src/egl/wayland/wayland-egl/wayland-egl.c

   1 /*
   2  * Copyright © 2011 Kristian Høgsberg
   3  * Copyright © 2011 Benjamin Franzke
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19  * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  20  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  21  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23  * DEALINGS IN THE SOFTWARE.
  24  *
  25  * Authors:
  26  *    Kristian Høgsberg <krh@bitplanet.net>
  27  *    Benjamin Franzke <benjaminfranzke@googlemail.com>
  28  */
  29
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 #include <wayland-client.h>
  34 #include "wayland-egl.h"
  35 #include "wayland-egl-priv.h"
  36
  37 WL_EGL_EXPORT void
  38 wl_egl_window_resize(struct wl_egl_window *egl_window,
  39                      int width, int height,
  40                      int dx, int dy)
  41 {
  42         if (width <= 0 || height <= 0)
  43                 return;
  44
  45         egl_window->width  = width;
  46         egl_window->height = height;
  47         egl_window->dx     = dx;
  48         egl_window->dy     = dy;
  49
  50         if (egl_window->resize_callback)
  51                 egl_window->resize_callback(egl_window, egl_window->private);
  52 }
  53
  54 WL_EGL_EXPORT struct wl_egl_window *
  55 wl_egl_window_create(struct wl_surface *surface,
  56                      int width, int height)
  57 {
  58         struct wl_egl_window _INIT_ = { .version = WL_EGL_WINDOW_VERSION };
  59         struct wl_egl_window *egl_window;
  60
  61         if (width <= 0 || height <= 0)
  62                 return NULL;
  63
  64         egl_window = malloc(sizeof *egl_window);
  65         if (!egl_window)
  66                 return NULL;
  67
  68         memcpy(egl_window, &_INIT_, sizeof *egl_window);
  69
  70         egl_window->surface = surface;
  71         egl_window->private = NULL;
  72         egl_window->resize_callback = NULL;
  73         egl_window->destroy_window_callback = NULL;
  74         wl_egl_window_resize(egl_window, width, height, 0, 0);
  75         egl_window->attached_width  = 0;
  76         egl_window->attached_height = 0;
  77
  78         return egl_window;
  79 }
  80
  81 WL_EGL_EXPORT void
  82 wl_egl_window_destroy(struct wl_egl_window *egl_window)
  83 {
  84         if (egl_window->destroy_window_callback)
  85                 egl_window->destroy_window_callback(egl_window->private);
  86         free(egl_window);
  87 }
  88
  89 WL_EGL_EXPORT void
  90 wl_egl_window_get_attached_size(struct wl_egl_window *egl_window,
  91                                 int *width, int *height)
  92 {
  93         if (width)
  94                 *width = egl_window->attached_width;
  95         if (height)
  96                 *height = egl_window->attached_height;
  97 }