glfw/src/internal.h

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//========================================================================
// GLFW - An OpenGL framework
// Platform: Any
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// API version: 3.0
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// WWW: http://www.glfw.org/
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#ifndef _internal_h_
#define _internal_h_
//========================================================================
// GLFWGLOBAL is a macro that places all global variables in the init.c
// module (all other modules reference global variables as 'extern')
//========================================================================
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#if defined(_init_c_)
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#define GLFWGLOBAL
#else
#define GLFWGLOBAL extern
#endif
//========================================================================
// Input handling definitions
//========================================================================
// Internal key and button state/action definitions
#define GLFW_STICK 2
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//------------------------------------------------------------------------
// Platform specific definitions goes in platform.h (which also includes
// glfw.h)
//------------------------------------------------------------------------
#include "platform.h"
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//------------------------------------------------------------------------
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// Window hints, set by glfwOpenWindowHint and consumed by glfwOpenWindow
// A bucket of semi-random stuff lumped together for historical reasons
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// This is used only by the platform independent code and only to store
// parameters passed to us by glfwOpenWindowHint
//------------------------------------------------------------------------
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typedef struct _GLFWhints
{
int redBits;
int greenBits;
int blueBits;
int alphaBits;
int depthBits;
int stencilBits;
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int refreshRate;
int accumRedBits;
int accumGreenBits;
int accumBlueBits;
int accumAlphaBits;
int auxBuffers;
int stereo;
int windowNoResize;
int samples;
int glMajor;
int glMinor;
int glForward;
int glDebug;
int glProfile;
} _GLFWhints;
//------------------------------------------------------------------------
// Parameters relating to the creation of the context and window but not
// directly related to the properties of the framebuffer
// This is used to pass window and context creation parameters from the
// platform independent code to the platform specific code
//------------------------------------------------------------------------
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typedef struct _GLFWwndconfig
{
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int mode;
int refreshRate;
int windowNoResize;
int glMajor;
int glMinor;
int glForward;
int glDebug;
int glProfile;
} _GLFWwndconfig;
//------------------------------------------------------------------------
// Framebuffer configuration descriptor, i.e. buffers and their sizes
// Also a platform specific ID used to map back to the actual backend APIs
// This is used to pass framebuffer parameters from the platform independent
// code to the platform specific code, and also to enumerate and select
// available framebuffer configurations
//------------------------------------------------------------------------
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typedef struct _GLFWfbconfig
{
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int redBits;
int greenBits;
int blueBits;
int alphaBits;
int depthBits;
int stencilBits;
int accumRedBits;
int accumGreenBits;
int accumBlueBits;
int accumAlphaBits;
int auxBuffers;
int stereo;
int samples;
GLFWintptr platformID;
} _GLFWfbconfig;
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//------------------------------------------------------------------------
// Window structure
//------------------------------------------------------------------------
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typedef struct _GLFWwindow
{
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// User callback functions
GLFWwindowsizefun windowSizeCallback;
GLFWwindowclosefun windowCloseCallback;
GLFWwindowrefreshfun windowRefreshCallback;
GLFWmousebuttonfun mouseButtonCallback;
GLFWmouseposfun mousePosCallback;
GLFWmousewheelfun mouseWheelCallback;
GLFWkeyfun keyCallback;
GLFWcharfun charCallback;
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// Window settings and state
GLboolean active; // GL_TRUE if this window is active
GLboolean iconified; // GL_TRUE if this window is iconified
int width, height;
int mode; // GLFW_WINDOW or GLFW_FULLSCREEN
GLboolean sysKeysDisabled; // system keys disabled flag
GLboolean windowNoResize; // resize- and maximize gadgets disabled flag
int refreshRate; // monitor refresh rate
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// Window input state
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GLboolean stickyKeys;
GLboolean stickyMouseButtons;
GLboolean keyRepeat;
int mousePosX, mousePosY;
int wheelPos;
char mouseButton[GLFW_MOUSE_BUTTON_LAST + 1];
char key[GLFW_KEY_LAST + 1];
int lastChar;
// Framebuffer attributes
int redBits;
int greenBits;
int blueBits;
int alphaBits;
int depthBits;
int stencilBits;
int accumRedBits;
int accumGreenBits;
int accumBlueBits;
int accumAlphaBits;
int auxBuffers;
GLboolean stereo;
int samples;
// OpenGL extensions and context attributes
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GLboolean accelerated; // GL_TRUE if OpenGL context is "accelerated"
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int glMajor, glMinor, glRevision;
int glForward, glDebug, glProfile;
PFNGLGETSTRINGIPROC GetStringi;
_GLFW_PLATFORM_WINDOW_STATE;
_GLFW_PLATFORM_CONTEXT_STATE;
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} _GLFWwindow;
//------------------------------------------------------------------------
// Library global data
//------------------------------------------------------------------------
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typedef struct _GLFWlibrary
{
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_GLFWhints hints;
_GLFWwindow* window;
_GLFWwindow* currentWindow;
_GLFWwindow* cursorLockWindow;
_GLFW_PLATFORM_LIBRARY_STATE;
} _GLFWlibrary;
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//========================================================================
// System independent global variables (GLFW internals)
//========================================================================
// Flag indicating if GLFW has been initialized
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#if defined(_init_c_)
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GLboolean _glfwInitialized = GL_FALSE;
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#else
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GLFWGLOBAL GLboolean _glfwInitialized;
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#endif
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GLFWGLOBAL _GLFWlibrary _glfwLibrary;
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//========================================================================
// Prototypes for platform specific implementation functions
//========================================================================
// Init/terminate
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int _glfwPlatformInit(void);
int _glfwPlatformTerminate(void);
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// Enable/Disable
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void _glfwPlatformEnableSystemKeys(_GLFWwindow* window);
void _glfwPlatformDisableSystemKeys(_GLFWwindow* window);
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// Fullscreen
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int _glfwPlatformGetVideoModes(GLFWvidmode* list, int maxcount);
void _glfwPlatformGetDesktopMode(GLFWvidmode* mode);
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// Joystick
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int _glfwPlatformGetJoystickParam(int joy, int param);
int _glfwPlatformGetJoystickPos(int joy, float* pos, int numaxes);
int _glfwPlatformGetJoystickButtons(int joy, unsigned char* buttons, int numbuttons);
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// Time
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double _glfwPlatformGetTime(void);
void _glfwPlatformSetTime(double time);
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// Window management
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int _glfwPlatformOpenWindow(_GLFWwindow* window, int width, int height, const _GLFWwndconfig* wndconfig, const _GLFWfbconfig* fbconfig);
int _glfwPlatformMakeWindowCurrent(_GLFWwindow* window);
void _glfwPlatformCloseWindow(_GLFWwindow* window);
void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title);
void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height);
void _glfwPlatformSetWindowPos(_GLFWwindow* window, int x, int y);
void _glfwPlatformIconifyWindow(_GLFWwindow* window);
void _glfwPlatformRestoreWindow(_GLFWwindow* window);
void _glfwPlatformHideMouseCursor(_GLFWwindow* window);
void _glfwPlatformShowMouseCursor(_GLFWwindow* window);
void _glfwPlatformSetMouseCursorPos(_GLFWwindow* window, int x, int y);
// Event management
void _glfwPlatformPollEvents(void);
void _glfwPlatformWaitEvents(void);
// OpenGL context management
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void _glfwPlatformSwapBuffers(void);
void _glfwPlatformSwapInterval(int interval);
void _glfwPlatformRefreshWindowParams(void);
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int _glfwPlatformExtensionSupported(const char* extension);
void* _glfwPlatformGetProcAddress(const char* procname);
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//========================================================================
// Prototypes for platform independent internal functions
//========================================================================
// Window management (window.c)
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void _glfwClearWindowHints(void);
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// Input handling (window.c)
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void _glfwClearInput(_GLFWwindow* window);
void _glfwInputDeactivation(_GLFWwindow* window);
void _glfwInputKey(_GLFWwindow* window, int key, int action);
void _glfwInputChar(_GLFWwindow* window, int character);
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void _glfwInputMouseClick(_GLFWwindow* window, int button, int action);
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// OpenGL extensions (glext.c)
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void _glfwParseGLVersion(int* major, int* minor, int* rev);
int _glfwStringInExtensionString(const char* string, const GLubyte* extensions);
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// Framebuffer configs
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const _GLFWfbconfig* _glfwChooseFBConfig(const _GLFWfbconfig* desired,
const _GLFWfbconfig* alternatives,
unsigned int count);
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#endif // _internal_h_