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::Renderable &r: tmpl.get_renderables())
  20                 renderables[r.slot_name] = r.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         if(tmpl.is_clear_enabled())
  54         {
  55                 sequence.set_clear_colors(tmpl.get_clear_colors());
  56                 sequence.set_clear_depth(tmpl.get_clear_depth());
  57                 sequence.set_clear_stencil(tmpl.get_clear_stencil());
  58         }
  59
  60         for(const SequenceTemplate::Step &s: tmpl.get_steps())
  61         {
  62                 Renderable *renderable = get_item(renderables, s.renderable_name);
  63                 if(!renderable)
  64                         throw missing_renderable(s.renderable_name);
  65
  66                 Sequence::Step &step = sequence.add_step(s.tag, *renderable);
  67                 step.set_depth_test(s.depth_test);
  68                 step.set_stencil_test(s.stencil_test);
  69                 step.set_lighting(s.lighting);
  70         }
  71
  72 #ifdef DEBUG
  73         unsigned index = 0;
  74 #endif
  75         for(const SequenceTemplate::PostProcessor &p: tmpl.get_postprocessors())
  76         {
  77                 PostProcessor *proc = 0;
  78                 if(!p.slot_name.empty())
  79                         proc = get_item(postprocessors, p.slot_name);
  80                 if(!proc)
  81                 {
  82                         if(p.postprocessor_template)
  83                         {
  84                                 proc = p.postprocessor_template->create(sequence.get_width(), sequence.get_height());
  85 #ifdef DEBUG
  86                                 if(!debug_name.empty())
  87                                         proc->set_debug_name(format("%s/%d.pproc", debug_name, index++));
  88 #endif
  89                         }
  90                         else
  91                                 throw invalid_operation("SequenceBuilder::build");
  92
  93                         sequence.add_owned(proc);
  94                 }
  95
  96                 sequence.add_postprocessor(*proc);
  97         }
  98 }
  99
 100 Sequence *SequenceBuilder::build() const
 101 {
 102         RefPtr<Sequence> sequence = new Sequence();
 103         build(*sequence);
 104         return sequence.release();
 105 }
 106
 107 Sequence *SequenceBuilder::build(unsigned w, unsigned h) const
 108 {
 109         RefPtr<Sequence> sequence = new Sequence(w, h, create_frame_format());
 110         build(*sequence);
 111         return sequence.release();
 112 }
 113
 114 Sequence *SequenceBuilder::build(const View &view) const
 115 {
 116         RefPtr<Sequence> sequence = new Sequence(view.get_width(), view.get_height(), create_frame_format());
 117         build(*sequence);
 118         return sequence.release();
 119 }
 120
 121 Sequence *SequenceBuilder::build(const Framebuffer &fbo) const
 122 {
 123         RefPtr<Sequence> sequence = new Sequence(fbo.get_width(), fbo.get_height(), create_frame_format());
 124         build(*sequence);
 125         return sequence.release();
 126 }
 127
 128 FrameFormat SequenceBuilder::create_frame_format() const
 129 {
 130         unsigned samples = min(tmpl.get_maximum_multisample(), DeviceInfo::get_global().limits.max_samples);
 131         if(samples<tmpl.get_required_multisample())
 132                 throw invalid_operation("SequenceBuilder::create_frame_format");
 133
 134         PixelComponents color_comp = (tmpl.get_alpha() ? RGBA : RGB);
 135         DataType color_type = (tmpl.get_hdr() ? HALF_FLOAT : UNSIGNED_BYTE);
 136         PixelFormat color_pf = make_pixelformat(color_comp, color_type);
 137
 138         return (COLOR_ATTACHMENT,color_pf, DEPTH_ATTACHMENT).set_samples(samples);
 139 }
 140
 141 } // namespace GL
 142 } // namespace Msp