mesa/src/egl/main/eglglvnd.c

103 lines
3.3 KiB
C

/*
* (C) Copyright 2016, NVIDIA CORPORATION.
* All Rights Reserved.
*
* 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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* IBM AND/OR ITS SUPPLIERS 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:
* Kyle Brenneman <kbrenneman@nvidia.com>
*/
#include <string.h>
#include <assert.h>
#include <glvnd/libeglabi.h>
#include "eglcurrent.h"
#include "egldispatchstubs.h"
#include "eglglobals.h"
static const __EGLapiExports *__eglGLVNDApiExports = NULL;
static const char * EGLAPIENTRY
__eglGLVNDQueryString(EGLDisplay dpy, EGLenum name)
{
// For client extensions, return the list of non-platform extensions. The
// platform extensions are returned by __eglGLVNDGetVendorString.
if (dpy == EGL_NO_DISPLAY && name == EGL_EXTENSIONS)
return _eglGlobal.ClientOnlyExtensionString;
// For everything else, forward to the normal eglQueryString function.
return eglQueryString(dpy, name);
}
static const char *
__eglGLVNDGetVendorString(int name)
{
if (name == __EGL_VENDOR_STRING_PLATFORM_EXTENSIONS)
return _eglGlobal.PlatformExtensionString;
return NULL;
}
static EGLDisplay
__eglGLVNDGetPlatformDisplay(EGLenum platform, void *native_display,
const EGLAttrib *attrib_list)
{
if (platform == EGL_NONE) {
assert(native_display == (void *) EGL_DEFAULT_DISPLAY);
assert(attrib_list == NULL);
return eglGetDisplay((EGLNativeDisplayType) native_display);
} else {
return eglGetPlatformDisplay(platform, native_display, attrib_list);
}
}
static void *
__eglGLVNDGetProcAddress(const char *procName)
{
if (strcmp(procName, "eglQueryString") == 0)
return (void *) __eglGLVNDQueryString;
return (void *) eglGetProcAddress(procName);
}
EGLAPI EGLBoolean
__egl_Main(uint32_t version, const __EGLapiExports *exports,
__EGLvendorInfo *vendor, __EGLapiImports *imports)
{
if (EGL_VENDOR_ABI_GET_MAJOR_VERSION(version) !=
EGL_VENDOR_ABI_MAJOR_VERSION)
return EGL_FALSE;
__eglGLVNDApiExports = exports;
__eglInitDispatchStubs(exports);
imports->getPlatformDisplay = __eglGLVNDGetPlatformDisplay;
imports->getSupportsAPI = _eglIsApiValid;
imports->getVendorString = __eglGLVNDGetVendorString;
imports->getProcAddress = __eglGLVNDGetProcAddress;
imports->getDispatchAddress = __eglDispatchFindDispatchFunction;
imports->setDispatchIndex = __eglSetDispatchIndex;
return EGL_TRUE;
}