text: /*
   
   Copyright (C) 2001-2002       A Nourai
   Copyright (C) 2006            Jacek Piszczek (Mac OSX port)
   
   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; either version 2
   of the License, or (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
   
   See the included (GNU.txt) GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
  
  #include "quakedef.h"
  #include "glquake.h"
  
  #include <dlfcn.h>
  
  //#include "vid_macos.h"
  
  // note: cocoa code is separated in vid_cocoa.m because of compilation pbs
  
  extern cvar_t vid_hardwaregamma;
  
  static void *agllibrary;
  static void *opengllibrary;
  void *AGL_GetProcAddress(char *functionname)
  {
  	void *func;
  	if (agllibrary)
  	{
  		func = dlsym(agllibrary, functionname);
  		if (func)
  			return func;
  	}
  	if (opengllibrary)
  	{
  		func = dlsym(opengllibrary, functionname);
  		if (func)
  			return func;
  	}
  	return NULL;
  }
  
  qboolean GLVID_Init(rendererstate_t *info, unsigned char *palette)
  {
  	int argnum;
  	int i;
  
  	agllibrary = dlopen("/System/Library/Frameworks/AGL.framework/AGL", RTLD_LAZY);
  	if (!agllibrary)
  	{
  		Con_Printf("Couldn't load AGL framework\n");
  		return false;
  	}
  	opengllibrary = dlopen("/System/Library/Frameworks/OpenGL.framework/OpenGL", RTLD_LAZY);
  	//don't care if opengl failed.
  
  	vid.numpages = 2;
  
  	// initialise the NSApplication and the screen
  	initCocoa(info);
  
  
  	// calculate the conwidth AFTER the screen has been opened
  	if (vid.pixelwidth <= 640)
  	{
  		vid.width = vid.pixelwidth;
  		vid.height = vid.pixelheight;
  	}
  	else
  	{
  		vid.width = vid.pixelwidth/2;
  		vid.height = vid.pixelheight/2;
  	}
  
  	if ((i = COM_CheckParm("-conwidth")) && i + 1 < com_argc)
  	{
  		vid.width = Q_atoi(com_argv[i + 1]);
  
  		// pick a conheight that matches with correct aspect
  		vid.height = vid.width * 3 / 4;
  	}
  
  	vid.width &= 0xfff8; // make it a multiple of eight
  
  	if ((i = COM_CheckParm("-conheight")) && i + 1 < com_argc)
  		vid.height = Q_atoi(com_argv[i + 1]);
  
  	if (vid.width < 320)
  		vid.width = 320;
  
  	if (vid.height < 200)
  		vid.height = 200;
  
  	GL_Init(info, AGL_GetProcAddress);
  
  	GLVID_SetPalette(palette);
  
  	return true;
  }
  
  void GLVID_DeInit(void)
  {
  	killCocoa();
  	GL_ForgetPointers();
  }
  
  void GLVID_SetPalette (unsigned char *palette)
  {
  	qbyte *pal;
  	unsigned int r,g,b;
  	int i;
  	unsigned *table1;
  	extern qbyte gammatable[256];
  
  	Con_Printf("Converting 8to24\n");
  
  	pal = palette;
  	table1 = d_8to24rgbtable;
  
  	if (vid_hardwaregamma.value)
  	{
  		for (i=0 ; i<256 ; i++)
  		{
  			r = pal[0];
  			g = pal[1];
  			b = pal[2];
  			pal += 3;
  
  			*table1++ = LittleLong((255<<24) + (r<<0) + (g<<8) + (b<<16));
  		}
  	}
  	else
  	{
  		for (i=0 ; i<256 ; i++)
  		{
  			r = gammatable[pal[0]];
  			g = gammatable[pal[1]];
  			b = gammatable[pal[2]];
  			pal += 3;
  
  			*table1++ = LittleLong((255<<24) + (r<<0) + (g<<8) + (b<<16));
  		}
  	}
  	d_8to24rgbtable[255] &= LittleLong(0xffffff);	// 255 is transparent
  	Con_Printf("Converted\n");
  }
  
  void Sys_SendKeyEvents(void)
  {
  }
  
  void GLVID_LockBuffer(void)
  {
  }
  
  void GLVID_UnlockBuffer(void)
  {
  }
  
  qboolean GLVID_IsLocked(void)
  {
  	return 0;
  }
  
  void GLVID_SetCaption(const char *text)
  {
  }
  
  void GLVID_SwapBuffers(void)
  {
  	flushCocoa();
  }
  
  void GLVID_SetDeviceGammaRamp(unsigned short *ramps)
  {
  	cocoaGamma(ramps,ramps+256,ramps+512);
  }
  
  void GLVID_ShiftPalette(unsigned char *p)
  {
  	extern	unsigned short ramps[3][256];
  	if (vid_hardwaregamma.value)
  		GLVID_SetDeviceGammaRamp(ramps);
  }
  
  //I'm too lazy to put these stubs elsewhere.
  void INS_Init (void)
  {
  }
  void INS_ReInit(void)
  {
  }
  void INS_Shutdown (void)
  {
  }
  void INS_Commands (void)
  {
  }
  void INS_EnumerateDevices(void *ctx, void(*callback)(void *ctx, const char *type, const char *devicename, unsigned int *qdevid))
  {
  }
  void INS_Move (void)
  {
  }
  
  #define SYS_CLIPBOARD_SIZE  256
  static char clipboard_buffer[SYS_CLIPBOARD_SIZE] = {0};
  void Sys_Clipboard_PasteText(clipboardtype_t cbt, void (*callback)(void *cb, char *utf8), void *ctx)
  {
  	callback(ctx, clipboard_buffer);
  }
  void Sys_SaveClipboard(clipboardtype_t cbt, char *text)
  {
   	Q_strncpyz(clipboard_buffer, text, SYS_CLIPBOARD_SIZE);
  }
  
  