1 files changed, 82 insertions, 0 deletions
diff --git a/libavcodec/utvideodsp.c b/libavcodec/utvideodsp.c
new file mode 100644
index 0000000000..0831a6b97b
--- /dev/null
+++ b/libavcodec/utvideodsp.c
@@ -0,0 +1,82 @@
+/*
+ * 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 <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "utvideodsp.h"
+
+static void restore_rgb_planes_c(uint8_t *src_r,
+                                 uint8_t *src_g,
+                                 uint8_t *src_b,
+                                 ptrdiff_t linesize_r,
+                                 ptrdiff_t linesize_g,
+                                 ptrdiff_t linesize_b,
+                                 int width, int height)
+{
+    uint8_t r, g, b;
+    int i, j;
+
+    for (j = 0; j < height; j++) {
+        for (i = 0; i < width; i++) {
+            r = src_r[i];
+            g = src_g[i];
+            b = src_b[i];
+            src_r[i] = r + g - 0x80;
+            src_b[i] = b + g - 0x80;
+        }
+        src_r += linesize_r;
+        src_g += linesize_g;
+        src_b += linesize_b;
+    }
+}
+
+static void restore_rgb_planes10_c(uint16_t *src_r,
+                                   uint16_t *src_g,
+                                   uint16_t *src_b,
+                                   ptrdiff_t linesize_r,
+                                   ptrdiff_t linesize_g,
+                                   ptrdiff_t linesize_b,
+                                   int width, int height)
+{
+    int r, g, b;
+    int i, j;
+
+    for (j = 0; j < height; j++) {
+        for (i = 0; i < width; i++) {
+            r = src_r[i];
+            g = src_g[i];
+            b = src_b[i];
+            src_r[i] = (r + g - 0x200) & 0x3FF;
+            src_b[i] = (b + g - 0x200) & 0x3FF;
+        }
+        src_r += linesize_r;
+        src_g += linesize_g;
+        src_b += linesize_b;
+    }
+}
+
+av_cold void ff_utvideodsp_init(UTVideoDSPContext *c)
+{
+    c->restore_rgb_planes   = restore_rgb_planes_c;
+    c->restore_rgb_planes10 = restore_rgb_planes10_c;
+
+    if (ARCH_X86)
+        ff_utvideodsp_init_x86(c);
+}