source/builders/sequencetemplate.h

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