Engine directory for ticket #1

Engine/source/shaderGen/HLSL/shaderGenHLSL.cpp

@@ -0,0 +1,199 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// 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 "platform/platform.h"
+#include "shaderGen/HLSL/shaderGenHLSL.h"
+
+#include "shaderGen/HLSL/shaderCompHLSL.h"
+#include "shaderGen/featureMgr.h"
+
+
+void ShaderGenPrinterHLSL::printShaderHeader(Stream& stream)
+{
+   const char *header1 = "//*****************************************************************************\r\n";
+   const char *header2 = "// Torque -- HLSL procedural shader\r\n";
+
+   stream.write( dStrlen(header1), header1 );
+   stream.write( dStrlen(header2), header2 );
+   stream.write( dStrlen(header1), header1 );
+
+   const char* header3 = "\r\n";      
+   stream.write( dStrlen(header3), header3 );
+}
+
+void ShaderGenPrinterHLSL::printMainComment(Stream& stream)
+{
+   const char * header5 = "// Main\r\n";
+   const char * line    = "//-----------------------------------------------------------------------------\r\n";
+
+   stream.write( dStrlen(line), line );
+   stream.write( dStrlen(header5), header5 );
+   stream.write( dStrlen(line), line );
+}
+
+void ShaderGenPrinterHLSL::printVertexShaderCloser(Stream& stream)
+{
+   const char *closer = "   return OUT;\r\n}\r\n";
+   stream.write( dStrlen(closer), closer );
+}
+
+void ShaderGenPrinterHLSL::printPixelShaderOutputStruct(Stream& stream, const MaterialFeatureData &featureData)
+{
+   // Determine the number of output targets we need
+   U32 numMRTs = 0;
+   for( U32 i = 0; i < FEATUREMGR->getFeatureCount(); i++ )
+   {
+      const FeatureInfo &info = FEATUREMGR->getAt( i );
+      if( featureData.features.hasFeature( *info.type ) )
+         numMRTs |= info.feature->getOutputTargets( featureData );
+   }
+
+   WRITESTR( "struct Fragout\r\n" );
+   WRITESTR( "{\r\n" );
+   WRITESTR( "   float4 col : COLOR0;\r\n" );
+   for( U32 i = 1; i < 4; i++ )
+   {
+      if( numMRTs & 1 << i )
+         WRITESTR( avar( "   float4 col%d : COLOR%d;\r\n", i, i ) );
+   }
+   WRITESTR( "};\r\n" );
+   WRITESTR( "\r\n" );
+   WRITESTR( "\r\n" );
+}
+
+void ShaderGenPrinterHLSL::printPixelShaderCloser(Stream& stream)
+{
+   WRITESTR( "\r\n   return OUT;\r\n}\r\n" );
+}
+
+void ShaderGenPrinterHLSL::printLine(Stream& stream, const String& line)
+{
+   stream.write(line.length(), line.c_str());
+   const char* end = "\r\n";
+   stream.write(dStrlen(end), end);
+}
+
+const char* ShaderGenComponentFactoryHLSL::typeToString( GFXDeclType type )
+{
+   switch ( type )
+   {
+      default:
+      case GFXDeclType_Float:
+         return "float";
+
+      case GFXDeclType_Float2:
+         return "float2";
+
+      case GFXDeclType_Float3:
+         return "float3";
+
+      case GFXDeclType_Float4:
+      case GFXDeclType_Color:
+         return "float4";
+   }
+}
+
+ShaderComponent* ShaderGenComponentFactoryHLSL::createVertexInputConnector( const GFXVertexFormat &vertexFormat )
+{
+   ShaderConnectorHLSL *vertComp = new ShaderConnectorHLSL;
+   vertComp->setName( "VertData" );
+
+   // Loop thru the vertex format elements.
+   for ( U32 i=0; i < vertexFormat.getElementCount(); i++ )
+   {
+      const GFXVertexElement &element = vertexFormat.getElement( i );
+      
+      Var *var = NULL;
+
+      if ( element.isSemantic( GFXSemantic::POSITION ) )
+      {
+         var = vertComp->getElement( RT_POSITION );
+         var->setName( "position" );
+      }
+      else if ( element.isSemantic( GFXSemantic::NORMAL ) )
+      {
+         var = vertComp->getElement( RT_NORMAL );
+         var->setName( "normal" );
+      }
+      else if ( element.isSemantic( GFXSemantic::TANGENT ) )
+      {
+         var = vertComp->getElement( RT_TANGENT );
+         var->setName( "T" );
+      }
+      else if ( element.isSemantic( GFXSemantic::TANGENTW ) )
+      {
+         var = vertComp->getIndexedElement( element.getSemanticIndex(), RT_TEXCOORD );
+         var->setName( "tangentW" );
+      }
+      else if ( element.isSemantic( GFXSemantic::BINORMAL ) )
+      {
+         var = vertComp->getElement( RT_BINORMAL );
+         var->setName( "B" );
+      }
+      else if ( element.isSemantic( GFXSemantic::COLOR ) )
+      {
+         var = vertComp->getElement( RT_COLOR );
+         var->setName( "diffuse" );
+      }
+      else if ( element.isSemantic( GFXSemantic::TEXCOORD ) )
+      {
+         var = vertComp->getIndexedElement( element.getSemanticIndex(), RT_TEXCOORD );
+         if ( element.getSemanticIndex() == 0 )
+            var->setName( "texCoord" );
+         else
+            var->setName( String::ToString( "texCoord%d", element.getSemanticIndex() + 1 ) );
+      }
+      else
+      {
+         // Everything else is a texcoord!
+         var = vertComp->getIndexedElement( element.getSemanticIndex(), RT_TEXCOORD );
+         var->setName( "tc" + element.getSemantic() );
+      }
+
+      if ( !var )
+         continue;
+
+      var->setStructName( "IN" );
+      var->setType( typeToString( element.getType() ) );
+   }
+
+   return vertComp;
+}
+
+ShaderComponent* ShaderGenComponentFactoryHLSL::createVertexPixelConnector()
+{
+   ShaderComponent* comp = new ShaderConnectorHLSL;
+   ((ShaderConnector*)comp)->setName("ConnectData");
+   return comp;
+}
+
+ShaderComponent* ShaderGenComponentFactoryHLSL::createVertexParamsDef()
+{
+   ShaderComponent* comp = new VertexParamsDefHLSL;
+   return comp;
+}
+
+ShaderComponent* ShaderGenComponentFactoryHLSL::createPixelParamsDef()
+{
+   ShaderComponent* comp = new PixelParamsDefHLSL;
+   return comp;
+}