builders/pipelinetemplate.h

   1 #ifndef PIPELINETEMPLATE_H_
   2 #define PIPELINETEMPLATE_H_
   3
   4 #include <string>
   5 #include <vector>
   6 #include <msp/datafile/loadabletyperegistry.h>
   7 #include <msp/datafile/objectloader.h>
   8 #include "blend.h"
   9 #include "postprocessor.h"
  10 #include "predicate.h"
  11
  12 namespace Msp {
  13 namespace GL {
  14
  15 class DepthTest;
  16 class Lighting;
  17
  18 class PipelineTemplate
  19 {
  20 private:
  21         class PostProcLoader: virtual public DataFile::Loader
  22         {
  23         private:
  24                 template<typename T>
  25                 struct AddPostProc
  26                 {
  27                         static void add(PostProcLoader &ldr, const std::string &kw) { ldr.add(kw, &PostProcLoader::postprocessor<T>); }
  28                 };
  29
  30         protected:
  31                 RefPtr<PostProcessor::Template> postproc;
  32
  33         public:
  34                 PostProcLoader();
  35
  36                 PostProcessor::Template *get_postprocessor_template() { return postproc.release(); }
  37
  38         protected:
  39                 virtual void postprocessor_loaded() { }
  40
  41         private:
  42                 template<typename T>
  43                 void postprocessor();
  44
  45                 friend class PipelineTemplate;
  46         };
  47
  48 public:
  49         class Loader: public DataFile::CollectionObjectLoader<PipelineTemplate, Resources>, public PostProcLoader
  50         {
  51         public:
  52                 Loader(PipelineTemplate &, Collection &);
  53
  54                 virtual void postprocessor_loaded();
  55                 void multisample(unsigned);
  56                 void multisample_range(unsigned, unsigned);
  57                 void pass(const std::string &, const std::string &);
  58                 void postprocessor(const std::string &);
  59         };
  60
  61         struct Pass
  62         {
  63                 class Loader: public DataFile::CollectionObjectLoader<Pass>
  64                 {
  65                 public:
  66                         Loader(Pass &);
  67                         Loader(Pass &, Collection &);
  68                 private:
  69                         void init();
  70
  71                         void blend(BlendFactor, BlendFactor);
  72                         void blend_predefined(const std::string &);
  73                         void depth_test(Predicate);
  74                         void depth_test_predefined(const std::string &);
  75                         void lighting(const std::string &);
  76                         void lighting_inline();
  77                         // TODO requires support for scenes in Resources
  78                         //void scene(const std::string &);
  79                 };
  80
  81                 std::string tag;
  82                 RefPtr<Lighting> lighting;
  83                 RefPtr<const DepthTest> depth_test;
  84                 RefPtr<const Blend> blend;
  85                 std::string renderable_name;
  86                 //Renderable *default_renderable;
  87
  88                 ~Pass();
  89         };
  90
  91         struct PostProcessor
  92         {
  93                 GL::PostProcessor::Template *postprocessor_template;
  94                 std::string slot_name;
  95
  96                 PostProcessor(GL::PostProcessor::Template * = 0);
  97         };
  98
  99         typedef std::vector<Pass> PassArray;
 100         typedef std::vector<PostProcessor> PostProcessorArray;
 101
 102 private:
 103         typedef DataFile::LoadableTypeRegistry<PostProcLoader, PostProcLoader::AddPostProc> PostProcessorRegistry;
 104
 105         Resources *resources;
 106         bool hdr;
 107         bool alpha;
 108         unsigned required_multisample;
 109         unsigned max_multisample;
 110         PassArray passes;
 111         PostProcessorArray postprocessors;
 112
 113 public:
 114         PipelineTemplate();
 115         ~PipelineTemplate();
 116
 117         Resources &get_resources() const;
 118         bool get_hdr() const { return hdr; }
 119         bool get_alpha() const { return alpha; }
 120         unsigned get_required_multisample() const { return required_multisample; }
 121         unsigned get_maximum_multisample() const { return max_multisample; }
 122         const PassArray &get_passes() const { return passes; }
 123         const PostProcessorArray &get_postprocessors() const { return postprocessors; }
 124
 125         template<typename T>
 126         static void register_postprocessor(const std::string &);
 127 private:
 128         static PostProcessorRegistry &get_postprocessor_registry();
 129 };
 130
 131 template<typename T>
 132 void PipelineTemplate::register_postprocessor(const std::string &kw)
 133 {
 134         get_postprocessor_registry().register_type<T>(kw);
 135 }
 136
 137 template<typename T>
 138 void PipelineTemplate::PostProcLoader::postprocessor()
 139 {
 140         if(postproc)
 141                 throw std::logic_error("Only one postprocessor allowed per slot");
 142         RefPtr<typename T::Template> pp = new typename T::Template;
 143         load_sub(*pp);
 144         postproc = pp;
 145         pp = 0;
 146         postprocessor_loaded();
 147 }
 148
 149 } // namespace GL
 150 } // namespace Msp
 151
 152 #endif