X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Funiform.h;h=bc78bab8c1c891ad55086397f2bbcc9250d949a4;hp=216d3be6a65c37cf5b2694a004363bf98a306a18;hb=bec07999d95b76f4b47cffcc564d0cd0afc0435e;hpb=0070eec93efbf27bcc70720141d8730b059eb964

diff --git a/source/uniform.h b/source/uniform.h
index 216d3be6..bc78bab8 100644
--- a/source/uniform.h
+++ b/source/uniform.h
@@ -2,6 +2,7 @@
 #define MSP_GL_UNIFORM_H_
 
 #include <algorithm>
+#include "program.h"
 
 namespace Msp {
 namespace GL {
@@ -17,6 +18,7 @@ public:
 	virtual ~Uniform() { }
 
 	virtual void apply(int) const = 0;
+	virtual void store(const Program::UniformInfo &, void *) const = 0;
 	virtual Uniform *clone() const = 0;
 };
 
@@ -34,11 +36,21 @@ private:
 public:
 	UniformScalar(Type v): value(v) { }
 
+	void set(Type v) { value = v; }
+
+	Type get() const { return value; }
+
 	virtual void apply(int index) const
 	{ apply(index, 1, &value); }
 
 	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 UniformScalar *clone() const
 	{ return new UniformScalar(value); }
 };
@@ -58,20 +70,33 @@ private:
 	Type value;
 
 public:
-	UniformVector(const T *vp)
+	UniformVector(const T *vp) { set(vp); }
+
+	void set(const T *vp)
 	{ std::copy(vp, vp+vecsize, value); }
 
+	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;
 
 
@@ -86,7 +111,9 @@ private:
 	Type value;
 
 public:
-	UniformMatrix(const T *vp)
+	UniformMatrix(const T *vp) { set(vp); }
+
+	void set(const T *vp)
 	{ std::copy(vp, vp+rows*cols, value); }
 
 	virtual void apply(int index) const
@@ -94,10 +121,28 @@ public:
 
 	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;
 
 
@@ -106,24 +151,40 @@ class UniformArray: public Uniform
 {
 private:
 	typedef typename T::BaseType BaseType;
+	enum { elemsize = sizeof(typename T::Type)/sizeof(typename T::BaseType) };
 
+	unsigned size_;
 	BaseType *values;
-	unsigned size;
 
 public:
 	UniformArray(unsigned n, const BaseType *vp):
-		size(n)
+		size_(n),
+		values(new BaseType[elemsize*size_])
+	{
+		set(vp);
+	}
+
+	~UniformArray()
 	{
-		unsigned elemsize = sizeof(typename T::Type)/sizeof(typename T::BaseType);
-		values = new BaseType[elemsize*size];
-		std::copy(vp, vp+elemsize*size, values);
+		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); }
+	{ 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); }
+	{ return new UniformArray(size_, values); }
 };
 
 } // namespace GL