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public/materialsystem/imaterialsystemhardwareconfig.h
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258
public/materialsystem/imaterialsystemhardwareconfig.h
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//===== Copyright (c) 1996-2005, Valve Corporation, All rights reserved. ======//
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//
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// Purpose:
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//
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// $Header: $
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// $NoKeywords: $
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//===========================================================================//
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#ifndef IMATERIALSYSTEMHARDWARECONFIG_H
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#define IMATERIALSYSTEMHARDWARECONFIG_H
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#ifdef _WIN32
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#pragma once
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#endif
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#if defined( DX_TO_GL_ABSTRACTION )
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#define IsPlatformOpenGL() true
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#else
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#define IsPlatformOpenGL() false
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#endif
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#include "tier1/interface.h"
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//#include "tier2/tier2.h"
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#include "bitmap/imageformat.h"
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#include "imaterialsystem.h"
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//-----------------------------------------------------------------------------
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// Material system interface version
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//-----------------------------------------------------------------------------
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FORCEINLINE bool IsOpenGL( void )
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{
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return IsPlatformOpenGL();
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}
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//-----------------------------------------------------------------------------
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// Material system interface version
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//-----------------------------------------------------------------------------
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// For now, vertex compression is simply "on or off" (for the sake of simplicity
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// and MeshBuilder perf.), but later we may support multiple flavours.
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enum VertexCompressionType_t
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{
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// This indicates an uninitialized VertexCompressionType_t value
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VERTEX_COMPRESSION_INVALID = 0xFFFFFFFF,
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// 'VERTEX_COMPRESSION_NONE' means that no elements of a vertex are compressed
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VERTEX_COMPRESSION_NONE = 0,
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// Currently (more stuff may be added as needed), 'VERTEX_COMPRESSION_ON' means:
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// - if a vertex contains VERTEX_ELEMENT_NORMAL, this is compressed
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// (see CVertexBuilder::CompressedNormal3f)
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// - if a vertex contains VERTEX_ELEMENT_USERDATA4 (and a normal - together defining a tangent
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// frame, with the binormal reconstructed in the vertex shader), this is compressed
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// (see CVertexBuilder::CompressedUserData)
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// - if a vertex contains VERTEX_ELEMENT_BONEWEIGHTSx, this is compressed
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// (see CVertexBuilder::CompressedBoneWeight3fv)
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VERTEX_COMPRESSION_ON = 1
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};
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// use DEFCONFIGMETHOD to define time-critical methods that we want to make just return constants
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// on the 360, so that the checks will happen at compile time. Not all methods are defined this way
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// - just the ones that I perceive as being called often in the frame interval.
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#ifdef _GAMECONSOLE
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#define DEFCONFIGMETHOD( ret_type, method, xbox_return_value ) \
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FORCEINLINE ret_type method const \
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{ \
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return xbox_return_value; \
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}
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#else
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#define DEFCONFIGMETHOD( ret_type, method, xbox_return_value ) \
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virtual ret_type method const = 0;
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#endif
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//-----------------------------------------------------------------------------
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// Shadow filter types
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// Important notes: These enums directly correspond to combo indices.
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// If you change these, make the corresponding change in common_ps_fxc.h
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// Cheap ones are at the end on purpose, and are only run on ps2b
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// SHADOWFILTERMODE_DEFAULT must be 0.
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//-----------------------------------------------------------------------------
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enum ShadowFilterMode_t
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{
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SHADOWFILTERMODE_DEFAULT = 0,
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NVIDIA_PCF = 0,
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ATI_NO_PCF_FETCH4 = 1,
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NVIDIA_PCF_CHEAP = 2,
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ATI_NOPCF = 3,
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// Game consoles use a different set of combo indices to control shadow filtering.
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GAMECONSOLE_NINE_TAP_PCF = 0,
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GAMECONSOLE_SINGLE_TAP_PCF = 1,
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// All modes >= SHADOWFILTERMODE_FIRST_CHEAP_MODE are considered the "cheap" modes.
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#if defined( _GAMECONSOLE )
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SHADOWFILTERMODE_FIRST_CHEAP_MODE = GAMECONSOLE_SINGLE_TAP_PCF,
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#else
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SHADOWFILTERMODE_FIRST_CHEAP_MODE = NVIDIA_PCF_CHEAP,
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#endif
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};
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//-----------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------
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enum CSMQualityMode_t
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{
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CSMQUALITY_VERY_LOW,
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CSMQUALITY_LOW,
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CSMQUALITY_MEDIUM,
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CSMQUALITY_HIGH,
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CSMQUALITY_TOTAL_MODES
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};
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// CSMShaderMode_t must match the CSM_MODE static combo in the pixel shaders
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enum CSMShaderMode_t
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{
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CSMSHADERMODE_LOW_OR_VERY_LOW = 0,
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CSMSHADERMODE_MEDIUM = 1,
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CSMSHADERMODE_HIGH = 2,
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CSMSHADERMODE_ATIFETCH4 = 3,
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CSMSHADERMODE_TOTAL_MODES
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};
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//-----------------------------------------------------------------------------
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// Material system configuration
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//-----------------------------------------------------------------------------
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class IMaterialSystemHardwareConfig
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{
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public:
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virtual int GetFrameBufferColorDepth() const = 0;
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virtual int GetSamplerCount() const = 0;
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virtual bool HasSetDeviceGammaRamp() const = 0;
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DEFCONFIGMETHOD( bool, SupportsStaticControlFlow(), true );
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virtual VertexCompressionType_t SupportsCompressedVertices() const = 0;
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virtual int MaximumAnisotropicLevel() const = 0; // 0 means no anisotropic filtering
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virtual int MaxTextureWidth() const = 0;
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virtual int MaxTextureHeight() const = 0;
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virtual int TextureMemorySize() const = 0;
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virtual bool SupportsMipmappedCubemaps() const = 0;
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virtual int NumVertexShaderConstants() const = 0;
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virtual int NumPixelShaderConstants() const = 0;
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virtual int MaxNumLights() const = 0;
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virtual int MaxTextureAspectRatio() const = 0;
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virtual int MaxVertexShaderBlendMatrices() const = 0;
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virtual int MaxUserClipPlanes() const = 0;
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virtual bool UseFastClipping() const = 0;
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// This here should be the major item looked at when checking for compat
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// from anywhere other than the material system shaders
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DEFCONFIGMETHOD( int, GetDXSupportLevel(), 98 );
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virtual const char *GetShaderDLLName() const = 0;
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virtual bool ReadPixelsFromFrontBuffer() const = 0;
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// Are dx dynamic textures preferred?
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virtual bool PreferDynamicTextures() const = 0;
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DEFCONFIGMETHOD( bool, SupportsHDR(), true );
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virtual bool NeedsAAClamp() const = 0;
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virtual bool NeedsATICentroidHack() const = 0;
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// This is the max dx support level supported by the card
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virtual int GetMaxDXSupportLevel() const = 0;
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// Does the card specify fog color in linear space when sRGBWrites are enabled?
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virtual bool SpecifiesFogColorInLinearSpace() const = 0;
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// Does the card support sRGB reads/writes?
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DEFCONFIGMETHOD( bool, SupportsSRGB(), true );
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DEFCONFIGMETHOD( bool, FakeSRGBWrite(), false );
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DEFCONFIGMETHOD( bool, CanDoSRGBReadFromRTs(), true );
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virtual bool SupportsGLMixedSizeTargets() const = 0;
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virtual bool IsAAEnabled() const = 0; // Is antialiasing being used?
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// NOTE: Anything after this was added after shipping HL2.
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virtual int GetVertexSamplerCount() const = 0;
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virtual int GetMaxVertexTextureDimension() const = 0;
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virtual int MaxTextureDepth() const = 0;
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virtual HDRType_t GetHDRType() const = 0;
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virtual HDRType_t GetHardwareHDRType() const = 0;
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virtual bool SupportsStreamOffset() const = 0;
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virtual int StencilBufferBits() const = 0;
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virtual int MaxViewports() const = 0;
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virtual void OverrideStreamOffsetSupport( bool bOverrideEnabled, bool bEnableSupport ) = 0;
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virtual ShadowFilterMode_t GetShadowFilterMode( bool bForceLowQualityShadows, bool bPS30 ) const = 0;
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virtual int NeedsShaderSRGBConversion() const = 0;
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DEFCONFIGMETHOD( bool, UsesSRGBCorrectBlending(), IsX360() );
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virtual bool HasFastVertexTextures() const = 0;
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virtual int MaxHWMorphBatchCount() const = 0;
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virtual bool SupportsHDRMode( HDRType_t nHDRMode ) const = 0;
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virtual bool GetHDREnabled( void ) const = 0;
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virtual void SetHDREnabled( bool bEnable ) = 0;
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virtual bool SupportsBorderColor( void ) const = 0;
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virtual bool SupportsFetch4( void ) const = 0;
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virtual float GetShadowDepthBias() const = 0;
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virtual float GetShadowSlopeScaleDepthBias() const = 0;
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virtual bool PreferZPrepass() const = 0;
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virtual bool SuppressPixelShaderCentroidHackFixup() const = 0;
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virtual bool PreferTexturesInHWMemory() const = 0;
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virtual bool PreferHardwareSync() const = 0;
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virtual bool ActualHasFastVertexTextures() const = 0;
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virtual bool SupportsShadowDepthTextures( void ) const = 0;
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virtual ImageFormat GetShadowDepthTextureFormat( void ) const = 0;
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virtual ImageFormat GetHighPrecisionShadowDepthTextureFormat( void ) const = 0;
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virtual ImageFormat GetNullTextureFormat( void ) const = 0;
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virtual int GetMinDXSupportLevel() const = 0;
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virtual bool IsUnsupported() const = 0;
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virtual float GetLightMapScaleFactor() const = 0;
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virtual bool SupportsCascadedShadowMapping() const = 0;
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virtual CSMQualityMode_t GetCSMQuality() const = 0;
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virtual bool SupportsBilinearPCFSampling() const = 0;
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virtual CSMShaderMode_t GetCSMShaderMode( CSMQualityMode_t nQualityLevel ) const = 0;
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virtual bool GetCSMAccurateBlending( void ) const = 0;
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virtual void SetCSMAccurateBlending( bool bEnable ) = 0;
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virtual bool SupportsResolveDepth() const = 0;
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virtual bool HasFullResolutionDepthTexture() const = 0;
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// Backward compat for stdshaders
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#if defined ( STDSHADER_DBG_DLL_EXPORT ) || defined( STDSHADER_DX9_DLL_EXPORT )
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inline bool SupportsPixelShaders_2_b() const { return GetDXSupportLevel() >= 92; }
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inline bool SupportsPixelShaders_3_0() const { return GetDXSupportLevel() >= 95; }
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#endif
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inline bool ShouldAlwaysUseShaderModel2bShaders() const { return IsOpenGL(); }
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inline bool PlatformRequiresNonNullPixelShaders() const { return IsOpenGL(); }
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};
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#endif // IMATERIALSYSTEMHARDWARECONFIG_H
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