X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcore%2Fvertexsetup.h;fp=source%2Fcore%2Fvertexsetup.h;h=bae4c5f36c2245d194eacc6b08b1df25658dade7;hp=0000000000000000000000000000000000000000;hb=7aaec9a70b8d7733429bec043f8e33e02956f266;hpb=bec07999d95b76f4b47cffcc564d0cd0afc0435e

diff --git a/source/core/vertexsetup.h b/source/core/vertexsetup.h
new file mode 100644
index 00000000..bae4c5f3
--- /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