Renamed Frame to Quad; added drawq/addq; fixed some bugs.

src/modules/graphics/opengl/Quad.cpp

@@ -0,0 +1,105 @@
+/**
+* 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.
+**/
+
+#include "Quad.h"
+#include <common/Matrix.h>
+
+// STD
+#include <cstring> // For memcpy
+
+namespace love
+{
+namespace graphics
+{
+namespace opengl
+{
+	Quad::Quad(const Viewport & v, int sw, int sh)
+		: sw(sw), sh(sh)
+	{
+		memset(vertices, 255, sizeof(vertex)*4);
+		refresh(v, sw, sh);
+	}
+
+	Quad::~Quad()
+	{
+	}
+
+	void Quad::refresh(const Viewport & v, int sw, int sh)
+	{
+		viewport = v;
+
+		vertices[0].x = 0; 
+		vertices[0].y = 0;
+		vertices[1].x = 0; 
+		vertices[1].y = (float)v.h;
+		vertices[2].x = (float)v.w; 
+		vertices[2].y = (float)v.h;
+		vertices[3].x = (float)v.w; 
+		vertices[3].y = 0;
+		
+		vertices[0].s = (float)v.x/(float)sw; 
+		vertices[0].t = (float)v.y/(float)sh;
+		vertices[1].s = (float)v.x/(float)sw; 
+		vertices[1].t = (float)(v.y+v.h)/(float)sh;
+		vertices[2].s = (float)(v.x+v.w)/(float)sw; 
+		vertices[2].t = (float)(v.y+v.h)/(float)sh;
+		vertices[3].s = (float)(v.x+v.w)/(float)sw; 
+		vertices[3].t = (float)v.y/(float)sh;
+	}
+
+	void Quad::setViewport(const Quad::Viewport & v)
+	{
+		refresh(v, sw, sh);
+	}
+
+	Quad::Viewport Quad::getViewport() const
+	{
+		return viewport;	
+	}
+	
+	void Quad::flip(bool x, bool y)
+	{
+		vertex temp[4];
+		if (x)
+		{
+			memcpy(temp, vertices, sizeof(vertex)*4);
+			vertices[0].s = temp[3].s; vertices[0].t = temp[3].t;
+			vertices[1].s = temp[2].s; vertices[1].t = temp[2].t;
+			vertices[2].s = temp[1].s; vertices[2].t = temp[1].t;
+			vertices[3].s = temp[0].s; vertices[3].t = temp[0].t;
+		}
+		if (y)
+		{
+			memcpy(temp, vertices, sizeof(vertex)*4);
+			vertices[0].s = temp[1].s; vertices[0].t = temp[1].t;
+			vertices[1].s = temp[0].s; vertices[1].t = temp[0].t;
+			vertices[2].s = temp[3].s; vertices[2].t = temp[3].t;
+			vertices[3].s = temp[2].s; vertices[3].t = temp[2].t;
+		}
+	}
+
+	const vertex * Quad::getVertices() const
+	{
+		return vertices;
+	}
+
+} // opengl
+} // graphics
+} // love