prores: idct sse2/sse4 optimizations.

~3.0-3.5x as fast as original C version, 1.6x as fast overall.

1 files changed, 54 insertions, 0 deletions

diff --git a/libavcodec/x86/proresdsp-init.c b/libavcodec/x86/proresdsp-init.c
new file mode 100644
index 0000000000..9760105ab6
--- /dev/null
+++ b/libavcodec/x86/proresdsp-init.c
@@ -0,0 +1,54 @@
+/*
+ * Apple ProRes compatible decoder
+ *
+ * Copyright (c) 2010-2011 Maxim Poliakovski
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavcodec/proresdsp.h"
+
+void ff_prores_idct_put_10_sse2(uint16_t *dst, int linesize,
+                                DCTELEM *block);
+void ff_prores_idct_put_10_sse4(uint16_t *dst, int linesize,
+                                DCTELEM *block);
+void ff_prores_idct_put_10_avx (uint16_t *dst, int linesize,
+                                DCTELEM *block);
+
+void ff_proresdsp_x86_init(ProresDSPContext *dsp)
+{
+#if ARCH_X86_64
+    int flags = av_get_cpu_flags();
+
+    if (flags & AV_CPU_FLAG_SSE2) {
+        dsp->idct_permutation_type = FF_TRANSPOSE_IDCT_PERM;
+        dsp->idct_put = ff_prores_idct_put_10_sse2;
+    }
+
+    if (flags & AV_CPU_FLAG_SSE4) {
+        dsp->idct_permutation_type = FF_TRANSPOSE_IDCT_PERM;
+        dsp->idct_put = ff_prores_idct_put_10_sse4;
+    }
+
+#if HAVE_AVX
+    if (flags & AV_CPU_FLAG_AVX) {
+        dsp->idct_permutation_type = FF_TRANSPOSE_IDCT_PERM;
+        dsp->idct_put = ff_prores_idct_put_10_avx;
+    }
+#endif
+#endif
+}