Shaders manager - Built-in shaders
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41e9fdbd00
commit
8e73f81ecd
2 changed files with 92 additions and 9 deletions
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@ -605,6 +605,19 @@ T_ShaderProgram T_ShaderManager::program(
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return T_ShaderProgram( *programIndex_.get( name ) + 1 );
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}
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T_ShaderProgram T_ShaderManager::program(
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T_String const& name ,
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const E_ShaderType type ,
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char const* const source )
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{
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assert( name && name.startsWith( "*" ) );
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assert( type != E_ShaderType::__COUNT__ );
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loadBuiltinProgram( name , type , source );
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assert( programIndex_.contains( name ) );
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assert( programs_[ *programIndex_.get( name ) ].name == name );
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return T_ShaderProgram( *programIndex_.get( name ) + 1 );
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}
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T_ShaderPipeline T_ShaderManager::pipeline(
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std::initializer_list< T_String > shaders )
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{
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@ -753,6 +766,7 @@ void T_ShaderManager::update( )
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updates_.clear( );
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}
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/*----------------------------------------------------------------------------*/
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void T_ShaderManager::loadProgram(
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T_String const& pipeline ,
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@ -785,6 +799,16 @@ void T_ShaderManager::loadProgram(
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}
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}
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void T_ShaderManager::loadBuiltinProgram(
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T_String const& name ,
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const E_ShaderType type ,
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char const* const source )
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{
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if ( !useExistingProgram( name ) ) {
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initProgramRecord( name , type , source );
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}
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}
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bool T_ShaderManager::useExistingProgram(
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T_String const& name )
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{
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@ -796,6 +820,7 @@ bool T_ShaderManager::useExistingProgram(
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return true;
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}
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/*----------------------------------------------------------------------------*/
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uint32_t T_ShaderManager::newProgramRecord( )
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{
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@ -812,14 +837,20 @@ uint32_t T_ShaderManager::newProgramRecord( )
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}
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T_ShaderManager::T_Program_& T_ShaderManager::initProgramRecord(
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T_String const& name )
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T_String const& name ,
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const E_ShaderType type ,
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char const* const source )
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{
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const uint32_t index( newProgramRecord( ) );
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auto& program( programs_[ index ] );
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programIndex_.add( name , index );
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program.name = name;
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program.id = 0;
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initProgram( program );
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if ( type == E_ShaderType::__COUNT__ || source == nullptr ) {
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initProgram( program );
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} else {
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initBuiltinProgram( program , type , source );
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}
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T_StringBuilder sb;
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for ( auto const& e : program.code.errors ) {
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@ -829,9 +860,14 @@ T_ShaderManager::T_Program_& T_ShaderManager::initProgramRecord(
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sb << '\0';
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printf( "%s" , sb.data( ) );
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if ( type != E_ShaderType::__COUNT__ && source != nullptr && program.id == 0 ) {
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std::abort( );
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}
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return program;
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}
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/*----------------------------------------------------------------------------*/
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T_ShaderInput const* T_ShaderManager::getInput(
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T_String const& name )
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@ -851,6 +887,7 @@ T_ShaderInput const* T_ShaderManager::getInput(
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return inputs_.get( name )->get( );
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}
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/*----------------------------------------------------------------------------*/
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void T_ShaderManager::dereferencePipeline(
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T_String const& id )
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@ -876,7 +913,6 @@ void T_ShaderManager::dereferencePipeline(
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pipelines_.remove( pipeline.idString );
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}
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void T_ShaderManager::dereferenceProgram(
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const uint32_t index ,
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T_String const& pipeline )
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@ -893,7 +929,6 @@ void T_ShaderManager::dereferenceProgram(
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programIndex_.remove( program.name );
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}
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void T_ShaderManager::dereferenceProgram(
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const uint32_t index )
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{
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@ -907,6 +942,7 @@ void T_ShaderManager::dereferenceProgram(
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programIndex_.remove( program.name );
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}
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/*----------------------------------------------------------------------------*/
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void T_ShaderManager::initPipeline(
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T_Pipeline_& pipeline ) const
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@ -996,8 +1032,33 @@ void T_ShaderManager::initProgram(
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if ( !( built && code.errors.empty( ) ) ) {
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return;
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}
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buildProgram( program );
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}
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void T_ShaderManager::initBuiltinProgram(
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T_Program_& program ,
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E_ShaderType type ,
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char const* source )
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{
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auto name( program.name );
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printf( "init built-in program %s\n" ,
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program.name.substr( 1 ).toOSString( ).data( ) );
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program.code.code << source << '\0';
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program.code.type = type;
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program.code.counts.add( UINT32_MAX );
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program.code.starts.add( 0 );
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program.code.sources.add( program.name );
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buildProgram( program );
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}
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void T_ShaderManager::buildProgram(
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T_Program_& program )
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{
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// Try to compile the program
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auto& code( program.code );
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auto const& name( program.name );
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char const* const list[] = {
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program.code.code.data( )
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};
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@ -1039,6 +1100,8 @@ void T_ShaderManager::initProgram(
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}
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}
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/*----------------------------------------------------------------------------*/
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void T_ShaderManager::parseGLSLError(
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T_ShaderCode& code ,
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char const* errorLine )
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@ -1065,6 +1128,8 @@ void T_ShaderManager::parseGLSLError(
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errorLine );
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}
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/*----------------------------------------------------------------------------*/
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void T_ShaderManager::programUpdated(
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T_String const& name )
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{
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@ -1120,15 +1185,17 @@ void T_ShaderManager::makeUI( )
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Begin( "Shaders" , &uiEnabled_ , ImGuiWindowFlags_NoCollapse );
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const auto n( std::count_if( programs_.begin( ) , programs_.end( ) ,
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[]( auto const& p ) {
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return !p.plReferences.empty( ) || p.saReferences != 0;
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} ) );
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[]( auto const& p ) {
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return ( !p.plReferences.empty( ) || p.saReferences != 0 )
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&& !p.name.startsWith( "*" );
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} ) );
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std::vector< size_t > indices;
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const auto rn = programs_.size( );
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for ( auto i = 0u ; i < rn ; i ++ ) {
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auto const& p( programs_[ i ] );
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if ( !p.plReferences.empty( ) || p.saReferences ) {
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if ( ( !p.plReferences.empty( ) || p.saReferences )
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&& !p.name.startsWith( "*" ) ) {
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indices.push_back( i );
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}
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}
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@ -156,7 +156,13 @@ struct T_ShaderManager
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T_ShaderManager( ) noexcept;
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// Build / get a program based on its name
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T_ShaderProgram program( T_String const& name );
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// Build a program from its source code
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T_ShaderProgram program( T_String const& name ,
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E_ShaderType type ,
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char const* source );
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T_ShaderPipeline pipeline(
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std::initializer_list< T_String > shaders );
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T_ShaderPipeline pipeline(
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@ -225,11 +231,17 @@ struct T_ShaderManager
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// Load/use existing program for standalone use
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void loadProgram( T_String const& name );
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void loadBuiltinProgram(
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T_String const& name ,
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E_ShaderType type ,
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char const* source );
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bool useExistingProgram( T_String const& name );
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// Program management
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T_Program_& initProgramRecord( // Init management data
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T_String const& record );
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T_String const& record ,
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E_ShaderType type = E_ShaderType::__COUNT__ ,
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char const* source = nullptr );
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uint32_t newProgramRecord( ); // Allocate entry in index
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T_ShaderInput const* getInput(
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@ -244,6 +256,10 @@ struct T_ShaderManager
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void initPipeline( T_Pipeline_& pipeline ) const;
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void initProgram( T_Program_& program );
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void initBuiltinProgram( T_Program_& program ,
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E_ShaderType type ,
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char const* source );
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void buildProgram( T_Program_& program );
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void parseGLSLError(
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T_ShaderCode& code ,
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