/
OgreHlms.cpp
3466 lines (2967 loc) · 144 KB
/
OgreHlms.cpp
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/*
-----------------------------------------------------------------------------
This source file is part of OGRE
(Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/
Copyright (c) 2000-2014 Torus Knot Software Ltd
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-----------------------------------------------------------------------------
*/
#include "OgreStableHeaders.h"
#include "OgreHlms.h"
#include "OgreHlmsManager.h"
#include "OgreHighLevelGpuProgramManager.h"
#include "OgreHighLevelGpuProgram.h"
#include "OgreRootLayout.h"
#include "Vao/OgreVaoManager.h"
#include "Vao/OgreVertexArrayObject.h"
#include "Compositor/OgreCompositorShadowNode.h"
#include "Compositor/Pass/PassScene/OgreCompositorPassSceneDef.h"
#include "OgreLight.h"
#include "OgreSceneManager.h"
#include "OgreLogManager.h"
#include "OgreForward3D.h"
#include "OgreCamera.h"
//#include "OgreMovableObject.h"
//#include "OgreRenderable.h"
#include "OgreViewport.h"
#include "OgreDepthBuffer.h"
#include "OgrePixelFormatGpuUtils.h"
#include "OgreLwString.h"
#include "OgreRenderQueue.h"
#include "OgreHlmsListener.h"
#include "OgreBitset.inl"
#include "OgreFileSystem.h"
#include "OgreProfiler.h"
#if OGRE_PLATFORM == OGRE_PLATFORM_APPLE
#include "OSX/macUtils.h"
#endif
#if OGRE_PLATFORM == OGRE_PLATFORM_APPLE_IOS
#include "iOS/macUtils.h"
#endif
#include "Hash/MurmurHash3.h"
#include <fstream>
#if OGRE_ARCH_TYPE == OGRE_ARCHITECTURE_32
#define OGRE_HASH128_FUNC MurmurHash3_x86_128
#else
#define OGRE_HASH128_FUNC MurmurHash3_x64_128
#endif
namespace Ogre
{
const int HlmsBits::HlmsTypeBits = 3;
const int HlmsBits::RenderableBits = 21;
const int HlmsBits::PassBits = 8;
const int HlmsBits::HlmsTypeShift = 32 - HlmsTypeBits;
const int HlmsBits::RenderableShift = HlmsTypeShift - RenderableBits;
const int HlmsBits::PassShift = RenderableShift - PassBits;
const int HlmsBits::RendarebleHlmsTypeMask = (1 << (HlmsTypeBits + RenderableBits)) - 1;
const int HlmsBits::HlmsTypeMask = (1 << HlmsTypeBits) - 1;
const int HlmsBits::RenderableMask = (1 << RenderableBits) - 1;
const int HlmsBits::PassMask = (1 << PassBits) - 1;
//Change per mesh (hash can be cached on the renderable)
const IdString HlmsBaseProp::Skeleton = IdString( "hlms_skeleton" );
const IdString HlmsBaseProp::BonesPerVertex = IdString( "hlms_bones_per_vertex" );
const IdString HlmsBaseProp::Pose = IdString( "hlms_pose" );
const IdString HlmsBaseProp::PoseHalfPrecision = IdString( "hlms_pose_half" );
const IdString HlmsBaseProp::PoseNormals = IdString( "hlms_pose_normals" );
const IdString HlmsBaseProp::Normal = IdString( "hlms_normal" );
const IdString HlmsBaseProp::QTangent = IdString( "hlms_qtangent" );
const IdString HlmsBaseProp::Tangent = IdString( "hlms_tangent" );
const IdString HlmsBaseProp::Tangent4 = IdString( "hlms_tangent4" );
const IdString HlmsBaseProp::Colour = IdString( "hlms_colour" );
const IdString HlmsBaseProp::IdentityWorld = IdString( "hlms_identity_world" );
const IdString HlmsBaseProp::IdentityViewProj = IdString( "hlms_identity_viewproj" );
const IdString HlmsBaseProp::IdentityViewProjDynamic= IdString( "hlms_identity_viewproj_dynamic" );
const IdString HlmsBaseProp::UvCount = IdString( "hlms_uv_count" );
const IdString HlmsBaseProp::UvCount0 = IdString( "hlms_uv_count0" );
const IdString HlmsBaseProp::UvCount1 = IdString( "hlms_uv_count1" );
const IdString HlmsBaseProp::UvCount2 = IdString( "hlms_uv_count2" );
const IdString HlmsBaseProp::UvCount3 = IdString( "hlms_uv_count3" );
const IdString HlmsBaseProp::UvCount4 = IdString( "hlms_uv_count4" );
const IdString HlmsBaseProp::UvCount5 = IdString( "hlms_uv_count5" );
const IdString HlmsBaseProp::UvCount6 = IdString( "hlms_uv_count6" );
const IdString HlmsBaseProp::UvCount7 = IdString( "hlms_uv_count7" );
//Change per frame (grouped together with scene pass)
const IdString HlmsBaseProp::LightsDirectional = IdString( "hlms_lights_directional" );
const IdString HlmsBaseProp::LightsDirNonCaster = IdString( "hlms_lights_directional_non_caster" );
const IdString HlmsBaseProp::LightsPoint = IdString( "hlms_lights_point" );
const IdString HlmsBaseProp::LightsSpot = IdString( "hlms_lights_spot" );
const IdString HlmsBaseProp::LightsAreaApprox = IdString( "hlms_lights_area_approx" );
const IdString HlmsBaseProp::LightsAreaLtc = IdString( "hlms_lights_area_ltc" );
const IdString HlmsBaseProp::LightsAreaTexMask = IdString( "hlms_lights_area_tex_mask" );
const IdString HlmsBaseProp::LightsAttenuation = IdString( "hlms_lights_attenuation" );
const IdString HlmsBaseProp::LightsSpotParams = IdString( "hlms_lights_spotparams" );
const IdString HlmsBaseProp::LightsAreaTexColour= IdString( "hlms_lights_area_tex_colour" );
const IdString HlmsBaseProp::AllPointLights = IdString( "hlms_all_point_lights" );
//Change per scene pass
const IdString HlmsBaseProp::PsoClipDistances = IdString( "hlms_pso_clip_distances" );
const IdString HlmsBaseProp::GlobalClipPlanes = IdString( "hlms_global_clip_planes" );
const IdString HlmsBaseProp::DualParaboloidMapping= IdString( "hlms_dual_paraboloid_mapping" );
const IdString HlmsBaseProp::InstancedStereo = IdString( "hlms_instanced_stereo" );
const IdString HlmsBaseProp::StaticBranchLights = IdString( "hlms_static_branch_lights" );
const IdString HlmsBaseProp::NumShadowMapLights = IdString( "hlms_num_shadow_map_lights" );
const IdString HlmsBaseProp::NumShadowMapTextures= IdString("hlms_num_shadow_map_textures" );
const IdString HlmsBaseProp::PssmSplits = IdString( "hlms_pssm_splits" );
const IdString HlmsBaseProp::PssmBlend = IdString( "hlms_pssm_blend" );
const IdString HlmsBaseProp::PssmFade = IdString( "hlms_pssm_fade" );
const IdString HlmsBaseProp::ShadowCaster = IdString( "hlms_shadowcaster" );
const IdString HlmsBaseProp::ShadowCasterDirectional= IdString( "hlms_shadowcaster_directional" );
const IdString HlmsBaseProp::ShadowCasterPoint = IdString( "hlms_shadowcaster_point" );
const IdString HlmsBaseProp::ShadowUsesDepthTexture= IdString( "hlms_shadow_uses_depth_texture" );
const IdString HlmsBaseProp::RenderDepthOnly = IdString( "hlms_render_depth_only" );
const IdString HlmsBaseProp::FineLightMask = IdString( "hlms_fine_light_mask" );
const IdString HlmsBaseProp::UseUvBaking = IdString( "hlms_use_uv_baking" );
const IdString HlmsBaseProp::UvBaking = IdString( "hlms_uv_baking" );
const IdString HlmsBaseProp::BakeLightingOnly = IdString( "hlms_bake_lighting_only" );
const IdString HlmsBaseProp::GenNormalsGBuf = IdString( "hlms_gen_normals_gbuffer" );
const IdString HlmsBaseProp::PrePass = IdString( "hlms_prepass" );
const IdString HlmsBaseProp::UsePrePass = IdString( "hlms_use_prepass" );
const IdString HlmsBaseProp::UsePrePassMsaa = IdString( "hlms_use_prepass_msaa" );
const IdString HlmsBaseProp::UseSsr = IdString( "hlms_use_ssr" );
const IdString HlmsBaseProp::SsRefractionsAvailable = IdString( "hlms_ss_refractions_available" );
const IdString HlmsBaseProp::EnableVpls = IdString( "hlms_enable_vpls" );
const IdString HlmsBaseProp::ForwardPlus = IdString( "hlms_forwardplus" );
const IdString HlmsBaseProp::ForwardPlusFlipY = IdString( "hlms_forwardplus_flipY" );
const IdString HlmsBaseProp::ForwardPlusDebug = IdString( "hlms_forwardplus_debug" );
const IdString HlmsBaseProp::ForwardPlusFadeAttenRange
= IdString( "hlms_forward_fade_attenuation_range" );
const IdString HlmsBaseProp::ForwardPlusFineLightMask
= IdString( "hlms_forwardplus_fine_light_mask" );
const IdString HlmsBaseProp::ForwardPlusCoversEntireTarget
= IdString("hlms_forwardplus_covers_entire_target");
const IdString HlmsBaseProp::Forward3DNumSlices = IdString( "forward3d_num_slices" );
const IdString HlmsBaseProp::FwdClusteredWidthxHeight = IdString( "fwd_clustered_width_x_height" );
const IdString HlmsBaseProp::FwdClusteredWidth = IdString( "fwd_clustered_width" );
const IdString HlmsBaseProp::FwdClusteredLightsPerCell = IdString( "fwd_clustered_lights_per_cell" );
const IdString HlmsBaseProp::EnableDecals = IdString( "hlms_enable_decals" );
const IdString HlmsBaseProp::FwdPlusDecalsSlotOffset = IdString( "hlms_forwardplus_decals_slot_offset" );
const IdString HlmsBaseProp::DecalsDiffuse = IdString( "hlms_decals_diffuse" );
const IdString HlmsBaseProp::DecalsNormals = IdString( "hlms_decals_normals" );
const IdString HlmsBaseProp::DecalsEmissive = IdString( "hlms_decals_emissive" );
const IdString HlmsBaseProp::FwdPlusCubemapSlotOffset= IdString( "hlms_forwardplus_cubemap_slot_offset" );
const IdString HlmsBaseProp::Forward3D = IdString( "forward3d" );
const IdString HlmsBaseProp::ForwardClustered = IdString( "forward_clustered" );
const IdString HlmsBaseProp::VPos = IdString( "hlms_vpos" );
const IdString HlmsBaseProp::ScreenPosInt = IdString( "hlms_screen_pos_int" );
const IdString HlmsBaseProp::ScreenPosUv = IdString( "hlms_screen_pos_uv" );
const IdString HlmsBaseProp::VertexId = IdString( "hlms_vertex_id" );
//Change per material (hash can be cached on the renderable)
const IdString HlmsBaseProp::AlphaTest = IdString( "alpha_test" );
const IdString HlmsBaseProp::AlphaTestShadowCasterOnly = IdString( "alpha_test_shadow_caster_only" );
const IdString HlmsBaseProp::AlphaBlend = IdString( "hlms_alphablend" );
const IdString HlmsBaseProp::AlphaToCoverage = IdString( "hlms_alpha_to_coverage" );
const IdString HlmsBaseProp::ScreenSpaceRefractions = IdString( "hlms_screen_space_refractions" );
const IdString HlmsBaseProp::NoReverseDepth = IdString( "hlms_no_reverse_depth" );
const IdString HlmsBaseProp::ReadOnlyIsTex = IdString( "hlms_readonly_is_tex" );
const IdString HlmsBaseProp::Syntax = IdString( "syntax" );
const IdString HlmsBaseProp::Hlsl = IdString( "hlsl" );
const IdString HlmsBaseProp::Glsl = IdString( "glsl" );
const IdString HlmsBaseProp::Glsles = IdString( "glsles" );
const IdString HlmsBaseProp::Glslvk = IdString( "glslvk" );
const IdString HlmsBaseProp::Hlslvk = IdString( "hlslvk" );
const IdString HlmsBaseProp::Metal = IdString( "metal" );
const IdString HlmsBaseProp::GL3Plus = IdString( "GL3+" );
const IdString HlmsBaseProp::GLES = IdString( "GLES" );
const IdString HlmsBaseProp::iOS = IdString( "iOS" );
const IdString HlmsBaseProp::macOS = IdString( "macOS" );
const IdString HlmsBaseProp::HighQuality = IdString( "hlms_high_quality" );
const IdString HlmsBaseProp::FastShaderBuildHack= IdString( "fast_shader_build_hack" );
const IdString HlmsBaseProp::TexGather = IdString( "hlms_tex_gather" );
const IdString HlmsBaseProp::DisableStage = IdString( "hlms_disable_stage" );
const IdString HlmsBasePieces::AlphaTestCmpFunc = IdString( "alpha_test_cmp_func" );
//GL extensions
const IdString HlmsBaseProp::GlAmdTrinaryMinMax = IdString( "hlms_amd_trinary_minmax" );
const IdString *HlmsBaseProp::UvCountPtrs[8] =
{
&HlmsBaseProp::UvCount0,
&HlmsBaseProp::UvCount1,
&HlmsBaseProp::UvCount2,
&HlmsBaseProp::UvCount3,
&HlmsBaseProp::UvCount4,
&HlmsBaseProp::UvCount5,
&HlmsBaseProp::UvCount6,
&HlmsBaseProp::UvCount7
};
const IdString HlmsPsoProp::Macroblock = IdString( "PsoMacroblock" );
const IdString HlmsPsoProp::Blendblock = IdString( "PsoBlendblock" );
const IdString HlmsPsoProp::InputLayoutId = IdString( "InputLayoutId" );
const String ShaderFiles[] = { "VertexShader_vs", "PixelShader_ps", "GeometryShader_gs",
"HullShader_hs", "DomainShader_ds" };
const String PieceFilePatterns[] = { "piece_vs", "piece_ps", "piece_gs", "piece_hs", "piece_ds" };
//Must be sorted from best to worst
const String BestD3DShaderTargets[NumShaderTypes][5] =
{
{
"vs_5_0", "vs_4_1", "vs_4_0",
"vs_4_0_level_9_3", "vs_4_0_level_9_1"
},
{
"ps_5_0", "ps_4_1", "ps_4_0",
"ps_4_0_level_9_3", "ps_4_0_level_9_1"
},
{
"gs_5_0", "gs_4_1", "gs_4_0", "placeholder", "placeholder"
},
{
"hs_5_0", "hs_4_1", "hs_4_0", "placeholder", "placeholder"
},
{
"ds_5_0", "ds_4_1", "ds_4_0", "placeholder", "placeholder"
},
};
HlmsListener c_defaultListener;
Hlms::Hlms( HlmsTypes type, const String &typeName, Archive *dataFolder,
ArchiveVec *libraryFolders ) :
mDataFolder( dataFolder ),
mHlmsManager( 0 ),
mLightGatheringMode( LightGatherForward ),
mNumLightsLimit( 0u ),
mNumAreaApproxLightsLimit( 1u ),
mNumAreaLtcLightsLimit( 1u ),
mAreaLightsGlobalLightListStart( 0u ),
mRealNumAreaApproxLightsWithMask( 0u ),
mRealNumAreaApproxLights( 0u ),
mRealNumAreaLtcLights( 0u ),
mListener( &c_defaultListener ),
mRenderSystem( 0 ),
mShaderProfile( "unset!" ),
mShaderSyntax( "unset!" ),
mShaderFileExt( "unset!" ),
#if OGRE_DEBUG_MODE >= OGRE_DEBUG_MEDIUM
mDebugOutput( true ),
#else
mDebugOutput( false ),
#endif
#if OGRE_DEBUG_MODE >= OGRE_DEBUG_HIGH
mDebugOutputProperties( true ),
#else
mDebugOutputProperties( false ),
#endif
mHighQuality( false ),
mFastShaderBuildHack( false ),
mDefaultDatablock( 0 ),
mType( type ),
mTypeName( typeName ),
mTypeNameStr( typeName )
{
memset( mShaderTargets, 0, sizeof(mShaderTargets) );
if( libraryFolders )
{
ArchiveVec::const_iterator itor = libraryFolders->begin();
ArchiveVec::const_iterator end = libraryFolders->end();
while( itor != end )
{
Library library;
library.dataFolder = *itor;
mLibrary.push_back( library );
++itor;
}
}
enumeratePieceFiles();
#if OGRE_PLATFORM == OGRE_PLATFORM_APPLE || OGRE_PLATFORM == OGRE_PLATFORM_APPLE_IOS
mOutputPath = macCachePath() + '/';
#endif
#if OGRE_PLATFORM == OGRE_PLATFORM_WINRT
mOutputPath = fileSystemPathToString(Windows::Storage::ApplicationData::Current->TemporaryFolder->Path->Data());
#endif
}
//-----------------------------------------------------------------------------------
Hlms::~Hlms()
{
clearShaderCache();
_destroyAllDatablocks();
if( mHlmsManager && mType < HLMS_MAX )
{
mHlmsManager->unregisterHlms( mType );
mHlmsManager = 0;
}
}
//-----------------------------------------------------------------------------------
static void hashFileConcatenate( DataStreamPtr &inFile, FastArray<uint8> &fileContents )
{
const size_t fileSize = inFile->size();
fileContents.resize( fileSize + sizeof(uint64) * 2u );
uint64 hashResult[2];
memset( hashResult, 0, sizeof(hashResult) );
inFile->read( fileContents.begin() + sizeof(uint64) * 2u, fileSize );
OGRE_HASH128_FUNC( fileContents.begin(), fileContents.size(), IdString::Seed, hashResult );
memcpy( fileContents.begin(), hashResult, sizeof(uint64) * 2u );
}
//-----------------------------------------------------------------------------------
void Hlms::hashPieceFiles( Archive *archive, const StringVector &pieceFiles,
FastArray<uint8> &fileContents ) const
{
StringVector::const_iterator itor = pieceFiles.begin();
StringVector::const_iterator end = pieceFiles.end();
while( itor != end )
{
//Only open piece files with current render system extension
const String::size_type extPos0 = itor->find( mShaderFileExt );
const String::size_type extPos1 = itor->find( ".any" );
if( extPos0 == itor->size() - mShaderFileExt.size() ||
extPos1 == itor->size() - 4u )
{
DataStreamPtr inFile = archive->open( *itor );
hashFileConcatenate( inFile, fileContents );
}
++itor;
}
}
//-----------------------------------------------------------------------------------
void Hlms::getTemplateChecksum( uint64 outHash[2] ) const
{
FastArray<uint8> fileContents;
fileContents.resize( sizeof(uint64) * 2u, 0 );
for( size_t i=0; i<NumShaderTypes; ++i )
{
const String filename = ShaderFiles[i] + mShaderFileExt;
if( mDataFolder->exists( filename ) )
{
//Library piece files first
LibraryVec::const_iterator itor = mLibrary.begin();
LibraryVec::const_iterator end = mLibrary.end();
while( itor != end )
{
hashPieceFiles( itor->dataFolder, itor->pieceFiles[i], fileContents );
++itor;
}
//Main piece files
hashPieceFiles( mDataFolder, mPieceFiles[i], fileContents );
//The shader file
DataStreamPtr inFile = mDataFolder->open( filename );
hashFileConcatenate( inFile, fileContents );
}
}
memcpy( outHash, fileContents.begin(), sizeof(uint64) * 2u );
}
//-----------------------------------------------------------------------------------
void Hlms::setCommonProperties(void)
{
uint16 numWorldTransforms = 2;
//bool castShadows = true;
setProperty( HlmsBaseProp::Skeleton, numWorldTransforms > 1 );
setProperty( HlmsBaseProp::UvCount, 2 );
setProperty( "true", 1 );
setProperty( "false", 0 );
setProperty( HlmsBaseProp::DualParaboloidMapping, 0 );
setProperty( HlmsBaseProp::Normal, 1 );
setProperty( HlmsBaseProp::UvCount0, 2 );
setProperty( HlmsBaseProp::UvCount1, 4 );
setProperty( HlmsBaseProp::BonesPerVertex, 4 );
setProperty( HlmsBaseProp::PssmSplits, 3 );
setProperty( HlmsBaseProp::PssmBlend, 1 );
setProperty( HlmsBaseProp::PssmFade, 1 );
setProperty( HlmsBaseProp::ShadowCaster, 0 );
setProperty( HlmsBaseProp::LightsDirectional, 1 );
setProperty( HlmsBaseProp::LightsDirNonCaster, 1 );
setProperty( HlmsBaseProp::LightsPoint, 2 );
setProperty( HlmsBaseProp::LightsSpot, 3 );
setProperty( HlmsBaseProp::Pose, 0 );
setProperty( HlmsBaseProp::PoseHalfPrecision, 0 );
setProperty( HlmsBaseProp::PoseNormals, 0 );
}
//-----------------------------------------------------------------------------------
void Hlms::enumeratePieceFiles(void)
{
if( !mDataFolder )
return; //Some Hlms implementations may not use template files at all
bool hasValidFile = false;
//Check this folder can at least generate one valid type of shader.
for( size_t i=0; i<NumShaderTypes; ++i )
{
//Probe both types since this may be called before we know what RS to use.
const String filename = ShaderFiles[i];
hasValidFile |= mDataFolder->exists( filename + ".glsl" );
hasValidFile |= mDataFolder->exists( filename + ".hlsl" );
hasValidFile |= mDataFolder->exists( filename + ".metal" );
hasValidFile |= mDataFolder->exists( filename + ".any" );
}
if( !hasValidFile )
{
OGRE_EXCEPT( Exception::ERR_FILE_NOT_FOUND,
"Data folder provided contains no valid template shader files. "
"Did you provide the right folder location? Check you have the "
"right read pemissions. Folder: " + mDataFolder->getName(),
"Hlms::Hlms" );
}
enumeratePieceFiles( mDataFolder, mPieceFiles );
LibraryVec::iterator itor = mLibrary.begin();
LibraryVec::iterator end = mLibrary.end();
while( itor != end )
{
bool foundPieceFiles = enumeratePieceFiles( itor->dataFolder, itor->pieceFiles );
if( !foundPieceFiles )
{
LogManager::getSingleton().logMessage(
"HLMS Library path '" + itor->dataFolder->getName() +
"' has no piece files. Are you sure you provided "
"the right path with read access?" );
}
++itor;
}
}
//-----------------------------------------------------------------------------------
bool Hlms::enumeratePieceFiles( Archive *dataFolder, StringVector *pieceFiles )
{
bool retVal = false;
StringVectorPtr stringVectorPtr = dataFolder->list( false, false );
StringVector stringVectorLowerCase( *stringVectorPtr );
{
StringVector::iterator itor = stringVectorLowerCase.begin();
StringVector::iterator end = stringVectorLowerCase.end();
while( itor != end )
{
std::transform( itor->begin(), itor->end(), itor->begin(), ::tolower );
++itor;
}
}
for( size_t i=0; i<NumShaderTypes; ++i )
{
StringVector::const_iterator itLowerCase = stringVectorLowerCase.begin();
StringVector::const_iterator itor = stringVectorPtr->begin();
StringVector::const_iterator end = stringVectorPtr->end();
while( itor != end )
{
if( itLowerCase->find( PieceFilePatterns[i] ) != String::npos ||
itLowerCase->find( "piece_all" ) != String::npos )
{
retVal = true;
pieceFiles[i].push_back( *itor );
}
++itLowerCase;
++itor;
}
//Enumeration order depends on OS and filesystem. Ensure deterministic alphabetical order.
std::sort( pieceFiles[i].begin(), pieceFiles[i].end() );
}
return retVal;
}
//-----------------------------------------------------------------------------------
void Hlms::setProperty( IdString key, int32 value )
{
HlmsProperty p( key, value );
HlmsPropertyVec::iterator it = std::lower_bound( mSetProperties.begin(), mSetProperties.end(),
p, OrderPropertyByIdString );
if( it == mSetProperties.end() || it->keyName != p.keyName )
mSetProperties.insert( it, p );
else
*it = p;
}
//-----------------------------------------------------------------------------------
int32 Hlms::getProperty( IdString key, int32 defaultVal ) const
{
HlmsProperty p( key, 0 );
HlmsPropertyVec::const_iterator it = std::lower_bound( mSetProperties.begin(),
mSetProperties.end(),
p, OrderPropertyByIdString );
if( it != mSetProperties.end() && it->keyName == p.keyName )
defaultVal = it->value;
return defaultVal;
}
//-----------------------------------------------------------------------------------
void Hlms::unsetProperty( IdString key )
{
HlmsProperty p( key, 0 );
HlmsPropertyVec::iterator it = std::lower_bound( mSetProperties.begin(), mSetProperties.end(),
p, OrderPropertyByIdString );
if( it != mSetProperties.end() && it->keyName == p.keyName )
mSetProperties.erase( it );
}
//-----------------------------------------------------------------------------------
void Hlms::setProperty( HlmsPropertyVec &properties, IdString key, int32 value )
{
HlmsProperty p( key, value );
HlmsPropertyVec::iterator it = std::lower_bound( properties.begin(), properties.end(),
p, OrderPropertyByIdString );
if( it == properties.end() || it->keyName != p.keyName )
properties.insert( it, p );
else
*it = p;
}
//-----------------------------------------------------------------------------------
int32 Hlms::getProperty( const HlmsPropertyVec &properties, IdString key, int32 defaultVal )
{
HlmsProperty p( key, 0 );
HlmsPropertyVec::const_iterator it = std::lower_bound( properties.begin(),
properties.end(),
p, OrderPropertyByIdString );
if( it != properties.end() && it->keyName == p.keyName )
defaultVal = it->value;
return defaultVal;
}
//-----------------------------------------------------------------------------------
bool Hlms::findBlockEnd( SubStringRef &outSubString, bool &syntaxError, bool allowsElse )
{
bool isElse = false;
const char *blockNames[] =
{
"foreach",
"property",
"piece",
"else"
};
cbitset32<2048> allowedElses;
if( allowsElse )
allowedElses.set( 0 );
String::const_iterator it = outSubString.begin();
String::const_iterator en = outSubString.end();
int nesting = 0;
while( it != en && nesting >= 0 )
{
if( *it == '@' )
{
SubStringRef subString( &outSubString.getOriginalBuffer(), it + 1 );
bool start = subString.startWith( "end" );
if( start )
{
--nesting;
it += sizeof( "end" ) - 1;
continue;
}
else
{
if( allowsElse )
start = subString.startWith( "else" );
if( start )
{
if( !allowedElses.test( static_cast<size_t>( nesting ) ) )
{
syntaxError = true;
printf( "Unexpected @else while looking for @end\nNear: '%s'\n",
&(*subString.begin()) );
}
if( nesting == 0 )
{
//Decrement nesting so that we're out and tell caller we went from
//@property() through @else. Caller will later have to go from
//@else to @end
isElse = true;
--nesting;
}
else
{
//Do not decrease 'nesting', as we now need to look for "@end" but
//unset allowedElses, so that we do not allow two consecutive @else
allowedElses.setValue( static_cast<size_t>( nesting ), 0u );
}
it += sizeof( "else" ) - 1;
continue;
}
else
{
for( size_t i=0; i<sizeof( blockNames ) / sizeof( char* ); ++i )
{
bool startBlock = subString.startWith( blockNames[i] );
if( startBlock )
{
it = subString.begin() + strlen( blockNames[i] );
if( i == 3 )
{
//Do not increase 'nesting' for "@else"
if( !allowedElses.test( static_cast<size_t>( nesting ) ) )
{
syntaxError = true;
printf( "Unexpected @else while looking for @end\nNear: '%s'\n",
&(*subString.begin()) );
}
}
else
{
++nesting;
}
allowedElses.setValue( static_cast<size_t>( nesting ), i == 1u );
break;
}
}
}
}
}
++it;
}
assert( nesting >= -1 );
if( it != en && nesting < 0 )
{
int keywordLength = (isElse ? sizeof( "else" ) : sizeof( "end" )) - 1;
outSubString.setEnd( it - outSubString.getOriginalBuffer().begin() - keywordLength );
}
else
{
syntaxError = true;
char tmpData[64];
memset( tmpData, 0, sizeof(tmpData) );
strncpy( tmpData, &(*outSubString.begin()),
std::min<size_t>( 63u, outSubString.getSize() ) );
printf( "Syntax Error at line %lu: start block (e.g. @foreach; @property) "
"without matching @end\nNear: '%s'\n", calculateLineCount( outSubString ),
tmpData );
}
return isElse;
}
//-----------------------------------------------------------------------------------
bool Hlms::evaluateExpression( SubStringRef &outSubString, bool &outSyntaxError ) const
{
size_t expEnd = evaluateExpressionEnd( outSubString );
if( expEnd == String::npos )
{
outSyntaxError = true;
return false;
}
SubStringRef subString( &outSubString.getOriginalBuffer(), outSubString.getStart(),
outSubString.getStart() + expEnd );
outSubString = SubStringRef( &outSubString.getOriginalBuffer(),
outSubString.getStart() + expEnd + 1 );
bool textStarted = false;
bool syntaxError = false;
bool nextExpressionNegates = false;
std::vector<Expression*> expressionParents;
ExpressionVec outExpressions;
outExpressions.clear();
outExpressions.resize( 1 );
Expression *currentExpression = &outExpressions.back();
String::const_iterator it = subString.begin();
String::const_iterator en = subString.end();
while( it != en && !syntaxError )
{
char c = *it;
if( c == '(' )
{
currentExpression->children.push_back( Expression() );
expressionParents.push_back( currentExpression );
currentExpression->children.back().negated = nextExpressionNegates;
textStarted = false;
nextExpressionNegates = false;
currentExpression = ¤tExpression->children.back();
}
else if( c == ')' )
{
if( expressionParents.empty() )
syntaxError = true;
else
{
currentExpression = expressionParents.back();
expressionParents.pop_back();
}
textStarted = false;
}
else if( c == ' ' || c == '\t' || c == '\n' || c == '\r' )
{
textStarted = false;
}
else if( c == '!' &&
//Avoid treating "!=" as a negation of variable.
( (it + 1) == en || *(it + 1) != '=' ) )
{
nextExpressionNegates = true;
}
else
{
if( !textStarted )
{
textStarted = true;
currentExpression->children.push_back( Expression() );
currentExpression->children.back().negated = nextExpressionNegates;
}
if( c == '&' || c == '|' ||
c == '=' || c == '<' || c == '>' ||
c == '!' /* can only mean "!=" */ )
{
if( currentExpression->children.empty() || nextExpressionNegates )
{
syntaxError = true;
}
else if( !currentExpression->children.back().value.empty() &&
c != *(currentExpression->children.back().value.end()-1) &&
c != '=' )
{
currentExpression->children.push_back( Expression() );
}
}
currentExpression->children.back().value.push_back( c );
nextExpressionNegates = false;
}
++it;
}
bool retVal = false;
if( !expressionParents.empty() )
syntaxError = true;
if( !syntaxError )
retVal = evaluateExpressionRecursive( outExpressions, syntaxError ) != 0;
if( syntaxError )
printf( "Syntax Error at line %lu\n", calculateLineCount( subString ) );
outSyntaxError = syntaxError;
return retVal;
}
//-----------------------------------------------------------------------------------
int32 Hlms::evaluateExpressionRecursive( ExpressionVec &expression, bool &outSyntaxError ) const
{
bool syntaxError = outSyntaxError;
bool lastExpWasOperator = true;
ExpressionVec::iterator itor = expression.begin();
ExpressionVec::iterator end = expression.end();
while( itor != end )
{
Expression &exp = *itor;
if( exp.value == "&&" )
exp.type = EXPR_OPERATOR_AND;
else if( exp.value == "||" )
exp.type = EXPR_OPERATOR_OR;
else if( exp.value == "<" )
exp.type = EXPR_OPERATOR_LE;
else if( exp.value == "<=" )
exp.type = EXPR_OPERATOR_LEEQ;
else if( exp.value == "==" )
exp.type = EXPR_OPERATOR_EQ;
else if( exp.value == "!=" )
exp.type = EXPR_OPERATOR_NEQ;
else if( exp.value == ">" )
exp.type = EXPR_OPERATOR_GR;
else if( exp.value == ">=" )
exp.type = EXPR_OPERATOR_GREQ;
else if( !exp.children.empty() )
exp.type = EXPR_OBJECT;
else
exp.type = EXPR_VAR;
if( ( exp.isOperator() && lastExpWasOperator) ||
(!exp.isOperator() && !lastExpWasOperator) )
{
syntaxError = true;
printf( "Unrecognized token '%s'", exp.value.c_str() );
}
else
{
lastExpWasOperator = exp.isOperator();
}
++itor;
}
//If we don't check 'expression.size() > 3u' here, we can end up in infinite recursion
//later on (because operators get turned into EXPR_OBJECT and thus the object
//is evaluated recusrively, and turned again into EXPR_OBJECT)
if( !syntaxError && expression.size() > 3u )
{
//We will now enclose "a < b" into "(a < b)" other wise statements like these:
//a && b < c will be parsed as (a && b) < c which is completely counterintuitive.
//We need expression.size() > 3 which is guaranteed because if back nor front
//are neither operators and we can't have two operators in a row, then they can
//only be in the middle, or there is no operator at all.
itor = expression.begin() + 1;
end = expression.end();
while( itor != end )
{
if( itor->type >= EXPR_OPERATOR_LE && itor->type <= EXPR_OPERATOR_GREQ )
{
//We need to merge n-1, n, n+1 into:
// (n-1)' = EXPR_OBJECT with 3 children:
// n-1, n, n+1
//and then remove both n & n+1.
itor->children.resize( 3 );
itor->children[1].type = itor->type;
itor->children[1].value.swap( itor->value );
itor->children[0].swap( *(itor - 1) );
itor->children[2].swap( *(itor + 1) );
itor->type = EXPR_OBJECT;
(itor - 1)->swap( *itor );
itor = expression.erase( itor, itor + 2 );
end = expression.end();
}
else
{
++itor;
}
}
}
//Evaluate the individual properties.
itor = expression.begin();
while( itor != end && !syntaxError )
{
Expression &exp = *itor;
if( exp.type == EXPR_VAR )
{
char *endPtr;
exp.result = strtol( exp.value.c_str(), &endPtr, 10 );
if( exp.value.c_str() == endPtr )
{
//This isn't a number. Let's try if it's a variable
exp.result = getProperty( exp.value );
}
lastExpWasOperator = false;
}
else
{
exp.result = evaluateExpressionRecursive( exp.children, syntaxError );
lastExpWasOperator = false;
}
++itor;
}
//Perform operations between the different properties.
int32 retVal = 1;
if( !syntaxError )
{
itor = expression.begin();
ExpressionType nextOperation = EXPR_VAR;
while( itor != end )
{
int32 result = itor->negated ? !itor->result : itor->result;
switch( nextOperation )
{
case EXPR_OPERATOR_OR: retVal = (retVal != 0) | (result != 0); break;
case EXPR_OPERATOR_AND: retVal = (retVal != 0) & (result != 0); break;
case EXPR_OPERATOR_LE: retVal = retVal < result; break;
case EXPR_OPERATOR_LEEQ: retVal = retVal <= result; break;
case EXPR_OPERATOR_EQ: retVal = retVal == result; break;
case EXPR_OPERATOR_NEQ: retVal = retVal != result; break;
case EXPR_OPERATOR_GR: retVal = retVal > result; break;
case EXPR_OPERATOR_GREQ: retVal = retVal >= result; break;
case EXPR_OBJECT:
case EXPR_VAR:
if( !itor->isOperator() )
retVal = result;
break;
}
nextOperation = itor->type;
++itor;
}
}
outSyntaxError = syntaxError;
return retVal;
}
//-----------------------------------------------------------------------------------
size_t Hlms::evaluateExpressionEnd( const SubStringRef &outSubString )
{
String::const_iterator it = outSubString.begin();
String::const_iterator en = outSubString.end();
int nesting = 0;
while( it != en && nesting >= 0 )
{
if( *it == '(' )
++nesting;
else if( *it == ')' )
--nesting;
++it;
}
assert( nesting >= -1 );
size_t retVal = String::npos;
if( it != en && nesting < 0 )
{
retVal = it - outSubString.begin() - 1;
}
else
{
printf( "Syntax Error at line %lu: opening parenthesis without matching closure\n",
calculateLineCount( outSubString ) );
}