-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
#ifndef MSP_GL_UNIFORM_H_
#define MSP_GL_UNIFORM_H_
+#include <algorithm>
+#include "program.h"
+
namespace Msp {
namespace GL {
-class Program;
-
class Uniform
{
protected:
public:
virtual ~Uniform() { }
- virtual void apply(int) const =0;
- virtual Uniform *clone() const =0;
+ virtual void apply(int) const = 0;
+ virtual void store(const Program::UniformInfo &, void *) const = 0;
+ virtual Uniform *clone() const = 0;
};
-class Uniform1i: public Uniform
+template<typename T>
+class UniformScalar: public Uniform
{
+public:
+ typedef T BaseType;
+ typedef T Type;
+
private:
- int v;
+ Type value;
public:
- Uniform1i(int v_);
+ UniformScalar(Type v): value(v) { }
- virtual void apply(int index) const;
- virtual Uniform1i *clone() const;
-};
+ void set(Type v) { value = v; }
+ Type get() const { return value; }
-class Uniform1f: public Uniform
-{
-private:
- float v;
+ virtual void apply(int index) const
+ { apply(index, 1, &value); }
-public:
- Uniform1f(float v_);
+ static void apply(int, unsigned, const T *);
+
+ virtual void store(const Program::UniformInfo &info, void *buffer) const
+ { store(info, buffer, &value); }
+
+ static void store(const Program::UniformInfo &, void *buffer, const T *value)
+ { *reinterpret_cast<T *>(buffer) = *value; }
- virtual void apply(int index) const;
- virtual Uniform1f *clone() const;
+ virtual UniformScalar *clone() const
+ { return new UniformScalar(value); }
};
+typedef UniformScalar<int> Uniform1i;
+typedef UniformScalar<float> Uniform1f;
-class Uniform2f: public Uniform
+
+template<typename T, unsigned vecsize>
+class UniformVector: public Uniform
{
+public:
+ typedef T BaseType;
+ typedef T Type[vecsize];
+
private:
- float v[2];
+ Type value;
public:
- Uniform2f(float v0, float v1);
+ UniformVector(const T *vp) { set(vp); }
+
+ void set(const T *vp)
+ { std::copy(vp, vp+vecsize, value); }
- virtual void apply(int index) const;
- virtual Uniform2f *clone() const;
+ BaseType get(unsigned i) const { return value[i]; }
+
+ virtual void apply(int index) const
+ { apply(index, 1, value); }
+
+ static void apply(int index, unsigned size, const T *value);
+
+ virtual void store(const Program::UniformInfo &info, void *buffer) const
+ { store(info, buffer, value); }
+
+ static void store(const Program::UniformInfo &, void *buffer, const T *value)
+ { std::copy(value, value+vecsize, reinterpret_cast<T *>(buffer)); }
+
+ virtual UniformVector *clone() const
+ { return new UniformVector(value); }
};
+typedef UniformVector<int, 2> Uniform2i;
+typedef UniformVector<float, 2> Uniform2f;
+typedef UniformVector<int, 3> Uniform3i;
+typedef UniformVector<float, 3> Uniform3f;
+typedef UniformVector<int, 4> Uniform4i;
+typedef UniformVector<float, 4> Uniform4f;
+
-class Uniform3f: public Uniform
+template<typename T, unsigned rows, unsigned cols>
+class UniformMatrix: public Uniform
{
+public:
+ typedef T BaseType;
+ typedef T Type[rows*cols];
+
private:
- float v[3];
+ Type value;
public:
- Uniform3f(float v0, float v1, float v2);
+ UniformMatrix(const T *vp) { set(vp); }
- virtual void apply(int index) const;
- virtual Uniform3f *clone() const;
+ void set(const T *vp)
+ { std::copy(vp, vp+rows*cols, value); }
+
+ virtual void apply(int index) const
+ { apply(index, 1, value); }
+
+ static void apply(int index, unsigned size, const T *value);
+
+ virtual void store(const Program::UniformInfo &info, void *buffer) const
+ { store(info, buffer, value); }
+
+ static void store(const Program::UniformInfo &info, void *buffer, const T *value)
+ {
+ for(unsigned i=0; i<cols; ++i)
+ UniformVector<T, rows>::store(info, reinterpret_cast<char *>(buffer)+i*info.matrix_stride, value+i*rows);
+ }
+
+ virtual UniformMatrix *clone() const
+ { return new UniformMatrix(value); }
};
+// The naming of these types follows the OpenGL convention of columns x rows
+typedef UniformMatrix<float, 2, 2> UniformMatrix2x2f;
+typedef UniformMatrix<float, 2, 3> UniformMatrix3x2f;
+typedef UniformMatrix<float, 2, 4> UniformMatrix4x2f;
+typedef UniformMatrix<float, 3, 2> UniformMatrix2x3f;
+typedef UniformMatrix<float, 3, 3> UniformMatrix3x3f;
+typedef UniformMatrix<float, 3, 4> UniformMatrix4x3f;
+typedef UniformMatrix<float, 4, 2> UniformMatrix2x4f;
+typedef UniformMatrix<float, 4, 3> UniformMatrix3x4f;
+typedef UniformMatrix<float, 4, 4> UniformMatrix4x4f;
+
-class Uniform4f: public Uniform
+template<typename T>
+class UniformArray: public Uniform
{
private:
- float v[4];
+ typedef typename T::BaseType BaseType;
+ enum { elemsize = sizeof(typename T::Type)/sizeof(typename T::BaseType) };
-public:
- Uniform4f(float v0, float v1, float v2, float v3);
+ unsigned size_;
+ BaseType *values;
- virtual void apply(int index) const;
- virtual Uniform4f *clone() const;
+public:
+ UniformArray(unsigned n, const BaseType *vp):
+ size_(n),
+ values(new BaseType[elemsize*size_])
+ {
+ set(vp);
+ }
+
+ ~UniformArray()
+ {
+ delete[] values;
+ }
+
+ unsigned size() const { return size_; }
+
+ void set(const BaseType *vp)
+ { std::copy(vp, vp+elemsize*size_, values); }
+
+ virtual void apply(int index) const
+ { T::apply(index, size_, values); }
+
+ virtual void store(const Program::UniformInfo &info, void *buffer) const
+ {
+ for(unsigned i=0; i<size_; ++i)
+ T::store(info, reinterpret_cast<char *>(buffer)+i*info.array_stride, values+i*elemsize);
+ }
+
+ virtual UniformArray *clone() const
+ { return new UniformArray(size_, values); }
};
} // namespace GL
projects / libs / gl.git / blobdiff