wheel down */ |
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}; |
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protected: |
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/**
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* @brief Mouse press event |
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* |
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* Called when mouse button is pressed. Default implementation does |
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* nothing. |
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*/ |
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virtual void mousePressEvent(MouseButton button, const Math::Vector2<int>& position); |
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/**
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* @brief Mouse release event |
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* |
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* Called when mouse button is released. Default implementation does |
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* nothing. |
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*/ |
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virtual void mouseReleaseEvent(MouseButton button, const Math::Vector2<int>& position); |
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/*@}*/ |
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private: |
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Display* display; |
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Window window; |
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Atom deleteWindow; |
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AbstractGlInterface<Display*, VisualID, Window>* glInterface; |
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/** @todo Get this from the created window */ |
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Math::Vector2<GLsizei> viewportSize; |
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}; |
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inline void AbstractXContext::keyPressEvent(AbstractXContext::Key, const Math::Vector2<int>&) {} |
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inline void AbstractXContext::keyReleaseEvent(AbstractXContext::Key, const Math::Vector2<int>&) {} |
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inline void AbstractXContext::mousePressEvent(AbstractXContext::MouseButton, const Math::Vector2<int>&) {} |
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inline void AbstractXContext::mouseReleaseEvent(AbstractXContext::MouseButton, const Math::Vector2<int>&) {} |
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}} |
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#endif |
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@ -0,0 +1,86 @@ |
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/*
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Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz> |
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This file is part of Magnum. |
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Magnum is free software: you can redistribute it and/or modify |
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it under the terms of the GNU Lesser General Public License version 3 |
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only, as published by the Free Software Foundation. |
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Magnum is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU Lesser General Public License version 3 for more details. |
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*/ |
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#include "EglInterface.h" |
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namespace Magnum { namespace Contexts { |
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EglInterface::~EglInterface() { |
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eglDestroyContext(display, context); |
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eglDestroySurface(display, surface); |
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eglTerminate(display); |
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} |
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VisualId EglInterface::getVisualId(EGLNativeDisplayType nativeDisplay) { |
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/* Initialize */ |
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display = eglGetDisplay(nativeDisplay); |
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eglInitialize(display, 0, 0); |
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#ifndef MAGNUM_TARGET_GLES |
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eglBindAPI(EGL_OPENGL_API); |
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#else |
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eglBindAPI(EGL_OPENGL_ES_API); |
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#endif |
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/* Choose EGL config */ |
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static const EGLint attribs[] = { |
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EGL_RED_SIZE, 1, |
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EGL_GREEN_SIZE, 1, |
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EGL_BLUE_SIZE, 1, |
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EGL_DEPTH_SIZE, 1, |
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#ifndef MAGNUM_TARGET_GLES |
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EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT, |
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#else |
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EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
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#endif |
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EGL_NONE |
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}; |
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EGLint configCount; |
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if(!eglChooseConfig(display, attribs, &config, 1, &configCount)) { |
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Error() << "Cannot get EGL visual config"; |
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exit(1); |
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} |
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/* Get visual ID */ |
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EGLint visualId; |
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if(!eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &visualId)) { |
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Error() << "Cannot get native visual ID"; |
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exit(1); |
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} |
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return visualId; |
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} |
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void EglInterface::createContext(EGLNativeWindowType window) { |
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static const EGLint contextAttributes[] = { |
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#ifdef MAGNUM_TARGET_GLES |
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EGL_CONTEXT_CLIENT_VERSION, 2, |
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#endif |
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EGL_NONE |
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}; |
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context = eglCreateContext(display, config, EGL_NO_CONTEXT, contextAttributes); |
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if(!context) { |
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Error() << "Cannot create EGL context"; |
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exit(1); |
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} |
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surface = eglCreateWindowSurface(display, config, window, NULL); |
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if(!surface) { |
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Error() << "Cannot create window surface"; |
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exit(1); |
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} |
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/** @bug Fixme: On desktop OpenGL and Mesa EGL implementation OpenGL version is 1.0, which is wrong */ |
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} |
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}} |
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@ -0,0 +1,71 @@ |
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#ifndef Magnum_Contexts_EglInterface_h |
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#define Magnum_Contexts_EglInterface_h |
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/*
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Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz> |
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|
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This file is part of Magnum. |
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|
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Magnum is free software: you can redistribute it and/or modify |
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|
it under the terms of the GNU Lesser General Public License version 3 |
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|
only, as published by the Free Software Foundation. |
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|
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Magnum is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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|
GNU Lesser General Public License version 3 for more details. |
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*/ |
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/** @file
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* @brief Class Magnum::Contexts::EglInterface |
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*/ |
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#include "Magnum.h" |
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#ifndef SUPPORT_X11 |
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#define SUPPORT_X11 // OpenGL ES on BeagleBoard needs this (?)
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#endif |
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#include <EGL/egl.h> |
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#include "AbstractGlInterface.h" |
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namespace Magnum { namespace Contexts { |
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#ifndef DOXYGEN_GENERATING_OUTPUT |
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/* EGL returns visual ID as int, but Xorg expects long unsigned int */ |
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#ifdef __unix__ |
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typedef VisualID VisualId; |
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#else |
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typedef EGLInt VisualId; |
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#endif |
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#endif |
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/**
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@brief EGL interface |
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Used in XEglContext. |
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*/ |
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class EglInterface: public AbstractGlInterface<EGLNativeDisplayType, VisualId, EGLNativeWindowType> { |
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public: |
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~EglInterface(); |
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VisualId getVisualId(EGLNativeDisplayType nativeDisplay); |
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void createContext(EGLNativeWindowType nativeWindow); |
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inline void makeCurrent() { |
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eglMakeCurrent(display, surface, surface, context); |
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} |
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inline void swapBuffers() { |
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eglSwapBuffers(display, surface); |
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} |
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private: |
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EGLDisplay display; |
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EGLConfig config; |
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EGLSurface surface; |
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EGLContext context; |
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}; |
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}} |
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#endif |
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