src/glut/fbdev/internal.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.5
   4  * Copyright (C) 1995-2006  Brian Paul
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public
  17  * License along with this library; if not, write to the Free
  18  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 /*
  22  * Library for glut using mesa fbdev driver
  23  *
  24  * Written by Sean D'Epagnier (c) 2006
  25  */
  26
  27 #include <sys/time.h>
  28 #include <linux/fb.h>
  29 #include <GL/glfbdev.h>
  30
  31 #define MULTIHEAD   /* enable multihead hacks,
  32                        it allows the program to continue drawing
  33                        without reading input when a second fbdev
  34                        has keyboard focus it can cause
  35                        screen corruption that requires C-l to fix */
  36 #define HAVE_GPM
  37
  38 #define MAX_VSYNC 200
  39
  40 /* this causes these symbols to not be exported */
  41 #pragma GCC visibility push(hidden)
  42
  43
  44 /* --------- fbdev ------------ */
  45 extern int Redisplay;
  46 extern int Visible;
  47 extern int VisibleSwitch;
  48 extern int Active;
  49 extern int VisiblePoll;
  50 extern int Swapping, VTSwitch;
  51
  52 void TestVisible(void);
  53 int ParseFBModes(int, int, int, int, int, int);
  54 void SetVideoMode(void);
  55 void CreateBuffer(void);
  56 void CreateVisual(void);
  57
  58 extern int FrameBufferFD;
  59 extern unsigned char *FrameBuffer;
  60 extern unsigned char *BackBuffer;
  61 extern int DisplayMode;
  62
  63 extern char exiterror[256];
  64
  65 extern struct fb_fix_screeninfo FixedInfo;
  66 extern struct fb_var_screeninfo VarInfo;
  67
  68 extern GLFBDevContextPtr Context;
  69 extern GLFBDevBufferPtr Buffer;
  70 extern GLFBDevVisualPtr Visual;
  71
  72 /* --- colormap --- */
  73 #define REVERSECMAPSIZELOG 3
  74 #define REVERSECMAPSIZE (1<<REVERSECMAPSIZELOG)
  75
  76 extern unsigned short RedColorMap[256],
  77                       GreenColorMap[256],
  78                       BlueColorMap[256];
  79 extern unsigned char ReverseColorMap[REVERSECMAPSIZE]
  80                                     [REVERSECMAPSIZE]
  81                                     [REVERSECMAPSIZE];
  82
  83 void LoadColorMap(void);
  84 void RestoreColorMap(void);
  85
  86 /* --- mouse --- */
  87 extern int MouseX, MouseY;
  88 extern int CurrentCursor;
  89 extern int MouseVisible;
  90 extern int LastMouseTime;
  91 extern int NumMouseButtons;
  92
  93 void InitializeCursor(void);
  94 void EraseCursor(void);
  95 void DrawCursor(void);
  96 void SwapCursor(void);
  97
  98 /* --- menus --- */
  99 struct GlutMenu {
 100     int NumItems;
 101     int x, y;
 102     int width;
 103     int selected;
 104     struct {
 105         int value;
 106         int submenu;
 107         char *name;
 108     } *Items;
 109     void (*func)(int);
 110 };
 111
 112 extern struct GlutMenu *Menus;
 113
 114 extern int ActiveMenu;
 115 extern int CurrentMenu;
 116
 117 void InitializeMenus(void);
 118 void FreeMenus(void);
 119 void DrawMenus(void);
 120
 121 int TryMenu(int, int);
 122 void OpenMenu(void);
 123 void CloseMenu(void);
 124
 125 /* --- state --- */
 126 extern int AccumSize, DepthSize, StencilSize, NumSamples;
 127 extern struct timeval StartTime;
 128 extern int KeyboardModifiers;
 129
 130 /* --- input --- */
 131 #ifdef HAVE_GPM
 132 extern int GpmMouse;
 133 #endif
 134
 135 extern int CurrentVT;
 136 extern int ConsoleFD;
 137
 138 extern double MouseSpeed;
 139
 140 extern int KeyRepeatMode;
 141
 142 void InitializeVT(int);
 143 void RestoreVT(void);
 144 void CloseMouse(void);
 145 void InitializeMouse(void);
 146
 147 void ReceiveInput(void);
 148
 149 /* --- callback --- */
 150 extern void (*DisplayFunc)(void);
 151 extern void (*ReshapeFunc)(int width, int height);
 152 extern void (*KeyboardFunc)(unsigned char key, int x, int y);
 153 extern void (*KeyboardUpFunc)(unsigned char key, int x, int y);
 154 extern void (*MouseFunc)(int key, int state, int x, int y);
 155 extern void (*MotionFunc)(int x, int y);
 156 extern void (*PassiveMotionFunc)(int x, int y);
 157 extern void (*VisibilityFunc)(int state);
 158 extern void (*SpecialFunc)(int key, int x, int y);
 159 extern void (*SpecialUpFunc)(int key, int x, int y);
 160 extern void (*IdleFunc)(void);
 161 extern void (*MenuStatusFunc)(int state, int x, int y);
 162 extern void (*MenuStateFunc)(int state);
 163
 164 /* --- timers --- */
 165 struct GlutTimer {
 166     int time;
 167     void (*func)(int);
 168     int value;
 169     struct GlutTimer *next;
 170 };
 171
 172 extern struct GlutTimer *GlutTimers;
 173
 174 /* ------- Game Mode -------- */
 175 extern int GameMode;
 176
 177 #pragma GCC visibility pop