libbpg-0.9.3

libavcodec/bit_depth_template.c

@@ -0,0 +1,98 @@
+/*
+ * 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 "mathops.h"
+#include "rnd_avg.h"
+#include "libavutil/intreadwrite.h"
+
+#ifndef BIT_DEPTH
+#define BIT_DEPTH 8
+#endif
+
+#ifdef AVCODEC_BIT_DEPTH_TEMPLATE_C
+#   undef pixel
+#   undef pixel2
+#   undef pixel4
+#   undef dctcoef
+#   undef INIT_CLIP
+#   undef no_rnd_avg_pixel4
+#   undef rnd_avg_pixel4
+#   undef AV_RN2P
+#   undef AV_RN4P
+#   undef AV_RN4PA
+#   undef AV_WN2P
+#   undef AV_WN4P
+#   undef AV_WN4PA
+#   undef CLIP
+#   undef FUNC
+#   undef FUNCC
+#   undef av_clip_pixel
+#   undef PIXEL_SPLAT_X4
+#else
+#   define AVCODEC_BIT_DEPTH_TEMPLATE_C
+#endif
+
+#if defined(USE_VAR_BIT_DEPTH) || BIT_DEPTH > 8
+#   define pixel  uint16_t
+#   define pixel2 uint32_t
+#   define pixel4 uint64_t
+#   define dctcoef int32_t
+
+#   define INIT_CLIP
+#   define no_rnd_avg_pixel4 no_rnd_avg64
+#   define    rnd_avg_pixel4    rnd_avg64
+#   define AV_RN2P  AV_RN32
+#   define AV_RN4P  AV_RN64
+#   define AV_RN4PA AV_RN64A
+#   define AV_WN2P  AV_WN32
+#   define AV_WN4P  AV_WN64
+#   define AV_WN4PA AV_WN64A
+#   define PIXEL_SPLAT_X4(x) ((x)*0x0001000100010001ULL)
+
+#   define av_clip_pixel(a) av_clip_uintp2(a, BIT_DEPTH)
+#   define CLIP(a)          av_clip_uintp2(a, BIT_DEPTH)
+#else
+#   define pixel  uint8_t
+#   define pixel2 uint16_t
+#   define pixel4 uint32_t
+#   define dctcoef int16_t
+
+#   define INIT_CLIP
+#   define no_rnd_avg_pixel4 no_rnd_avg32
+#   define    rnd_avg_pixel4    rnd_avg32
+#   define AV_RN2P  AV_RN16
+#   define AV_RN4P  AV_RN32
+#   define AV_RN4PA AV_RN32A
+#   define AV_WN2P  AV_WN16
+#   define AV_WN4P  AV_WN32
+#   define AV_WN4PA AV_WN32A
+#   define PIXEL_SPLAT_X4(x) ((x)*0x01010101U)
+
+#   define av_clip_pixel(a) av_clip_uint8(a)
+#   define CLIP(a) av_clip_uint8(a)
+#endif
+
+#define FUNC3(a, b, c)  a ## _ ## b ## c
+#define FUNC2(a, b, c)  FUNC3(a, b, c)
+#ifdef USE_VAR_BIT_DEPTH
+#define FUNC(a)  FUNC2(a, var,)
+#define FUNCC(a) FUNC2(a, var, _c)
+#else
+#define FUNC(a)  FUNC2(a, BIT_DEPTH,)
+#define FUNCC(a) FUNC2(a, BIT_DEPTH, _c)
+#endif