gfx/cairo/libpixman/src/pixman-mips.c@b8a032363ba2 (annotated)
gfx/cairo/libpixman/src/pixman-mips.c
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright © 2000 SuSE, Inc. |
| michael@0 | 3 | * Copyright © 2007 Red Hat, Inc. |
| michael@0 | 4 | * |
| michael@0 | 5 | * Permission to use, copy, modify, distribute, and sell this software and its |
| michael@0 | 6 | * documentation for any purpose is hereby granted without fee, provided that |
| michael@0 | 7 | * the above copyright notice appear in all copies and that both that |
| michael@0 | 8 | * copyright notice and this permission notice appear in supporting |
| michael@0 | 9 | * documentation, and that the name of SuSE not be used in advertising or |
| michael@0 | 10 | * publicity pertaining to distribution of the software without specific, |
| michael@0 | 11 | * written prior permission. SuSE makes no representations about the |
| michael@0 | 12 | * suitability of this software for any purpose. It is provided "as is" |
| michael@0 | 13 | * without express or implied warranty. |
| michael@0 | 14 | * |
| michael@0 | 15 | * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL |
| michael@0 | 16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE |
| michael@0 | 17 | * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| michael@0 | 18 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| michael@0 | 19 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| michael@0 | 20 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| michael@0 | 21 | */ |
| michael@0 | 22 | #ifdef HAVE_CONFIG_H |
| michael@0 | 23 | #include <config.h> |
| michael@0 | 24 | #endif |
| michael@0 | 25 | |
| michael@0 | 26 | #include "pixman-private.h" |
| michael@0 | 27 | |
| michael@0 | 28 | #if defined(USE_MIPS_DSPR2) || defined(USE_LOONGSON_MMI) |
| michael@0 | 29 | |
| michael@0 | 30 | #include <string.h> |
| michael@0 | 31 | #include <stdlib.h> |
| michael@0 | 32 | |
| michael@0 | 33 | static pixman_bool_t |
| michael@0 | 34 | have_feature (const char *search_string) |
| michael@0 | 35 | { |
| michael@0 | 36 | #if defined (__linux__) /* linux ELF */ |
| michael@0 | 37 | /* Simple detection of MIPS features at runtime for Linux. |
| michael@0 | 38 | * It is based on /proc/cpuinfo, which reveals hardware configuration |
| michael@0 | 39 | * to user-space applications. According to MIPS (early 2010), no similar |
| michael@0 | 40 | * facility is universally available on the MIPS architectures, so it's up |
| michael@0 | 41 | * to individual OSes to provide such. |
| michael@0 | 42 | */ |
| michael@0 | 43 | const char *file_name = "/proc/cpuinfo"; |
| michael@0 | 44 | char cpuinfo_line[256]; |
| michael@0 | 45 | FILE *f = NULL; |
| michael@0 | 46 | |
| michael@0 | 47 | if ((f = fopen (file_name, "r")) == NULL) |
| michael@0 | 48 | return FALSE; |
| michael@0 | 49 | |
| michael@0 | 50 | while (fgets (cpuinfo_line, sizeof (cpuinfo_line), f) != NULL) |
| michael@0 | 51 | { |
| michael@0 | 52 | if (strstr (cpuinfo_line, search_string) != NULL) |
| michael@0 | 53 | { |
| michael@0 | 54 | fclose (f); |
| michael@0 | 55 | return TRUE; |
| michael@0 | 56 | } |
| michael@0 | 57 | } |
| michael@0 | 58 | |
| michael@0 | 59 | fclose (f); |
| michael@0 | 60 | #endif |
| michael@0 | 61 | |
| michael@0 | 62 | /* Did not find string in the proc file, or not Linux ELF. */ |
| michael@0 | 63 | return FALSE; |
| michael@0 | 64 | } |
| michael@0 | 65 | |
| michael@0 | 66 | #endif |
| michael@0 | 67 | |
| michael@0 | 68 | pixman_implementation_t * |
| michael@0 | 69 | _pixman_mips_get_implementations (pixman_implementation_t *imp) |
| michael@0 | 70 | { |
| michael@0 | 71 | #ifdef USE_LOONGSON_MMI |
| michael@0 | 72 | /* I really don't know if some Loongson CPUs don't have MMI. */ |
| michael@0 | 73 | if (!_pixman_disabled ("loongson-mmi") && have_feature ("Loongson")) |
| michael@0 | 74 | imp = _pixman_implementation_create_mmx (imp); |
| michael@0 | 75 | #endif |
| michael@0 | 76 | |
| michael@0 | 77 | #ifdef USE_MIPS_DSPR2 |
| michael@0 | 78 | if (!_pixman_disabled ("mips-dspr2")) |
| michael@0 | 79 | { |
| michael@0 | 80 | int already_compiling_everything_for_dspr2 = 0; |
| michael@0 | 81 | #if defined(__mips_dsp) && (__mips_dsp_rev >= 2) |
| michael@0 | 82 | already_compiling_everything_for_dspr2 = 1; |
| michael@0 | 83 | #endif |
| michael@0 | 84 | if (already_compiling_everything_for_dspr2 || |
| michael@0 | 85 | /* Only currently available MIPS core that supports DSPr2 is 74K. */ |
| michael@0 | 86 | have_feature ("MIPS 74K")) |
| michael@0 | 87 | { |
| michael@0 | 88 | imp = _pixman_implementation_create_mips_dspr2 (imp); |
| michael@0 | 89 | } |
| michael@0 | 90 | } |
| michael@0 | 91 | #endif |
| michael@0 | 92 | |
| michael@0 | 93 | return imp; |
| michael@0 | 94 | } |
