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doomclassic/doom/v_video.h

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+/*
+===========================================================================
+
+Doom 3 BFG Edition GPL Source Code
+Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company. 
+
+This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").  
+
+Doom 3 BFG Edition Source Code 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 3 of the License, or
+(at your option) any later version.
+
+Doom 3 BFG Edition Source Code 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 Doom 3 BFG Edition Source Code.  If not, see <http://www.gnu.org/licenses/>.
+
+In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code.  If not, please request a copy in writing from id Software at the address below.
+
+If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
+
+===========================================================================
+*/
+
+#ifndef __V_VIDEO__
+#define __V_VIDEO__
+
+#include "doomtype.h"
+
+#include "doomdef.h"
+
+// Needed because we are refering to patches.
+#include "r_data.h"
+
+//
+// VIDEO
+//
+
+#define CENTERY			(SCREENHEIGHT/2)
+
+
+// Screen 0 is the screen updated by I_Update screen.
+// Screen 1 is an extra buffer.
+
+
+
+extern	byte*		screens[5];
+
+extern  int	dirtybox[4];
+
+const extern	byte	gammatable[5][256];
+extern	int	usegamma;
+
+
+
+// Allocates buffer screens, call before R_Init.
+void V_Init (void);
+
+
+void
+V_CopyRect
+( int		srcx,
+  int		srcy,
+  int		srcscrn,
+  int		width,
+  int		height,
+  int		destx,
+  int		desty,
+  int		destscrn );
+
+void
+V_DrawPatch
+( int		x,
+  int		y,
+  int		scrn,
+  patch_t*	patch);
+
+void
+V_DrawPatchDirect
+( int		x,
+  int		y,
+  int		scrn,
+  patch_t*	patch );
+
+
+// Draw a linear block of pixels into the view buffer.
+void
+V_DrawBlock
+( int		x,
+  int		y,
+  int		scrn,
+  int		width,
+  int		height,
+  byte*		src );
+
+// Reads a linear block of pixels into the view buffer.
+void
+V_GetBlock
+( int		x,
+  int		y,
+  int		scrn,
+  int		width,
+  int		height,
+  byte*		dest );
+
+
+void
+V_MarkRect
+( int		x,
+  int		y,
+  int		width,
+  int		height );
+
+#endif
+