source/renderpass.cpp

   1 #include <msp/datafile/collection.h>
   2 #include <msp/strings/format.h>
   3 #include "error.h"
   4 #include "material.h"
   5 #include "renderpass.h"
   6 #include "program.h"
   7 #include "programdata.h"
   8 #include "texenv.h"
   9 #include "texture.h"
  10 #include "texture2d.h"
  11 #include "texturing.h"
  12
  13 using namespace std;
  14
  15 namespace Msp {
  16 namespace GL {
  17
  18 RenderPass::RenderPass():
  19         shprog(0),
  20         shdata(0),
  21         material(0),
  22         texturing(0)
  23 { }
  24
  25 RenderPass::RenderPass(const RenderPass &other):
  26         shprog(other.shprog),
  27         shdata(other.shdata ? new ProgramData(*other.shdata) : 0),
  28         material(other.material),
  29         texturing(other.texturing ? new Texturing(*other.texturing) : 0),
  30         tex_names(other.tex_names)
  31 { }
  32
  33 RenderPass::~RenderPass()
  34 {
  35         delete shdata;
  36         delete texturing;
  37 }
  38
  39 void RenderPass::set_material(const Material *mat)
  40 {
  41         material = mat;
  42         material.keep();
  43 }
  44
  45 void RenderPass::set_texture(unsigned index, const Texture *tex)
  46 {
  47         if(!texturing)
  48                 texturing = new Texturing;
  49
  50         texturing->attach(index, *tex);
  51 }
  52
  53 int RenderPass::get_texture_index(const string &n) const
  54 {
  55         map<string, unsigned>::const_iterator i = tex_names.find(n);
  56         if(i==tex_names.end())
  57                 return -1;
  58         return i->second;
  59 }
  60
  61
  62 RenderPass::Loader::Loader(RenderPass &p):
  63         DataFile::CollectionObjectLoader<RenderPass>(p, 0)
  64 {
  65         init();
  66 }
  67
  68 RenderPass::Loader::Loader(RenderPass &p, Collection &c):
  69         DataFile::CollectionObjectLoader<RenderPass>(p, &c)
  70 {
  71         init();
  72 }
  73
  74 void RenderPass::Loader::init()
  75 {
  76         add("shader",   &RenderPass::shprog);
  77         add("material", &Loader::material_inline);
  78         add("material", &Loader::material);
  79         add("texunit",  &Loader::texunit);
  80         add("texunit",  &Loader::texunit_named);
  81         add("uniforms", &Loader::uniforms);
  82 }
  83
  84 void RenderPass::Loader::material_inline()
  85 {
  86         RefPtr<Material> mat = new Material;
  87         load_sub(*mat);
  88         obj.material = mat;
  89 }
  90
  91 void RenderPass::Loader::material(const string &name)
  92 {
  93         obj.material = &get_collection().get<Material>(name);
  94         obj.material.keep();
  95 }
  96
  97 void RenderPass::Loader::texunit(unsigned i)
  98 {
  99         if(!obj.texturing)
 100                 obj.texturing = new Texturing;
 101         TextureLoader ldr(*obj.texturing, i, coll);
 102         load_sub_with(ldr);
 103 }
 104
 105 void RenderPass::Loader::texunit_named(unsigned i, const string &n)
 106 {
 107         texunit(i);
 108         obj.tex_names[n] = i;
 109 }
 110
 111 void RenderPass::Loader::uniforms()
 112 {
 113         if(!obj.shprog)
 114                 throw invalid_operation("RenderPass::Loader::uniforms");
 115         if(!obj.shdata)
 116                 obj.shdata = new ProgramData(*obj.shprog);
 117         load_sub(*obj.shdata);
 118 }
 119
 120
 121 RenderPass::TextureLoader::TextureLoader(Texturing &t, unsigned i, Collection *c):
 122         DataFile::CollectionObjectLoader<Texturing>(t, c),
 123         index(i)
 124 {
 125         add("texture",   &TextureLoader::texture);
 126         add("texture2d", &TextureLoader::texture2d);
 127 }
 128
 129 void RenderPass::TextureLoader::finish()
 130 {
 131         if(tex)
 132         {
 133                 if(env)
 134                         obj.attach(index, *tex, *env);
 135                 else
 136                         obj.attach(index, *tex);
 137                 tex.release();
 138                 env.release();
 139         }
 140 }
 141
 142 void RenderPass::TextureLoader::texenv()
 143 {
 144         throw runtime_error("TexEnvs can't be loaded yet");
 145         /*env = new TexEnv;
 146         load_sub(*env);*/
 147 }
 148
 149 void RenderPass::TextureLoader::texture(const string &name)
 150 {
 151         tex = &get_collection().get<Texture>(name);
 152         tex.keep();
 153 }
 154
 155 void RenderPass::TextureLoader::texture2d()
 156 {
 157         tex = new Texture2D;
 158         load_sub(static_cast<Texture2D &>(*tex));
 159 }
 160
 161 } // namespace GL
 162 } // namespace Msp