namespace Msp {
namespace GL {
+class Sampler;
class Texture;
+/**
+Keeps track of texture unit related state. Intended for internal use.
+*/
class TexUnit
{
-public:
- TexUnit();
- bool set_texture(const Texture *);
- const Texture *get_texture() { return texture; }
- //TexEnv &get_env() { return env; }
-
- static TexUnit &activate(unsigned);
- static TexUnit ¤t();
private:
+ unsigned index;
const Texture *texture;
- //TexEnv env;
+ const Sampler *sampler;
static std::vector<TexUnit> units;
static TexUnit *cur_unit;
+
+ TexUnit();
+
+public:
+ unsigned get_index() const { return index; }
+ bool set_texture(const Texture *);
+ const Texture *get_texture() const { return texture; }
+ bool set_sampler(const Sampler *);
+ const Sampler *get_sampler() const { return sampler; }
+ void bind();
+
+ static unsigned get_n_units();
+ static TexUnit &get_unit(unsigned);
+ static TexUnit ¤t();
+ static TexUnit *find_unit(const Texture *);
};
} // namespace GL