1 files changed, 91 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/mips/dspr2/av1_itrans4_dspr2.c b/third_party/aom/av1/common/mips/dspr2/av1_itrans4_dspr2.c
new file mode 100644
index 000000000..0a9552376
--- /dev/null
+++ b/third_party/aom/av1/common/mips/dspr2/av1_itrans4_dspr2.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+#include <stdio.h>
+
+#include "./aom_config.h"
+#include "./av1_rtcd.h"
+#include "av1/common/common.h"
+#include "av1/common/blockd.h"
+#include "av1/common/idct.h"
+#include "aom_dsp/mips/inv_txfm_dspr2.h"
+#include "aom_dsp/txfm_common.h"
+#include "aom_ports/mem.h"
+
+#if HAVE_DSPR2
+void av1_iht4x4_16_add_dspr2(const int16_t *input, uint8_t *dest,
+                             int dest_stride, int tx_type) {
+  int i, j;
+  DECLARE_ALIGNED(32, int16_t, out[4 * 4]);
+  int16_t *outptr = out;
+  int16_t temp_in[4 * 4], temp_out[4];
+  uint32_t pos = 45;
+
+  /* bit positon for extract from acc */
+  __asm__ __volatile__("wrdsp      %[pos],     1           \n\t"
+                       :
+                       : [pos] "r"(pos));
+
+  switch (tx_type) {
+    case DCT_DCT:  // DCT in both horizontal and vertical
+      aom_idct4_rows_dspr2(input, outptr);
+      aom_idct4_columns_add_blk_dspr2(&out[0], dest, dest_stride);
+      break;
+    case ADST_DCT:  // ADST in vertical, DCT in horizontal
+      aom_idct4_rows_dspr2(input, outptr);
+
+      outptr = out;
+
+      for (i = 0; i < 4; ++i) {
+        iadst4_dspr2(outptr, temp_out);
+
+        for (j = 0; j < 4; ++j)
+          dest[j * dest_stride + i] = clip_pixel(
+              ROUND_POWER_OF_TWO(temp_out[j], 4) + dest[j * dest_stride + i]);
+
+        outptr += 4;
+      }
+      break;
+    case DCT_ADST:  // DCT in vertical, ADST in horizontal
+      for (i = 0; i < 4; ++i) {
+        iadst4_dspr2(input, outptr);
+        input += 4;
+        outptr += 4;
+      }
+
+      for (i = 0; i < 4; ++i) {
+        for (j = 0; j < 4; ++j) {
+          temp_in[i * 4 + j] = out[j * 4 + i];
+        }
+      }
+      aom_idct4_columns_add_blk_dspr2(&temp_in[0], dest, dest_stride);
+      break;
+    case ADST_ADST:  // ADST in both directions
+      for (i = 0; i < 4; ++i) {
+        iadst4_dspr2(input, outptr);
+        input += 4;
+        outptr += 4;
+      }
+
+      for (i = 0; i < 4; ++i) {
+        for (j = 0; j < 4; ++j) temp_in[j] = out[j * 4 + i];
+        iadst4_dspr2(temp_in, temp_out);
+
+        for (j = 0; j < 4; ++j)
+          dest[j * dest_stride + i] = clip_pixel(
+              ROUND_POWER_OF_TWO(temp_out[j], 4) + dest[j * dest_stride + i]);
+      }
+      break;
+    default: printf("av1_short_iht4x4_add_dspr2 : Invalid tx_type\n"); break;
+  }
+}
+#endif  // #if HAVE_DSPR2