source/render/sequence.cpp

   1 #include <msp/strings/format.h>
   2 #include "error.h"
   3 #include "lighting.h"
   4 #include "postprocessor.h"
   5 #include "renderer.h"
   6 #include "rendertarget.h"
   7 #include "sequence.h"
   8 #include "texture2d.h"
   9
  10 using namespace std;
  11
  12 namespace Msp {
  13 namespace GL {
  14
  15 Sequence::Sequence(unsigned w, unsigned h, const FrameFormat &f):
  16         width(w),
  17         height(h),
  18         target_format(f)
  19 {
  20         if(target_format.empty())
  21                 throw invalid_argument("Sequence::Sequence");
  22
  23         FrameFormat postproc_fmt = target_format;
  24         postproc_fmt.set_samples(1);
  25         target[0] = new RenderTarget(width, height, postproc_fmt);
  26         target[1] = new RenderTarget(width, height, postproc_fmt);
  27
  28         if(target_format.get_samples()>1)
  29                 target_ms = new RenderTarget(width, height, target_format);
  30 }
  31
  32 Sequence::~Sequence()
  33 {
  34         for(PostProcStep &p: postproc)
  35                 if(p.owned)
  36                         delete p.postproc;
  37         delete target[0];
  38         delete target[1];
  39         delete target_ms;
  40 }
  41
  42 void Sequence::set_clear_enabled(bool c)
  43 {
  44         clear_enabled = c;
  45 }
  46
  47 void Sequence::set_clear_colors(const vector<Color> &c)
  48 {
  49         clear_enabled = true;
  50         clear_colors = c;
  51 }
  52
  53 void Sequence::set_clear_depth(float d)
  54 {
  55         clear_enabled = true;
  56         clear_depth = d;
  57 }
  58
  59 void Sequence::set_clear_stencil(int s)
  60 {
  61         clear_enabled = true;
  62         clear_stencil = s;
  63 }
  64
  65 Sequence::Step &Sequence::add_step(Tag tag, Renderable &r)
  66 {
  67         steps.push_back(Step(tag, &r));
  68         return steps.back();
  69 }
  70
  71 void Sequence::add_postprocessor(PostProcessor &pp)
  72 {
  73         add_postprocessor(&pp, false);
  74 }
  75
  76 void Sequence::add_postprocessor_owned(PostProcessor *pp)
  77 {
  78         add_postprocessor(pp, true);
  79 }
  80
  81 void Sequence::add_postprocessor(PostProcessor *pp, bool owned)
  82 {
  83         if(target_format.empty())
  84         {
  85                 if(owned)
  86                         delete pp;
  87                 throw invalid_operation("Sequence::add_postprocessor");
  88         }
  89         postproc.push_back(PostProcStep(pp, owned));
  90 }
  91
  92 void Sequence::setup_frame(Renderer &renderer)
  93 {
  94         for(const Step &s: steps)
  95                 if(Renderable *renderable = s.get_renderable())
  96                         renderable->setup_frame(renderer);
  97 }
  98
  99 void Sequence::finish_frame()
 100 {
 101         for(const Step &s: steps)
 102                 if(Renderable *renderable = s.get_renderable())
 103                         renderable->finish_frame();
 104 }
 105
 106 void Sequence::render(Renderer &renderer, Tag tag) const
 107 {
 108         if(tag.id)
 109                 return;
 110
 111         Renderer::Push _push(renderer);
 112
 113         const Framebuffer *out_fbo = renderer.get_framebuffer();
 114
 115         if(target[0])
 116                 renderer.set_framebuffer(&(target_ms ? target_ms : target[0])->get_framebuffer());
 117
 118         if(clear_enabled)
 119         {
 120                 const Framebuffer *target_fbo = renderer.get_framebuffer();
 121                 if(!target_fbo)
 122                         throw invalid_operation("Sequence::render");
 123
 124                 const FrameFormat &format = target_fbo->get_format();
 125                 ClearValue clear_values[7];
 126                 unsigned i = 0;
 127                 Color default_color = (clear_colors.empty() ? Color(0.0f, 0.0f, 0.0f, 0.0f) : clear_colors.front());
 128                 ClearValue *cv = clear_values;
 129                 for(FrameAttachment a: format)
 130                 {
 131                         if(get_attach_point(a)==get_attach_point(DEPTH_ATTACHMENT))
 132                                 cv->depth_stencil.depth = clear_depth;
 133                         else if(get_attach_point(a)==get_attach_point(STENCIL_ATTACHMENT))
 134                                 cv->depth_stencil.stencil = clear_stencil;
 135                         else
 136                                 cv->color = (i<clear_colors.size() ? clear_colors[i++] : default_color);
 137                         ++cv;
 138                 }
 139
 140                 renderer.clear(clear_values);
 141         }
 142
 143         for(const Step &s: steps)
 144         {
 145                 Renderer::Push _push2(renderer);
 146
 147                 renderer.set_depth_test(&s.get_depth_test());
 148                 renderer.set_stencil_test(&s.get_stencil_test());
 149                 renderer.set_blend(&s.get_blend());
 150
 151                 if (const Lighting *lighting = s.get_lighting())
 152                         renderer.add_shader_data(lighting->get_shader_data());
 153                 renderer.set_clipping(s.get_clipping());
 154
 155                 if(const Renderable *renderable = s.get_renderable())
 156                         renderer.render(*renderable, s.get_tag());
 157         }
 158
 159         if(target[0])
 160         {
 161                 if(target_ms)
 162                         renderer.resolve_multisample(target[0]->get_framebuffer());
 163
 164                 renderer.set_depth_test(0);
 165                 renderer.set_stencil_test(0);
 166                 renderer.set_blend(0);
 167
 168                 for(unsigned i=0; i<postproc.size(); ++i)
 169                 {
 170                         unsigned j = i%2;
 171                         renderer.set_framebuffer(i+1<postproc.size() ? &target[1-j]->get_framebuffer() : out_fbo);
 172                         const Texture2D &color = target[j]->get_target_texture(COLOR_ATTACHMENT);
 173                         const Texture2D &depth = target[j]->get_target_texture(DEPTH_ATTACHMENT);
 174                         postproc[i].postproc->render(renderer, color, depth);
 175                 }
 176         }
 177 }
 178
 179 void Sequence::set_debug_name(const string &name)
 180 {
 181 #ifdef DEBUG
 182         for(unsigned i=0; i<2; ++i)
 183                 if(target[i])
 184                         target[i]->set_debug_name(format("%s [RT:%d]", name, i));
 185         if(target_ms)
 186                 target_ms->set_debug_name(name+" [RT:ms]");
 187 #else
 188         (void)name;
 189 #endif
 190 }
 191
 192
 193 Sequence::Step::Step(Tag t, Renderable *r):
 194         tag(t),
 195         lighting(0),
 196         clipping(0),
 197         renderable(r)
 198 { }
 199
 200 void Sequence::Step::set_lighting(const Lighting *l)
 201 {
 202         lighting = l;
 203 }
 204
 205 void Sequence::Step::set_depth_test(const DepthTest &dt)
 206 {
 207         depth_test = dt;
 208 }
 209
 210 void Sequence::Step::set_stencil_test(const StencilTest &st)
 211 {
 212         stencil_test = st;
 213 }
 214
 215 void Sequence::Step::set_blend(const Blend &b)
 216 {
 217         blend = b;
 218 }
 219
 220 void Sequence::Step::set_clipping(const Clipping *c)
 221 {
 222         clipping = c;
 223 }
 224
 225 } // namespace GL
 226 } // namespace Msp