Switch to using rusttype

drivers/vesad/Cargo.toml

@@ -4,4 +4,5 @@ version = "0.1.0"
 
 [dependencies]
 ransid = { git = "https://github.com/redox-os/ransid.git", branch = "new_api" }
+rusttype = { git = "https://github.com/dylanede/rusttype.git" }
 syscall = { path = "../../syscall/" }

drivers/vesad/src/display.rs

@@ -1,8 +1,15 @@
+extern crate rusttype;
+
 use std::cmp;
 
 use primitive::{fast_set32, fast_set64, fast_copy64};
 
-static FONT: &'static [u8] = include_bytes!("../../../res/unifont.font");
+use self::rusttype::{Font, FontCollection, Scale, point};
+
+static FONT: &'static [u8] = include_bytes!("../../../res/fonts/DejaVuSansMono.ttf");
+static FONT_BOLD: &'static [u8] = include_bytes!("../../../res/fonts/DejaVuSansMono-Bold.ttf");
+static FONT_BOLD_ITALIC: &'static [u8] = include_bytes!("../../../res/fonts/DejaVuSansMono-BoldOblique.ttf");
+static FONT_ITALIC: &'static [u8] = include_bytes!("../../../res/fonts/DejaVuSansMono-Oblique.ttf");
 
 /// A display
 pub struct Display {
@@ -10,6 +17,10 @@ pub struct Display {
     pub height: usize,
     pub onscreen: &'static mut [u32],
     pub offscreen: &'static mut [u32],
+    pub font: Font<'static>,
+    pub font_bold: Font<'static>,
+    pub font_bold_italic: Font<'static>,
+    pub font_italic: Font<'static>
 }
 
 impl Display {
@@ -19,6 +30,10 @@ impl Display {
             height: height,
             onscreen: onscreen,
             offscreen: offscreen,
+            font: FontCollection::from_bytes(FONT).into_font().unwrap(),
+            font_bold: FontCollection::from_bytes(FONT_BOLD).into_font().unwrap(),
+            font_bold_italic: FontCollection::from_bytes(FONT_BOLD_ITALIC).into_font().unwrap(),
+            font_italic: FontCollection::from_bytes(FONT_ITALIC).into_font().unwrap()
         }
     }
 
@@ -52,42 +67,42 @@ impl Display {
     }
 
     /// Draw a character
-    pub fn char(&mut self, x: usize, y: usize, character: char, color: u32) {
-        if x + 8 <= self.width && y + 16 <= self.height {
-            let mut font_i = 16 * (character as usize);
-            let font_end = font_i + 16;
-            if font_end <= FONT.len() {
-                let mut offscreen_ptr = self.offscreen.as_mut_ptr() as usize;
-                let mut onscreen_ptr = self.onscreen.as_mut_ptr() as usize;
+    pub fn char(&mut self, x: usize, y: usize, character: char, color: u32, bold: bool, italic: bool) {
+        let width = self.width;
+        let height = self.height;
+        let offscreen = self.offscreen.as_mut_ptr();
+        let onscreen = self.onscreen.as_mut_ptr();
 
-                let stride = self.width * 4;
+        let font = if bold && italic {
+            &self.font_bold_italic
+        } else if bold {
+            &self.font_bold
+        } else if italic {
+            &self.font_italic
+        } else {
+            &self.font
+        };
 
-                let offset = y * stride + x * 4;
-                offscreen_ptr += offset;
-                onscreen_ptr += offset;
+        if let Some(glyph) = font.glyph(character){
+            let scale = Scale::uniform(16.0);
+            let v_metrics = font.v_metrics(scale);
+            let point = point(0.0, v_metrics.ascent);
+            glyph.scaled(scale).positioned(point).draw(|off_x, off_y, v| {
+                let off_x = x + off_x as usize;
+                let off_y = y + off_y as usize;
+                // There's still a possibility that the glyph clips the boundaries of the bitmap
+                if off_x < width && off_y < height {
+                    let v_u = (v * 255.0) as u32;
+                    let r = ((color >> 16) & 0xFF * v_u)/255;
+                    let g = ((color >> 8) & 0xFF * v_u)/255;
+                    let b = (color & 0xFF * v_u)/255;
+                    let c = (r << 16) | (g << 8) | b;
 
-                while font_i < font_end {
-                    let mut row_data = FONT[font_i];
-                    let mut col = 8;
-                    while col > 0 {
-                        col -= 1;
-                        if row_data & 1 == 1 {
-                            unsafe {
-                                *((offscreen_ptr + col * 4) as *mut u32) = color;
-                            }
-                        }
-                        row_data = row_data >> 1;
-                    }
-
-                    unsafe {
-                        fast_copy64(onscreen_ptr as *mut u64, offscreen_ptr as *const u64, 4);
-                    }
-
-                    offscreen_ptr += stride;
-                    onscreen_ptr += stride;
-                    font_i += 1;
-                }
+                    let index = (off_y * width + off_x) as isize;
+                    unsafe { *offscreen.offset(index) = c; }
+                    unsafe { *onscreen.offset(index) = c; }
                 }
+            });
         }
     }
 

drivers/vesad/src/main.rs

@@ -67,7 +67,7 @@ impl Scheme for DisplayScheme {
             let mut display = self.display.borrow_mut();
             self.console.borrow_mut().write(buf, |event| {
                 match event {
-                    Event::Char { x, y, c, color, .. } => display.char(x * 8, y * 16, c, color.data),
+                    Event::Char { x, y, c, color, bold, .. } => display.char(x * 8, y * 16, c, color.data, bold, false),
                     Event::Rect { x, y, w, h, color } => display.rect(x * 8, y * 16, w * 8, h * 16, color.data),
                     Event::Scroll { rows, color } => display.scroll(rows * 16, color.data)
                 }

res/fonts/DejaVuSansMono-LICENSE

@@ -0,0 +1,187 @@
+Fonts are (c) Bitstream (see below). DejaVu changes are in public domain.
+Glyphs imported from Arev fonts are (c) Tavmjong Bah (see below)
+
+
+Bitstream Vera Fonts Copyright
+------------------------------
+
+Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved. Bitstream Vera is
+a trademark of Bitstream, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of the fonts accompanying this license ("Fonts") and associated
+documentation files (the "Font Software"), to reproduce and distribute the
+Font Software, including without limitation the rights to use, copy, merge,
+publish, distribute, and/or sell copies of the Font Software, and to permit
+persons to whom the Font Software is furnished to do so, subject to the
+following conditions:
+
+The above copyright and trademark notices and this permission notice shall
+be included in all copies of one or more of the Font Software typefaces.
+
+The Font Software may be modified, altered, or added to, and in particular
+the designs of glyphs or characters in the Fonts may be modified and
+additional glyphs or characters may be added to the Fonts, only if the fonts
+are renamed to names not containing either the words "Bitstream" or the word
+"Vera".
+
+This License becomes null and void to the extent applicable to Fonts or Font
+Software that has been modified and is distributed under the "Bitstream
+Vera" names.
+
+The Font Software may be sold as part of a larger software package but no
+copy of one or more of the Font Software typefaces may be sold by itself.
+
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL BITSTREAM OR THE GNOME
+FOUNDATION BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING
+ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE
+FONT SOFTWARE.
+
+Except as contained in this notice, the names of Gnome, the Gnome
+Foundation, and Bitstream Inc., shall not be used in advertising or
+otherwise to promote the sale, use or other dealings in this Font Software
+without prior written authorization from the Gnome Foundation or Bitstream
+Inc., respectively. For further information, contact: fonts at gnome dot
+org.
+
+Arev Fonts Copyright
+------------------------------
+
+Copyright (c) 2006 by Tavmjong Bah. All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the fonts accompanying this license ("Fonts") and
+associated documentation files (the "Font Software"), to reproduce
+and distribute the modifications to the Bitstream Vera Font Software,
+including without limitation the rights to use, copy, merge, publish,
+distribute, and/or sell copies of the Font Software, and to permit
+persons to whom the Font Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright and trademark notices and this permission notice
+shall be included in all copies of one or more of the Font Software
+typefaces.
+
+The Font Software may be modified, altered, or added to, and in
+particular the designs of glyphs or characters in the Fonts may be
+modified and additional glyphs or characters may be added to the
+Fonts, only if the fonts are renamed to names not containing either
+the words "Tavmjong Bah" or the word "Arev".
+
+This License becomes null and void to the extent applicable to Fonts
+or Font Software that has been modified and is distributed under the 
+"Tavmjong Bah Arev" names.
+
+The Font Software may be sold as part of a larger software package but
+no copy of one or more of the Font Software typefaces may be sold by
+itself.
+
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL
+TAVMJONG BAH BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
+
+Except as contained in this notice, the name of Tavmjong Bah shall not
+be used in advertising or otherwise to promote the sale, use or other
+dealings in this Font Software without prior written authorization
+from Tavmjong Bah. For further information, contact: tavmjong @ free
+. fr.
+
+TeX Gyre DJV Math
+-----------------
+Fonts are (c) Bitstream (see below). DejaVu changes are in public domain.
+
+Math extensions done by B. Jackowski, P. Strzelczyk and P. Pianowski
+(on behalf of TeX users groups) are in public domain.
+
+Letters imported from Euler Fraktur from AMSfonts are (c) American
+Mathematical Society (see below).
+Bitstream Vera Fonts Copyright
+Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved. Bitstream Vera
+is a trademark of Bitstream, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of the fonts accompanying this license (“Fonts”) and associated
+documentation
+files (the “Font Software”), to reproduce and distribute the Font Software,
+including without limitation the rights to use, copy, merge, publish,
+distribute,
+and/or sell copies of the Font Software, and to permit persons  to whom
+the Font Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright and trademark notices and this permission notice
+shall be
+included in all copies of one or more of the Font Software typefaces.
+
+The Font Software may be modified, altered, or added to, and in particular
+the designs of glyphs or characters in the Fonts may be modified and
+additional
+glyphs or characters may be added to the Fonts, only if the fonts are
+renamed
+to names not containing either the words “Bitstream” or the word “Vera”.
+
+This License becomes null and void to the extent applicable to Fonts or
+Font Software
+that has been modified and is distributed under the “Bitstream Vera”
+names.
+
+The Font Software may be sold as part of a larger software package but
+no copy
+of one or more of the Font Software typefaces may be sold by itself.
+
+THE FONT SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL BITSTREAM OR THE GNOME
+FOUNDATION
+BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL,
+SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN
+ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR
+INABILITY TO USE
+THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE FONT SOFTWARE.
+Except as contained in this notice, the names of GNOME, the GNOME
+Foundation,
+and Bitstream Inc., shall not be used in advertising or otherwise to promote
+the sale, use or other dealings in this Font Software without prior written
+authorization from the GNOME Foundation or Bitstream Inc., respectively.
+For further information, contact: fonts at gnome dot org.
+
+AMSFonts (v. 2.2) copyright
+
+The PostScript Type 1 implementation of the AMSFonts produced by and
+previously distributed by Blue Sky Research and Y&Y, Inc. are now freely
+available for general use. This has been accomplished through the
+cooperation
+of a consortium of scientific publishers with Blue Sky Research and Y&Y.
+Members of this consortium include:
+
+Elsevier Science IBM Corporation Society for Industrial and Applied
+Mathematics (SIAM) Springer-Verlag American Mathematical Society (AMS)
+
+In order to assure the authenticity of these fonts, copyright will be
+held by
+the American Mathematical Society. This is not meant to restrict in any way
+the legitimate use of the fonts, such as (but not limited to) electronic
+distribution of documents containing these fonts, inclusion of these fonts
+into other public domain or commercial font collections or computer
+applications, use of the outline data to create derivative fonts and/or
+faces, etc. However, the AMS does require that the AMS copyright notice be
+removed from any derivative versions of the fonts which have been altered in
+any way. In addition, to ensure the fidelity of TeX documents using Computer
+Modern fonts, Professor Donald Knuth, creator of the Computer Modern faces,
+has requested that any alterations which yield different font metrics be
+given a different name.
+
+$Id$