#include "texture.h"
#include "texunit.h"
+using namespace std;
+
namespace Msp {
namespace GL {
+istream &operator>>(istream &in, TextureFilter &tf)
+{
+ string str;
+ in>>str;
+
+ if(str=="NEAREST")
+ tf=NEAREST;
+ else if(str=="LINEAR")
+ tf=LINEAR;
+ else if(str=="NEAREST_MIPMAP_NEAREST")
+ tf=NEAREST_MIPMAP_NEAREST;
+ else if(str=="NEAREST_MIPMAP_LINEAR")
+ tf=NEAREST_MIPMAP_LINEAR;
+ else if(str=="LINEAR_MIPMAP_NEAREST")
+ tf=LINEAR_MIPMAP_NEAREST;
+ else if(str=="LINEAR_MIPMAP_LINEAR")
+ tf=LINEAR_MIPMAP_LINEAR;
+ else
+ in.setstate(ios_base::failbit);
+
+ return in;
+}
+
+
void Texture::bind() const
{
if(!target)
throw InvalidState("Attempt to bind a texture without target");
const Texture *cur=TexUnit::current().get_texture();
- if(cur && cur->target!=target)
- glDisable(cur->target);
- if(!cur || cur->target!=target)
- glEnable(target);
- glBindTexture(target, id);
- TexUnit::current().set_texture(this);
+ if(cur!=this)
+ {
+ if(cur && cur->target!=target)
+ glDisable(cur->target);
+ if(!cur || cur->target!=target)
+ glEnable(target);
+ glBindTexture(target, id);
+ TexUnit::current().set_texture(this);
+ }
+}
+
+void Texture::bind_to(unsigned i) const
+{
+ TexUnit::activate(i);
+ bind();
}
void Texture::parameter(GLenum param, int value)
TexUnit::current().set_texture(0);
}
+void Texture::unbind_from(unsigned i)
+{
+ TexUnit::activate(i);
+ unbind();
+}
+
Texture::Texture():
target(0)
{
bind();
}
+
+Texture::Loader::Loader(Texture &t):
+ tex(t)
+{
+ add("min_filter", &Loader::min_filter);
+ add("mag_filter", &Loader::mag_filter);
+ add("generate_mipmap", &Loader::generate_mipmap);
+}
+
+void Texture::Loader::min_filter(TextureFilter f)
+{
+ tex.set_min_filter(f);
+}
+
+void Texture::Loader::mag_filter(TextureFilter f)
+{
+ tex.set_mag_filter(f);
+}
+
+void Texture::Loader::generate_mipmap(bool gm)
+{
+ tex.parameter(GL_GENERATE_MIPMAP_SGIS, gm);
+}
+
} // namespace GL
} // namespace Msp