1 /************************************************************************** 2 * 3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com> 5 * Copyright 2010-2011 LunarG, Inc. 6 * All Rights Reserved. 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a 9 * copy of this software and associated documentation files (the 10 * "Software"), to deal in the Software without restriction, including 11 * without limitation the rights to use, copy, modify, merge, publish, 12 * distribute, sub license, and/or sell copies of the Software, and to 13 * permit persons to whom the Software is furnished to do so, subject to 14 * the following conditions: 15 * 16 * The above copyright notice and this permission notice (including the 17 * next paragraph) shall be included in all copies or substantial portions 18 * of the Software. 19 * 20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 23 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 26 * DEALINGS IN THE SOFTWARE. 27 * 28 **************************************************************************/ 29 30 31 #ifndef EGLDISPLAY_INCLUDED 32 #define EGLDISPLAY_INCLUDED 33 34 35 #include "egltypedefs.h" 36 #include "egldefines.h" 37 #include "eglmutex.h" 38 #include "eglarray.h" 39 40 41 enum _egl_platform_type { 42 _EGL_PLATFORM_WINDOWS, 43 _EGL_PLATFORM_X11, 44 _EGL_PLATFORM_WAYLAND, 45 _EGL_PLATFORM_DRM, 46 _EGL_PLATFORM_FBDEV, 47 _EGL_PLATFORM_NULL, 48 _EGL_PLATFORM_ANDROID, 49 50 _EGL_NUM_PLATFORMS, 51 _EGL_INVALID_PLATFORM = -1 52 }; 53 typedef enum _egl_platform_type _EGLPlatformType; 54 55 56 enum _egl_resource_type { 57 _EGL_RESOURCE_CONTEXT, 58 _EGL_RESOURCE_SURFACE, 59 _EGL_RESOURCE_IMAGE, 60 _EGL_RESOURCE_SYNC, 61 62 _EGL_NUM_RESOURCES 63 }; 64 /* this cannot and need not go into egltypedefs.h */ 65 typedef enum _egl_resource_type _EGLResourceType; 66 67 68 /** 69 * A resource of a display. 70 */ 71 struct _egl_resource 72 { 73 /* which display the resource belongs to */ 74 _EGLDisplay *Display; 75 EGLBoolean IsLinked; 76 EGLint RefCount; 77 78 /* used to link resources of the same type */ 79 _EGLResource *Next; 80 }; 81 82 83 /** 84 * Optional EGL extensions info. 85 */ 86 struct _egl_extensions 87 { 88 EGLBoolean MESA_screen_surface; 89 EGLBoolean MESA_copy_context; 90 EGLBoolean MESA_drm_display; 91 EGLBoolean MESA_drm_image; 92 93 EGLBoolean WL_bind_wayland_display; 94 95 EGLBoolean KHR_image_base; 96 EGLBoolean KHR_image_pixmap; 97 EGLBoolean KHR_vg_parent_image; 98 EGLBoolean KHR_gl_texture_2D_image; 99 EGLBoolean KHR_gl_texture_cubemap_image; 100 EGLBoolean KHR_gl_texture_3D_image; 101 EGLBoolean KHR_gl_renderbuffer_image; 102 103 EGLBoolean KHR_reusable_sync; 104 EGLBoolean KHR_fence_sync; 105 106 EGLBoolean KHR_surfaceless_context; 107 EGLBoolean KHR_create_context; 108 109 EGLBoolean NOK_swap_region; 110 EGLBoolean NOK_texture_from_pixmap; 111 112 EGLBoolean ANDROID_image_native_buffer; 113 114 EGLBoolean NV_post_sub_buffer; 115 116 EGLBoolean EXT_create_context_robustness; 117 }; 118 119 120 struct _egl_display 121 { 122 /* used to link displays */ 123 _EGLDisplay *Next; 124 125 _EGLMutex Mutex; 126 127 _EGLPlatformType Platform; /**< The type of the platform display */ 128 void *PlatformDisplay; /**< A pointer to the platform display */ 129 130 _EGLDriver *Driver; /**< Matched driver of the display */ 131 EGLBoolean Initialized; /**< True if the display is initialized */ 132 133 /* options that affect how the driver initializes the display */ 134 struct { 135 EGLBoolean TestOnly; /**< Driver should not set fields when true */ 136 EGLBoolean UseFallback; /**< Use fallback driver (sw or less features) */ 137 } Options; 138 139 /* these fields are set by the driver during init */ 140 void *DriverData; /**< Driver private data */ 141 EGLint VersionMajor; /**< EGL major version */ 142 EGLint VersionMinor; /**< EGL minor version */ 143 EGLint ClientAPIs; /**< Bitmask of APIs supported (EGL_xxx_BIT) */ 144 _EGLExtensions Extensions; /**< Extensions supported */ 145 146 /* these fields are derived from above */ 147 char VersionString[1000]; /**< EGL_VERSION */ 148 char ClientAPIsString[1000]; /**< EGL_CLIENT_APIS */ 149 char ExtensionsString[_EGL_MAX_EXTENSIONS_LEN]; /**< EGL_EXTENSIONS */ 150 151 _EGLArray *Screens; 152 _EGLArray *Configs; 153 154 /* lists of resources */ 155 _EGLResource *ResourceLists[_EGL_NUM_RESOURCES]; 156 }; 157 158 159 extern _EGLPlatformType 160 _eglGetNativePlatform(EGLNativeDisplayType nativeDisplay); 161 162 163 extern void 164 _eglFiniDisplay(void); 165 166 167 extern _EGLDisplay * 168 _eglFindDisplay(_EGLPlatformType plat, void *plat_dpy); 169 170 171 PUBLIC void 172 _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy); 173 174 175 PUBLIC void 176 _eglCleanupDisplay(_EGLDisplay *disp); 177 178 179 extern EGLBoolean 180 _eglCheckDisplayHandle(EGLDisplay dpy); 181 182 183 PUBLIC EGLBoolean 184 _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy); 185 186 187 /** 188 * Lookup a handle to find the linked display. 189 * Return NULL if the handle has no corresponding linked display. 190 */ 191 static INLINE _EGLDisplay * _eglLookupDisplay(EGLDisplay display)192 _eglLookupDisplay(EGLDisplay display) 193 { 194 _EGLDisplay *dpy = (_EGLDisplay *) display; 195 if (!_eglCheckDisplayHandle(display)) 196 dpy = NULL; 197 return dpy; 198 } 199 200 201 /** 202 * Return the handle of a linked display, or EGL_NO_DISPLAY. 203 */ 204 static INLINE EGLDisplay _eglGetDisplayHandle(_EGLDisplay * dpy)205 _eglGetDisplayHandle(_EGLDisplay *dpy) 206 { 207 return (EGLDisplay) ((dpy) ? dpy : EGL_NO_DISPLAY); 208 } 209 210 211 extern void 212 _eglInitResource(_EGLResource *res, EGLint size, _EGLDisplay *dpy); 213 214 215 PUBLIC void 216 _eglGetResource(_EGLResource *res); 217 218 219 PUBLIC EGLBoolean 220 _eglPutResource(_EGLResource *res); 221 222 223 extern void 224 _eglLinkResource(_EGLResource *res, _EGLResourceType type); 225 226 227 extern void 228 _eglUnlinkResource(_EGLResource *res, _EGLResourceType type); 229 230 231 /** 232 * Return true if the resource is linked. 233 */ 234 static INLINE EGLBoolean _eglIsResourceLinked(_EGLResource * res)235 _eglIsResourceLinked(_EGLResource *res) 236 { 237 return res->IsLinked; 238 } 239 240 241 #endif /* EGLDISPLAY_INCLUDED */ 242