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subrepo: subdir: "ZAPDTR" merged: "a53a53ea4" upstream: origin: "https://github.com/HarbourMasters/ZAPDTR.git" branch: "master" commit: "a53a53ea4" git-subrepo: version: "0.4.1" origin: "???" commit: "???"
169 lines
8.7 KiB
Markdown
169 lines
8.7 KiB
Markdown
# ZAPD: Zelda Asset Processor for Decomp
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## Compiling
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### Dependencies
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ZAPD needs a compiler with C++17 support.
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ZAPD has the following library dependencies:
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- `libpng`
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In a Debian/Ubuntu based environment, those could be installed with the following command:
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```bash
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sudo apt install libpng-dev
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```
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On a Mac, you will need to install libpng with Homebrew or MacPorts; we currently only support Homebrew. You can run
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```bash
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brew install libpng
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```
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to install it via Homebrew.
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### Building
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#### Linux / *nix
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ZAPD uses the clasic `Makefile` approach. To build just run `make` (or even better `make -j` for faster compilations).
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You can configure a bit your ZAPD build with the following options:
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- `OPTIMIZATION_ON`: If set to `0` optimizations will be disabled (compile with `-O0`). Any other value compiles with `-O2`. Defaults to `1`.
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- `ASAN`: If it is set to a non-zero then ZAPD will be compiled with Address Sanitizer enabled (`-fsanitize=address`). Defaults to `0`.
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- `DEPRECATION_ON`: If it is set to a zero then deprecation warnings will be disabled. Defaults to `1`.
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- `DEBUG`: If non-zero, ZAPD will be compiled in _development mode_. This implies the following:
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- Debugging symbols enabled (`-g3`). They are disabled by default.
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- `OPTIMIZATION_ON=0`: Disables optimizations (`-O0`).
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- `DEPRECATION_ON=0`: Disables deprecation warnings.
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- `LLD=1`: builds with the LLVM linker `ld.lld` instead of the system default.
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As an example, if you want to build ZAPD with optimizations disabled and use the address sanitizer, you could use the following command:
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```bash
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make -j OPTIMIZATION_ON=0 ASAN=1
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```
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#### Windows
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This repository contains `vcxproj` files for compiling under Visual Studio environments. See `ZAPD/ZAPD.vcxproj`.
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## Invoking ZAPD
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ZAPD needs a _File parsing mode_ to be passed as first parameter. The options are:
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- `e`: "Extraction" mode.
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- In this mode, ZAPD expects a XML file as input, a folder as ouput and a path to the baserom files.
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- ZAPD will read the XML and use it as a guide to extract the contents of the specified asset file from the baserom folder.
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- For more info of the format of those XMLs, see the [ZAPD extraction XML reference](docs/zapd_extraction_xml_reference.md).
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- `bsf`: "Build source file" mode.
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- This is an experimental mode.
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- It was going to be used to let you have XMLs that aren't just for extraction. Might get used, might not. Still need to experiment on that.
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- `btex`: "Build texture" mode.
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- In this mode, ZAPD expects a PNG file as input, a filename as ouput and a texture type parameter (`-tt`).
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- ZAPD will try to convert the given PNG into the contents of a `uint64_t` C array.
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- `bren`: "Build (render) background" mode.
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- In this mode, ZAPD expects a JPG file as input and a filename as ouput.
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- ZAPD will try to convert the given JPG into the contents of a `uint64_t` C array.
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- `blb`: "Build blob" mode.
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- In this mode, ZAPD expects a BIN file as input and a filename as ouput.
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- ZAPD will try to convert the given BIN into the contents of a `uint8_t` C array.
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- `bovl`: "Build overlay" mode.
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- In this mode, ZAPD expects an overlay C file as input, a filename as ouput and an overlay configuration path (`-cfg`).
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- ZAPD will generate a reloc `.s` file.
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ZAPD also accepts the following list of extra parameters:
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- `-i PATH` / `--inputpath PATH`: Set input path.
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- `-o PATH` / `--outputpath PATH`: Set output path.
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- `-b PATH` / `--baserompath`: Set baserom path.
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- Can be used only in `e` or `bsf` modes.
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- `-osf PATH`: Set source output path. This is the path where the `.c` and `.h` files will be extracted to. If omitted, it will use the value passed to `--outputpath` parameter.
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- `-gsf MODE`: Generate source file during extraction. If `MODE` is `1`, C source files will be generated.
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- Can be used only in `e` mode.
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- `-crc` / `--output-crc`: Outputs a CRC file for each extracted texture.
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- Can be used only in `e` or `bsf` modes.
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- `-ulzdl MODE`: Use "Legacy ZDisplayList" instead of `libgfxd`. Set `MODE` to `1` to enable it.
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- Can be used only in `e` or `bsf` modes.
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- `-profile MODE`: Enable profiling. Set `MODE` to `1` to enable it.
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- `-uer MODE`: Split resources into their individual components (enabled by default). Set `MODE` to non-`1` to disable it.
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- `-tt TYPE`: Set texture type.
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- Can be used only in mode `btex`.
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- Valid values:
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- `rgba32`
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- `rgb5a1`
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- `i4`
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- `i8`
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- `ia4`
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- `ia8`
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- `ia16`
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- `ci4`
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- `ci8`
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- `-cfg PATH`: Set cfg path (for overlays).
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- Can be used only in `bovl` mode.
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- `-rconf PATH` Read Config File.
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- `-eh`: Enable error handler.
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- Only available in non-Windows environments.
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- `-v MODE`: Enable verbosity. Currently there are 3 possible values:
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- `0`: Default. Completely silent (except for warnings and errors).
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- `1`: Information.
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- `2` (and higher): Debug.
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- `-wu` / `--warn-unaccounted`: Enable warnings for each unaccounted block of data found.
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- Can be used only in `e` or `bsf` modes.
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- `-vu` / `--verbose-unaccounted`: Changes how unaccounteds are outputted. Max 4 bytes per line (a word) and add a comment with the offset of each of those lines.
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- Could be useful for looking at raw data or testing.
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- Can be used only in `e` or `bsf` modes.
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- `-tm MODE`: Test Mode (enables certain experimental features). To enable it, set `MODE` to `1`.
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- `-se` / `--set-exporter` : Sets which exporter to use.
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- `--gcc-compat` : Enables GCC compatibly mode. Slower.
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- `-us` / `--unaccounted-static` : Mark unaccounted data as `static`
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- `-s` / `--static` : Mark every asset as `static`.
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- This behaviour can be overridden per asset using `Static=` in the respective XML node.
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- `-W...`: warning flags, see below
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Additionally, you can pass the flag `--version` to see the current ZAPD version. If that flag is passed, ZAPD will ignore any other parameter passed.
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### Warning flags
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ZAPD contains a variety of warning types, with similar syntax to GCC or Clang's compiler warnings. Warnings can have three levels:
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- Off (does not display anything)
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- Warn (print a warning but continue processing)
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- Err (behave like an error, i.e. print and throw an exception to crash ZAPD when occurs)
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Each warning type uses one of these by default, but can be modified with flags, similarly to GCC or Clang:
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- `-Wfoo` enables warnings of type `foo`
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- `-Wno-foo` disables warnings of type `foo`
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- `-Werror=foo` escalates `foo` to behave like an error
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- `-Weverything` enables all warnings (they may be turned off using `-Wno-` flags afterwards)
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- `-Werror` escalates all enabled warnings to errors
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All warning types currently implemented, with their default levels:
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| Warning type | Default level | Description |
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| --------------------------- | ------------- | ------------------------------------------------------------------------ |
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| `-Wdeprecated` | Warn | Deprecated features |
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| `-Whardcoded-pointer` | Warn | ZAPD lacks the info to make a symbol, so must output a hardcoded pointer |
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| `-Wintersection` | Warn | Two assets intersect |
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| `-Winvalid-attribute-value` | Err | Attribute declared in XML is wrong |
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| `-Winvalid-extracted-data` | Err | Extracted data does not have correct form |
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| `-Winvalid-jpeg` | Err | JPEG file does not conform to the game's format requirements |
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| `-Winvalid-png` | Err | Issues arising when processing PNG data |
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| `-Winvalid-xml` | Err | XML has syntax errors |
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| `-Wmissing-attribute` | Warn | Required attribute missing in XML tag |
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| `-Wmissing-offsets` | Warn | Offset attribute missing in XML tag |
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| `-Wmissing-segment` | Warn | Segment not given in File tag in XML |
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| `-Wnot-implemented` | Warn | ZAPD does not currently support this feature |
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| `-Wunaccounted` | Off | Large blocks of unaccounted |
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| `-Wunknown-attribute` | Warn | Unknown attribute in XML entry tag |
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There are also errors that do not have a type, and cannot be disabled.
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For example, here we have invoked ZAPD in the usual way to extract using a (rather badly-written) XML, but escalating `-Wintersection` to an error:
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