From 815361aec2a8fb3e3bece5ab27993ae87244ecbb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=B6nke=20Holz?= <sholz8530@gmail.com>
Date: Sun, 25 Aug 2024 21:50:27 +0200
Subject: [PATCH] Kernel/aarch64: Remove BootPPMParser.{cpp,h}

The BootPPMParser has been unused since 0acd87954b.
---
 Kernel/Arch/aarch64/BootPPMParser.cpp   | 111 ------------------------
 Kernel/Arch/aarch64/BootPPMParser.h     |  38 --------
 Kernel/Arch/aarch64/RPi/Framebuffer.cpp |   1 -
 Kernel/CMakeLists.txt                   |   1 -
 Meta/gn/secondary/Kernel/BUILD.gn       |   1 -
 5 files changed, 152 deletions(-)
 delete mode 100644 Kernel/Arch/aarch64/BootPPMParser.cpp
 delete mode 100644 Kernel/Arch/aarch64/BootPPMParser.h

diff --git a/Kernel/Arch/aarch64/BootPPMParser.cpp b/Kernel/Arch/aarch64/BootPPMParser.cpp
deleted file mode 100644
index b8fe4f25407..00000000000
--- a/Kernel/Arch/aarch64/BootPPMParser.cpp
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * Copyright (c) 2021, Marcin Undak <mcinek@gmail.com>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
-
-#include "BootPPMParser.h"
-
-namespace Kernel {
-
-BootPPMParser::BootPPMParser(u8 const* buffer, u32 buffer_size)
-{
-    m_cursor = reinterpret_cast<char const*>(buffer);
-    m_buffer_end = m_cursor + buffer_size;
-}
-
-bool BootPPMParser::parse()
-{
-    if (!check_position()) {
-        return false;
-    }
-    if (!parse_magic()) {
-        return false;
-    }
-    if (!parse_new_line()) {
-        return false;
-    }
-    if (!parse_comment()) {
-        return false;
-    }
-    if (!parse_integer(image.width)) {
-        return false;
-    }
-    if (!parse_integer(image.height)) {
-        return false;
-    }
-    u32 max_color_value;
-    if (!parse_integer(max_color_value) || max_color_value != 255) {
-        return false;
-    }
-
-    image.pixel_data = reinterpret_cast<u8 const*>(m_cursor);
-
-    return true;
-}
-
-bool BootPPMParser::check_position() const
-{
-    if (m_cursor >= m_buffer_end) {
-        return false;
-    }
-    return true;
-}
-
-bool BootPPMParser::parse_magic()
-{
-    if (m_cursor[0] != 'P' || m_cursor[1] != '6') {
-        return false;
-    }
-    m_cursor += 2;
-
-    return check_position();
-}
-
-bool BootPPMParser::parse_new_line()
-{
-    if (*m_cursor != '\n') {
-        return false;
-    }
-    ++m_cursor;
-
-    return check_position();
-}
-
-bool BootPPMParser::parse_comment()
-{
-    if (*m_cursor == '#') {
-        // Skip to the next new line character
-        while (check_position() && *m_cursor != '\n') {
-            ++m_cursor;
-        }
-        ++m_cursor;
-    }
-
-    return check_position();
-}
-
-bool BootPPMParser::parse_integer(u32& value)
-{
-    auto begin = m_cursor;
-    while (check_position() && *m_cursor != ' ' && *m_cursor != '\n') {
-        ++m_cursor;
-    }
-    auto end = m_cursor;
-    ++m_cursor;
-
-    if (!check_position()) {
-        return false;
-    }
-
-    value = 0;
-    u32 multiplier = 1;
-    while (--end >= begin) {
-        value += multiplier * (*end - '0');
-        multiplier *= 10;
-    }
-
-    return true;
-}
-
-}
diff --git a/Kernel/Arch/aarch64/BootPPMParser.h b/Kernel/Arch/aarch64/BootPPMParser.h
deleted file mode 100644
index 4c007964bcd..00000000000
--- a/Kernel/Arch/aarch64/BootPPMParser.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright (c) 2021, Marcin Undak <mcinek@gmail.com>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
-
-#pragma once
-
-#include <AK/Types.h>
-
-namespace Kernel {
-
-// Quick parser for .ppm image format (raw PortablePixMap)
-// This is much simpler version than userland implementation in PPMLoader.cpp
-class BootPPMParser {
-public:
-    struct {
-        u32 width = 0;
-        u32 height = 0;
-        u8 const* pixel_data = nullptr;
-    } image;
-
-    BootPPMParser(u8 const* buffer, u32 buffer_size);
-
-    bool parse();
-
-private:
-    char const* m_cursor;
-    char const* m_buffer_end;
-
-    bool check_position() const;
-    bool parse_magic();
-    bool parse_new_line();
-    bool parse_comment();
-    bool parse_integer(u32& value);
-};
-
-}
diff --git a/Kernel/Arch/aarch64/RPi/Framebuffer.cpp b/Kernel/Arch/aarch64/RPi/Framebuffer.cpp
index 7fb4c5a96c1..35611c70373 100644
--- a/Kernel/Arch/aarch64/RPi/Framebuffer.cpp
+++ b/Kernel/Arch/aarch64/RPi/Framebuffer.cpp
@@ -5,7 +5,6 @@
  */
 
 #include <AK/Format.h>
-#include <Kernel/Arch/aarch64/BootPPMParser.h>
 #include <Kernel/Arch/aarch64/RPi/Framebuffer.h>
 #include <Kernel/Arch/aarch64/RPi/FramebufferMailboxMessages.h>
 #include <Kernel/Boot/BootInfo.h>
diff --git a/Kernel/CMakeLists.txt b/Kernel/CMakeLists.txt
index 6588c1eb98a..75378b7290b 100644
--- a/Kernel/CMakeLists.txt
+++ b/Kernel/CMakeLists.txt
@@ -492,7 +492,6 @@ elseif("${SERENITY_ARCH}" STREQUAL "aarch64")
 
         Arch/aarch64/archctl.cpp
         Arch/aarch64/boot.S
-        Arch/aarch64/BootPPMParser.cpp
         Arch/aarch64/CPUID.cpp
         Arch/aarch64/CurrentTime.cpp
         Arch/aarch64/Dummy.cpp
diff --git a/Meta/gn/secondary/Kernel/BUILD.gn b/Meta/gn/secondary/Kernel/BUILD.gn
index 394452e6d4b..e4ad419f584 100644
--- a/Meta/gn/secondary/Kernel/BUILD.gn
+++ b/Meta/gn/secondary/Kernel/BUILD.gn
@@ -356,7 +356,6 @@ source_set("arch_sources") {
     deps = [ ":aarch64_no_mmu" ]
     sources = [
       "Arch/Processor.cpp",
-      "Arch/aarch64/BootPPMParser.cpp",
       "Arch/aarch64/CPUID.cpp",
       "Arch/aarch64/CurrentTime.cpp",
       "Arch/aarch64/Dummy.cpp",