1/**
2 * Copyright (c) 2006-2023 LOVE Development Team
3 *
4 * This software is provided 'as-is', without any express or implied
5 * warranty. In no event will the authors be held liable for any damages
6 * arising from the use of this software.
7 *
8 * Permission is granted to anyone to use this software for any purpose,
9 * including commercial applications, and to alter it and redistribute it
10 * freely, subject to the following restrictions:
11 *
12 * 1. The origin of this software must not be misrepresented; you must not
13 * claim that you wrote the original software. If you use this software
14 * in a product, an acknowledgment in the product documentation would be
15 * appreciated but is not required.
16 * 2. Altered source versions must be plainly marked as such, and must not be
17 * misrepresented as being the original software.
18 * 3. This notice may not be removed or altered from any source distribution.
19 **/
20
21// LOVE
22#include "Quad.h"
23
24// C
25#include <cstring> // For memcpy
26
27namespace love
28{
29namespace graphics
30{
31
32love::Type Quad::type("Quad", &Object::type);
33
34Quad::Quad(const Quad::Viewport &v, double sw, double sh)
35 : sw(sw)
36 , sh(sh)
37{
38 arrayLayer = 0;
39 refresh(v, sw, sh);
40}
41
42Quad::~Quad()
43{
44}
45
46void Quad::refresh(const Quad::Viewport &v, double sw, double sh)
47{
48 this->viewport = v;
49 this->sw = sw;
50 this->sh = sh;
51
52 // Vertices are ordered for use with triangle strips:
53 // 0---2
54 // | / |
55 // 1---3
56 vertexPositions[0] = Vector2(0.0f, 0.0f);
57 vertexPositions[1] = Vector2(0.0f, (float) v.h);
58 vertexPositions[2] = Vector2((float) v.w, 0.0f);
59 vertexPositions[3] = Vector2((float) v.w, (float) v.h);
60
61 vertexTexCoords[0] = Vector2((float) (v.x / sw), (float) (v.y / sh));
62 vertexTexCoords[1] = Vector2((float) (v.x / sw), (float) ((v.y + v.h) / sh));
63 vertexTexCoords[2] = Vector2((float) ((v.x + v.w) / sw), (float) (v.y / sh));
64 vertexTexCoords[3] = Vector2((float) ((v.x + v.w) / sw), (float) ((v.y + v.h) / sh));
65}
66
67void Quad::setViewport(const Quad::Viewport &v)
68{
69 refresh(v, sw, sh);
70}
71
72Quad::Viewport Quad::getViewport() const
73{
74 return viewport;
75}
76
77double Quad::getTextureWidth() const
78{
79 return sw;
80}
81
82double Quad::getTextureHeight() const
83{
84 return sh;
85}
86
87void Quad::setLayer(int layer)
88{
89 arrayLayer = layer;
90}
91
92int Quad::getLayer() const
93{
94 return arrayLayer;
95}
96
97} // graphics
98} // love
99