source/renderpass.cpp

   1 /* $Id$
   2
   3 This file is part of libmspgl
   4 Copyright © 2007-2008, 2010-2011  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include <msp/core/refptr.h>
   9 #include <msp/datafile/collection.h>
  10 #include <msp/strings/formatter.h>
  11 #include "material.h"
  12 #include "renderpass.h"
  13 #include "program.h"
  14 #include "programdata.h"
  15 #include "texenv.h"
  16 #include "texture.h"
  17 #include "texture2d.h"
  18 #include "texturing.h"
  19
  20 using namespace std;
  21
  22 namespace Msp {
  23 namespace GL {
  24
  25 RenderPass::RenderPass():
  26         shprog(0),
  27         shdata(0),
  28         material(0),
  29         texturing(0)
  30 { }
  31
  32 RenderPass::RenderPass(const RenderPass &other):
  33         shprog(other.shprog),
  34         shdata(other.shdata ? new ProgramData(*other.shdata) : 0),
  35         material(other.material),
  36         texturing(other.texturing ? new Texturing(*other.texturing) : 0)
  37 { }
  38
  39 RenderPass::~RenderPass()
  40 {
  41         delete shdata;
  42         delete texturing;
  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
  60 RenderPass::Loader::Loader(RenderPass &p):
  61         DataFile::CollectionObjectLoader<RenderPass>(p, 0)
  62 {
  63         init();
  64 }
  65
  66 RenderPass::Loader::Loader(RenderPass &p, Collection &c):
  67         DataFile::CollectionObjectLoader<RenderPass>(p, &c)
  68 {
  69         init();
  70 }
  71
  72 void RenderPass::Loader::init()
  73 {
  74         allow_pointer_reload = false;
  75
  76         add("shader",   &RenderPass::shprog);
  77         add("material", &Loader::material_inline);
  78         add("material", &Loader::material);
  79         add("texunit",  &Loader::texunit);
  80         add("uniforms", &Loader::uniforms);
  81 }
  82
  83 void RenderPass::Loader::finish()
  84 {
  85         // XXX Make shdata optional
  86         if(obj.shprog && !obj.shdata)
  87                 obj.shdata = new ProgramData;
  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::uniforms()
 112 {
 113         if(!obj.shprog)
 114                 throw InvalidState("Can't load uniforms without a shader program");
 115         if(!obj.shdata)
 116                 obj.shdata = new ProgramData;
 117         load_sub(*obj.shdata, *obj.shprog);
 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 Exception("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