build: Split test programs off into separate files

This avoids spurious library rebuilds when only the test program
code is changed and simplifies the build system.

1 files changed, 136 insertions, 0 deletions

diff --git a/libavutil/cpu-test.c b/libavutil/cpu-test.c
new file mode 100644
index 0000000000..a2c3b38c0d
--- /dev/null
+++ b/libavutil/cpu-test.c
@@ -0,0 +1,136 @@
+/*
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#elif !HAVE_GETOPT
+#include "compat/getopt.c"
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+
+#include "avstring.h"
+#include "common.h"
+#include "cpu.h"
+
+static const struct {
+    int flag;
+    const char *name;
+} cpu_flag_tab[] = {
+#if   ARCH_AARCH64
+    { AV_CPU_FLAG_ARMV8,     "armv8"      },
+    { AV_CPU_FLAG_NEON,      "neon"       },
+    { AV_CPU_FLAG_VFP,       "vfp"        },
+#elif ARCH_ARM
+    { AV_CPU_FLAG_ARMV5TE,   "armv5te"    },
+    { AV_CPU_FLAG_ARMV6,     "armv6"      },
+    { AV_CPU_FLAG_ARMV6T2,   "armv6t2"    },
+    { AV_CPU_FLAG_VFP,       "vfp"        },
+    { AV_CPU_FLAG_VFP_VM,    "vfp_vm"     },
+    { AV_CPU_FLAG_VFPV3,     "vfpv3"      },
+    { AV_CPU_FLAG_NEON,      "neon"       },
+#elif ARCH_PPC
+    { AV_CPU_FLAG_ALTIVEC,   "altivec"    },
+#elif ARCH_X86
+    { AV_CPU_FLAG_MMX,       "mmx"        },
+    { AV_CPU_FLAG_MMXEXT,    "mmxext"     },
+    { AV_CPU_FLAG_SSE,       "sse"        },
+    { AV_CPU_FLAG_SSE2,      "sse2"       },
+    { AV_CPU_FLAG_SSE2SLOW,  "sse2(slow)" },
+    { AV_CPU_FLAG_SSE3,      "sse3"       },
+    { AV_CPU_FLAG_SSE3SLOW,  "sse3(slow)" },
+    { AV_CPU_FLAG_SSSE3,     "ssse3"      },
+    { AV_CPU_FLAG_ATOM,      "atom"       },
+    { AV_CPU_FLAG_SSE4,      "sse4.1"     },
+    { AV_CPU_FLAG_SSE42,     "sse4.2"     },
+    { AV_CPU_FLAG_AVX,       "avx"        },
+    { AV_CPU_FLAG_AVXSLOW,   "avxslow"    },
+    { AV_CPU_FLAG_XOP,       "xop"        },
+    { AV_CPU_FLAG_FMA3,      "fma3"       },
+    { AV_CPU_FLAG_FMA4,      "fma4"       },
+    { AV_CPU_FLAG_3DNOW,     "3dnow"      },
+    { AV_CPU_FLAG_3DNOWEXT,  "3dnowext"   },
+    { AV_CPU_FLAG_CMOV,      "cmov"       },
+    { AV_CPU_FLAG_AVX2,      "avx2"       },
+    { AV_CPU_FLAG_BMI1,      "bmi1"       },
+    { AV_CPU_FLAG_BMI2,      "bmi2"       },
+#endif
+    { 0 }
+};
+
+static void print_cpu_flags(int cpu_flags, const char *type)
+{
+    int i;
+
+    fprintf(stderr, "cpu_flags(%s) = 0x%08X\n", type, cpu_flags);
+    fprintf(stderr, "cpu_flags_str(%s) =", type);
+    for (i = 0; cpu_flag_tab[i].flag; i++)
+        if (cpu_flags & cpu_flag_tab[i].flag)
+            fprintf(stderr, " %s", cpu_flag_tab[i].name);
+    fprintf(stderr, "\n");
+}
+
+
+int main(int argc, char **argv)
+{
+    int cpu_flags_raw = av_get_cpu_flags();
+    int cpu_flags_eff;
+    int cpu_count = av_cpu_count();
+    char threads[5] = "auto";
+
+    if (cpu_flags_raw < 0)
+        return 1;
+
+    for (;;) {
+        int c = getopt(argc, argv, "c:t:");
+        if (c == -1)
+            break;
+        switch (c) {
+        case 'c':
+        {
+            int cpuflags = av_parse_cpu_flags(optarg);
+            if (cpuflags < 0)
+                return 2;
+            av_set_cpu_flags_mask(cpuflags);
+            break;
+        }
+        case 't':
+        {
+            int len = av_strlcpy(threads, optarg, sizeof(threads));
+            if (len >= sizeof(threads)) {
+                fprintf(stderr, "Invalid thread count '%s'\n", optarg);
+                return 2;
+            }
+        }
+        }
+    }
+
+    cpu_flags_eff = av_get_cpu_flags();
+
+    if (cpu_flags_eff < 0)
+        return 3;
+
+    print_cpu_flags(cpu_flags_raw, "raw");
+    print_cpu_flags(cpu_flags_eff, "effective");
+    fprintf(stderr, "threads = %s (cpu_count = %d)\n", threads, cpu_count);
+
+    return 0;
+}