source/builders/sequencebuilder.cpp

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