src/egl/main/egldisplay.h

   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 *
 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
 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
 235 _eglIsResourceLinked(_EGLResource *res)
 236 {
 237    return res->IsLinked;
 238 }
 239
 240
 241 #endif /* EGLDISPLAY_INCLUDED */