more font improvements and cleanup

Get rid of the notion of a font's "ascent"; the reference point for
drawing is the top-left corner of the character box rather than the
baseline.  Add some more space between the menu entries and make the
highlight bar around the text.

Replace the default font.png with two images; the build system will
include one or the other based on the resolutions of the device.

Restore the original compiled-in bitmap font, to fall back on when
font.png can't be found (eg, in the charger binary).

Add support for bold text (when a font.png image is used).

Change-Id: I6d211a486a3636f20208502b1cd2aeae8b9f5b02
This commit is contained in:
Doug Zongker 2013-03-06 15:01:11 -08:00
parent 55a36ac1e0
commit 6fd59ac07d
11 changed files with 377 additions and 32 deletions

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Copyright (c) 2011, Raph Levien (firstname.lastname@gmail.com), Copyright (c) 2012, Cyreal (cyreal.org)
This Font Software is licensed under the SIL Open Font License, Version 1.1.
This license is copied below, and is also available with a FAQ at:
http://scripts.sil.org/OFL
-----------------------------------------------------------
SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
-----------------------------------------------------------
PREAMBLE
The goals of the Open Font License (OFL) are to stimulate worldwide
development of collaborative font projects, to support the font creation
efforts of academic and linguistic communities, and to provide a free and
open framework in which fonts may be shared and improved in partnership
with others.
The OFL allows the licensed fonts to be used, studied, modified and
redistributed freely as long as they are not sold by themselves. The
fonts, including any derivative works, can be bundled, embedded,
redistributed and/or sold with any software provided that any reserved
names are not used by derivative works. The fonts and derivatives,
however, cannot be released under any other type of license. The
requirement for fonts to remain under this license does not apply
to any document created using the fonts or their derivatives.
DEFINITIONS
"Font Software" refers to the set of files released by the Copyright
Holder(s) under this license and clearly marked as such. This may
include source files, build scripts and documentation.
"Reserved Font Name" refers to any names specified as such after the
copyright statement(s).
"Original Version" refers to the collection of Font Software components as
distributed by the Copyright Holder(s).
"Modified Version" refers to any derivative made by adding to, deleting,
or substituting -- in part or in whole -- any of the components of the
Original Version, by changing formats or by porting the Font Software to a
new environment.
"Author" refers to any designer, engineer, programmer, technical
writer or other person who contributed to the Font Software.
PERMISSION & CONDITIONS
Permission is hereby granted, free of charge, to any person obtaining
a copy of the Font Software, to use, study, copy, merge, embed, modify,
redistribute, and sell modified and unmodified copies of the Font
Software, subject to the following conditions:
1) Neither the Font Software nor any of its individual components,
in Original or Modified Versions, may be sold by itself.
2) Original or Modified Versions of the Font Software may be bundled,
redistributed and/or sold with any software, provided that each copy
contains the above copyright notice and this license. These can be
included either as stand-alone text files, human-readable headers or
in the appropriate machine-readable metadata fields within text or
binary files as long as those fields can be easily viewed by the user.
3) No Modified Version of the Font Software may use the Reserved Font
Name(s) unless explicit written permission is granted by the corresponding
Copyright Holder. This restriction only applies to the primary font name as
presented to the users.
4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
Software shall not be used to promote, endorse or advertise any
Modified Version, except to acknowledge the contribution(s) of the
Copyright Holder(s) and the Author(s) or with their explicit written
permission.
5) The Font Software, modified or unmodified, in part or in whole,
must be distributed entirely under this license, and must not be
distributed under any other license. The requirement for fonts to
remain under this license does not apply to any document created
using the Font Software.
TERMINATION
This license becomes null and void if any of the above conditions are
not met.
DISCLAIMER
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 THE
COPYRIGHT HOLDER 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.

6
fonts/README Normal file
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The images in this directory were generated using the font
Inconsolata, which is released under the OFL license and was obtained
from:
https://code.google.com/p/googlefontdirectory/source/browse/ofl/inconsolata/

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struct {
unsigned width;
unsigned height;
unsigned cwidth;
unsigned cheight;
unsigned char rundata[];
} font = {
.width = 960,
.height = 18,
.cwidth = 10,
.cheight = 18,
.rundata = {
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0x84,0x3f,
0x00,
}
};

View file

@ -30,6 +30,7 @@
#include <pixelflinger/pixelflinger.h>
#include "font_10x18.h"
#include "minui.h"
#if defined(RECOVERY_BGRA)
@ -49,7 +50,6 @@ typedef struct {
GGLSurface* texture;
unsigned cwidth;
unsigned cheight;
unsigned ascent;
} GRFont;
static GRFont *gr_font = 0;
@ -223,7 +223,7 @@ void gr_font_size(int *x, int *y)
*y = gr_font->cheight;
}
int gr_text(int x, int y, const char *s)
int gr_text(int x, int y, const char *s, int bold)
{
GGLContext *gl = gr_context;
GRFont *font = gr_font;
@ -231,11 +231,11 @@ int gr_text(int x, int y, const char *s)
if (!font->texture) return x;
bold = bold && (font->texture->height != font->cheight);
x += overscan_offset_x;
y += overscan_offset_y;
y -= font->ascent;
gl->bindTexture(gl, font->texture);
gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
@ -245,7 +245,8 @@ int gr_text(int x, int y, const char *s)
while((off = *s++)) {
off -= 32;
if (off < 96) {
gl->texCoord2i(gl, (off * font->cwidth) - x, 0 - y);
gl->texCoord2i(gl, (off * font->cwidth) - x,
(bold ? font->cheight : 0) - y);
gl->recti(gl, x, y, x + font->cwidth, y + font->cheight);
}
x += font->cwidth;
@ -326,18 +327,37 @@ static void gr_init_font(void)
gr_font = calloc(sizeof(*gr_font), 1);
int res = res_create_surface("font", (void**)&(gr_font->texture));
if (res != 0) {
if (res == 0) {
// The font image should be a 96x2 array of character images. The
// columns are the printable ASCII characters 0x20 - 0x7f. The
// top row is regular text; the bottom row is bold.
gr_font->cwidth = gr_font->texture->width / 96;
gr_font->cheight = gr_font->texture->height / 2;
} else {
printf("failed to read font: res=%d\n", res);
gr_font->texture = NULL;
return;
// fall back to the compiled-in font.
gr_font->texture = malloc(sizeof(*gr_font->texture));
gr_font->texture->width = font.width;
gr_font->texture->height = font.height;
gr_font->texture->stride = font.width;
unsigned char* bits = malloc(font.width * font.height);
gr_font->texture->data = (void*) bits;
unsigned char data;
unsigned char* in = font.rundata;
while((data = *in++)) {
memset(bits, (data & 0x80) ? 255 : 0, data & 0x7f);
bits += (data & 0x7f);
}
gr_font->cwidth = font.cwidth;
gr_font->cheight = font.cheight;
}
// interpret the grayscale as alpha
gr_font->texture->format = GGL_PIXEL_FORMAT_A_8;
gr_font->cwidth = gr_font->texture->width / 96;
gr_font->cheight = gr_font->texture->height;
gr_font->ascent = gr_font->cheight - 2;
}
int gr_init(void)

View file

@ -37,7 +37,7 @@ void gr_fb_blank(bool blank);
void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
void gr_fill(int x1, int y1, int x2, int y2);
int gr_text(int x, int y, const char *s);
int gr_text(int x, int y, const char *s, int bold);
void gr_texticon(int x, int y, gr_surface icon);
int gr_measure(const char *s);
void gr_font_size(int *x, int *y);

View file

@ -704,7 +704,6 @@ prompt_and_wait(Device* device, int status) {
break;
case Device::WIPE_CACHE:
ui->ShowText(false);
ui->Print("\n-- Wiping cache...\n");
erase_volume("/cache");
ui->Print("Cache wipe complete.\n");

Binary file not shown.

Before

Width:  |  Height:  |  Size: 5.1 KiB

View file

@ -192,11 +192,9 @@ void ScreenRecoveryUI::draw_progress_locked()
}
}
void ScreenRecoveryUI::draw_text_line(int row, const char* t) {
if (t[0] != '\0') {
gr_text(0, (row+1)*char_height-1, t);
}
}
#define C_HEADER 247,0,6
#define C_MENU 0,106,157
#define C_LOG 249,194,0
// Redraw everything on the screen. Does not flip pages.
// Should only be called with updateMutex locked.
@ -209,30 +207,46 @@ void ScreenRecoveryUI::draw_screen_locked()
gr_color(0, 0, 0, 160);
gr_fill(0, 0, gr_fb_width(), gr_fb_height());
int y = 0;
int i = 0;
if (show_menu) {
gr_color(64, 96, 255, 255);
gr_fill(0, (menu_top+menu_sel) * char_height,
gr_fb_width(), (menu_top+menu_sel+1)*char_height+1);
gr_color(C_HEADER, 255);
for (; i < menu_top + menu_items; ++i) {
if (i == menu_top) gr_color(C_MENU, 255);
if (i == menu_top + menu_sel) {
// draw the highlight bar
gr_fill(0, y-2, gr_fb_width(), y+char_height+2);
// white text of selected item
gr_color(255, 255, 255, 255);
draw_text_line(i, menu[i]);
gr_color(64, 96, 255, 255);
if (menu[i][0]) gr_text(4, y, menu[i], 1);
gr_color(C_MENU, 255);
} else {
draw_text_line(i, menu[i]);
if (menu[i][0]) gr_text(4, y, menu[i], i < menu_top);
}
y += char_height+4;
}
gr_fill(0, i*char_height+char_height/2-1,
gr_fb_width(), i*char_height+char_height/2+1);
gr_color(C_MENU, 255);
y += 4;
gr_fill(0, y, gr_fb_width(), y+2);
y += 4;
++i;
}
gr_color(255, 255, 0, 255);
gr_color(C_LOG, 255);
for (; i < text_rows; ++i) {
draw_text_line(i, text[(i+text_top) % text_rows]);
// display from the bottom up, until we hit the top of the
// screen, the bottom of the menu, or we've displayed the
// entire text buffer.
int ty;
int row = (text_top+text_rows-1) % text_rows;
for (int ty = gr_fb_height() - char_height, count = 0;
ty > y+2 && count < text_rows;
ty -= char_height, ++count) {
gr_text(4, ty, text[row], 0);
--row;
if (row < 0) row = text_rows-1;
}
}
}

View file

@ -76,7 +76,7 @@ class ScreenRecoveryUI : public RecoveryUI {
bool pagesIdentical;
static const int kMaxCols = 96;
static const int kMaxRows = 32;
static const int kMaxRows = 96;
// Log text overlay, displayed when a magic key is pressed
char text[kMaxRows][kMaxCols];
@ -100,7 +100,6 @@ class ScreenRecoveryUI : public RecoveryUI {
void draw_install_overlay_locked(int frame);
void draw_background_locked(Icon icon);
void draw_progress_locked();
void draw_text_line(int row, const char* t);
void draw_screen_locked();
void update_screen_locked();
void update_progress_locked();