1 files changed, 92 insertions, 0 deletions
diff --git a/media/libvpx/vp8/common/variance.h b/media/libvpx/vp8/common/variance.h
new file mode 100644
index 000000000..c6c9f41bf
--- /dev/null
+++ b/media/libvpx/vp8/common/variance.h
@@ -0,0 +1,92 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP8_COMMON_VARIANCE_H_
+#define VP8_COMMON_VARIANCE_H_
+
+#include "vpx_config.h"
+
+#include "vpx/vpx_integer.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef unsigned int(*vpx_sad_fn_t)(
+    const uint8_t *src_ptr,
+    int source_stride,
+    const uint8_t *ref_ptr,
+    int ref_stride);
+
+typedef void (*vp8_copy32xn_fn_t)(
+    const unsigned char *src_ptr,
+    int source_stride,
+    unsigned char *ref_ptr,
+    int ref_stride,
+    int n);
+
+typedef void (*vpx_sad_multi_fn_t)(
+    const unsigned char *src_ptr,
+    int source_stride,
+    const unsigned char *ref_array,
+    int  ref_stride,
+    unsigned int *sad_array);
+
+typedef void (*vpx_sad_multi_d_fn_t)
+    (
+     const unsigned char *src_ptr,
+     int source_stride,
+     const unsigned char * const ref_array[],
+     int  ref_stride,
+     unsigned int *sad_array
+    );
+
+typedef unsigned int (*vpx_variance_fn_t)
+    (
+     const unsigned char *src_ptr,
+     int source_stride,
+     const unsigned char *ref_ptr,
+     int  ref_stride,
+     unsigned int *sse
+    );
+
+typedef unsigned int (*vp8_subpixvariance_fn_t)
+    (
+      const unsigned char  *src_ptr,
+      int  source_stride,
+      int  xoffset,
+      int  yoffset,
+      const unsigned char *ref_ptr,
+      int Refstride,
+      unsigned int *sse
+    );
+
+typedef struct variance_vtable
+{
+    vpx_sad_fn_t            sdf;
+    vpx_variance_fn_t       vf;
+    vp8_subpixvariance_fn_t svf;
+    vpx_variance_fn_t       svf_halfpix_h;
+    vpx_variance_fn_t       svf_halfpix_v;
+    vpx_variance_fn_t       svf_halfpix_hv;
+    vpx_sad_multi_fn_t      sdx3f;
+    vpx_sad_multi_fn_t      sdx8f;
+    vpx_sad_multi_d_fn_t    sdx4df;
+#if ARCH_X86 || ARCH_X86_64
+    vp8_copy32xn_fn_t       copymem;
+#endif
+} vp8_variance_fn_ptr_t;
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_VARIANCE_H_