mirror of
https://github.com/nillerusr/source-engine.git
synced 2024-12-22 22:27:05 +00:00
113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose: Clears color/depth, but obeys stencil while doing so
|
|
//
|
|
//=============================================================================//
|
|
|
|
#include "BaseVSShader.h"
|
|
|
|
#include "bufferclearobeystencil_vs20.inc"
|
|
#include "bufferclearobeystencil_ps20.inc"
|
|
#include "bufferclearobeystencil_ps20b.inc"
|
|
|
|
|
|
// memdbgon must be the last include file in a .cpp file!!!
|
|
#include "tier0/memdbgon.h"
|
|
|
|
DEFINE_FALLBACK_SHADER( BufferClearObeyStencil, BufferClearObeyStencil_DX9 )
|
|
|
|
BEGIN_VS_SHADER_FLAGS( BufferClearObeyStencil_DX9, "", SHADER_NOT_EDITABLE )
|
|
|
|
BEGIN_SHADER_PARAMS
|
|
SHADER_PARAM( CLEARCOLOR, SHADER_PARAM_TYPE_INTEGER, "1", "activates clearing of color" )
|
|
SHADER_PARAM( CLEARALPHA, SHADER_PARAM_TYPE_INTEGER, "-1", "activates clearing of alpha. -1 == copy CLEARCOLOR setting" )
|
|
SHADER_PARAM( CLEARDEPTH, SHADER_PARAM_TYPE_INTEGER, "1", "activates clearing of depth" )
|
|
END_SHADER_PARAMS
|
|
|
|
SHADER_INIT_PARAMS()
|
|
{
|
|
}
|
|
|
|
SHADER_FALLBACK
|
|
{
|
|
if ( g_pHardwareConfig->GetDXSupportLevel() < 90 )
|
|
{
|
|
return "BufferClearObeyStencil_DX8";
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
SHADER_INIT
|
|
{
|
|
if ( !params[CLEARALPHA]->IsDefined() )
|
|
params[CLEARALPHA]->SetIntValue( -1 );
|
|
}
|
|
|
|
SHADER_DRAW
|
|
{
|
|
bool bEnableColorWrites = params[CLEARCOLOR]->GetIntValue() != 0;
|
|
bool bEnableAlphaWrites = (params[CLEARALPHA]->GetIntValue() >= 0) ? (params[CLEARALPHA]->GetIntValue() != 0) : bEnableColorWrites;
|
|
|
|
bool bUsesColor = bEnableColorWrites || bEnableAlphaWrites;
|
|
SHADOW_STATE
|
|
{
|
|
pShaderShadow->DepthFunc( SHADER_DEPTHFUNC_ALWAYS );
|
|
bool bEnableDepthWrites = params[CLEARDEPTH]->GetIntValue() != 0;
|
|
pShaderShadow->EnableDepthWrites( bEnableDepthWrites );
|
|
|
|
pShaderShadow->EnableColorWrites( bEnableColorWrites );
|
|
pShaderShadow->EnableAlphaWrites( bEnableAlphaWrites );
|
|
|
|
pShaderShadow->VertexShaderVertexFormat( VERTEX_POSITION | VERTEX_COLOR, 1, NULL, 0 );
|
|
|
|
DECLARE_STATIC_VERTEX_SHADER( bufferclearobeystencil_vs20 );
|
|
SET_STATIC_VERTEX_SHADER_COMBO( USESCOLOR, bUsesColor || g_pHardwareConfig->PlatformRequiresNonNullPixelShaders() );
|
|
SET_STATIC_VERTEX_SHADER( bufferclearobeystencil_vs20 );
|
|
|
|
//avoid setting a pixel shader when only doing depth/stencil operations, as recommended by PIX
|
|
if( bUsesColor || g_pHardwareConfig->PlatformRequiresNonNullPixelShaders() )
|
|
{
|
|
if( g_pHardwareConfig->SupportsPixelShaders_2_b() )
|
|
{
|
|
DECLARE_STATIC_PIXEL_SHADER( bufferclearobeystencil_ps20b );
|
|
SET_STATIC_PIXEL_SHADER( bufferclearobeystencil_ps20b );
|
|
}
|
|
else
|
|
{
|
|
DECLARE_STATIC_PIXEL_SHADER( bufferclearobeystencil_ps20 );
|
|
SET_STATIC_PIXEL_SHADER( bufferclearobeystencil_ps20 );
|
|
}
|
|
}
|
|
|
|
pShaderShadow->EnableBlending( true );
|
|
pShaderShadow->BlendFunc( SHADER_BLEND_ONE, SHADER_BLEND_ZERO );
|
|
pShaderShadow->EnableAlphaTest( true );
|
|
pShaderShadow->AlphaFunc( SHADER_ALPHAFUNC_ALWAYS, 0 );
|
|
}
|
|
|
|
DYNAMIC_STATE
|
|
{
|
|
DECLARE_DYNAMIC_VERTEX_SHADER( bufferclearobeystencil_vs20 );
|
|
SET_DYNAMIC_VERTEX_SHADER( bufferclearobeystencil_vs20 );
|
|
|
|
//avoid setting a pixel shader when only doing depth/stencil operations, as recommended by PIX
|
|
if( bUsesColor || g_pHardwareConfig->PlatformRequiresNonNullPixelShaders() )
|
|
{
|
|
if( g_pHardwareConfig->SupportsPixelShaders_2_b() )
|
|
{
|
|
DECLARE_DYNAMIC_PIXEL_SHADER( bufferclearobeystencil_ps20b );
|
|
SET_DYNAMIC_PIXEL_SHADER( bufferclearobeystencil_ps20b );
|
|
}
|
|
else
|
|
{
|
|
DECLARE_DYNAMIC_PIXEL_SHADER( bufferclearobeystencil_ps20 );
|
|
SET_DYNAMIC_PIXEL_SHADER( bufferclearobeystencil_ps20 );
|
|
}
|
|
}
|
|
}
|
|
|
|
Draw( );
|
|
}
|
|
|
|
END_SHADER
|