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#ifndef EGLDISPLAY_INCLUDED
#define EGLDISPLAY_INCLUDED
#include "egltypedefs.h"
#include "egldefines.h"
#include "eglcontext.h"
#include "eglsurface.h"
/**
* Optional EGL extensions info.
*/
struct _egl_extensions
{
EGLBoolean MESA_screen_surface;
EGLBoolean MESA_copy_context;
char String[_EGL_MAX_EXTENSIONS_LEN];
};
struct _egl_display
{
/* used to link displays */
_EGLDisplay *Next;
EGLNativeDisplayType NativeDisplay;
const char *DriverName;
_EGLDriver *Driver;
void *DriverData; /* private to driver */
int APImajor, APIminor; /**< as returned by eglInitialize() */
char Version[1000]; /**< initialized from APImajor/minor, DriverName */
/** Bitmask of supported APIs (EGL_xx_BIT) set by the driver during init */
EGLint ClientAPIsMask;
char ClientAPIs[1000]; /**< updated by eglQueryString */
_EGLExtensions Extensions;
int LargestPbuffer;
EGLint NumScreens;
_EGLScreen **Screens; /* array [NumScreens] */
EGLint MaxConfigs;
EGLint NumConfigs;
_EGLConfig **Configs; /* array [NumConfigs] of ptr to _EGLConfig */
/* lists of linked contexts and surface */
_EGLContext *ContextList;
_EGLSurface *SurfaceList;
};
extern void
_eglFiniDisplay(void);
extern char *
_eglSplitDisplayString(const char *dpyString, const char **args);
extern _EGLDisplay *
_eglNewDisplay(NativeDisplayType displayName);
extern EGLDisplay
_eglLinkDisplay(_EGLDisplay *dpy);
extern void
_eglUnlinkDisplay(_EGLDisplay *dpy);
extern _EGLDisplay *
_eglFindDisplay(NativeDisplayType nativeDisplay);
extern void
_eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy);
extern void
_eglCleanupDisplay(_EGLDisplay *disp);
extern EGLContext
_eglLinkContext(_EGLContext *ctx, _EGLDisplay *dpy);
extern void
_eglUnlinkContext(_EGLContext *ctx);
extern EGLSurface
_eglLinkSurface(_EGLSurface *surf, _EGLDisplay *dpy);
extern void
_eglUnlinkSurface(_EGLSurface *surf);
#ifndef _EGL_SKIP_HANDLE_CHECK
extern EGLBoolean
_eglCheckDisplayHandle(EGLDisplay dpy);
extern EGLBoolean
_eglCheckContextHandle(EGLContext ctx, _EGLDisplay *dpy);
extern EGLBoolean
_eglCheckSurfaceHandle(EGLSurface surf, _EGLDisplay *dpy);
#else /* !_EGL_SKIP_HANDLE_CHECK */
/* Only do a quick check. This is NOT standard compliant. */
static INLINE EGLBoolean
_eglCheckDisplayHandle(EGLDisplay dpy)
{
return ((_EGLDisplay *) dpy != NULL);
}
static INLINE EGLBoolean
_eglCheckContextHandle(EGLContext ctx, _EGLDisplay *dpy)
{
_EGLContext *c = (_EGLContext *) ctx;
return (dpy && c && c->Display == dpy);
}
static INLINE EGLBoolean
_eglCheckSurfaceHandle(EGLSurface surf, _EGLDisplay *dpy)
{
_EGLSurface *s = (_EGLSurface *) surf;
return (dpy && s && s->Display == dpy);
}
#endif /* _EGL_SKIP_HANDLE_CHECK */
/**
* Lookup a handle to find the linked display.
* Return NULL if the handle has no corresponding linked display.
*/
static INLINE _EGLDisplay *
_eglLookupDisplay(EGLDisplay display)
{
_EGLDisplay *dpy = (_EGLDisplay *) display;
if (!_eglCheckDisplayHandle(display))
dpy = NULL;
return dpy;
}
/**
* Return the handle of a linked display, or EGL_NO_DISPLAY.
*/
static INLINE EGLDisplay
_eglGetDisplayHandle(_EGLDisplay *dpy)
{
return (EGLDisplay) ((dpy) ? dpy : EGL_NO_DISPLAY);
}
/**
* Return true if the display is linked.
*/
static INLINE EGLBoolean
_eglIsDisplayLinked(_EGLDisplay *dpy)
{
return (EGLBoolean) (_eglGetDisplayHandle(dpy) != EGL_NO_DISPLAY);
}
/**
* Lookup a handle to find the linked context.
* Return NULL if the handle has no corresponding linked context.
*/
static INLINE _EGLContext *
_eglLookupContext(EGLContext context, _EGLDisplay *dpy)
{
_EGLContext *ctx = (_EGLContext *) context;
if (!_eglCheckContextHandle(context, dpy))
ctx = NULL;
return ctx;
}
/**
* Return the handle of a linked context, or EGL_NO_CONTEXT.
*/
static INLINE EGLContext
_eglGetContextHandle(_EGLContext *ctx)
{
return (EGLContext) ((ctx && ctx->Display) ? ctx : EGL_NO_CONTEXT);
}
/**
* Return true if the context is linked to a display.
*/
static INLINE EGLBoolean
_eglIsContextLinked(_EGLContext *ctx)
{
return (EGLBoolean) (_eglGetContextHandle(ctx) != EGL_NO_CONTEXT);
}
/**
* Lookup a handle to find the linked surface.
* Return NULL if the handle has no corresponding linked surface.
*/
static INLINE _EGLSurface *
_eglLookupSurface(EGLSurface surface, _EGLDisplay *dpy)
{
_EGLSurface *surf = (_EGLSurface *) surface;
if (!_eglCheckSurfaceHandle(surf, dpy))
surf = NULL;
return surf;
}
/**
* Return the handle of a linked surface, or EGL_NO_SURFACE.
*/
static INLINE EGLSurface
_eglGetSurfaceHandle(_EGLSurface *surf)
{
return (EGLSurface) ((surf && surf->Display) ? surf : EGL_NO_SURFACE);
}
/**
* Return true if the surface is linked to a display.
*/
static INLINE EGLBoolean
_eglIsSurfaceLinked(_EGLSurface *surf)
{
return (EGLBoolean) (_eglGetSurfaceHandle(surf) != EGL_NO_SURFACE);
}
/**
* Cast an unsigned int to a pointer.
*/
static INLINE void *
_eglUIntToPointer(unsigned int v)
{
return (void *) ((uintptr_t) v);
}
/**
* Cast a pointer to an unsigned int. The pointer must be one that is
* returned by _eglUIntToPointer.
*/
static INLINE unsigned int
_eglPointerToUInt(const void *p)
{
return (unsigned int) ((uintptr_t) p);
}
#endif /* EGLDISPLAY_INCLUDED */
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