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comparison: gfx/cairo/libpixman/src/pixman-mips.c
gfx/cairo/libpixman/src/pixman-mips.c
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| -1:000000000000 | 0:87b5b9400114 |
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| 1 /* | |
| 2 * Copyright © 2000 SuSE, Inc. | |
| 3 * Copyright © 2007 Red Hat, Inc. | |
| 4 * | |
| 5 * Permission to use, copy, modify, distribute, and sell this software and its | |
| 6 * documentation for any purpose is hereby granted without fee, provided that | |
| 7 * the above copyright notice appear in all copies and that both that | |
| 8 * copyright notice and this permission notice appear in supporting | |
| 9 * documentation, and that the name of SuSE not be used in advertising or | |
| 10 * publicity pertaining to distribution of the software without specific, | |
| 11 * written prior permission. SuSE makes no representations about the | |
| 12 * suitability of this software for any purpose. It is provided "as is" | |
| 13 * without express or implied warranty. | |
| 14 * | |
| 15 * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL | |
| 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE | |
| 17 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 18 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION | |
| 19 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |
| 20 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 21 */ | |
| 22 #ifdef HAVE_CONFIG_H | |
| 23 #include <config.h> | |
| 24 #endif | |
| 25 | |
| 26 #include "pixman-private.h" | |
| 27 | |
| 28 #if defined(USE_MIPS_DSPR2) || defined(USE_LOONGSON_MMI) | |
| 29 | |
| 30 #include <string.h> | |
| 31 #include <stdlib.h> | |
| 32 | |
| 33 static pixman_bool_t | |
| 34 have_feature (const char *search_string) | |
| 35 { | |
| 36 #if defined (__linux__) /* linux ELF */ | |
| 37 /* Simple detection of MIPS features at runtime for Linux. | |
| 38 * It is based on /proc/cpuinfo, which reveals hardware configuration | |
| 39 * to user-space applications. According to MIPS (early 2010), no similar | |
| 40 * facility is universally available on the MIPS architectures, so it's up | |
| 41 * to individual OSes to provide such. | |
| 42 */ | |
| 43 const char *file_name = "/proc/cpuinfo"; | |
| 44 char cpuinfo_line[256]; | |
| 45 FILE *f = NULL; | |
| 46 | |
| 47 if ((f = fopen (file_name, "r")) == NULL) | |
| 48 return FALSE; | |
| 49 | |
| 50 while (fgets (cpuinfo_line, sizeof (cpuinfo_line), f) != NULL) | |
| 51 { | |
| 52 if (strstr (cpuinfo_line, search_string) != NULL) | |
| 53 { | |
| 54 fclose (f); | |
| 55 return TRUE; | |
| 56 } | |
| 57 } | |
| 58 | |
| 59 fclose (f); | |
| 60 #endif | |
| 61 | |
| 62 /* Did not find string in the proc file, or not Linux ELF. */ | |
| 63 return FALSE; | |
| 64 } | |
| 65 | |
| 66 #endif | |
| 67 | |
| 68 pixman_implementation_t * | |
| 69 _pixman_mips_get_implementations (pixman_implementation_t *imp) | |
| 70 { | |
| 71 #ifdef USE_LOONGSON_MMI | |
| 72 /* I really don't know if some Loongson CPUs don't have MMI. */ | |
| 73 if (!_pixman_disabled ("loongson-mmi") && have_feature ("Loongson")) | |
| 74 imp = _pixman_implementation_create_mmx (imp); | |
| 75 #endif | |
| 76 | |
| 77 #ifdef USE_MIPS_DSPR2 | |
| 78 if (!_pixman_disabled ("mips-dspr2")) | |
| 79 { | |
| 80 int already_compiling_everything_for_dspr2 = 0; | |
| 81 #if defined(__mips_dsp) && (__mips_dsp_rev >= 2) | |
| 82 already_compiling_everything_for_dspr2 = 1; | |
| 83 #endif | |
| 84 if (already_compiling_everything_for_dspr2 || | |
| 85 /* Only currently available MIPS core that supports DSPr2 is 74K. */ | |
| 86 have_feature ("MIPS 74K")) | |
| 87 { | |
| 88 imp = _pixman_implementation_create_mips_dspr2 (imp); | |
| 89 } | |
| 90 } | |
| 91 #endif | |
| 92 | |
| 93 return imp; | |
| 94 } |
