source/builders/sequencebuilder.cpp

   1 #include <msp/core/algorithm.h>
   2 #include <msp/core/maputils.h>
   3 #include <msp/strings/format.h>
   4 #include "error.h"
   5 #include "renderbuffer.h"
   6 #include "sequence.h"
   7 #include "sequencebuilder.h"
   8 #include "sequencetemplate.h"
   9
  10 using namespace std;
  11
  12 namespace Msp {
  13 namespace GL {
  14
  15 SequenceBuilder::SequenceBuilder(const SequenceTemplate &t):
  16         tmpl(t)
  17 {
  18         const vector<SequenceTemplate::Step> &steps = tmpl.get_steps();
  19         for(vector<SequenceTemplate::Step>::const_iterator i=steps.begin(); i!=steps.end(); ++i)
  20                 renderables[i->slot_name] = i->default_renderable;
  21         const vector<SequenceTemplate::PostProcessor> &postprocs = tmpl.get_postprocessors();
  22         for(SequenceTemplate::PostProcessorArray::const_iterator i=postprocs.begin(); i!=postprocs.end(); ++i)
  23                 if(!i->slot_name.empty())
  24                         postprocessors[i->slot_name] = 0;
  25 }
  26
  27 void SequenceBuilder::set_renderable(const string &name, Renderable &rend)
  28 {
  29         get_item(renderables, name) = &rend;
  30 }
  31
  32 void SequenceBuilder::set_postprocessor(const string &name, PostProcessor &pproc)
  33 {
  34         get_item(postprocessors, name) = &pproc;
  35 }
  36
  37 void SequenceBuilder::set_debug_name(const string &name)
  38 {
  39 #ifdef DEBUG
  40         debug_name = name;
  41 #else
  42         (void)name;
  43 #endif
  44 }
  45
  46 void SequenceBuilder::build(Sequence &sequence) const
  47 {
  48 #ifdef DEBUG
  49         if(!debug_name.empty())
  50                 sequence.set_debug_name(debug_name);
  51 #endif
  52
  53         sequence.set_hdr(tmpl.get_hdr());
  54         sequence.set_alpha(tmpl.get_alpha());
  55         unsigned samples = min(tmpl.get_maximum_multisample(), Renderbuffer::get_max_samples());
  56         if(samples<tmpl.get_required_multisample())
  57                 throw invalid_operation("SequenceBuilder::build");
  58
  59         sequence.set_multisample(samples);
  60
  61         const vector<SequenceTemplate::Step> &steps = tmpl.get_steps();
  62         for(vector<SequenceTemplate::Step>::const_iterator i=steps.begin(); i!=steps.end(); ++i)
  63         {
  64                 Renderable *renderable = get_item(renderables, i->slot_name);
  65                 if(!renderable)
  66                         continue;
  67
  68                 Sequence::Step &step = sequence.add_step(i->tag, *renderable);
  69                 step.set_blend(i->blend.get());
  70                 step.set_depth_test(i->depth_test.get());
  71                 step.set_lighting(i->lighting);
  72         }
  73
  74         const SequenceTemplate::PostProcessorArray &postprocs = tmpl.get_postprocessors();
  75         for(SequenceTemplate::PostProcessorArray::const_iterator i=postprocs.begin(); i!=postprocs.end(); ++i)
  76         {
  77                 PostProcessor *proc = 0;
  78                 if(!i->slot_name.empty())
  79                         proc = get_item(postprocessors, i->slot_name);
  80                 if(proc)
  81                         sequence.add_postprocessor(*proc);
  82                 else if(i->postprocessor_template)
  83                 {
  84                         proc = i->postprocessor_template->create(sequence.get_width(), sequence.get_height());
  85                         if(proc)
  86                         {
  87 #ifdef DEBUG
  88                                 if(!debug_name.empty())
  89                                         proc->set_debug_name(format("%s/%d.pproc", debug_name, i-postprocs.begin()));
  90 #endif
  91                                 sequence.add_postprocessor_owned(proc);
  92                         }
  93                 }
  94         }
  95 }
  96
  97 Sequence *SequenceBuilder::build(unsigned w, unsigned h) const
  98 {
  99         RefPtr<Sequence> sequence = new Sequence(w, h);
 100         build(*sequence);
 101         return sequence.release();
 102 }
 103
 104 Sequence *SequenceBuilder::build(const View &view) const
 105 {
 106         RefPtr<Sequence> sequence = new Sequence(view);
 107         build(*sequence);
 108         return sequence.release();
 109 }
 110
 111 Sequence *SequenceBuilder::build(const Framebuffer &fbo) const
 112 {
 113         RefPtr<Sequence> sequence = new Sequence(fbo);
 114         build(*sequence);
 115         return sequence.release();
 116 }
 117
 118 } // namespace GL
 119 } // namespace Msp