Rearrange soucre files into subdirectories

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

diff --git a/source/core/vertexsetup.h b/source/core/vertexsetup.h
new file mode 100644 (file)
index 0000000..bae4c5f
--- /dev/null
+++ b/source/core/vertexsetup.h
@@ -0,0 +1,62 @@
+#ifndef MSP_GL_VERTEXSETUP_H_
+#define MSP_GL_VERTEXSETUP_H_
+
+#include "bindable.h"
+#include "vertexformat.h"
+
+namespace Msp {
+namespace GL {
+
+class VertexArray;
+
+/**
+Combines a VertexArray with an index buffer.  This wraps OpenGL's vertex array
+objects.  Intended for internal use.
+*/
+class VertexSetup: public Bindable<VertexSetup>
+{
+private:
+       enum ComponentMask
+       {
+               VERTEX_ARRAY = 1,
+               INSTANCE_ARRAY = 2,
+               INDEX_BUFFER = 4,
+               UNUSED_ATTRIBS = 8,
+               ATTRIB_SHIFT = 4
+       };
+
+       unsigned id;
+       mutable unsigned dirty;
+       const VertexArray *vertex_array;
+       VertexFormat vertex_format;
+       const VertexArray *inst_array;
+       VertexFormat inst_format;
+       const Buffer *index_buffer;
+
+public:
+       VertexSetup();
+       ~VertexSetup();
+
+       void set_vertex_array(const VertexArray &);
+       void set_instance_array(const VertexArray *);
+       void set_index_buffer(const Buffer &);
+       void refresh();
+       const VertexArray *get_vertex_array() const { return vertex_array; }
+       const VertexArray *get_instance_array() const { return inst_array; }
+       const Buffer *get_index_buffer() const { return index_buffer; }
+
+private:
+       static unsigned get_attribs(const VertexFormat &);
+       static unsigned get_update_mask(unsigned, const VertexFormat &, const VertexArray &);
+       void update(unsigned) const;
+       void update_vertex_array(const VertexArray &, unsigned, unsigned, bool) const;
+
+public:
+       void bind() const;
+       static void unbind();
+};
+
+} // namespace GL
+} // namespace Msp
+
+#endif