diff options
Diffstat (limited to 'sound/core/oss')
| -rw-r--r-- | sound/core/oss/linear.c | 80 | ||||
| -rw-r--r-- | sound/core/oss/mulaw.c | 83 | ||||
| -rw-r--r-- | sound/core/oss/plugin_ops.h | 370 |
3 files changed, 97 insertions, 436 deletions
diff --git a/sound/core/oss/linear.c b/sound/core/oss/linear.c index a3cfe7c..41b2885 100644 --- a/sound/core/oss/linear.c +++ b/sound/core/oss/linear.c @@ -31,19 +31,34 @@ */ struct linear_priv { - int conv; + int cvt_endian; /* need endian conversion? */ + unsigned int src_ofs; /* byte offset in source format */ + unsigned int dst_ofs; /* byte soffset in destination format */ + unsigned int copy_ofs; /* byte offset in temporary u32 data */ + unsigned int dst_bytes; /* byte size of destination format */ + unsigned int copy_bytes; /* bytes to copy per conversion */ + unsigned int flip; /* MSB flip for signeness, done after endian conv */ }; +static inline void do_convert(struct linear_priv *data, + unsigned char *dst, unsigned char *src) +{ + unsigned int tmp = 0; + unsigned char *p = (unsigned char *)&tmp; + + memcpy(p + data->copy_ofs, src + data->src_ofs, data->copy_bytes); + if (data->cvt_endian) + tmp = swab32(tmp); + tmp ^= data->flip; + memcpy(dst, p + data->dst_ofs, data->dst_bytes); +} + static void convert(struct snd_pcm_plugin *plugin, const struct snd_pcm_plugin_channel *src_channels, struct snd_pcm_plugin_channel *dst_channels, snd_pcm_uframes_t frames) { -#define CONV_LABELS -#include "plugin_ops.h" -#undef CONV_LABELS struct linear_priv *data = (struct linear_priv *)plugin->extra_data; - void *conv = conv_labels[data->conv]; int channel; int nchannels = plugin->src_format.channels; for (channel = 0; channel < nchannels; ++channel) { @@ -64,11 +79,7 @@ static void convert(struct snd_pcm_plugin *plugin, dst_step = dst_channels[channel].area.step / 8; frames1 = frames; while (frames1-- > 0) { - goto *conv; -#define CONV_END after -#include "plugin_ops.h" -#undef CONV_END - after: + do_convert(data, dst, src); src += src_step; dst += dst_step; } @@ -103,29 +114,36 @@ static snd_pcm_sframes_t linear_transfer(struct snd_pcm_plugin *plugin, return frames; } -static int conv_index(int src_format, int dst_format) +static void init_data(struct linear_priv *data, int src_format, int dst_format) { - int src_endian, dst_endian, sign, src_width, dst_width; + int src_le, dst_le, src_bytes, dst_bytes; - sign = (snd_pcm_format_signed(src_format) != - snd_pcm_format_signed(dst_format)); -#ifdef SNDRV_LITTLE_ENDIAN - src_endian = snd_pcm_format_big_endian(src_format); - dst_endian = snd_pcm_format_big_endian(dst_format); -#else - src_endian = snd_pcm_format_little_endian(src_format); - dst_endian = snd_pcm_format_little_endian(dst_format); -#endif - - if (src_endian < 0) - src_endian = 0; - if (dst_endian < 0) - dst_endian = 0; + src_bytes = snd_pcm_format_width(src_format) / 8; + dst_bytes = snd_pcm_format_width(dst_format) / 8; + src_le = snd_pcm_format_little_endian(src_format) > 0; + dst_le = snd_pcm_format_little_endian(dst_format) > 0; - src_width = snd_pcm_format_width(src_format) / 8 - 1; - dst_width = snd_pcm_format_width(dst_format) / 8 - 1; - - return src_width * 32 + src_endian * 16 + sign * 8 + dst_width * 2 + dst_endian; + data->dst_bytes = dst_bytes; + data->cvt_endian = src_le != dst_le; + data->copy_bytes = src_bytes < dst_bytes ? src_bytes : dst_bytes; + if (src_le) { + data->copy_ofs = 4 - data->copy_bytes; + data->src_ofs = src_bytes - data->copy_bytes; + } else + data->src_ofs = snd_pcm_format_physical_width(src_format) / 8 - + src_bytes; + if (dst_le) + data->dst_ofs = 4 - data->dst_bytes; + else + data->dst_ofs = snd_pcm_format_physical_width(dst_format) / 8 - + dst_bytes; + if (snd_pcm_format_signed(src_format) != + snd_pcm_format_signed(dst_format)) { + if (dst_le) + data->flip = cpu_to_le32(0x80000000); + else + data->flip = cpu_to_be32(0x80000000); + } } int snd_pcm_plugin_build_linear(struct snd_pcm_substream *plug, @@ -151,7 +169,7 @@ int snd_pcm_plugin_build_linear(struct snd_pcm_substream *plug, if (err < 0) return err; data = (struct linear_priv *)plugin->extra_data; - data->conv = conv_index(src_format->format, dst_format->format); + init_data(data, src_format->format, dst_format->format); plugin->transfer = linear_transfer; *r_plugin = plugin; return 0; diff --git a/sound/core/oss/mulaw.c b/sound/core/oss/mulaw.c index 91b6242..3da3b81 100644 --- a/sound/core/oss/mulaw.c +++ b/sound/core/oss/mulaw.c @@ -146,19 +146,32 @@ typedef void (*mulaw_f)(struct snd_pcm_plugin *plugin, struct mulaw_priv { mulaw_f func; - int conv; + int cvt_endian; /* need endian conversion? */ + unsigned int native_ofs; /* byte offset in native format */ + unsigned int copy_ofs; /* byte offset in s16 format */ + unsigned int native_bytes; /* byte size of the native format */ + unsigned int copy_bytes; /* bytes to copy per conversion */ + u16 flip; /* MSB flip for signedness, done after endian conversion */ }; +static inline void cvt_s16_to_native(struct mulaw_priv *data, + unsigned char *dst, u16 sample) +{ + sample ^= data->flip; + if (data->cvt_endian) + sample = swab16(sample); + if (data->native_bytes > data->copy_bytes) + memset(dst, 0, data->native_bytes); + memcpy(dst + data->native_ofs, (char *)&sample + data->copy_ofs, + data->copy_bytes); +} + static void mulaw_decode(struct snd_pcm_plugin *plugin, const struct snd_pcm_plugin_channel *src_channels, struct snd_pcm_plugin_channel *dst_channels, snd_pcm_uframes_t frames) { -#define PUT_S16_LABELS -#include "plugin_ops.h" -#undef PUT_S16_LABELS struct mulaw_priv *data = (struct mulaw_priv *)plugin->extra_data; - void *put = put_s16_labels[data->conv]; int channel; int nchannels = plugin->src_format.channels; for (channel = 0; channel < nchannels; ++channel) { @@ -180,30 +193,33 @@ static void mulaw_decode(struct snd_pcm_plugin *plugin, frames1 = frames; while (frames1-- > 0) { signed short sample = ulaw2linear(*src); - goto *put; -#define PUT_S16_END after -#include "plugin_ops.h" -#undef PUT_S16_END - after: + cvt_s16_to_native(data, dst, sample); src += src_step; dst += dst_step; } } } +static inline signed short cvt_native_to_s16(struct mulaw_priv *data, + unsigned char *src) +{ + u16 sample = 0; + memcpy((char *)&sample + data->copy_ofs, src + data->native_ofs, + data->copy_bytes); + if (data->cvt_endian) + sample = swab16(sample); + sample ^= data->flip; + return (signed short)sample; +} + static void mulaw_encode(struct snd_pcm_plugin *plugin, const struct snd_pcm_plugin_channel *src_channels, struct snd_pcm_plugin_channel *dst_channels, snd_pcm_uframes_t frames) { -#define GET_S16_LABELS -#include "plugin_ops.h" -#undef GET_S16_LABELS struct mulaw_priv *data = (struct mulaw_priv *)plugin->extra_data; - void *get = get_s16_labels[data->conv]; int channel; int nchannels = plugin->src_format.channels; - signed short sample = 0; for (channel = 0; channel < nchannels; ++channel) { char *src; char *dst; @@ -222,11 +238,7 @@ static void mulaw_encode(struct snd_pcm_plugin *plugin, dst_step = dst_channels[channel].area.step / 8; frames1 = frames; while (frames1-- > 0) { - goto *get; -#define GET_S16_END after -#include "plugin_ops.h" -#undef GET_S16_END - after: + signed short sample = cvt_native_to_s16(data, src); *dst = linear2ulaw(sample); src += src_step; dst += dst_step; @@ -262,23 +274,25 @@ static snd_pcm_sframes_t mulaw_transfer(struct snd_pcm_plugin *plugin, return frames; } -static int getput_index(int format) +static void init_data(struct mulaw_priv *data, int format) { - int sign, width, endian; - sign = !snd_pcm_format_signed(format); - width = snd_pcm_format_width(format) / 8 - 1; - if (width < 0 || width > 3) { - snd_printk(KERN_ERR "snd-pcm-oss: invalid format %d\n", format); - width = 0; - } #ifdef SNDRV_LITTLE_ENDIAN - endian = snd_pcm_format_big_endian(format); + data->cvt_endian = snd_pcm_format_big_endian(format) > 0; #else - endian = snd_pcm_format_little_endian(format); + data->cvt_endian = snd_pcm_format_little_endian(format) > 0; #endif - if (endian < 0) - endian = 0; - return width * 4 + endian * 2 + sign; + if (!snd_pcm_format_signed(format)) + data->flip = 0x8000; + data->native_bytes = snd_pcm_format_physical_width(format) / 8; + data->copy_bytes = data->native_bytes < 2 ? 1 : 2; + if (snd_pcm_format_little_endian(format)) { + data->native_ofs = data->native_bytes - data->copy_bytes; + data->copy_ofs = 2 - data->copy_bytes; + } else { + /* S24 in 4bytes need an 1 byte offset */ + data->native_ofs = data->native_bytes - + snd_pcm_format_width(format) / 8; + } } int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug, @@ -319,8 +333,7 @@ int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug, return err; data = (struct mulaw_priv *)plugin->extra_data; data->func = func; - data->conv = getput_index(format->format); - snd_assert(data->conv >= 0 && data->conv < 4*2*2, return -EINVAL); + init_data(data, format->format); plugin->transfer = mulaw_transfer; *r_plugin = plugin; return 0; diff --git a/sound/core/oss/plugin_ops.h b/sound/core/oss/plugin_ops.h deleted file mode 100644 index 1f5bde4..0000000 --- a/sound/core/oss/plugin_ops.h +++ /dev/null @@ -1,370 +0,0 @@ -/* - * Plugin sample operators with fast switch - * Copyright (c) 2000 by Jaroslav Kysela <perex@suse.cz> - * - * - * This library is free software; you can redistribute it and/or modify - * it under the terms of the GNU Library General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program 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 Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - - -#define as_u8(ptr) (*(u_int8_t*)(ptr)) -#define as_u16(ptr) (*(u_int16_t*)(ptr)) -#define as_u32(ptr) (*(u_int32_t*)(ptr)) -#define as_u64(ptr) (*(u_int64_t*)(ptr)) -#define as_s8(ptr) (*(int8_t*)(ptr)) -#define as_s16(ptr) (*(int16_t*)(ptr)) -#define as_s32(ptr) (*(int32_t*)(ptr)) -#define as_s64(ptr) (*(int64_t*)(ptr)) - -#ifdef COPY_LABELS -static void *copy_labels[4] = { - &©_8, - &©_16, - &©_32, - &©_64 -}; -#endif - -#ifdef COPY_END -while(0) { -copy_8: as_s8(dst) = as_s8(src); goto COPY_END; -copy_16: as_s16(dst) = as_s16(src); goto COPY_END; -copy_32: as_s32(dst) = as_s32(src); goto COPY_END; -copy_64: as_s64(dst) = as_s64(src); goto COPY_END; -} -#endif - -#ifdef CONV_LABELS -/* src_wid src_endswap sign_toggle dst_wid dst_endswap */ -static void *conv_labels[4 * 2 * 2 * 4 * 2] = { - &&conv_xxx1_xxx1, /* 8h -> 8h */ - &&conv_xxx1_xxx1, /* 8h -> 8s */ - &&conv_xxx1_xx10, /* 8h -> 16h */ - &&conv_xxx1_xx01, /* 8h -> 16s */ - &&conv_xxx1_x100, /* 8h -> 24h */ - &&conv_xxx1_001x, /* 8h -> 24s */ - &&conv_xxx1_1000, /* 8h -> 32h */ - &&conv_xxx1_0001, /* 8h -> 32s */ - &&conv_xxx1_xxx9, /* 8h ^> 8h */ - &&conv_xxx1_xxx9, /* 8h ^> 8s */ - &&conv_xxx1_xx90, /* 8h ^> 16h */ - &&conv_xxx1_xx09, /* 8h ^> 16s */ - &&conv_xxx1_x900, /* 8h ^> 24h */ - &&conv_xxx1_009x, /* 8h ^> 24s */ - &&conv_xxx1_9000, /* 8h ^> 32h */ - &&conv_xxx1_0009, /* 8h ^> 32s */ - &&conv_xxx1_xxx1, /* 8s -> 8h */ - &&conv_xxx1_xxx1, /* 8s -> 8s */ - &&conv_xxx1_xx10, /* 8s -> 16h */ - &&conv_xxx1_xx01, /* 8s -> 16s */ - &&conv_xxx1_x100, /* 8s -> 24h */ - &&conv_xxx1_001x, /* 8s -> 24s */ - &&conv_xxx1_1000, /* 8s -> 32h */ - &&conv_xxx1_0001, /* 8s -> 32s */ - &&conv_xxx1_xxx9, /* 8s ^> 8h */ - &&conv_xxx1_xxx9, /* 8s ^> 8s */ - &&conv_xxx1_xx90, /* 8s ^> 16h */ - &&conv_xxx1_xx09, /* 8s ^> 16s */ - &&conv_xxx1_x900, /* 8s ^> 24h */ - &&conv_xxx1_009x, /* 8s ^> 24s */ - &&conv_xxx1_9000, /* 8s ^> 32h */ - &&conv_xxx1_0009, /* 8s ^> 32s */ - &&conv_xx12_xxx1, /* 16h -> 8h */ - &&conv_xx12_xxx1, /* 16h -> 8s */ - &&conv_xx12_xx12, /* 16h -> 16h */ - &&conv_xx12_xx21, /* 16h -> 16s */ - &&conv_xx12_x120, /* 16h -> 24h */ - &&conv_xx12_021x, /* 16h -> 24s */ - &&conv_xx12_1200, /* 16h -> 32h */ - &&conv_xx12_0021, /* 16h -> 32s */ - &&conv_xx12_xxx9, /* 16h ^> 8h */ - &&conv_xx12_xxx9, /* 16h ^> 8s */ - &&conv_xx12_xx92, /* 16h ^> 16h */ - &&conv_xx12_xx29, /* 16h ^> 16s */ - &&conv_xx12_x920, /* 16h ^> 24h */ - &&conv_xx12_029x, /* 16h ^> 24s */ - &&conv_xx12_9200, /* 16h ^> 32h */ - &&conv_xx12_0029, /* 16h ^> 32s */ - &&conv_xx12_xxx2, /* 16s -> 8h */ - &&conv_xx12_xxx2, /* 16s -> 8s */ - &&conv_xx12_xx21, /* 16s -> 16h */ - &&conv_xx12_xx12, /* 16s -> 16s */ - &&conv_xx12_x210, /* 16s -> 24h */ - &&conv_xx12_012x, /* 16s -> 24s */ - &&conv_xx12_2100, /* 16s -> 32h */ - &&conv_xx12_0012, /* 16s -> 32s */ - &&conv_xx12_xxxA, /* 16s ^> 8h */ - &&conv_xx12_xxxA, /* 16s ^> 8s */ - &&conv_xx12_xxA1, /* 16s ^> 16h */ - &&conv_xx12_xx1A, /* 16s ^> 16s */ - &&conv_xx12_xA10, /* 16s ^> 24h */ - &&conv_xx12_01Ax, /* 16s ^> 24s */ - &&conv_xx12_A100, /* 16s ^> 32h */ - &&conv_xx12_001A, /* 16s ^> 32s */ - &&conv_x123_xxx1, /* 24h -> 8h */ - &&conv_x123_xxx1, /* 24h -> 8s */ - &&conv_x123_xx12, /* 24h -> 16h */ - &&conv_x123_xx21, /* 24h -> 16s */ - &&conv_x123_x123, /* 24h -> 24h */ - &&conv_x123_321x, /* 24h -> 24s */ - &&conv_x123_1230, /* 24h -> 32h */ - &&conv_x123_0321, /* 24h -> 32s */ - &&conv_x123_xxx9, /* 24h ^> 8h */ - &&conv_x123_xxx9, /* 24h ^> 8s */ - &&conv_x123_xx92, /* 24h ^> 16h */ - &&conv_x123_xx29, /* 24h ^> 16s */ - &&conv_x123_x923, /* 24h ^> 24h */ - &&conv_x123_329x, /* 24h ^> 24s */ - &&conv_x123_9230, /* 24h ^> 32h */ - &&conv_x123_0329, /* 24h ^> 32s */ - &&conv_123x_xxx3, /* 24s -> 8h */ - &&conv_123x_xxx3, /* 24s -> 8s */ - &&conv_123x_xx32, /* 24s -> 16h */ - &&conv_123x_xx23, /* 24s -> 16s */ - &&conv_123x_x321, /* 24s -> 24h */ - &&conv_123x_123x, /* 24s -> 24s */ - &&conv_123x_3210, /* 24s -> 32h */ - &&conv_123x_0123, /* 24s -> 32s */ - &&conv_123x_xxxB, /* 24s ^> 8h */ - &&conv_123x_xxxB, /* 24s ^> 8s */ - &&conv_123x_xxB2, /* 24s ^> 16h */ - &&conv_123x_xx2B, /* 24s ^> 16s */ - &&conv_123x_xB21, /* 24s ^> 24h */ - &&conv_123x_12Bx, /* 24s ^> 24s */ - &&conv_123x_B210, /* 24s ^> 32h */ - &&conv_123x_012B, /* 24s ^> 32s */ - &&conv_1234_xxx1, /* 32h -> 8h */ - &&conv_1234_xxx1, /* 32h -> 8s */ - &&conv_1234_xx12, /* 32h -> 16h */ - &&conv_1234_xx21, /* 32h -> 16s */ - &&conv_1234_x123, /* 32h -> 24h */ - &&conv_1234_321x, /* 32h -> 24s */ - &&conv_1234_1234, /* 32h -> 32h */ - &&conv_1234_4321, /* 32h -> 32s */ - &&conv_1234_xxx9, /* 32h ^> 8h */ - &&conv_1234_xxx9, /* 32h ^> 8s */ - &&conv_1234_xx92, /* 32h ^> 16h */ - &&conv_1234_xx29, /* 32h ^> 16s */ - &&conv_1234_x923, /* 32h ^> 24h */ - &&conv_1234_329x, /* 32h ^> 24s */ - &&conv_1234_9234, /* 32h ^> 32h */ - &&conv_1234_4329, /* 32h ^> 32s */ - &&conv_1234_xxx4, /* 32s -> 8h */ - &&conv_1234_xxx4, /* 32s -> 8s */ - &&conv_1234_xx43, /* 32s -> 16h */ - &&conv_1234_xx34, /* 32s -> 16s */ - &&conv_1234_x432, /* 32s -> 24h */ - &&conv_1234_234x, /* 32s -> 24s */ - &&conv_1234_4321, /* 32s -> 32h */ - &&conv_1234_1234, /* 32s -> 32s */ - &&conv_1234_xxxC, /* 32s ^> 8h */ - &&conv_1234_xxxC, /* 32s ^> 8s */ - &&conv_1234_xxC3, /* 32s ^> 16h */ - &&conv_1234_xx3C, /* 32s ^> 16s */ - &&conv_1234_xC32, /* 32s ^> 24h */ - &&conv_1234_23Cx, /* 32s ^> 24s */ - &&conv_1234_C321, /* 32s ^> 32h */ - &&conv_1234_123C, /* 32s ^> 32s */ -}; -#endif - -#ifdef CONV_END -while(0) { -conv_xxx1_xxx1: as_u8(dst) = as_u8(src); goto CONV_END; -conv_xxx1_xx10: as_u16(dst) = (u_int16_t)as_u8(src) << 8; goto CONV_END; -conv_xxx1_xx01: as_u16(dst) = (u_int16_t)as_u8(src); goto CONV_END; -conv_xxx1_x100: as_u32(dst) = (u_int32_t)as_u8(src) << 16; goto CONV_END; -conv_xxx1_001x: as_u32(dst) = (u_int32_t)as_u8(src) << 8; goto CONV_END; -conv_xxx1_1000: as_u32(dst) = (u_int32_t)as_u8(src) << 24; goto CONV_END; -conv_xxx1_0001: as_u32(dst) = (u_int32_t)as_u8(src); goto CONV_END; -conv_xxx1_xxx9: as_u8(dst) = as_u8(src) ^ 0x80; goto CONV_END; -conv_xxx1_xx90: as_u16(dst) = (u_int16_t)(as_u8(src) ^ 0x80) << 8; goto CONV_END; -conv_xxx1_xx09: as_u16(dst) = (u_int16_t)(as_u8(src) ^ 0x80); goto CONV_END; -conv_xxx1_x900: as_u32(dst) = (u_int32_t)(as_u8(src) ^ 0x80) << 16; goto CONV_END; -conv_xxx1_009x: as_u32(dst) = (u_int32_t)(as_u8(src) ^ 0x80) << 8; goto CONV_END; -conv_xxx1_9000: as_u32(dst) = (u_int32_t)(as_u8(src) ^ 0x80) << 24; goto CONV_END; -conv_xxx1_0009: as_u32(dst) = (u_int32_t)(as_u8(src) ^ 0x80); goto CONV_END; -conv_xx12_xxx1: as_u8(dst) = as_u16(src) >> 8; goto CONV_END; -conv_xx12_xx12: as_u16(dst) = as_u16(src); goto CONV_END; -conv_xx12_xx21: as_u16(dst) = swab16(as_u16(src)); goto CONV_END; -conv_xx12_x120: as_u32(dst) = (u_int32_t)as_u16(src) << 8; goto CONV_END; -conv_xx12_021x: as_u32(dst) = (u_int32_t)swab16(as_u16(src)) << 8; goto CONV_END; -conv_xx12_1200: as_u32(dst) = (u_int32_t)as_u16(src) << 16; goto CONV_END; -conv_xx12_0021: as_u32(dst) = (u_int32_t)swab16(as_u16(src)); goto CONV_END; -conv_xx12_xxx9: as_u8(dst) = (as_u16(src) >> 8) ^ 0x80; goto CONV_END; -conv_xx12_xx92: as_u16(dst) = as_u16(src) ^ 0x8000; goto CONV_END; -conv_xx12_xx29: as_u16(dst) = swab16(as_u16(src)) ^ 0x80; goto CONV_END; -conv_xx12_x920: as_u32(dst) = (u_int32_t)(as_u16(src) ^ 0x8000) << 8; goto CONV_END; -conv_xx12_029x: as_u32(dst) = (u_int32_t)(swab16(as_u16(src)) ^ 0x80) << 8; goto CONV_END; -conv_xx12_9200: as_u32(dst) = (u_int32_t)(as_u16(src) ^ 0x8000) << 16; goto CONV_END; -conv_xx12_0029: as_u32(dst) = (u_int32_t)(swab16(as_u16(src)) ^ 0x80); goto CONV_END; -conv_xx12_xxx2: as_u8(dst) = as_u16(src) & 0xff; goto CONV_END; -conv_xx12_x210: as_u32(dst) = (u_int32_t)swab16(as_u16(src)) << 8; goto CONV_END; -conv_xx12_012x: as_u32(dst) = (u_int32_t)as_u16(src) << 8; goto CONV_END; -conv_xx12_2100: as_u32(dst) = (u_int32_t)swab16(as_u16(src)) << 16; goto CONV_END; -conv_xx12_0012: as_u32(dst) = (u_int32_t)as_u16(src); goto CONV_END; -conv_xx12_xxxA: as_u8(dst) = (as_u16(src) ^ 0x80) & 0xff; goto CONV_END; -conv_xx12_xxA1: as_u16(dst) = swab16(as_u16(src) ^ 0x80); goto CONV_END; -conv_xx12_xx1A: as_u16(dst) = as_u16(src) ^ 0x80; goto CONV_END; -conv_xx12_xA10: as_u32(dst) = (u_int32_t)swab16(as_u16(src) ^ 0x80) << 8; goto CONV_END; -conv_xx12_01Ax: as_u32(dst) = (u_int32_t)(as_u16(src) ^ 0x80) << 8; goto CONV_END; -conv_xx12_A100: as_u32(dst) = (u_int32_t)swab16(as_u16(src) ^ 0x80) << 16; goto CONV_END; -conv_xx12_001A: as_u32(dst) = (u_int32_t)(as_u16(src) ^ 0x80); goto CONV_END; -conv_x123_xxx1: as_u8(dst) = as_u32(src) >> 16; goto CONV_END; -conv_x123_xx12: as_u16(dst) = as_u32(src) >> 8; goto CONV_END; -conv_x123_xx21: as_u16(dst) = swab16(as_u32(src) >> 8); goto CONV_END; -conv_x123_x123: as_u32(dst) = as_u32(src); goto CONV_END; -conv_x123_321x: as_u32(dst) = swab32(as_u32(src)); goto CONV_END; -conv_x123_1230: as_u32(dst) = as_u32(src) << 8; goto CONV_END; -conv_x123_0321: as_u32(dst) = swab32(as_u32(src)) >> 8; goto CONV_END; -conv_x123_xxx9: as_u8(dst) = (as_u32(src) >> 16) ^ 0x80; goto CONV_END; -conv_x123_xx92: as_u16(dst) = (as_u32(src) >> 8) ^ 0x8000; goto CONV_END; -conv_x123_xx29: as_u16(dst) = swab16(as_u32(src) >> 8) ^ 0x80; goto CONV_END; -conv_x123_x923: as_u32(dst) = as_u32(src) ^ 0x800000; goto CONV_END; -conv_x123_329x: as_u32(dst) = swab32(as_u32(src)) ^ 0x8000; goto CONV_END; -conv_x123_9230: as_u32(dst) = (as_u32(src) ^ 0x800000) << 8; goto CONV_END; -conv_x123_0329: as_u32(dst) = (swab32(as_u32(src)) >> 8) ^ 0x80; goto CONV_END; -conv_123x_xxx3: as_u8(dst) = (as_u32(src) >> 8) & 0xff; goto CONV_END; -conv_123x_xx32: as_u16(dst) = swab16(as_u32(src) >> 8); goto CONV_END; -conv_123x_xx23: as_u16(dst) = (as_u32(src) >> 8) & 0xffff; goto CONV_END; -conv_123x_x321: as_u32(dst) = swab32(as_u32(src)); goto CONV_END; -conv_123x_123x: as_u32(dst) = as_u32(src); goto CONV_END; -conv_123x_3210: as_u32(dst) = swab32(as_u32(src)) << 8; goto CONV_END; -conv_123x_0123: as_u32(dst) = as_u32(src) >> 8; goto CONV_END; -conv_123x_xxxB: as_u8(dst) = ((as_u32(src) >> 8) & 0xff) ^ 0x80; goto CONV_END; -conv_123x_xxB2: as_u16(dst) = swab16((as_u32(src) >> 8) ^ 0x80); goto CONV_END; -conv_123x_xx2B: as_u16(dst) = ((as_u32(src) >> 8) & 0xffff) ^ 0x80; goto CONV_END; -conv_123x_xB21: as_u32(dst) = swab32(as_u32(src)) ^ 0x800000; goto CONV_END; -conv_123x_12Bx: as_u32(dst) = as_u32(src) ^ 0x8000; goto CONV_END; -conv_123x_B210: as_u32(dst) = swab32(as_u32(src) ^ 0x8000) << 8; goto CONV_END; -conv_123x_012B: as_u32(dst) = (as_u32(src) >> 8) ^ 0x80; goto CONV_END; -conv_1234_xxx1: as_u8(dst) = as_u32(src) >> 24; goto CONV_END; -conv_1234_xx12: as_u16(dst) = as_u32(src) >> 16; goto CONV_END; -conv_1234_xx21: as_u16(dst) = swab16(as_u32(src) >> 16); goto CONV_END; -conv_1234_x123: as_u32(dst) = as_u32(src) >> 8; goto CONV_END; -conv_1234_321x: as_u32(dst) = swab32(as_u32(src)) << 8; goto CONV_END; -conv_1234_1234: as_u32(dst) = as_u32(src); goto CONV_END; -conv_1234_4321: as_u32(dst) = swab32(as_u32(src)); goto CONV_END; -conv_1234_xxx9: as_u8(dst) = (as_u32(src) >> 24) ^ 0x80; goto CONV_END; -conv_1234_xx92: as_u16(dst) = (as_u32(src) >> 16) ^ 0x8000; goto CONV_END; -conv_1234_xx29: as_u16(dst) = swab16(as_u32(src) >> 16) ^ 0x80; goto CONV_END; -conv_1234_x923: as_u32(dst) = (as_u32(src) >> 8) ^ 0x800000; goto CONV_END; -conv_1234_329x: as_u32(dst) = (swab32(as_u32(src)) ^ 0x80) << 8; goto CONV_END; -conv_1234_9234: as_u32(dst) = as_u32(src) ^ 0x80000000; goto CONV_END; -conv_1234_4329: as_u32(dst) = swab32(as_u32(src)) ^ 0x80; goto CONV_END; -conv_1234_xxx4: as_u8(dst) = as_u32(src) & 0xff; goto CONV_END; -conv_1234_xx43: as_u16(dst) = swab16(as_u32(src)); goto CONV_END; -conv_1234_xx34: as_u16(dst) = as_u32(src) & 0xffff; goto CONV_END; -conv_1234_x432: as_u32(dst) = swab32(as_u32(src)) >> 8; goto CONV_END; -conv_1234_234x: as_u32(dst) = as_u32(src) << 8; goto CONV_END; -conv_1234_xxxC: as_u8(dst) = (as_u32(src) & 0xff) ^ 0x80; goto CONV_END; -conv_1234_xxC3: as_u16(dst) = swab16(as_u32(src) ^ 0x80); goto CONV_END; -conv_1234_xx3C: as_u16(dst) = (as_u32(src) & 0xffff) ^ 0x80; goto CONV_END; -conv_1234_xC32: as_u32(dst) = (swab32(as_u32(src)) >> 8) ^ 0x800000; goto CONV_END; -conv_1234_23Cx: as_u32(dst) = (as_u32(src) ^ 0x80) << 8; goto CONV_END; -conv_1234_C321: as_u32(dst) = swab32(as_u32(src) ^ 0x80); goto CONV_END; -conv_1234_123C: as_u32(dst) = as_u32(src) ^ 0x80; goto CONV_END; -} -#endif - -#ifdef GET_S16_LABELS -/* src_wid src_endswap unsigned */ -static void *get_s16_labels[4 * 2 * 2] = { - &&get_s16_xxx1_xx10, /* 8h -> 16h */ - &&get_s16_xxx1_xx90, /* 8h ^> 16h */ - &&get_s16_xxx1_xx10, /* 8s -> 16h */ - &&get_s16_xxx1_xx90, /* 8s ^> 16h */ - &&get_s16_xx12_xx12, /* 16h -> 16h */ - &&get_s16_xx12_xx92, /* 16h ^> 16h */ - &&get_s16_xx12_xx21, /* 16s -> 16h */ - &&get_s16_xx12_xxA1, /* 16s ^> 16h */ - &&get_s16_x123_xx12, /* 24h -> 16h */ - &&get_s16_x123_xx92, /* 24h ^> 16h */ - &&get_s16_123x_xx32, /* 24s -> 16h */ - &&get_s16_123x_xxB2, /* 24s ^> 16h */ - &&get_s16_1234_xx12, /* 32h -> 16h */ - &&get_s16_1234_xx92, /* 32h ^> 16h */ - &&get_s16_1234_xx43, /* 32s -> 16h */ - &&get_s16_1234_xxC3, /* 32s ^> 16h */ -}; -#endif - -#ifdef GET_S16_END -while(0) { -get_s16_xxx1_xx10: sample = (u_int16_t)as_u8(src) << 8; goto GET_S16_END; -get_s16_xxx1_xx90: sample = (u_int16_t)(as_u8(src) ^ 0x80) << 8; goto GET_S16_END; -get_s16_xx12_xx12: sample = as_u16(src); goto GET_S16_END; -get_s16_xx12_xx92: sample = as_u16(src) ^ 0x8000; goto GET_S16_END; -get_s16_xx12_xx21: sample = swab16(as_u16(src)); goto GET_S16_END; -get_s16_xx12_xxA1: sample = swab16(as_u16(src) ^ 0x80); goto GET_S16_END; -get_s16_x123_xx12: sample = as_u32(src) >> 8; goto GET_S16_END; -get_s16_x123_xx92: sample = (as_u32(src) >> 8) ^ 0x8000; goto GET_S16_END; -get_s16_123x_xx32: sample = swab16(as_u32(src) >> 8); goto GET_S16_END; -get_s16_123x_xxB2: sample = swab16((as_u32(src) >> 8) ^ 0x8000); goto GET_S16_END; -get_s16_1234_xx12: sample = as_u32(src) >> 16; goto GET_S16_END; -get_s16_1234_xx92: sample = (as_u32(src) >> 16) ^ 0x8000; goto GET_S16_END; -get_s16_1234_xx43: sample = swab16(as_u32(src)); goto GET_S16_END; -get_s16_1234_xxC3: sample = swab16(as_u32(src) ^ 0x80); goto GET_S16_END; -} -#endif - -#ifdef PUT_S16_LABELS -/* dst_wid dst_endswap unsigned */ -static void *put_s16_labels[4 * 2 * 2] = { - &&put_s16_xx12_xxx1, /* 16h -> 8h */ - &&put_s16_xx12_xxx9, /* 16h ^> 8h */ - &&put_s16_xx12_xxx1, /* 16h -> 8s */ - &&put_s16_xx12_xxx9, /* 16h ^> 8s */ - &&put_s16_xx12_xx12, /* 16h -> 16h */ - &&put_s16_xx12_xx92, /* 16h ^> 16h */ - &&put_s16_xx12_xx21, /* 16h -> 16s */ - &&put_s16_xx12_xx29, /* 16h ^> 16s */ - &&put_s16_xx12_x120, /* 16h -> 24h */ - &&put_s16_xx12_x920, /* 16h ^> 24h */ - &&put_s16_xx12_021x, /* 16h -> 24s */ - &&put_s16_xx12_029x, /* 16h ^> 24s */ - &&put_s16_xx12_1200, /* 16h -> 32h */ - &&put_s16_xx12_9200, /* 16h ^> 32h */ - &&put_s16_xx12_0021, /* 16h -> 32s */ - &&put_s16_xx12_0029, /* 16h ^> 32s */ -}; -#endif - -#ifdef PUT_S16_END -while (0) { -put_s16_xx12_xxx1: as_u8(dst) = sample >> 8; goto PUT_S16_END; -put_s16_xx12_xxx9: as_u8(dst) = (sample >> 8) ^ 0x80; goto PUT_S16_END; -put_s16_xx12_xx12: as_u16(dst) = sample; goto PUT_S16_END; -put_s16_xx12_xx92: as_u16(dst) = sample ^ 0x8000; goto PUT_S16_END; -put_s16_xx12_xx21: as_u16(dst) = swab16(sample); goto PUT_S16_END; -put_s16_xx12_xx29: as_u16(dst) = swab16(sample) ^ 0x80; goto PUT_S16_END; -put_s16_xx12_x120: as_u32(dst) = (u_int32_t)sample << 8; goto PUT_S16_END; -put_s16_xx12_x920: as_u32(dst) = (u_int32_t)(sample ^ 0x8000) << 8; goto PUT_S16_END; -put_s16_xx12_021x: as_u32(dst) = (u_int32_t)swab16(sample) << 8; goto PUT_S16_END; -put_s16_xx12_029x: as_u32(dst) = (u_int32_t)(swab16(sample) ^ 0x80) << 8; goto PUT_S16_END; -put_s16_xx12_1200: as_u32(dst) = (u_int32_t)sample << 16; goto PUT_S16_END; -put_s16_xx12_9200: as_u32(dst) = (u_int32_t)(sample ^ 0x8000) << 16; goto PUT_S16_END; -put_s16_xx12_0021: as_u32(dst) = (u_int32_t)swab16(sample); goto PUT_S16_END; -put_s16_xx12_0029: as_u32(dst) = (u_int32_t)swab16(sample) ^ 0x80; goto PUT_S16_END; -} -#endif - -#undef as_u8 -#undef as_u16 -#undef as_u32 -#undef as_s8 -#undef as_s16 -#undef as_s32 |
