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 "depthtest.h"
  10 #include "postprocessor.h"
  11 #include "predicate.h"
  12 #include "stenciltest.h"
  13
  14 namespace Msp {
  15 namespace GL {
  16
  17 class Lighting;
  18 class Renderable;
  19
  20 class SequenceTemplate
  21 {
  22 private:
  23         class PostProcLoader: virtual public DataFile::Loader
  24         {
  25         private:
  26                 template<typename T>
  27                 struct AddPostProc
  28                 {
  29                         void operator()(const std::string &kw, PostProcLoader &ldr) const { ldr.add(kw, &PostProcLoader::postprocessor<T>); }
  30                 };
  31
  32         protected:
  33                 RefPtr<PostProcessor::Template> postproc;
  34
  35         public:
  36                 PostProcLoader();
  37
  38                 PostProcessor::Template *get_postprocessor_template() { return postproc.release(); }
  39
  40         protected:
  41                 virtual void postprocessor_loaded() { }
  42
  43         private:
  44                 template<typename T>
  45                 void postprocessor();
  46
  47                 friend class SequenceTemplate;
  48         };
  49
  50 public:
  51         class Loader: public DataFile::CollectionObjectLoader<SequenceTemplate, Resources>, public PostProcLoader
  52         {
  53         public:
  54                 Loader(SequenceTemplate &, Collection &);
  55
  56                 virtual void postprocessor_loaded();
  57                 void clear();
  58                 void multisample(unsigned);
  59                 void multisample_range(unsigned, unsigned);
  60                 void postprocessor(const std::string &);
  61                 void step(const std::string &);
  62                 void step_with_slot(const std::string &, const std::string &);
  63         };
  64
  65         struct Step
  66         {
  67                 class Loader: public DataFile::CollectionObjectLoader<Step>
  68                 {
  69                 private:
  70                         std::string inline_base_name;
  71
  72                 public:
  73                         Loader(Step &);
  74                         Loader(Step &, Collection &);
  75                 private:
  76                         void init();
  77
  78                 public:
  79                         void set_inline_base_name(const std::string &);
  80
  81                 private:
  82                         void blend();
  83                         void blend_factors(BlendFactor, BlendFactor);
  84                         void depth_test();
  85                         void depth_compare(Predicate);
  86                         void lighting(const std::string &);
  87                         void lighting_inline();
  88                         void object(const std::string &);
  89                         void scene(const std::string &);
  90                         void stencil_test();
  91                 };
  92
  93                 std::string tag;
  94                 const Lighting *lighting;
  95                 DepthTest depth_test;
  96                 StencilTest stencil_test;
  97                 Blend blend;
  98                 std::string slot_name;
  99                 Renderable *default_renderable;
 100
 101                 ~Step();
 102         };
 103
 104         struct PostProcessor
 105         {
 106                 GL::PostProcessor::Template *postprocessor_template;
 107                 std::string slot_name;
 108
 109                 PostProcessor(GL::PostProcessor::Template * = 0);
 110         };
 111
 112 private:
 113         typedef TypeRegistry<PostProcLoader::AddPostProc, PostProcLoader &> PostProcessorRegistry;
 114
 115         bool hdr;
 116         bool alpha;
 117         unsigned required_multisample;
 118         unsigned max_multisample;
 119         std::vector<Step> steps;
 120         std::vector<PostProcessor> postprocessors;
 121         bool clear_enabled;
 122
 123 public:
 124         SequenceTemplate();
 125         ~SequenceTemplate();
 126
 127         bool get_hdr() const { return hdr; }
 128         bool get_alpha() const { return alpha; }
 129         unsigned get_required_multisample() const { return required_multisample; }
 130         unsigned get_maximum_multisample() const { return max_multisample; }
 131         const std::vector<Step> &get_steps() const { return steps; }
 132         const std::vector<PostProcessor> &get_postprocessors() const { return postprocessors; }
 133         bool is_clear_enabled() const { return clear_enabled; }
 134
 135         template<typename T>
 136         static void register_postprocessor(const std::string &);
 137 private:
 138         static PostProcessorRegistry &get_postprocessor_registry();
 139 };
 140
 141 template<typename T>
 142 void SequenceTemplate::register_postprocessor(const std::string &kw)
 143 {
 144         get_postprocessor_registry().register_type<T>(kw);
 145 }
 146
 147 template<typename T>
 148 void SequenceTemplate::PostProcLoader::postprocessor()
 149 {
 150         if(postproc)
 151                 throw std::logic_error("Only one postprocessor allowed per slot");
 152         RefPtr<typename T::Template> pp = new typename T::Template;
 153         load_sub(*pp);
 154         postproc = pp;
 155         pp = 0;
 156         postprocessor_loaded();
 157 }
 158
 159 } // namespace GL
 160 } // namespace Msp
 161
 162 #endif