dsputil: Split clear_block*/fill_block* off into a separate context

1 files changed, 52 insertions, 0 deletions

diff --git a/libavcodec/blockdsp.h b/libavcodec/blockdsp.h
new file mode 100644
index 0000000000..32c671cf5a
--- /dev/null
+++ b/libavcodec/blockdsp.h
@@ -0,0 +1,52 @@
+/*
+ * 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
+ */
+
+#ifndef AVCODEC_BLOCKDSP_H
+#define AVCODEC_BLOCKDSP_H
+
+#include <stdint.h>
+
+#include "avcodec.h"
+#include "version.h"
+
+/* add and put pixel (decoding)
+ * Block sizes for op_pixels_func are 8x4,8x8 16x8 16x16.
+ * h for op_pixels_func is limited to { width / 2, width },
+ * but never larger than 16 and never smaller than 4. */
+typedef void (*op_fill_func)(uint8_t *block /* align width (8 or 16) */,
+                             uint8_t value, int line_size, int h);
+
+typedef struct BlockDSPContext {
+    void (*clear_block)(int16_t *block /* align 16 */);
+    void (*clear_blocks)(int16_t *blocks /* align 16 */);
+
+    op_fill_func fill_block_tab[2];
+} BlockDSPContext;
+
+void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx);
+
+void ff_blockdsp_init_arm(BlockDSPContext *c, unsigned high_bit_depth);
+void ff_blockdsp_init_ppc(BlockDSPContext *c, unsigned high_bit_depth);
+#if FF_API_XVMC
+void ff_blockdsp_init_x86(BlockDSPContext *c, unsigned high_bit_depth,
+                          AVCodecContext *avctx);
+#else
+void ff_blockdsp_init_x86(BlockDSPContext *c, unsigned high_bit_depth);
+#endif /* FF_API_XVMC */
+
+#endif /* AVCODEC_BLOCKDSP_H */