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// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// Copyright(C) 1993-1996 Id Software, Inc.
// Copyright(C) 2005 Simon Howard
//
// 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.
//
// 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.
//
// DESCRIPTION:
// Gamma correction LUT.
// Functions to draw patches (by post) directly to screen.
// Functions to blit a block to the screen.
//
//-----------------------------------------------------------------------------
#ifndef __V_VIDEO__
#define __V_VIDEO__
#include "doomtype.h"
// Needed because we are refering to patches.
#include "v_patch.h"
//
// VIDEO
//
#define CENTERY (SCREENHEIGHT/2)
extern int dirtybox[4];
extern const byte gammatable[5][256];
// Allocates buffer screens, call before R_Init.
void V_Init (void);
// Draw a block from the specified source screen to the screen.
void V_CopyRect(int srcx, int srcy, byte *source,
int width, int height,
int destx, int desty);
void V_DrawPatch(int x, int y, patch_t *patch);
void V_DrawPatchFlipped(int x, int y, patch_t *patch);
void V_DrawFuzzPatch(int x, int y, patch_t *patch);
void V_DrawShadowedPatch(int x, int y, patch_t *patch);
void V_DrawPatchDirect(int x, int y, patch_t *patch);
// Draw a linear block of pixels into the view buffer.
void V_DrawBlock(int x, int y, int width, int height, byte *src);
void V_MarkRect(int x, int y, int width, int height);
// Draw a raw screen lump
void V_DrawRawScreen(byte *raw);
// Temporarily switch to using a different buffer to draw graphics, etc.
void V_UseBuffer(byte *buffer);
// Return to using the normal screen buffer to draw graphics.
void V_RestoreBuffer(void);
// Save a screenshot of the current screen to a file, named in the
// format described in the string passed to the function, eg.
// "DOOM%02i.pcx"
void V_ScreenShot(char *format);
#endif
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