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MdeModulePkg: Update Brotli DecompressLib to the latest v1.0.6
[mirror_edk2.git] / MdeModulePkg / Library / BrotliCustomDecompressLib / common / platform.h
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LG		 1/* Copyright 2016 Google Inc. All Rights Reserved.\r
2\r
3 Distributed under MIT license.\r
4 See file LICENSE for detail or copy at https://opensource.org/licenses/MIT\r
5*/\r
6\r
7/* Macros for compiler / platform specific features and build options.\r
8\r
9 Build options are:\r
10 * BROTLI_BUILD_32_BIT disables 64-bit optimizations\r
11 * BROTLI_BUILD_64_BIT forces to use 64-bit optimizations\r
12 * BROTLI_BUILD_BIG_ENDIAN forces to use big-endian optimizations\r
13 * BROTLI_BUILD_ENDIAN_NEUTRAL disables endian-aware optimizations\r
14 * BROTLI_BUILD_LITTLE_ENDIAN forces to use little-endian optimizations\r
15 * BROTLI_BUILD_PORTABLE disables dangerous optimizations, like unaligned\r
16 read and overlapping memcpy; this reduces decompression speed by 5%\r
17 * BROTLI_BUILD_NO_RBIT disables "rbit" optimization for ARM CPUs\r
18 * BROTLI_DEBUG dumps file name and line number when decoder detects stream\r
19 or memory error\r
20 * BROTLI_ENABLE_LOG enables asserts and dumps various state information\r
21*/\r
22\r
23#ifndef BROTLI_COMMON_PLATFORM_H_\r
24#define BROTLI_COMMON_PLATFORM_H_\r
25\r
26//#include <string.h> /* memcpy */\r
27//#include <stdlib.h> /* malloc, free */\r
28\r
29#include <brotli/port.h>\r
30#include <brotli/types.h>\r
31#include <BrotliDecompressLibInternal.h>\r
32\r
33#if defined(OS_LINUX) || defined(OS_CYGWIN)\r
34#include <endian.h>\r
35#elif defined(OS_FREEBSD)\r
36#include <machine/endian.h>\r
37#elif defined(OS_MACOSX)\r
38#include <machine/endian.h>\r
39/* Let's try and follow the Linux convention */\r
40#define BROTLI_X_BYTE_ORDER BYTE_ORDER\r
41#define BROTLI_X_LITTLE_ENDIAN LITTLE_ENDIAN\r
42#define BROTLI_X_BIG_ENDIAN BIG_ENDIAN\r
43#endif\r
44\r
45#if defined(BROTLI_ENABLE_LOG) || defined(BROTLI_DEBUG)\r
46#include <assert.h>\r
47#include <stdio.h>\r
48#endif\r
49\r
50/* The following macros were borrowed from https://github.com/nemequ/hedley\r
51 * with permission of original author - Evan Nemerson <evan@nemerson.com> */\r
52\r
53/* >>> >>> >>> hedley macros */\r
54\r
55/* Define "BROTLI_PREDICT_TRUE" and "BROTLI_PREDICT_FALSE" macros for capable\r
56 compilers.\r
57\r
58To apply compiler hint, enclose the branching condition into macros, like this:\r
59\r
60 if (BROTLI_PREDICT_TRUE(zero == 0)) {\r
61 // main execution path\r
62 } else {\r
63 // compiler should place this code outside of main execution path\r
64 }\r
65\r
66OR:\r
67\r
68 if (BROTLI_PREDICT_FALSE(something_rare_or_unexpected_happens)) {\r
69 // compiler should place this code outside of main execution path\r
70 }\r
71\r
72*/\r
73#if BROTLI_GNUC_HAS_BUILTIN(__builtin_expect, 3, 0, 0) || \\r
74 BROTLI_INTEL_VERSION_CHECK(16, 0, 0) || \\r
75 BROTLI_SUNPRO_VERSION_CHECK(5, 12, 0) || \\r
76 BROTLI_ARM_VERSION_CHECK(4, 1, 0) || \\r
77 BROTLI_IBM_VERSION_CHECK(10, 1, 0) || \\r
78 BROTLI_TI_VERSION_CHECK(7, 3, 0) || \\r
79 BROTLI_TINYC_VERSION_CHECK(0, 9, 27)\r
80#define BROTLI_PREDICT_TRUE(x) (__builtin_expect(!!(x), 1))\r
81#define BROTLI_PREDICT_FALSE(x) (__builtin_expect(x, 0))\r
82#else\r
83#define BROTLI_PREDICT_FALSE(x) (x)\r
84#define BROTLI_PREDICT_TRUE(x) (x)\r
85#endif\r
86\r
87#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \\r
88 !defined(__cplusplus)\r
89#define BROTLI_RESTRICT restrict\r
90#elif BROTLI_GNUC_VERSION_CHECK(3, 1, 0) || \\r
91 BROTLI_MSVC_VERSION_CHECK(14, 0, 0) || \\r
92 BROTLI_INTEL_VERSION_CHECK(16, 0, 0) || \\r
93 BROTLI_ARM_VERSION_CHECK(4, 1, 0) || \\r
94 BROTLI_IBM_VERSION_CHECK(10, 1, 0) || \\r
95 BROTLI_PGI_VERSION_CHECK(17, 10, 0) || \\r
96 BROTLI_TI_VERSION_CHECK(8, 0, 0) || \\r
97 BROTLI_IAR_VERSION_CHECK(8, 0, 0) || \\r
98 (BROTLI_SUNPRO_VERSION_CHECK(5, 14, 0) && defined(__cplusplus))\r
99#define BROTLI_RESTRICT __restrict\r
100#elif BROTLI_SUNPRO_VERSION_CHECK(5, 3, 0) && !defined(__cplusplus)\r
101#define BROTLI_RESTRICT _Restrict\r
102#else\r
103#define BROTLI_RESTRICT\r
104#endif\r
105\r
106#if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \\r
107 (defined(__cplusplus) && (__cplusplus >= 199711L))\r
108#define BROTLI_MAYBE_INLINE inline\r
109#elif defined(__GNUC_STDC_INLINE__) || defined(__GNUC_GNU_INLINE__) || \\r
110 BROTLI_ARM_VERSION_CHECK(6, 2, 0)\r
111#define BROTLI_MAYBE_INLINE __inline__\r
112#elif BROTLI_MSVC_VERSION_CHECK(12, 0, 0) || \\r
113 BROTLI_ARM_VERSION_CHECK(4, 1, 0) || BROTLI_TI_VERSION_CHECK(8, 0, 0)\r
114#define BROTLI_MAYBE_INLINE __inline\r
115#else\r
116#define BROTLI_MAYBE_INLINE\r
117#endif\r
118\r
119#if BROTLI_GNUC_HAS_ATTRIBUTE(always_inline, 4, 0, 0) || \\r
120 BROTLI_INTEL_VERSION_CHECK(16, 0, 0) || \\r
121 BROTLI_SUNPRO_VERSION_CHECK(5, 11, 0) || \\r
122 BROTLI_ARM_VERSION_CHECK(4, 1, 0) || \\r
123 BROTLI_IBM_VERSION_CHECK(10, 1, 0) || \\r
124 BROTLI_TI_VERSION_CHECK(8, 0, 0) || \\r
125 (BROTLI_TI_VERSION_CHECK(7, 3, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__))\r
126#define BROTLI_INLINE BROTLI_MAYBE_INLINE __attribute__((__always_inline__))\r
127#elif BROTLI_MSVC_VERSION_CHECK(12, 0, 0)\r
128#define BROTLI_INLINE BROTLI_MAYBE_INLINE __forceinline\r
129#elif BROTLI_TI_VERSION_CHECK(7, 0, 0) && defined(__cplusplus)\r
130#define BROTLI_INLINE BROTLI_MAYBE_INLINE _Pragma("FUNC_ALWAYS_INLINE;")\r
131#elif BROTLI_IAR_VERSION_CHECK(8, 0, 0)\r
132#define BROTLI_INLINE BROTLI_MAYBE_INLINE _Pragma("inline=forced")\r
133#else\r
134#define BROTLI_INLINE BROTLI_MAYBE_INLINE\r
135#endif\r
136\r
137#if BROTLI_GNUC_HAS_ATTRIBUTE(noinline, 4, 0, 0) || \\r
138 BROTLI_INTEL_VERSION_CHECK(16, 0, 0) || \\r
139 BROTLI_SUNPRO_VERSION_CHECK(5, 11, 0) || \\r
140 BROTLI_ARM_VERSION_CHECK(4, 1, 0) || \\r
141 BROTLI_IBM_VERSION_CHECK(10, 1, 0) || \\r
142 BROTLI_TI_VERSION_CHECK(8, 0, 0) || \\r
143 (BROTLI_TI_VERSION_CHECK(7, 3, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__))\r
144#define BROTLI_NOINLINE __attribute__((__noinline__))\r
145#elif BROTLI_MSVC_VERSION_CHECK(13, 10, 0)\r
146#define BROTLI_NOINLINE __declspec(noinline)\r
147#elif BROTLI_PGI_VERSION_CHECK(10, 2, 0)\r
148#define BROTLI_NOINLINE _Pragma("noinline")\r
149#elif BROTLI_TI_VERSION_CHECK(6, 0, 0) && defined(__cplusplus)\r
150#define BROTLI_NOINLINE _Pragma("FUNC_CANNOT_INLINE;")\r
151#elif BROTLI_IAR_VERSION_CHECK(8, 0, 0)\r
152#define BROTLI_NOINLINE _Pragma("inline=never")\r
153#else\r
154#define BROTLI_NOINLINE\r
155#endif\r
156\r
157/* BROTLI_INTERNAL could be defined to override visibility, e.g. for tests. */\r
158#if !defined(BROTLI_INTERNAL)\r
159#if defined(_WIN32) || defined(__CYGWIN__)\r
160#define BROTLI_INTERNAL\r
161#elif BROTLI_GNUC_VERSION_CHECK(3, 3, 0) || \\r
162 BROTLI_TI_VERSION_CHECK(8, 0, 0) || \\r
163 BROTLI_INTEL_VERSION_CHECK(16, 0, 0) || \\r
164 BROTLI_ARM_VERSION_CHECK(4, 1, 0) || \\r
165 BROTLI_IBM_VERSION_CHECK(13, 1, 0) || \\r
166 BROTLI_SUNPRO_VERSION_CHECK(5, 11, 0) || \\r
167 (BROTLI_TI_VERSION_CHECK(7, 3, 0) && \\r
168 defined(__TI_GNU_ATTRIBUTE_SUPPORT__) && defined(__TI_EABI__))\r
169#define BROTLI_INTERNAL __attribute__ ((visibility ("hidden")))\r
170#else\r
171#define BROTLI_INTERNAL\r
172#endif\r
173#endif\r
174\r
175/* <<< <<< <<< end of hedley macros. */\r
176\r
177#if BROTLI_GNUC_HAS_ATTRIBUTE(unused, 2, 7, 0) || \\r
178 BROTLI_INTEL_VERSION_CHECK(16, 0, 0)\r
179#define BROTLI_UNUSED_FUNCTION static BROTLI_INLINE __attribute__ ((unused))\r
180#else\r
181#define BROTLI_UNUSED_FUNCTION static BROTLI_INLINE\r
182#endif\r
183\r
184#if (defined(__ARM_ARCH) && (__ARM_ARCH == 7)) || \\r
185 (defined(M_ARM) && (M_ARM == 7))\r
186#define BROTLI_TARGET_ARMV7\r
187#endif /* ARMv7 */\r
188\r
189#if (defined(__ARM_ARCH) && (__ARM_ARCH == 8)) || \\r
190 defined(__aarch64__) || defined(__ARM64_ARCH_8__)\r
191#define BROTLI_TARGET_ARMV8_ANY\r
192\r
193#if defined(__ARM_32BIT_STATE)\r
194#define BROTLI_TARGET_ARMV8_32\r
195#elif defined(__ARM_64BIT_STATE)\r
196#define BROTLI_TARGET_ARMV8_64\r
197#endif\r
198\r
199#endif /* ARMv8 */\r
200\r
201#if defined(__i386) || defined(_M_IX86)\r
202#define BROTLI_TARGET_X86\r
203#endif\r
204\r
205#if defined(__x86_64__) || defined(_M_X64)\r
206#define BROTLI_TARGET_X64\r
207#endif\r
208\r
209#if defined(__PPC64__)\r
210#define BROTLI_TARGET_POWERPC64\r
211#endif\r
212\r
213#if defined(__riscv) && defined(__riscv_xlen) && __riscv_xlen == 64\r
214#define BROTLI_TARGET_RISCV64\r
215#endif\r
216\r
217#if defined(BROTLI_BUILD_64_BIT)\r
218#define BROTLI_64_BITS 1\r
219#elif defined(BROTLI_BUILD_32_BIT)\r
220#define BROTLI_64_BITS 0\r
221#elif defined(BROTLI_TARGET_X64) || defined(BROTLI_TARGET_ARMV8_64) || \\r
222 defined(BROTLI_TARGET_POWERPC64) || defined(BROTLI_TARGET_RISCV64)\r
223#define BROTLI_64_BITS 1\r
224#else\r
225#define BROTLI_64_BITS 0\r
226#endif\r
227\r
228#if (BROTLI_64_BITS)\r
229#define brotli_reg_t uint64_t\r
230#else\r
231#define brotli_reg_t uint32_t\r
232#endif\r
233\r
234#if defined(BROTLI_BUILD_BIG_ENDIAN)\r
235#define BROTLI_BIG_ENDIAN 1\r
236#elif defined(BROTLI_BUILD_LITTLE_ENDIAN)\r
237#define BROTLI_LITTLE_ENDIAN 1\r
238#elif defined(BROTLI_BUILD_ENDIAN_NEUTRAL)\r
239/* Just break elif chain. */\r
240#elif defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)\r
241#define BROTLI_LITTLE_ENDIAN 1\r
242#elif defined(_WIN32) || defined(BROTLI_TARGET_X64)\r
243/* Win32 & x64 can currently always be assumed to be little endian */\r
244#define BROTLI_LITTLE_ENDIAN 1\r
245#elif defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)\r
246#define BROTLI_BIG_ENDIAN 1\r
247#elif defined(BROTLI_X_BYTE_ORDER)\r
248#if BROTLI_X_BYTE_ORDER == BROTLI_X_LITTLE_ENDIAN\r
249#define BROTLI_LITTLE_ENDIAN 1\r
250#elif BROTLI_X_BYTE_ORDER == BROTLI_X_BIG_ENDIAN\r
251#define BROTLI_BIG_ENDIAN 1\r
252#endif\r
253#endif /* BROTLI_X_BYTE_ORDER */\r
254\r
255#if !defined(BROTLI_LITTLE_ENDIAN)\r
256#define BROTLI_LITTLE_ENDIAN 0\r
257#endif\r
258\r
259#if !defined(BROTLI_BIG_ENDIAN)\r
260#define BROTLI_BIG_ENDIAN 0\r
261#endif\r
262\r
263#if defined(BROTLI_X_BYTE_ORDER)\r
264#undef BROTLI_X_BYTE_ORDER\r
265#undef BROTLI_X_LITTLE_ENDIAN\r
266#undef BROTLI_X_BIG_ENDIAN\r
267#endif\r
268\r
269#if defined(BROTLI_BUILD_PORTABLE)\r
270#define BROTLI_ALIGNED_READ (!!1)\r
271#elif defined(BROTLI_TARGET_X86) || defined(BROTLI_TARGET_X64) || \\r
272 defined(BROTLI_TARGET_ARMV7) || defined(BROTLI_TARGET_ARMV8_ANY) || \\r
273 defined(BROTLI_TARGET_RISCV64)\r
274/* Allow unaligned read only for white-listed CPUs. */\r
275#define BROTLI_ALIGNED_READ (!!0)\r
276#else\r
277#define BROTLI_ALIGNED_READ (!!1)\r
278#endif\r
279\r
280#if BROTLI_ALIGNED_READ\r
281/* Portable unaligned memory access: read / write values via memcpy. */\r
282static BROTLI_INLINE uint16_t BrotliUnalignedRead16(const void* p) {\r
283 uint16_t t;\r
284 memcpy(&t, p, sizeof t);\r
285 return t;\r
286}\r
287static BROTLI_INLINE uint32_t BrotliUnalignedRead32(const void* p) {\r
288 uint32_t t;\r
289 memcpy(&t, p, sizeof t);\r
290 return t;\r
291}\r
292static BROTLI_INLINE uint64_t BrotliUnalignedRead64(const void* p) {\r
293 uint64_t t;\r
294 memcpy(&t, p, sizeof t);\r
295 return t;\r
296}\r
297static BROTLI_INLINE void BrotliUnalignedWrite64(void* p, uint64_t v) {\r
298 memcpy(p, &v, sizeof v);\r
299}\r
300#else /* BROTLI_ALIGNED_READ */\r
301/* Unaligned memory access is allowed: just cast pointer to requested type. */\r
302#if defined(ADDRESS_SANITIZER) || defined(THREAD_SANITIZER) || \\r
303 defined(MEMORY_SANITIZER)\r
304/* Consider we have an unaligned load/store of 4 bytes from address 0x...05.\r
305 AddressSanitizer will treat it as a 3-byte access to the range 05:07 and\r
306 will miss a bug if 08 is the first unaddressable byte.\r
307 ThreadSanitizer will also treat this as a 3-byte access to 05:07 and will\r
308 miss a race between this access and some other accesses to 08.\r
309 MemorySanitizer will correctly propagate the shadow on unaligned stores\r
310 and correctly report bugs on unaligned loads, but it may not properly\r
311 update and report the origin of the uninitialized memory.\r
312 For all three tools, replacing an unaligned access with a tool-specific\r
313 callback solves the problem. */\r
314#if defined(__cplusplus)\r
315extern "C" {\r
316#endif /* __cplusplus */\r
317 uint16_t __sanitizer_unaligned_load16(const void* p);\r
318 uint32_t __sanitizer_unaligned_load32(const void* p);\r
319 uint64_t __sanitizer_unaligned_load64(const void* p);\r
320 void __sanitizer_unaligned_store64(void* p, uint64_t v);\r
321#if defined(__cplusplus)\r
322} /* extern "C" */\r
323#endif /* __cplusplus */\r
324#define BrotliUnalignedRead16 __sanitizer_unaligned_load16\r
325#define BrotliUnalignedRead32 __sanitizer_unaligned_load32\r
326#define BrotliUnalignedRead64 __sanitizer_unaligned_load64\r
327#define BrotliUnalignedWrite64 __sanitizer_unaligned_store64\r
328#else\r
329static BROTLI_INLINE uint16_t BrotliUnalignedRead16(const void* p) {\r
330 return *(const uint16_t*)p;\r
331}\r
332static BROTLI_INLINE uint32_t BrotliUnalignedRead32(const void* p) {\r
333 return *(const uint32_t*)p;\r
334}\r
335#if (BROTLI_64_BITS)\r
336static BROTLI_INLINE uint64_t BrotliUnalignedRead64(const void* p) {\r
337 return *(const uint64_t*)p;\r
338}\r
339static BROTLI_INLINE void BrotliUnalignedWrite64(void* p, uint64_t v) {\r
340 *(uint64_t*)p = v;\r
341}\r
342#else /* BROTLI_64_BITS */\r
343/* Avoid emitting LDRD / STRD, which require properly aligned address. */\r
344/* If __attribute__(aligned) is available, use that. Otherwise, memcpy. */\r
345\r
346#if BROTLI_GNUC_HAS_ATTRIBUTE(aligned, 2, 7, 0)\r
347typedef __attribute__((aligned(1))) uint64_t brotli_unaligned_uint64_t;\r
348\r
349static BROTLI_INLINE uint64_t BrotliUnalignedRead64(const void* p) {\r
350 return (uint64_t) ((brotli_unaligned_uint64_t*) p)[0];\r
351}\r
352static BROTLI_INLINE void BrotliUnalignedWrite64(void* p, uint64_t v) {\r
353 brotli_unaligned_uint64_t* dwords = (brotli_unaligned_uint64_t*) p;\r
354 dwords[0] = (brotli_unaligned_uint64_t) v;\r
355}\r
356#else /* BROTLI_GNUC_HAS_ATTRIBUTE(aligned, 2, 7, 0) */\r
357static BROTLI_INLINE uint64_t BrotliUnalignedRead64(const void* p) {\r
358 uint64_t v;\r
359 memcpy(&v, p, sizeof(uint64_t));\r
360 return v;\r
361}\r
362\r
363static BROTLI_INLINE void BrotliUnalignedWrite64(void* p, uint64_t v) {\r
364 memcpy(p, &v, sizeof(uint64_t));\r
365}\r
366#endif /* BROTLI_GNUC_HAS_ATTRIBUTE(aligned, 2, 7, 0) */\r
367#endif /* BROTLI_64_BITS */\r
368#endif /* ASAN / TSAN / MSAN */\r
369#endif /* BROTLI_ALIGNED_READ */\r
370\r
371#if BROTLI_LITTLE_ENDIAN\r
372/* Straight endianness. Just read / write values. */\r
373#define BROTLI_UNALIGNED_LOAD16LE BrotliUnalignedRead16\r
374#define BROTLI_UNALIGNED_LOAD32LE BrotliUnalignedRead32\r
375#define BROTLI_UNALIGNED_LOAD64LE BrotliUnalignedRead64\r
376#define BROTLI_UNALIGNED_STORE64LE BrotliUnalignedWrite64\r
377#elif BROTLI_BIG_ENDIAN /* BROTLI_LITTLE_ENDIAN */\r
378/* Explain compiler to byte-swap values. */\r
379#define BROTLI_BSWAP16_(V) ((uint16_t)( \\r
380 (((V) & 0xFFU) << 8) | \\r
381 (((V) >> 8) & 0xFFU)))\r
382static BROTLI_INLINE uint16_t BROTLI_UNALIGNED_LOAD16LE(const void* p) {\r
383 uint16_t value = BrotliUnalignedRead16(p);\r
384 return BROTLI_BSWAP16_(value);\r
385}\r
386#define BROTLI_BSWAP32_(V) ( \\r
387 (((V) & 0xFFU) << 24) | (((V) & 0xFF00U) << 8) | \\r
388 (((V) >> 8) & 0xFF00U) | (((V) >> 24) & 0xFFU))\r
389static BROTLI_INLINE uint32_t BROTLI_UNALIGNED_LOAD32LE(const void* p) {\r
390 uint32_t value = BrotliUnalignedRead32(p);\r
391 return BROTLI_BSWAP32_(value);\r
392}\r
393#define BROTLI_BSWAP64_(V) ( \\r
394 (((V) & 0xFFU) << 56) | (((V) & 0xFF00U) << 40) | \\r
395 (((V) & 0xFF0000U) << 24) | (((V) & 0xFF000000U) << 8) | \\r
396 (((V) >> 8) & 0xFF000000U) | (((V) >> 24) & 0xFF0000U) | \\r
397 (((V) >> 40) & 0xFF00U) | (((V) >> 56) & 0xFFU))\r
398static BROTLI_INLINE uint64_t BROTLI_UNALIGNED_LOAD64LE(const void* p) {\r
399 uint64_t value = BrotliUnalignedRead64(p);\r
400 return BROTLI_BSWAP64_(value);\r
401}\r
402static BROTLI_INLINE void BROTLI_UNALIGNED_STORE64LE(void* p, uint64_t v) {\r
403 uint64_t value = BROTLI_BSWAP64_(v);\r
404 BrotliUnalignedWrite64(p, value);\r
405}\r
406#else /* BROTLI_LITTLE_ENDIAN */\r
407/* Read / store values byte-wise; hopefully compiler will understand. */\r
408static BROTLI_INLINE uint16_t BROTLI_UNALIGNED_LOAD16LE(const void* p) {\r
409 const uint8_t* in = (const uint8_t*)p;\r
410 return (uint16_t)(in[0] | (in[1] << 8));\r
411}\r
412static BROTLI_INLINE uint32_t BROTLI_UNALIGNED_LOAD32LE(const void* p) {\r
413 const uint8_t* in = (const uint8_t*)p;\r
414 uint32_t value = (uint32_t)(in[0]);\r
415 value |= (uint32_t)(in[1]) << 8;\r
416 value |= (uint32_t)(in[2]) << 16;\r
417 value |= (uint32_t)(in[3]) << 24;\r
418 return value;\r
419}\r
420static BROTLI_INLINE uint64_t BROTLI_UNALIGNED_LOAD64LE(const void* p) {\r
421 const uint8_t* in = (const uint8_t*)p;\r
422 uint64_t value = (uint64_t)(in[0]);\r
423 value |= (uint64_t)(in[1]) << 8;\r
424 value |= (uint64_t)(in[2]) << 16;\r
425 value |= (uint64_t)(in[3]) << 24;\r
426 value |= (uint64_t)(in[4]) << 32;\r
427 value |= (uint64_t)(in[5]) << 40;\r
428 value |= (uint64_t)(in[6]) << 48;\r
429 value |= (uint64_t)(in[7]) << 56;\r
430 return value;\r
431}\r
432static BROTLI_INLINE void BROTLI_UNALIGNED_STORE64LE(void* p, uint64_t v) {\r
433 uint8_t* out = (uint8_t*)p;\r
434 out[0] = (uint8_t)v;\r
435 out[1] = (uint8_t)(v >> 8);\r
436 out[2] = (uint8_t)(v >> 16);\r
437 out[3] = (uint8_t)(v >> 24);\r
438 out[4] = (uint8_t)(v >> 32);\r
439 out[5] = (uint8_t)(v >> 40);\r
440 out[6] = (uint8_t)(v >> 48);\r
441 out[7] = (uint8_t)(v >> 56);\r
442}\r
443#endif /* BROTLI_LITTLE_ENDIAN */\r
444\r
445/* BROTLI_IS_CONSTANT macros returns true for compile-time constants. */\r
446#if BROTLI_GNUC_HAS_BUILTIN(__builtin_constant_p, 3, 0, 1) || \\r
447 BROTLI_INTEL_VERSION_CHECK(16, 0, 0)\r
448#define BROTLI_IS_CONSTANT(x) (!!__builtin_constant_p(x))\r
449#else\r
450#define BROTLI_IS_CONSTANT(x) (!!0)\r
451#endif\r
452\r
453#if defined(BROTLI_TARGET_ARMV7) || defined(BROTLI_TARGET_ARMV8_ANY)\r
454#define BROTLI_HAS_UBFX (!!1)\r
455#else\r
456#define BROTLI_HAS_UBFX (!!0)\r
457#endif\r
458\r
459#if defined(BROTLI_ENABLE_LOG)\r
460#define BROTLI_DCHECK(x) assert(x)\r
461#define BROTLI_LOG(x) printf x\r
462#else\r
463#define BROTLI_DCHECK(x)\r
464#define BROTLI_LOG(x)\r
465#endif\r
466\r
467#if defined(BROTLI_DEBUG) || defined(BROTLI_ENABLE_LOG)\r
468static BROTLI_INLINE void BrotliDump(const char* f, int l, const char* fn) {\r
469 fprintf(stderr, "%s:%d (%s)\n", f, l, fn);\r
470 fflush(stderr);\r
471}\r
472#define BROTLI_DUMP() BrotliDump(__FILE__, __LINE__, __FUNCTION__)\r
473#else\r
474#define BROTLI_DUMP() (void)(0)\r
475#endif\r
476\r
477/* TODO: add appropriate icc/sunpro/arm/ibm/ti checks. */\r
478#if (BROTLI_GNUC_VERSION_CHECK(3, 0, 0) || defined(__llvm__)) && \\r
479 !defined(BROTLI_BUILD_NO_RBIT)\r
480#if defined(BROTLI_TARGET_ARMV7) || defined(BROTLI_TARGET_ARMV8_ANY)\r
481/* TODO: detect ARMv6T2 and enable this code for it. */\r
482static BROTLI_INLINE brotli_reg_t BrotliRBit(brotli_reg_t input) {\r
483 brotli_reg_t output;\r
484 __asm__("rbit %0, %1\n" : "=r"(output) : "r"(input));\r
485 return output;\r
486}\r
487#define BROTLI_RBIT(x) BrotliRBit(x)\r
488#endif /* armv7 / armv8 */\r
489#endif /* gcc || clang */\r
490#if !defined(BROTLI_RBIT)\r
491static BROTLI_INLINE void BrotliRBit(void) { /* Should break build if used. */ }\r
492#endif /* BROTLI_RBIT */\r
493\r
494#define BROTLI_REPEAT(N, X) { \\r
495 if ((N & 1) != 0) {X;} \\r
496 if ((N & 2) != 0) {X; X;} \\r
497 if ((N & 4) != 0) {X; X; X; X;} \\r
498}\r
499\r
500#define BROTLI_UNUSED(X) (void)(X)\r
501\r
502#define BROTLI_MIN_MAX(T) \\r
503 static BROTLI_INLINE T brotli_min_ ## T (T a, T b) { return a < b ? a : b; } \\r
504 static BROTLI_INLINE T brotli_max_ ## T (T a, T b) { return a > b ? a : b; }\r
505BROTLI_MIN_MAX(double) BROTLI_MIN_MAX(float) BROTLI_MIN_MAX(int)\r
506BROTLI_MIN_MAX(size_t) BROTLI_MIN_MAX(uint32_t) BROTLI_MIN_MAX(uint8_t)\r
507#undef BROTLI_MIN_MAX\r
508#define BROTLI_MIN(T, A, B) (brotli_min_ ## T((A), (B)))\r
509#define BROTLI_MAX(T, A, B) (brotli_max_ ## T((A), (B)))\r
510\r
511#define BROTLI_SWAP(T, A, I, J) { \\r
512 T __brotli_swap_tmp = (A)[(I)]; \\r
513 (A)[(I)] = (A)[(J)]; \\r
514 (A)[(J)] = __brotli_swap_tmp; \\r
515}\r
516\r
517/* Default brotli_alloc_func */\r
518static void* BrotliDefaultAllocFunc(void* opaque, size_t size) {\r
519 BROTLI_UNUSED(opaque);\r
520 return BrDummyMalloc(size);\r
521}\r
522\r
523/* Default brotli_free_func */\r
524static void BrotliDefaultFreeFunc(void* opaque, void* address) {\r
525 BROTLI_UNUSED(opaque);\r
526 BrDummyFree(address);\r
527}\r
528\r
529BROTLI_UNUSED_FUNCTION void BrotliSuppressUnusedFunctions(void) {\r
530 BROTLI_UNUSED(&BrotliSuppressUnusedFunctions);\r
531 BROTLI_UNUSED(&BrotliUnalignedRead16);\r
532 BROTLI_UNUSED(&BrotliUnalignedRead32);\r
533 BROTLI_UNUSED(&BrotliUnalignedRead64);\r
534 BROTLI_UNUSED(&BrotliUnalignedWrite64);\r
535 BROTLI_UNUSED(&BROTLI_UNALIGNED_LOAD16LE);\r
536 BROTLI_UNUSED(&BROTLI_UNALIGNED_LOAD32LE);\r
537 BROTLI_UNUSED(&BROTLI_UNALIGNED_LOAD64LE);\r
538 BROTLI_UNUSED(&BROTLI_UNALIGNED_STORE64LE);\r
539 BROTLI_UNUSED(&BrotliRBit);\r
540 BROTLI_UNUSED(&brotli_min_double);\r
541 BROTLI_UNUSED(&brotli_max_double);\r
542 BROTLI_UNUSED(&brotli_min_float);\r
543 BROTLI_UNUSED(&brotli_max_float);\r
544 BROTLI_UNUSED(&brotli_min_int);\r
545 BROTLI_UNUSED(&brotli_max_int);\r
546 BROTLI_UNUSED(&brotli_min_size_t);\r
547 BROTLI_UNUSED(&brotli_max_size_t);\r
548 BROTLI_UNUSED(&brotli_min_uint32_t);\r
549 BROTLI_UNUSED(&brotli_max_uint32_t);\r
550 BROTLI_UNUSED(&brotli_min_uint8_t);\r
551 BROTLI_UNUSED(&brotli_max_uint8_t);\r
552 BROTLI_UNUSED(&BrotliDefaultAllocFunc);\r
553 BROTLI_UNUSED(&BrotliDefaultFreeFunc);\r
554#if defined(BROTLI_DEBUG) || defined(BROTLI_ENABLE_LOG)\r
555 BROTLI_UNUSED(&BrotliDump);\r
556#endif\r
557}\r
558\r
559#endif /* BROTLI_COMMON_PLATFORM_H_ */\r
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