--- /dev/null
+use crate::frame::*;
+
+mod kernel;
+
+mod colorcvt;
+mod repack;
+mod scale;
+
+#[derive(Clone,Copy,PartialEq)]
+pub struct ScaleInfo {
+ pub fmt: NAPixelFormaton,
+ pub width: usize,
+ pub height: usize,
+}
+
+impl std::fmt::Display for ScaleInfo {
+ fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+ write!(f, "({}x{}, {})", self.width, self.height, self.fmt)
+ }
+}
+
+#[derive(Debug,Clone,Copy,PartialEq)]
+#[allow(dead_code)]
+pub enum ScaleError {
+ NoFrame,
+ AllocError,
+ InvalidArgument,
+ NotImplemented,
+ Bug,
+}
+
+pub type ScaleResult<T> = Result<T, ScaleError>;
+
+/*trait Kernel {
+ fn init(&mut self, in_fmt: &ScaleInfo, dest_fmt: &ScaleInfo) -> ScaleResult<NABufferType>;
+ fn process(&mut self, pic_in: &NABufferType, pic_out: &mut NABufferType);
+}*/
+
+struct KernelDesc {
+ name: &'static str,
+ create: fn () -> Box<kernel::Kernel>,
+}
+
+impl KernelDesc {
+ fn find(name: &str) -> ScaleResult<Box<kernel::Kernel>> {
+ for kern in KERNELS.iter() {
+ if kern.name == name {
+ return Ok((kern.create)());
+ }
+ }
+ Err(ScaleError::InvalidArgument)
+ }
+}
+
+const KERNELS: &[KernelDesc] = &[
+ KernelDesc { name: "pack", create: repack::create_pack },
+ KernelDesc { name: "unpack", create: repack::create_unpack },
+ KernelDesc { name: "depal", create: repack::create_depal },
+ KernelDesc { name: "scale", create: scale::create_scale },
+ KernelDesc { name: "rgb_to_yuv", create: colorcvt::create_rgb2yuv },
+ KernelDesc { name: "yuv_to_rgb", create: colorcvt::create_yuv2rgb },
+];
+
+struct Stage {
+ fmt_out: ScaleInfo,
+ tmp_pic: NABufferType,
+ next: Option<Box<Stage>>,
+ worker: Box<kernel::Kernel>,
+}
+
+pub fn get_scale_fmt_from_pic(pic: &NABufferType) -> ScaleInfo {
+ let info = pic.get_video_info().unwrap();
+ ScaleInfo { fmt: info.get_format(), width: info.get_width(), height: info.get_height() }
+}
+
+impl Stage {
+ fn new(name: &str, in_fmt: &ScaleInfo, dest_fmt: &ScaleInfo) -> ScaleResult<Self> {
+ let mut worker = KernelDesc::find(name)?;
+ let tmp_pic = worker.init(in_fmt, dest_fmt)?;
+ let fmt_out = get_scale_fmt_from_pic(&tmp_pic);
+ Ok(Self { fmt_out, tmp_pic, next: None, worker })
+ }
+ fn add(&mut self, new: Stage) {
+ if let Some(ref mut next) = self.next {
+ next.add(new);
+ } else {
+ self.next = Some(Box::new(new));
+ }
+ }
+ fn process(&mut self, pic_in: &NABufferType, pic_out: &mut NABufferType) -> ScaleResult<()> {
+ if let Some(ref mut nextstage) = self.next {
+ self.worker.process(pic_in, &mut self.tmp_pic);
+ nextstage.process(&self.tmp_pic, pic_out)?;
+ } else {
+ self.worker.process(pic_in, pic_out);
+ }
+ Ok(())
+ }
+ fn drop_last_tmp(&mut self) {
+ if let Some(ref mut nextstage) = self.next {
+ nextstage.drop_last_tmp();
+ } else {
+ self.tmp_pic = NABufferType::None;
+ }
+ }
+}
+
+pub struct NAScale {
+ fmt_in: ScaleInfo,
+ fmt_out: ScaleInfo,
+ just_convert: bool,
+ pipeline: Option<Stage>,
+}
+
+fn check_format(in_fmt: NAVideoInfo, ref_fmt: &ScaleInfo, just_convert: bool) -> ScaleResult<()> {
+ if in_fmt.get_format() != ref_fmt.fmt { return Err(ScaleError::InvalidArgument); }
+ if !just_convert && (in_fmt.get_width() != ref_fmt.width || in_fmt.get_height() != ref_fmt.height) {
+ return Err(ScaleError::InvalidArgument);
+ }
+ Ok(())
+}
+
+fn copy(pic_in: &NABufferType, pic_out: &mut NABufferType)
+{
+ if let (Some(ref sbuf), Some(ref mut dbuf)) = (pic_in.get_vbuf(), pic_out.get_vbuf()) {
+ let sdata = sbuf.get_data();
+ let ddata = dbuf.get_data_mut().unwrap();
+ ddata.copy_from_slice(&sdata[0..]);
+ } else {
+ unimplemented!();
+ }
+}
+
+macro_rules! add_stage {
+ ($head:expr, $new:expr) => {
+ if let Some(ref mut h) = $head {
+ h.add($new);
+ } else {
+ $head = Some($new);
+ }
+ };
+}
+fn is_better_fmt(a: &ScaleInfo, b: &ScaleInfo) -> bool {
+ if (a.width >= b.width) && (a.height >= b.height) {
+ return true;
+ }
+ if a.fmt.get_max_depth() > b.fmt.get_max_depth() {
+ return true;
+ }
+ if a.fmt.get_max_subsampling() < b.fmt.get_max_subsampling() {
+ return true;
+ }
+ false
+}
+fn build_pipeline(ifmt: &ScaleInfo, ofmt: &ScaleInfo, just_convert: bool) -> ScaleResult<Option<Stage>> {
+ let inname = ifmt.fmt.get_model().get_short_name();
+ let outname = ofmt.fmt.get_model().get_short_name();
+
+println!("convert {} -> {}", ifmt, ofmt);
+ let mut needs_scale = !just_convert;
+ if (ofmt.fmt.get_max_subsampling() > 0) &&
+ (ofmt.fmt.get_max_subsampling() != ifmt.fmt.get_max_subsampling()) {
+ needs_scale = true;
+ }
+ let needs_unpack = needs_scale || !ifmt.fmt.is_unpacked();
+ let needs_pack = !ofmt.fmt.is_unpacked();
+ let mut needs_convert = false;
+ if inname != outname {
+ needs_convert = true;
+ }
+ let scale_before_cvt = is_better_fmt(&ifmt, &ofmt) && needs_convert
+ && (ofmt.fmt.get_max_subsampling() == 0);
+//todo stages for model and gamma conversion
+
+ let mut stages: Option<Stage> = None;
+ let mut cur_fmt = *ifmt;
+
+ if needs_unpack {
+println!("[adding unpack]");
+ let new_stage;
+ if !cur_fmt.fmt.is_paletted() {
+ new_stage = Stage::new("unpack", &cur_fmt, &ofmt)?;
+ } else {
+ new_stage = Stage::new("depal", &cur_fmt, &ofmt)?;
+ }
+ cur_fmt = new_stage.fmt_out;
+ add_stage!(stages, new_stage);
+ }
+ if needs_scale && scale_before_cvt {
+println!("[adding scale]");
+ let new_stage = Stage::new("scale", &cur_fmt, &ofmt)?;
+ cur_fmt = new_stage.fmt_out;
+ add_stage!(stages, new_stage);
+ }
+ if needs_convert {
+println!("[adding convert]");
+ let cvtname = format!("{}_to_{}", inname, outname);
+println!("[{}]", cvtname);
+ let new_stage = Stage::new(&cvtname, &cur_fmt, &ofmt)?;
+//todo if fails try converting via RGB or YUV
+ cur_fmt = new_stage.fmt_out;
+ add_stage!(stages, new_stage);
+//todo alpha plane copy/add
+ }
+ if needs_scale && !scale_before_cvt {
+println!("[adding scale]");
+ let new_stage = Stage::new("scale", &cur_fmt, &ofmt)?;
+ cur_fmt = new_stage.fmt_out;
+ add_stage!(stages, new_stage);
+ }
+//todo flip if needed
+ if needs_pack {
+println!("[adding pack]");
+ let new_stage = Stage::new("pack", &cur_fmt, &ofmt)?;
+ //cur_fmt = new_stage.fmt_out;
+ add_stage!(stages, new_stage);
+ }
+
+ if let Some(ref mut head) = stages {
+ head.drop_last_tmp();
+ }
+
+ Ok(stages)
+}
+
+impl NAScale {
+ pub fn new(fmt_in: ScaleInfo, fmt_out: ScaleInfo) -> ScaleResult<Self> {
+ let pipeline;
+ let just_convert = (fmt_in.width == fmt_out.width) && (fmt_in.height == fmt_out.height);
+ if fmt_in != fmt_out {
+ pipeline = build_pipeline(&fmt_in, &fmt_out, just_convert)?;
+ } else {
+ pipeline = None;
+ }
+ Ok(Self { fmt_in, fmt_out, just_convert, pipeline })
+ }
+ pub fn needs_processing(&self) -> bool { self.pipeline.is_some() }
+ pub fn get_in_fmt(&self) -> ScaleInfo { self.fmt_in }
+ pub fn get_out_fmt(&self) -> ScaleInfo { self.fmt_out }
+ pub fn convert(&mut self, pic_in: &NABufferType, pic_out: &mut NABufferType) -> ScaleResult<()> {
+ let in_info = pic_in.get_video_info();
+ let out_info = pic_out.get_video_info();
+ if in_info.is_none() || out_info.is_none() { return Err(ScaleError::InvalidArgument); }
+ let in_info = in_info.unwrap();
+ let out_info = out_info.unwrap();
+ if self.just_convert &&
+ (in_info.get_width() != out_info.get_width() || in_info.get_height() != out_info.get_height()) {
+ return Err(ScaleError::InvalidArgument);
+ }
+ check_format(in_info, &self.fmt_in, self.just_convert)?;
+ check_format(out_info, &self.fmt_out, self.just_convert)?;
+ if let Some(ref mut pipe) = self.pipeline {
+ pipe.process(pic_in, pic_out)
+ } else {
+ copy(pic_in, pic_out);
+ Ok(())
+ }
+ }
+}
+
+#[cfg(test)]
+mod test {
+ use super::*;
+
+ fn fill_pic(pic: &mut NABufferType, val: u8) {
+ if let Some(ref mut buf) = pic.get_vbuf() {
+ let data = buf.get_data_mut().unwrap();
+ for el in data.iter_mut() { *el = val; }
+ } else if let Some(ref mut buf) = pic.get_vbuf16() {
+ let data = buf.get_data_mut().unwrap();
+ for el in data.iter_mut() { *el = val as u16; }
+ } else if let Some(ref mut buf) = pic.get_vbuf32() {
+ let data = buf.get_data_mut().unwrap();
+ for el in data.iter_mut() { *el = (val as u32) * 0x01010101; }
+ }
+ }
+ #[test]
+ fn test_convert() {
+ let mut in_pic = alloc_video_buffer(NAVideoInfo::new(1, 1, false, RGB565_FORMAT), 3).unwrap();
+ fill_pic(&mut in_pic, 42);
+ let mut out_pic = alloc_video_buffer(NAVideoInfo::new(1, 1, false, RGB24_FORMAT), 3).unwrap();
+ fill_pic(&mut out_pic, 0);
+ let ifmt = get_scale_fmt_from_pic(&in_pic);
+ let ofmt = get_scale_fmt_from_pic(&out_pic);
+ let mut scaler = NAScale::new(ifmt, ofmt).unwrap();
+ scaler.convert(&in_pic, &mut out_pic).unwrap();
+ let obuf = out_pic.get_vbuf().unwrap();
+ let odata = obuf.get_data();
+ assert_eq!(odata[0], 0x0);
+ assert_eq!(odata[1], 0x4);
+ assert_eq!(odata[2], 0x52);
+
+ let mut in_pic = alloc_video_buffer(NAVideoInfo::new(4, 4, false, RGB24_FORMAT), 3).unwrap();
+ fill_pic(&mut in_pic, 42);
+ let mut out_pic = alloc_video_buffer(NAVideoInfo::new(4, 4, false, YUV420_FORMAT), 3).unwrap();
+ fill_pic(&mut out_pic, 0);
+ let ifmt = get_scale_fmt_from_pic(&in_pic);
+ let ofmt = get_scale_fmt_from_pic(&out_pic);
+ let mut scaler = NAScale::new(ifmt, ofmt).unwrap();
+ scaler.convert(&in_pic, &mut out_pic).unwrap();
+ let obuf = out_pic.get_vbuf().unwrap();
+ let yoff = obuf.get_offset(0);
+ let uoff = obuf.get_offset(1);
+ let voff = obuf.get_offset(2);
+ let odata = obuf.get_data();
+ assert_eq!(odata[yoff], 42);
+ assert!(((odata[uoff] ^ 0x80) as i8).abs() <= 1);
+ assert!(((odata[voff] ^ 0x80) as i8).abs() <= 1);
+ let mut scaler = NAScale::new(ofmt, ifmt).unwrap();
+ scaler.convert(&out_pic, &mut in_pic).unwrap();
+ let obuf = in_pic.get_vbuf().unwrap();
+ let odata = obuf.get_data();
+ assert_eq!(odata[0], 42);
+ }
+ #[test]
+ fn test_scale() {
+ let mut in_pic = alloc_video_buffer(NAVideoInfo::new(2, 2, false, RGB565_FORMAT), 3).unwrap();
+ fill_pic(&mut in_pic, 42);
+ let mut out_pic = alloc_video_buffer(NAVideoInfo::new(3, 3, false, RGB565_FORMAT), 3).unwrap();
+ fill_pic(&mut out_pic, 0);
+ let ifmt = get_scale_fmt_from_pic(&in_pic);
+ let ofmt = get_scale_fmt_from_pic(&out_pic);
+ let mut scaler = NAScale::new(ifmt, ofmt).unwrap();
+ scaler.convert(&in_pic, &mut out_pic).unwrap();
+ let obuf = out_pic.get_vbuf16().unwrap();
+ let odata = obuf.get_data();
+ assert_eq!(odata[0], 42);
+ }
+ #[test]
+ fn test_scale_and_convert() {
+ let mut in_pic = alloc_video_buffer(NAVideoInfo::new(7, 3, false, RGB565_FORMAT), 3).unwrap();
+ fill_pic(&mut in_pic, 42);
+ let mut out_pic = alloc_video_buffer(NAVideoInfo::new(4, 4, false, YUV420_FORMAT), 3).unwrap();
+ fill_pic(&mut out_pic, 0);
+ let ifmt = get_scale_fmt_from_pic(&in_pic);
+ let ofmt = get_scale_fmt_from_pic(&out_pic);
+ let mut scaler = NAScale::new(ifmt, ofmt).unwrap();
+ scaler.convert(&in_pic, &mut out_pic).unwrap();
+ let obuf = out_pic.get_vbuf().unwrap();
+ let yoff = obuf.get_offset(0);
+ let uoff = obuf.get_offset(1);
+ let voff = obuf.get_offset(2);
+ let odata = obuf.get_data();
+ assert_eq!(odata[yoff], 28);
+ assert_eq!(odata[uoff], 154);
+ assert_eq!(odata[voff], 103);
+ }
+}
projects / nihav.git / blobdiff