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         tex_names(other.tex_names)
  38 { }
  39
  40 RenderPass::~RenderPass()
  41 {
  42         delete shdata;
  43         delete texturing;
  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
  69 RenderPass::Loader::Loader(RenderPass &p):
  70         DataFile::CollectionObjectLoader<RenderPass>(p, 0)
  71 {
  72         init();
  73 }
  74
  75 RenderPass::Loader::Loader(RenderPass &p, Collection &c):
  76         DataFile::CollectionObjectLoader<RenderPass>(p, &c)
  77 {
  78         init();
  79 }
  80
  81 void RenderPass::Loader::init()
  82 {
  83         allow_pointer_reload = false;
  84
  85         add("shader",   &RenderPass::shprog);
  86         add("material", &Loader::material_inline);
  87         add("material", &Loader::material);
  88         add("texunit",  &Loader::texunit);
  89         add("texunit",  &Loader::texunit_named);
  90         add("uniforms", &Loader::uniforms);
  91 }
  92
  93 void RenderPass::Loader::material_inline()
  94 {
  95         RefPtr<Material> mat = new Material;
  96         load_sub(*mat);
  97         obj.material = mat;
  98 }
  99
 100 void RenderPass::Loader::material(const string &name)
 101 {
 102         obj.material = get_collection().get<Material>(name);
 103         obj.material.keep();
 104 }
 105
 106 void RenderPass::Loader::texunit(unsigned i)
 107 {
 108         if(!obj.texturing)
 109                 obj.texturing = new Texturing;
 110         TextureLoader ldr(*obj.texturing, i, coll);
 111         load_sub_with(ldr);
 112 }
 113
 114 void RenderPass::Loader::texunit_named(unsigned i, const string &n)
 115 {
 116         texunit(i);
 117         obj.tex_names[n] = i;
 118 }
 119
 120 void RenderPass::Loader::uniforms()
 121 {
 122         if(!obj.shprog)
 123                 throw InvalidState("Can't load uniforms without a shader program");
 124         if(!obj.shdata)
 125                 obj.shdata = new ProgramData(*obj.shprog);
 126         load_sub(*obj.shdata);
 127 }
 128
 129
 130 RenderPass::TextureLoader::TextureLoader(Texturing &t, unsigned i, Collection *c):
 131         DataFile::CollectionObjectLoader<Texturing>(t, c),
 132         index(i)
 133 {
 134         add("texture",   &TextureLoader::texture);
 135         add("texture2d", &TextureLoader::texture2d);
 136 }
 137
 138 void RenderPass::TextureLoader::finish()
 139 {
 140         if(tex)
 141         {
 142                 if(env)
 143                         obj.attach(index, *tex, *env);
 144                 else
 145                         obj.attach(index, *tex);
 146                 tex.release();
 147                 env.release();
 148         }
 149 }
 150
 151 void RenderPass::TextureLoader::texenv()
 152 {
 153         throw Exception("TexEnvs can't be loaded yet");
 154         /*env = new TexEnv;
 155         load_sub(*env);*/
 156 }
 157
 158 void RenderPass::TextureLoader::texture(const string &name)
 159 {
 160         tex = get_collection().get<Texture>(name);
 161         tex.keep();
 162 }
 163
 164 void RenderPass::TextureLoader::texture2d()
 165 {
 166         tex = new Texture2D;
 167         load_sub(static_cast<Texture2D &>(*tex));
 168 }
 169
 170 } // namespace GL
 171 } // namespace Msp