Generate build information from CHANGES.md
This PR significantly reworks the way glslang is versioned.
Instead of committing changes to the `GLSLANG_MINOR_VERSION` define in
`glslang/Public/ShaderLang.h`, and using `make-revision` to generate
`GLSLANG_PATCH_LEVEL` in `glslang/Include/revision.h`, all version
information is now derived from the new `CHANGES.md` file.
`CHANGES.md` acts as the single source of truth for glslang version
information, along with a convenient place to put all release notes for
each notable change made.
`CHANGES.md` is parsed using the new `build_info.py` python script.
This script can read basic template files to produce new source files,
which it does to read the new `build_info.h.tmpl` to generate (at build
time) a glslang private header at
`<build-dir>/include/glslang/build_info.h`.
I've written generators for each of the CMake, Bazel, gn, and
`Android.mk` build scripts.
The new version code conforms to the Semantic Versioning 2.0 spec.
This new version is also used by the CMake rules to produce versioned
shared objects, including a major-versioned SONAME.
New APIs:
---------
* `glslang::GetVersion()` returns a `Version` struct with the version
major, minor, patch and flavor.
Breaking API changes:
---------------------
* The public defines `GLSLANG_MINOR_VERSION` and `GLSLANG_PATCH_LEVEL`
have been entirely removed.
* `glslang/Public/ShaderLang.h` and `glslang/Include/revision.h` have
been deleted.
* Instead, `<build-dir>/include/glslang/build_info.h` is created in
the build directory, and `<build-dir>/include` is a CMake `PUBLIC`
(dependee-inherited) include directory for the glslang targets.
* `<build-dir>/include/glslang/build_info.h` contains the following
new #defines:
`GLSLANG_VERSION_MAJOR`, `GLSLANG_VERSION_MINOR`,
`GLSLANG_VERSION_PATCH`, `GLSLANG_VERSION_FLAVOR`,
`GLSLANG_VERSION_GREATER_THAN(major, minor, patch)`,
`GLSLANG_VERSION_GREATER_OR_EQUAL_TO(major, minor, patch)`,
`GLSLANG_VERSION_LESS_THAN(major, minor, patch)`,
`GLSLANG_VERSION_LESS_OR_EQUAL_TO(major, minor, patch)`
* The CMake install output directory contains a copy of
`build_info.h` at: `include/glslang/build_info.h`
* Python3 is now always required to build glslang (likely always
required for transitive dependency builds).
2020-06-17 10:17:19 +00:00
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# Revision history for `glslang`
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All notable changes to this project will be documented in this file.
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This project adheres to [Semantic Versioning](https://semver.org/).
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2021-04-22 00:42:12 +00:00
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## 11.3.0 2021-04-21
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### Other changes
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* Added --depfile
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* Added --auto-sampled-textures
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* Now supports InterpolateAt-based functions
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* Supports cross-stage automatic IO mapping
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* Supports GL_EXT_vulkan_glsl_relaxed (-R option)
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2021-02-22 19:11:47 +00:00
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## 11.2.0 2021-02-18
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2021-02-18 19:04:17 +00:00
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### Other changes
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* Removed Python requirement when not building with spirv-tools
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* Add support for GL_EXT_shared_memory_block
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* Implement GL_EXT_null_initializer
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* Add CMake support for Fuschia
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2021-02-22 19:11:47 +00:00
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## 11.1.0 2020-12-07
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### Other changes
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* Added ray-tracing extension support
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2020-07-20 15:26:34 +00:00
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## 11.0.0 2020-07-20
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2020-07-20 15:32:30 +00:00
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### Breaking changes
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#### Visual Studio 2013 is no longer supported
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[As scheduled](https://github.com/KhronosGroup/glslang/blob/9eef54b2513ca6b40b47b07d24f453848b65c0df/README.md#planned-deprecationsremovals),
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Microsoft Visual Studio 2013 is no longer officially supported. Please upgrade
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to at least Visual Studio 2015.
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2020-07-20 15:26:34 +00:00
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2020-07-20 15:24:30 +00:00
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## 10.15.3847 2020-07-20
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Generate build information from CHANGES.md
This PR significantly reworks the way glslang is versioned.
Instead of committing changes to the `GLSLANG_MINOR_VERSION` define in
`glslang/Public/ShaderLang.h`, and using `make-revision` to generate
`GLSLANG_PATCH_LEVEL` in `glslang/Include/revision.h`, all version
information is now derived from the new `CHANGES.md` file.
`CHANGES.md` acts as the single source of truth for glslang version
information, along with a convenient place to put all release notes for
each notable change made.
`CHANGES.md` is parsed using the new `build_info.py` python script.
This script can read basic template files to produce new source files,
which it does to read the new `build_info.h.tmpl` to generate (at build
time) a glslang private header at
`<build-dir>/include/glslang/build_info.h`.
I've written generators for each of the CMake, Bazel, gn, and
`Android.mk` build scripts.
The new version code conforms to the Semantic Versioning 2.0 spec.
This new version is also used by the CMake rules to produce versioned
shared objects, including a major-versioned SONAME.
New APIs:
---------
* `glslang::GetVersion()` returns a `Version` struct with the version
major, minor, patch and flavor.
Breaking API changes:
---------------------
* The public defines `GLSLANG_MINOR_VERSION` and `GLSLANG_PATCH_LEVEL`
have been entirely removed.
* `glslang/Public/ShaderLang.h` and `glslang/Include/revision.h` have
been deleted.
* Instead, `<build-dir>/include/glslang/build_info.h` is created in
the build directory, and `<build-dir>/include` is a CMake `PUBLIC`
(dependee-inherited) include directory for the glslang targets.
* `<build-dir>/include/glslang/build_info.h` contains the following
new #defines:
`GLSLANG_VERSION_MAJOR`, `GLSLANG_VERSION_MINOR`,
`GLSLANG_VERSION_PATCH`, `GLSLANG_VERSION_FLAVOR`,
`GLSLANG_VERSION_GREATER_THAN(major, minor, patch)`,
`GLSLANG_VERSION_GREATER_OR_EQUAL_TO(major, minor, patch)`,
`GLSLANG_VERSION_LESS_THAN(major, minor, patch)`,
`GLSLANG_VERSION_LESS_OR_EQUAL_TO(major, minor, patch)`
* The CMake install output directory contains a copy of
`build_info.h` at: `include/glslang/build_info.h`
* Python3 is now always required to build glslang (likely always
required for transitive dependency builds).
2020-06-17 10:17:19 +00:00
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### Breaking changes
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* The following files have been removed:
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* `glslang/include/revision.h`
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* `glslang/include/revision.template`
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The `GLSLANG_MINOR_VERSION` and `GLSLANG_PATCH_LEVEL` defines have been removed
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from the public headers. \
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Instead each build script now uses the new `build_info.py`
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script along with the `build_info.h.tmpl` and this `CHANGES.md` file to generate
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the glslang build-time generated header `glslang/build_info.h`.
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The new public API to obtain the `glslang` version is `glslang::GetVersion()`.
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### Other changes
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* `glslang` shared objects produced by CMake are now `SONAME` versioned using
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[Semantic Versioning 2.0.0](https://semver.org/).
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