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         sequence.set_clear_enabled(tmpl.is_clear_enabled());
  53
  54         for(const SequenceTemplate::Step &s: tmpl.get_steps())
  55         {
  56                 Renderable *renderable = get_item(renderables, s.slot_name);
  57                 if(!renderable)
  58                         continue;
  59
  60                 Sequence::Step &step = sequence.add_step(s.tag, *renderable);
  61                 step.set_blend(s.blend);
  62                 step.set_depth_test(s.depth_test);
  63                 step.set_stencil_test(s.stencil_test);
  64                 step.set_lighting(s.lighting);
  65         }
  66
  67 #ifdef DEBUG
  68         unsigned index = 0;
  69 #endif
  70         for(const SequenceTemplate::PostProcessor &p: tmpl.get_postprocessors())
  71         {
  72                 PostProcessor *proc = 0;
  73                 if(!p.slot_name.empty())
  74                         proc = get_item(postprocessors, p.slot_name);
  75                 if(proc)
  76                         sequence.add_postprocessor(*proc);
  77                 else if(p.postprocessor_template)
  78                 {
  79                         proc = p.postprocessor_template->create(sequence.get_width(), sequence.get_height());
  80                         if(proc)
  81                         {
  82 #ifdef DEBUG
  83                                 if(!debug_name.empty())
  84                                         proc->set_debug_name(format("%s/%d.pproc", debug_name, index++));
  85 #endif
  86                                 sequence.add_postprocessor_owned(proc);
  87                         }
  88                 }
  89         }
  90 }
  91
  92 Sequence *SequenceBuilder::build() const
  93 {
  94         RefPtr<Sequence> sequence = new Sequence();
  95         build(*sequence);
  96         return sequence.release();
  97 }
  98
  99 Sequence *SequenceBuilder::build(unsigned w, unsigned h) const
 100 {
 101         RefPtr<Sequence> sequence = new Sequence(w, h, create_frame_format());
 102         build(*sequence);
 103         return sequence.release();
 104 }
 105
 106 Sequence *SequenceBuilder::build(const View &view) const
 107 {
 108         RefPtr<Sequence> sequence = new Sequence(view.get_width(), view.get_height(), create_frame_format());
 109         build(*sequence);
 110         return sequence.release();
 111 }
 112
 113 Sequence *SequenceBuilder::build(const Framebuffer &fbo) const
 114 {
 115         RefPtr<Sequence> sequence = new Sequence(fbo.get_width(), fbo.get_height(), create_frame_format());
 116         build(*sequence);
 117         return sequence.release();
 118 }
 119
 120 FrameFormat SequenceBuilder::create_frame_format() const
 121 {
 122         unsigned samples = min(tmpl.get_maximum_multisample(), Limits::get_global().max_samples);
 123         if(samples<tmpl.get_required_multisample())
 124                 throw invalid_operation("SequenceBuilder::create_frame_format");
 125
 126         PixelComponents color_comp = (tmpl.get_alpha() ? RGBA : RGB);
 127         DataType color_type = (tmpl.get_hdr() ? HALF_FLOAT : UNSIGNED_BYTE);
 128         PixelFormat color_pf = make_pixelformat(color_comp, color_type);
 129
 130         return (COLOR_ATTACHMENT,color_pf, DEPTH_ATTACHMENT).set_samples(samples);
 131 }
 132
 133 } // namespace GL
 134 } // namespace Msp