source-engine/engine/view.cpp

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2020-04-22 16:56:21 +00:00
//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=====================================================================================//
#include "quakedef.h"
#include "gl_model_private.h"
#include "console.h"
#include "cdll_engine_int.h"
#include "gl_cvars.h"
#include "ivrenderview.h"
#include "gl_matsysiface.h"
#include "gl_drawlights.h"
#include "gl_rsurf.h"
#include "r_local.h"
#include "debugoverlay.h"
#include "vgui_baseui_interface.h"
#include "materialsystem/imaterialsystemhardwareconfig.h"
#include "demo.h"
#include "istudiorender.h"
#include "materialsystem/imesh.h"
#include "tier0/vprof.h"
#include "host.h"
#include "view.h"
#include "client.h"
#include "sys.h"
#include "cl_main.h"
#include "l_studio.h"
#include "IOcclusionSystem.h"
#include "cl_demouipanel.h"
#include "mod_vis.h"
#include "ivideomode.h"
#include "gl_shader.h"
#include "gl_rmain.h"
#include "engine/view_sharedv1.h"
#include "ispatialpartitioninternal.h"
#include "toolframework/itoolframework.h"
#include "icommandline.h"
#include "VGuiMatSurface/IMatSystemSurface.h"
#include "sourcevr/isourcevirtualreality.h"
#include "materialsystem/itexture.h"
#include "render.h"
#include "iclientvirtualreality.h"
#if defined( REPLAY_ENABLED )
#include "replay/iclientreplay.h"
#include "replay_internal.h"
#endif
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
class IClientEntity;
float r_blend;
float r_colormod[3] = { 1, 1, 1 };
bool g_bIsBlendingOrModulating = false;
bool g_bIsRenderingVGuiOnly = false;
colorVec R_LightPoint (Vector& p);
void R_DrawLightmaps( IWorldRenderList *pList, int pageId );
void R_DrawIdentityBrushModel( IWorldRenderList *pRenderList, model_t *model );
static ConVar mat_color_projection( "mat_color_projection", "0", FCVAR_ARCHIVE );
/*
The view is allowed to move slightly from it's true position for bobbing,
but if it exceeds 8 pixels linear distance (spherical, not box), the list of
entities sent from the server may not include everything in the pvs, especially
when crossing a water boudnary.
*/
extern ConVar r_avglightmap;
/*
=================
V_CheckGamma
FIXME: Define this as a change function to the ConVar's below rather than polling it
every frame. Note, still need to make sure it gets called very first time through frame loop.
=================
*/
bool V_CheckGamma( void )
{
if ( IsX360() )
return false;
tmZoneFiltered( TELEMETRY_LEVEL0, 50, TMZF_NONE, "%s", __FUNCTION__ );
static int lastLightmap = -1;
extern void GL_RebuildLightmaps( void );
// Refresh all lightmaps if r_avglightmap changes
if ( r_avglightmap.GetInt() != lastLightmap )
{
lastLightmap = r_avglightmap.GetInt();
GL_RebuildLightmaps();
}
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Initializes the view renderer
// Output : void V_Init
//-----------------------------------------------------------------------------
void V_Init( void )
{
BuildGammaTable( 2.2f, 2.2f, 0.0f, 2 );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void V_Shutdown( void )
{
// TODO, cleanup
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : -
//-----------------------------------------------------------------------------
void V_RenderVGuiOnly_NoSwap()
{
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "%s", __FUNCTION__ );
// Need to clear the screen in this case, cause we're not drawing
// the loading screen.
UpdateMaterialSystemConfig();
if( UseVR() && g_pClientVR )
{
g_pClientVR->DrawMainMenu();
}
else
{
CMatRenderContextPtr pRenderContext( materials );
pRenderContext->ClearBuffers( true, true );
EngineVGui()->Paint( (PaintMode_t)(PAINT_UIPANELS | PAINT_CURSOR ));
}
}
//-----------------------------------------------------------------------------
// Purpose: Renders only vgui (for loading progress) including buffer swapping and vgui simulation
//-----------------------------------------------------------------------------
void V_RenderVGuiOnly( void )
{
materials->BeginFrame( host_frametime );
EngineVGui()->Simulate();
g_EngineRenderer->FrameBegin();
toolframework->RenderFrameBegin();
V_RenderVGuiOnly_NoSwap();
toolframework->RenderFrameEnd();
g_EngineRenderer->FrameEnd( );
materials->EndFrame();
Shader_SwapBuffers();
}
void FullViewColorAdjustment( )
{
if ( mat_color_projection.GetInt() == 0 )
{
return;
}
CMatRenderContextPtr pRenderContext( materials );
ITexture *pFullFrameFB1 = materials->FindTexture( "_rt_FullFrameFB1", TEXTURE_GROUP_RENDER_TARGET );
pRenderContext->CopyRenderTargetToTextureEx( pFullFrameFB1, 0, NULL, NULL );
IMaterial *color_correction = materials->FindMaterial( "dev/red_green_projection", TEXTURE_GROUP_OTHER, true );
if ( color_correction )
{
color_correction->IncrementReferenceCount();
}
int nViewportX, nViewportY, nViewportWidth, nViewportHeight;
pRenderContext->GetViewport( nViewportX, nViewportY, nViewportWidth, nViewportHeight );
pRenderContext->DrawScreenSpaceRectangle( color_correction, 0, 0, nViewportWidth, nViewportHeight,
nViewportX, nViewportY,
nViewportX + nViewportWidth - 1, nViewportY + nViewportHeight - 1,
nViewportWidth, nViewportHeight );
if ( color_correction )
{
color_correction->DecrementReferenceCount();
}
}
//-----------------------------------------------------------------------------
// Purpose: Render the world
//-----------------------------------------------------------------------------
void V_RenderView( void )
{
VPROF( "V_RenderView" );
MDLCACHE_COARSE_LOCK_(g_pMDLCache);
bool bCanRenderWorld = ( host_state.worldmodel != NULL ) && cl.IsActive();
#if defined( REPLAY_ENABLED )
if ( g_pClientReplay && Replay_IsSupportedModAndPlatform() )
{
bCanRenderWorld = bCanRenderWorld && g_pClientReplay->ShouldRender();
}
#endif
bCanRenderWorld = bCanRenderWorld && toolframework->ShouldGameRenderView();
if ( IsPC() && bCanRenderWorld && g_bTextMode )
{
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "SysSleep()" );
// Sleep to let the other textmode clients get some cycles.
Sys_Sleep( 15 );
bCanRenderWorld = false;
}
if ( !bCanRenderWorld )
{
// Because we now do a lot of downloading before spawning map, don't render anything world related
// until we are an active client.
V_RenderVGuiOnly_NoSwap();
}
else if ( !g_LostVideoMemory )
{
// since we know we're going to render the world, check for lightmap updates while it is easy
// to tear down and rebuild
R_CheckForLightingConfigChanges();
// We can get into situations where some other material system app
// is trying to start up; in those cases, we shouldn't render...
vrect_t scr_vrect = videomode->GetClientViewRect();
g_ClientDLL->View_Render( &scr_vrect );
}
FullViewColorAdjustment();
}
void Linefile_Draw( void );
//-----------------------------------------------------------------------------
// Purpose: Expose rendering interface to client .dll
//-----------------------------------------------------------------------------
class CVRenderView : public IVRenderView, public ISpatialLeafEnumerator
{
public:
void TouchLight( dlight_t *light )
{
int i;
i = light - cl_dlights;
if (i >= 0 && i < MAX_DLIGHTS)
{
r_dlightchanged |= (1 << i);
}
}
void DrawBrushModel(
IClientEntity *baseentity,
model_t *model,
const Vector& origin,
const QAngle& angles,
bool bUnused )
{
R_DrawBrushModel( baseentity, model, origin, angles, DEPTH_MODE_NORMAL, true, true );
}
virtual void DrawBrushModelEx( IClientEntity *baseentity, model_t *model, const Vector& origin, const QAngle& angles, DrawBrushModelMode_t mode )
{
bool bDrawOpaque = ( mode != DBM_DRAW_TRANSLUCENT_ONLY );
bool bDrawTranslucent = ( mode != DBM_DRAW_OPAQUE_ONLY );
R_DrawBrushModel( baseentity, model, origin, angles, DEPTH_MODE_NORMAL, bDrawOpaque, bDrawTranslucent );
}
// Draw brush model shadow
void DrawBrushModelShadow( IClientRenderable *pRenderable )
{
R_DrawBrushModelShadow( pRenderable );
}
void DrawIdentityBrushModel( IWorldRenderList *pList, model_t *model )
{
R_DrawIdentityBrushModel( pList, model );
}
void Draw3DDebugOverlays( void )
{
DrawSavedModelDebugOverlays();
if ( g_pDemoUI )
{
g_pDemoUI->DrawDebuggingInfo();
}
if ( g_pDemoUI2 )
{
g_pDemoUI2->DrawDebuggingInfo();
}
SpatialPartition()->DrawDebugOverlays();
CDebugOverlay::Draw3DOverlays();
// Render occlusion debugging info
OcclusionSystem()->DrawDebugOverlays();
}
FORCEINLINE void CheckBlend( void )
{
g_bIsBlendingOrModulating = ( r_blend != 1.0 ) ||
( r_colormod[0] != 1.0 ) || ( r_colormod[1] != 1.0 ) || ( r_colormod[2] != 1.0 );
}
void SetBlend( float blend )
{
r_blend = blend;
CheckBlend();
}
float GetBlend( void )
{
return r_blend;
}
void SetColorModulation( float const* blend )
{
VectorCopy( blend, r_colormod );
CheckBlend();
}
void GetColorModulation( float* blend )
{
VectorCopy( r_colormod, blend );
}
void SceneBegin( void )
{
g_EngineRenderer->DrawSceneBegin();
}
void SceneEnd( void )
{
g_EngineRenderer->DrawSceneEnd();
}
void GetVisibleFogVolume( const Vector& vEyePoint, VisibleFogVolumeInfo_t *pInfo )
{
R_GetVisibleFogVolume( vEyePoint, pInfo );
}
IWorldRenderList * CreateWorldList()
{
return g_EngineRenderer->CreateWorldList();
}
void BuildWorldLists( IWorldRenderList *pList, WorldListInfo_t* pInfo, int iForceFViewLeaf, const VisOverrideData_t* pVisData, bool bShadowDepth, float *pReflectionWaterHeight )
{
g_EngineRenderer->BuildWorldLists( pList, pInfo, iForceFViewLeaf, pVisData, bShadowDepth, pReflectionWaterHeight );
}
void DrawWorldLists( IWorldRenderList *pList, unsigned long flags, float waterZAdjust )
{
g_EngineRenderer->DrawWorldLists( pList, flags, waterZAdjust );
}
// Optimization for top view
void DrawTopView( bool enable )
{
R_DrawTopView( enable );
}
void TopViewBounds( Vector2D const& mins, Vector2D const& maxs )
{
R_TopViewBounds( mins, maxs );
}
void DrawLights( void )
{
DrawLightSprites();
#ifdef USE_CONVARS
DrawLightDebuggingInfo();
#endif
}
void DrawMaskEntities( void )
{
// UNDONE: Don't do this with masked brush models, they should probably be in a separate list
// R_DrawMaskEntities()
}
void DrawTranslucentSurfaces( IWorldRenderList *pList, int sortIndex, unsigned long flags, bool bShadowDepth )
{
Shader_DrawTranslucentSurfaces( pList, sortIndex, flags, bShadowDepth );
}
bool LeafContainsTranslucentSurfaces( IWorldRenderList *pList, int sortIndex, unsigned long flags )
{
return Shader_LeafContainsTranslucentSurfaces( pList, sortIndex, flags );
}
void DrawLineFile( void )
{
Linefile_Draw();
}
void DrawLightmaps( IWorldRenderList *pList, int pageId )
{
R_DrawLightmaps( pList, pageId );
}
void ViewSetupVis( bool novis, int numorigins, const Vector origin[] )
{
g_EngineRenderer->ViewSetupVis( novis, numorigins, origin );
}
void ViewSetupVisEx( bool novis, int numorigins, const Vector origin[], unsigned int &returnFlags )
{
g_EngineRenderer->ViewSetupVisEx( novis, numorigins, origin, returnFlags );
}
bool AreAnyLeavesVisible( int *leafList, int nLeaves )
{
return Map_AreAnyLeavesVisible( *host_state.worldbrush, leafList, nLeaves );
}
// For backward compatibility only!!!
void VguiPaint( void )
{
EngineVGui()->BackwardCompatibility_Paint();
}
void VGui_Paint( int mode )
{
EngineVGui()->Paint( (PaintMode_t)mode );
}
void ViewDrawFade( byte *color, IMaterial* pFadeMaterial )
{
VPROF_BUDGET( "ViewDrawFade", VPROF_BUDGETGROUP_WORLD_RENDERING );
g_EngineRenderer->ViewDrawFade( color, pFadeMaterial );
}
void OLD_SetProjectionMatrix( float fov, float zNear, float zFar )
{
// Here to preserve backwards compat
}
void OLD_SetOffCenterProjectionMatrix( float fov, float zNear, float zFar, float flAspectRatio,
float flBottom, float flTop, float flLeft, float flRight )
{
// Here to preserve backwards compat
}
void OLD_SetProjectionMatrixOrtho( float left, float top, float right, float bottom, float zNear, float zFar )
{
// Here to preserve backwards compat
}
colorVec GetLightAtPoint( Vector& pos )
{
return R_LightPoint( pos );
}
int GetViewEntity( void )
{
return cl.m_nViewEntity;
}
float GetFieldOfView( void )
{
return g_EngineRenderer->GetFov();
}
unsigned char **GetAreaBits( void )
{
return cl.GetAreaBits_BackwardCompatibility();
}
virtual void SetAreaState(
unsigned char chAreaBits[MAX_AREA_STATE_BYTES],
unsigned char chAreaPortalBits[MAX_AREA_PORTAL_STATE_BYTES] )
{
*cl.GetAreaBits_BackwardCompatibility() = 0; // Clear the b/w compatibiltiy thing.
memcpy( cl.m_chAreaBits, chAreaBits, MAX_AREA_STATE_BYTES );
memcpy( cl.m_chAreaPortalBits, chAreaPortalBits, MAX_AREA_PORTAL_STATE_BYTES );
cl.m_bAreaBitsValid = true;
}
// World fog for world rendering
void SetFogVolumeState( int fogVolume, bool useHeightFog )
{
R_SetFogVolumeState(fogVolume, useHeightFog );
}
virtual void InstallBrushSurfaceRenderer( IBrushRenderer* pBrushRenderer )
{
R_InstallBrushRenderOverride( pBrushRenderer );
}
struct BoxIntersectWaterContext_t
{
bool m_bFoundWaterLeaf;
int m_nLeafWaterDataID;
};
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bool EnumerateLeaf( int leaf, intp context )
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{
BoxIntersectWaterContext_t *pSearchContext = ( BoxIntersectWaterContext_t * )context;
mleaf_t *pLeaf = &host_state.worldmodel->brush.pShared->leafs[leaf];
if( pLeaf->leafWaterDataID == pSearchContext->m_nLeafWaterDataID )
{
pSearchContext->m_bFoundWaterLeaf = true;
// found it . . stop enumeration
return false;
}
return true;
}
bool DoesBoxIntersectWaterVolume( const Vector &mins, const Vector &maxs, int leafWaterDataID )
{
BoxIntersectWaterContext_t context;
context.m_bFoundWaterLeaf = false;
context.m_nLeafWaterDataID = leafWaterDataID;
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g_pToolBSPTree->EnumerateLeavesInBox( mins, maxs, this, ( intp )&context );
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return context.m_bFoundWaterLeaf;
}
// Push, pop views
virtual void Push3DView( const CViewSetup &view, int nFlags, ITexture* pRenderTarget, Frustum frustumPlanes )
{
g_EngineRenderer->Push3DView( view, nFlags, pRenderTarget, frustumPlanes, NULL );
}
virtual void Push2DView( const CViewSetup &view, int nFlags, ITexture* pRenderTarget, Frustum frustumPlanes )
{
g_EngineRenderer->Push2DView( view, nFlags, pRenderTarget, frustumPlanes );
}
virtual void PopView( Frustum frustumPlanes )
{
g_EngineRenderer->PopView( frustumPlanes );
}
virtual void SetMainView( const Vector &vecOrigin, const QAngle &angles )
{
g_EngineRenderer->SetMainView( vecOrigin, angles );
}
void OverrideViewFrustum( Frustum custom )
{
g_EngineRenderer->OverrideViewFrustum( custom );
}
void DrawBrushModelShadowDepth(
IClientEntity *baseentity,
model_t *model,
const Vector& origin,
const QAngle& angles,
ERenderDepthMode DepthMode )
{
R_DrawBrushModel( baseentity, model, origin, angles, DepthMode, true, true );
}
void UpdateBrushModelLightmap( model_t *model, IClientRenderable *pRenderable )
{
g_EngineRenderer->UpdateBrushModelLightmap( model, pRenderable );
}
void BeginUpdateLightmaps( void )
{
g_EngineRenderer->BeginUpdateLightmaps();
}
void EndUpdateLightmaps( void )
{
g_EngineRenderer->EndUpdateLightmaps();
}
virtual void Push3DView( const CViewSetup &view, int nFlags, ITexture* pRenderTarget, Frustum frustumPlanes, ITexture* pDepthTexture )
{
g_EngineRenderer->Push3DView( view, nFlags, pRenderTarget, frustumPlanes, pDepthTexture );
}
void GetMatricesForView( const CViewSetup &view, VMatrix *pWorldToView, VMatrix *pViewToProjection, VMatrix *pWorldToProjection, VMatrix *pWorldToPixels )
{
ComputeViewMatrices( pWorldToView, pViewToProjection, pWorldToProjection, view );
ComputeWorldToScreenMatrix( pWorldToPixels, *pWorldToProjection, view );
}
};
static CVRenderView s_RenderView;
EXPOSE_SINGLE_INTERFACE_GLOBALVAR( CVRenderView, IVRenderView, VENGINE_RENDERVIEW_INTERFACE_VERSION, s_RenderView );