Unexpected full ascii chars

[sebastienroy]

Hello, I've just tested the full ascii chars feature.

I tried to display following characters: \xe8 \xe9 \xea \xeb This should result to the following display: è é ê ë Instead I got some unexpected greek letters

[sebastienroy]

Hello, I've just understand that you used the DOS code page as the ascii extension, and not the Windows-1252 characters. It doesn't matter, I will code a little conversion routine. I only need latin characters, such a 'é', 'ê', 'à', etc. These characters are present in both charsets and a mapping is possible.

[FunMiles]

@sebastienroy Do the Windoes-1252 encoding of those character match the codepoints for them in UTF?

[Harbys]

@FunMiles They might not as these fonts were generated using codepages, more specifically "Codepage 437 United States".

[FunMiles]

@Harbys, glad to hear from you. I am integrating your library inside a C++20 coroutine-based asynchronous library for the Raspberry Pi Pico. How did you generate the .h with the fonts? I have not played with text yet, but drawing lines is working. I think I'll contribute some line-drawing routines as well. I am going to get text running today hopefully. The code is not yet pushed on github but will be soon: https://github.com/FunMiles/PicoAsync

PS: I have added the code and a demo for a 128x32 display.

[Harbys]

I generated font files from files like these I wanted to create a repo with a python script I used, but can't find it. It was a crude simple script. If I find some spare time, I'll recreate a similar script and upload it

[sebastienroy]

Hello,

I've try to map all the character I could map. Of course it was not possible for all of them. Here is the result: I hope it can help

CodePage437				Windows-1252
DEC	HEX		Description	DEC	HEX
128	80	Ç	Upper case C with cedilla	199	C7
129	81	ü	Lower case u with diaeresis	252	FC
130	82	é	Lower case e with acute	233	E9
131	83	â	Lower case a with circumflex	226	E2
132	84	ä	Lower case a with diaeresis	228	E4
133	85	à	Lower case a with grave	224	E0
134	86	å	Lower case a with ring above	229	E5
135	87	ç	Lower case c with cedilla	231	E7
136	88	ê	Lower case e with circumflex	234	EA
137	89	ë	Lower case e with diaeresis	235	EB
138	8A	è	Lower case e with grave	232	E8
139	8B	ï	Lower case i with diaeresis	239	EF
140	8C	î	Lower case i with circumflex	238	EE
141	8D	ì	Lower case i with grave	236	EC
142	8E	Ä	Upper case A with diaeresis	196	C4
143	8F	Å	Upper case A with ring above	197	C5
144	90	É	Upper case E with acute	201	C9
145	91	æ	Lower case ae	230	E6
146	92	Æ	Upper case AE	198	C6
147	93	ô	Lower case o with circumflex	244	F4
148	94	ö	Lower case o with diaeresis	246	F6
149	95	ò	Lower case o with grave	242	F2
150	96	û	Lower case u with circumflex	251	FB
151	97	ù	Lower case u with grave	249	F9
152	98	ÿ	Lower case y with diaeresis	255	FF
153	99	Ö	Upper case O with diaeresis	214	D6
154	9A	Ü	Upper case U with diaeresis	220	DC
155	9B	¢	Cent sign	162	A2
156	9C	£	Pound sign	163	A3
157	9D	¥	Yen sign	165	A5
158	9E		Peseta sign
159	9F	ƒ	Lower case f with hook	131	83
160	A0	á	Lower case a with acute	225	E1
161	A1	í	Lower case i with acute	237	ED
162	A2	ó	Lower case o with acute	243	F3
163	A3	ú	Lower case u with acute	250	FA
164	A4	ñ	Lower case n with tilde	241	F1
165	A5	Ñ	Upper case N with tilde	209	D1
166	A6	ª	Feminine ordinal indicator	170	AA
167	A7	º	Masculine ordinal indicator	186	BA
168	A8	¿	Inverted question mark	191	BF
169	A9		Reversed not sign
170	AA	¬	Not sign	172	AC
171	AB	½	Vulgar fraction one half	189	BD
172	AC	¼	Vulgar fraction one quarter	188	BC
173	AD	¡	Inverted exclamation mark	161	A1
174	AE	«	Left-pointing double angle quotation mark	171	AB
175	AF	»	Right-pointing double angle quotation mark	187	BB
176	B0		Light shade
177	B1		Medium shade
178	B2		Dark shade
179	B3		Box drawings light vertical
180	B4		Box drawings light vertical and left
181	B5		Box drawings vertical single and left double
182	B6		Box drawings vertical double and left single
183	B7		Box drawings down double and left single
184	B8		Box drawings down single and left double
185	B9		Box drawings double vertical and left
186	BA		Box drawings double vertical
187	BB		Box drawings double down and left
188	BC		Box drawings double up and left
189	BD		Box drawings up double and left single
190	BE		Box drawings up single and left double
191	BF		Box drawings light down and left
192	C0		Box drawings light up and right
193	C1		Box drawings light up and horizontal
194	C2		Box drawings light down and horizontal
195	C3		Box drawings light vertical and right
196	C4		Box drawings light horizontal
197	C5		Box drawings light vertical and horizontal
198	C6		Box drawings vertical single and right double
199	C7		Box drawings vertical double and right single
200	C8		Box drawings double up and right
201	C9		Box drawings double down and right
202	CA		Box drawings double up and horizontal
203	CB		Box drawings double down and horizontal
204	CC		Box drawings double vertical and right
205	CD		Box drawings double horizontal
206	CE		Box drawings double vertical and horizontal
207	CF		Box drawings up single and horizontal double
208	D0		Box drawings up double and horizontal single
209	D1		Box drawings down single and horizontal double
210	D2		Box drawings down double and horizontal single
211	D3		Box drawings up double and right single
212	D4		Box drawings up single and right double
213	D5		Box drawings down single and right double
214	D6		Box drawings down double and right single
215	D7		Box drawings vertical double and horizontal single
216	D8		Box drawings vertical single and horizontal double
217	D9		Box drawings light up and left
218	DA		Box drawings light down and right
219	DB		Full block
220	DC		Lower half block
221	DD		Left half block
222	DE		Right half block
223	DF		Upper half block
224	E0		Greek lower case alpha
225	E1	ß	Lower case sharp s	223	DF
226	E2		Greek upper case letter gamma
227	E3		Greek lower case pi
228	E4		Greek upper case letter sigma
229	E5		Greek lower case sigma
230	E6	µ	Micro sign	181	B5
231	E7		Greek lower case tau
232	E8		Greek upper case letter phi
233	E9		Greek upper case letter theta
234	EA		Greek upper case letter omega
235	EB		Greek lower case delta
236	EC		Infinity
237	ED		Greek lower case phi
238	EE		Greek lower case epsilon
239	EF		Intersection
240	F0		Identical to
241	F1	±	Plus-minus sign	177	B1
242	F2		Greater-than or equal to
243	F3		Less-than or equal to
244	F4		Top half integral
245	F5		Bottom half integral
246	F6	÷	Division sign	247	F7
247	F7		Almost equal to
248	F8	°	Degree sign	176	B0
249	F9	•	Bullet operator	149	95
250	FA	·	Middle dot	183	B7
251	FB		Square root
252	FC		Superscript lower case n
253	FD	²	Superscript two	178	B2
254	FE		Black square
255	FF		No-break space	160	A0