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 "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         const vector<SequenceTemplate::Step> &steps = tmpl.get_steps();
  54         for(vector<SequenceTemplate::Step>::const_iterator i=steps.begin(); i!=steps.end(); ++i)
  55         {
  56                 Renderable *renderable = get_item(renderables, i->slot_name);
  57                 if(!renderable)
  58                         continue;
  59
  60                 Sequence::Step &step = sequence.add_step(i->tag, *renderable);
  61                 step.set_blend(i->blend);
  62                 step.set_depth_test(i->depth_test);
  63                 step.set_stencil_test(i->stencil_test);
  64                 step.set_lighting(i->lighting);
  65         }
  66
  67         const SequenceTemplate::PostProcessorArray &postprocs = tmpl.get_postprocessors();
  68         for(SequenceTemplate::PostProcessorArray::const_iterator i=postprocs.begin(); i!=postprocs.end(); ++i)
  69         {
  70                 PostProcessor *proc = 0;
  71                 if(!i->slot_name.empty())
  72                         proc = get_item(postprocessors, i->slot_name);
  73                 if(proc)
  74                         sequence.add_postprocessor(*proc);
  75                 else if(i->postprocessor_template)
  76                 {
  77                         proc = i->postprocessor_template->create(sequence.get_width(), sequence.get_height());
  78                         if(proc)
  79                         {
  80 #ifdef DEBUG
  81                                 if(!debug_name.empty())
  82                                         proc->set_debug_name(format("%s/%d.pproc", debug_name, i-postprocs.begin()));
  83 #endif
  84                                 sequence.add_postprocessor_owned(proc);
  85                         }
  86                 }
  87         }
  88 }
  89
  90 Sequence *SequenceBuilder::build(unsigned w, unsigned h) const
  91 {
  92         RefPtr<Sequence> sequence = new Sequence(w, h, create_frame_format());
  93         build(*sequence);
  94         return sequence.release();
  95 }
  96
  97 Sequence *SequenceBuilder::build(const View &view) const
  98 {
  99         RefPtr<Sequence> sequence = new Sequence(view, create_frame_format());
 100         build(*sequence);
 101         return sequence.release();
 102 }
 103
 104 Sequence *SequenceBuilder::build(const Framebuffer &fbo) const
 105 {
 106         RefPtr<Sequence> sequence = new Sequence(fbo, create_frame_format());
 107         build(*sequence);
 108         return sequence.release();
 109 }
 110
 111 FrameFormat SequenceBuilder::create_frame_format() const
 112 {
 113         unsigned samples = min(tmpl.get_maximum_multisample(), Limits::get_global().max_samples);
 114         if(samples<tmpl.get_required_multisample())
 115                 throw invalid_operation("SequenceBuilder::create_frame_format");
 116
 117         PixelComponents color_comp = (tmpl.get_alpha() ? RGBA : RGB);
 118         DataType color_type = (tmpl.get_hdr() ? HALF_FLOAT : UNSIGNED_BYTE);
 119         PixelFormat color_pf = make_pixelformat(color_comp, color_type);
 120
 121         return (COLOR_ATTACHMENT,color_pf, DEPTH_ATTACHMENT).set_samples(samples);
 122 }
 123
 124 } // namespace GL
 125 } // namespace Msp