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         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.slot_name);
  63                 if(!renderable)
  64                         continue;
  65
  66                 Sequence::Step &step = sequence.add_step(s.tag, *renderable);
  67                 step.set_blend(s.blend);
  68                 step.set_depth_test(s.depth_test);
  69                 step.set_stencil_test(s.stencil_test);
  70                 step.set_lighting(s.lighting);
  71         }
  72
  73 #ifdef DEBUG
  74         unsigned index = 0;
  75 #endif
  76         for(const SequenceTemplate::PostProcessor &p: tmpl.get_postprocessors())
  77         {
  78                 PostProcessor *proc = 0;
  79                 if(!p.slot_name.empty())
  80                         proc = get_item(postprocessors, p.slot_name);
  81                 if(proc)
  82                         sequence.add_postprocessor(*proc);
  83                 else if(p.postprocessor_template)
  84                 {
  85                         proc = p.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, index++));
  91 #endif
  92                                 sequence.add_postprocessor_owned(proc);
  93                         }
  94                 }
  95         }
  96 }
  97
  98 Sequence *SequenceBuilder::build() const
  99 {
 100         RefPtr<Sequence> sequence = new Sequence();
 101         build(*sequence);
 102         return sequence.release();
 103 }
 104
 105 Sequence *SequenceBuilder::build(unsigned w, unsigned h) const
 106 {
 107         RefPtr<Sequence> sequence = new Sequence(w, h, create_frame_format());
 108         build(*sequence);
 109         return sequence.release();
 110 }
 111
 112 Sequence *SequenceBuilder::build(const View &view) const
 113 {
 114         RefPtr<Sequence> sequence = new Sequence(view.get_width(), view.get_height(), create_frame_format());
 115         build(*sequence);
 116         return sequence.release();
 117 }
 118
 119 Sequence *SequenceBuilder::build(const Framebuffer &fbo) const
 120 {
 121         RefPtr<Sequence> sequence = new Sequence(fbo.get_width(), fbo.get_height(), create_frame_format());
 122         build(*sequence);
 123         return sequence.release();
 124 }
 125
 126 FrameFormat SequenceBuilder::create_frame_format() const
 127 {
 128         unsigned samples = min(tmpl.get_maximum_multisample(), DeviceInfo::get_global().limits.max_samples);
 129         if(samples<tmpl.get_required_multisample())
 130                 throw invalid_operation("SequenceBuilder::create_frame_format");
 131
 132         PixelComponents color_comp = (tmpl.get_alpha() ? RGBA : RGB);
 133         DataType color_type = (tmpl.get_hdr() ? HALF_FLOAT : UNSIGNED_BYTE);
 134         PixelFormat color_pf = make_pixelformat(color_comp, color_type);
 135
 136         return (COLOR_ATTACHMENT,color_pf, DEPTH_ATTACHMENT).set_samples(samples);
 137 }
 138
 139 } // namespace GL
 140 } // namespace Msp