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 "renderer.h"
   9 #include "texenv.h"
  10 #include "texture.h"
  11 #include "texture2d.h"
  12 #include "texturing.h"
  13
  14 using namespace std;
  15
  16 namespace Msp {
  17 namespace GL {
  18
  19 RenderPass::RenderPass():
  20         shprog(0),
  21         shdata(0),
  22         material(0),
  23         texturing(0)
  24 { }
  25
  26 RenderPass::RenderPass(const RenderPass &other):
  27         shprog(other.shprog),
  28         shdata(other.shdata ? new ProgramData(*other.shdata) : 0),
  29         material(other.material),
  30         texturing(other.texturing ? new Texturing(*other.texturing) : 0),
  31         tex_names(other.tex_names)
  32 { }
  33
  34 RenderPass::~RenderPass()
  35 {
  36         delete texturing;
  37 }
  38
  39 void RenderPass::set_shader_program(const Program *prog, const ProgramData *data)
  40 {
  41         shprog = prog;
  42         shdata = data;
  43         shdata.keep();
  44 }
  45
  46 void RenderPass::set_material(const Material *mat)
  47 {
  48         material = mat;
  49         material.keep();
  50 }
  51
  52 void RenderPass::set_texture(unsigned index, const Texture *tex)
  53 {
  54         if(!texturing)
  55                 texturing = new Texturing;
  56
  57         texturing->attach(index, *tex);
  58 }
  59
  60 int RenderPass::get_texture_index(const string &n) const
  61 {
  62         map<string, unsigned>::const_iterator i = tex_names.find(n);
  63         if(i==tex_names.end())
  64                 return -1;
  65         return i->second;
  66 }
  67
  68 void RenderPass::apply(Renderer &renderer) const
  69 {
  70         renderer.set_texturing(texturing);
  71         renderer.set_material(material.get());
  72         renderer.set_shader_program(shprog, shdata.get());
  73 }
  74
  75
  76 RenderPass::Loader::Loader(RenderPass &p):
  77         DataFile::CollectionObjectLoader<RenderPass>(p, 0)
  78 {
  79         init();
  80 }
  81
  82 RenderPass::Loader::Loader(RenderPass &p, Collection &c):
  83         DataFile::CollectionObjectLoader<RenderPass>(p, &c)
  84 {
  85         init();
  86 }
  87
  88 void RenderPass::Loader::init()
  89 {
  90         add("shader",   &RenderPass::shprog);
  91         add("material", &Loader::material_inline);
  92         add("material", &Loader::material);
  93         add("texunit",  &Loader::texunit);
  94         add("texunit",  &Loader::texunit_named);
  95         add("uniforms", &Loader::uniforms);
  96 }
  97
  98 void RenderPass::Loader::material_inline()
  99 {
 100         RefPtr<Material> mat = new Material;
 101         load_sub(*mat);
 102         obj.material = mat;
 103 }
 104
 105 void RenderPass::Loader::material(const string &name)
 106 {
 107         obj.material = &get_collection().get<Material>(name);
 108         obj.material.keep();
 109 }
 110
 111 void RenderPass::Loader::texunit(unsigned i)
 112 {
 113         if(!obj.texturing)
 114                 obj.texturing = new Texturing;
 115         TextureLoader ldr(*obj.texturing, i, coll);
 116         load_sub_with(ldr);
 117 }
 118
 119 void RenderPass::Loader::texunit_named(unsigned i, const string &n)
 120 {
 121         texunit(i);
 122         obj.tex_names[n] = i;
 123 }
 124
 125 void RenderPass::Loader::uniforms()
 126 {
 127         if(!obj.shprog)
 128                 throw invalid_operation("RenderPass::Loader::uniforms");
 129         RefPtr<ProgramData> shd = new ProgramData;
 130         load_sub(*shd);
 131         obj.shdata = shd;
 132 }
 133
 134
 135 RenderPass::TextureLoader::TextureLoader(Texturing &t, unsigned i, Collection *c):
 136         DataFile::CollectionObjectLoader<Texturing>(t, c),
 137         index(i)
 138 {
 139         add("texture",   &TextureLoader::texture);
 140         add("texture2d", &TextureLoader::texture2d);
 141 }
 142
 143 void RenderPass::TextureLoader::finish()
 144 {
 145         if(tex)
 146         {
 147                 if(env)
 148                         obj.attach(index, *tex, *env);
 149                 else
 150                         obj.attach(index, *tex);
 151                 tex.release();
 152                 env.release();
 153         }
 154 }
 155
 156 void RenderPass::TextureLoader::texenv()
 157 {
 158         throw runtime_error("TexEnvs can't be loaded yet");
 159         /*env = new TexEnv;
 160         load_sub(*env);*/
 161 }
 162
 163 void RenderPass::TextureLoader::texture(const string &name)
 164 {
 165         tex = &get_collection().get<Texture>(name);
 166         tex.keep();
 167 }
 168
 169 void RenderPass::TextureLoader::texture2d()
 170 {
 171         tex = new Texture2D;
 172         load_sub(static_cast<Texture2D &>(*tex));
 173 }
 174
 175 } // namespace GL
 176 } // namespace Msp