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 #include "view.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         for(const SequenceTemplate::Step &s: tmpl.get_steps())
  20                 renderables[s.slot_name] = s.default_renderable;
  21         for(const SequenceTemplate::PostProcessor &p: tmpl.get_postprocessors())
  22                 if(!p.slot_name.empty())
  23                         postprocessors[p.slot_name] = 0;
  24 }
  25
  26 void SequenceBuilder::set_renderable(const string &name, Renderable &rend)
  27 {
  28         get_item(renderables, name) = &rend;
  29 }
  30
  31 void SequenceBuilder::set_postprocessor(const string &name, PostProcessor &pproc)
  32 {
  33         get_item(postprocessors, name) = &pproc;
  34 }
  35
  36 void SequenceBuilder::set_debug_name(const string &name)
  37 {
  38 #ifdef DEBUG
  39         debug_name = name;
  40 #else
  41         (void)name;
  42 #endif
  43 }
  44
  45 void SequenceBuilder::build(Sequence &sequence) const
  46 {
  47 #ifdef DEBUG
  48         if(!debug_name.empty())
  49                 sequence.set_debug_name(debug_name);
  50 #endif
  51
  52         for(const SequenceTemplate::Step &s: tmpl.get_steps())
  53         {
  54                 Renderable *renderable = get_item(renderables, s.slot_name);
  55                 if(!renderable)
  56                         continue;
  57
  58                 Sequence::Step &step = sequence.add_step(s.tag, *renderable);
  59                 step.set_blend(s.blend);
  60                 step.set_depth_test(s.depth_test);
  61                 step.set_stencil_test(s.stencil_test);
  62                 step.set_lighting(s.lighting);
  63         }
  64
  65 #ifdef DEBUG
  66         unsigned index = 0;
  67 #endif
  68         for(const SequenceTemplate::PostProcessor &p: tmpl.get_postprocessors())
  69         {
  70                 PostProcessor *proc = 0;
  71                 if(!p.slot_name.empty())
  72                         proc = get_item(postprocessors, p.slot_name);
  73                 if(proc)
  74                         sequence.add_postprocessor(*proc);
  75                 else if(p.postprocessor_template)
  76                 {
  77                         proc = p.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, index++));
  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.get_width(), view.get_height(), 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.get_width(), fbo.get_height(), 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