#include <string.h>
#include "arm.h"
-static int arm_cpu_env_flags(int *flags)
-{
- char *env;
- env = getenv("VPX_SIMD_CAPS");
- if (env && *env)
- {
- *flags = (int)strtol(env, NULL, 0);
- return 0;
- }
- *flags = 0;
- return -1;
+static int arm_cpu_env_flags(int *flags) {
+ char *env;
+ env = getenv("VPX_SIMD_CAPS");
+ if (env && *env) {
+ *flags = (int)strtol(env, NULL, 0);
+ return 0;
+ }
+ *flags = 0;
+ return -1;
}
-static int arm_cpu_env_mask(void)
-{
- char *env;
- env = getenv("VPX_SIMD_CAPS_MASK");
- return env && *env ? (int)strtol(env, NULL, 0) : ~0;
+static int arm_cpu_env_mask(void) {
+ char *env;
+ env = getenv("VPX_SIMD_CAPS_MASK");
+ return env && *env ? (int)strtol(env, NULL, 0) : ~0;
}
#if !CONFIG_RUNTIME_CPU_DETECT
-int arm_cpu_caps(void)
-{
+int arm_cpu_caps(void) {
/* This function should actually be a no-op. There is no way to adjust any of
* these because the RTCD tables do not exist: the functions are called
* statically */
- int flags;
- int mask;
- if (!arm_cpu_env_flags(&flags))
- {
- return flags;
- }
- mask = arm_cpu_env_mask();
+ int flags;
+ int mask;
+ if (!arm_cpu_env_flags(&flags)) {
+ return flags;
+ }
+ mask = arm_cpu_env_mask();
#if HAVE_EDSP
- flags |= HAS_EDSP;
+ flags |= HAS_EDSP;
#endif /* HAVE_EDSP */
#if HAVE_MEDIA
- flags |= HAS_MEDIA;
+ flags |= HAS_MEDIA;
#endif /* HAVE_MEDIA */
#if HAVE_NEON
- flags |= HAS_NEON;
+ flags |= HAS_NEON;
#endif /* HAVE_NEON */
- return flags & mask;
+ return flags & mask;
}
#elif defined(_MSC_VER) /* end !CONFIG_RUNTIME_CPU_DETECT */
+
+#elif defined(_MSC_VER) /* end !CONFIG_RUNTIME_CPU_DETECT */
/*For GetExceptionCode() and EXCEPTION_ILLEGAL_INSTRUCTION.*/
#define WIN32_LEAN_AND_MEAN
#define WIN32_EXTRA_LEAN
#include <windows.h>
-int arm_cpu_caps(void)
-{
- int flags;
- int mask;
- if (!arm_cpu_env_flags(&flags))
- {
- return flags;
- }
- mask = arm_cpu_env_mask();
- /* MSVC has no inline __asm support for ARM, but it does let you __emit
- * instructions via their assembled hex code.
- * All of these instructions should be essentially nops.
- */
+int arm_cpu_caps(void) {
+ int flags;
+ int mask;
+ if (!arm_cpu_env_flags(&flags)) {
+ return flags;
+ }
+ mask = arm_cpu_env_mask();
+ /* MSVC has no inline __asm support for ARM, but it does let you __emit
+ * instructions via their assembled hex code.
+ * All of these instructions should be essentially nops.
+ */
#if HAVE_EDSP
- if (mask & HAS_EDSP)
- {
- __try
- {
- /*PLD [r13]*/
- __emit(0xF5DDF000);
- flags |= HAS_EDSP;
- }
- __except(GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION)
- {
- /*Ignore exception.*/
- }
+ if (mask & HAS_EDSP) {
+ __try {
+ /*PLD [r13]*/
+ __emit(0xF5DDF000);
+ flags |= HAS_EDSP;
+ } __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) {
+ /*Ignore exception.*/
}
+ }
#if HAVE_MEDIA
- if (mask & HAS_MEDIA)
- __try
- {
- /*SHADD8 r3,r3,r3*/
- __emit(0xE6333F93);
- flags |= HAS_MEDIA;
- }
- __except(GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION)
- {
- /*Ignore exception.*/
- }
- }
+ if (mask & HAS_MEDIA)
+ __try {
+ /*SHADD8 r3,r3,r3*/
+ __emit(0xE6333F93);
+ flags |= HAS_MEDIA;
+ } __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) {
+ /*Ignore exception.*/
+ }
+}
#if HAVE_NEON
- if (mask & HAS_NEON)
- {
- __try
- {
- /*VORR q0,q0,q0*/
- __emit(0xF2200150);
- flags |= HAS_NEON;
- }
- __except(GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION)
- {
- /*Ignore exception.*/
- }
- }
+if (mask &HAS_NEON) {
+ __try {
+ /*VORR q0,q0,q0*/
+ __emit(0xF2200150);
+ flags |= HAS_NEON;
+ } __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) {
+ /*Ignore exception.*/
+ }
+}
#endif /* HAVE_NEON */
#endif /* HAVE_MEDIA */
#endif /* HAVE_EDSP */
- return flags & mask;
+return flags & mask;
}
#elif defined(__ANDROID__) /* end _MSC_VER */
#include <cpu-features.h>
-int arm_cpu_caps(void)
-{
- int flags;
- int mask;
- uint64_t features;
- if (!arm_cpu_env_flags(&flags))
- {
- return flags;
- }
- mask = arm_cpu_env_mask();
- features = android_getCpuFeatures();
+int arm_cpu_caps(void) {
+ int flags;
+ int mask;
+ uint64_t features;
+ if (!arm_cpu_env_flags(&flags)) {
+ return flags;
+ }
+ mask = arm_cpu_env_mask();
+ features = android_getCpuFeatures();
#if HAVE_EDSP
- flags |= HAS_EDSP;
+ flags |= HAS_EDSP;
#endif /* HAVE_EDSP */
#if HAVE_MEDIA
- flags |= HAS_MEDIA;
+ flags |= HAS_MEDIA;
#endif /* HAVE_MEDIA */
#if HAVE_NEON
- if (features & ANDROID_CPU_ARM_FEATURE_NEON)
- flags |= HAS_NEON;
+ if (features & ANDROID_CPU_ARM_FEATURE_NEON)
+ flags |= HAS_NEON;
#endif /* HAVE_NEON */
- return flags & mask;
+ return flags & mask;
}
#elif defined(__linux__) /* end __ANDROID__ */
+
+#elif defined(__linux__) /* end __ANDROID__ */
#include <stdio.h>
-int arm_cpu_caps(void)
-{
- FILE *fin;
- int flags;
- int mask;
- if (!arm_cpu_env_flags(&flags))
- {
- return flags;
- }
- mask = arm_cpu_env_mask();
- /* Reading /proc/self/auxv would be easier, but that doesn't work reliably
- * on Android.
- * This also means that detection will fail in Scratchbox.
+int arm_cpu_caps(void) {
+ FILE *fin;
+ int flags;
+ int mask;
+ if (!arm_cpu_env_flags(&flags)) {
+ return flags;
+ }
+ mask = arm_cpu_env_mask();
+ /* Reading /proc/self/auxv would be easier, but that doesn't work reliably
+ * on Android.
+ * This also means that detection will fail in Scratchbox.
+ */
+ fin = fopen("/proc/cpuinfo", "r");
+ if (fin != NULL) {
+ /* 512 should be enough for anybody (it's even enough for all the flags
+ * that x86 has accumulated... so far).
*/
- fin = fopen("/proc/cpuinfo","r");
- if(fin != NULL)
- {
- /* 512 should be enough for anybody (it's even enough for all the flags
- * that x86 has accumulated... so far).
- */
- char buf[512];
- while (fgets(buf, 511, fin) != NULL)
- {
+ char buf[512];
+ while (fgets(buf, 511, fin) != NULL) {
#if HAVE_EDSP || HAVE_NEON
- if (memcmp(buf, "Features", 8) == 0)
- {
- char *p;
+ if (memcmp(buf, "Features", 8) == 0) {
+ char *p;
#if HAVE_EDSP
- p=strstr(buf, " edsp");
- if (p != NULL && (p[5] == ' ' || p[5] == '\n'))
- {
- flags |= HAS_EDSP;
- }
+ p = strstr(buf, " edsp");
+ if (p != NULL && (p[5] == ' ' || p[5] == '\n')) {
+ flags |= HAS_EDSP;
+ }
#if HAVE_NEON
- p = strstr(buf, " neon");
- if (p != NULL && (p[5] == ' ' || p[5] == '\n'))
- {
- flags |= HAS_NEON;
- }
+ p = strstr(buf, " neon");
+ if (p != NULL && (p[5] == ' ' || p[5] == '\n')) {
+ flags |= HAS_NEON;
+ }
#endif /* HAVE_NEON */
#endif /* HAVE_EDSP */
- }
+ }
#endif /* HAVE_EDSP || HAVE_NEON */
#if HAVE_MEDIA
- if (memcmp(buf, "CPU architecture:",17) == 0){
- int version;
- version = atoi(buf+17);
- if (version >= 6)
- {
- flags |= HAS_MEDIA;
- }
- }
-#endif /* HAVE_MEDIA */
+ if (memcmp(buf, "CPU architecture:", 17) == 0) {
+ int version;
+ version = atoi(buf + 17);
+ if (version >= 6) {
+ flags |= HAS_MEDIA;
}
- fclose(fin);
+ }
+#endif /* HAVE_MEDIA */
}
- return flags & mask;
+ fclose(fin);
+ }
+ return flags & mask;
}
#else /* end __linux__ */
#error "--enable-runtime-cpu-detect selected, but no CPU detection method " \
- "available for your platform. Reconfigure with --disable-runtime-cpu-detect."
+"available for your platform. Reconfigure with --disable-runtime-cpu-detect."
#endif
projects / platform / upstream / libvpx.git / blobdiff