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https://github.com/glfw/glfw.git
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311 lines
10 KiB
C
311 lines
10 KiB
C
//========================================================================
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// GLFW - An OpenGL framework
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// Platform: X11/GLX
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// API version: 3.0
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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 <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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// 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,
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GLXFBConfigSGIX config,
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int attribute,
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int* value);
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typedef GLXFBConfigSGIX* (*PFNGLXCHOOSEFBCONFIGSGIXPROC)(Display* dpy,
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int screen,
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int* attrib_list,
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int* nelements);
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typedef GLXContext (*PFNGLXCREATECONTEXTWITHCONFIGSGIXPROC)(Display* dpy,
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GLXFBConfigSGIX config,
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int render_type,
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GLXContext share_list,
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Bool direct);
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typedef XVisualInfo* (*PFNGLXGETVISUALFROMFBCONFIGSGIXPROC)(Display* dpy,
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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,
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GLXFBConfig config,
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GLXContext share_context,
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Bool direct,
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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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#define _GLFW_PLATFORM_WINDOW_STATE _GLFWwindowX11 X11
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#define _GLFW_PLATFORM_LIBRARY_STATE _GLFWlibraryX11 X11
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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 _GLFWwindowX11 {
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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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int mouseMoved, cursorPosX, cursorPosY;
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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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} _GLFWwindowX11;
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//------------------------------------------------------------------------
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// Platform-specific ibrary global data
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//------------------------------------------------------------------------
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typedef struct {
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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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// 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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// 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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} _GLFWlibraryX11;
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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(int screen);
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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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