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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
Doug Zongker 8 years ago
parent
commit
6fd59ac07d
11 changed files with 378 additions and 33 deletions
  1. BIN
      fonts/12x22.png
  2. BIN
      fonts/18x32.png
  3. 93
    0
      fonts/OFL.txt
  4. 6
    0
      fonts/README
  5. 214
    0
      minui/font_10x18.h
  6. 32
    12
      minui/graphics.c
  7. 1
    1
      minui/minui.h
  8. 0
    1
      recovery.cpp
  9. BIN
      res/images/font.png
  10. 31
    17
      screen_ui.cpp
  11. 1
    2
      screen_ui.h

BIN
fonts/12x22.png View File


BIN
fonts/18x32.png View File


+ 93
- 0
fonts/OFL.txt View File

@@ -0,0 +1,93 @@
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+Copyright (c) 2011, Raph Levien (firstname.lastname@gmail.com), Copyright (c) 2012, Cyreal (cyreal.org)
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+
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+This Font Software is licensed under the SIL Open Font License, Version 1.1.
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+This license is copied below, and is also available with a FAQ at:
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+http://scripts.sil.org/OFL
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+
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+
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+-----------------------------------------------------------
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+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
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+-----------------------------------------------------------
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+
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+PREAMBLE
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+The goals of the Open Font License (OFL) are to stimulate worldwide
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+development of collaborative font projects, to support the font creation
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+efforts of academic and linguistic communities, and to provide a free and
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+open framework in which fonts may be shared and improved in partnership
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+with others.
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+
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+The OFL allows the licensed fonts to be used, studied, modified and
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+redistributed freely as long as they are not sold by themselves. The
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+fonts, including any derivative works, can be bundled, embedded, 
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+redistributed and/or sold with any software provided that any reserved
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+names are not used by derivative works. The fonts and derivatives,
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+however, cannot be released under any other type of license. The
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+requirement for fonts to remain under this license does not apply
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+to any document created using the fonts or their derivatives.
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+
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+DEFINITIONS
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+"Font Software" refers to the set of files released by the Copyright
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+Holder(s) under this license and clearly marked as such. This may
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+include source files, build scripts and documentation.
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+
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+"Reserved Font Name" refers to any names specified as such after the
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+copyright statement(s).
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+
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+"Original Version" refers to the collection of Font Software components as
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+distributed by the Copyright Holder(s).
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+
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+"Modified Version" refers to any derivative made by adding to, deleting,
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+or substituting -- in part or in whole -- any of the components of the
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+Original Version, by changing formats or by porting the Font Software to a
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+new environment.
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+
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+"Author" refers to any designer, engineer, programmer, technical
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+writer or other person who contributed to the Font Software.
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+
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+PERMISSION & CONDITIONS
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+Permission is hereby granted, free of charge, to any person obtaining
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+a copy of the Font Software, to use, study, copy, merge, embed, modify,
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+redistribute, and sell modified and unmodified copies of the Font
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+Software, subject to the following conditions:
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+
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+1) Neither the Font Software nor any of its individual components,
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+in Original or Modified Versions, may be sold by itself.
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+
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+2) Original or Modified Versions of the Font Software may be bundled,
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+redistributed and/or sold with any software, provided that each copy
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+contains the above copyright notice and this license. These can be
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+included either as stand-alone text files, human-readable headers or
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+in the appropriate machine-readable metadata fields within text or
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+binary files as long as those fields can be easily viewed by the user.
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+
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+3) No Modified Version of the Font Software may use the Reserved Font
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+Name(s) unless explicit written permission is granted by the corresponding
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+Copyright Holder. This restriction only applies to the primary font name as
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+presented to the users.
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+
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+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
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+Software shall not be used to promote, endorse or advertise any
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+Modified Version, except to acknowledge the contribution(s) of the
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+Copyright Holder(s) and the Author(s) or with their explicit written
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+permission.
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+
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+5) The Font Software, modified or unmodified, in part or in whole,
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+must be distributed entirely under this license, and must not be
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+distributed under any other license. The requirement for fonts to
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+remain under this license does not apply to any document created
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+using the Font Software.
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+
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+TERMINATION
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+This license becomes null and void if any of the above conditions are
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+not met.
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+
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+DISCLAIMER
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+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
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+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
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+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
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+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
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+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
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+OTHER DEALINGS IN THE FONT SOFTWARE.

+ 6
- 0
fonts/README View File

@@ -0,0 +1,6 @@
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+The images in this directory were generated using the font
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+Inconsolata, which is released under the OFL license and was obtained
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+from:
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+
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+  https://code.google.com/p/googlefontdirectory/source/browse/ofl/inconsolata/
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+

+ 214
- 0
minui/font_10x18.h View File

@@ -0,0 +1,214 @@
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+struct {
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+  unsigned width;
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+  unsigned height;
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+  unsigned cwidth;
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+  unsigned cheight;
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+  unsigned char rundata[];
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+} font = {
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+  .width = 960,
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+  .height = 18,
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+  .cwidth = 10,
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+  .cheight = 18,
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+  .rundata = {
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149
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150
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151
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154
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156
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157
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158
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159
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160
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162
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163
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164
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165
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167
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168
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169
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170
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171
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172
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173
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174
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175
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176
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177
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178
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179
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180
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181
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182
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185
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188
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189
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190
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191
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192
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193
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194
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196
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197
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198
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199
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200
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201
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202
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203
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204
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205
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206
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207
+0x82,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x0a,0x82,0x04,0x82,0x17,0x82,0x03,0x82,
208
+0x34,0x82,0x0e,0x82,0x48,0x82,0x04,0x82,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x0a,
209
+0x82,0x04,0x82,0x17,0x82,0x03,0x82,0x34,0x82,0x0e,0x82,0x49,0x82,0x02,0x82,
210
+0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x0c,0x86,0x19,0x85,0x35,0x82,0x0e,0x82,0x4a,
211
+0x84,0x3f,
212
+0x00,
213
+  }
214
+};

+ 32
- 12
minui/graphics.c View File

@@ -30,6 +30,7 @@
30 30
 
31 31
 #include <pixelflinger/pixelflinger.h>
32 32
 
33
+#include "font_10x18.h"
33 34
 #include "minui.h"
34 35
 
35 36
 #if defined(RECOVERY_BGRA)
@@ -49,7 +50,6 @@ typedef struct {
49 50
     GGLSurface* texture;
50 51
     unsigned cwidth;
51 52
     unsigned cheight;
52
-    unsigned ascent;
53 53
 } GRFont;
54 54
 
55 55
 static GRFont *gr_font = 0;
@@ -223,7 +223,7 @@ void gr_font_size(int *x, int *y)
223 223
     *y = gr_font->cheight;
224 224
 }
225 225
 
226
-int gr_text(int x, int y, const char *s)
226
+int gr_text(int x, int y, const char *s, int bold)
227 227
 {
228 228
     GGLContext *gl = gr_context;
229 229
     GRFont *font = gr_font;
@@ -231,11 +231,11 @@ int gr_text(int x, int y, const char *s)
231 231
 
232 232
     if (!font->texture) return x;
233 233
 
234
+    bold = bold && (font->texture->height != font->cheight);
235
+
234 236
     x += overscan_offset_x;
235 237
     y += overscan_offset_y;
236 238
 
237
-    y -= font->ascent;
238
-
239 239
     gl->bindTexture(gl, font->texture);
240 240
     gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
241 241
     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)
245 245
     while((off = *s++)) {
246 246
         off -= 32;
247 247
         if (off < 96) {
248
-            gl->texCoord2i(gl, (off * font->cwidth) - x, 0 - y);
248
+            gl->texCoord2i(gl, (off * font->cwidth) - x,
249
+                           (bold ? font->cheight : 0) - y);
249 250
             gl->recti(gl, x, y, x + font->cwidth, y + font->cheight);
250 251
         }
251 252
         x += font->cwidth;
@@ -326,18 +327,37 @@ static void gr_init_font(void)
326 327
     gr_font = calloc(sizeof(*gr_font), 1);
327 328
 
328 329
     int res = res_create_surface("font", (void**)&(gr_font->texture));
329
-    if (res != 0) {
330
+    if (res == 0) {
331
+        // The font image should be a 96x2 array of character images.  The
332
+        // columns are the printable ASCII characters 0x20 - 0x7f.  The
333
+        // top row is regular text; the bottom row is bold.
334
+        gr_font->cwidth = gr_font->texture->width / 96;
335
+        gr_font->cheight = gr_font->texture->height / 2;
336
+    } else {
330 337
         printf("failed to read font: res=%d\n", res);
331
-        gr_font->texture = NULL;
332
-        return;
338
+
339
+        // fall back to the compiled-in font.
340
+        gr_font->texture = malloc(sizeof(*gr_font->texture));
341
+        gr_font->texture->width = font.width;
342
+        gr_font->texture->height = font.height;
343
+        gr_font->texture->stride = font.width;
344
+
345
+        unsigned char* bits = malloc(font.width * font.height);
346
+        gr_font->texture->data = (void*) bits;
347
+
348
+        unsigned char data;
349
+        unsigned char* in = font.rundata;
350
+        while((data = *in++)) {
351
+            memset(bits, (data & 0x80) ? 255 : 0, data & 0x7f);
352
+            bits += (data & 0x7f);
353
+        }
354
+
355
+        gr_font->cwidth = font.cwidth;
356
+        gr_font->cheight = font.cheight;
333 357
     }
334 358
 
335 359
     // interpret the grayscale as alpha
336 360
     gr_font->texture->format = GGL_PIXEL_FORMAT_A_8;
337
-
338
-    gr_font->cwidth = gr_font->texture->width / 96;
339
-    gr_font->cheight = gr_font->texture->height;
340
-    gr_font->ascent = gr_font->cheight - 2;
341 361
 }
342 362
 
343 363
 int gr_init(void)

+ 1
- 1
minui/minui.h View File

@@ -37,7 +37,7 @@ void gr_fb_blank(bool blank);
37 37
 
38 38
 void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
39 39
 void gr_fill(int x1, int y1, int x2, int y2);
40
-int gr_text(int x, int y, const char *s);
40
+int gr_text(int x, int y, const char *s, int bold);
41 41
  void gr_texticon(int x, int y, gr_surface icon);
42 42
 int gr_measure(const char *s);
43 43
 void gr_font_size(int *x, int *y);

+ 0
- 1
recovery.cpp View File

@@ -704,7 +704,6 @@ prompt_and_wait(Device* device, int status) {
704 704
                 break;
705 705
 
706 706
             case Device::WIPE_CACHE:
707
-                ui->ShowText(false);
708 707
                 ui->Print("\n-- Wiping cache...\n");
709 708
                 erase_volume("/cache");
710 709
                 ui->Print("Cache wipe complete.\n");

BIN
res/images/font.png View File


+ 31
- 17
screen_ui.cpp View File

@@ -192,11 +192,9 @@ void ScreenRecoveryUI::draw_progress_locked()
192 192
     }
193 193
 }
194 194
 
195
-void ScreenRecoveryUI::draw_text_line(int row, const char* t) {
196
-  if (t[0] != '\0') {
197
-    gr_text(0, (row+1)*char_height-1, t);
198
-  }
199
-}
195
+#define C_HEADER  247,0,6
196
+#define C_MENU    0,106,157
197
+#define C_LOG     249,194,0
200 198
 
201 199
 // Redraw everything on the screen.  Does not flip pages.
202 200
 // Should only be called with updateMutex locked.
@@ -209,30 +207,46 @@ void ScreenRecoveryUI::draw_screen_locked()
209 207
         gr_color(0, 0, 0, 160);
210 208
         gr_fill(0, 0, gr_fb_width(), gr_fb_height());
211 209
 
210
+        int y = 0;
212 211
         int i = 0;
213 212
         if (show_menu) {
214
-            gr_color(64, 96, 255, 255);
215
-            gr_fill(0, (menu_top+menu_sel) * char_height,
216
-                    gr_fb_width(), (menu_top+menu_sel+1)*char_height+1);
213
+            gr_color(C_HEADER, 255);
217 214
 
218 215
             for (; i < menu_top + menu_items; ++i) {
216
+                if (i == menu_top) gr_color(C_MENU, 255);
217
+
219 218
                 if (i == menu_top + menu_sel) {
219
+                    // draw the highlight bar
220
+                    gr_fill(0, y-2, gr_fb_width(), y+char_height+2);
221
+                    // white text of selected item
220 222
                     gr_color(255, 255, 255, 255);
221
-                    draw_text_line(i, menu[i]);
222
-                    gr_color(64, 96, 255, 255);
223
+                    if (menu[i][0]) gr_text(4, y, menu[i], 1);
224
+                    gr_color(C_MENU, 255);
223 225
                 } else {
224
-                    draw_text_line(i, menu[i]);
226
+                    if (menu[i][0]) gr_text(4, y, menu[i], i < menu_top);
225 227
                 }
228
+                y += char_height+4;
226 229
             }
227
-            gr_fill(0, i*char_height+char_height/2-1,
228
-                    gr_fb_width(), i*char_height+char_height/2+1);
230
+            gr_color(C_MENU, 255);
231
+            y += 4;
232
+            gr_fill(0, y, gr_fb_width(), y+2);
233
+            y += 4;
229 234
             ++i;
230 235
         }
231 236
 
232
-        gr_color(255, 255, 0, 255);
233
-
234
-        for (; i < text_rows; ++i) {
235
-            draw_text_line(i, text[(i+text_top) % text_rows]);
237
+        gr_color(C_LOG, 255);
238
+
239
+        // display from the bottom up, until we hit the top of the
240
+        // screen, the bottom of the menu, or we've displayed the
241
+        // entire text buffer.
242
+        int ty;
243
+        int row = (text_top+text_rows-1) % text_rows;
244
+        for (int ty = gr_fb_height() - char_height, count = 0;
245
+             ty > y+2 && count < text_rows;
246
+             ty -= char_height, ++count) {
247
+            gr_text(4, ty, text[row], 0);
248
+            --row;
249
+            if (row < 0) row = text_rows-1;
236 250
         }
237 251
     }
238 252
 }

+ 1
- 2
screen_ui.h View File

@@ -76,7 +76,7 @@ class ScreenRecoveryUI : public RecoveryUI {
76 76
     bool pagesIdentical;
77 77
 
78 78
     static const int kMaxCols = 96;
79
-    static const int kMaxRows = 32;
79
+    static const int kMaxRows = 96;
80 80
 
81 81
     // Log text overlay, displayed when a magic key is pressed
82 82
     char text[kMaxRows][kMaxCols];
@@ -100,7 +100,6 @@ class ScreenRecoveryUI : public RecoveryUI {
100 100
     void draw_install_overlay_locked(int frame);
101 101
     void draw_background_locked(Icon icon);
102 102
     void draw_progress_locked();
103
-    void draw_text_line(int row, const char* t);
104 103
     void draw_screen_locked();
105 104
     void update_screen_locked();
106 105
     void update_progress_locked();