96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/*
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* This file is part of Luma3DS
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* Copyright (C) 2016 Aurora Wright, TuxSH
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Additional Terms 7.b of GPLv3 applies to this file: Requiring preservation of specified
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* reasonable legal notices or author attributions in that material or in the Appropriate Legal
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* Notices displayed by works containing it.
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*/
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/*
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* Code to print to the screen by mid-kid @CakesFW
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* https://github.com/mid-kid/CakesForeveryWan/
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*/
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#include "draw.h"
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#include "screen.h"
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#include "utils.h"
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#include "fs.h"
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#include "font.h"
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static inline int strlen(const char *string)
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{
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char *stringEnd = (char *)string;
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while(*stringEnd) stringEnd++;
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return stringEnd - string;
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}
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bool loadSplash(void)
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{
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initScreens();
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//Don't delay boot if no splash image is on the SD
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if(fileRead(fb->top_left, "/luma/splash.bin") +
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fileRead(fb->bottom, "/luma/splashbottom.bin") != 0)
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return true;
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return false;
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}
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void drawCharacter(char character, int posX, int posY, u32 color)
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{
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u8 *const select = fb->top_left;
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for(int y = 0; y < 8; y++)
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{
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char charPos = font[character * 8 + y];
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for(int x = 7; x >= 0; x--)
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if ((charPos >> x) & 1)
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{
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int screenPos = (posX * SCREEN_TOP_HEIGHT * 3 + (SCREEN_TOP_HEIGHT - y - posY - 1) * 3) + (7 - x) * 3 * SCREEN_TOP_HEIGHT;
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select[screenPos] = color >> 16;
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select[screenPos + 1] = color >> 8;
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select[screenPos + 2] = color;
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}
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}
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}
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int drawString(const char *string, int posX, int posY, u32 color)
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{
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for(int i = 0, line_i = 0; i < strlen(string); i++, line_i++)
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{
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if(string[i] == '\n')
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{
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posY += SPACING_Y;
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line_i = 0;
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i++;
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}
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else if(line_i >= (SCREEN_TOP_WIDTH - posX) / SPACING_X)
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{
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// Make sure we never get out of the screen.
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posY += SPACING_Y;
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line_i = 2; //Little offset so we know the same string continues.
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if(string[i] == ' ') i++; //Spaces at the start look weird
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}
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drawCharacter(string[i], posX + line_i * SPACING_X, posY, color);
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}
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return posY;
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} |