dxvk/src/dxbc/dxbc_module.cpp

#include "dxbc_compiler.h"
#include "dxbc_module.h"

namespace dxvk {
  
  DxbcModule::DxbcModule(DxbcReader& reader)
  : m_header(reader) {
    for (uint32_t i = 0; i < m_header.numChunks(); i++) {
      
      // The chunk tag is stored at the beginning of each chunk
      auto chunkReader = reader.clone(m_header.chunkOffset(i));
      auto tag         = chunkReader.readTag();
      
      // The chunk size follows right after the four-character
      // code. This does not include the eight bytes that are
      // consumed by the FourCC and chunk length entry.
      auto chunkLength = chunkReader.readu32() + 8;
           chunkReader = chunkReader.resize(chunkLength);
      
      if ((tag == "SHDR") || (tag == "SHEX"))
        m_shexChunk = new DxbcShex(chunkReader);
      
    }
  }
  
  
  DxbcModule::~DxbcModule() {
    
  }
  
  
  Rc<DxvkShader> DxbcModule::compile() const {
    if (m_shexChunk == nullptr)
      throw DxvkError("DxbcModule::compile: No SHDR/SHEX chunk");
    
    DxbcCompiler compiler(m_shexChunk->version());
    
    for (auto ins : *m_shexChunk)
      compiler.processInstruction(ins);
    return compiler.finalize();
  }
  
}