1+ /*
2+ * This file is part of Universal-Updater
3+ * Copyright (C) 2019-2021 Universal-Team
4+ * Copyright (C) 2025 Alvin Wong
5+ *
6+ * This program is free software: you can redistribute it and/or modify
7+ * it under the terms of the GNU General Public License as published by
8+ * the Free Software Foundation, either version 3 of the License, or
9+ * (at your option) any later version.
10+ *
11+ * This program is distributed in the hope that it will be useful,
12+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
13+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14+ * GNU General Public License for more details.
15+ *
16+ * You should have received a copy of the GNU General Public License
17+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
18+ *
19+ * Additional Terms 7.b and 7.c of GPLv3 apply to this file:
20+ * * Requiring preservation of specified reasonable legal notices or
21+ * author attributions in that material or in the Appropriate Legal
22+ * Notices displayed by works containing it.
23+ * * Prohibiting misrepresentation of the origin of that material,
24+ * or requiring that modified versions of such material be marked in
25+ * reasonable ways as different from the original version.
26+ */
27+
28+ #include " animation.hpp"
29+ #include " common.hpp"
30+ #include " overlay.hpp"
31+ #include " qrcodegen.h"
32+
33+ extern bool touching (touchPosition touch, Structs::ButtonPos button);
34+ static const Structs::ButtonPos backButton{ 4 , 0 , 24 , 24 };
35+
36+ static std::vector<std::string> wrapUrlLines (std::string_view url) {
37+ // Crudely line wrap the URL:
38+ std::vector<std::string> wrappedUrlLines;
39+ std::string line;
40+ size_t lastWrap = 0 ;
41+ for (size_t i = 0 ; i < url.size (); i++) {
42+ char c = url[i];
43+ line.push_back (c);
44+
45+ if (i - lastWrap < 30 ) continue ;
46+
47+ bool wrap = false ;
48+ switch (c) {
49+ case ' -'
50+ case ' /'
51+ case ' _'
52+ case ' ?'
53+ case ' ='
54+ case ' &'
55+ case ' '
56+ wrap = true ;
57+ break ;
58+ default :
59+ if (i - lastWrap >= 40 ) wrap = true ;
60+ break ;
61+ }
62+
63+ if (wrap) {
64+ if (wrappedUrlLines.size () >= 9 ) {
65+ line.append (" ..."
66+ break ;
67+ }
68+ wrappedUrlLines.emplace_back (std::move (line));
69+ lastWrap = i;
70+ }
71+ }
72+ if (!line.empty ()) wrappedUrlLines.emplace_back (std::move (line));
73+ return wrappedUrlLines;
74+ }
75+
76+ /* Show a QR Code URL. */
77+ void Overlays::ShowQrCodeUrl (const std::string &title, const std::string &url) {
78+
79+ std::unique_ptr<uint8_t []> qrcode = std::make_unique<uint8_t []>(qrcodegen_BUFFER_LEN_MAX);
80+ std::unique_ptr<uint8_t []> tempBuffer = std::make_unique<uint8_t []>(qrcodegen_BUFFER_LEN_MAX);
81+ bool ok = qrcodegen_encodeText (url.c_str (), tempBuffer.get (), qrcode.get (), qrcodegen_Ecc_LOW, qrcodegen_VERSION_MIN, qrcodegen_VERSION_MAX, qrcodegen_Mask_AUTO, true );
82+ if (!ok) {
83+ Msg::DisplayMsg (Lang::get (" QR_CODE_GEN_FAILED"
84+ return ;
85+ }
86+
87+ int size = qrcodegen_getSize (qrcode.get ());
88+ if (size <= 0 || size > 256 ) {
89+ Msg::DisplayMsg (Lang::get (" QR_CODE_GEN_FAILED"
90+ return ;
91+ }
92+
93+ C3D_Tex tex;
94+
95+ C3D_TexInit (&tex, 256 , 256 , GPU_TEXCOLOR::GPU_A8);
96+ C3D_TexSetFilter (&tex, GPU_NEAREST, GPU_NEAREST);
97+ C3D_TexSetWrap (&tex, GPU_CLAMP_TO_EDGE, GPU_CLAMP_TO_EDGE);
98+
99+ for (u32 x = 0 ; x < size; x++) {
100+ for (u32 y = 0 ; y < size; y++) {
101+ const u32 dstPos = ((((y >> 3 ) * (256 >> 3 ) + (x >> 3 )) << 6 ) +
102+ ((x & 1 ) | ((y & 1 ) << 1 ) | ((x & 2 ) << 1 ) | ((y & 2 ) << 2 ) |
103+ ((x & 4 ) << 2 ) | ((y & 4 ) << 3 )));
104+
105+ ((uint8_t *)tex.data )[dstPos] = qrcodegen_getModule (qrcode.get (), x, y) ? 255 : 0 ;
106+ }
107+ }
108+
109+ constexpr int border = 4 ;
110+ int scale = 240 / (size + border * 2 );
111+ int drawSize = size * scale;
112+ int drawX = (400 - drawSize) / 2 ;
113+ int drawY = (240 - drawSize) / 2 ;
114+ int drawBorder = border * scale;
115+
116+ C2D_Image qrImage;
117+ Tex3DS_SubTexture subtex{(u16 )drawSize, (u16 )drawSize, 0 .0f , 1 .0f , size / 256 .f , 1 .0f - (size / 256 .f )};
118+ qrImage.tex = &tex;
119+ qrImage.subtex = &subtex;
120+ C2D_Tint tint{
121+ .color = BLACK,
122+ .blend = 1 .f ,
123+ };
124+ C2D_ImageTint imageTint{
125+ .corners = {tint, tint, tint, tint},
126+ };
127+
128+ std::vector<std::string> wrappedUrlLines = wrapUrlLines (url);
129+
130+ bool doOut = false ;
131+
132+ while (!doOut) {
133+ Gui::clearTextBufs ();
134+ C3D_FrameBegin (C3D_FRAME_SYNCDRAW);
135+ C2D_TargetClear (Top, TRANSPARENT);
136+ C2D_TargetClear (Bottom, TRANSPARENT);
137+
138+ GFX::DrawTop ();
139+
140+ C2D_DrawRectSolid (drawX - drawBorder, drawY - drawBorder, 0 .75f , drawSize + drawBorder * 2 , drawSize + drawBorder * 2 , WHITE);
141+ C2D_DrawImageAt (qrImage, drawX, drawY, 1 .f , &imageTint);
142+
143+ Animation::QueueEntryDone ();
144+ GFX::DrawBottom ();
145+ Gui::Draw_Rect (0 , 0 , 320 , 25 , UIThemes->BarColor ());
146+ Gui::Draw_Rect (0 , 25 , 320 , 1 , UIThemes->BarOutline ());
147+ GFX::DrawIcon (sprites_arrow_idx, backButton.x , backButton.y , UIThemes->TextColor ());
148+ Gui::DrawStringCentered (0 , 2 , 0.6 , UIThemes->TextColor (), title, 310 , 0 , font);
149+
150+ int y = 34 ;
151+ for (const std::string &urlLine : wrappedUrlLines) {
152+ Gui::DrawStringCentered (0 , y, 0 .6f , UIThemes->TextColor (), urlLine, 312 , 0 , font);
153+ y += 20 ;
154+ if (y >= 240 ) break ;
155+ }
156+
157+ C3D_FrameEnd (0 );
158+
159+ hidScanInput ();
160+ touchPosition touch;
161+ hidTouchRead (&touch);
162+ Animation::HandleQueueEntryDone ();
163+ if ((hidKeysDown () & KEY_START) || (hidKeysDown () & KEY_B) || (hidKeysDown () & KEY_A) || (hidKeysDown () & KEY_TOUCH && touching (touch, backButton))) doOut = true ;
164+ }
165+
166+ C3D_TexDelete (&tex);
167+ }
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