+++ /dev/null
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#include "except.h"
-#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!=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)
-{
- maybe_bind();
-
- glTexParameteri(target, param, value);
-}
-
-void Texture::parameter(GLenum param, float value)
-{
- maybe_bind();
-
- glTexParameterf(target, param, value);
-}
-
-Texture::~Texture()
-{
- glDeleteTextures(1, &id);
-}
-
-void Texture::unbind()
-{
- const Texture *cur=TexUnit::current().get_texture();
- if(!cur)
- return;
-
- glBindTexture(cur->target, 0);
- glDisable(cur->target);
- TexUnit::current().set_texture(0);
-}
-
-void Texture::unbind_from(unsigned i)
-{
- TexUnit::activate(i);
- unbind();
-}
-
-Texture::Texture():
- target(0)
-{
- glGenTextures(1, &id);
-}
-
-void Texture::maybe_bind() const
-{
- if(TexUnit::current().get_texture()!=this)
- 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