Moved dequant idct into common

These functions are now used by the encoder.
This is WIP with the goal of creating a common idct/add for
the encoder and decoder.  A boost of 1.8% was seen for
the HD rt test clip used.

[Tero] Added needed changes to ARM side.

Change-Id: Ibbb8000be09034203d7adffc457d3c3f8b06a5bf

1 files changed, 127 insertions, 0 deletions

diff --git a/vp8/common/x86/idct_blk_mmx.c b/vp8/common/x86/idct_blk_mmx.c
new file mode 100644
index 000000000..49cebd6f5
--- /dev/null
+++ b/vp8/common/x86/idct_blk_mmx.c
@@ -0,0 +1,127 @@
+/*
+ *  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.
+ */
+
+#include "vpx_config.h"
+#include "vp8/common/idct.h"
+#include "vp8/common/dequantize.h"
+
+extern void vp8_dequantize_b_impl_mmx(short *sq, short *dq, short *q);
+
+void vp8_dequantize_b_mmx(BLOCKD *d)
+{
+    short *sq = (short *) d->qcoeff;
+    short *dq = (short *) d->dqcoeff;
+    short *q = (short *) d->dequant;
+    vp8_dequantize_b_impl_mmx(sq, dq, q);
+}
+
+void vp8_dequant_idct_add_y_block_mmx
+            (short *q, short *dq,
+             unsigned char *dst, int stride, char *eobs)
+{
+    int i;
+
+    for (i = 0; i < 4; i++)
+    {
+        if (eobs[0] > 1)
+            vp8_dequant_idct_add_mmx (q, dq, dst, stride);
+        else if (eobs[0] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[0]*dq[0], dst, stride, dst, stride);
+            ((int *)q)[0] = 0;
+        }
+
+        if (eobs[1] > 1)
+            vp8_dequant_idct_add_mmx (q+16, dq, dst+4, stride);
+        else if (eobs[1] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[16]*dq[0], dst+4, stride,
+                                      dst+4, stride);
+            ((int *)(q+16))[0] = 0;
+        }
+
+        if (eobs[2] > 1)
+            vp8_dequant_idct_add_mmx (q+32, dq, dst+8, stride);
+        else if (eobs[2] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[32]*dq[0], dst+8, stride,
+                                      dst+8, stride);
+            ((int *)(q+32))[0] = 0;
+        }
+
+        if (eobs[3] > 1)
+            vp8_dequant_idct_add_mmx (q+48, dq, dst+12, stride);
+        else if (eobs[3] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[48]*dq[0], dst+12, stride,
+                                      dst+12, stride);
+            ((int *)(q+48))[0] = 0;
+        }
+
+        q    += 64;
+        dst  += 4*stride;
+        eobs += 4;
+    }
+}
+
+void vp8_dequant_idct_add_uv_block_mmx
+            (short *q, short *dq,
+             unsigned char *dstu, unsigned char *dstv, int stride, char *eobs)
+{
+    int i;
+
+    for (i = 0; i < 2; i++)
+    {
+        if (eobs[0] > 1)
+            vp8_dequant_idct_add_mmx (q, dq, dstu, stride);
+        else if (eobs[0] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[0]*dq[0], dstu, stride, dstu, stride);
+            ((int *)q)[0] = 0;
+        }
+
+        if (eobs[1] > 1)
+            vp8_dequant_idct_add_mmx (q+16, dq, dstu+4, stride);
+        else if (eobs[1] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[16]*dq[0], dstu+4, stride,
+                                      dstu+4, stride);
+            ((int *)(q+16))[0] = 0;
+        }
+
+        q    += 32;
+        dstu += 4*stride;
+        eobs += 2;
+    }
+
+    for (i = 0; i < 2; i++)
+    {
+        if (eobs[0] > 1)
+            vp8_dequant_idct_add_mmx (q, dq, dstv, stride);
+        else if (eobs[0] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[0]*dq[0], dstv, stride, dstv, stride);
+            ((int *)q)[0] = 0;
+        }
+
+        if (eobs[1] > 1)
+            vp8_dequant_idct_add_mmx (q+16, dq, dstv+4, stride);
+        else if (eobs[1] == 1)
+        {
+            vp8_dc_only_idct_add_mmx (q[16]*dq[0], dstv+4, stride,
+                                      dstv+4, stride);
+            ((int *)(q+16))[0] = 0;
+        }
+
+        q    += 32;
+        dstv += 4*stride;
+        eobs += 2;
+    }
+}