19f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 29f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * jmorecfg.h 39f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 49f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Copyright (C) 1991-1997, Thomas G. Lane. 59f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * This file is part of the Independent JPEG Group's software. 69f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * For conditions of distribution and use, see the accompanying README file. 79f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 89f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * This file contains additional configuration options that customize the 99f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * JPEG software for special applications or support machine-dependent 109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * optimizations. Most users will not need to touch this file. 119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 13021b9904279c7bcd08a66a349933fc883141db34Hal Canary#ifndef JMORECFG_H 14021b9904279c7bcd08a66a349933fc883141db34Hal Canary#define JMORECFG_H 15021b9904279c7bcd08a66a349933fc883141db34Hal Canary 16021b9904279c7bcd08a66a349933fc883141db34Hal Canary#include <stdint.h> 17021b9904279c7bcd08a66a349933fc883141db34Hal Canary 189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Define ANDROID_RGB to enable specific optimizations for Android 209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * JCS_RGBA_8888 support 219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * JCS_RGB_565 support 229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define ANDROID_RGB 269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef ANDROID_RGB 284e7198a44d57ac3d4a3220c3ba671362fa8b46c9Mathias Agopian#define PACK_SHORT_565(r,g,b) ((((r)<<8)&0xf800)|(((g)<<3)&0x7E0)|((b)>>3)) 299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define PACK_TWO_PIXELS(l,r) ((r<<16) | l) 300da7ab65c6faaf7c8c39edf3612206703997334bColin Cross#define PACK_NEED_ALIGNMENT(ptr) (((uintptr_t)(ptr))&3) 319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define WRITE_TWO_PIXELS(addr, pixels) do { \ 329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((INT16*)(addr))[0] = (pixels); \ 339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((INT16*)(addr))[1] = (pixels)>>16; \ 349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } while(0) 359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define WRITE_TWO_ALIGNED_PIXELS(addr, pixels) ((*(INT32*)(addr)) = pixels) 369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define DITHER_565_R(r, dither) ((r) + ((dither)&0xFF)) 379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define DITHER_565_G(g, dither) ((g) + (((dither)&0xFF)>>1)) 389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define DITHER_565_B(b, dither) ((b) + ((dither)&0xFF)) 399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Define BITS_IN_JSAMPLE as either 439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 8 for 8-bit sample values (the usual setting) 449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 12 for 12-bit sample values 459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Only 8 and 12 are legal data precisions for lossy JPEG according to the 469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * JPEG standard, and the IJG code does not support anything else! 479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * We do not support run-time selection of data precision, sorry. 489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define BITS_IN_JSAMPLE 8 /* use 8 or 12 */ 519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Maximum number of components (color channels) allowed in JPEG image. 559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * To meet the letter of the JPEG spec, set this to 255. However, darn 569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * few applications need more than 4 channels (maybe 5 for CMYK + alpha 579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * mask). We recommend 10 as a reasonable compromise; use 4 if you are 589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * really short on memory. (Each allowed component costs a hundred or so 599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * bytes of storage, whether actually used in an image or not.) 609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define MAX_COMPONENTS 10 /* maximum number of image components */ 639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Basic data types. 679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * You may need to change these if you have a machine with unusual data 689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * type sizes; for example, "char" not 8 bits, "short" not 16 bits, 699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * or "long" not 32 bits. We don't care whether "int" is 16 or 32 bits, 709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * but it had better be at least 16. 719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Representation of a single sample (pixel element value). 749f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * We frequently allocate large arrays of these, so it's important to keep 759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * them small. But if you have memory to burn and access to char or short 769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * arrays is very slow on your hardware, you might want to change these. 779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#if BITS_IN_JSAMPLE == 8 809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* JSAMPLE should be the smallest type that will hold the values 0..255. 819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * You can use a signed char by having GETJSAMPLE mask it with 0xFF. 829f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef HAVE_UNSIGNED_CHAR 859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 86021b9904279c7bcd08a66a349933fc883141db34Hal Canarytypedef uint8_t JSAMPLE; 879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define GETJSAMPLE(value) ((int) (value)) 889f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#else /* not HAVE_UNSIGNED_CHAR */ 909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projecttypedef char JSAMPLE; 929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef CHAR_IS_UNSIGNED 939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define GETJSAMPLE(value) ((int) (value)) 949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#else 959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define GETJSAMPLE(value) ((int) (value) & 0xFF) 969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif /* CHAR_IS_UNSIGNED */ 979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif /* HAVE_UNSIGNED_CHAR */ 999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define MAXJSAMPLE 255 1019f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define CENTERJSAMPLE 128 1029f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1039f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif /* BITS_IN_JSAMPLE == 8 */ 1049f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1059f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1069f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#if BITS_IN_JSAMPLE == 12 1079f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* JSAMPLE should be the smallest type that will hold the values 0..4095. 1089f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * On nearly all machines "short" will do nicely. 1099f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 111021b9904279c7bcd08a66a349933fc883141db34Hal Canarytypedef int16_t JSAMPLE; 1129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define GETJSAMPLE(value) ((int) (value)) 1139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define MAXJSAMPLE 4095 1159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define CENTERJSAMPLE 2048 1169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif /* BITS_IN_JSAMPLE == 12 */ 1189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Representation of a DCT frequency coefficient. 1219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * This should be a signed value of at least 16 bits; "short" is usually OK. 1229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Again, we allocate large arrays of these, but you can change to int 1239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * if you have memory to burn and "short" is really slow. 1249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 126021b9904279c7bcd08a66a349933fc883141db34Hal Canarytypedef int16_t JCOEF; 1279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Compressed datastreams are represented as arrays of JOCTET. 1309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * These must be EXACTLY 8 bits wide, at least once they are written to 1319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * external storage. Note that when using the stdio data source/destination 1329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * managers, this is also the data type passed to fread/fwrite. 1339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef HAVE_UNSIGNED_CHAR 1369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 137021b9904279c7bcd08a66a349933fc883141db34Hal Canarytypedef uint8_t JOCTET; 1389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define GETJOCTET(value) (value) 1399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#else /* not HAVE_UNSIGNED_CHAR */ 1419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projecttypedef char JOCTET; 1439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef CHAR_IS_UNSIGNED 1449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define GETJOCTET(value) (value) 1459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#else 1469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define GETJOCTET(value) ((value) & 0xFF) 1479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif /* CHAR_IS_UNSIGNED */ 1489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif /* HAVE_UNSIGNED_CHAR */ 1509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* These typedefs are used for various table entries and so forth. 1539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * They must be at least as wide as specified; but making them too big 1549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * won't cost a huge amount of memory, so we don't provide special 1559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * extraction code like we did for JSAMPLE. (In other words, these 1569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * typedefs live at a different point on the speed/space tradeoff curve.) 1579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* UINT8 must hold at least the values 0..255. */ 1609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef HAVE_UNSIGNED_CHAR 162021b9904279c7bcd08a66a349933fc883141db34Hal Canarytypedef uint8_t UINT8; 1639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#else /* not HAVE_UNSIGNED_CHAR */ 1649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef CHAR_IS_UNSIGNED 1659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projecttypedef char UINT8; 1669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#else /* not CHAR_IS_UNSIGNED */ 1679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projecttypedef short UINT8; 1689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif /* CHAR_IS_UNSIGNED */ 1699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif /* HAVE_UNSIGNED_CHAR */ 1709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* UINT16 must hold at least the values 0..65535. */ 1729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef HAVE_UNSIGNED_SHORT 174021b9904279c7bcd08a66a349933fc883141db34Hal Canarytypedef uint16_t UINT16; 1759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#else /* not HAVE_UNSIGNED_SHORT */ 1769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projecttypedef unsigned int UINT16; 1779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif /* HAVE_UNSIGNED_SHORT */ 1789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* INT16 must hold at least the values -32768..32767. */ 1809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifndef XMD_H /* X11/xmd.h correctly defines INT16 */ 182021b9904279c7bcd08a66a349933fc883141db34Hal Canarytypedef int16_t INT16; 1839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 1849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* INT32 must hold at least signed 32-bit values. */ 1869f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifndef XMD_H /* X11/xmd.h correctly defines INT32 */ 188021b9904279c7bcd08a66a349933fc883141db34Hal Canarytypedef int32_t INT32; 1899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 1909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Datatype used for image dimensions. The JPEG standard only supports 1929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * images up to 64K*64K due to 16-bit fields in SOF markers. Therefore 1939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * "unsigned int" is sufficient on all machines. However, if you need to 1949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * handle larger images and you don't mind deviating from the spec, you 1959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * can change this datatype. 1969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projecttypedef unsigned int JDIMENSION; 1999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define JPEG_MAX_DIMENSION 65500L /* a tad under 64K to prevent overflows */ 2019f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2029f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2039f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* These macros are used in all function definitions and extern declarations. 2049f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * You could modify them if you need to change function linkage conventions; 2059f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * in particular, you'll need to do that to make the library a Windows DLL. 2069f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Another application is to make all functions global for use with debuggers 2079f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * or code profilers that require it. 2089f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 2099f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* a function called through method pointers: */ 2119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define METHODDEF(type) static type 2129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* a function used only in its module: */ 2139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define LOCAL(type) static type 2149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* a function referenced thru EXTERNs: */ 2159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define GLOBAL(type) type 2169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* a reference to a GLOBAL function: */ 2179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define EXTERN(type) extern type 2189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* This macro is used to declare a "method", that is, a function pointer. 2219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * We want to supply prototype parameters if the compiler can cope. 2229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Note that the arglist parameter must be parenthesized! 2239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Again, you can customize this if you need special linkage keywords. 2249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 2259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef HAVE_PROTOTYPES 2279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define JMETHOD(type,methodname,arglist) type (*methodname) arglist 2289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#else 2299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define JMETHOD(type,methodname,arglist) type (*methodname) () 2309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 2319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Here is the pseudo-keyword for declaring pointers that must be "far" 2349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * on 80x86 machines. Most of the specialized coding for 80x86 is handled 2359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * by just saying "FAR *" where such a pointer is needed. In a few places 2369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol. 2379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 2389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef NEED_FAR_POINTERS 2409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define FAR far 2419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#else 2429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define FAR 2439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 2449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 2479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * On a few systems, type boolean and/or its values FALSE, TRUE may appear 2489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * in standard header files. Or you may have conflicts with application- 2499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * specific header files that you want to include together with these files. 2509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Defining HAVE_BOOLEAN before including jpeglib.h should make it work. 2519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 2529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifndef HAVE_BOOLEAN 2549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projecttypedef int boolean; 2559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 2569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifndef FALSE /* in case these macros already exist */ 2579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define FALSE 0 /* values of boolean */ 2589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 2599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifndef TRUE 2609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define TRUE 1 2619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 2629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 2659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * The remaining options affect code selection within the JPEG library, 2669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * but they don't need to be visible to most applications using the library. 2679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * To minimize application namespace pollution, the symbols won't be 2689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined. 2699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 2709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef JPEG_INTERNALS 2729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define JPEG_INTERNAL_OPTIONS 2739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 2749f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef JPEG_INTERNAL_OPTIONS 2769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 2799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * These defines indicate whether to include various optional functions. 2809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Undefining some of these symbols will produce a smaller but less capable 2819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * library. Note that you can leave certain source files out of the 2829f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * compilation/linking process if you've #undef'd the corresponding symbols. 2839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * (You may HAVE to do that if your compiler doesn't like null source files.) 2849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 2859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2869f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Arithmetic coding is unsupported for legal reasons. Complaints to IBM. */ 2879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2889f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Capability options common to encoder and decoder: */ 2899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */ 2919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */ 2929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */ 2939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Encoder capability options: */ 2959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#undef C_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ 2979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ 2989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ 2999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */ 3009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Note: if you selected 12-bit data precision, it is dangerous to turn off 3019f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only good for 8-bit 3029f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * precision, so jchuff.c normally uses entropy optimization to compute 3039f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * usable tables for higher precision. If you don't want to do optimization, 3049f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * you'll have to supply different default Huffman tables. 3059f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * The exact same statements apply for progressive JPEG: the default tables 3069f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * don't work for progressive mode. (This may get fixed, however.) 3079f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 3089f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */ 3099f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Decoder capability options: */ 3119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#undef D_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ 3139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ 3149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ 3159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */ 3169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */ 3179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? */ 3189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */ 3199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define UPSAMPLE_MERGING_SUPPORTED /* Fast path for sloppy upsampling? */ 3209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define QUANT_1PASS_SUPPORTED /* 1-pass color quantization? */ 3219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define QUANT_2PASS_SUPPORTED /* 2-pass color quantization? */ 3229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* more capability options later, no doubt */ 3249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 3279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Ordering of RGB data in scanlines passed to or from the application. 3289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * If your application wants to deal with data in the order B,G,R, just 3299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * change these macros. You can also deal with formats such as R,G,B,X 3309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * (one extra byte per pixel) by changing RGB_PIXELSIZE. Note that changing 3319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * the offsets will also change the order in which colormap data is organized. 3329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * RESTRICTIONS: 3339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats. 3349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 2. These macros only affect RGB<=>YCbCr color conversion, so they are not 3359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * useful if you are using JPEG color spaces other than YCbCr or grayscale. 3369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 3. The color quantizer modules will not behave desirably if RGB_PIXELSIZE 3379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * is not 3 (they don't understand about dummy color components!). So you 3389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * can't use color quantization if you change that value. 3399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 3409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define RGB_RED 0 /* Offset of Red in an RGB scanline element */ 3429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define RGB_GREEN 1 /* Offset of Green */ 3439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define RGB_BLUE 2 /* Offset of Blue */ 3449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef ANDROID_RGB 3459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define RGB_ALPHA 3 /* Offset of Alpha */ 3469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 3479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define RGB_PIXELSIZE 3 /* JSAMPLEs per RGB scanline element */ 3489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Definitions for speed-related optimizations. */ 3509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* If your compiler supports inline functions, define INLINE 3539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * as the inline keyword; otherwise define it as empty. 3549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 3559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifndef INLINE 3579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef __GNUC__ /* for instance, GNU C knows about inline */ 3589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define INLINE __inline__ 3599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 3609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifndef INLINE 3619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define INLINE /* default is to define it as empty */ 3629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 3639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 3649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying 3679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * two 16-bit shorts is faster than multiplying two ints. Define MULTIPLIER 3689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * as short on such a machine. MULTIPLIER must be at least 16 bits wide. 3699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 3709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifndef MULTIPLIER 3726553d244f16f1ce8e6b5e018fd1b49e98a3c1de3tengfei.zhao#ifdef ANDROID_INTELSSE2_IDCT 3736553d244f16f1ce8e6b5e018fd1b49e98a3c1de3tengfei.zhao #define MULTIPLIER short 3746a3be8dfbb7c258e7fbbd11f1078bf11c9be89bdPrajakta Gudadhe#elif ANDROID_MIPS_IDCT 3756a3be8dfbb7c258e7fbbd11f1078bf11c9be89bdPrajakta Gudadhe #define MULTIPLIER short 3766a3be8dfbb7c258e7fbbd11f1078bf11c9be89bdPrajakta Gudadhe#elif NV_ARM_NEON 3776a3be8dfbb7c258e7fbbd11f1078bf11c9be89bdPrajakta Gudadhe #define MULTIPLIER short 3786553d244f16f1ce8e6b5e018fd1b49e98a3c1de3tengfei.zhao#else 3796a3be8dfbb7c258e7fbbd11f1078bf11c9be89bdPrajakta Gudadhe #define MULTIPLIER int /* type for fastest integer multiply */ 3806553d244f16f1ce8e6b5e018fd1b49e98a3c1de3tengfei.zhao#endif 3819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 3829f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* FAST_FLOAT should be either float or double, whichever is done faster 3859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * by your compiler. (Note that this type is only used in the floating point 3869f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.) 3879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Typically, float is faster in ANSI C compilers, while double is faster in 3889f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * pre-ANSI compilers (because they insist on converting to double anyway). 3899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * The code below therefore chooses float if we have ANSI-style prototypes. 3909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 3919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifndef FAST_FLOAT 3939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef HAVE_PROTOTYPES 3949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define FAST_FLOAT float 3959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#else 3969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define FAST_FLOAT double 3979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 3989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 3999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 4009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif /* JPEG_INTERNAL_OPTIONS */ 401021b9904279c7bcd08a66a349933fc883141db34Hal Canary 402021b9904279c7bcd08a66a349933fc883141db34Hal Canary#endif /* JMORECFG_H */ 403