libvpx: Add VP9 decoder.

source/libvpx/vp9/encoder/x86/vp9_quantize_x86.h

+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license and patent
+ *  grant that can be found in the LICENSE file in the root of the source
+ *  tree. All contributing project authors may be found in the AUTHORS
+ *  file in the root of the source tree.
+ */
+
+#ifndef VP9_ENCODER_X86_VP9_QUANTIZE_X86_H_
+#define VP9_ENCODER_X86_VP9_QUANTIZE_X86_H_
+
+
+/* Note:
+ *
+ * This platform is commonly built for runtime CPU detection. If you modify
+ * any of the function mappings present in this file, be sure to also update
+ * them in the function pointer initialization code
+ */
+#if HAVE_MMX
+
+#endif /* HAVE_MMX */
+
+
+#if HAVE_SSE2
+extern prototype_quantize_block(vp9_regular_quantize_b_sse2);
+#if !CONFIG_RUNTIME_CPU_DETECT
+
+#undef vp9_quantize_quantb
+#define vp9_quantize_quantb vp9_regular_quantize_b_sse2
+#endif /* !CONFIG_RUNTIME_CPU_DETECT */
+
+#endif /* HAVE_SSE2 */
+
+
+#if HAVE_SSE4_1
+extern prototype_quantize_block(vp9_regular_quantize_b_sse4);
+
+#if !CONFIG_RUNTIME_CPU_DETECT
+
+#undef vp9_quantize_quantb
+#define vp9_quantize_quantb vp9_regular_quantize_b_sse4
+
+#endif /* !CONFIG_RUNTIME_CPU_DETECT */
+
+#endif /* HAVE_SSE4_1 */
+
+#endif /* QUANTIZE_X86_H */