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authorDiego Biurrun <diego@biurrun.de>2012-08-29 18:53:14 +0200
committerDiego Biurrun <diego@biurrun.de>2012-09-04 01:44:59 +0200
commitf82c4fb27fa7f8afbe8411c9d37e85facbbc87ae (patch)
tree21969411c24951db8166ef063bd45b28e12a0744 /libavutil
parenta84ac7a86055144d21a6ecea188ae3596ec0a283 (diff)
x86: Add convenience macros to check for CPU extensions and flags
Diffstat (limited to 'libavutil')
-rw-r--r--libavutil/x86/cpu.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/libavutil/x86/cpu.h b/libavutil/x86/cpu.h
new file mode 100644
index 0000000000..e14cb57416
--- /dev/null
+++ b/libavutil/x86/cpu.h
@@ -0,0 +1,57 @@
+/*
+ * 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
+ */
+
+#ifndef AVUTIL_X86_CPU_H
+#define AVUTIL_X86_CPU_H
+
+#include "config.h"
+#include "libavutil/cpu.h"
+
+#define CPUEXT(flags, suffix, cpuext) \
+ (HAVE_ ## cpuext ## suffix && ((flags) & AV_CPU_FLAG_ ## cpuext))
+
+#define AV_CPU_FLAG_AMD3DNOW AV_CPU_FLAG_3DNOW
+#define AV_CPU_FLAG_AMD3DNOWEXT AV_CPU_FLAG_3DNOWEXT
+
+#define EXTERNAL_AMD3DNOW(flags) CPUEXT(flags, _EXTERNAL, AMD3DNOW)
+#define EXTERNAL_AMD3DNOWEXT(flags) CPUEXT(flags, _EXTERNAL, AMD3DNOWEXT)
+#define EXTERNAL_MMX(flags) CPUEXT(flags, _EXTERNAL, MMX)
+#define EXTERNAL_MMXEXT(flags) CPUEXT(flags, _EXTERNAL, MMXEXT)
+#define EXTERNAL_SSE(flags) CPUEXT(flags, _EXTERNAL, SSE)
+#define EXTERNAL_SSE2(flags) CPUEXT(flags, _EXTERNAL, SSE2)
+#define EXTERNAL_SSE3(flags) CPUEXT(flags, _EXTERNAL, SSE3)
+#define EXTERNAL_SSSE3(flags) CPUEXT(flags, _EXTERNAL, SSSE3)
+#define EXTERNAL_SSE4(flags) CPUEXT(flags, _EXTERNAL, SSE4)
+#define EXTERNAL_SSE42(flags) CPUEXT(flags, _EXTERNAL, SSE42)
+#define EXTERNAL_AVX(flags) CPUEXT(flags, _EXTERNAL, AVX)
+#define EXTERNAL_FMA4(flags) CPUEXT(flags, _EXTERNAL, FMA4)
+
+#define INLINE_AMD3DNOW(flags) CPUEXT(flags, _INLINE, AMD3DNOW)
+#define INLINE_AMD3DNOWEXT(flags) CPUEXT(flags, _INLINE, AMD3DNOWEXT)
+#define INLINE_MMX(flags) CPUEXT(flags, _INLINE, MMX)
+#define INLINE_MMXEXT(flags) CPUEXT(flags, _INLINE, MMXEXT)
+#define INLINE_SSE(flags) CPUEXT(flags, _INLINE, SSE)
+#define INLINE_SSE2(flags) CPUEXT(flags, _INLINE, SSE2)
+#define INLINE_SSE3(flags) CPUEXT(flags, _INLINE, SSE3)
+#define INLINE_SSSE3(flags) CPUEXT(flags, _INLINE, SSSE3)
+#define INLINE_SSE4(flags) CPUEXT(flags, _INLINE, SSE4)
+#define INLINE_SSE42(flags) CPUEXT(flags, _INLINE, SSE42)
+#define INLINE_AVX(flags) CPUEXT(flags, _INLINE, AVX)
+#define INLINE_FMA4(flags) CPUEXT(flags, _INLINE, FMA4)
+
+#endif /* AVUTIL_X86_CPU_H */