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 texturing;
  36 }
  37
  38 void RenderPass::set_shader_program(const Program *prog, const ProgramData *data)
  39 {
  40         shprog = prog;
  41         shdata = data;
  42         shdata.keep();
  43 }
  44
  45 void RenderPass::set_material(const Material *mat)
  46 {
  47         material = mat;
  48         material.keep();
  49 }
  50
  51 void RenderPass::set_texture(unsigned index, const Texture *tex)
  52 {
  53         if(!texturing)
  54                 texturing = new Texturing;
  55
  56         texturing->attach(index, *tex);
  57 }
  58
  59 int RenderPass::get_texture_index(const string &n) const
  60 {
  61         map<string, unsigned>::const_iterator i = tex_names.find(n);
  62         if(i==tex_names.end())
  63                 return -1;
  64         return i->second;
  65 }
  66
  67
  68 RenderPass::Loader::Loader(RenderPass &p):
  69         DataFile::CollectionObjectLoader<RenderPass>(p, 0)
  70 {
  71         init();
  72 }
  73
  74 RenderPass::Loader::Loader(RenderPass &p, Collection &c):
  75         DataFile::CollectionObjectLoader<RenderPass>(p, &c)
  76 {
  77         init();
  78 }
  79
  80 void RenderPass::Loader::init()
  81 {
  82         add("shader",   &RenderPass::shprog);
  83         add("material", &Loader::material_inline);
  84         add("material", &Loader::material);
  85         add("texunit",  &Loader::texunit);
  86         add("texunit",  &Loader::texunit_named);
  87         add("uniforms", &Loader::uniforms);
  88 }
  89
  90 void RenderPass::Loader::material_inline()
  91 {
  92         RefPtr<Material> mat = new Material;
  93         load_sub(*mat);
  94         obj.material = mat;
  95 }
  96
  97 void RenderPass::Loader::material(const string &name)
  98 {
  99         obj.material = &get_collection().get<Material>(name);
 100         obj.material.keep();
 101 }
 102
 103 void RenderPass::Loader::texunit(unsigned i)
 104 {
 105         if(!obj.texturing)
 106                 obj.texturing = new Texturing;
 107         TextureLoader ldr(*obj.texturing, i, coll);
 108         load_sub_with(ldr);
 109 }
 110
 111 void RenderPass::Loader::texunit_named(unsigned i, const string &n)
 112 {
 113         texunit(i);
 114         obj.tex_names[n] = i;
 115 }
 116
 117 void RenderPass::Loader::uniforms()
 118 {
 119         if(!obj.shprog)
 120                 throw invalid_operation("RenderPass::Loader::uniforms");
 121         RefPtr<ProgramData> shd = new ProgramData;
 122         load_sub(*shd);
 123         obj.shdata = shd;
 124 }
 125
 126
 127 RenderPass::TextureLoader::TextureLoader(Texturing &t, unsigned i, Collection *c):
 128         DataFile::CollectionObjectLoader<Texturing>(t, c),
 129         index(i)
 130 {
 131         add("texture",   &TextureLoader::texture);
 132         add("texture2d", &TextureLoader::texture2d);
 133 }
 134
 135 void RenderPass::TextureLoader::finish()
 136 {
 137         if(tex)
 138         {
 139                 if(env)
 140                         obj.attach(index, *tex, *env);
 141                 else
 142                         obj.attach(index, *tex);
 143                 tex.release();
 144                 env.release();
 145         }
 146 }
 147
 148 void RenderPass::TextureLoader::texenv()
 149 {
 150         throw runtime_error("TexEnvs can't be loaded yet");
 151         /*env = new TexEnv;
 152         load_sub(*env);*/
 153 }
 154
 155 void RenderPass::TextureLoader::texture(const string &name)
 156 {
 157         tex = &get_collection().get<Texture>(name);
 158         tex.keep();
 159 }
 160
 161 void RenderPass::TextureLoader::texture2d()
 162 {
 163         tex = new Texture2D;
 164         load_sub(static_cast<Texture2D &>(*tex));
 165 }
 166
 167 } // namespace GL
 168 } // namespace Msp