mirror of
https://github.com/pret/pokeemerald.git
synced 2026-05-09 20:48:35 -05:00
df02d49e9b
'INCGFX' is like 'INCBIN' except that it specifies the arguments to pass to 'gbagfx' which alleviates the user-unfriendliness caused by catch-all rules. Specifically, users frequently forget to add to 'spritesheet_rules.mk' when adding object event graphics, and then the built '.4bpp' file is not invalidated when the add their rule so they have to 'touch' the source file or similar. The built artifacts are placed in 'build/assets'.
426 lines
9.2 KiB
C++
426 lines
9.2 KiB
C++
// Copyright(c) 2017 YamaArashi
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#include <cstring>
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#include "c_file.h"
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CFile::CFile(std::string path)
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{
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m_path = path;
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FILE *fp = std::fopen(path.c_str(), "rb");
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if (fp == NULL)
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FATAL_ERROR("Failed to open \"%s\" for reading.\n", path.c_str());
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std::fseek(fp, 0, SEEK_END);
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m_size = std::ftell(fp);
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if (m_size < 0)
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FATAL_ERROR("File size of \"%s\" is less than zero.\n", path.c_str());
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else if (m_size == 0)
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return; // Empty file
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m_buffer = new char[m_size + 1];
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m_buffer[m_size] = 0;
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std::rewind(fp);
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if (std::fread(m_buffer, m_size, 1, fp) != 1)
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FATAL_ERROR("Failed to read \"%s\".\n", path.c_str());
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std::fclose(fp);
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m_pos = 0;
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m_lineNum = 1;
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}
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CFile::~CFile()
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{
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if (m_size > 0) delete[] m_buffer;
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}
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void CFile::FindIncbins()
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{
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char stringChar = 0;
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while (m_pos < m_size)
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{
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if (stringChar)
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{
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if (m_buffer[m_pos] == stringChar)
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{
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m_pos++;
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stringChar = 0;
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}
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else if (m_buffer[m_pos] == '\\' && m_buffer[m_pos + 1] == stringChar)
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{
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m_pos += 2;
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}
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else
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{
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if (m_buffer[m_pos] == '\n')
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m_lineNum++;
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m_pos++;
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}
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}
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else
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{
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SkipWhitespace();
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CheckInclude();
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CheckIncbin();
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CheckIncgfx();
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if (m_pos >= m_size)
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break;
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char c = m_buffer[m_pos++];
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if (c == '\n')
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m_lineNum++;
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else if (c == '"')
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stringChar = '"';
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else if (c == '\'')
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stringChar = '\'';
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else if (c == 0)
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FATAL_INPUT_ERROR("unexpected null character");
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}
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}
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}
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bool CFile::ConsumeHorizontalWhitespace()
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{
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if (m_buffer[m_pos] == '\t' || m_buffer[m_pos] == ' ')
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{
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m_pos++;
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return true;
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}
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return false;
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}
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bool CFile::ConsumeNewline()
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{
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if (m_buffer[m_pos] == '\n')
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{
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m_pos++;
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m_lineNum++;
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return true;
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}
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if (m_buffer[m_pos] == '\r' && m_buffer[m_pos + 1] == '\n')
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{
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m_pos += 2;
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m_lineNum++;
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return true;
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}
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return false;
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}
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bool CFile::ConsumeComment()
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{
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if (m_buffer[m_pos] == '/' && m_buffer[m_pos + 1] == '*')
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{
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m_pos += 2;
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while (m_buffer[m_pos] != '*' || m_buffer[m_pos + 1] != '/')
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{
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if (m_buffer[m_pos] == 0)
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return false;
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if (!ConsumeNewline())
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m_pos++;
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}
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m_pos += 2;
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return true;
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}
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else if (m_buffer[m_pos] == '/' && m_buffer[m_pos + 1] == '/')
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{
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m_pos += 2;
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while (!ConsumeNewline())
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{
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if (m_buffer[m_pos] == 0)
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return false;
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m_pos++;
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}
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return true;
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}
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return false;
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}
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void CFile::SkipWhitespace()
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{
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while (ConsumeHorizontalWhitespace() || ConsumeNewline() || ConsumeComment())
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;
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}
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bool CFile::CheckIdentifier(const std::string& ident)
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{
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unsigned int i;
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for (i = 0; i < ident.length() && m_pos + i < (unsigned)m_size; i++)
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if (ident[i] != m_buffer[m_pos + i])
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return false;
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return (i == ident.length());
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}
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void CFile::CheckInclude()
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{
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if (m_buffer[m_pos] != '#')
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return;
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std::string ident = "#include";
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if (!CheckIdentifier(ident))
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{
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return;
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}
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m_pos += ident.length();
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ConsumeHorizontalWhitespace();
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std::string path = ReadPath();
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if (!path.empty()) {
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m_includes.emplace(path);
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}
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}
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void CFile::CheckIncbin()
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{
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// Optimization: assume most lines are not incbins
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if (!(m_buffer[m_pos+0] == 'I'
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&& m_buffer[m_pos+1] == 'N'
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&& m_buffer[m_pos+2] == 'C'
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&& m_buffer[m_pos+3] == 'B'
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&& m_buffer[m_pos+4] == 'I'
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&& m_buffer[m_pos+5] == 'N'
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&& m_buffer[m_pos+6] == '_'))
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{
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return;
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}
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std::string idents[3] = { "INCBIN_U8", "INCBIN_U16", "INCBIN_U32" };
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int incbinType = -1;
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for (int i = 0; i < 3; i++)
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{
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if (CheckIdentifier(idents[i]))
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{
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incbinType = i;
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break;
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}
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}
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if (incbinType == -1)
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return;
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long oldPos = m_pos;
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long oldLineNum = m_lineNum;
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m_pos += idents[incbinType].length();
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SkipWhitespace();
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if (m_buffer[m_pos] != '(')
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{
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m_pos = oldPos;
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m_lineNum = oldLineNum;
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return;
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}
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m_pos++;
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while (true)
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{
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SkipWhitespace();
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std::string path = ReadPath();
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SkipWhitespace();
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m_incbins.emplace(path);
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if (m_buffer[m_pos] != ',')
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break;
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m_pos++;
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}
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if (m_buffer[m_pos] != ')')
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FATAL_INPUT_ERROR("expected ')'");
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m_pos++;
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}
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void CFile::CheckIncgfx()
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{
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// Optimization: assume most lines are not incgfxs
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if (!(m_buffer[m_pos+0] == 'I'
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&& m_buffer[m_pos+1] == 'N'
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&& m_buffer[m_pos+2] == 'C'
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&& m_buffer[m_pos+3] == 'G'
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&& m_buffer[m_pos+4] == 'F'
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&& m_buffer[m_pos+5] == 'X'
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&& m_buffer[m_pos+6] == '_'))
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{
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return;
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}
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std::string idents[3] = { "INCGFX_U8", "INCGFX_U16", "INCGFX_U32" };
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int incgfxType = -1;
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for (int i = 0; i < 3; i++)
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{
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if (CheckIdentifier(idents[i]))
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{
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incgfxType = i;
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break;
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}
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}
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if (incgfxType == -1)
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return;
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long oldPos = m_pos;
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long oldLineNum = m_lineNum;
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m_pos += idents[incgfxType].length();
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SkipWhitespace();
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if (m_buffer[m_pos] != '(')
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{
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m_pos = oldPos;
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m_lineNum = oldLineNum;
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return;
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}
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m_pos++;
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SkipWhitespace();
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std::string path = ReadPath();
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SkipWhitespace();
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if (m_buffer[m_pos] != ',')
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FATAL_INPUT_ERROR("expected ','");
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m_pos++;
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SkipWhitespace();
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std::string extensions = ReadString();
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SkipWhitespace();
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std::string arguments;
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if (m_buffer[m_pos] == ',')
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{
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m_pos++;
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SkipWhitespace();
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arguments = ReadString();
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SkipWhitespace();
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if (m_buffer[m_pos] != ')')
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FATAL_INPUT_ERROR("expected ')'");
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m_pos++;
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}
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else if (m_buffer[m_pos] == ')')
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{
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m_pos++;
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}
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else
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{
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FATAL_INPUT_ERROR("expected ')' or ','");
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}
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Incgfx incgfx = { path, extensions, arguments };
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m_incgfxs.emplace(incgfx);
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}
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std::string CFile::ReadPath()
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{
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if (m_buffer[m_pos] != '"')
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{
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if (m_buffer[m_pos] == '<')
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{
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return std::string();
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}
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FATAL_INPUT_ERROR("expected '\"' or '<'");
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}
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m_pos++;
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long startPos = m_pos;
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while (m_buffer[m_pos] != '"')
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{
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if (m_buffer[m_pos] == 0)
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{
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if (m_pos >= m_size)
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FATAL_INPUT_ERROR("unexpected EOF in path string");
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else
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FATAL_INPUT_ERROR("unexpected null character in path string");
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}
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if (m_buffer[m_pos] == '\r' || m_buffer[m_pos] == '\n')
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FATAL_INPUT_ERROR("unexpected end of line character in path string");
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if (m_buffer[m_pos] == '\\')
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FATAL_INPUT_ERROR("unexpected escape in path string");
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m_pos++;
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}
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m_pos++;
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return std::string(m_buffer + startPos, m_pos - 1 - startPos);
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}
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std::string CFile::ReadString()
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{
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if (m_buffer[m_pos] != '"')
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FATAL_INPUT_ERROR("expected '\"', got: '%c'", m_buffer[m_pos]);
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m_pos++;
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long startPos = m_pos;
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while (m_buffer[m_pos] != '"')
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{
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if (m_buffer[m_pos] == 0)
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{
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if (m_pos >= m_size)
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FATAL_INPUT_ERROR("expected EOF in string");
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else
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FATAL_INPUT_ERROR("unexpected null character in string");
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}
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if (m_buffer[m_pos] == '\r' || m_buffer[m_pos] == '\n')
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FATAL_INPUT_ERROR("unexpected end of line character in string");
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if (m_buffer[m_pos] == '\\')
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FATAL_INPUT_ERROR("unexpected escape in string");
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m_pos++;
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}
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m_pos++;
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return std::string(m_buffer + startPos, m_pos - 1 - startPos);
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}
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