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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include "cppunit/TestAssert.h"
21 : #include "cppunit/TestFixture.h"
22 : #include "cppunit/extensions/HelperMacros.h"
23 :
24 : #include <basegfx/vector/b2isize.hxx>
25 : #include <basegfx/range/b2ibox.hxx>
26 : #include <basegfx/point/b2ipoint.hxx>
27 : #include <basegfx/matrix/b2dhommatrix.hxx>
28 : #include <basegfx/polygon/b2dpolygon.hxx>
29 : #include <basegfx/polygon/b2dpolygontools.hxx>
30 : #include <basegfx/polygon/b2dpolypolygon.hxx>
31 : #include <basegfx/polygon/b2dpolypolygontools.hxx>
32 :
33 : #include <basebmp/color.hxx>
34 : #include <basebmp/scanlineformats.hxx>
35 : #include <basebmp/bitmapdevice.hxx>
36 : #include "tools.hxx"
37 :
38 : using namespace ::basebmp;
39 :
40 : namespace
41 : {
42 21 : class PolyTest : public CppUnit::TestFixture
43 : {
44 : private:
45 : BitmapDeviceSharedPtr mpDevice1bpp;
46 : BitmapDeviceSharedPtr mpDevice32bpp;
47 :
48 2 : void implTestEmpty(const BitmapDeviceSharedPtr& rDevice)
49 : {
50 2 : const Color aCol(0xFFFFFFFF);
51 2 : const Color aBgCol(0);
52 2 : rDevice->clear(aBgCol);
53 2 : basegfx::B2DPolyPolygon aPoly;
54 :
55 : basegfx::tools::importFromSvgD(
56 : aPoly,
57 2 : OUString( "M2 2 l7 7 z" ) );
58 : rDevice->fillPolyPolygon(
59 : aPoly,
60 : aCol,
61 2 : DrawMode_PAINT );
62 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 0",
63 2 : countPixel( rDevice, aCol ) == 0);
64 :
65 : // --------------------------------------------------
66 :
67 2 : rDevice->clear(aBgCol);
68 2 : aPoly.clear();
69 : basegfx::tools::importFromSvgD(
70 : aPoly,
71 2 : OUString( "M7 2 l-6 6 z" ) );
72 : rDevice->fillPolyPolygon(
73 : aPoly,
74 : aCol,
75 2 : DrawMode_PAINT );
76 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 0(b)",
77 4 : countPixel( rDevice, aCol ) == 0);
78 2 : }
79 :
80 2 : void implTestHairline(const BitmapDeviceSharedPtr& rDevice)
81 : {
82 2 : const Color aCol(0xFFFFFFFF);
83 2 : const Color aBgCol(0);
84 2 : rDevice->clear(aBgCol);
85 2 : basegfx::B2DPolyPolygon aPoly;
86 :
87 : basegfx::tools::importFromSvgD(
88 : aPoly,
89 2 : OUString( "M2 2 h1 l7 7 h-1 z" ) );
90 : rDevice->fillPolyPolygon(
91 : aPoly,
92 : aCol,
93 2 : DrawMode_PAINT );
94 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 7",
95 2 : countPixel( rDevice, aCol ) == 7);
96 :
97 : // --------------------------------------------------
98 :
99 2 : rDevice->clear(aBgCol);
100 2 : aPoly.clear();
101 : basegfx::tools::importFromSvgD(
102 : aPoly,
103 2 : OUString( "M7 2 h-1 l-6 6 h1 z" ) );
104 : rDevice->fillPolyPolygon(
105 : aPoly,
106 : aCol,
107 2 : DrawMode_PAINT );
108 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 6",
109 2 : countPixel( rDevice, aCol ) == 6);
110 :
111 : // --------------------------------------------------
112 :
113 2 : rDevice->clear(aBgCol);
114 2 : aPoly.clear();
115 : basegfx::tools::importFromSvgD(
116 : aPoly,
117 2 : OUString( "M0 0 l7 7 h-1 l-5-7 z" ) );
118 : rDevice->fillPolyPolygon(
119 : aPoly,
120 : aCol,
121 2 : DrawMode_PAINT );
122 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 3",
123 4 : countPixel( rDevice, aCol ) == 3);
124 2 : }
125 :
126 2 : void implTestPolyPoly(const BitmapDeviceSharedPtr& rDevice)
127 : {
128 2 : const Color aCol(0xFFFFFFFF);
129 2 : const Color aBgCol(0);
130 2 : rDevice->clear(aBgCol);
131 2 : basegfx::B2DPolyPolygon aPoly;
132 :
133 : basegfx::tools::importFromSvgD( aPoly,
134 2 : OUString( "M0 0 h7 v7 h-7 z M2 2 v3 h3 v-3 z" ) );
135 :
136 : rDevice->fillPolyPolygon(
137 : aPoly,
138 : aCol,
139 2 : DrawMode_PAINT );
140 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 40",
141 4 : countPixel( rDevice, aCol ) == 40);
142 2 : }
143 :
144 2 : void implTestPolyPolyClip(const BitmapDeviceSharedPtr& rDevice)
145 : {
146 2 : const Color aCol(0xFFFFFFFF);
147 2 : const Color aBgCol(0);
148 2 : rDevice->clear(aBgCol);
149 2 : basegfx::B2DPolyPolygon aPoly;
150 :
151 : basegfx::tools::importFromSvgD( aPoly,
152 2 : OUString( "M0 0 h7 v7 h-7 z M2 2 v3 h3 v-3 z" ) );
153 2 : basegfx::B2DHomMatrix aMat;
154 2 : aMat.translate(-3,-3);
155 2 : aMat.rotate( 1.7 );
156 2 : aMat.translate(6,5);
157 2 : aPoly.transform(aMat);
158 :
159 : rDevice->fillPolyPolygon(
160 : aPoly,
161 : aCol,
162 2 : DrawMode_PAINT );
163 :
164 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 39",
165 2 : countPixel( rDevice, aCol ) == 39);
166 :
167 : BitmapDeviceSharedPtr pClippedDevice(
168 : subsetBitmapDevice( rDevice,
169 2 : basegfx::B2IBox(3,3,5,8) ));
170 4 : CPPUNIT_ASSERT_MESSAGE("size of subsetted device is not (2,5)",
171 2 : pClippedDevice->getSize() == basegfx::B2IVector(2,5));
172 :
173 2 : rDevice->clear(aBgCol);
174 : pClippedDevice->fillPolyPolygon(
175 : aPoly,
176 : aCol,
177 2 : DrawMode_PAINT );
178 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 7",
179 4 : countPixel( rDevice, aCol ) == 7);
180 2 : }
181 :
182 2 : void implTestLineDrawClip(const BitmapDeviceSharedPtr& rDevice)
183 : {
184 2 : const Color aCol(0xFFFFFFFF);
185 2 : const Color aBgCol(0);
186 2 : rDevice->clear(aBgCol);
187 :
188 : // create rectangular subset, such that we can 'see' extra
189 : // pixel outside
190 : BitmapDeviceSharedPtr pClippedDevice=(
191 : subsetBitmapDevice( rDevice,
192 2 : basegfx::B2IBox(3,3,5,9) ));
193 :
194 : // trigger "alternate bresenham" case in
195 : // clippedlinerenderer.hxx, first point not clipped
196 2 : const basegfx::B2IPoint aPt1(3,3);
197 2 : const basegfx::B2IPoint aPt2(4,2);
198 2 : pClippedDevice->drawLine( aPt1, aPt2, aCol, DrawMode_PAINT );
199 :
200 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 1",
201 2 : countPixel( rDevice, aCol ) == 1);
202 :
203 : // trigger "alternate bresenham" case in
204 : // clippedlinerenderer.hxx, both start and endpoint clipped
205 2 : const basegfx::B2IPoint aPt3(0,4);
206 2 : pClippedDevice->drawLine( aPt3, aPt2, aCol, DrawMode_XOR );
207 :
208 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 0",
209 2 : countPixel( rDevice, aCol ) == 0);
210 :
211 : // trigger "standard bresenham" case in
212 : // clippedlinerenderer.hxx, first point not clipped
213 2 : const basegfx::B2IPoint aPt4(6,2);
214 2 : pClippedDevice->drawLine( aPt1, aPt4, aCol, DrawMode_PAINT );
215 :
216 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 2",
217 2 : countPixel( rDevice, aCol ) == 2);
218 :
219 : // trigger "clipCode1 & aMinFlag/bMinFlag" cases in
220 : // clippedlinerenderer.hxx (note1: needs forcing end point to
221 : // be clipped as well, otherwise optimisation kicks in. note2:
222 : // needs forcing end point to clip on two edges, not only on
223 : // one, otherwise swap kicks in)
224 2 : const basegfx::B2IPoint aPt5(1,1);
225 2 : const basegfx::B2IPoint aPt6(6,10);
226 2 : pClippedDevice->drawLine( aPt5, aPt6, aCol, DrawMode_XOR );
227 :
228 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 6",
229 2 : countPixel( rDevice, aCol ) == 6);
230 :
231 : // trigger "clipCode1 & (aMinFlag|aMaxFlag)" case in
232 : // clippedlinerenderer.hxx that was not taken for the test
233 : // above
234 2 : pClippedDevice->drawLine( aPt3, aPt6, aCol, DrawMode_XOR );
235 :
236 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 8",
237 4 : countPixel( rDevice, aCol ) == 8);
238 :
239 2 : }
240 :
241 2 : void implTestPolyDrawClip(const BitmapDeviceSharedPtr& rDevice)
242 : {
243 2 : const Color aCol(0xFFFFFFFF);
244 2 : const Color aBgCol(0);
245 2 : rDevice->clear(aBgCol);
246 2 : basegfx::B2DPolyPolygon aPoly;
247 :
248 : // test all corner-touching lines of our clip rect. note that
249 : // *all* of the four two-pixel lines in that polygon do *not*
250 : // generate a single pixel, due to the rasterization effect.
251 : basegfx::tools::importFromSvgD( aPoly,
252 2 : OUString( "M2 3 l1 -1 M4 2 l1 1 M2 8 l1 1 M5 8 l-1 1 M2 5 h4 M3 0 v10" ) );
253 : BitmapDeviceSharedPtr pClippedDevice=(
254 : subsetBitmapDevice( rDevice,
255 2 : basegfx::B2IBox(3,3,5,9) ));
256 :
257 14 : for( unsigned int i=0; i<aPoly.count(); ++i )
258 : pClippedDevice->drawPolygon(
259 : aPoly.getB2DPolygon(i),
260 : aCol,
261 12 : DrawMode_PAINT );
262 :
263 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 7",
264 4 : countPixel( rDevice, aCol ) == 7);
265 2 : }
266 :
267 2 : void implTestPolyPolyCrissCross(const BitmapDeviceSharedPtr& rDevice)
268 : {
269 2 : const Color aCol(0xFFFFFFFF);
270 2 : const Color aBgCol(0);
271 2 : rDevice->clear(aBgCol);
272 2 : basegfx::B2DPolyPolygon aPoly;
273 :
274 : basegfx::tools::importFromSvgD( aPoly,
275 : OUString( "M0 0 v2 l10 2 v-2 z"
276 : "M10 6 v-2 l-10 2 v2 z"
277 : "M1 0 h1 v10 h-1 z"
278 : "M4 0 h1 v10 h-1 z"
279 2 : "M8 0 h1 v10 h-1 z" ) );
280 : rDevice->fillPolyPolygon(
281 : aPoly,
282 : aCol,
283 2 : DrawMode_PAINT );
284 4 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 46",
285 4 : countPixel( rDevice, aCol ) == 46);
286 2 : }
287 :
288 :
289 : public:
290 7 : void setUp()
291 : {
292 7 : const basegfx::B2ISize aSize(10,10);
293 : mpDevice1bpp = createBitmapDevice( aSize,
294 : true,
295 7 : Format::ONE_BIT_MSB_PAL );
296 : mpDevice32bpp = createBitmapDevice( aSize,
297 : true,
298 7 : Format::THIRTYTWO_BIT_TC_MASK );
299 7 : }
300 :
301 1 : void testEmpty()
302 : {
303 1 : implTestEmpty( mpDevice1bpp );
304 1 : implTestEmpty( mpDevice32bpp );
305 1 : }
306 :
307 1 : void testHairline()
308 : {
309 1 : implTestHairline( mpDevice1bpp );
310 1 : implTestHairline( mpDevice32bpp );
311 1 : }
312 :
313 1 : void testPolyPoly()
314 : {
315 1 : implTestPolyPoly( mpDevice1bpp );
316 1 : implTestPolyPoly( mpDevice32bpp );
317 1 : }
318 :
319 1 : void testPolyPolyClip()
320 : {
321 1 : implTestPolyPolyClip(mpDevice1bpp);
322 1 : implTestPolyPolyClip(mpDevice32bpp);
323 1 : }
324 :
325 1 : void testLineDrawClip()
326 : {
327 1 : implTestLineDrawClip(mpDevice1bpp);
328 1 : implTestLineDrawClip(mpDevice32bpp);
329 1 : }
330 :
331 1 : void testPolyDrawClip()
332 : {
333 1 : implTestPolyDrawClip(mpDevice1bpp);
334 1 : implTestPolyDrawClip(mpDevice32bpp);
335 1 : }
336 :
337 1 : void testPolyPolyCrissCross()
338 : {
339 1 : implTestPolyPolyCrissCross(mpDevice1bpp);
340 1 : implTestPolyPolyCrissCross(mpDevice32bpp);
341 1 : }
342 :
343 : // Change the following lines only, if you add, remove or rename
344 : // member functions of the current class,
345 : // because these macros are need by auto register mechanism.
346 :
347 2 : CPPUNIT_TEST_SUITE(PolyTest);
348 1 : CPPUNIT_TEST(testEmpty);
349 1 : CPPUNIT_TEST(testHairline);
350 1 : CPPUNIT_TEST(testPolyPoly);
351 1 : CPPUNIT_TEST(testPolyPolyClip);
352 1 : CPPUNIT_TEST(testLineDrawClip);
353 1 : CPPUNIT_TEST(testPolyDrawClip);
354 1 : CPPUNIT_TEST(testPolyPolyCrissCross);
355 2 : CPPUNIT_TEST_SUITE_END();
356 : };
357 :
358 1 : CPPUNIT_TEST_SUITE_REGISTRATION(PolyTest);
359 3 : }
360 :
361 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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