src/egl/main/egldisplay.h

   1 #ifndef EGLDISPLAY_INCLUDED
   2 #define EGLDISPLAY_INCLUDED
   3
   4
   5 #include "egltypedefs.h"
   6 #include "egldefines.h"
   7 #include "eglmutex.h"
   8 #include "eglarray.h"
   9
  10
  11 enum _egl_platform_type {
  12    _EGL_PLATFORM_WINDOWS,
  13    _EGL_PLATFORM_X11,
  14    _EGL_PLATFORM_DRM,
  15    _EGL_PLATFORM_FBDEV,
  16
  17    _EGL_NUM_PLATFORMS,
  18    _EGL_INVALID_PLATFORM = -1
  19 };
  20 typedef enum _egl_platform_type _EGLPlatformType;
  21
  22
  23 enum _egl_resource_type {
  24    _EGL_RESOURCE_CONTEXT,
  25    _EGL_RESOURCE_SURFACE,
  26    _EGL_RESOURCE_IMAGE,
  27    _EGL_RESOURCE_SYNC,
  28
  29    _EGL_NUM_RESOURCES
  30 };
  31 /* this cannot and need not go into egltypedefs.h */
  32 typedef enum _egl_resource_type _EGLResourceType;
  33
  34
  35 /**
  36  * A resource of a display.
  37  */
  38 struct _egl_resource
  39 {
  40    /* which display the resource belongs to */
  41    _EGLDisplay *Display;
  42    EGLBoolean IsLinked;
  43    EGLint RefCount;
  44
  45    /* used to link resources of the same type */
  46    _EGLResource *Next;
  47 };
  48
  49
  50 /**
  51  * Optional EGL extensions info.
  52  */
  53 struct _egl_extensions
  54 {
  55    EGLBoolean MESA_screen_surface;
  56    EGLBoolean MESA_copy_context;
  57    EGLBoolean MESA_drm_display;
  58    EGLBoolean MESA_drm_image;
  59
  60    EGLBoolean KHR_image_base;
  61    EGLBoolean KHR_image_pixmap;
  62    EGLBoolean KHR_vg_parent_image;
  63    EGLBoolean KHR_gl_texture_2D_image;
  64    EGLBoolean KHR_gl_texture_cubemap_image;
  65    EGLBoolean KHR_gl_texture_3D_image;
  66    EGLBoolean KHR_gl_renderbuffer_image;
  67
  68    EGLBoolean KHR_reusable_sync;
  69    EGLBoolean KHR_fence_sync;
  70
  71    EGLBoolean KHR_surfaceless_gles1;
  72    EGLBoolean KHR_surfaceless_gles2;
  73    EGLBoolean KHR_surfaceless_opengl;
  74
  75    EGLBoolean NOK_swap_region;
  76    EGLBoolean NOK_texture_from_pixmap;
  77 };
  78
  79
  80 struct _egl_display
  81 {
  82    /* used to link displays */
  83    _EGLDisplay *Next;
  84
  85    _EGLMutex Mutex;
  86
  87    _EGLPlatformType Platform; /**< The type of the platform display */
  88    void *PlatformDisplay;     /**< A pointer to the platform display */
  89
  90    _EGLDriver *Driver;        /**< Matched driver of the display */
  91    EGLBoolean Initialized;    /**< True if the display is initialized */
  92
  93    /* these fields are set by the driver during init */
  94    void *DriverData;          /**< Driver private data */
  95    EGLint VersionMajor;       /**< EGL major version */
  96    EGLint VersionMinor;       /**< EGL minor version */
  97    EGLint ClientAPIs;         /**< Bitmask of APIs supported (EGL_xxx_BIT) */
  98    _EGLExtensions Extensions; /**< Extensions supported */
  99
 100    /* these fields are derived from above */
 101    char VersionString[1000];                       /**< EGL_VERSION */
 102    char ClientAPIsString[1000];                    /**< EGL_CLIENT_APIS */
 103    char ExtensionsString[_EGL_MAX_EXTENSIONS_LEN]; /**< EGL_EXTENSIONS */
 104
 105    _EGLArray *Screens;
 106    _EGLArray *Configs;
 107
 108    /* lists of resources */
 109    _EGLResource *ResourceLists[_EGL_NUM_RESOURCES];
 110 };
 111
 112
 113 extern _EGLPlatformType
 114 _eglGetNativePlatform(void);
 115
 116
 117 extern void
 118 _eglFiniDisplay(void);
 119
 120
 121 extern _EGLDisplay *
 122 _eglFindDisplay(_EGLPlatformType plat, void *plat_dpy);
 123
 124
 125 PUBLIC void
 126 _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy);
 127
 128
 129 PUBLIC void
 130 _eglCleanupDisplay(_EGLDisplay *disp);
 131
 132
 133 extern EGLBoolean
 134 _eglCheckDisplayHandle(EGLDisplay dpy);
 135
 136
 137 PUBLIC EGLBoolean
 138 _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy);
 139
 140
 141 /**
 142  * Lookup a handle to find the linked display.
 143  * Return NULL if the handle has no corresponding linked display.
 144  */
 145 static INLINE _EGLDisplay *
 146 _eglLookupDisplay(EGLDisplay display)
 147 {
 148    _EGLDisplay *dpy = (_EGLDisplay *) display;
 149    if (!_eglCheckDisplayHandle(display))
 150       dpy = NULL;
 151    return dpy;
 152 }
 153
 154
 155 /**
 156  * Return the handle of a linked display, or EGL_NO_DISPLAY.
 157  */
 158 static INLINE EGLDisplay
 159 _eglGetDisplayHandle(_EGLDisplay *dpy)
 160 {
 161    return (EGLDisplay) ((dpy) ? dpy : EGL_NO_DISPLAY);
 162 }
 163
 164
 165 extern void
 166 _eglInitResource(_EGLResource *res, EGLint size, _EGLDisplay *dpy);
 167
 168
 169 PUBLIC void
 170 _eglGetResource(_EGLResource *res);
 171
 172
 173 PUBLIC EGLBoolean
 174 _eglPutResource(_EGLResource *res);
 175
 176
 177 extern void
 178 _eglLinkResource(_EGLResource *res, _EGLResourceType type);
 179
 180
 181 extern void
 182 _eglUnlinkResource(_EGLResource *res, _EGLResourceType type);
 183
 184
 185 /**
 186  * Return true if the resource is linked.
 187  */
 188 static INLINE EGLBoolean
 189 _eglIsResourceLinked(_EGLResource *res)
 190 {
 191    return res->IsLinked;
 192 }
 193
 194
 195 #endif /* EGLDISPLAY_INCLUDED */