// Emacs style mode select   -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// 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
// GNU General Public License for more details.
//
// $Log:$
//
// DESCRIPTION:
//	DOOM graphics stuff for X11, UNIX.
//
//-----------------------------------------------------------------------------

#include <signal.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>

#include "../doomstat.h"
#include "../i_system.h"
#include "../v_video.h"
#include "../m_argv.h"
#include "../d_main.h"

#include "../doomdef.h"

#include "../ib_video.h"

#define BYTES_PER_PIXEL 3

//uint8_t frameBuffer[SCREENWIDTH * SCREENHEIGHT * BYTES_PER_PIXEL];
static uint8_t *g_frameBuffer;
static size_t g_pitch;

//
// IB_StartTic
//
void IB_StartTic (void)
{
}

void IB_GetFramebuffer(unsigned char **pixels, size_t *pitch)
{
    *pixels = g_frameBuffer;
    *pitch = g_pitch;
}

void IB_FinishUpdate (void)
{
}

void IB_GetColor(unsigned char *bytes, unsigned char red, unsigned char green, unsigned char blue)
{
    bytes[0] = red;
    bytes[1] = green;
    bytes[2] = blue;
}

static void I_Quit_Wrapper(int dummy)
{
    (void)dummy;

    I_Quit();
}

void IB_InitGraphics(const char *title, size_t screen_width, size_t screen_height, size_t *bytes_per_pixel)
{
    (void) title;
    g_frameBuffer = malloc(screen_width * screen_height * BYTES_PER_PIXEL);
    g_pitch = screen_width * BYTES_PER_PIXEL;
    *bytes_per_pixel = BYTES_PER_PIXEL;

    signal(SIGINT, I_Quit_Wrapper);
}

void IB_ShutdownGraphics(void)
{
    free(g_frameBuffer);
}

void IB_GrabMouse(boolean grab)
{
    (void) grab;
}