| 1 | // Copyright (C) 2014 ChaosForge Ltd
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| 2 | // http://chaosforge.org/
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| 3 | //
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| 4 | // This file is part of NV Libraries.
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| 5 | // For conditions of distribution and use, see copyright notice in nv.hh
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| 6 |
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| 7 | #include "nv/engine/program_manager.hh"
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| 8 | #include "nv/core/range.hh"
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| 9 | #include "nv/lua/lua_nova.hh"
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| 10 |
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| 11 | nv::program_manager::program_manager( context* a_context ) : m_context( a_context )
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| 12 | {
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| 13 | m_vertex_head = a_context->get_device()->get_shader_header();
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| 14 | m_fragment_head = a_context->get_device()->get_shader_header();
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| 15 | }
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| 16 |
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| 17 | nv::resource_id nv::program_manager::load_resource( lua::table_guard& table )
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| 18 | {
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| 19 | NV_LOG( LOG_DEBUG, table.get_string("id") );
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| 20 | std::string vsource;
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| 21 | std::string fsource;
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| 22 | std::string csource;
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| 23 | if ( table.is_table("common") )
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| 24 | {
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| 25 | lua::table_guard common( table, "common" );
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| 26 | load_source( common, csource, "" );
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| 27 | }
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| 28 | {
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| 29 | lua::table_guard vtable( table, "vertex" );
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| 30 | load_source( vtable, vsource, m_vertex_head+"\n"+csource+"\n");
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| 31 | }
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| 32 | {
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| 33 | lua::table_guard ftable( table, "fragment" );
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| 34 | load_source( ftable, fsource, m_fragment_head+"\n"+csource+"\n" );
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| 35 | }
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| 36 |
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| 37 | nv::program program = m_context->get_device()->create_program( vsource, fsource );
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| 38 | return add( program );
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| 39 | }
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| 40 |
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| 41 | void nv::program_manager::release( program p )
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| 42 | {
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| 43 | m_context->get_device()->release( p );
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| 44 | }
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| 45 |
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| 46 | void nv::program_manager::load_source( lua::table_guard& table, string& out, const string& append )
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| 47 | {
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| 48 | out = append;
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| 49 | if ( table.is_string( "files" ) )
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| 50 | {
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| 51 | out += nv::slurp( table.get_std_string( "files" ) );
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| 52 | }
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| 53 | else if ( table.is_table( "files" ) )
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| 54 | {
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| 55 | lua::table_guard inctable( table, "files" );
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| 56 | uint32 count = inctable.get_size();
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| 57 | for ( uint32 i = 1; i <= count; ++i )
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| 58 | {
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| 59 | std::string include( inctable.get<std::string,uint32>(i) );
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| 60 | if ( i == count ) out += "#line 1\n";
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| 61 | out += nv::slurp( include );
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| 62 | }
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| 63 | }
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| 64 |
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| 65 | if ( table.is_string( "file" ) )
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| 66 | {
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| 67 | out += "#line 1\n" + nv::slurp( table.get_std_string( "file" ) );
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| 68 | }
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| 69 |
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| 70 | if ( table.is_string( "source" ) )
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| 71 | {
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| 72 | out += table.get_std_string( "source" );
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| 73 | }
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| 74 | }
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