1 files changed, 98 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/loongarch/intrapred_lsx.c b/media/libvpx/libvpx/vpx_dsp/loongarch/intrapred_lsx.c
new file mode 100644
index 0000000000..f990211791
--- /dev/null
+++ b/media/libvpx/libvpx/vpx_dsp/loongarch/intrapred_lsx.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2021 Loongson Technology Corporation Limited
+ * Contributed by Lu Wang <wanglu@loongson.cn>
+ *
+ * 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_dsp_rtcd.h"
+#include "vpx_util/loongson_intrinsics.h"
+
+static inline void intra_predict_dc_8x8_lsx(const uint8_t *src_top,
+                                            const uint8_t *src_left,
+                                            uint8_t *dst, int32_t dst_stride) {
+  uint64_t val0, val1;
+  int32_t dst_stride_x2 = dst_stride << 1;
+  int32_t dst_stride_x3 = dst_stride_x2 + dst_stride;
+  int32_t dst_stride_x4 = dst_stride << 2;
+  __m128i store, sum_h, sum_w, sum_d;
+  __m128i src = { 0 };
+
+  val0 = *(const uint64_t *)src_top;
+  val1 = *(const uint64_t *)src_left;
+  DUP2_ARG3(__lsx_vinsgr2vr_d, src, val0, 0, src, val1, 1, src, src);
+  sum_h = __lsx_vhaddw_hu_bu(src, src);
+  sum_w = __lsx_vhaddw_wu_hu(sum_h, sum_h);
+  sum_d = __lsx_vhaddw_du_wu(sum_w, sum_w);
+  sum_w = __lsx_vpickev_w(sum_d, sum_d);
+  sum_d = __lsx_vhaddw_du_wu(sum_w, sum_w);
+  sum_w = __lsx_vsrari_w(sum_d, 4);
+  store = __lsx_vreplvei_b(sum_w, 0);
+
+  __lsx_vstelm_d(store, dst, 0, 0);
+  __lsx_vstelm_d(store, dst + dst_stride, 0, 0);
+  __lsx_vstelm_d(store, dst + dst_stride_x2, 0, 0);
+  __lsx_vstelm_d(store, dst + dst_stride_x3, 0, 0);
+  dst += dst_stride_x4;
+  __lsx_vstelm_d(store, dst, 0, 0);
+  __lsx_vstelm_d(store, dst + dst_stride, 0, 0);
+  __lsx_vstelm_d(store, dst + dst_stride_x2, 0, 0);
+  __lsx_vstelm_d(store, dst + dst_stride_x3, 0, 0);
+}
+
+static inline void intra_predict_dc_16x16_lsx(const uint8_t *src_top,
+                                              const uint8_t *src_left,
+                                              uint8_t *dst,
+                                              int32_t dst_stride) {
+  int32_t dst_stride_x2 = dst_stride << 1;
+  int32_t dst_stride_x3 = dst_stride_x2 + dst_stride;
+  int32_t dst_stride_x4 = dst_stride << 2;
+  __m128i top, left, out;
+  __m128i sum_h, sum_top, sum_left;
+  __m128i sum_w;
+  __m128i sum_d;
+
+  DUP2_ARG2(__lsx_vld, src_top, 0, src_left, 0, top, left);
+  DUP2_ARG2(__lsx_vhaddw_hu_bu, top, top, left, left, sum_top, sum_left);
+  sum_h = __lsx_vadd_h(sum_top, sum_left);
+  sum_w = __lsx_vhaddw_wu_hu(sum_h, sum_h);
+  sum_d = __lsx_vhaddw_du_wu(sum_w, sum_w);
+  sum_w = __lsx_vpickev_w(sum_d, sum_d);
+  sum_d = __lsx_vhaddw_du_wu(sum_w, sum_w);
+  sum_w = __lsx_vsrari_w(sum_d, 5);
+  out = __lsx_vreplvei_b(sum_w, 0);
+
+  __lsx_vstx(out, dst, 0);
+  __lsx_vstx(out, dst, dst_stride);
+  __lsx_vstx(out, dst, dst_stride_x2);
+  __lsx_vstx(out, dst, dst_stride_x3);
+  dst += dst_stride_x4;
+  __lsx_vstx(out, dst, 0);
+  __lsx_vstx(out, dst, dst_stride);
+  __lsx_vstx(out, dst, dst_stride_x2);
+  __lsx_vstx(out, dst, dst_stride_x3);
+  dst += dst_stride_x4;
+  __lsx_vstx(out, dst, 0);
+  __lsx_vstx(out, dst, dst_stride);
+  __lsx_vstx(out, dst, dst_stride_x2);
+  __lsx_vstx(out, dst, dst_stride_x3);
+  dst += dst_stride_x4;
+  __lsx_vstx(out, dst, 0);
+  __lsx_vstx(out, dst, dst_stride);
+  __lsx_vstx(out, dst, dst_stride_x2);
+  __lsx_vstx(out, dst, dst_stride_x3);
+}
+
+void vpx_dc_predictor_8x8_lsx(uint8_t *dst, ptrdiff_t y_stride,
+                              const uint8_t *above, const uint8_t *left) {
+  intra_predict_dc_8x8_lsx(above, left, dst, y_stride);
+}
+
+void vpx_dc_predictor_16x16_lsx(uint8_t *dst, ptrdiff_t y_stride,
+                                const uint8_t *above, const uint8_t *left) {
+  intra_predict_dc_16x16_lsx(above, left, dst, y_stride);
+}