1 files changed, 55 insertions, 0 deletions
diff --git a/libavcodec/alpha/idctdsp_alpha.c b/libavcodec/alpha/idctdsp_alpha.c
new file mode 100644
index 0000000000..73f48210cd
--- /dev/null
+++ b/libavcodec/alpha/idctdsp_alpha.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2002 Falk Hueffner <falk@debian.org>
+ *
+ * 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/attributes.h"
+#include "libavcodec/idctdsp.h"
+#include "idctdsp_alpha.h"
+#include "asm.h"
+
+void put_pixels_clamped_mvi_asm(const int16_t *block, uint8_t *pixels,
+                                int line_size);
+void add_pixels_clamped_mvi_asm(const int16_t *block, uint8_t *pixels,
+                                int line_size);
+
+void (*put_pixels_clamped_axp_p)(const int16_t *block, uint8_t *pixels,
+                                 int line_size);
+void (*add_pixels_clamped_axp_p)(const int16_t *block, uint8_t *pixels,
+                                 int line_size);
+
+av_cold void ff_idctdsp_init_alpha(IDCTDSPContext *c, AVCodecContext *avctx,
+                                   unsigned high_bit_depth)
+{
+    /* amask clears all bits that correspond to present features.  */
+    if (amask(AMASK_MVI) == 0) {
+        c->put_pixels_clamped = put_pixels_clamped_mvi_asm;
+        c->add_pixels_clamped = add_pixels_clamped_mvi_asm;
+    }
+
+    put_pixels_clamped_axp_p = c->put_pixels_clamped;
+    add_pixels_clamped_axp_p = c->add_pixels_clamped;
+
+    if (!high_bit_depth && !avctx->lowres &&
+        (avctx->idct_algo == FF_IDCT_AUTO ||
+         avctx->idct_algo == FF_IDCT_SIMPLEALPHA)) {
+        c->idct_put = ff_simple_idct_put_axp;
+        c->idct_add = ff_simple_idct_add_axp;
+        c->idct =     ff_simple_idct_axp;
+    }
+}