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NEF multiversion expanded
mod nef {
use std::f32::NAN;
use crate::decoders::*;
use crate::decoders::tiff::*;
use crate::decoders::basics::*;
use crate::decoders::ljpeg::huffman::*;
const NIKON_TREE: [[[u8; 16]; 3]; 6] = [
[
[0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 2, 0, 0, 0, 0, 0],
[5, 4, 3, 6, 2, 7, 1, 0, 8, 9, 11, 10, 12, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
],
[
[0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 2, 0, 0, 0, 0, 0],
[6, 5, 5, 5, 5, 5, 4, 3, 2, 1, 0, 11, 12, 12, 0, 0],
[3, 5, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
],
[
[0, 0, 1, 4, 2, 3, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0],
[5, 4, 6, 3, 7, 2, 8, 1, 9, 0, 10, 11, 12, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
],
[
[0, 0, 1, 4, 3, 1, 1, 1, 1, 1, 2, 0, 0, 0, 0, 0],
[5, 6, 4, 7, 8, 3, 9, 2, 1, 0, 10, 11, 12, 13, 14, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
],
[
[0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 1, 2, 0, 0, 0, 0],
[8, 7, 7, 7, 7, 7, 6, 5, 4, 3, 2, 1, 0, 13, 14, 0],
[0, 5, 4, 3, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
],
[
[0, 0, 1, 4, 2, 2, 3, 1, 2, 0, 0, 0, 0, 0, 0, 0],
[7, 6, 8, 5, 9, 4, 10, 3, 11, 12, 2, 0, 1, 13, 14, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
],
];
const WB_SERIALMAP: [u8; 256] = [
0xc1, 0xbf, 0x6d, 0x0d, 0x59, 0xc5, 0x13, 0x9d, 0x83, 0x61, 0x6b, 0x4f, 0xc7, 0x7f, 0x3d,
0x3d, 0x53, 0x59, 0xe3, 0xc7, 0xe9, 0x2f, 0x95, 0xa7, 0x95, 0x1f, 0xdf, 0x7f, 0x2b, 0x29,
0xc7, 0x0d, 0xdf, 0x07, 0xef, 0x71, 0x89, 0x3d, 0x13, 0x3d, 0x3b, 0x13, 0xfb, 0x0d, 0x89,
0xc1, 0x65, 0x1f, 0xb3, 0x0d, 0x6b, 0x29, 0xe3, 0xfb, 0xef, 0xa3, 0x6b, 0x47, 0x7f, 0x95,
0x35, 0xa7, 0x47, 0x4f, 0xc7, 0xf1, 0x59, 0x95, 0x35, 0x11, 0x29, 0x61, 0xf1, 0x3d, 0xb3,
0x2b, 0x0d, 0x43, 0x89, 0xc1, 0x9d, 0x9d, 0x89, 0x65, 0xf1, 0xe9, 0xdf, 0xbf, 0x3d, 0x7f,
0x53, 0x97, 0xe5, 0xe9, 0x95, 0x17, 0x1d, 0x3d, 0x8b, 0xfb, 0xc7, 0xe3, 0x67, 0xa7, 0x07,
0xf1, 0x71, 0xa7, 0x53, 0xb5, 0x29, 0x89, 0xe5, 0x2b, 0xa7, 0x17, 0x29, 0xe9, 0x4f, 0xc5,
0x65, 0x6d, 0x6b, 0xef, 0x0d, 0x89, 0x49, 0x2f, 0xb3, 0x43, 0x53, 0x65, 0x1d, 0x49, 0xa3,
0x13, 0x89, 0x59, 0xef, 0x6b, 0xef, 0x65, 0x1d, 0x0b, 0x59, 0x13, 0xe3, 0x4f, 0x9d, 0xb3,
0x29, 0x43, 0x2b, 0x07, 0x1d, 0x95, 0x59, 0x59, 0x47, 0xfb, 0xe5, 0xe9, 0x61, 0x47, 0x2f,
0x35, 0x7f, 0x17, 0x7f, 0xef, 0x7f, 0x95, 0x95, 0x71, 0xd3, 0xa3, 0x0b, 0x71, 0xa3, 0xad,
0x0b, 0x3b, 0xb5, 0xfb, 0xa3, 0xbf, 0x4f, 0x83, 0x1d, 0xad, 0xe9, 0x2f, 0x71, 0x65, 0xa3,
0xe5, 0x07, 0x35, 0x3d, 0x0d, 0xb5, 0xe9, 0xe5, 0x47, 0x3b, 0x9d, 0xef, 0x35, 0xa3, 0xbf,
0xb3, 0xdf, 0x53, 0xd3, 0x97, 0x53, 0x49, 0x71, 0x07, 0x35, 0x61, 0x71, 0x2f, 0x43, 0x2f,
0x11, 0xdf, 0x17, 0x97, 0xfb, 0x95, 0x3b, 0x7f, 0x6b, 0xd3, 0x25, 0xbf, 0xad, 0xc7, 0xc5,
0xc5, 0xb5, 0x8b, 0xef, 0x2f, 0xd3, 0x07, 0x6b, 0x25, 0x49, 0x95, 0x25, 0x49, 0x6d, 0x71,
0xc7,
];
const WB_KEYMAP: [u8; 256] = [
0xa7, 0xbc, 0xc9, 0xad, 0x91, 0xdf, 0x85, 0xe5, 0xd4, 0x78, 0xd5, 0x17, 0x46, 0x7c, 0x29,
0x4c, 0x4d, 0x03, 0xe9, 0x25, 0x68, 0x11, 0x86, 0xb3, 0xbd, 0xf7, 0x6f, 0x61, 0x22, 0xa2,
0x26, 0x34, 0x2a, 0xbe, 0x1e, 0x46, 0x14, 0x68, 0x9d, 0x44, 0x18, 0xc2, 0x40, 0xf4, 0x7e,
0x5f, 0x1b, 0xad, 0x0b, 0x94, 0xb6, 0x67, 0xb4, 0x0b, 0xe1, 0xea, 0x95, 0x9c, 0x66, 0xdc,
0xe7, 0x5d, 0x6c, 0x05, 0xda, 0xd5, 0xdf, 0x7a, 0xef, 0xf6, 0xdb, 0x1f, 0x82, 0x4c, 0xc0,
0x68, 0x47, 0xa1, 0xbd, 0xee, 0x39, 0x50, 0x56, 0x4a, 0xdd, 0xdf, 0xa5, 0xf8, 0xc6, 0xda,
0xca, 0x90, 0xca, 0x01, 0x42, 0x9d, 0x8b, 0x0c, 0x73, 0x43, 0x75, 0x05, 0x94, 0xde, 0x24,
0xb3, 0x80, 0x34, 0xe5, 0x2c, 0xdc, 0x9b, 0x3f, 0xca, 0x33, 0x45, 0xd0, 0xdb, 0x5f, 0xf5,
0x52, 0xc3, 0x21, 0xda, 0xe2, 0x22, 0x72, 0x6b, 0x3e, 0xd0, 0x5b, 0xa8, 0x87, 0x8c, 0x06,
0x5d, 0x0f, 0xdd, 0x09, 0x19, 0x93, 0xd0, 0xb9, 0xfc, 0x8b, 0x0f, 0x84, 0x60, 0x33, 0x1c,
0x9b, 0x45, 0xf1, 0xf0, 0xa3, 0x94, 0x3a, 0x12, 0x77, 0x33, 0x4d, 0x44, 0x78, 0x28, 0x3c,
0x9e, 0xfd, 0x65, 0x57, 0x16, 0x94, 0x6b, 0xfb, 0x59, 0xd0, 0xc8, 0x22, 0x36, 0xdb, 0xd2,
0x63, 0x98, 0x43, 0xa1, 0x04, 0x87, 0x86, 0xf7, 0xa6, 0x26, 0xbb, 0xd6, 0x59, 0x4d, 0xbf,
0x6a, 0x2e, 0xaa, 0x2b, 0xef, 0xe6, 0x78, 0xb6, 0x4e, 0xe0, 0x2f, 0xdc, 0x7c, 0xbe, 0x57,
0x19, 0x32, 0x7e, 0x2a, 0xd0, 0xb8, 0xba, 0x29, 0x00, 0x3c, 0x52, 0x7d, 0xa8, 0x49, 0x3b,
0x2d, 0xeb, 0x25, 0x49, 0xfa, 0xa3, 0xaa, 0x39, 0xa7, 0xc5, 0xa7, 0x50, 0x11, 0x36, 0xfb,
0xc6, 0x67, 0x4a, 0xf5, 0xa5, 0x12, 0x65, 0x7e, 0xb0, 0xdf, 0xaf, 0x4e, 0xb3, 0x61, 0x7f,
0x2f,
];
pub struct NefDecoder<'a> {
buffer: &'a [u8],
rawloader: &'a RawLoader,
tiff: TiffIFD<'a>,
}
#[automatically_derived]
#[allow(unused_qualifications)]
impl<'a> ::core::fmt::Debug for NefDecoder<'a> {
fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
match *self {
NefDecoder {
buffer: ref __self_0_0,
rawloader: ref __self_0_1,
tiff: ref __self_0_2,
} => {
let mut debug_trait_builder = f.debug_struct("NefDecoder");
let _ = debug_trait_builder.field("buffer", &&(*__self_0_0));
let _ = debug_trait_builder.field("rawloader", &&(*__self_0_1));
let _ = debug_trait_builder.field("tiff", &&(*__self_0_2));
debug_trait_builder.finish()
}
}
}
}
#[automatically_derived]
#[allow(unused_qualifications)]
impl<'a> ::core::clone::Clone for NefDecoder<'a> {
#[inline]
fn clone(&self) -> NefDecoder<'a> {
match *self {
NefDecoder {
buffer: ref __self_0_0,
rawloader: ref __self_0_1,
tiff: ref __self_0_2,
} => NefDecoder {
buffer: ::core::clone::Clone::clone(&(*__self_0_0)),
rawloader: ::core::clone::Clone::clone(&(*__self_0_1)),
tiff: ::core::clone::Clone::clone(&(*__self_0_2)),
},
}
}
}
impl<'a> NefDecoder<'a> {
pub fn new(buf: &'a [u8], tiff: TiffIFD<'a>, rawloader: &'a RawLoader) -> NefDecoder<'a> {
NefDecoder {
buffer: buf,
tiff: tiff,
rawloader: rawloader,
}
}
}
impl<'a> Decoder for NefDecoder<'a> {
fn image(&self, dummy: bool) -> Result<RawImage, String> {
let raw = (&self.tiff).find_first_ifd(Tag::CFAPattern).ok_or(
{
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["Couldn\'t find ifd with tag "],
&match (&"Tag::CFAPattern",) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string(),
)?;
let mut width = raw
.find_entry(Tag::ImageWidth)
.ok_or(
{
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["Couldn\'t find tag "],
&match (&"Tag::ImageWidth",) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string(),
)?
.get_usize(0);
let height = raw
.find_entry(Tag::ImageLength)
.ok_or(
{
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["Couldn\'t find tag "],
&match (&"Tag::ImageLength",) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string(),
)?
.get_usize(0);
let bps = raw
.find_entry(Tag::BitsPerSample)
.ok_or(
{
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["Couldn\'t find tag "],
&match (&"Tag::BitsPerSample",) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string(),
)?
.get_usize(0);
let compression = raw
.find_entry(Tag::Compression)
.ok_or(
{
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["Couldn\'t find tag "],
&match (&"Tag::Compression",) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string(),
)?
.get_usize(0);
let mode = {
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["", "bit"],
&match (&bps,) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string();
let camera = self
.rawloader
.check_supported_with_mode(&self.tiff, &mode)?;
let offset = raw
.find_entry(Tag::StripOffsets)
.ok_or(
{
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["Couldn\'t find tag "],
&match (&"Tag::StripOffsets",) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string(),
)?
.get_usize(0);
let size = raw
.find_entry(Tag::StripByteCounts)
.ok_or(
{
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["Couldn\'t find tag "],
&match (&"Tag::StripByteCounts",) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string(),
)?
.get_usize(0);
let src = &self.buffer[offset..];
let mut cpp = 1;
let coeffs = self.get_wb()?;
let image = if camera.model == "NIKON D100" {
width = 3040;
decode_12be_wcontrol(src, width, height, dummy)
} else {
if compression == 1 || size == width * height * bps / 8 {
match bps {
14 => {
if self.tiff.little_endian() {
decode_14le_unpacked(src, width, height, dummy)
} else {
decode_14be_unpacked(src, width, height, dummy)
}
}
12 => {
if self.tiff.little_endian() {
decode_12le(src, width, height, dummy)
} else {
decode_12be(src, width, height, dummy)
}
}
x => {
return Err({
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["Don\'t know uncompressed bps "],
&match (&x,) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string())
}
}
} else if size == width * height * 3 {
cpp = 3;
Self::decode_snef_compressed(src, coeffs, width, height, dummy)
} else if compression == 34713 {
self.decode_compressed(src, width, height, bps, dummy)?
} else {
return Err({
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["NEF: Don\'t know compression "],
&match (&compression,) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string());
}
};
let mut img = RawImage::new(camera, width, height, coeffs, image, false);
if cpp == 3 {
img.cpp = 3;
img.blacklevels = [0, 0, 0, 0];
img.whitelevels = [65535, 65535, 65535, 65535];
}
Ok(img)
}
}
impl<'a> NefDecoder<'a> {
fn get_wb(&self) -> Result<[f32; 4], String> {
if let Some(levels) = self.tiff.find_entry(Tag::NefWB0) {
Ok([levels.get_f32(0), 1.0, levels.get_f32(1), NAN])
} else if let Some(levels) = self.tiff.find_entry(Tag::NefWB1) {
let mut version: u32 = 0;
for i in 0..4 {
version = (version << 4) + (levels.get_data()[i] - b'0') as u32;
}
match version {
0x100 => Ok([
levels.get_force_u16(36) as f32,
levels.get_force_u16(38) as f32,
levels.get_force_u16(37) as f32,
NAN,
]),
0x103 => Ok([
levels.get_force_u16(10) as f32,
levels.get_force_u16(11) as f32,
levels.get_force_u16(12) as f32,
NAN,
]),
0x204 | 0x205 => {
let serial = self.tiff.find_entry(Tag::NefSerial).ok_or(
{
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["Couldn\'t find tag "],
&match (&"Tag::NefSerial",) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string(),
)?;
let data = serial.get_data();
let mut serialno = 0 as usize;
for i in 0..serial.count() {
if data[i] == 0 {
break;
}
serialno = serialno * 10
+ if data[i] >= 48 && data[i] <= 57 {
(data[i] - 48) as usize
} else {
(data[i] % 10) as usize
};
}
let keydata = self
.tiff
.find_entry(Tag::NefKey)
.ok_or(
{
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["Couldn\'t find tag "],
&match (&"Tag::NefKey",) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string(),
)?
.get_data();
let keyno = (keydata[0] ^ keydata[1] ^ keydata[2] ^ keydata[3]) as usize;
let src = if version == 0x204 {
&levels.get_data()[284..]
} else {
&levels.get_data()[4..]
};
let ci = WB_SERIALMAP[serialno & 0xff] as u32;
let mut cj = WB_KEYMAP[keyno & 0xff] as u32;
let mut ck = 0x60 as u32;
let mut buf = [0 as u8; 280];
for i in 0..280 {
cj += ci * ck;
ck += 1;
buf[i] = src[i] ^ (cj as u8);
}
let off = if version == 0x204 { 6 } else { 14 };
Ok([
BEu16(&buf, off) as f32,
BEu16(&buf, off + 2) as f32,
BEu16(&buf, off + 6) as f32,
NAN,
])
}
x => Err({
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["NEF: Don\'t know about WB version 0x"],
&match (&x,) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::LowerHex::fmt,
)],
},
));
res
}
.to_string()),
}
} else {
Err("NEF: Don't know how to fetch WB".to_string())
}
}
fn create_hufftable(num: usize) -> Result<HuffTable, String> {
let mut htable = HuffTable::empty();
for i in 0..15 {
htable.bits[i] = NIKON_TREE[num][0][i] as u32;
htable.huffval[i] = NIKON_TREE[num][1][i] as u32;
htable.shiftval[i] = NIKON_TREE[num][2][i] as u32;
}
htable.initialize()?;
Ok(htable)
}
fn decode_compressed(
&self,
src: &[u8],
width: usize,
height: usize,
bps: usize,
dummy: bool,
) -> Result<Vec<u16>, String> {
let metaifd = self.tiff.find_first_ifd(Tag::NefMeta1).ok_or(
{
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["Couldn\'t find ifd with tag "],
&match (&"Tag::NefMeta1",) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string(),
)?;
let meta = if let Some(meta) = metaifd.find_entry(Tag::NefMeta2) {
meta
} else {
metaifd.find_entry(Tag::NefMeta1).ok_or(
{
let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
&["Couldn\'t find tag "],
&match (&"Tag::NefMeta1",) {
(arg0,) => [::core::fmt::ArgumentV1::new(
arg0,
::core::fmt::Display::fmt,
)],
},
));
res
}
.to_string(),
)?
};
Self::do_decode(
src,
meta.get_data(),
metaifd.get_endian(),
width,
height,
bps,
dummy,
)
}
#[inline(always)]
#[doc(hidden)]
#[cfg(any(target_arch = "x86_64"))]
pub(crate) fn __do_decode_avx_avx2_bmi1_bmi2_fma_lzcnt_xsave_static_dispatch(
src: &[u8],
meta: &[u8],
endian: Endian,
width: usize,
height: usize,
bps: usize,
dummy: bool,
) -> Result<Vec<u16>, String> {
unsafe {
Self::do_decode_avx_avx2_bmi1_bmi2_fma_lzcnt_xsave_version(
src, meta, endian, width, height, bps, dummy,
)
}
}
#[cfg(any(target_arch = "x86_64"))]
#[target_feature(enable = "avx")]
#[target_feature(enable = "avx2")]
#[target_feature(enable = "bmi1")]
#[target_feature(enable = "bmi2")]
#[target_feature(enable = "fma")]
#[target_feature(enable = "lzcnt")]
#[target_feature(enable = "xsave")]
#[inline]
#[doc(hidden)]
pub(crate) unsafe fn do_decode_avx_avx2_bmi1_bmi2_fma_lzcnt_xsave_version(
src: &[u8],
meta: &[u8],
endian: Endian,
width: usize,
height: usize,
bps: usize,
dummy: bool,
) -> Result<Vec<u16>, String> {
Self::__safe_inner_do_decode_avx_avx2_bmi1_bmi2_fma_lzcnt_xsave_version(
src, meta, endian, width, height, bps, dummy,
)
}
#[cfg(any(target_arch = "x86_64"))]
#[inline(always)]
fn __safe_inner_do_decode_avx_avx2_bmi1_bmi2_fma_lzcnt_xsave_version(
src: &[u8],
meta: &[u8],
endian: Endian,
width: usize,
height: usize,
bps: usize,
dummy: bool,
) -> Result<Vec<u16>, String> {
let mut out = {
let out = {
if width * height > 500000000 || width > 50000 || height > 50000 {
{
:: std :: rt :: begin_panic ("rawloader: surely there's no such thing as a >500MP or >50000 px wide/tall image!")
};
}
if dummy {
<[_]>::into_vec(box [0])
} else {
::alloc::vec::from_elem(0, width * height)
}
};
if dummy {
return Ok(out);
}
out
};
let mut stream = ByteStream::new(meta, endian);
let v0 = stream.get_u8();
let v1 = stream.get_u8();
let mut huff_select = 0;
if v0 == 73 || v1 == 88 {
stream.consume_bytes(2110);
}
if v0 == 70 {
huff_select = 2;
}
if bps == 14 {
huff_select += 3;
}
let mut htable = Self::create_hufftable(huff_select)?;
let mut pred_up1: [i32; 2] = [stream.get_u16() as i32, stream.get_u16() as i32];
let mut pred_up2: [i32; 2] = [stream.get_u16() as i32, stream.get_u16() as i32];
let mut points = [0 as u16; 1 << 16];
for i in 0..points.len() {
points[i] = i as u16;
}
let mut max = 1 << bps;
let csize = stream.get_u16() as usize;
let mut split = 0 as usize;
let step = if csize > 1 { max / (csize - 1) } else { 0 };
if v0 == 68 && v1 == 32 && step > 0 {
for i in 0..csize {
points[i * step] = stream.get_u16();
}
for i in 0..max {
points[i] = ((points[i - i % step] as usize * (step - i % step)
+ points[i - i % step + step] as usize * (i % step))
/ step) as u16;
}
split = endian.ru16(meta, 562) as usize;
} else if v0 != 70 && csize <= 0x4001 {
for i in 0..csize {
points[i] = stream.get_u16();
}
max = csize;
}
let curve = LookupTable::new(&points[0..max]);
let mut pump = BitPumpMSB::new(src);
let mut random = pump.peek_bits(24);
let bps: u32 = bps as u32;
for row in 0..height {
if split > 0 && row == split {
htable = Self::create_hufftable(huff_select + 1)?;
}
pred_up1[row & 1] += htable.huff_decode(&mut pump)?;
pred_up2[row & 1] += htable.huff_decode(&mut pump)?;
let mut pred_left1 = pred_up1[row & 1];
let mut pred_left2 = pred_up2[row & 1];
for col in (0..width).step_by(2) {
if col > 0 {
pred_left1 += htable.huff_decode(&mut pump)?;
pred_left2 += htable.huff_decode(&mut pump)?;
}
out[row * width + col + 0] =
curve.dither(clampbits(pred_left1, bps), &mut random);
out[row * width + col + 1] =
curve.dither(clampbits(pred_left2, bps), &mut random);
}
}
Ok(out)
}
#[inline(always)]
#[doc(hidden)]
#[cfg(not(any()))]
pub(crate) fn do_decode_default_version(
src: &[u8],
meta: &[u8],
endian: Endian,
width: usize,
height: usize,
bps: usize,
dummy: bool,
) -> Result<Vec<u16>, String> {
let mut out = {
let out = {
if width * height > 500000000 || width > 50000 || height > 50000 {
{
:: std :: rt :: begin_panic ("rawloader: surely there's no such thing as a >500MP or >50000 px wide/tall image!")
};
}
if dummy {
<[_]>::into_vec(box [0])
} else {
::alloc::vec::from_elem(0, width * height)
}
};
if dummy {
return Ok(out);
}
out
};
let mut stream = ByteStream::new(meta, endian);
let v0 = stream.get_u8();
let v1 = stream.get_u8();
let mut huff_select = 0;
if v0 == 73 || v1 == 88 {
stream.consume_bytes(2110);
}
if v0 == 70 {
huff_select = 2;
}
if bps == 14 {
huff_select += 3;
}
let mut htable = Self::create_hufftable(huff_select)?;
let mut pred_up1: [i32; 2] = [stream.get_u16() as i32, stream.get_u16() as i32];
let mut pred_up2: [i32; 2] = [stream.get_u16() as i32, stream.get_u16() as i32];
let mut points = [0 as u16; 1 << 16];
for i in 0..points.len() {
points[i] = i as u16;
}
let mut max = 1 << bps;
let csize = stream.get_u16() as usize;
let mut split = 0 as usize;
let step = if csize > 1 { max / (csize - 1) } else { 0 };
if v0 == 68 && v1 == 32 && step > 0 {
for i in 0..csize {
points[i * step] = stream.get_u16();
}
for i in 0..max {
points[i] = ((points[i - i % step] as usize * (step - i % step)
+ points[i - i % step + step] as usize * (i % step))
/ step) as u16;
}
split = endian.ru16(meta, 562) as usize;
} else if v0 != 70 && csize <= 0x4001 {
for i in 0..csize {
points[i] = stream.get_u16();
}
max = csize;
}
let curve = LookupTable::new(&points[0..max]);
let mut pump = BitPumpMSB::new(src);
let mut random = pump.peek_bits(24);
let bps: u32 = bps as u32;
for row in 0..height {
if split > 0 && row == split {
htable = Self::create_hufftable(huff_select + 1)?;
}
pred_up1[row & 1] += htable.huff_decode(&mut pump)?;
pred_up2[row & 1] += htable.huff_decode(&mut pump)?;
let mut pred_left1 = pred_up1[row & 1];
let mut pred_left2 = pred_up2[row & 1];
for col in (0..width).step_by(2) {
if col > 0 {
pred_left1 += htable.huff_decode(&mut pump)?;
pred_left2 += htable.huff_decode(&mut pump)?;
}
out[row * width + col + 0] =
curve.dither(clampbits(pred_left1, bps), &mut random);
out[row * width + col + 1] =
curve.dither(clampbits(pred_left2, bps), &mut random);
}
}
Ok(out)
}
pub(crate) fn do_decode(
src: &[u8],
meta: &[u8],
endian: Endian,
width: usize,
height: usize,
bps: usize,
dummy: bool,
) -> Result<Vec<u16>, String> {
#[cfg(any(target_arch = "x86_64"))]
{[cfg (any (target_arch = "x86_64"))] { if {
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{[cfg (any (target_arch = "x86" , target_arch = "x86_64"))] { ::std::detect::__is_feature_detected::avx()
}
} && {
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{[cfg (any (target_arch = "x86" , target_arch = "x86_64"))] { ::std::detect::__is_feature_detected::avx2()
}
} && {
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{[cfg (any (target_arch = "x86" , target_arch = "x86_64"))] { ::std::detect::__is_feature_detected::bmi1()
}
} && {
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{[cfg (any (target_arch = "x86" , target_arch = "x86_64"))] { ::std::detect::__is_feature_detected::bmi2()
}
} && {
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{[cfg (any (target_arch = "x86" , target_arch = "x86_64"))] { ::std::detect::__is_feature_detected::fma()
}
} && {
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{[cfg (any (target_arch = "x86" , target_arch = "x86_64"))] { ::std::detect::__is_feature_detected::lzcnt()
}
} && {
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
{[cfg (any (target_arch = "x86" , target_arch = "x86_64"))] { ::std::detect::__is_feature_detected::xsave()
}
} {
return Self::__do_decode_avx_avx2_bmi1_bmi2_fma_lzcnt_xsave_static_dispatch(
src, meta, endian, width, height, bps, dummy,
);
}
}
Self::do_decode_default_version(src, meta, endian, width, height, bps, dummy)
}
pub(crate) fn decode_snef_compressed(
src: &[u8],
coeffs: [f32; 4],
width: usize,
height: usize,
dummy: bool,
) -> Vec<u16> {
let inv_wb_r = (1024.0 / coeffs[0]) as i32;
let inv_wb_b = (1024.0 / coeffs[2]) as i32;
let snef_curve = {
let g: f32 = 2.4;
let f: f32 = 0.055;
let min: f32 = 0.04045;
let mul: f32 = 12.92;
let curve = (0..4096)
.map(|i| {
let v = (i as f32) / 4095.0;
let res = if v <= min {
v / mul
} else {
((v + f) / (1.0 + f)).powf(g)
};
clampbits((res * 65535.0 * 4.0) as i32, 16)
})
.collect::<Vec<u16>>();
LookupTable::new(&curve)
};
decode_threaded(
width * 3,
height,
dummy,
&(|out: &mut [u16], row| {
let inb = &src[row * width * 3..];
let mut random = BEu32(inb, 0);
for (o, i) in out.chunks_exact_mut(6).zip(inb.chunks_exact(6)) {
let g1: u16 = i[0] as u16;
let g2: u16 = i[1] as u16;
let g3: u16 = i[2] as u16;
let g4: u16 = i[3] as u16;
let g5: u16 = i[4] as u16;
let g6: u16 = i[5] as u16;
let y1 = (g1 | ((g2 & 0x0f) << 8)) as f32;
let y2 = ((g2 >> 4) | (g3 << 4)) as f32;
let cb = (g4 | ((g5 & 0x0f) << 8)) as f32 - 2048.0;
let cr = ((g5 >> 4) | (g6 << 4)) as f32 - 2048.0;
let r = snef_curve
.dither(clampbits((y1 + 1.370705 * cr) as i32, 12), &mut random);
let g = snef_curve.dither(
clampbits((y1 - 0.337633 * cb - 0.698001 * cr) as i32, 12),
&mut random,
);
let b = snef_curve
.dither(clampbits((y1 + 1.732446 * cb) as i32, 12), &mut random);
o[0] = clampbits((inv_wb_r * r as i32 + (1 << 9)) >> 10, 15);
o[1] = g;
o[2] = clampbits((inv_wb_b * b as i32 + (1 << 9)) >> 10, 15);
let r = snef_curve
.dither(clampbits((y2 + 1.370705 * cr) as i32, 12), &mut random);
let g = snef_curve.dither(
clampbits((y2 - 0.337633 * cb - 0.698001 * cr) as i32, 12),
&mut random,
);
let b = snef_curve
.dither(clampbits((y2 + 1.732446 * cb) as i32, 12), &mut random);
o[3] = clampbits((inv_wb_r * r as i32 + (1 << 9)) >> 10, 15);
o[4] = g;
o[5] = clampbits((inv_wb_b * b as i32 + (1 << 9)) >> 10, 15);
}
}),
)
}
}
}
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