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- /**
- * Copyright (c) 2006-2016 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.
- **/
- // LOVE
- #include "Quad.h"
- // C
- #include <cstring> // For memcpy
- namespace love
- {
- namespace graphics
- {
- Quad::Quad(const Quad::Viewport &v, double sw, double sh)
- : sw(sw)
- , sh(sh)
- {
- memset(vertices, 255, sizeof(Vertex) * 4);
- refresh(v, sw, sh);
- }
- Quad::~Quad()
- {
- }
- void Quad::refresh(const Quad::Viewport &v, double sw, double sh)
- {
- viewport = v;
- // Vertices are ordered for use with triangle strips:
- // 0----2
- // | / |
- // | / |
- // 1----3
- vertices[0].x = 0.0f;
- vertices[0].y = 0.0f;
- vertices[1].x = 0.0f;
- vertices[1].y = (float) v.h;
- vertices[2].x = (float) v.w;
- vertices[2].y = 0.0f;
- vertices[3].x = (float) v.w;
- vertices[3].y = (float) v.h;
- vertices[0].s = (float) (v.x/sw);
- vertices[0].t = (float) (v.y/sh);
- vertices[1].s = (float) (v.x/sw);
- vertices[1].t = (float) ((v.y+v.h)/sh);
- vertices[2].s = (float) ((v.x+v.w)/sw);
- vertices[2].t = (float) (v.y/sh);
- vertices[3].s = (float) ((v.x+v.w)/sw);
- vertices[3].t = (float) ((v.y+v.h)/sh);
- }
- void Quad::setViewport(const Quad::Viewport &v)
- {
- refresh(v, sw, sh);
- }
- Quad::Viewport Quad::getViewport() const
- {
- return viewport;
- }
- double Quad::getTextureWidth() const
- {
- return sw;
- }
- double Quad::getTextureHeight() const
- {
- return sh;
- }
- const Vertex *Quad::getVertices() const
- {
- return vertices;
- }
- } // graphics
- } // love
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