ffmpeg-2.8.5

git-svn-id: svn://kolibrios.org@6147 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/mips/blockdsp_msa.c

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2015 Parag Salasakar (parag.salasakar@imgtec.com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/mips/generic_macros_msa.h"
+#include "blockdsp_mips.h"
+
+static void copy_8bit_value_width8_msa(uint8_t *src, uint8_t val,
+                                       int32_t src_stride, int32_t height)
+{
+    int32_t cnt;
+    uint64_t dst0;
+    v16u8 val0;
+
+    val0 = (v16u8) __msa_fill_b(val);
+    dst0 = __msa_copy_u_d((v2i64) val0, 0);
+
+    for (cnt = (height >> 2); cnt--;) {
+        SD4(dst0, dst0, dst0, dst0, src, src_stride);
+        src += (4 * src_stride);
+    }
+}
+
+static void copy_8bit_value_width16_msa(uint8_t *src, uint8_t val,
+                                        int32_t src_stride, int32_t height)
+{
+    int32_t cnt;
+    v16u8 val0;
+
+    val0 = (v16u8) __msa_fill_b(val);
+
+    for (cnt = (height >> 3); cnt--;) {
+        ST_UB8(val0, val0, val0, val0, val0, val0, val0, val0, src, src_stride);
+        src += (8 * src_stride);
+    }
+}
+
+static void memset_zero_16width_msa(uint8_t *src, int32_t stride,
+                                    int32_t height)
+{
+    int8_t cnt;
+    v16u8 zero = { 0 };
+
+    for (cnt = (height / 2); cnt--;) {
+        ST_UB(zero, src);
+        src += stride;
+        ST_UB(zero, src);
+        src += stride;
+    }
+}
+
+void ff_fill_block16_msa(uint8_t *src, uint8_t val, int stride, int height)
+{
+    copy_8bit_value_width16_msa(src, val, stride, height);
+}
+
+void ff_fill_block8_msa(uint8_t *src, uint8_t val, int stride, int height)
+{
+    copy_8bit_value_width8_msa(src, val, stride, height);
+}
+
+void ff_clear_block_msa(int16_t *block)
+{
+    memset_zero_16width_msa((uint8_t *) block, 16, 8);
+}
+
+void ff_clear_blocks_msa(int16_t *block)
+{
+    memset_zero_16width_msa((uint8_t *) block, 16, 8 * 6);
+}