hybris/egl/platforms/wayland/eglplatform_wayland.cpp

   1 /****************************************************************************************
   2  **
   3  ** Copyright (C) 2013 Jolla Ltd.
   4  ** Contact: Carsten Munk <carsten.munk@jollamobile.com>
   5  ** All rights reserved.
   6  **
   7  ** This file is part of Wayland enablement for libhybris
   8  **
   9  ** You may use this file under the terms of the GNU Lesser General
  10  ** Public License version 2.1 as published by the Free Software Foundation
  11  ** and appearing in the file license.lgpl included in the packaging
  12  ** of this file.
  13  **
  14  ** This library is free software; you can redistribute it and/or
  15  ** modify it under the terms of the GNU Lesser General Public
  16  ** License version 2.1 as published by the Free Software Foundation
  17  ** and appearing in the file license.lgpl included in the packaging
  18  ** of this file.
  19  **
  20  ** This library is distributed in the hope that it will be useful,
  21  ** but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  23  ** Lesser General Public License for more details.
  24  **
  25  ****************************************************************************************/
  26
  27 #include <ws.h>
  28 #include <malloc.h>
  29 #include <assert.h>
  30 #include <fcntl.h>
  31 #include <stdio.h>
  32 #include <sys/stat.h>
  33 #include <unistd.h>
  34 #include <assert.h>
  35 extern "C" {
  36 #include <eglplatformcommon.h>
  37 };
  38
  39 extern "C" {
  40 #include <wayland-client.h>
  41 #include <wayland-egl.h>
  42 }
  43
  44 #include "wayland_window.h"
  45 #include "logging.h"
  46 #include "wayland-egl-priv.h"
  47
  48 static int inited = 0;
  49 static gralloc_module_t *gralloc = 0;
  50 static alloc_device_t *alloc = 0;
  51
  52 extern "C" int waylandws_IsValidDisplay(EGLNativeDisplayType display)
  53 {
  54         int err;
  55         if ( __sync_fetch_and_add(&inited,1)==0)
  56         {
  57                 hw_get_module(GRALLOC_HARDWARE_MODULE_ID, (const hw_module_t **) &gralloc);
  58                 err = gralloc_open((const hw_module_t *) gralloc, &alloc);
  59                 TRACE("++ %lu wayland: got gralloc %p err:%s", pthread_self(), gralloc, strerror(-err));
  60                 eglplatformcommon_init(gralloc, alloc);
  61         }
  62
  63         return 1;
  64 }
  65
  66 extern "C" EGLNativeWindowType waylandws_CreateWindow(EGLNativeWindowType win, EGLNativeDisplayType display)
  67 {
  68         WaylandNativeWindow *window = new WaylandNativeWindow((struct wl_egl_window *) win, (struct wl_display *) display, gralloc, alloc);
  69         window->common.incRef(&window->common);
  70         return (EGLNativeWindowType) static_cast<struct ANativeWindow *>(window);
  71 }
  72
  73 extern "C" void waylandws_DestroyWindow(EGLNativeWindowType win)
  74 {
  75         WaylandNativeWindow *window = static_cast<WaylandNativeWindow *>((struct ANativeWindow *)win);
  76         window->common.decRef(&window->common);
  77 }
  78
  79 extern "C" int waylandws_post(EGLNativeWindowType win, void *buffer)
  80 {
  81         struct wl_egl_window *eglwin = (struct wl_egl_window *) win;
  82
  83         return ((WaylandNativeWindow *) eglwin->nativewindow)->postBuffer((ANativeWindowBuffer *) buffer);
  84 }
  85
  86 extern "C" __eglMustCastToProperFunctionPointerType waylandws_eglGetProcAddress(const char *procname)
  87 {
  88         if (strcmp(procname, "eglHybrisWaylandPostBuffer") == 0)
  89         {
  90                 return (__eglMustCastToProperFunctionPointerType) waylandws_post;
  91         }
  92         else
  93         return eglplatformcommon_eglGetProcAddress(procname);
  94 }
  95
  96 extern "C" void waylandws_passthroughImageKHR(EGLContext *ctx, EGLenum *target, EGLClientBuffer *buffer, const EGLint **attrib_list)
  97 {
  98         eglplatformcommon_passthroughImageKHR(ctx, target, buffer, attrib_list);
  99 }
 100
 101 struct ws_module ws_module_info = {
 102         waylandws_IsValidDisplay,
 103         waylandws_CreateWindow,
 104         waylandws_DestroyWindow,
 105         waylandws_eglGetProcAddress,
 106         waylandws_passthroughImageKHR,
 107         eglplatformcommon_eglQueryString
 108 };
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