Rearrange soucre files into subdirectories

[libs/gl.git] / source / core / vertexarray.h

diff --git a/source/core/vertexarray.h b/source/core/vertexarray.h
new file mode 100644 (file)
index 0000000..95a6ec2
--- /dev/null
+++ b/source/core/vertexarray.h
@@ -0,0 +1,77 @@
+#ifndef MSP_GL_VERTEXARRAY_H_
+#define MSP_GL_VERTEXARRAY_H_
+
+#include <climits>
+#include <vector>
+#include <msp/core/refptr.h>
+#include <msp/datafile/loader.h>
+#include "bufferable.h"
+#include "datatype.h"
+#include "primitivetype.h"
+#include "vertexarraybuilder.h"
+#include "vertexformat.h"
+
+namespace Msp {
+namespace GL {
+
+class Buffer;
+
+/**
+Stores vertex data.
+
+The array's contents can be modified with the append and modify methods.  To
+obtain the location of an individual component within the vertex, use
+VertexFormat::offset.
+
+A higher-level interface for filling in vertex data is available in the
+VertexArrayBuilder class.
+*/
+class VertexArray: public Bufferable
+{
+public:
+       class Loader: public DataFile::Loader, public VertexArrayBuilder
+       {
+       public:
+               Loader(VertexArray &);
+       };
+
+private:
+       VertexFormat format;
+       std::vector<float> data;
+       unsigned stride;
+
+       VertexArray(const VertexArray &);
+       VertexArray &operator=(const VertexArray &);
+public:
+       VertexArray(const VertexFormat &);
+
+       /// Resets the VertexArray to a different format.  All data is cleared.
+       void reset(const VertexFormat &);
+
+       const VertexFormat &get_format() const { return format; }
+
+       /// Clears all vertices from the array.
+       void clear();
+
+       /// Reserve space for vertices.
+       void reserve(unsigned);
+
+       /// Append a new vertex at the end of the array and return its location.
+       float *append();
+
+       /// Returns the location of a vertex for modification.
+       float *modify(unsigned);
+private:
+       virtual unsigned get_data_size() const;
+       virtual const void *get_data_pointer() const { return &data[0]; }
+
+public:
+       unsigned size() const { return data.size()/stride; }
+       const std::vector<float> &get_data() const { return data; }
+       const float *operator[](unsigned i) const { return &data[0]+i*stride; }
+};
+
+} // namespace GL
+} // namespace Msp
+
+#endif