dsputil: Split off pixel block routines into their own context

1 files changed, 47 insertions, 0 deletions

diff --git a/libavcodec/x86/pixblockdsp_init.c b/libavcodec/x86/pixblockdsp_init.c
new file mode 100644
index 0000000000..9582e0b5c2
--- /dev/null
+++ b/libavcodec/x86/pixblockdsp_init.c
@@ -0,0 +1,47 @@
+/*
+ * SIMD-optimized pixel operations
+ *
+ * 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 "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/pixblockdsp.h"
+
+void ff_get_pixels_mmx(int16_t *block, const uint8_t *pixels, int line_size);
+void ff_get_pixels_sse2(int16_t *block, const uint8_t *pixels, int line_size);
+void ff_diff_pixels_mmx(int16_t *block, const uint8_t *s1, const uint8_t *s2,
+                        int stride);
+
+av_cold void ff_pixblockdsp_init_x86(PixblockDSPContext *c,
+                                     AVCodecContext *avctx,
+                                     unsigned high_bit_depth)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        if (!high_bit_depth)
+            c->get_pixels = ff_get_pixels_mmx;
+        c->diff_pixels = ff_diff_pixels_mmx;
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        if (!high_bit_depth)
+            c->get_pixels = ff_get_pixels_sse2;
+    }
+}