1 /*
2  * fg_state_android.c
3  *
4  * Android-specific freeglut state query methods.
5  *
6  * Copyright (c) 2012 Stephen J. Baker. All Rights Reserved.
7  * Written by John F. Fay, <fayjf@sourceforge.net>
8  * Copyright (C) 2012  Sylvain Beucler
9  *
10  * Permission is hereby granted, free of charge, to any person obtaining a
11  * copy of this software and associated documentation files (the "Software"),
12  * to deal in the Software without restriction, including without limitation
13  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
14  * and/or sell copies of the Software, and to permit persons to whom the
15  * Software is furnished to do so, subject to the following conditions:
16  *
17  * The above copyright notice and this permission notice shall be included
18  * in all copies or substantial portions of the Software.
19  *
20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
23  * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
24  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
25  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26  */
27 
28 #include <GL/freeglut.h>
29 #include <stdio.h>
30 #include <android/native_window.h>
31 #include "fg_internal.h"
32 #include "egl/fg_state_egl.h"
33 
fgPlatformGlutDeviceGet(GLenum eWhat)34 int fgPlatformGlutDeviceGet ( GLenum eWhat )
35 {
36     switch( eWhat )
37     {
38     case GLUT_HAS_KEYBOARD:
39         /* Android has a keyboard, though it may be virtual. */
40         return 1;
41 
42     case GLUT_HAS_MOUSE:
43         /* Android has a touchscreen; until we get proper touchscreen
44            support, consider it as a mouse. */
45         return 1 ;
46 
47     case GLUT_NUM_MOUSE_BUTTONS:
48         /* Android has a touchscreen; until we get proper touchscreen
49            support, consider it as a 1-button mouse. */
50         return 1;
51 
52     default:
53         fgWarning( "glutDeviceGet(): missing enum handle %d", eWhat );
54         break;
55     }
56 
57     /* And now -- the failure. */
58     return -1;
59 }
60 
fgPlatformGlutGet(GLenum eWhat)61 int fgPlatformGlutGet ( GLenum eWhat )
62 {
63   switch (eWhat) {
64   /* One full-screen window only */
65   case GLUT_WINDOW_X:
66   case GLUT_WINDOW_Y:
67   case GLUT_WINDOW_BORDER_WIDTH:
68   case GLUT_WINDOW_HEADER_HEIGHT:
69       return 0;
70 
71   case GLUT_WINDOW_WIDTH:
72   case GLUT_WINDOW_HEIGHT:
73     {
74       if ( fgStructure.CurrentWindow == NULL )
75 	return 0;
76       int32_t width = ANativeWindow_getWidth(fgStructure.CurrentWindow->Window.Handle);
77       int32_t height = ANativeWindow_getHeight(fgStructure.CurrentWindow->Window.Handle);
78       switch ( eWhat )
79 	{
80 	case GLUT_WINDOW_WIDTH:
81 	  return width;
82 	case GLUT_WINDOW_HEIGHT:
83 	  return height;
84 	}
85     }
86 
87   case GLUT_WINDOW_COLORMAP_SIZE:
88       /* 0 for RGBA/non-indexed mode */
89       /* Under Android and GLES more generally, no indexed-mode */
90       return 0;
91 
92   default:
93     return fghPlatformGlutGetEGL(eWhat);
94   }
95   return -1;
96 }
97