mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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127 lines
4.2 KiB
C++
127 lines
4.2 KiB
C++
/*
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* Copyright (c) Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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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#include <exosphere.hpp>
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#include "fatal_display.hpp"
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#include "fatal_print.hpp"
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namespace ams::secmon::fatal {
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namespace {
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#include "fatal_font.inc"
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constexpr inline const u32 TextColor = 0xFFA0A0A0;
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constexpr inline const size_t ConsoleWidth = FrameBufferWidth / FontWidth;
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constexpr inline const size_t ConsoleHeight = FrameBufferHeight / FontHeight;
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constinit u32 *g_frame_buffer = nullptr;
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constinit size_t g_col = 1;
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constinit size_t g_row = 0;
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void SetPixel(size_t x, size_t y, u32 color) {
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g_frame_buffer[(FrameBufferWidth - x) * FrameBufferHeight + y] = color;
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}
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void PutCarriageReturn() {
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g_col = 1;
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}
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void PutNewLine() {
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g_col = 1;
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++g_row;
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/* TODO: Support scrolling? */
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}
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void PutCharImpl(const char c) {
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/* Get the character data for the font. */
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const u8 * cdata = FontData + c * (FontHeight * util::DivideUp(FontWidth, BITSIZEOF(u8)));
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/* Determine where to start drawing. */
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const size_t x = g_col * FontWidth;
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const size_t y = g_row * FontHeight;
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for (size_t cur_y = 0; cur_y < FontHeight; ++cur_y) {
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size_t cur_x = 0;
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int wbits = FontWidth;
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while (wbits > 0) {
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const auto bits = *(cdata++);
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SetPixel(x + cur_x + 0, y + cur_y, FontDrawTable[(bits >> 4) & 0xF][0] & TextColor);
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SetPixel(x + cur_x + 1, y + cur_y, FontDrawTable[(bits >> 4) & 0xF][1] & TextColor);
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SetPixel(x + cur_x + 2, y + cur_y, FontDrawTable[(bits >> 4) & 0xF][2] & TextColor);
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SetPixel(x + cur_x + 3, y + cur_y, FontDrawTable[(bits >> 4) & 0xF][3] & TextColor);
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SetPixel(x + cur_x + 4, y + cur_y, FontDrawTable[(bits >> 0) & 0xF][0] & TextColor);
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SetPixel(x + cur_x + 5, y + cur_y, FontDrawTable[(bits >> 0) & 0xF][1] & TextColor);
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SetPixel(x + cur_x + 6, y + cur_y, FontDrawTable[(bits >> 0) & 0xF][2] & TextColor);
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SetPixel(x + cur_x + 7, y + cur_y, FontDrawTable[(bits >> 0) & 0xF][3] & TextColor);
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cur_x += BITSIZEOF(u8);
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wbits -= BITSIZEOF(u8);
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}
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}
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}
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void PutChar(const char c) {
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switch (c) {
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case '\r':
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PutCarriageReturn();
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break;
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case '\n':
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PutNewLine();
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break;
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default:
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PutCharImpl(c);
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if ((++g_col) >= ConsoleWidth) {
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PutNewLine();
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}
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}
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}
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}
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void InitializeConsole(u32 *frame_buffer) {
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/* Setup the console variables. */
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g_frame_buffer = frame_buffer;
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g_col = 1;
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g_row = 0;
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/* Clear the console. */
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std::memset(g_frame_buffer, 0, FrameBufferSize);
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}
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void Print(const char *fmt, ...) {
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/* Generate the string. */
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char log_str[1_KB];
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{
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std::va_list vl;
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va_start(vl, fmt);
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util::TVSNPrintf(log_str, sizeof(log_str), fmt, vl);
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va_end(vl);
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}
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/* Print each character. */
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const size_t len = std::strlen(log_str);
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for (size_t i = 0; i < len; ++i) {
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PutChar(log_str[i]);
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}
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/* Flush the console. */
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hw::FlushDataCache(g_frame_buffer, FrameBufferSize);
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}
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}
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