love.graphics internal Buffer objects are no longer OpenGL-specific.

--HG--
branch : minor

src/modules/graphics/ParticleSystem.h

@@ -29,6 +29,7 @@
 #include "Color.h"
 #include "Quad.h"
 #include "Texture.h"
+#include "Buffer.h"
 
 // STL
 #include <vector>
@@ -38,6 +39,8 @@ namespace love
 namespace graphics
 {
 
+class Graphics;
+
 /**
  * A class for creating, moving and drawing particles.
  * A big thanks to bobthebloke.org
@@ -81,7 +84,7 @@ public:
 	/**
 	 * Creates a particle system with the specified buffer size and texture.
 	 **/
-	ParticleSystem(Texture *texture, uint32 buffer);
+	ParticleSystem(Graphics *gfx, Texture *texture, uint32 buffer);
 	ParticleSystem(const ParticleSystem &p);
 
 	/**
@@ -548,6 +551,8 @@ protected:
 		int quadIndex;
 	};
 
+	bool prepareDraw(Graphics *gfx, const Matrix4 &m);
+
 	// Pointer to the beginning of the allocated memory.
 	Particle *pMem;
 
@@ -647,6 +652,11 @@ protected:
 
 	bool relativeRotation;
 
+	Buffer *buffer;
+
+	// Vertex index buffer.
+	QuadIndices quadIndices;
+
 private:
 
 	void resetOffset();