2017-12-08 08:01:59 -07:00
|
|
|
/*
|
|
|
|
|
* Copyright © 2016 Red Hat, Inc.
|
|
|
|
|
*
|
|
|
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
|
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
|
|
|
* to deal in the Software without restriction, including without limitation
|
|
|
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
|
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
|
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
|
|
|
*
|
|
|
|
|
* The above copyright notice and this permission notice (including the next
|
|
|
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
|
|
|
* Software.
|
|
|
|
|
*
|
|
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
|
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
|
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
|
|
|
* DEALINGS IN THE SOFTWARE.
|
|
|
|
|
*
|
|
|
|
|
* Authors:
|
|
|
|
|
* Adam Jackson <ajax@redhat.com>
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef GLAMOR_EGL_H
|
|
|
|
|
#define GLAMOR_EGL_H
|
|
|
|
|
|
|
|
|
|
#define MESA_EGL_NO_X11_HEADERS
|
2019-12-11 23:05:17 -07:00
|
|
|
#define EGL_NO_X11
|
2017-12-08 08:01:59 -07:00
|
|
|
#include <epoxy/gl.h>
|
|
|
|
|
#include <epoxy/egl.h>
|
2019-07-27 01:57:06 -06:00
|
|
|
#include <glamor_egl_ext.h>
|
2017-12-08 08:01:59 -07:00
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Create an EGLDisplay from a native display type. This is a little quirky
|
|
|
|
|
* for a few reasons.
|
|
|
|
|
*
|
|
|
|
|
* 1: GetPlatformDisplayEXT and GetPlatformDisplay are the API you want to
|
|
|
|
|
* use, but have different function signatures in the third argument; this
|
|
|
|
|
* happens not to matter for us, at the moment, but it means epoxy won't alias
|
|
|
|
|
* them together.
|
|
|
|
|
*
|
|
|
|
|
* 2: epoxy 1.3 and earlier don't understand EGL client extensions, which
|
|
|
|
|
* means you can't call "eglGetPlatformDisplayEXT" directly, as the resolver
|
|
|
|
|
* will crash.
|
|
|
|
|
*
|
|
|
|
|
* 3: You can't tell whether you have EGL 1.5 at this point, because
|
|
|
|
|
* eglQueryString(EGL_VERSION) is a property of the display, which we don't
|
|
|
|
|
* have yet. So you have to query for extensions no matter what. Fortunately
|
|
|
|
|
* epoxy_has_egl_extension _does_ let you query for client extensions, so
|
|
|
|
|
* we don't have to write our own extension string parsing.
|
|
|
|
|
*
|
|
|
|
|
* 4. There is no EGL_KHR_platform_base to complement the EXT one, thus one
|
|
|
|
|
* needs to know EGL 1.5 is supported in order to use the eglGetPlatformDisplay
|
|
|
|
|
* function pointer.
|
|
|
|
|
* We can workaround this (circular dependency) by probing for the EGL 1.5
|
|
|
|
|
* platform extensions (EGL_KHR_platform_gbm and friends) yet it doesn't seem
|
|
|
|
|
* like mesa will be able to adverise these (even though it can do EGL 1.5).
|
|
|
|
|
*/
|
|
|
|
|
static inline EGLDisplay
|
|
|
|
|
glamor_egl_get_display(EGLint type, void *native)
|
|
|
|
|
{
|
|
|
|
|
/* In practise any EGL 1.5 implementation would support the EXT extension */
|
|
|
|
|
if (epoxy_has_egl_extension(NULL, "EGL_EXT_platform_base")) {
|
|
|
|
|
PFNEGLGETPLATFORMDISPLAYEXTPROC getPlatformDisplayEXT =
|
|
|
|
|
(void *) eglGetProcAddress("eglGetPlatformDisplayEXT");
|
|
|
|
|
if (getPlatformDisplayEXT)
|
|
|
|
|
return getPlatformDisplayEXT(type, native, NULL);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Welp, everything is awful. */
|
|
|
|
|
return eglGetDisplay(native);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif
|
