3 This file is part of libmspgl
4 Copyright © 2007 Mikko Rasa, Mikkosoft Productions
5 Distributed under the LGPL
17 istream &operator>>(istream &in, TextureFilter &tf)
24 else if(str=="LINEAR")
26 else if(str=="NEAREST_MIPMAP_NEAREST")
27 tf = NEAREST_MIPMAP_NEAREST;
28 else if(str=="NEAREST_MIPMAP_LINEAR")
29 tf = NEAREST_MIPMAP_LINEAR;
30 else if(str=="LINEAR_MIPMAP_NEAREST")
31 tf = LINEAR_MIPMAP_NEAREST;
32 else if(str=="LINEAR_MIPMAP_LINEAR")
33 tf = LINEAR_MIPMAP_LINEAR;
35 in.setstate(ios_base::failbit);
41 void operator>>(const LexicalConverter &c, TextureWrap &tw)
45 else if(c.get()=="CLAMP_TO_EDGE")
47 else if(c.get()=="MIRRORED_REPEAT")
50 throw LexicalError("Invalid input in TextureWrap conversion");
54 Texture::Texture(GLenum t):
56 min_filter(NEAREST_MIPMAP_LINEAR),
66 glGenTextures(1, &id);
71 glDeleteTextures(1, &id);
74 void Texture::update_parameter(int mask) const
79 glTexParameteri(target, GL_TEXTURE_MIN_FILTER, min_filter);
81 glTexParameteri(target, GL_TEXTURE_MAG_FILTER, mag_filter);
83 glTexParameteri(target, GL_TEXTURE_WRAP_S, wrap_s);
85 glTexParameteri(target, GL_TEXTURE_WRAP_T, wrap_t);
87 glTexParameteri(target, GL_TEXTURE_WRAP_R, wrap_r);
88 if(mask&GENERATE_MIPMAP)
89 glTexParameteri(target, GL_GENERATE_MIPMAP_SGIS, gen_mipmap);
91 glTexParameteri(target, GL_TEXTURE_COMPARE_MODE, (compare ? GL_COMPARE_R_TO_TEXTURE : GL_NONE));
93 glTexParameteri(target, GL_TEXTURE_COMPARE_FUNC, cmp_func);
99 void Texture::set_min_filter(TextureFilter f)
102 update_parameter(MIN_FILTER);
105 void Texture::set_mag_filter(TextureFilter f)
108 update_parameter(MAG_FILTER);
111 void Texture::set_wrap(TextureWrap w)
118 void Texture::set_wrap_s(TextureWrap w)
121 update_parameter(WRAP_S);
124 void Texture::set_wrap_t(TextureWrap w)
127 update_parameter(WRAP_T);
130 void Texture::set_wrap_r(TextureWrap w)
133 update_parameter(WRAP_R);
136 void Texture::set_generate_mipmap(bool gm)
139 update_parameter(GENERATE_MIPMAP);
142 void Texture::set_compare_enabled(bool c)
145 update_parameter(COMPARE);
148 void Texture::set_compare_func(Predicate f)
151 update_parameter(COMPARE_FUNC);
154 void Texture::bind() const
157 throw InvalidState("Attempt to bind a texture without target (should never happen)");
159 const Texture *cur = TexUnit::current().get_texture();
162 if(cur && cur->target!=target)
163 glDisable(cur->target);
164 if(!cur || cur->target!=target)
167 glBindTexture(target, id);
168 TexUnit::current().set_texture(this);
172 update_parameter(dirty_params);
178 void Texture::bind_to(unsigned i) const
180 TexUnit::activate(i);
184 const Texture *Texture::current()
186 return TexUnit::current().get_texture();
189 void Texture::unbind()
191 const Texture *cur = TexUnit::current().get_texture();
195 glBindTexture(cur->target, 0);
196 glDisable(cur->target);
197 TexUnit::current().set_texture(0);
200 void Texture::unbind_from(unsigned i)
202 TexUnit::activate(i);
207 Texture::Loader::Loader(Texture &t):
208 DataFile::ObjectLoader<Texture>(t)
210 add("generate_mipmap", &Loader::generate_mipmap);
211 add("mag_filter", &Loader::mag_filter);
212 add("min_filter", &Loader::min_filter);
213 add("wrap", &Loader::wrap);
214 add("wrap_r", &Loader::wrap_r);
215 add("wrap_s", &Loader::wrap_s);
216 add("wrap_t", &Loader::wrap_t);
219 void Texture::Loader::generate_mipmap(bool gm)
221 obj.set_generate_mipmap(gm);
224 void Texture::Loader::mag_filter(TextureFilter f)
226 obj.set_mag_filter(f);
229 void Texture::Loader::min_filter(TextureFilter f)
231 obj.set_min_filter(f);
234 void Texture::Loader::wrap(TextureWrap w)
239 void Texture::Loader::wrap_r(TextureWrap w)
244 void Texture::Loader::wrap_s(TextureWrap w)
249 void Texture::Loader::wrap_t(TextureWrap w)