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#ifndef EGLCONTEXT_INCLUDED
#define EGLCONTEXT_INCLUDED
#include "egltypedefs.h"
/**
* "Base" class for device driver contexts.
*/
struct _egl_context
{
/* Managed by EGLDisplay for linking */
_EGLDisplay *Display;
_EGLContext *Next;
/* The bound status of the context */
_EGLThreadInfo *Binding;
_EGLSurface *DrawSurface;
_EGLSurface *ReadSurface;
_EGLConfig *Config;
EGLint ClientAPI; /**< EGL_OPENGL_ES_API, EGL_OPENGL_API, EGL_OPENVG_API */
EGLint ClientVersion; /**< 1 = OpenGLES 1.x, 2 = OpenGLES 2.x */
/* The real render buffer when a window surface is bound */
EGLint WindowRenderBuffer;
};
PUBLIC EGLBoolean
_eglInitContext(_EGLDriver *drv, _EGLContext *ctx,
_EGLConfig *config, const EGLint *attrib_list);
extern _EGLContext *
_eglCreateContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, _EGLContext *share_list, const EGLint *attrib_list);
extern EGLBoolean
_eglDestroyContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx);
extern EGLBoolean
_eglQueryContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx, EGLint attribute, EGLint *value);
PUBLIC EGLBoolean
_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *draw, _EGLSurface *read, _EGLContext *ctx);
extern EGLBoolean
_eglCopyContextMESA(_EGLDriver *drv, EGLDisplay dpy, EGLContext source, EGLContext dest, EGLint mask);
/**
* Return true if the context is bound to a thread.
*/
static INLINE EGLBoolean
_eglIsContextBound(_EGLContext *ctx)
{
return (ctx->Binding != NULL);
}
extern EGLContext
_eglLinkContext(_EGLContext *ctx, _EGLDisplay *dpy);
extern void
_eglUnlinkContext(_EGLContext *ctx);
#ifndef _EGL_SKIP_HANDLE_CHECK
extern EGLBoolean
_eglCheckContextHandle(EGLContext ctx, _EGLDisplay *dpy);
#else /* !_EGL_SKIP_HANDLE_CHECK */
static INLINE EGLBoolean
_eglCheckContextHandle(EGLContext ctx, _EGLDisplay *dpy)
{
_EGLContext *c = (_EGLContext *) ctx;
return (dpy && c && c->Display == dpy);
}
#endif /* _EGL_SKIP_HANDLE_CHECK */
/**
* 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);
}
#endif /* EGLCONTEXT_INCLUDED */
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