1 #ifndef MSP_GL_UNIFORM_H_
2 #define MSP_GL_UNIFORM_H_
14 Uniform(const Uniform &);
15 Uniform &operator=(const Uniform &);
17 virtual ~Uniform() { }
19 virtual void apply(int) const = 0;
20 virtual Uniform *clone() const = 0;
25 class UniformScalar: public Uniform
35 UniformScalar(Type v): value(v) { }
37 virtual void apply(int index) const
38 { apply(index, 1, &value); }
40 static void apply(int, unsigned, const T *);
42 virtual UniformScalar *clone() const
43 { return new UniformScalar(value); }
46 typedef UniformScalar<int> Uniform1i;
47 typedef UniformScalar<float> Uniform1f;
50 template<typename T, unsigned vecsize>
51 class UniformVector: public Uniform
55 typedef T Type[vecsize];
61 UniformVector(const T *vp)
62 { std::copy(vp, vp+vecsize, value); }
64 virtual void apply(int index) const
65 { apply(index, 1, value); }
67 static void apply(int index, unsigned size, const T *value);
69 virtual UniformVector *clone() const
70 { return new UniformVector(value); }
73 typedef UniformVector<float, 2> Uniform2f;
74 typedef UniformVector<float, 3> Uniform3f;
75 typedef UniformVector<float, 4> Uniform4f;
78 template<typename T, unsigned rows, unsigned cols>
79 class UniformMatrix: public Uniform
83 typedef T Type[rows*cols];
89 UniformMatrix(const T *vp)
90 { std::copy(vp, vp+rows*cols, value); }
92 virtual void apply(int index) const
93 { apply(index, 1, value); }
95 static void apply(int index, unsigned size, const T *value);
97 virtual UniformMatrix *clone() const
98 { return new UniformMatrix(value); }
101 typedef UniformMatrix<float, 4, 4> UniformMatrix4x4f;
105 class UniformArray: public Uniform
108 typedef typename T::BaseType BaseType;
114 UniformArray(unsigned n, const BaseType *vp):
117 unsigned elemsize = sizeof(typename T::Type)/sizeof(typename T::BaseType);
118 values = new BaseType[elemsize*size];
119 std::copy(vp, vp+elemsize*size, values);
122 virtual void apply(int index) const
123 { T::apply(index, size, values); }
125 virtual UniformArray *clone() const
126 { return new UniformArray(size, values); }