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https://github.com/glfw/glfw.git
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Initial import of 2.7 Lite.
This commit is contained in:
Camilla Berglund
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//========================================================================
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// GLFW - An OpenGL framework
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// Platform: X11/GLX
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// API version: 2.7
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// WWW: http://www.glfw.org/
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//------------------------------------------------------------------------
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// Copyright (c) 2002-2006 Marcus Geelnard
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// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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#ifndef _platform_h_
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#define _platform_h_
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// This is the X11 version of GLFW
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#define _GLFW_X11
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// Include files
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#include <sys/time.h>
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#include <unistd.h>
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#include <signal.h>
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#include <X11/Xlib.h>
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#include <X11/keysym.h>
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#include <X11/Xatom.h>
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#include <GL/glx.h>
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#include "../../include/GL/glfw.h"
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#include "x11_config.h"
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// We need declarations for GLX version 1.3 or above even if the server doesn't
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// support version 1.3
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#ifndef GLX_VERSION_1_3
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#error "GLX header version 1.3 or above is required"
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#endif
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#if defined( _GLFW_HAS_XF86VIDMODE ) && defined( _GLFW_HAS_XRANDR )
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#error "Xf86VidMode and RandR extensions cannot both be enabled"
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#endif
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// With XFree86, we can use the XF86VidMode extension
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#if defined( _GLFW_HAS_XF86VIDMODE )
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#include <X11/extensions/xf86vmode.h>
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#endif
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#if defined( _GLFW_HAS_XRANDR )
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#include <X11/extensions/Xrandr.h>
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#endif
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// Do we have support for dlopen/dlsym?
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#if defined( _GLFW_HAS_DLOPEN )
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#include <dlfcn.h>
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#endif
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// We support two different ways for getting the number of processors in
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// the system: sysconf (POSIX) and sysctl (BSD?)
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#if defined( _GLFW_HAS_SYSCONF )
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// Use a single constant for querying number of online processors using
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// the sysconf function (e.g. SGI defines _SC_NPROC_ONLN instead of
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// _SC_NPROCESSORS_ONLN)
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#ifndef _SC_NPROCESSORS_ONLN
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#ifdef _SC_NPROC_ONLN
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#define _SC_NPROCESSORS_ONLN _SC_NPROC_ONLN
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#else
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#error POSIX constant _SC_NPROCESSORS_ONLN not defined!
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#endif
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#endif
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// Macro for querying the number of processors
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#define _glfw_numprocessors(n) n=(int)sysconf(_SC_NPROCESSORS_ONLN)
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#elif defined( _GLFW_HAS_SYSCTL )
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#include <sys/types.h>
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#include <sys/sysctl.h>
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// Macro for querying the number of processors
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#define _glfw_numprocessors(n) { \
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int mib[2], ncpu; \
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size_t len = 1; \
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mib[0] = CTL_HW; \
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mib[1] = HW_NCPU; \
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n = 1; \
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if( sysctl( mib, 2, &ncpu, &len, NULL, 0 ) != -1 ) \
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{ \
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if( len > 0 ) \
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{ \
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n = ncpu; \
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} \
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} \
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}
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#else
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// If neither sysconf nor sysctl is supported, assume single processor
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// system
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#define _glfw_numprocessors(n) n=1
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#endif
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// Pointer length integer
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// One day, this will most likely move into glfw.h
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typedef intptr_t GLFWintptr;
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#ifndef GLX_SGI_swap_control
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// Function signature for GLX_SGI_swap_control
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typedef int ( * PFNGLXSWAPINTERVALSGIPROC) (int interval);
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#endif /*GLX_SGI_swap_control*/
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#ifndef GLX_SGIX_fbconfig
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/* Type definitions for GLX_SGIX_fbconfig */
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typedef XID GLXFBConfigIDSGIX;
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typedef struct __GLXFBConfigRec *GLXFBConfigSGIX;
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/* Function signatures for GLX_SGIX_fbconfig */
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typedef int ( * PFNGLXGETFBCONFIGATTRIBSGIXPROC) (Display *dpy, GLXFBConfigSGIX config, int attribute, int *value);
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typedef GLXFBConfigSGIX * ( * PFNGLXCHOOSEFBCONFIGSGIXPROC) (Display *dpy, int screen, int *attrib_list, int *nelements);
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typedef GLXContext ( * PFNGLXCREATECONTEXTWITHCONFIGSGIXPROC) (Display *dpy, GLXFBConfigSGIX config, int render_type, GLXContext share_list, Bool direct);
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typedef XVisualInfo * ( * PFNGLXGETVISUALFROMFBCONFIGSGIXPROC) (Display *dpy, GLXFBConfigSGIX config);
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/* Tokens for GLX_SGIX_fbconfig */
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#define GLX_WINDOW_BIT_SGIX 0x00000001
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#define GLX_PIXMAP_BIT_SGIX 0x00000002
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#define GLX_RGBA_BIT_SGIX 0x00000001
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#define GLX_COLOR_INDEX_BIT_SGIX 0x00000002
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#define GLX_DRAWABLE_TYPE_SGIX 0x8010
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#define GLX_RENDER_TYPE_SGIX 0x8011
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#define GLX_X_RENDERABLE_SGIX 0x8012
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#define GLX_FBCONFIG_ID_SGIX 0x8013
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#define GLX_RGBA_TYPE_SGIX 0x8014
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#define GLX_COLOR_INDEX_TYPE_SGIX 0x8015
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#define GLX_SCREEN_EXT 0x800C
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#endif /*GLX_SGIX_fbconfig*/
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#ifndef GLX_ARB_create_context
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/* Tokens for glXCreateContextAttribsARB attributes */
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#define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091
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#define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092
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#define GLX_CONTEXT_FLAGS_ARB 0x2094
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/* Bits for WGL_CONTEXT_FLAGS_ARB */
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#define GLX_CONTEXT_DEBUG_BIT_ARB 0x0001
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#define GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002
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/* Prototype for glXCreateContextAttribs */
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typedef GLXContext (*PFNGLXCREATECONTEXTATTRIBSARBPROC)( Display *display, GLXFBConfig config, GLXContext share_context, Bool direct, const int *attrib_list);
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#endif /*GLX_ARB_create_context*/
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#ifndef GLX_ARB_create_context_profile
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/* Tokens for glXCreateContextAttribsARB attributes */
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#define GLX_CONTEXT_PROFILE_MASK_ARB 0x9126
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/* BIts for GLX_CONTEXT_PROFILE_MASK_ARB */
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#define GLX_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001
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#define GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x00000002
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#endif /*GLX_ARB_create_context_profile*/
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#ifndef GL_VERSION_3_0
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typedef const GLubyte * (APIENTRY *PFNGLGETSTRINGIPROC) (GLenum, GLuint);
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#endif /*GL_VERSION_3_0*/
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//========================================================================
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// Global variables (GLFW internals)
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//========================================================================
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//------------------------------------------------------------------------
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// Window structure
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//------------------------------------------------------------------------
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typedef struct _GLFWwin_struct _GLFWwin;
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struct _GLFWwin_struct {
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// ========= PLATFORM INDEPENDENT MANDATORY PART =========================
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// User callback functions
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GLFWwindowsizefun windowSizeCallback;
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GLFWwindowclosefun windowCloseCallback;
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GLFWwindowrefreshfun windowRefreshCallback;
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GLFWmousebuttonfun mouseButtonCallback;
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GLFWmouseposfun mousePosCallback;
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GLFWmousewheelfun mouseWheelCallback;
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GLFWkeyfun keyCallback;
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GLFWcharfun charCallback;
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// User selected window settings
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int fullscreen; // Fullscreen flag
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int mouseLock; // Mouse-lock flag
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int autoPollEvents; // Auto polling flag
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int sysKeysDisabled; // System keys disabled flag
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int windowNoResize; // Resize- and maximize gadgets disabled flag
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int refreshRate; // Vertical monitor refresh rate
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// Window status & parameters
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int opened; // Flag telling if window is opened or not
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int active; // Application active flag
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int iconified; // Window iconified flag
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int width, height; // Window width and heigth
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int accelerated; // GL_TRUE if window is HW accelerated
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// Framebuffer attributes
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int redBits;
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int greenBits;
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int blueBits;
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int alphaBits;
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int depthBits;
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int stencilBits;
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int accumRedBits;
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int accumGreenBits;
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int accumBlueBits;
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int accumAlphaBits;
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int auxBuffers;
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int stereo;
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int samples;
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// OpenGL extensions and context attributes
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int has_GL_SGIS_generate_mipmap;
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int has_GL_ARB_texture_non_power_of_two;
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int glMajor, glMinor, glRevision;
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int glForward, glDebug, glProfile;
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PFNGLGETSTRINGIPROC GetStringi;
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// ========= PLATFORM SPECIFIC PART ======================================
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// Platform specific window resources
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Colormap colormap; // Window colormap
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Window window; // Window
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Window root; // Root window for screen
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int screen; // Screen ID
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XVisualInfo *visual; // Visual for selected GLXFBConfig
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GLXFBConfigID fbconfigID; // ID of selected GLXFBConfig
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GLXContext context; // OpenGL rendering context
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Atom wmDeleteWindow; // WM_DELETE_WINDOW atom
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Atom wmPing; // _NET_WM_PING atom
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Atom wmState; // _NET_WM_STATE atom
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Atom wmStateFullscreen; // _NET_WM_STATE_FULLSCREEN atom
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Atom wmActiveWindow; // _NET_ACTIVE_WINDOW atom
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Cursor cursor; // Invisible cursor for hidden cursor
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// GLX extensions
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PFNGLXSWAPINTERVALSGIPROC SwapIntervalSGI;
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PFNGLXGETFBCONFIGATTRIBSGIXPROC GetFBConfigAttribSGIX;
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PFNGLXCHOOSEFBCONFIGSGIXPROC ChooseFBConfigSGIX;
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PFNGLXCREATECONTEXTWITHCONFIGSGIXPROC CreateContextWithConfigSGIX;
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PFNGLXGETVISUALFROMFBCONFIGSGIXPROC GetVisualFromFBConfigSGIX;
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PFNGLXCREATECONTEXTATTRIBSARBPROC CreateContextAttribsARB;
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GLboolean has_GLX_SGIX_fbconfig;
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GLboolean has_GLX_SGI_swap_control;
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GLboolean has_GLX_ARB_multisample;
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GLboolean has_GLX_ARB_create_context;
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GLboolean has_GLX_ARB_create_context_profile;
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// Various platform specific internal variables
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GLboolean hasEWMH; // True if window manager supports EWMH
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GLboolean overrideRedirect; // True if window is OverrideRedirect
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GLboolean keyboardGrabbed; // True if keyboard is currently grabbed
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GLboolean pointerGrabbed; // True if pointer is currently grabbed
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GLboolean pointerHidden; // True if pointer is currently hidden
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// Screensaver data
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struct {
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int changed;
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int timeout;
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int interval;
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int blanking;
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int exposure;
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} Saver;
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// Fullscreen data
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struct {
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int modeChanged;
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#if defined( _GLFW_HAS_XF86VIDMODE )
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XF86VidModeModeInfo oldMode;
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#endif
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#if defined( _GLFW_HAS_XRANDR )
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SizeID oldSizeID;
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int oldWidth;
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int oldHeight;
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Rotation oldRotation;
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#endif
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} FS;
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};
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GLFWGLOBAL _GLFWwin _glfwWin;
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//------------------------------------------------------------------------
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// User input status (most of this should go in _GLFWwin)
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//------------------------------------------------------------------------
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GLFWGLOBAL struct {
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// ========= PLATFORM INDEPENDENT MANDATORY PART =========================
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// Mouse status
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int MousePosX, MousePosY;
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int WheelPos;
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char MouseButton[ GLFW_MOUSE_BUTTON_LAST+1 ];
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// Keyboard status
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char Key[ GLFW_KEY_LAST+1 ];
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int LastChar;
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// User selected settings
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int StickyKeys;
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int StickyMouseButtons;
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int KeyRepeat;
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// ========= PLATFORM SPECIFIC PART ======================================
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// Platform specific internal variables
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int MouseMoved, CursorPosX, CursorPosY;
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} _glfwInput;
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//------------------------------------------------------------------------
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// Library global data
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//------------------------------------------------------------------------
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GLFWGLOBAL struct {
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// ========= PLATFORM INDEPENDENT MANDATORY PART =========================
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// Window opening hints
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_GLFWhints hints;
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// ========= PLATFORM SPECIFIC PART ======================================
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Display *display;
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// Server-side GLX version
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int glxMajor, glxMinor;
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struct {
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int available;
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int eventBase;
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int errorBase;
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} XF86VidMode;
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struct {
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int available;
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int eventBase;
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int errorBase;
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} XRandR;
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// Timer data
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struct {
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double resolution;
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long long t0;
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} Timer;
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#if defined(_GLFW_DLOPEN_LIBGL)
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struct {
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void *libGL; // dlopen handle for libGL.so
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} Libs;
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#endif
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} _glfwLibrary;
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//------------------------------------------------------------------------
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// Joystick information & state
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//------------------------------------------------------------------------
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GLFWGLOBAL struct {
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int Present;
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int fd;
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int NumAxes;
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int NumButtons;
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float *Axis;
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unsigned char *Button;
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} _glfwJoy[ GLFW_JOYSTICK_LAST + 1 ];
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//========================================================================
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// Prototypes for platform specific internal functions
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//========================================================================
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// Time
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void _glfwInitTimer( void );
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// Fullscreen support
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int _glfwGetClosestVideoMode( int screen, int *width, int *height, int *rate );
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void _glfwSetVideoModeMODE( int screen, int mode, int rate );
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void _glfwSetVideoMode( int screen, int *width, int *height, int *rate );
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void _glfwRestoreVideoMode( void );
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// Joystick input
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void _glfwInitJoysticks( void );
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void _glfwTerminateJoysticks( void );
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// Unicode support
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long _glfwKeySym2Unicode( KeySym keysym );
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#endif // _platform_h_
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