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glx_context.h (7542B)


      1 //========================================================================
      2 // GLFW 3.3 GLX - www.glfw.org
      3 //------------------------------------------------------------------------
      4 // Copyright (c) 2002-2006 Marcus Geelnard
      5 // Copyright (c) 2006-2016 Camilla Löwy <elmindreda@glfw.org>
      6 //
      7 // This software is provided 'as-is', without any express or implied
      8 // warranty. In no event will the authors be held liable for any damages
      9 // arising from the use of this software.
     10 //
     11 // Permission is granted to anyone to use this software for any purpose,
     12 // including commercial applications, and to alter it and redistribute it
     13 // freely, subject to the following restrictions:
     14 //
     15 // 1. The origin of this software must not be misrepresented; you must not
     16 //    claim that you wrote the original software. If you use this software
     17 //    in a product, an acknowledgment in the product documentation would
     18 //    be appreciated but is not required.
     19 //
     20 // 2. Altered source versions must be plainly marked as such, and must not
     21 //    be misrepresented as being the original software.
     22 //
     23 // 3. This notice may not be removed or altered from any source
     24 //    distribution.
     25 //
     26 //========================================================================
     27 
     28 #define GLX_VENDOR 1
     29 #define GLX_RGBA_BIT 0x00000001
     30 #define GLX_WINDOW_BIT 0x00000001
     31 #define GLX_DRAWABLE_TYPE 0x8010
     32 #define GLX_RENDER_TYPE	0x8011
     33 #define GLX_RGBA_TYPE 0x8014
     34 #define GLX_DOUBLEBUFFER 5
     35 #define GLX_STEREO 6
     36 #define GLX_AUX_BUFFERS	7
     37 #define GLX_RED_SIZE 8
     38 #define GLX_GREEN_SIZE 9
     39 #define GLX_BLUE_SIZE 10
     40 #define GLX_ALPHA_SIZE 11
     41 #define GLX_DEPTH_SIZE 12
     42 #define GLX_STENCIL_SIZE 13
     43 #define GLX_ACCUM_RED_SIZE 14
     44 #define GLX_ACCUM_GREEN_SIZE 15
     45 #define GLX_ACCUM_BLUE_SIZE	16
     46 #define GLX_ACCUM_ALPHA_SIZE 17
     47 #define GLX_SAMPLES 0x186a1
     48 #define GLX_VISUAL_ID 0x800b
     49 
     50 #define GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB 0x20b2
     51 #define GLX_CONTEXT_DEBUG_BIT_ARB 0x00000001
     52 #define GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x00000002
     53 #define GLX_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001
     54 #define GLX_CONTEXT_PROFILE_MASK_ARB 0x9126
     55 #define GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x00000002
     56 #define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091
     57 #define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092
     58 #define GLX_CONTEXT_FLAGS_ARB 0x2094
     59 #define GLX_CONTEXT_ES2_PROFILE_BIT_EXT 0x00000004
     60 #define GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB 0x00000004
     61 #define GLX_LOSE_CONTEXT_ON_RESET_ARB 0x8252
     62 #define GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB 0x8256
     63 #define GLX_NO_RESET_NOTIFICATION_ARB 0x8261
     64 #define GLX_CONTEXT_RELEASE_BEHAVIOR_ARB 0x2097
     65 #define GLX_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB 0
     66 #define GLX_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB 0x2098
     67 #define GLX_CONTEXT_OPENGL_NO_ERROR_ARB 0x31b3
     68 
     69 typedef XID GLXWindow;
     70 typedef XID GLXDrawable;
     71 typedef struct __GLXFBConfig* GLXFBConfig;
     72 typedef struct __GLXcontext* GLXContext;
     73 typedef void (*__GLXextproc)(void);
     74 
     75 typedef int (*PFNGLXGETFBCONFIGATTRIBPROC)(Display*,GLXFBConfig,int,int*);
     76 typedef const char* (*PFNGLXGETCLIENTSTRINGPROC)(Display*,int);
     77 typedef Bool (*PFNGLXQUERYEXTENSIONPROC)(Display*,int*,int*);
     78 typedef Bool (*PFNGLXQUERYVERSIONPROC)(Display*,int*,int*);
     79 typedef void (*PFNGLXDESTROYCONTEXTPROC)(Display*,GLXContext);
     80 typedef Bool (*PFNGLXMAKECURRENTPROC)(Display*,GLXDrawable,GLXContext);
     81 typedef void (*PFNGLXSWAPBUFFERSPROC)(Display*,GLXDrawable);
     82 typedef const char* (*PFNGLXQUERYEXTENSIONSSTRINGPROC)(Display*,int);
     83 typedef GLXFBConfig* (*PFNGLXGETFBCONFIGSPROC)(Display*,int,int*);
     84 typedef GLXContext (*PFNGLXCREATENEWCONTEXTPROC)(Display*,GLXFBConfig,int,GLXContext,Bool);
     85 typedef __GLXextproc (* PFNGLXGETPROCADDRESSPROC)(const GLubyte *procName);
     86 typedef void (*PFNGLXSWAPINTERVALEXTPROC)(Display*,GLXDrawable,int);
     87 typedef XVisualInfo* (*PFNGLXGETVISUALFROMFBCONFIGPROC)(Display*,GLXFBConfig);
     88 typedef GLXWindow (*PFNGLXCREATEWINDOWPROC)(Display*,GLXFBConfig,Window,const int*);
     89 typedef void (*PFNGLXDESTROYWINDOWPROC)(Display*,GLXWindow);
     90 
     91 typedef int (*PFNGLXSWAPINTERVALMESAPROC)(int);
     92 typedef int (*PFNGLXSWAPINTERVALSGIPROC)(int);
     93 typedef GLXContext (*PFNGLXCREATECONTEXTATTRIBSARBPROC)(Display*,GLXFBConfig,GLXContext,Bool,const int*);
     94 
     95 // libGL.so function pointer typedefs
     96 #define glXGetFBConfigs _glfw.glx.GetFBConfigs
     97 #define glXGetFBConfigAttrib _glfw.glx.GetFBConfigAttrib
     98 #define glXGetClientString _glfw.glx.GetClientString
     99 #define glXQueryExtension _glfw.glx.QueryExtension
    100 #define glXQueryVersion _glfw.glx.QueryVersion
    101 #define glXDestroyContext _glfw.glx.DestroyContext
    102 #define glXMakeCurrent _glfw.glx.MakeCurrent
    103 #define glXSwapBuffers _glfw.glx.SwapBuffers
    104 #define glXQueryExtensionsString _glfw.glx.QueryExtensionsString
    105 #define glXCreateNewContext _glfw.glx.CreateNewContext
    106 #define glXGetVisualFromFBConfig _glfw.glx.GetVisualFromFBConfig
    107 #define glXCreateWindow _glfw.glx.CreateWindow
    108 #define glXDestroyWindow _glfw.glx.DestroyWindow
    109 
    110 #define _GLFW_PLATFORM_CONTEXT_STATE            _GLFWcontextGLX glx
    111 #define _GLFW_PLATFORM_LIBRARY_CONTEXT_STATE    _GLFWlibraryGLX glx
    112 
    113 
    114 // GLX-specific per-context data
    115 //
    116 typedef struct _GLFWcontextGLX
    117 {
    118     GLXContext      handle;
    119     GLXWindow       window;
    120 
    121 } _GLFWcontextGLX;
    122 
    123 // GLX-specific global data
    124 //
    125 typedef struct _GLFWlibraryGLX
    126 {
    127     int             major, minor;
    128     int             eventBase;
    129     int             errorBase;
    130 
    131     // dlopen handle for libGL.so.1
    132     void*           handle;
    133 
    134     // GLX 1.3 functions
    135     PFNGLXGETFBCONFIGSPROC              GetFBConfigs;
    136     PFNGLXGETFBCONFIGATTRIBPROC         GetFBConfigAttrib;
    137     PFNGLXGETCLIENTSTRINGPROC           GetClientString;
    138     PFNGLXQUERYEXTENSIONPROC            QueryExtension;
    139     PFNGLXQUERYVERSIONPROC              QueryVersion;
    140     PFNGLXDESTROYCONTEXTPROC            DestroyContext;
    141     PFNGLXMAKECURRENTPROC               MakeCurrent;
    142     PFNGLXSWAPBUFFERSPROC               SwapBuffers;
    143     PFNGLXQUERYEXTENSIONSSTRINGPROC     QueryExtensionsString;
    144     PFNGLXCREATENEWCONTEXTPROC          CreateNewContext;
    145     PFNGLXGETVISUALFROMFBCONFIGPROC     GetVisualFromFBConfig;
    146     PFNGLXCREATEWINDOWPROC              CreateWindow;
    147     PFNGLXDESTROYWINDOWPROC             DestroyWindow;
    148 
    149     // GLX 1.4 and extension functions
    150     PFNGLXGETPROCADDRESSPROC            GetProcAddress;
    151     PFNGLXGETPROCADDRESSPROC            GetProcAddressARB;
    152     PFNGLXSWAPINTERVALSGIPROC           SwapIntervalSGI;
    153     PFNGLXSWAPINTERVALEXTPROC           SwapIntervalEXT;
    154     PFNGLXSWAPINTERVALMESAPROC          SwapIntervalMESA;
    155     PFNGLXCREATECONTEXTATTRIBSARBPROC   CreateContextAttribsARB;
    156     GLFWbool        SGI_swap_control;
    157     GLFWbool        EXT_swap_control;
    158     GLFWbool        MESA_swap_control;
    159     GLFWbool        ARB_multisample;
    160     GLFWbool        ARB_framebuffer_sRGB;
    161     GLFWbool        EXT_framebuffer_sRGB;
    162     GLFWbool        ARB_create_context;
    163     GLFWbool        ARB_create_context_profile;
    164     GLFWbool        ARB_create_context_robustness;
    165     GLFWbool        EXT_create_context_es2_profile;
    166     GLFWbool        ARB_create_context_no_error;
    167     GLFWbool        ARB_context_flush_control;
    168 
    169 } _GLFWlibraryGLX;
    170 
    171 
    172 GLFWbool _glfwInitGLX(void);
    173 void _glfwTerminateGLX(void);
    174 GLFWbool _glfwCreateContextGLX(_GLFWwindow* window,
    175                                const _GLFWctxconfig* ctxconfig,
    176                                const _GLFWfbconfig* fbconfig);
    177 void _glfwDestroyContextGLX(_GLFWwindow* window);
    178 GLFWbool _glfwChooseVisualGLX(const _GLFWctxconfig* ctxconfig,
    179                               const _GLFWfbconfig* fbconfig,
    180                               Visual** visual, int* depth);
    181