Initial Mercurial commit.

src/modules/graphics/opengl/VertexBuffer.h

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+/**
+* Copyright (c) 2006-2009 LOVE Development Team
+* 
+* This software is provided 'as-is', without any express or implied
+* warranty.  In no event will the authors be held liable for any damages
+* arising from the use of this software.
+* 
+* Permission is granted to anyone to use this software for any purpose,
+* including commercial applications, and to alter it and redistribute it
+* freely, subject to the following restrictions:
+* 
+* 1. The origin of this software must not be misrepresented; you must not
+*    claim that you wrote the original software. If you use this software
+*    in a product, an acknowledgment in the product documentation would be
+*    appreciated but is not required.
+* 2. Altered source versions must be plainly marked as such, and must not be
+*    misrepresented as being the original software.
+* 3. This notice may not be removed or altered from any source distribution.
+**/
+
+#ifndef LOVE_GRAPHICS_OPENGL_VERTEX_BUFFER_H
+#define LOVE_GRAPHICS_OPENGL_VERTEX_BUFFER_H
+
+// LOVE
+#include <common/constants.h>
+#include <common/math.h>
+#include <common/Object.h>
+#include <common/Vector.h>
+#include <common/Matrix.h>
+#include <graphics/Drawable.h>
+
+// Module.
+#include "Image.h"
+
+// OpenGL
+#include "GLee.h"
+#include <SDL/SDL_opengl.h>
+
+namespace love
+{
+namespace graphics
+{
+namespace opengl
+{
+	class VertexBuffer : public Drawable
+	{
+		friend class SpriteBatch;
+	private:
+
+		vertex * vertices;
+
+		// Max number of vertices in the buffer.
+		int size;
+
+		// The next free element.
+		int next;
+
+		// The texture (optional).
+		Image * image;
+
+		// Contains the vbo_buffer.
+		GLuint vbo_buf;
+
+		// The uage hint for the vertex buffer.
+		int usage;
+		int gl_usage;
+
+		// The type of primitives we're drawing.
+		int type;
+		int gl_type;
+
+	private:
+
+		bool useVBO() const;
+		void update(int pos, int size);
+
+	public:
+
+		VertexBuffer(Image * image, int size, int type, int usage);
+		virtual ~VertexBuffer();
+
+		void setType(int type);
+		int getType() const;
+
+		void add(float x, float y, float s, float t, unsigned char r, unsigned char g, unsigned char b, unsigned char a);
+		void add(float x, float y, float s, float t);
+		void clear();
+
+		// Implements Drawable.
+		void draw(float x, float y, float angle, float sx, float sy, float ox, float oy) const;
+
+	}; // VertexBuffer
+
+} // opengl
+} // graphics
+} // love
+
+#endif // LOVE_GRAPHICS_OPENGL_VERTEX_BUFFER_H