1 /* 2 * Cogl 3 * 4 * A Low Level GPU Graphics and Utilities API 5 * 6 * Copyright (C) 2011 Intel Corporation. 7 * 8 * Permission is hereby granted, free of charge, to any person 9 * obtaining a copy of this software and associated documentation 10 * files (the "Software"), to deal in the Software without 11 * restriction, including without limitation the rights to use, copy, 12 * modify, merge, publish, distribute, sublicense, and/or sell copies 13 * of the Software, and to permit persons to whom the Software is 14 * furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice shall be 17 * included in all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 23 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 24 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 25 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 26 * SOFTWARE. 27 * 28 * 29 */ 30 31 #ifndef __COGL_RENDERER_GLX_PRIVATE_H 32 #define __COGL_RENDERER_GLX_PRIVATE_H 33 34 #include <gmodule.h> 35 #include "cogl-object-private.h" 36 #include "cogl-xlib-renderer-private.h" 37 38 typedef struct _CoglGLXRenderer 39 { 40 int glx_major; 41 int glx_minor; 42 43 int glx_error_base; 44 int glx_event_base; 45 46 /* Vblank stuff */ 47 int dri_fd; 48 49 /* enumeration with relatioship between OML_sync_control 50 * UST (unadjusted-system-time) and the system clock */ 51 enum 52 { 53 COGL_GLX_UST_IS_UNKNOWN, 54 COGL_GLX_UST_IS_GETTIMEOFDAY, 55 COGL_GLX_UST_IS_MONOTONIC_TIME, 56 COGL_GLX_UST_IS_OTHER 57 } ust_type; 58 59 /* GModule pointing to libGL which we use to get glX functions out of */ 60 GModule *libgl_module; 61 62 CoglClosure *flush_notifications_idle; 63 64 /* Copy of the winsys features that are based purely on the 65 * information we can get without using a GL context. We want to 66 * determine this before we have a context so that we can use the 67 * function pointers from the extensions earlier. This is necessary 68 * to use the glXCreateContextAttribs function. */ 69 unsigned long base_winsys_features 70 [COGL_FLAGS_N_LONGS_FOR_SIZE (COGL_WINSYS_FEATURE_N_FEATURES)]; 71 72 /* Function pointers for core GLX functionality. We can't just link 73 against these directly because we need to conditionally load 74 libGL when we are using GLX so that it won't conflict with a GLES 75 library if we are using EGL + GLES. These are just the functions 76 that we want to use before calling glXGetProcAddress */ 77 Bool 78 (* glXQueryExtension) (Display *dpy, int *errorb, int *event); 79 const char * 80 (* glXQueryExtensionsString) (Display *dpy, int screen); 81 Bool 82 (* glXQueryVersion) (Display *dpy, int *maj, int *min); 83 void * 84 (* glXGetProcAddress) (const GLubyte *procName); 85 86 int 87 (* glXQueryDrawable) (Display *dpy, GLXDrawable drawable, 88 int attribute, unsigned int *value); 89 90 /* Function pointers for GLX specific extensions */ 91 #define COGL_WINSYS_FEATURE_BEGIN(a, b, c, d, e, f, g) 92 93 #define COGL_WINSYS_FEATURE_FUNCTION(ret, name, args) \ 94 ret (APIENTRY * name) args; 95 96 #define COGL_WINSYS_FEATURE_END() 97 98 #include "winsys/cogl-winsys-glx-feature-functions.h" 99 100 #undef COGL_WINSYS_FEATURE_BEGIN 101 #undef COGL_WINSYS_FEATURE_FUNCTION 102 #undef COGL_WINSYS_FEATURE_END 103 } CoglGLXRenderer; 104 105 #endif /* __COGL_RENDERER_GLX_PRIVATE_H */ 106