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    /* options that affect how the driver initializes the display */
  94    struct {
  95       EGLBoolean TestOnly;    /**< Driver should not set fields when true */
  96       EGLBoolean UseFallback; /**< Use fallback driver (sw or less features) */
  97    } Options;
  98
  99    /* these fields are set by the driver during init */
 100    void *DriverData;          /**< Driver private data */
 101    EGLint VersionMajor;       /**< EGL major version */
 102    EGLint VersionMinor;       /**< EGL minor version */
 103    EGLint ClientAPIs;         /**< Bitmask of APIs supported (EGL_xxx_BIT) */
 104    _EGLExtensions Extensions; /**< Extensions supported */
 105
 106    /* these fields are derived from above */
 107    char VersionString[1000];                       /**< EGL_VERSION */
 108    char ClientAPIsString[1000];                    /**< EGL_CLIENT_APIS */
 109    char ExtensionsString[_EGL_MAX_EXTENSIONS_LEN]; /**< EGL_EXTENSIONS */
 110
 111    _EGLArray *Screens;
 112    _EGLArray *Configs;
 113
 114    /* lists of resources */
 115    _EGLResource *ResourceLists[_EGL_NUM_RESOURCES];
 116 };
 117
 118
 119 extern _EGLPlatformType
 120 _eglGetNativePlatform(void);
 121
 122
 123 extern void
 124 _eglFiniDisplay(void);
 125
 126
 127 extern _EGLDisplay *
 128 _eglFindDisplay(_EGLPlatformType plat, void *plat_dpy);
 129
 130
 131 PUBLIC void
 132 _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy);
 133
 134
 135 PUBLIC void
 136 _eglCleanupDisplay(_EGLDisplay *disp);
 137
 138
 139 extern EGLBoolean
 140 _eglCheckDisplayHandle(EGLDisplay dpy);
 141
 142
 143 PUBLIC EGLBoolean
 144 _eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy);
 145
 146
 147 /**
 148  * Lookup a handle to find the linked display.
 149  * Return NULL if the handle has no corresponding linked display.
 150  */
 151 static INLINE _EGLDisplay *
 152 _eglLookupDisplay(EGLDisplay display)
 153 {
 154    _EGLDisplay *dpy = (_EGLDisplay *) display;
 155    if (!_eglCheckDisplayHandle(display))
 156       dpy = NULL;
 157    return dpy;
 158 }
 159
 160
 161 /**
 162  * Return the handle of a linked display, or EGL_NO_DISPLAY.
 163  */
 164 static INLINE EGLDisplay
 165 _eglGetDisplayHandle(_EGLDisplay *dpy)
 166 {
 167    return (EGLDisplay) ((dpy) ? dpy : EGL_NO_DISPLAY);
 168 }
 169
 170
 171 extern void
 172 _eglInitResource(_EGLResource *res, EGLint size, _EGLDisplay *dpy);
 173
 174
 175 PUBLIC void
 176 _eglGetResource(_EGLResource *res);
 177
 178
 179 PUBLIC EGLBoolean
 180 _eglPutResource(_EGLResource *res);
 181
 182
 183 extern void
 184 _eglLinkResource(_EGLResource *res, _EGLResourceType type);
 185
 186
 187 extern void
 188 _eglUnlinkResource(_EGLResource *res, _EGLResourceType type);
 189
 190
 191 /**
 192  * Return true if the resource is linked.
 193  */
 194 static INLINE EGLBoolean
 195 _eglIsResourceLinked(_EGLResource *res)
 196 {
 197    return res->IsLinked;
 198 }
 199
 200
 201 #endif /* EGLDISPLAY_INCLUDED */