diff options
Diffstat (limited to 'libs/pixman-0.40.0/pixman/pixman-arm.c')
| -rw-r--r-- | libs/pixman-0.40.0/pixman/pixman-arm.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/libs/pixman-0.40.0/pixman/pixman-arm.c b/libs/pixman-0.40.0/pixman/pixman-arm.c deleted file mode 100644 index 4a2ae85..0000000 --- a/libs/pixman-0.40.0/pixman/pixman-arm.c +++ /dev/null @@ -1,250 +0,0 @@ -/* - * 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" - -typedef enum -{ - ARM_V7 = (1 << 0), - ARM_V6 = (1 << 1), - ARM_VFP = (1 << 2), - ARM_NEON = (1 << 3), - ARM_IWMMXT = (1 << 4) -} arm_cpu_features_t; - -#if defined(USE_ARM_SIMD) || defined(USE_ARM_NEON) || defined(USE_ARM_IWMMXT) - -#if defined(_MSC_VER) - -/* Needed for EXCEPTION_ILLEGAL_INSTRUCTION */ -#include <windows.h> - -extern int pixman_msvc_try_arm_neon_op (); -extern int pixman_msvc_try_arm_simd_op (); - -static arm_cpu_features_t -detect_cpu_features (void) -{ - arm_cpu_features_t features = 0; - - __try - { - pixman_msvc_try_arm_simd_op (); - features |= ARM_V6; - } - __except (GetExceptionCode () == EXCEPTION_ILLEGAL_INSTRUCTION) - { - } - - __try - { - pixman_msvc_try_arm_neon_op (); - features |= ARM_NEON; - } - __except (GetExceptionCode () == EXCEPTION_ILLEGAL_INSTRUCTION) - { - } - - return features; -} - -#elif defined(__APPLE__) && defined(TARGET_OS_IPHONE) /* iOS */ - -#include "TargetConditionals.h" - -static arm_cpu_features_t -detect_cpu_features (void) -{ - arm_cpu_features_t features = 0; - - features |= ARM_V6; - - /* Detection of ARM NEON on iOS is fairly simple because iOS binaries - * contain separate executable images for each processor architecture. - * So all we have to do is detect the armv7 architecture build. The - * operating system automatically runs the armv7 binary for armv7 devices - * and the armv6 binary for armv6 devices. - */ -#if defined(__ARM_NEON__) - features |= ARM_NEON; -#endif - - return features; -} - -#elif defined(__ANDROID__) || defined(ANDROID) /* Android */ - -#include <cpu-features.h> - -static arm_cpu_features_t -detect_cpu_features (void) -{ - arm_cpu_features_t features = 0; - AndroidCpuFamily cpu_family; - uint64_t cpu_features; - - cpu_family = android_getCpuFamily(); - cpu_features = android_getCpuFeatures(); - - if (cpu_family == ANDROID_CPU_FAMILY_ARM) - { - if (cpu_features & ANDROID_CPU_ARM_FEATURE_ARMv7) - features |= ARM_V7; - - if (cpu_features & ANDROID_CPU_ARM_FEATURE_VFPv3) - features |= ARM_VFP; - - if (cpu_features & ANDROID_CPU_ARM_FEATURE_NEON) - features |= ARM_NEON; - } - - return features; -} - -#elif defined (__linux__) /* linux ELF */ - -#include <unistd.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/mman.h> -#include <fcntl.h> -#include <string.h> -#include <elf.h> - -static arm_cpu_features_t -detect_cpu_features (void) -{ - arm_cpu_features_t features = 0; - Elf32_auxv_t aux; - int fd; - - fd = open ("/proc/self/auxv", O_RDONLY); - if (fd >= 0) - { - while (read (fd, &aux, sizeof(Elf32_auxv_t)) == sizeof(Elf32_auxv_t)) - { - if (aux.a_type == AT_HWCAP) - { - uint32_t hwcap = aux.a_un.a_val; - - /* hardcode these values to avoid depending on specific - * versions of the hwcap header, e.g. HWCAP_NEON - */ - if ((hwcap & 64) != 0) - features |= ARM_VFP; - if ((hwcap & 512) != 0) - features |= ARM_IWMMXT; - /* this flag is only present on kernel 2.6.29 */ - if ((hwcap & 4096) != 0) - features |= ARM_NEON; - } - else if (aux.a_type == AT_PLATFORM) - { - const char *plat = (const char*) aux.a_un.a_val; - - if (strncmp (plat, "v7l", 3) == 0) - features |= (ARM_V7 | ARM_V6); - else if (strncmp (plat, "v6l", 3) == 0) - features |= ARM_V6; - } - } - close (fd); - } - - return features; -} - -#elif defined (_3DS) /* 3DS homebrew (devkitARM) */ - -static arm_cpu_features_t -detect_cpu_features (void) -{ - arm_cpu_features_t features = 0; - - features |= ARM_V6; - - return features; -} - -#elif defined (PSP2) || defined (__SWITCH__) -/* Vita (VitaSDK) or Switch (devkitA64) homebrew */ - -static arm_cpu_features_t -detect_cpu_features (void) -{ - arm_cpu_features_t features = 0; - - features |= ARM_NEON; - - return features; -} - -#else /* Unknown */ - -static arm_cpu_features_t -detect_cpu_features (void) -{ - return 0; -} - -#endif /* Linux elf */ - -static pixman_bool_t -have_feature (arm_cpu_features_t feature) -{ - static pixman_bool_t initialized; - static arm_cpu_features_t features; - - if (!initialized) - { - features = detect_cpu_features(); - initialized = TRUE; - } - - return (features & feature) == feature; -} - -#endif /* USE_ARM_SIMD || USE_ARM_NEON || USE_ARM_IWMMXT */ - -pixman_implementation_t * -_pixman_arm_get_implementations (pixman_implementation_t *imp) -{ -#ifdef USE_ARM_SIMD - if (!_pixman_disabled ("arm-simd") && have_feature (ARM_V6)) - imp = _pixman_implementation_create_arm_simd (imp); -#endif - -#ifdef USE_ARM_IWMMXT - if (!_pixman_disabled ("arm-iwmmxt") && have_feature (ARM_IWMMXT)) - imp = _pixman_implementation_create_mmx (imp); -#endif - -#ifdef USE_ARM_NEON - if (!_pixman_disabled ("arm-neon") && have_feature (ARM_NEON)) - imp = _pixman_implementation_create_arm_neon (imp); -#endif - - return imp; -} |