| /* |
| * Copyright © 2000 SuSE, Inc. |
| * Copyright © 2007 Red Hat, Inc. |
| * |
| * Permission to use, copy, modify, distribute, and sell this software and its |
| * documentation for any purpose is hereby granted without fee, provided that |
| * the above copyright notice appear in all copies and that both that |
| * copyright notice and this permission notice appear in supporting |
| * documentation, and that the name of SuSE not be used in advertising or |
| * publicity pertaining to distribution of the software without specific, |
| * written prior permission. SuSE makes no representations about the |
| * suitability of this software for any purpose. It is provided "as is" |
| * without express or implied warranty. |
| * |
| * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE |
| * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include "pixman-private.h" |
| |
| #if defined(USE_MIPS_DSPR2) || defined(USE_LOONGSON_MMI) |
| |
| #include <string.h> |
| #include <stdlib.h> |
| |
| static pixman_bool_t |
| have_feature (const char *search_string) |
| { |
| #if defined (__linux__) /* linux ELF */ |
| /* Simple detection of MIPS features at runtime for Linux. |
| * It is based on /proc/cpuinfo, which reveals hardware configuration |
| * to user-space applications. According to MIPS (early 2010), no similar |
| * facility is universally available on the MIPS architectures, so it's up |
| * to individual OSes to provide such. |
| */ |
| const char *file_name = "/proc/cpuinfo"; |
| char cpuinfo_line[256]; |
| FILE *f = NULL; |
| |
| if ((f = fopen (file_name, "r")) == NULL) |
| return FALSE; |
| |
| while (fgets (cpuinfo_line, sizeof (cpuinfo_line), f) != NULL) |
| { |
| if (strstr (cpuinfo_line, search_string) != NULL) |
| { |
| fclose (f); |
| return TRUE; |
| } |
| } |
| |
| fclose (f); |
| #endif |
| |
| /* Did not find string in the proc file, or not Linux ELF. */ |
| return FALSE; |
| } |
| |
| #endif |
| |
| pixman_implementation_t * |
| _pixman_mips_get_implementations (pixman_implementation_t *imp) |
| { |
| #ifdef USE_LOONGSON_MMI |
| /* I really don't know if some Loongson CPUs don't have MMI. */ |
| if (!_pixman_disabled ("loongson-mmi") && have_feature ("Loongson")) |
| imp = _pixman_implementation_create_mmx (imp); |
| #endif |
| |
| #ifdef USE_MIPS_DSPR2 |
| if (!_pixman_disabled ("mips-dspr2")) |
| { |
| int already_compiling_everything_for_dspr2 = 0; |
| #if defined(__mips_dsp) && (__mips_dsp_rev >= 2) |
| already_compiling_everything_for_dspr2 = 1; |
| #endif |
| if (already_compiling_everything_for_dspr2 || |
| /* Only currently available MIPS core that supports DSPr2 is 74K. */ |
| have_feature ("MIPS 74K")) |
| { |
| imp = _pixman_implementation_create_mips_dspr2 (imp); |
| } |
| } |
| #endif |
| |
| return imp; |
| } |