use a bit more modern Rust idioms

[nihav-tool.git] / src / frmwriter.rs

diff --git a/src/frmwriter.rs b/src/frmwriter.rs
index ac0c7b516c44eda4eb9de991014278c2f3f4924b..57141cd4daea4d58718ab3dac36828c261758405 100644 (file)
--- a/src/frmwriter.rs
+++ b/src/frmwriter.rs
@@ -1,26 +1,30 @@
-extern crate nihav;
+extern crate nihav_core;
 
-use nihav::frame::*;
+use nihav_core::frame::*;
 use std::io::prelude::*;
 use std::fs::File;
-use std::cell::Ref;
 
-pub fn write_pgmyuv(pfx: &str, strno: usize, num: u64, frm: Ref<NAFrame>) {
+pub fn write_pgmyuv(pfx: &str, strno: usize, num: u64, frm: NAFrameRef) {
     if let NABufferType::None = frm.get_buffer() { return; }
-    let name = format!("{}out{:02}_{:04}.pgm", pfx, strno, num);
+    let name = format!("{}out{:02}_{:08}.pgm", pfx, strno, num);
     let mut ofile = File::create(name).unwrap();
     let buf = frm.get_buffer().get_vbuf().unwrap();
     let (w, h) = buf.get_dimensions(0);
     let (w2, h2) = buf.get_dimensions(1);
-    let tot_h = h + h2;
+    let has_alpha = buf.get_info().get_format().has_alpha();
+    let tot_h;
+    if has_alpha {
+        tot_h = h * 2 + h2;
+    } else {
+        tot_h = h + h2;
+    }
     let hdr = format!("P5\n{} {}\n255\n", w, tot_h);
     ofile.write_all(hdr.as_bytes()).unwrap();
     let dta = buf.get_data();
     let ls = buf.get_stride(0);
     let mut idx = 0;
     let mut idx2 = w;
-    let mut pad: Vec<u8> = Vec::with_capacity((w - w2 * 2) / 2);
-    pad.resize((w - w2 * 2) / 2, 0xFF);
+    let pad: Vec<u8> = vec![0xFF; (w - w2 * 2) / 2];
     for _ in 0..h {
         let line = &dta[idx..idx2];
         ofile.write_all(line).unwrap();
@@ -45,10 +49,21 @@ pub fn write_pgmyuv(pfx: &str, strno: usize, num: u64, frm: Ref<NAFrame>) {
         base1 += stride1;
         base2 += stride2;
     }
+    if has_alpha {
+        let ls = buf.get_stride(3);
+        let mut idx = buf.get_offset(3);
+        let mut idx2 = idx + w;
+        for _ in 0..h {
+            let line = &dta[idx..idx2];
+            ofile.write_all(line).unwrap();
+            idx  += ls;
+            idx2 += ls;
+        }
+    }
 }
 
-pub fn write_palppm(pfx: &str, strno: usize, num: u64, frm: Ref<NAFrame>) {
-    let name = format!("{}out{:02}_{:04}.ppm", pfx, strno, num);
+pub fn write_palppm(pfx: &str, strno: usize, num: u64, frm: NAFrameRef) {
+    let name = format!("{}out{:02}_{:08}.ppm", pfx, strno, num);
     let mut ofile = File::create(name).unwrap();
     let buf = frm.get_buffer().get_vbuf().unwrap();
     let (w, h) = buf.get_dimensions(0);
@@ -57,18 +72,85 @@ pub fn write_palppm(pfx: &str, strno: usize, num: u64, frm: Ref<NAFrame>) {
     ofile.write_all(hdr.as_bytes()).unwrap();
     let dta = buf.get_data();
     let ls = buf.get_stride(0);
+    let offs: [usize; 3] = [
+            buf.get_info().get_format().get_chromaton(0).unwrap().get_offset() as usize,
+            buf.get_info().get_format().get_chromaton(1).unwrap().get_offset() as usize,
+            buf.get_info().get_format().get_chromaton(2).unwrap().get_offset() as usize
+        ];
     let mut idx  = 0;
-    let mut line: Vec<u8> = Vec::with_capacity(w * 3);
-    line.resize(w * 3, 0);
+    let mut line: Vec<u8> = vec![0; w * 3];
     for _ in 0..h {
         let src = &dta[idx..(idx+w)];
         for x in 0..w {
             let pix = src[x] as usize;
-            line[x * 3 + 0] = dta[paloff + pix * 3 + 2];
-            line[x * 3 + 1] = dta[paloff + pix * 3 + 1];
-            line[x * 3 + 2] = dta[paloff + pix * 3 + 0];
+            line[x * 3 + 0] = dta[paloff + pix * 3 + offs[0]];
+            line[x * 3 + 1] = dta[paloff + pix * 3 + offs[1]];
+            line[x * 3 + 2] = dta[paloff + pix * 3 + offs[2]];
         }
         ofile.write_all(line.as_slice()).unwrap();
         idx  += ls;
     }
 }
+
+pub fn write_ppm(pfx: &str, strno: usize, num: u64, frm: NAFrameRef) {
+    let name = format!("{}out{:02}_{:08}.ppm", pfx, strno, num);
+    let mut ofile = File::create(name).unwrap();
+    if let NABufferType::VideoPacked(ref buf) = frm.get_buffer() {
+        let (w, h) = buf.get_dimensions(0);
+        let hdr = format!("P6\n{} {}\n255\n", w, h);
+        ofile.write_all(hdr.as_bytes()).unwrap();
+        let dta = buf.get_data();
+        let stride = buf.get_stride(0);
+        let offs: [usize; 3] = [
+                buf.get_info().get_format().get_chromaton(0).unwrap().get_offset() as usize,
+                buf.get_info().get_format().get_chromaton(1).unwrap().get_offset() as usize,
+                buf.get_info().get_format().get_chromaton(2).unwrap().get_offset() as usize
+            ];
+        let step = buf.get_info().get_format().get_elem_size() as usize;
+        let mut line: Vec<u8> = vec![0; w * 3];
+        for src in dta.chunks(stride) {
+            for x in 0..w {
+                line[x * 3 + 0] = src[x * step + offs[0]];
+                line[x * 3 + 1] = src[x * step + offs[1]];
+                line[x * 3 + 2] = src[x * step + offs[2]];
+            }
+            ofile.write_all(line.as_slice()).unwrap();
+        }
+    } else if let NABufferType::Video16(ref buf) = frm.get_buffer() {
+        let (w, h) = buf.get_dimensions(0);
+        let hdr = format!("P6\n{} {}\n255\n", w, h);
+        ofile.write_all(hdr.as_bytes()).unwrap();
+        let dta = buf.get_data();
+        let stride = buf.get_stride(0);
+        let depths: [u8; 3] = [
+                buf.get_info().get_format().get_chromaton(0).unwrap().get_depth(),
+                buf.get_info().get_format().get_chromaton(1).unwrap().get_depth(),
+                buf.get_info().get_format().get_chromaton(2).unwrap().get_depth()
+            ];
+        let masks: [u16; 3] = [
+                (1 << depths[0]) - 1,
+                (1 << depths[1]) - 1,
+                (1 << depths[2]) - 1
+            ];
+        let shifts: [u8; 3] = [
+                buf.get_info().get_format().get_chromaton(0).unwrap().get_shift(),
+                buf.get_info().get_format().get_chromaton(1).unwrap().get_shift(),
+                buf.get_info().get_format().get_chromaton(2).unwrap().get_shift()
+            ];
+        let mut line: Vec<u8> = vec![0; w * 3];
+        for src in dta.chunks(stride) {
+            for x in 0..w {
+                let elem = src[x];
+                let r = ((elem >> shifts[0]) & masks[0]) << (8 - depths[0]);
+                let g = ((elem >> shifts[1]) & masks[1]) << (8 - depths[1]);
+                let b = ((elem >> shifts[2]) & masks[2]) << (8 - depths[2]);
+                line[x * 3 + 0] = r as u8;
+                line[x * 3 + 1] = g as u8;
+                line[x * 3 + 2] = b as u8;
+            }
+            ofile.write_all(line.as_slice()).unwrap();
+        }
+    } else {
+panic!(" unhandled buf format");
+    }
+}