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cmatrendercontext.cpp
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cmatrendercontext.cpp
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================
#include "pch_materialsystem.h"
#define MATSYS_INTERNAL
#include <math.h>
#include "cmatrendercontext.h"
#include "tier2/renderutils.h"
#include "cmaterialsystem.h"
#include "occlusionquerymgr.h"
#include "texturemanager.h"
#include "IHardwareConfigInternal.h"
#include "ctype.h"
#include "tier1/fmtstr.h"
#ifndef DEDICATED
#include "togl/rendermechanism.h"
#endif
// NOTE: This must be the last file included!!!
#include "tier0/memdbgon.h"
//-----------------------------------------------------------------------------
// FIXME: right now, always keeping shader API in sync, because debug overlays don't seem to work 100% with the delayed matrix loading
#define FORCE_MATRIX_SYNC 1
#ifdef VALIDATE_MATRICES
#define ShouldValidateMatrices() true
#else
#define ShouldValidateMatrices() false
#endif
#ifdef VALIDATE_MATRICES
#define AllowLazyMatrixSync() false
#define ForceSync() ((void)(0))
#elif defined(FORCE_MATRIX_SYNC)
#define AllowLazyMatrixSync() false
#define ForceSync() ForceSyncMatrix( m_MatrixMode )
#else
#define AllowLazyMatrixSync() true
#define ForceSync() ((void)(0))
#endif
#ifdef _X360
static bool s_bDirtyDisk = false;
#endif
void ValidateMatrices( const VMatrix &m1, const VMatrix &m2, float eps = .001 )
{
if ( !ShouldValidateMatrices() )
return;
for ( int i = 0; i < 16; i++ )
{
AssertFloatEquals( m1.Base()[i], m1.Base()[i], eps );
}
}
//-----------------------------------------------------------------------------
// The dirty disk error report function (NOTE: Could be called from any thread!)
//-----------------------------------------------------------------------------
#ifdef _X360
unsigned ThreadedDirtyDiskErrorDisplay( void *pParam )
{
XShowDirtyDiscErrorUI( XBX_GetPrimaryUserId() );
}
#endif
void SpinPresent()
{
while ( true )
{
g_pShaderAPI->ClearColor3ub( 0, 0, 0 );
g_pShaderAPI->ClearBuffers( true, true, true, -1, -1 );
g_pShaderDevice->Present();
}
}
void ReportDirtyDisk()
{
#ifdef _X360
s_bDirtyDisk = true;
ThreadHandle_t h = CreateSimpleThread( ThreadedDirtyDiskErrorDisplay, NULL );
ThreadSetPriority( h, THREAD_PRIORITY_HIGHEST );
// If this is being called from the render thread, immediately swap
if ( ( ThreadGetCurrentId() == MaterialSystem()->GetRenderThreadId() ) ||
( ThreadInMainThread() && g_pMaterialSystem->GetThreadMode() != MATERIAL_QUEUED_THREADED ) )
{
SpinPresent();
}
#endif
}
//-----------------------------------------------------------------------------
// Install dirty disk error reporting function (call after SetMode)
//-----------------------------------------------------------------------------
void SetupDirtyDiskReportFunc()
{
g_pFullFileSystem->InstallDirtyDiskReportFunc( ReportDirtyDisk );
}
//-----------------------------------------------------------------------------
// Globals
//-----------------------------------------------------------------------------
CMemoryStack CMatRenderContextBase::sm_RenderData[2];
int CMatRenderContextBase::sm_nRenderLockCount = 0;
int CMatRenderContextBase::sm_nRenderStack = 0;
int CMatRenderContextBase::sm_nInitializeCount = 0;
//-----------------------------------------------------------------------------
// Constructor
//-----------------------------------------------------------------------------
CMatRenderContextBase::CMatRenderContextBase() :
m_pMaterialSystem( NULL ), m_RenderTargetStack( 16, 32 ), m_MatrixMode( NUM_MATRIX_MODES )
{
int i;
m_bDirtyViewState = true;
// Put a special element at the top of the RT stack (indicating back buffer is current top of stack)
// NULL indicates back buffer, -1 indicates full-size viewport
#if !defined( _X360 )
RenderTargetStackElement_t initialElement = { {NULL, NULL, NULL, NULL}, NULL, 0, 0, -1, -1 };
#else
RenderTargetStackElement_t initialElement = { {NULL}, NULL, 0, 0, -1, -1 };
#endif
m_RenderTargetStack.Push( initialElement );
for ( i = 0; i < MAX_FB_TEXTURES; i++ )
{
m_pCurrentFrameBufferCopyTexture[i] = NULL;
}
m_pCurrentMaterial = NULL;
m_pCurrentProxyData = NULL;
m_pUserDefinedLightmap = NULL;
m_HeightClipMode = MATERIAL_HEIGHTCLIPMODE_DISABLE;
m_HeightClipZ = 0.0f;
m_bEnableClipping = true;
m_bFlashlightEnable = false;
m_bFullFrameDepthIsValid = false;
for ( i = 0; i < NUM_MATRIX_MODES; i++ )
{
m_MatrixStacks[i].Push();
m_MatrixStacks[i].Top().matrix.Identity();
m_MatrixStacks[i].Top().flags |= ( MSF_DIRTY| MSF_IDENTITY );
}
m_pCurMatrixItem = &m_MatrixStacks[0].Top();
m_Viewport.Init( 0, 0, 0, 0 );
m_LastSetToneMapScale=Vector(1,1,1);
m_CurToneMapScale=1.0;
m_GoalToneMapScale = 1.0f;
}
//-----------------------------------------------------------------------------
// Init, shutdown
//-----------------------------------------------------------------------------
InitReturnVal_t CMatRenderContextBase::Init( )
{
MEM_ALLOC_CREDIT();
if ( !sm_nInitializeCount )
{
int nSize = 2200 * 1024;
int nCommitSize = 32 * 1024;
#ifdef SWDS
nSize = nCommitSize = 1024;
#endif
const char *gamedir = CommandLine()->ParmValue("-game", CommandLine()->ParmValue( "-defaultgamedir", "hl2" ) );
if ( gamedir && !Q_stricmp( "garrysmod", gamedir ) )
{
nSize = 4400 * 1024;
}
sm_RenderData[0].Init( nSize, nCommitSize, 0, 32 );
sm_RenderData[1].Init( nSize, nCommitSize, 0, 32 );
sm_nRenderStack = 0;
sm_nRenderLockCount = 0;
}
++sm_nInitializeCount;
return INIT_OK;
}
void CMatRenderContextBase::Shutdown( )
{
Assert( sm_nInitializeCount >= 0 );
if ( --sm_nInitializeCount == 0 )
{
sm_RenderData[0].Term();
sm_RenderData[1].Term();
}
}
void CMatRenderContextBase::CompactMemory()
{
if ( sm_nRenderLockCount )
{
DevWarning( "CMatRenderContext: Trying to compact with render data still locked!\n" );
sm_nRenderLockCount = 0;
}
sm_RenderData[0].FreeAll();
sm_RenderData[1].FreeAll();
}
void CMatRenderContextBase::MarkRenderDataUnused( bool bFrameBegin )
{
if ( sm_nRenderLockCount )
{
DevWarning( "CMatRenderContext: Trying to clear render data with render data still locked (%d)!\n", sm_nRenderLockCount );
sm_nRenderLockCount = 0;
}
// JAY: DO NOT MERGE FROM TF2 - L4D HAS CHANGED THE UNDERLYING INTERFACE IN A WAY THAT DOESN'T REQUIRE THIS
#if 0
// Switch stacks
if ( bFrameBegin )
{
sm_nRenderStack = 1 - sm_nRenderStack;
}
// Clear the new stack
#ifdef _DEBUG
memset( sm_RenderData[sm_nRenderStack].GetBase(), 0xFF, RenderDataSizeUsed() );
#endif
sm_RenderData[ sm_nRenderStack ].FreeAll( false );
#else
// Just for TF2, don't free the stack until the end of frame. TF2 Allocates render data and holds it over the lock
// period because we haven't revised the studiorender interface yet to change patterns.
// Switch stacks
if ( bFrameBegin )
{
sm_nRenderStack = 1 - sm_nRenderStack;
// Clear the new stack
#ifdef _DEBUG
memset( sm_RenderData[sm_nRenderStack].GetBase(), 0xFF, RenderDataSizeUsed() );
#endif
sm_RenderData[ sm_nRenderStack ].FreeAll( false );
}
#endif
}
int CMatRenderContextBase::RenderDataSizeUsed() const
{
return sm_RenderData[sm_nRenderStack].GetUsed();
}
bool CMatRenderContextBase::IsRenderData( const void *pData ) const
{
intp nData = (intp)pData;
intp nBaseAddress = (intp)sm_RenderData[sm_nRenderStack].GetBase();
intp nLastAddress = nBaseAddress + RenderDataSizeUsed();
return ( nData == 0 ) || ( nData >= nBaseAddress && nData < nLastAddress );
}
//-----------------------------------------------------------------------------
// debug logging - empty in base class
//-----------------------------------------------------------------------------
void CMatRenderContextBase::PrintfVA( char *fmt, va_list vargs )
{
}
void CMatRenderContextBase::Printf( const char *fmt, ... )
{
}
float CMatRenderContextBase::Knob( char *knobname, float *setvalue )
{
return 0.0f;
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
#define g_pShaderAPI Cannot_use_ShaderAPI_in_CMatRenderContextBase
void CMatRenderContextBase::InitializeFrom( CMatRenderContextBase *pInitialState )
{
int i;
m_pCurrentMaterial = pInitialState->m_pCurrentMaterial;
m_pCurrentProxyData = pInitialState->m_pCurrentProxyData;
m_lightmapPageID = pInitialState->m_lightmapPageID;
m_pUserDefinedLightmap = pInitialState->m_pUserDefinedLightmap;
m_pLocalCubemapTexture = pInitialState->m_pLocalCubemapTexture;
memcpy( m_pCurrentFrameBufferCopyTexture, pInitialState->m_pCurrentFrameBufferCopyTexture, MAX_FB_TEXTURES * sizeof(ITexture *) );
m_bEnableClipping = pInitialState->m_bEnableClipping;
m_HeightClipMode = pInitialState->m_HeightClipMode;
m_HeightClipZ = pInitialState->m_HeightClipZ;
m_pBoundMorph = pInitialState->m_pBoundMorph; // not reference counted?
m_RenderTargetStack.Clear();
m_RenderTargetStack.EnsureCapacity( pInitialState->m_RenderTargetStack.Count() );
for ( i = 0; i < pInitialState->m_RenderTargetStack.Count(); i++ )
{
m_RenderTargetStack.Push( pInitialState->m_RenderTargetStack[i] );
}
m_MatrixMode = pInitialState->m_MatrixMode;
for ( i = 0; i < NUM_MATRIX_MODES; i++ )
{
m_MatrixStacks[i].CopyFrom( pInitialState->m_MatrixStacks[i] );
}
m_bFlashlightEnable = pInitialState->m_bFlashlightEnable;
m_FrameTime = pInitialState->m_FrameTime;
m_GoalToneMapScale = pInitialState->m_GoalToneMapScale;
m_CurToneMapScale = pInitialState->m_CurToneMapScale;
m_LastSetToneMapScale = pInitialState->m_LastSetToneMapScale;
}
void CMatRenderContextBase::Bind( IMaterial *iMaterial, void *proxyData )
{
IMaterialInternal *material = static_cast<IMaterialInternal *>( iMaterial );
if ( !material )
{
Warning( "Programming error: CMatRenderContext::Bind: NULL material\n" );
material = static_cast<IMaterialInternal *>( g_pErrorMaterial );
}
material = material->GetRealTimeVersion(); //always work with the real time versions of materials internally
if ( GetCurrentMaterialInternal() != material )
{
if( !material->IsPrecached() )
{
DevWarning( "Binding uncached material \"%s\", artificially incrementing refcount\n", material->GetName() );
material->ArtificialAddRef();
material->Precache();
}
SetCurrentMaterialInternal(material);
}
SetCurrentProxy( proxyData );
}
void CMatRenderContextBase::BindLightmapPage( int lightmapPageID )
{
m_lightmapPageID = lightmapPageID;
}
void CMatRenderContextBase::SetRenderTargetEx( int nRenderTargetID, ITexture *pNewTarget )
{
// Verify valid top of RT stack
Assert ( m_RenderTargetStack.Count() > 0 );
// Reset the top of stack to the new target with old viewport
RenderTargetStackElement_t newTOS = m_RenderTargetStack.Top();
newTOS.m_pRenderTargets[nRenderTargetID] = pNewTarget;
m_RenderTargetStack.Pop( );
m_RenderTargetStack.Push( newTOS );
}
void CMatRenderContextBase::BindLocalCubemap( ITexture *pTexture )
{
if( pTexture )
{
m_pLocalCubemapTexture = pTexture;
}
else
{
m_pLocalCubemapTexture = TextureManager()->ErrorTexture();
}
}
ITexture *CMatRenderContextBase::GetRenderTarget( void )
{
if (m_RenderTargetStack.Count() > 0)
{
return m_RenderTargetStack.Top().m_pRenderTargets[0];
}
else
{
return NULL; // should this be something else, since NULL indicates back buffer?
}
}
ITexture *CMatRenderContextBase::GetRenderTargetEx( int nRenderTargetID )
{
// Verify valid top of stack
Assert ( m_RenderTargetStack.Count() > 0 );
// Top of render target stack
ITexture *pTexture = m_RenderTargetStack.Top().m_pRenderTargets[ nRenderTargetID ];
return pTexture;
}
void CMatRenderContextBase::SetFrameBufferCopyTexture( ITexture *pTexture, int textureIndex )
{
if( textureIndex < 0 || textureIndex > MAX_FB_TEXTURES )
{
Assert( 0 );
return;
}
// FIXME: Do I need to increment/decrement ref counts here, or assume that the app is going to do it?
m_pCurrentFrameBufferCopyTexture[textureIndex] = pTexture;
}
ITexture *CMatRenderContextBase::GetFrameBufferCopyTexture( int textureIndex )
{
if( textureIndex < 0 || textureIndex > MAX_FB_TEXTURES )
{
Assert( 0 );
return NULL; // FIXME! This should return the error texture.
}
return m_pCurrentFrameBufferCopyTexture[textureIndex];
}
void CMatRenderContextBase::MatrixMode( MaterialMatrixMode_t mode )
{
Assert( m_MatrixStacks[mode].Count() );
m_MatrixMode = mode;
m_pCurMatrixItem = &m_MatrixStacks[mode].Top();
}
void CMatRenderContextBase::CurrentMatrixChanged()
{
if ( m_MatrixMode == MATERIAL_VIEW )
{
m_bDirtyViewState = true;
m_bDirtyViewProjState = true;
}
else if ( m_MatrixMode == MATERIAL_PROJECTION )
{
m_bDirtyViewProjState = true;
}
}
void CMatRenderContextBase::PushMatrix()
{
CUtlStack<MatrixStackItem_t> &curStack = m_MatrixStacks[ m_MatrixMode ];
Assert( curStack.Count() );
int iNew = curStack.Push();
curStack[ iNew ] = curStack[ iNew - 1 ];
m_pCurMatrixItem = &curStack.Top();
CurrentMatrixChanged();
}
void CMatRenderContextBase::PopMatrix()
{
Assert( m_MatrixStacks[m_MatrixMode].Count() > 1 );
m_MatrixStacks[ m_MatrixMode ].Pop();
m_pCurMatrixItem = &m_MatrixStacks[m_MatrixMode].Top();
CurrentMatrixChanged();
}
void CMatRenderContextBase::LoadMatrix( const VMatrix& matrix )
{
m_pCurMatrixItem->matrix = matrix;
m_pCurMatrixItem->flags = MSF_DIRTY; // clearing identity implicitly
CurrentMatrixChanged();
}
void CMatRenderContextBase::LoadMatrix( const matrix3x4_t& matrix )
{
m_pCurMatrixItem->matrix = matrix;
m_pCurMatrixItem->flags = MSF_DIRTY; // clearing identity implicitly
CurrentMatrixChanged();
}
void CMatRenderContextBase::MultMatrix( const VMatrix& matrix )
{
VMatrix result;
MatrixMultiply( matrix, m_pCurMatrixItem->matrix, result );
m_pCurMatrixItem->matrix = result;
m_pCurMatrixItem->flags = MSF_DIRTY; // clearing identity implicitly
CurrentMatrixChanged();
}
void CMatRenderContextBase::MultMatrix( const matrix3x4_t& matrix )
{
CMatRenderContextBase::MultMatrix( VMatrix( matrix ) );
}
void CMatRenderContextBase::MultMatrixLocal( const VMatrix& matrix )
{
VMatrix result;
MatrixMultiply( m_pCurMatrixItem->matrix, matrix, result );
m_pCurMatrixItem->matrix = result;
m_pCurMatrixItem->flags = MSF_DIRTY; // clearing identity implicitly
CurrentMatrixChanged();
}
void CMatRenderContextBase::MultMatrixLocal( const matrix3x4_t& matrix )
{
CMatRenderContextBase::MultMatrixLocal( VMatrix( matrix ) );
}
void CMatRenderContextBase::LoadIdentity()
{
// FIXME: possibly track is identity so can call shader API LoadIdentity() later instead of LoadMatrix()?
m_pCurMatrixItem->matrix.Identity();
m_pCurMatrixItem->flags = ( MSF_DIRTY | MSF_IDENTITY );
CurrentMatrixChanged();
}
void CMatRenderContextBase::Ortho( double left, double top, double right, double bottom, double zNear, double zFar )
{
MatrixOrtho( m_pCurMatrixItem->matrix, left, top, right, bottom, zNear, zFar );
m_pCurMatrixItem->flags = MSF_DIRTY;
}
void CMatRenderContextBase::PerspectiveX( double flFovX, double flAspect, double flZNear, double flZFar )
{
MatrixPerspectiveX( m_pCurMatrixItem->matrix, flFovX, flAspect, flZNear, flZFar );
m_pCurMatrixItem->flags = MSF_DIRTY;
}
void CMatRenderContextBase::PerspectiveOffCenterX( double flFovX, double flAspect, double flZNear, double flZFar, double bottom, double top, double left, double right )
{
MatrixPerspectiveOffCenterX( m_pCurMatrixItem->matrix, flFovX, flAspect, flZNear, flZFar, bottom, top, left, right );
m_pCurMatrixItem->flags = MSF_DIRTY;
}
void CMatRenderContextBase::PickMatrix( int x, int y, int nWidth, int nHeight )
{
int vx, vy, vwidth, vheight;
GetViewport( vx, vy, vwidth, vheight );
// Compute the location of the pick region in projection space...
float px = 2.0 * (float)(x - vx) / (float)vwidth - 1;
float py = 2.0 * (float)(y - vy)/ (float)vheight - 1;
float pw = 2.0 * (float)nWidth / (float)vwidth;
float ph = 2.0 * (float)nHeight / (float)vheight;
// we need to translate (px, py) to the origin
// and scale so (pw,ph) -> (2, 2)
VMatrix mat;
MatrixSetIdentity( mat );
mat.m[0][0] = 2.0 / pw;
mat.m[1][1] = 2.0 / ph;
mat.m[0][3] = -2.0 * px / pw;
mat.m[1][3] = -2.0 * py / ph;
CMatRenderContextBase::MultMatrixLocal( mat );
}
void CMatRenderContextBase::Rotate( float flAngle, float x, float y, float z )
{
MatrixRotate( m_pCurMatrixItem->matrix, Vector( x, y, z ), flAngle );
m_pCurMatrixItem->flags = MSF_DIRTY;
}
void CMatRenderContextBase::Translate( float x, float y, float z )
{
MatrixTranslate( m_pCurMatrixItem->matrix, Vector( x, y, z ) );
m_pCurMatrixItem->flags = MSF_DIRTY;
}
void CMatRenderContextBase::Scale( float x, float y, float z )
{
VMatrix mat;
MatrixBuildScale( mat, x, y, z );
CMatRenderContextBase::MultMatrixLocal( mat );
}
void CMatRenderContextBase::GetMatrix( MaterialMatrixMode_t matrixMode, VMatrix *pMatrix )
{
CUtlStack<MatrixStackItem_t> &stack = m_MatrixStacks[ matrixMode ];
if ( !stack.Count() )
{
pMatrix->Identity();
return;
}
*pMatrix = stack.Top().matrix;
}
void CMatRenderContextBase::GetMatrix( MaterialMatrixMode_t matrixMode, matrix3x4_t *pMatrix )
{
CUtlStack<MatrixStackItem_t> &stack = m_MatrixStacks[ matrixMode ];
if ( !stack.Count() )
{
SetIdentityMatrix( *pMatrix );
return;
}
*pMatrix = stack.Top().matrix.As3x4();
}
void CMatRenderContextBase::RecomputeViewState()
{
if ( !m_bDirtyViewState )
return;
m_bDirtyViewState = false;
// FIXME: Cache this off to make it less expensive?
matrix3x4_t viewMatrix;
GetMatrix( MATERIAL_VIEW, &viewMatrix );
m_vecViewOrigin.x =
-( viewMatrix[0][3] * viewMatrix[0][0] +
viewMatrix[1][3] * viewMatrix[1][0] +
viewMatrix[2][3] * viewMatrix[2][0] );
m_vecViewOrigin.y =
-( viewMatrix[0][3] * viewMatrix[0][1] +
viewMatrix[1][3] * viewMatrix[1][1] +
viewMatrix[2][3] * viewMatrix[2][1] );
m_vecViewOrigin.z =
-( viewMatrix[0][3] * viewMatrix[0][2] +
viewMatrix[1][3] * viewMatrix[1][2] +
viewMatrix[2][3] * viewMatrix[2][2] );
// FIXME Implement computation of m_vecViewForward, etc
m_vecViewForward.Init();
m_vecViewRight.Init();
// FIXME: Is this correct?
m_vecViewUp.Init( viewMatrix[1][0], viewMatrix[1][1], viewMatrix[1][2] );
}
void CMatRenderContextBase::GetWorldSpaceCameraPosition( Vector *pCameraPos )
{
RecomputeViewState();
VectorCopy( m_vecViewOrigin, *pCameraPos );
}
void CMatRenderContextBase::GetWorldSpaceCameraVectors( Vector *pVecForward, Vector *pVecRight, Vector *pVecUp )
{
RecomputeViewState();
// FIXME Implement computation of m_vecViewForward
Assert( 0 );
if ( pVecForward )
{
VectorCopy( m_vecViewForward, *pVecForward );
}
if ( pVecRight )
{
VectorCopy( m_vecViewRight, *pVecRight );
}
if ( pVecUp )
{
VectorCopy( m_vecViewUp, *pVecUp );
}
}
void *CMatRenderContextBase::LockRenderData( int nSizeInBytes )
{
MEM_ALLOC_CREDIT();
void *pDest = sm_RenderData[ sm_nRenderStack ].Alloc( nSizeInBytes, false );
if ( !pDest )
{
ExecuteNTimes( 10, Warning("MaterialSystem: Out of memory in render data!\n") );
}
AddRefRenderData();
return pDest;
}
void CMatRenderContextBase::UnlockRenderData( void *pData )
{
ReleaseRenderData();
}
void CMatRenderContextBase::AddRefRenderData()
{
++sm_nRenderLockCount;
}
void CMatRenderContextBase::ReleaseRenderData()
{
--sm_nRenderLockCount;
Assert( sm_nRenderLockCount >= 0 );
if ( sm_nRenderLockCount == 0 )
{
OnRenderDataUnreferenced();
}
}
void CMatRenderContextBase::SyncMatrices()
{
}
void CMatRenderContextBase::SyncMatrix( MaterialMatrixMode_t mode )
{
}
void CMatRenderContextBase::SetHeightClipMode( enum MaterialHeightClipMode_t heightClipMode )
{
if( m_HeightClipMode != heightClipMode )
{
m_HeightClipMode = heightClipMode;
UpdateHeightClipUserClipPlane();
/*if ( HardwareConfig()->MaxUserClipPlanes() >= 1 && !HardwareConfig()->UseFastClipping())
{
UpdateHeightClipUserClipPlane();
}
else
{
g_pShaderAPI->SetHeightClipMode( heightClipMode );
}*/
}
}
void CMatRenderContextBase::SetHeightClipZ( float z )
{
if( z != m_HeightClipZ )
{
m_HeightClipZ = z;
UpdateHeightClipUserClipPlane();
}
// FIXME! : Need to move user clip plane support back to pre-dx9 cards (all of the pixel shaders
// have texkill in them. . blich.)
/*if ( HardwareConfig()->MaxUserClipPlanes() >= 1 && !HardwareConfig()->UseFastClipping() )
{
UpdateHeightClipUserClipPlane();
}
else
{
g_pShaderAPI->SetHeightClipZ( z );
}*/
}
bool CMatRenderContextBase::EnableClipping( bool bEnable )
{
if( bEnable != m_bEnableClipping )
{
m_bEnableClipping = bEnable;
ApplyCustomClipPlanes();
return !bEnable;
}
return bEnable;
}
void CMatRenderContextBase::Viewport( int x, int y, int width, int height )
{
// Verify valid top of RT stack
Assert ( m_RenderTargetStack.Count() > 0 );
// Reset the top of stack to the new viewport
RenderTargetStackElement_t newTOS;
memcpy(&newTOS,&(m_RenderTargetStack.Top()),sizeof(newTOS));
newTOS.m_nViewX = x;
newTOS.m_nViewY = y;
newTOS.m_nViewW = width;
newTOS.m_nViewH = height;
m_RenderTargetStack.Pop( );
m_RenderTargetStack.Push( newTOS );
}
//-----------------------------------------------------------------------------
// This version will push the current rendertarget + current viewport onto the stack
//-----------------------------------------------------------------------------
void CMatRenderContextBase::PushRenderTargetAndViewport( )
{
// Necessary to push the stack top onto itself; realloc could happen otherwise
m_RenderTargetStack.EnsureCapacity( m_RenderTargetStack.Count() + 1 );
m_RenderTargetStack.Push( m_RenderTargetStack.Top() );
CommitRenderTargetAndViewport();
}
//-----------------------------------------------------------------------------
// Pushes a render target on the render target stack. Without a specific
// viewport also being pushed, this function uses dummy values which indicate
// that the viewport should span the the full render target and pushes
// the RenderTargetStackElement_t onto the stack
//
// The push and pop methods also implicitly set the render target to the new top of stack
//
// NULL for pTexture indicates rendering to the back buffer
//-----------------------------------------------------------------------------
void CMatRenderContextBase::PushRenderTargetAndViewport( ITexture *pTexture )
{
// Just blindly push the data on the stack with flags indicating full bounds
#if !defined( _X360 )
RenderTargetStackElement_t element = { {pTexture, NULL, NULL, NULL}, 0, 0, -1, -1 };
#else
RenderTargetStackElement_t element = { {pTexture}, 0, 0, -1, -1 };
#endif
m_RenderTargetStack.Push( element );
CommitRenderTargetAndViewport();
}
//-----------------------------------------------------------------------------
// Pushes a render target on the render target stack and sets the viewport
//
// NULL for pTexture indicates rendering to the back buffer
//
// The push and pop methods also implicitly set the render target to the new top of stack
//-----------------------------------------------------------------------------
void CMatRenderContextBase::PushRenderTargetAndViewport( ITexture *pTexture, int nViewX, int nViewY, int nViewW, int nViewH )
{
CMatRenderContextBase::PushRenderTargetAndViewport( pTexture, NULL, nViewX, nViewY, nViewW, nViewH );
}
//-----------------------------------------------------------------------------
// Pushes a render target on the render target stack and sets the viewport
// The push and pop methods also implicitly set the render target to the new top of stack
//-----------------------------------------------------------------------------
void CMatRenderContextBase::PushRenderTargetAndViewport( ITexture *pTexture, ITexture *pDepthTexture, int nViewX, int nViewY, int nViewW, int nViewH )
{
// Just blindly push the data on the stack
#if !defined( _X360 )
RenderTargetStackElement_t element = { {pTexture, NULL, NULL, NULL}, pDepthTexture, nViewX, nViewY, nViewW, nViewH };
#else
RenderTargetStackElement_t element = { {pTexture}, pDepthTexture, nViewX, nViewY, nViewW, nViewH };
#endif
m_RenderTargetStack.Push( element );
CommitRenderTargetAndViewport();
}
//-----------------------------------------------------------------------------
// Pops from the render target stack
// Also implicitly sets the render target to the new top of stack
//-----------------------------------------------------------------------------
void CMatRenderContextBase::PopRenderTargetAndViewport( void )
{
// Check for underflow
if ( m_RenderTargetStack.Count() == 0 )
{
Assert( !"CMatRenderContext::PopRenderTargetAndViewport: Stack is empty!!!" );
return;
}
// Changelist #266217 added this to main/src/materialsystem.
Flush();
// Remove the top of stack
m_RenderTargetStack.Pop( );
CommitRenderTargetAndViewport();
}
void CMatRenderContextBase::RecomputeViewProjState()
{
if ( m_bDirtyViewProjState )
{
VMatrix viewMatrix, projMatrix;
// FIXME: Should consider caching this upon change for projection or view matrix.
GetMatrix( MATERIAL_VIEW, &viewMatrix );
GetMatrix( MATERIAL_PROJECTION, &projMatrix );
m_viewProjMatrix = projMatrix * viewMatrix;
m_bDirtyViewProjState = false;
}
}
//-----------------------------------------------------------------------------
// This returns the diameter of the sphere in pixels based on
// the current model, view, + projection matrices and viewport.
//-----------------------------------------------------------------------------
float CMatRenderContextBase::ComputePixelDiameterOfSphere( const Vector& vecAbsOrigin, float flRadius )
{
RecomputeViewState();
RecomputeViewProjState();
// This is sort of faked, but it's faster that way
// FIXME: Also, there's a much faster way to do this with similar triangles
// but I want to make sure it exactly matches the current matrices, so
// for now, I do it this conservative way
Vector4D testPoint1, testPoint2;
VectorMA( vecAbsOrigin, flRadius, m_vecViewUp, testPoint1.AsVector3D() );
VectorMA( vecAbsOrigin, -flRadius, m_vecViewUp, testPoint2.AsVector3D() );
testPoint1.w = testPoint2.w = 1.0f;
Vector4D clipPos1, clipPos2;
Vector4DMultiply( m_viewProjMatrix, testPoint1, clipPos1 );
Vector4DMultiply( m_viewProjMatrix, testPoint2, clipPos2 );
if (clipPos1.w >= 0.001f)
{
clipPos1.y /= clipPos1.w;
}
else
{
clipPos1.y *= 1000;
}
if (clipPos2.w >= 0.001f)
{
clipPos2.y /= clipPos2.w;
}
else
{
clipPos2.y *= 1000;
}
int vx, vy, vwidth, vheight;
GetViewport( vx, vy, vwidth, vheight );
// The divide-by-two here is because y goes from -1 to 1 in projection space
return vheight * fabs( clipPos2.y - clipPos1.y ) / 2.0f;
}
ConVar mat_accelerate_adjust_exposure_down( "mat_accelerate_adjust_exposure_down", "3.0", FCVAR_CHEAT );
ConVar mat_hdr_manual_tonemap_rate( "mat_hdr_manual_tonemap_rate", "1.0" );
ConVar mat_hdr_tonemapscale( "mat_hdr_tonemapscale", "1.0", FCVAR_CHEAT );
ConVar mat_tonemap_algorithm( "mat_tonemap_algorithm", "1", FCVAR_CHEAT, "0 = Original Algorithm 1 = New Algorithm" );
void CMatRenderContextBase::TurnOnToneMapping(void)
{
if ( ( HardwareConfig()->GetHDRType() != HDR_TYPE_NONE ) && ( m_FrameTime > 0.0f ) )
{
float elapsed_time = m_FrameTime;
float goalScale = m_GoalToneMapScale;
float rate = mat_hdr_manual_tonemap_rate.GetFloat();
if ( mat_tonemap_algorithm.GetInt() == 1 )
{
rate *= 2.0f; // Default 2x for the new tone mapping algorithm so it feels the same as the original
}
if ( rate == 0.0f ) // Zero indicates instantaneous tonemap scaling
{
m_CurToneMapScale = goalScale;
}
else
{
if ( goalScale < m_CurToneMapScale )
{
float acc_exposure_adjust = mat_accelerate_adjust_exposure_down.GetFloat();
// Adjust at up to 4x rate when over-exposed.
rate = min( ( acc_exposure_adjust * rate ), FLerp( rate, ( acc_exposure_adjust * rate ), 0.0f, 1.5f, ( m_CurToneMapScale - goalScale ) ) );
}
float flRateTimesTime = rate * elapsed_time;
if ( mat_tonemap_algorithm.GetInt() == 1 )
{
// For the new tone mapping algorithm, limit the rate based on the number of bins to
// help reduce the tone map scalar "riding the wave" of the histogram re-building
//Warning( "flRateTimesTime = %.4f", flRateTimesTime );
flRateTimesTime = min( flRateTimesTime, ( 1.0f / 16.0f ) * 0.25f ); // 16 is number of HDR sample bins defined in viewpostprocess.cpp
//Warning( " --> %.4f\n", flRateTimesTime );
}
float alpha = max( 0.0f, min( 1.0f, flRateTimesTime ) );
m_CurToneMapScale = ( goalScale * alpha ) + ( m_CurToneMapScale * ( 1.0f - alpha ) );
if ( !IsFinite( m_CurToneMapScale ) )
{
Assert( 0 );
m_CurToneMapScale = goalScale;
}
}
SetToneMappingScaleLinear( Vector( m_CurToneMapScale, m_CurToneMapScale, m_CurToneMapScale ) );
m_LastSetToneMapScale = Vector( m_CurToneMapScale, m_CurToneMapScale, m_CurToneMapScale );
}
}
void CMatRenderContextBase::ResetToneMappingScale(float sc)
{
m_CurToneMapScale = sc;
SetToneMappingScaleLinear( Vector( m_CurToneMapScale, m_CurToneMapScale, m_CurToneMapScale ) );
m_LastSetToneMapScale = Vector( m_CurToneMapScale, m_CurToneMapScale, m_CurToneMapScale );
// mat_hdr_tonemapscale.SetValue(1.0f);
m_GoalToneMapScale = 1;
}
void CMatRenderContextBase::SetGoalToneMappingScale( float monoscale)
{
Assert( IsFinite( monoscale ) );
if( IsFinite( monoscale ) )
{
m_GoalToneMapScale = monoscale;
}