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| 1 /* | 1 /* |
| 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. | 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ | 9 */ |
| 10 | 10 |
| 11 #include <stdlib.h> | 11 #include <stdlib.h> |
| 12 #include <string.h> | 12 #include <string.h> |
| 13 #include "arm.h" | 13 #include "vpx_ports/arm.h" |
| 14 #include "./vpx_config.h" |
| 14 | 15 |
| 15 #ifdef WINAPI_FAMILY | 16 #ifdef WINAPI_FAMILY |
| 16 #include <winapifamily.h> | 17 #include <winapifamily.h> |
| 17 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) | 18 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) |
| 18 #define getenv(x) NULL | 19 #define getenv(x) NULL |
| 19 #endif | 20 #endif |
| 20 #endif | 21 #endif |
| 21 | 22 |
| 22 static int arm_cpu_env_flags(int *flags) { | 23 static int arm_cpu_env_flags(int *flags) { |
| 23 char *env; | 24 char *env; |
| (...skipping 23 matching lines...) Expand all Loading... |
| 47 if (!arm_cpu_env_flags(&flags)) { | 48 if (!arm_cpu_env_flags(&flags)) { |
| 48 return flags; | 49 return flags; |
| 49 } | 50 } |
| 50 mask = arm_cpu_env_mask(); | 51 mask = arm_cpu_env_mask(); |
| 51 #if HAVE_EDSP | 52 #if HAVE_EDSP |
| 52 flags |= HAS_EDSP; | 53 flags |= HAS_EDSP; |
| 53 #endif /* HAVE_EDSP */ | 54 #endif /* HAVE_EDSP */ |
| 54 #if HAVE_MEDIA | 55 #if HAVE_MEDIA |
| 55 flags |= HAS_MEDIA; | 56 flags |= HAS_MEDIA; |
| 56 #endif /* HAVE_MEDIA */ | 57 #endif /* HAVE_MEDIA */ |
| 57 #if HAVE_NEON | 58 #if HAVE_NEON || HAVE_NEON_ASM |
| 58 flags |= HAS_NEON; | 59 flags |= HAS_NEON; |
| 59 #endif /* HAVE_NEON */ | 60 #endif /* HAVE_NEON || HAVE_NEON_ASM */ |
| 60 return flags & mask; | 61 return flags & mask; |
| 61 } | 62 } |
| 62 | 63 |
| 63 #elif defined(_MSC_VER) /* end !CONFIG_RUNTIME_CPU_DETECT */ | 64 #elif defined(_MSC_VER) /* end !CONFIG_RUNTIME_CPU_DETECT */ |
| 64 /*For GetExceptionCode() and EXCEPTION_ILLEGAL_INSTRUCTION.*/ | 65 /*For GetExceptionCode() and EXCEPTION_ILLEGAL_INSTRUCTION.*/ |
| 65 #define WIN32_LEAN_AND_MEAN | 66 #define WIN32_LEAN_AND_MEAN |
| 66 #define WIN32_EXTRA_LEAN | 67 #define WIN32_EXTRA_LEAN |
| 67 #include <windows.h> | 68 #include <windows.h> |
| 68 | 69 |
| 69 int arm_cpu_caps(void) { | 70 int arm_cpu_caps(void) { |
| (...skipping 10 matching lines...) Expand all Loading... |
| 80 #if HAVE_EDSP | 81 #if HAVE_EDSP |
| 81 if (mask & HAS_EDSP) { | 82 if (mask & HAS_EDSP) { |
| 82 __try { | 83 __try { |
| 83 /*PLD [r13]*/ | 84 /*PLD [r13]*/ |
| 84 __emit(0xF5DDF000); | 85 __emit(0xF5DDF000); |
| 85 flags |= HAS_EDSP; | 86 flags |= HAS_EDSP; |
| 86 } __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) { | 87 } __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) { |
| 87 /*Ignore exception.*/ | 88 /*Ignore exception.*/ |
| 88 } | 89 } |
| 89 } | 90 } |
| 91 #endif /* HAVE_EDSP */ |
| 90 #if HAVE_MEDIA | 92 #if HAVE_MEDIA |
| 91 if (mask & HAS_MEDIA) | 93 if (mask & HAS_MEDIA) |
| 92 __try { | 94 __try { |
| 93 /*SHADD8 r3,r3,r3*/ | 95 /*SHADD8 r3,r3,r3*/ |
| 94 __emit(0xE6333F93); | 96 __emit(0xE6333F93); |
| 95 flags |= HAS_MEDIA; | 97 flags |= HAS_MEDIA; |
| 96 } __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) { | 98 } __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) { |
| 97 /*Ignore exception.*/ | 99 /*Ignore exception.*/ |
| 98 } | 100 } |
| 99 } | 101 } |
| 100 #if HAVE_NEON | 102 #endif /* HAVE_MEDIA */ |
| 103 #if HAVE_NEON || HAVE_NEON_ASM |
| 101 if (mask &HAS_NEON) { | 104 if (mask &HAS_NEON) { |
| 102 __try { | 105 __try { |
| 103 /*VORR q0,q0,q0*/ | 106 /*VORR q0,q0,q0*/ |
| 104 __emit(0xF2200150); | 107 __emit(0xF2200150); |
| 105 flags |= HAS_NEON; | 108 flags |= HAS_NEON; |
| 106 } __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) { | 109 } __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) { |
| 107 /*Ignore exception.*/ | 110 /*Ignore exception.*/ |
| 108 } | 111 } |
| 109 } | 112 } |
| 110 #endif /* HAVE_NEON */ | 113 #endif /* HAVE_NEON || HAVE_NEON_ASM */ |
| 111 #endif /* HAVE_MEDIA */ | |
| 112 #endif /* HAVE_EDSP */ | |
| 113 return flags & mask; | 114 return flags & mask; |
| 114 } | 115 } |
| 115 | 116 |
| 116 #elif defined(__ANDROID__) /* end _MSC_VER */ | 117 #elif defined(__ANDROID__) /* end _MSC_VER */ |
| 117 #include <cpu-features.h> | 118 #include <cpu-features.h> |
| 118 | 119 |
| 119 int arm_cpu_caps(void) { | 120 int arm_cpu_caps(void) { |
| 120 int flags; | 121 int flags; |
| 121 int mask; | 122 int mask; |
| 122 uint64_t features; | 123 uint64_t features; |
| 123 if (!arm_cpu_env_flags(&flags)) { | 124 if (!arm_cpu_env_flags(&flags)) { |
| 124 return flags; | 125 return flags; |
| 125 } | 126 } |
| 126 mask = arm_cpu_env_mask(); | 127 mask = arm_cpu_env_mask(); |
| 127 features = android_getCpuFeatures(); | 128 features = android_getCpuFeatures(); |
| 128 | 129 |
| 129 #if HAVE_EDSP | 130 #if HAVE_EDSP |
| 130 flags |= HAS_EDSP; | 131 flags |= HAS_EDSP; |
| 131 #endif /* HAVE_EDSP */ | 132 #endif /* HAVE_EDSP */ |
| 132 #if HAVE_MEDIA | 133 #if HAVE_MEDIA |
| 133 flags |= HAS_MEDIA; | 134 flags |= HAS_MEDIA; |
| 134 #endif /* HAVE_MEDIA */ | 135 #endif /* HAVE_MEDIA */ |
| 135 #if HAVE_NEON | 136 #if HAVE_NEON || HAVE_NEON_ASM |
| 136 if (features & ANDROID_CPU_ARM_FEATURE_NEON) | 137 if (features & ANDROID_CPU_ARM_FEATURE_NEON) |
| 137 flags |= HAS_NEON; | 138 flags |= HAS_NEON; |
| 138 #endif /* HAVE_NEON */ | 139 #endif /* HAVE_NEON || HAVE_NEON_ASM */ |
| 139 return flags & mask; | 140 return flags & mask; |
| 140 } | 141 } |
| 141 | 142 |
| 142 #elif defined(__linux__) /* end __ANDROID__ */ | 143 #elif defined(__linux__) /* end __ANDROID__ */ |
| 143 | 144 |
| 144 #include <stdio.h> | 145 #include <stdio.h> |
| 145 | 146 |
| 146 int arm_cpu_caps(void) { | 147 int arm_cpu_caps(void) { |
| 147 FILE *fin; | 148 FILE *fin; |
| 148 int flags; | 149 int flags; |
| 149 int mask; | 150 int mask; |
| 150 if (!arm_cpu_env_flags(&flags)) { | 151 if (!arm_cpu_env_flags(&flags)) { |
| 151 return flags; | 152 return flags; |
| 152 } | 153 } |
| 153 mask = arm_cpu_env_mask(); | 154 mask = arm_cpu_env_mask(); |
| 154 /* Reading /proc/self/auxv would be easier, but that doesn't work reliably | 155 /* Reading /proc/self/auxv would be easier, but that doesn't work reliably |
| 155 * on Android. | 156 * on Android. |
| 156 * This also means that detection will fail in Scratchbox. | 157 * This also means that detection will fail in Scratchbox. |
| 157 */ | 158 */ |
| 158 fin = fopen("/proc/cpuinfo", "r"); | 159 fin = fopen("/proc/cpuinfo", "r"); |
| 159 if (fin != NULL) { | 160 if (fin != NULL) { |
| 160 /* 512 should be enough for anybody (it's even enough for all the flags | 161 /* 512 should be enough for anybody (it's even enough for all the flags |
| 161 * that x86 has accumulated... so far). | 162 * that x86 has accumulated... so far). |
| 162 */ | 163 */ |
| 163 char buf[512]; | 164 char buf[512]; |
| 164 while (fgets(buf, 511, fin) != NULL) { | 165 while (fgets(buf, 511, fin) != NULL) { |
| 165 #if HAVE_EDSP || HAVE_NEON | 166 #if HAVE_EDSP || HAVE_NEON || HAVE_NEON_ASM |
| 166 if (memcmp(buf, "Features", 8) == 0) { | 167 if (memcmp(buf, "Features", 8) == 0) { |
| 167 char *p; | 168 char *p; |
| 168 #if HAVE_EDSP | 169 #if HAVE_EDSP |
| 169 p = strstr(buf, " edsp"); | 170 p = strstr(buf, " edsp"); |
| 170 if (p != NULL && (p[5] == ' ' || p[5] == '\n')) { | 171 if (p != NULL && (p[5] == ' ' || p[5] == '\n')) { |
| 171 flags |= HAS_EDSP; | 172 flags |= HAS_EDSP; |
| 172 } | 173 } |
| 173 #if HAVE_NEON | 174 #endif /* HAVE_EDSP */ |
| 175 #if HAVE_NEON || HAVE_NEON_ASM |
| 174 p = strstr(buf, " neon"); | 176 p = strstr(buf, " neon"); |
| 175 if (p != NULL && (p[5] == ' ' || p[5] == '\n')) { | 177 if (p != NULL && (p[5] == ' ' || p[5] == '\n')) { |
| 176 flags |= HAS_NEON; | 178 flags |= HAS_NEON; |
| 177 } | 179 } |
| 178 #endif /* HAVE_NEON */ | 180 #endif /* HAVE_NEON || HAVE_NEON_ASM */ |
| 179 #endif /* HAVE_EDSP */ | |
| 180 } | 181 } |
| 181 #endif /* HAVE_EDSP || HAVE_NEON */ | 182 #endif /* HAVE_EDSP || HAVE_NEON || HAVE_NEON_ASM */ |
| 182 #if HAVE_MEDIA | 183 #if HAVE_MEDIA |
| 183 if (memcmp(buf, "CPU architecture:", 17) == 0) { | 184 if (memcmp(buf, "CPU architecture:", 17) == 0) { |
| 184 int version; | 185 int version; |
| 185 version = atoi(buf + 17); | 186 version = atoi(buf + 17); |
| 186 if (version >= 6) { | 187 if (version >= 6) { |
| 187 flags |= HAS_MEDIA; | 188 flags |= HAS_MEDIA; |
| 188 } | 189 } |
| 189 } | 190 } |
| 190 #endif /* HAVE_MEDIA */ | 191 #endif /* HAVE_MEDIA */ |
| 191 } | 192 } |
| 192 fclose(fin); | 193 fclose(fin); |
| 193 } | 194 } |
| 194 return flags & mask; | 195 return flags & mask; |
| 195 } | 196 } |
| 196 #else /* end __linux__ */ | 197 #else /* end __linux__ */ |
| 197 #error "--enable-runtime-cpu-detect selected, but no CPU detection method " \ | 198 #error "--enable-runtime-cpu-detect selected, but no CPU detection method " \ |
| 198 "available for your platform. Reconfigure with --disable-runtime-cpu-detect." | 199 "available for your platform. Reconfigure with --disable-runtime-cpu-detect." |
| 199 #endif | 200 #endif |
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