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78 lines
3.2 KiB
Markdown
78 lines
3.2 KiB
Markdown
[](https://confluence.jetbrains.com/display/ALL/JetBrains+on+GitHub)
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[](https://github.com/JetBrains/skiko/releases/latest)
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# Kotlin Multiplatform library for Skia and window management #
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Skiko (short for Skia for Kotlin) is the graphical library exposing significant part
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of [Skia library](https://skia.org) APIs to Kotlin, along with the gluing code for rendering context.
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At the moment, Linux(x86_64 and arm64), Windows(x86_64) and macOS(x86_64 and arm64) builds for Kotlin/JVM are available.
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## Using as dependency
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To use in build scripts one has to compute appropriate target platform and version,
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i.e. something like this
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```kotlin
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repositories {
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maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
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}
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val osName = System.getProperty("os.name")
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val targetOs = when {
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osName == "Mac OS X" -> "macos"
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osName.startsWith("Win") -> "windows"
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osName.startsWith("Linux") -> "linux"
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else -> error("Unsupported OS: $osName")
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}
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val osArch = System.getProperty("os.arch")
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var targetArch = when (osArch) {
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"x86_64", "amd64" -> "x64"
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"aarch64" -> "arm64"
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else -> error("Unsupported arch: $osArch")
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}
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val version = "0.4.12"
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val target = "${targetOs}-${targetArch}"
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dependencies {
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implementation("org.jetbrains.skiko:skiko-jvm-runtime-$target:$version")
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}
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```
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To use latest development snapshot use version `0.0.0-SNAPSHOT`.
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## Building JVM bindings
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* Set JAVA_HOME to location of JDK, at least version 11
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* `cd skiko && ./gradlew publishToMavenLocal` will build the artefact and publish it to local Maven repo
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To build with debug symbols and debug Skia build use `-Pskiko.debug=true` Gradle argument.
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#### Working with Skia sources
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Gradle build downloads the necessary version of Skia by default.
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However, if downloaded sources are modified, changes are discarded (Gradle
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re-evaluates tasks, when outputs are changed).
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To use custom version of the dependencies, specify `SKIA_DIR` environment variable.
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#### Building on Windows
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##### Using Visual Studio C++
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* Install [Visual Studio Build Tools](https://visualstudio.microsoft.com/visual-cpp-build-tools/) or
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[Visual Studio C++](https://visualstudio.microsoft.com/vs/features/cplusplus/).
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* If Gradle fails to find Visual C++ toolchain:
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```
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Execution failed for task ':compileDebugWindowsCpp'.
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> No tool chain is available to build C++ for host operating system 'Windows 10' architecture 'x86-64':
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- Tool chain 'visualCpp' (Visual Studio):
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- Could not locate a Visual Studio installation, using the command line tool, Windows registry or system path.
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```
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set `SKIKO_VSBT_PATH` environment variable to the location of installed Visual Studio Build Tools.
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This could be done in the UI:
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```
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Control Panel|All Control Panel Items|System|Advanced system settings|Environment variables
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```
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or by running `cmd` as administrator:
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```
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setx /M SKIKO_VSBT_PATH "C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools"
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```
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