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gl: Export query for EGLContext and EGLDisplay from device

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Similar to glx, add query for the EGLContext and EGLDisplay to egl-based
cairo devices.
This commit is contained in:
Henry Song 2013-03-07 16:33:27 +00:00 • committed by Chris Wilson
parent a8f1b456db
commit 524e6fd3e8
2 changed files with 39 additions and 0 deletions
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33
src/cairo-egl-context.c
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@ -276,3 +276,36 @@ cairo_gl_surface_create_for_egl (cairo_device_t *device,
return &surface->base.base;
}
static bool is_egl_device (cairo_device_t *device)
{
return (device->backend != NULL &&
device->backend->type == CAIRO_DEVICE_TYPE_GL);
}
static cairo_egl_context_t *to_egl_context (cairo_device_t *device)
{
return (cairo_egl_context_t *) device;
}
EGLDisplay
cairo_egl_device_get_display (cairo_device_t *device)
{
if (! is_egl_device (device)) {
_cairo_error_throw (CAIRO_STATUS_DEVICE_TYPE_MISMATCH);
return EGL_NO_DISPLAY;
}
return to_egl_context (device)->display;
}
cairo_public EGLContext
cairo_egl_device_get_context (cairo_device_t *device)
{
if (! is_egl_device (device)) {
_cairo_error_throw (CAIRO_STATUS_DEVICE_TYPE_MISMATCH);
return EGL_NO_CONTEXT;
}
return to_egl_context (device)->context;
}

6
src/cairo-gl.h
View file

@ -138,6 +138,12 @@ cairo_gl_surface_create_for_egl (cairo_device_t *device,
int width,
int height);
cairo_public EGLDisplay
cairo_egl_device_get_display (cairo_device_t *device);
cairo_public EGLSurface
cairo_egl_device_get_context (cairo_device_t *device);
#endif
CAIRO_END_DECLS