1/*-------------------------------------------------------------------------
2 * drawElements C++ Base Library
3 * -----------------------------
4 *
5 * Copyright 2014 The Android Open Source Project
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 *      http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 *
19 *//*!
20 * \file
21 * \brief Array buffer
22 *//*--------------------------------------------------------------------*/
23
24#include "deArrayBuffer.hpp"
25
26#if defined(DE_VALGRIND_BUILD) && defined(HAVE_VALGRIND_MEMCHECK_H)
27#	include <valgrind/memcheck.h>
28#endif
29
30namespace de
31{
32namespace detail
33{
34
35void* ArrayBuffer_AlignedMalloc (size_t numBytes, size_t alignment)
36{
37	const int	sizeAsInt	= (int)numBytes;
38	void*		ptr;
39
40	// int overflow
41	if (sizeAsInt < 0 || numBytes != (size_t)sizeAsInt)
42		throw std::bad_alloc();
43
44	// alloc
45	ptr = deAlignedMalloc(sizeAsInt, (int)alignment);
46	if (!ptr)
47		throw std::bad_alloc();
48
49	// mark area as undefined for valgrind
50#if defined(DE_VALGRIND_BUILD) && defined(HAVE_VALGRIND_MEMCHECK_H)
51	if (RUNNING_ON_VALGRIND)
52	{
53		VALGRIND_MAKE_MEM_UNDEFINED(ptr, numBytes);
54	}
55#endif
56
57	return ptr;
58}
59
60void ArrayBuffer_AlignedFree (void* ptr)
61{
62	deAlignedFree(ptr);
63}
64
65} // detail
66
67void ArrayBuffer_selfTest (void)
68{
69	// default constructor
70	{
71		de::ArrayBuffer<int> buf;
72		DE_TEST_ASSERT(buf.size() == 0);
73		DE_TEST_ASSERT(buf.getPtr() == DE_NULL);
74	}
75
76	// sized constructor
77	{
78		de::ArrayBuffer<int> buf(4);
79		DE_TEST_ASSERT(buf.size() == 4);
80		DE_TEST_ASSERT(buf.getPtr() != DE_NULL);
81	}
82
83	// copy constructor
84	{
85		de::ArrayBuffer<int> originalBuf(4);
86		*originalBuf.getElementPtr(0) = 1;
87		*originalBuf.getElementPtr(1) = 2;
88		*originalBuf.getElementPtr(2) = 3;
89		*originalBuf.getElementPtr(3) = 4;
90
91		de::ArrayBuffer<int> targetBuf(originalBuf);
92
93		DE_TEST_ASSERT(*originalBuf.getElementPtr(0) == 1);
94		DE_TEST_ASSERT(*originalBuf.getElementPtr(1) == 2);
95		DE_TEST_ASSERT(*originalBuf.getElementPtr(2) == 3);
96		DE_TEST_ASSERT(*originalBuf.getElementPtr(3) == 4);
97
98		DE_TEST_ASSERT(*targetBuf.getElementPtr(0) == 1);
99		DE_TEST_ASSERT(*targetBuf.getElementPtr(1) == 2);
100		DE_TEST_ASSERT(*targetBuf.getElementPtr(2) == 3);
101		DE_TEST_ASSERT(*targetBuf.getElementPtr(3) == 4);
102	}
103
104	// assignment
105	{
106		de::ArrayBuffer<int> originalBuf(4);
107		*originalBuf.getElementPtr(0) = 1;
108		*originalBuf.getElementPtr(1) = 2;
109		*originalBuf.getElementPtr(2) = 3;
110		*originalBuf.getElementPtr(3) = 4;
111
112		de::ArrayBuffer<int> targetBuf(1);
113
114		targetBuf = originalBuf;
115
116		DE_TEST_ASSERT(*originalBuf.getElementPtr(0) == 1);
117		DE_TEST_ASSERT(*originalBuf.getElementPtr(1) == 2);
118		DE_TEST_ASSERT(*originalBuf.getElementPtr(2) == 3);
119		DE_TEST_ASSERT(*originalBuf.getElementPtr(3) == 4);
120
121		DE_TEST_ASSERT(*targetBuf.getElementPtr(0) == 1);
122		DE_TEST_ASSERT(*targetBuf.getElementPtr(1) == 2);
123		DE_TEST_ASSERT(*targetBuf.getElementPtr(2) == 3);
124		DE_TEST_ASSERT(*targetBuf.getElementPtr(3) == 4);
125	}
126
127	// clear
128	{
129		de::ArrayBuffer<int> buf(4);
130		buf.clear();
131		DE_TEST_ASSERT(buf.size() == 0);
132		DE_TEST_ASSERT(buf.getPtr() == DE_NULL);
133	}
134
135	// setStorage
136	{
137		de::ArrayBuffer<int> buf(4);
138		buf.setStorage(12);
139		DE_TEST_ASSERT(buf.size() == 12);
140		DE_TEST_ASSERT(buf.getPtr() != DE_NULL);
141	}
142
143	// setStorage, too large
144	{
145		de::ArrayBuffer<int> buf(4);
146		*buf.getElementPtr(0) = 1;
147		*buf.getElementPtr(1) = 2;
148		*buf.getElementPtr(2) = 3;
149		*buf.getElementPtr(3) = 4;
150
151		try
152		{
153			buf.setStorage((size_t)-1);
154
155			// setStorage succeeded, all ok
156		}
157		catch (std::bad_alloc&)
158		{
159			// alloc failed, check storage not changed
160
161			DE_TEST_ASSERT(buf.size() == 4);
162			DE_TEST_ASSERT(*buf.getElementPtr(0) == 1);
163			DE_TEST_ASSERT(*buf.getElementPtr(1) == 2);
164			DE_TEST_ASSERT(*buf.getElementPtr(2) == 3);
165			DE_TEST_ASSERT(*buf.getElementPtr(3) == 4);
166		}
167	}
168
169	// swap
170	{
171		de::ArrayBuffer<int> buf;
172		de::ArrayBuffer<int> source(4);
173		*source.getElementPtr(0) = 1;
174		*source.getElementPtr(1) = 2;
175		*source.getElementPtr(2) = 3;
176		*source.getElementPtr(3) = 4;
177
178		buf.swap(source);
179
180		DE_TEST_ASSERT(source.size() == 0);
181		DE_TEST_ASSERT(buf.size() == 4);
182		DE_TEST_ASSERT(*buf.getElementPtr(0) == 1);
183		DE_TEST_ASSERT(*buf.getElementPtr(1) == 2);
184		DE_TEST_ASSERT(*buf.getElementPtr(2) == 3);
185		DE_TEST_ASSERT(*buf.getElementPtr(3) == 4);
186	}
187
188	// default
189	{
190		de::ArrayBuffer<int> source(4);
191		int dst;
192		*source.getElementPtr(1) = 2;
193
194		deMemcpy(&dst, (int*)source.getPtr() + 1, sizeof(int));
195
196		DE_TEST_ASSERT(dst == 2);
197	}
198
199	// Aligned
200	{
201		de::ArrayBuffer<int, 64, sizeof(int)> source(4);
202		int dst;
203		*source.getElementPtr(1) = 2;
204
205		deMemcpy(&dst, (int*)source.getPtr() + 1, sizeof(int));
206
207		DE_TEST_ASSERT(dst == 2);
208	}
209
210	// Strided
211	{
212		de::ArrayBuffer<int, 4, 64> source(4);
213		int dst;
214		*source.getElementPtr(1) = 2;
215
216		deMemcpy(&dst, (deUint8*)source.getPtr() + 64, sizeof(int));
217
218		DE_TEST_ASSERT(dst == 2);
219	}
220
221	// Aligned, Strided
222	{
223		de::ArrayBuffer<int, 32, 64> source(4);
224		int dst;
225		*source.getElementPtr(1) = 2;
226
227		deMemcpy(&dst, (deUint8*)source.getPtr() + 64, sizeof(int));
228
229		DE_TEST_ASSERT(dst == 2);
230	}
231}
232
233} // de
234