source/render/sequence.cpp

   1 #include <msp/core/maputils.h>
   2 #include "blend.h"
   3 #include "error.h"
   4 #include "framebuffer.h"
   5 #include "lighting.h"
   6 #include "postprocessor.h"
   7 #include "renderer.h"
   8 #include "sequence.h"
   9 #include "texture2d.h"
  10 #include "view.h"
  11
  12 using namespace std;
  13
  14 namespace Msp {
  15 namespace GL {
  16
  17 Sequence::Sequence(unsigned w, unsigned h, const FrameFormat &f)
  18 {
  19         init(w, h, f);
  20 }
  21
  22 Sequence::Sequence(const View &view, const FrameFormat &f)
  23 {
  24         init(view.get_width(), view.get_height(), f);
  25 }
  26
  27 Sequence::Sequence(const Framebuffer &fbo, const FrameFormat &f)
  28 {
  29         init(fbo.get_width(), fbo.get_height(), f);
  30 }
  31
  32 void Sequence::init(unsigned w, unsigned h, const FrameFormat &f)
  33 {
  34         width = w;
  35         height = h;
  36         target_format = f;
  37
  38         if(!target_format.empty())
  39         {
  40                 FrameFormat postproc_fmt = target_format;
  41                 postproc_fmt.set_samples(1);
  42                 target[0] = new RenderTarget(width, height, postproc_fmt);
  43                 target[1] = new RenderTarget(width, height, postproc_fmt);
  44
  45                 if(target_format.get_samples()>1)
  46                         target_ms = new RenderTarget(width, height, target_format);
  47                 else
  48                         target_ms = 0;
  49         }
  50         else
  51         {
  52                 target_ms = 0;
  53                 target[0] = 0;
  54                 target[1] = 0;
  55         }
  56 }
  57
  58 Sequence::~Sequence()
  59 {
  60         for(vector<PostProcStep>::iterator i=postproc.begin(); i!=postproc.end(); ++i)
  61                 if(i->owned)
  62                         delete i->postproc;
  63         delete target[0];
  64         delete target[1];
  65         delete target_ms;
  66 }
  67
  68 Sequence::Step &Sequence::add_step(Tag tag, Renderable &r)
  69 {
  70         steps.push_back(Step(tag, &r));
  71         return steps.back();
  72 }
  73
  74 void Sequence::add_postprocessor(PostProcessor &pp)
  75 {
  76         add_postprocessor(&pp, false);
  77 }
  78
  79 void Sequence::add_postprocessor_owned(PostProcessor *pp)
  80 {
  81         add_postprocessor(pp, true);
  82 }
  83
  84 void Sequence::add_postprocessor(PostProcessor *pp, bool owned)
  85 {
  86         if(target_format.empty())
  87         {
  88                 if(owned)
  89                         delete pp;
  90                 throw invalid_operation("Sequence::add_postprocessor");
  91         }
  92         postproc.push_back(PostProcStep(pp, owned));
  93 }
  94
  95 void Sequence::setup_frame(Renderer &renderer)
  96 {
  97         for(vector<Step>::const_iterator i=steps.begin(); i!=steps.end(); ++i)
  98                 if(Renderable *renderable = i->get_renderable())
  99                         renderable->setup_frame(renderer);
 100 }
 101
 102 void Sequence::finish_frame()
 103 {
 104         for(vector<Step>::const_iterator i=steps.begin(); i!=steps.end(); ++i)
 105                 if(Renderable *renderable = i->get_renderable())
 106                         renderable->finish_frame();
 107 }
 108
 109 void Sequence::render(Renderer &renderer, Tag tag) const
 110 {
 111         if(tag.id)
 112                 return;
 113
 114         Renderer::Push _push(renderer);
 115
 116         const Framebuffer *out_fbo = renderer.get_framebuffer();
 117
 118         if(target[0])
 119         {
 120                 renderer.set_framebuffer(&(target_ms ? target_ms : target[0])->get_framebuffer());
 121                 renderer.clear();
 122         }
 123
 124         for(vector<Step>::const_iterator i=steps.begin(); i!=steps.end(); ++i)
 125         {
 126                 Renderer::Push _push2(renderer);
 127
 128                 renderer.set_depth_test(&i->get_depth_test());
 129                 renderer.set_stencil_test(&i->get_stencil_test());
 130                 renderer.set_blend(&i->get_blend());
 131
 132                 if (const Lighting *lighting = i->get_lighting())
 133                         renderer.add_shader_data(lighting->get_shader_data());
 134                 renderer.set_clipping(i->get_clipping());
 135
 136                 if(const Renderable *renderable = i->get_renderable())
 137                         renderer.render(*renderable, i->get_tag());
 138         }
 139
 140         if(target[0])
 141         {
 142                 if(target_ms)
 143                         renderer.resolve_multisample(target[0]->get_framebuffer(), COLOR_BUFFER_BIT|DEPTH_BUFFER_BIT);
 144
 145                 renderer.set_depth_test(0);
 146                 renderer.set_stencil_test(0);
 147                 renderer.set_blend(0);
 148
 149                 for(unsigned i=0; i<postproc.size(); ++i)
 150                 {
 151                         unsigned j = i%2;
 152                         renderer.set_framebuffer(i+1<postproc.size() ? &target[1-j]->get_framebuffer() : out_fbo);
 153                         const Texture2D &color = target[j]->get_target_texture(COLOR_ATTACHMENT);
 154                         const Texture2D &depth = target[j]->get_target_texture(DEPTH_ATTACHMENT);
 155                         postproc[i].postproc->render(renderer, color, depth);
 156                 }
 157         }
 158 }
 159
 160 void Sequence::set_debug_name(const string &name)
 161 {
 162 #ifdef DEBUG
 163         for(unsigned i=0; i<2; ++i)
 164                 if(target[i])
 165                         target[i]->set_debug_name(format("%s [RT:%d]", name, i));
 166         if(target_ms)
 167                 target_ms->set_debug_name(name+" [RT:ms]");
 168 #else
 169         (void)name;
 170 #endif
 171 }
 172
 173
 174 Sequence::Step::Step(Tag t, Renderable *r):
 175         tag(t),
 176         lighting(0),
 177         clipping(0),
 178         renderable(r)
 179 { }
 180
 181 void Sequence::Step::set_lighting(const Lighting *l)
 182 {
 183         lighting = l;
 184 }
 185
 186 void Sequence::Step::set_depth_test(const DepthTest &dt)
 187 {
 188         depth_test = dt;
 189 }
 190
 191 void Sequence::Step::set_stencil_test(const StencilTest &st)
 192 {
 193         stencil_test = st;
 194 }
 195
 196 void Sequence::Step::set_blend(const Blend &b)
 197 {
 198         blend = b;
 199 }
 200
 201 void Sequence::Step::set_clipping(const Clipping *c)
 202 {
 203         clipping = c;
 204 }
 205
 206 } // namespace GL
 207 } // namespace Msp