1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "compile/Image.h"
18
19#include "test/Test.h"
20
21namespace aapt {
22
23// Pixels are in RGBA_8888 packing.
24
25#define RED "\xff\x00\x00\xff"
26#define BLUE "\x00\x00\xff\xff"
27#define GREEN "\xff\x00\x00\xff"
28#define GR_70 "\xff\x00\x00\xb3"
29#define GR_50 "\xff\x00\x00\x80"
30#define GR_20 "\xff\x00\x00\x33"
31#define BLACK "\x00\x00\x00\xff"
32#define WHITE "\xff\xff\xff\xff"
33#define TRANS "\x00\x00\x00\x00"
34
35static uint8_t* k2x2[] = {
36    (uint8_t*)WHITE WHITE, (uint8_t*)WHITE WHITE,
37};
38
39static uint8_t* kMixedNeutralColor3x3[] = {
40    (uint8_t*)WHITE BLACK TRANS, (uint8_t*)TRANS RED TRANS,
41    (uint8_t*)WHITE WHITE WHITE,
42};
43
44static uint8_t* kTransparentNeutralColor3x3[] = {
45    (uint8_t*)TRANS BLACK TRANS, (uint8_t*)BLACK RED BLACK,
46    (uint8_t*)TRANS BLACK TRANS,
47};
48
49static uint8_t* kSingleStretch7x6[] = {
50    (uint8_t*)WHITE WHITE BLACK BLACK BLACK WHITE WHITE,
51    (uint8_t*)WHITE RED RED RED RED RED WHITE,
52    (uint8_t*)BLACK RED RED RED RED RED WHITE,
53    (uint8_t*)BLACK RED RED RED RED RED WHITE,
54    (uint8_t*)WHITE RED RED RED RED RED WHITE,
55    (uint8_t*)WHITE WHITE WHITE WHITE WHITE WHITE WHITE,
56};
57
58static uint8_t* kMultipleStretch10x7[] = {
59    (uint8_t*)WHITE WHITE BLACK WHITE BLACK BLACK WHITE BLACK WHITE WHITE,
60    (uint8_t*)BLACK RED BLUE RED BLUE BLUE RED BLUE RED WHITE,
61    (uint8_t*)BLACK RED BLUE RED BLUE BLUE RED BLUE RED WHITE,
62    (uint8_t*)WHITE RED BLUE RED BLUE BLUE RED BLUE RED WHITE,
63    (uint8_t*)BLACK RED BLUE RED BLUE BLUE RED BLUE RED WHITE,
64    (uint8_t*)BLACK RED BLUE RED BLUE BLUE RED BLUE RED WHITE,
65    (uint8_t*)WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE,
66};
67
68static uint8_t* kPadding6x5[] = {
69    (uint8_t*)WHITE WHITE WHITE WHITE WHITE WHITE,
70    (uint8_t*)WHITE WHITE WHITE WHITE WHITE WHITE,
71    (uint8_t*)WHITE WHITE WHITE WHITE WHITE BLACK,
72    (uint8_t*)WHITE WHITE WHITE WHITE WHITE WHITE,
73    (uint8_t*)WHITE WHITE BLACK BLACK WHITE WHITE,
74};
75
76static uint8_t* kLayoutBoundsWrongEdge3x3[] = {
77    (uint8_t*)WHITE RED WHITE, (uint8_t*)RED WHITE WHITE,
78    (uint8_t*)WHITE WHITE WHITE,
79};
80
81static uint8_t* kLayoutBoundsNotEdgeAligned5x5[] = {
82    (uint8_t*)WHITE WHITE WHITE WHITE WHITE,
83    (uint8_t*)WHITE WHITE WHITE WHITE WHITE,
84    (uint8_t*)WHITE WHITE WHITE WHITE RED,
85    (uint8_t*)WHITE WHITE WHITE WHITE WHITE,
86    (uint8_t*)WHITE WHITE RED WHITE WHITE,
87};
88
89static uint8_t* kLayoutBounds5x5[] = {
90    (uint8_t*)WHITE WHITE WHITE WHITE WHITE,
91    (uint8_t*)WHITE WHITE WHITE WHITE RED,
92    (uint8_t*)WHITE WHITE WHITE WHITE WHITE,
93    (uint8_t*)WHITE WHITE WHITE WHITE RED,
94    (uint8_t*)WHITE RED WHITE RED WHITE,
95};
96
97static uint8_t* kAsymmetricLayoutBounds5x5[] = {
98    (uint8_t*)WHITE WHITE WHITE WHITE WHITE,
99    (uint8_t*)WHITE WHITE WHITE WHITE RED,
100    (uint8_t*)WHITE WHITE WHITE WHITE WHITE,
101    (uint8_t*)WHITE WHITE WHITE WHITE WHITE,
102    (uint8_t*)WHITE RED WHITE WHITE WHITE,
103};
104
105static uint8_t* kPaddingAndLayoutBounds5x5[] = {
106    (uint8_t*)WHITE WHITE WHITE WHITE WHITE,
107    (uint8_t*)WHITE WHITE WHITE WHITE RED,
108    (uint8_t*)WHITE WHITE WHITE WHITE BLACK,
109    (uint8_t*)WHITE WHITE WHITE WHITE RED,
110    (uint8_t*)WHITE RED BLACK RED WHITE,
111};
112
113static uint8_t* kColorfulImage5x5[] = {
114    (uint8_t*)WHITE BLACK WHITE BLACK WHITE,
115    (uint8_t*)BLACK RED BLUE GREEN WHITE,
116    (uint8_t*)BLACK RED GREEN GREEN WHITE,
117    (uint8_t*)WHITE TRANS BLUE GREEN WHITE,
118    (uint8_t*)WHITE WHITE WHITE WHITE WHITE,
119};
120
121static uint8_t* kOutlineOpaque10x10[] = {
122    (uint8_t*)WHITE BLACK BLACK BLACK BLACK BLACK BLACK BLACK BLACK WHITE,
123    (uint8_t*)WHITE TRANS TRANS TRANS TRANS TRANS TRANS TRANS TRANS WHITE,
124    (uint8_t*)WHITE TRANS TRANS TRANS TRANS TRANS TRANS TRANS TRANS WHITE,
125    (uint8_t*)WHITE TRANS TRANS GREEN GREEN GREEN GREEN TRANS TRANS WHITE,
126    (uint8_t*)WHITE TRANS TRANS GREEN GREEN GREEN GREEN TRANS TRANS WHITE,
127    (uint8_t*)WHITE TRANS TRANS GREEN GREEN GREEN GREEN TRANS TRANS WHITE,
128    (uint8_t*)WHITE TRANS TRANS GREEN GREEN GREEN GREEN TRANS TRANS WHITE,
129    (uint8_t*)WHITE TRANS TRANS TRANS TRANS TRANS TRANS TRANS TRANS WHITE,
130    (uint8_t*)WHITE TRANS TRANS TRANS TRANS TRANS TRANS TRANS TRANS WHITE,
131    (uint8_t*)WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE,
132};
133
134static uint8_t* kOutlineTranslucent10x10[] = {
135    (uint8_t*)WHITE BLACK BLACK BLACK BLACK BLACK BLACK BLACK BLACK WHITE,
136    (uint8_t*)WHITE TRANS TRANS TRANS TRANS TRANS TRANS TRANS TRANS WHITE,
137    (uint8_t*)WHITE TRANS TRANS GR_20 GR_20 GR_20 GR_20 TRANS TRANS WHITE,
138    (uint8_t*)WHITE TRANS TRANS GR_50 GR_50 GR_50 GR_50 TRANS TRANS WHITE,
139    (uint8_t*)WHITE TRANS GR_20 GR_50 GR_70 GR_70 GR_50 GR_20 TRANS WHITE,
140    (uint8_t*)WHITE TRANS GR_20 GR_50 GR_70 GR_70 GR_50 GR_20 TRANS WHITE,
141    (uint8_t*)WHITE TRANS TRANS GR_50 GR_50 GR_50 GR_50 TRANS TRANS WHITE,
142    (uint8_t*)WHITE TRANS TRANS GR_20 GR_20 GR_20 GR_20 TRANS TRANS WHITE,
143    (uint8_t*)WHITE TRANS TRANS TRANS TRANS TRANS TRANS TRANS TRANS WHITE,
144    (uint8_t*)WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE,
145};
146
147static uint8_t* kOutlineOffsetTranslucent12x10[] = {
148    (uint8_t*)
149        WHITE WHITE WHITE BLACK BLACK BLACK BLACK BLACK BLACK BLACK BLACK WHITE,
150    (uint8_t*)
151        WHITE TRANS TRANS TRANS TRANS TRANS TRANS TRANS TRANS TRANS TRANS WHITE,
152    (uint8_t*)
153        WHITE TRANS TRANS TRANS TRANS GR_20 GR_20 GR_20 GR_20 TRANS TRANS WHITE,
154    (uint8_t*)
155        WHITE TRANS TRANS TRANS TRANS GR_50 GR_50 GR_50 GR_50 TRANS TRANS WHITE,
156    (uint8_t*)
157        WHITE TRANS TRANS TRANS GR_20 GR_50 GR_70 GR_70 GR_50 GR_20 TRANS WHITE,
158    (uint8_t*)
159        WHITE TRANS TRANS TRANS GR_20 GR_50 GR_70 GR_70 GR_50 GR_20 TRANS WHITE,
160    (uint8_t*)
161        WHITE TRANS TRANS TRANS TRANS GR_50 GR_50 GR_50 GR_50 TRANS TRANS WHITE,
162    (uint8_t*)
163        WHITE TRANS TRANS TRANS TRANS GR_20 GR_20 GR_20 GR_20 TRANS TRANS WHITE,
164    (uint8_t*)
165        WHITE TRANS TRANS TRANS TRANS TRANS TRANS TRANS TRANS TRANS TRANS WHITE,
166    (uint8_t*)
167        WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE WHITE,
168};
169
170static uint8_t* kOutlineRadius5x5[] = {
171    (uint8_t*)WHITE BLACK BLACK BLACK WHITE,
172    (uint8_t*)BLACK TRANS GREEN TRANS WHITE,
173    (uint8_t*)BLACK GREEN GREEN GREEN WHITE,
174    (uint8_t*)BLACK TRANS GREEN TRANS WHITE,
175    (uint8_t*)WHITE WHITE WHITE WHITE WHITE,
176};
177
178static uint8_t* kStretchAndPadding5x5[] = {
179    (uint8_t*)WHITE WHITE BLACK WHITE WHITE, (uint8_t*)WHITE RED RED RED WHITE,
180    (uint8_t*)BLACK RED RED RED BLACK,       (uint8_t*)WHITE RED RED RED WHITE,
181    (uint8_t*)WHITE WHITE BLACK WHITE WHITE,
182};
183
184TEST(NinePatchTest, Minimum3x3) {
185  std::string err;
186  EXPECT_EQ(nullptr, NinePatch::Create(k2x2, 2, 2, &err));
187  EXPECT_FALSE(err.empty());
188}
189
190TEST(NinePatchTest, MixedNeutralColors) {
191  std::string err;
192  EXPECT_EQ(nullptr, NinePatch::Create(kMixedNeutralColor3x3, 3, 3, &err));
193  EXPECT_FALSE(err.empty());
194}
195
196TEST(NinePatchTest, TransparentNeutralColor) {
197  std::string err;
198  EXPECT_NE(nullptr,
199            NinePatch::Create(kTransparentNeutralColor3x3, 3, 3, &err));
200}
201
202TEST(NinePatchTest, SingleStretchRegion) {
203  std::string err;
204  std::unique_ptr<NinePatch> nine_patch =
205      NinePatch::Create(kSingleStretch7x6, 7, 6, &err);
206  ASSERT_NE(nullptr, nine_patch);
207
208  ASSERT_EQ(1u, nine_patch->horizontal_stretch_regions.size());
209  ASSERT_EQ(1u, nine_patch->vertical_stretch_regions.size());
210
211  EXPECT_EQ(Range(1, 4), nine_patch->horizontal_stretch_regions.front());
212  EXPECT_EQ(Range(1, 3), nine_patch->vertical_stretch_regions.front());
213}
214
215TEST(NinePatchTest, MultipleStretchRegions) {
216  std::string err;
217  std::unique_ptr<NinePatch> nine_patch =
218      NinePatch::Create(kMultipleStretch10x7, 10, 7, &err);
219  ASSERT_NE(nullptr, nine_patch);
220
221  ASSERT_EQ(3u, nine_patch->horizontal_stretch_regions.size());
222  ASSERT_EQ(2u, nine_patch->vertical_stretch_regions.size());
223
224  EXPECT_EQ(Range(1, 2), nine_patch->horizontal_stretch_regions[0]);
225  EXPECT_EQ(Range(3, 5), nine_patch->horizontal_stretch_regions[1]);
226  EXPECT_EQ(Range(6, 7), nine_patch->horizontal_stretch_regions[2]);
227
228  EXPECT_EQ(Range(0, 2), nine_patch->vertical_stretch_regions[0]);
229  EXPECT_EQ(Range(3, 5), nine_patch->vertical_stretch_regions[1]);
230}
231
232TEST(NinePatchTest, InferPaddingFromStretchRegions) {
233  std::string err;
234  std::unique_ptr<NinePatch> nine_patch =
235      NinePatch::Create(kMultipleStretch10x7, 10, 7, &err);
236  ASSERT_NE(nullptr, nine_patch);
237  EXPECT_EQ(Bounds(1, 0, 1, 0), nine_patch->padding);
238}
239
240TEST(NinePatchTest, Padding) {
241  std::string err;
242  std::unique_ptr<NinePatch> nine_patch =
243      NinePatch::Create(kPadding6x5, 6, 5, &err);
244  ASSERT_NE(nullptr, nine_patch);
245  EXPECT_EQ(Bounds(1, 1, 1, 1), nine_patch->padding);
246}
247
248TEST(NinePatchTest, LayoutBoundsAreOnWrongEdge) {
249  std::string err;
250  EXPECT_EQ(nullptr, NinePatch::Create(kLayoutBoundsWrongEdge3x3, 3, 3, &err));
251  EXPECT_FALSE(err.empty());
252}
253
254TEST(NinePatchTest, LayoutBoundsMustTouchEdges) {
255  std::string err;
256  EXPECT_EQ(nullptr,
257            NinePatch::Create(kLayoutBoundsNotEdgeAligned5x5, 5, 5, &err));
258  EXPECT_FALSE(err.empty());
259}
260
261TEST(NinePatchTest, LayoutBounds) {
262  std::string err;
263  std::unique_ptr<NinePatch> nine_patch =
264      NinePatch::Create(kLayoutBounds5x5, 5, 5, &err);
265  ASSERT_NE(nullptr, nine_patch);
266  EXPECT_EQ(Bounds(1, 1, 1, 1), nine_patch->layout_bounds);
267
268  nine_patch = NinePatch::Create(kAsymmetricLayoutBounds5x5, 5, 5, &err);
269  ASSERT_NE(nullptr, nine_patch);
270  EXPECT_EQ(Bounds(1, 1, 0, 0), nine_patch->layout_bounds);
271}
272
273TEST(NinePatchTest, PaddingAndLayoutBounds) {
274  std::string err;
275  std::unique_ptr<NinePatch> nine_patch =
276      NinePatch::Create(kPaddingAndLayoutBounds5x5, 5, 5, &err);
277  ASSERT_NE(nullptr, nine_patch);
278  EXPECT_EQ(Bounds(1, 1, 1, 1), nine_patch->padding);
279  EXPECT_EQ(Bounds(1, 1, 1, 1), nine_patch->layout_bounds);
280}
281
282TEST(NinePatchTest, RegionColorsAreCorrect) {
283  std::string err;
284  std::unique_ptr<NinePatch> nine_patch =
285      NinePatch::Create(kColorfulImage5x5, 5, 5, &err);
286  ASSERT_NE(nullptr, nine_patch);
287
288  std::vector<uint32_t> expected_colors = {
289      NinePatch::PackRGBA((uint8_t*)RED),
290      (uint32_t)android::Res_png_9patch::NO_COLOR,
291      NinePatch::PackRGBA((uint8_t*)GREEN),
292      (uint32_t)android::Res_png_9patch::TRANSPARENT_COLOR,
293      NinePatch::PackRGBA((uint8_t*)BLUE),
294      NinePatch::PackRGBA((uint8_t*)GREEN),
295  };
296  EXPECT_EQ(expected_colors, nine_patch->region_colors);
297}
298
299TEST(NinePatchTest, OutlineFromOpaqueImage) {
300  std::string err;
301  std::unique_ptr<NinePatch> nine_patch =
302      NinePatch::Create(kOutlineOpaque10x10, 10, 10, &err);
303  ASSERT_NE(nullptr, nine_patch);
304  EXPECT_EQ(Bounds(2, 2, 2, 2), nine_patch->outline);
305  EXPECT_EQ(0x000000ffu, nine_patch->outline_alpha);
306  EXPECT_EQ(0.0f, nine_patch->outline_radius);
307}
308
309TEST(NinePatchTest, OutlineFromTranslucentImage) {
310  std::string err;
311  std::unique_ptr<NinePatch> nine_patch =
312      NinePatch::Create(kOutlineTranslucent10x10, 10, 10, &err);
313  ASSERT_NE(nullptr, nine_patch);
314  EXPECT_EQ(Bounds(3, 3, 3, 3), nine_patch->outline);
315  EXPECT_EQ(0x000000b3u, nine_patch->outline_alpha);
316  EXPECT_EQ(0.0f, nine_patch->outline_radius);
317}
318
319TEST(NinePatchTest, OutlineFromOffCenterImage) {
320  std::string err;
321  std::unique_ptr<NinePatch> nine_patch =
322      NinePatch::Create(kOutlineOffsetTranslucent12x10, 12, 10, &err);
323  ASSERT_NE(nullptr, nine_patch);
324
325  // TODO(adamlesinski): The old AAPT algorithm searches from the outside to the
326  // middle for each inset. If the outline is shifted, the search may not find a
327  // closer bounds.
328  // This check should be:
329  //   EXPECT_EQ(Bounds(5, 3, 3, 3), ninePatch->outline);
330  // but until I know what behavior I'm breaking, I will leave it at the
331  // incorrect:
332  EXPECT_EQ(Bounds(4, 3, 3, 3), nine_patch->outline);
333
334  EXPECT_EQ(0x000000b3u, nine_patch->outline_alpha);
335  EXPECT_EQ(0.0f, nine_patch->outline_radius);
336}
337
338TEST(NinePatchTest, OutlineRadius) {
339  std::string err;
340  std::unique_ptr<NinePatch> nine_patch =
341      NinePatch::Create(kOutlineRadius5x5, 5, 5, &err);
342  ASSERT_NE(nullptr, nine_patch);
343  EXPECT_EQ(Bounds(0, 0, 0, 0), nine_patch->outline);
344  EXPECT_EQ(3.4142f, nine_patch->outline_radius);
345}
346
347::testing::AssertionResult BigEndianOne(uint8_t* cursor) {
348  if (cursor[0] == 0 && cursor[1] == 0 && cursor[2] == 0 && cursor[3] == 1) {
349    return ::testing::AssertionSuccess();
350  }
351  return ::testing::AssertionFailure() << "Not BigEndian 1";
352}
353
354TEST(NinePatchTest, SerializePngEndianness) {
355  std::string err;
356  std::unique_ptr<NinePatch> nine_patch =
357      NinePatch::Create(kStretchAndPadding5x5, 5, 5, &err);
358  ASSERT_NE(nullptr, nine_patch);
359
360  size_t len;
361  std::unique_ptr<uint8_t[]> data = nine_patch->SerializeBase(&len);
362  ASSERT_NE(nullptr, data);
363  ASSERT_NE(0u, len);
364
365  // Skip past wasDeserialized + numXDivs + numYDivs + numColors + xDivsOffset +
366  // yDivsOffset
367  // (12 bytes)
368  uint8_t* cursor = data.get() + 12;
369
370  // Check that padding is big-endian. Expecting value 1.
371  EXPECT_TRUE(BigEndianOne(cursor));
372  EXPECT_TRUE(BigEndianOne(cursor + 4));
373  EXPECT_TRUE(BigEndianOne(cursor + 8));
374  EXPECT_TRUE(BigEndianOne(cursor + 12));
375}
376
377}  // namespace aapt
378