Added original SDK code for Alien Swarm.

public/view_shared.h

@@ -0,0 +1,164 @@
+//====== Copyright <20> 1996-2005, Valve Corporation, All rights reserved. =======//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#ifndef VIEW_SHARED_H
+#define VIEW_SHARED_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "convar.h"
+#include "mathlib/vector.h"
+#include "materialsystem/MaterialSystemUtil.h"
+
+
+//-----------------------------------------------------------------------------
+// Flags passed in with view setup
+//-----------------------------------------------------------------------------
+enum ClearFlags_t
+{
+	VIEW_CLEAR_COLOR = 0x1,
+	VIEW_CLEAR_DEPTH = 0x2,
+	VIEW_CLEAR_FULL_TARGET = 0x4,
+	VIEW_NO_DRAW = 0x8,
+	VIEW_CLEAR_OBEY_STENCIL = 0x10, // Draws a quad allowing stencil test to clear through portals
+	VIEW_CLEAR_STENCIL = 0x20,
+};
+
+
+enum MotionBlurMode_t
+{
+	MOTION_BLUR_DISABLE = 1,
+	MOTION_BLUR_GAME = 2,			// Game uses real-time inter-frame data
+	MOTION_BLUR_SFM = 3				// Use SFM data passed in CViewSetup structure
+};
+
+//-----------------------------------------------------------------------------
+// Purpose: Renderer setup data.  
+//-----------------------------------------------------------------------------
+class CViewSetup
+{
+public:
+	CViewSetup()
+	{
+		m_flAspectRatio = 0.0f;
+
+		// These match mat_dof convars
+		m_flNearBlurDepth = 20.0;
+		m_flNearFocusDepth = 100.0;
+		m_flFarFocusDepth = 250.0;
+		m_flFarBlurDepth = 1000.0;
+		m_flNearBlurRadius = 10.0;
+		m_flFarBlurRadius = 5.0;
+		m_nDoFQuality = 0;
+
+		m_bRenderToSubrectOfLargerScreen = false;
+		m_bDoBloomAndToneMapping = true;
+		m_nMotionBlurMode = MOTION_BLUR_GAME;
+		m_bDoDepthOfField = false;
+		m_bHDRTarget = false;
+		m_bOffCenter = false;
+		m_bCacheFullSceneState = false;
+		m_bDrawWorldNormal = false;
+		m_bCullFrontFaces = false;
+		m_bCustomViewMatrix = false;
+//		m_bUseExplicitViewVector = false;
+		m_bRenderFlashlightDepthTranslucents = false;
+	}
+
+// shared by 2D & 3D views
+
+	// left side of view window
+	int			x;					
+	// top side of view window
+	int			y;					
+	// width of view window
+	int			width;				
+	// height of view window
+	int			height;				
+
+// the rest are only used by 3D views
+
+	// Orthographic projection?
+	bool		m_bOrtho;			
+	// View-space rectangle for ortho projection.
+	float		m_OrthoLeft;		
+	float		m_OrthoTop;
+	float		m_OrthoRight;
+	float		m_OrthoBottom;
+
+	bool		m_bCustomViewMatrix;
+	matrix3x4_t	m_matCustomViewMatrix;
+
+	// horizontal FOV in degrees
+	float		fov;				
+	// horizontal FOV in degrees for in-view model
+	float		fovViewmodel;		
+
+	// 3D origin of camera
+	Vector		origin;					
+
+	// heading of camera (pitch, yaw, roll)
+	QAngle		angles;				
+	// local Z coordinate of near plane of camera
+	float		zNear;			
+		// local Z coordinate of far plane of camera
+	float		zFar;			
+
+	// local Z coordinate of near plane of camera ( when rendering view model )
+	float		zNearViewmodel;		
+	// local Z coordinate of far plane of camera ( when rendering view model )
+	float		zFarViewmodel;		
+
+	// The aspect ratio to use for computing the perspective projection matrix
+	// (0.0f means use the viewport)
+	float		m_flAspectRatio;
+
+	// Camera settings to control depth of field
+	float		m_flNearBlurDepth;
+	float		m_flNearFocusDepth;
+	float		m_flFarFocusDepth;
+	float		m_flFarBlurDepth;
+	float		m_flNearBlurRadius;
+	float		m_flFarBlurRadius;
+	int			m_nDoFQuality;
+
+	// Camera settings to control motion blur
+	MotionBlurMode_t	m_nMotionBlurMode;
+	float	m_flShutterTime;				// In seconds
+	Vector	m_vShutterOpenPosition;			// Start of frame or "shutter open"
+	QAngle	m_shutterOpenAngles;			//
+	Vector	m_vShutterClosePosition;		// End of frame or "shutter close"
+	QAngle	m_shutterCloseAngles;			// 
+
+	// Controls for off-center projection (needed for poster rendering)
+	float		m_flOffCenterTop;
+	float		m_flOffCenterBottom;
+	float		m_flOffCenterLeft;
+	float		m_flOffCenterRight;
+	bool		m_bOffCenter:1;
+
+	// set to true if this is to draw into a subrect of the larger screen
+	// this really is a hack, but no more than the rest of the way this class is used
+	bool		m_bRenderToSubrectOfLargerScreen:1;
+
+	// Controls that the SFM needs to tell the engine when to do certain post-processing steps
+	bool		m_bDoBloomAndToneMapping:1;
+	bool		m_bDoDepthOfField:1;
+	bool		m_bHDRTarget:1;
+	bool		m_bDrawWorldNormal:1;
+	bool		m_bCullFrontFaces:1;
+
+	// Cached mode for certain full-scene per-frame varying state such as sun entity coverage
+	bool		m_bCacheFullSceneState:1;
+
+	bool		m_bRenderFlashlightDepthTranslucents:1;
+};
+
+
+
+#endif // VIEW_SHARED_H