Add support for EGL

Author: Thomas-Vos

skiko/src/commonMain/kotlin/org/jetbrains/skia/DirectContext.kt

@@ -7,6 +7,13 @@ import org.jetbrains.skiko.loadOpenGLLibrary
 
 class DirectContext internal constructor(ptr: NativePointer) : RefCnt(ptr) {
     companion object {
+        fun makeEGL(): DirectContext {
+            Stats.onNativeCall()
+            val ptr = _nMakeEGL()
+            if (ptr == NullPointer) throw RenderException("Can't create EGL DirectContext")
+            return DirectContext(ptr)
+        }
+
         fun makeGL(): DirectContext {
             Stats.onNativeCall()
             loadOpenGLLibrary()
@@ -141,6 +148,10 @@ private external fun DirectContext_nFlush(ptr: NativePointer, surfacePtr: Native
 @ModuleImport("./skiko.mjs", "org_jetbrains_skia_DirectContext__1nFlushDefault")
 private external fun DirectContext_nFlushDefault(ptr: NativePointer)
 
+@ExternalSymbolName("org_jetbrains_skia_DirectContext__1nMakeEGL")
+@ModuleImport("./skiko.mjs", "org_jetbrains_skia_DirectContext__1nMakeEGL")
+private external fun _nMakeEGL(): NativePointer
+
 @ExternalSymbolName("org_jetbrains_skia_DirectContext__1nMakeGL")
 @ModuleImport("./skiko.mjs", "org_jetbrains_skia_DirectContext__1nMakeGL")
 private external fun _nMakeGL(): NativePointer

skiko/src/commonTest/kotlin/org/jetbrains/skia/SurfaceTest.kt

@@ -115,13 +115,14 @@ class SurfaceTest {
             // TODO implement for other platforms and render targets
             return
         }
-        if (hostArch == Arch.Arm64) {
-            // TODO implement and test EGL on arm64
-            return
-        }
 
         val pixels = TestGlContext.run {
-            DirectContext.makeGL().useContext { ctx ->
+            val ctx = when (hostArch) {
+                Arch.X64 -> DirectContext.makeGL()
+                Arch.Arm64 -> DirectContext.makeEGL()
+                else -> error("Unsupported arch: $hostArch")
+            }
+            ctx.useContext {
                 val imageInfo = ImageInfo.makeN32Premul(16, 16)
                 val surface = Surface.makeRenderTarget(ctx, budgeted = false, imageInfo)
 

skiko/src/nativeJsMain/cpp/DirectContext.cc

@@ -1,5 +1,6 @@
 #include "ganesh/GrDirectContext.h"
 #include "ganesh/gl/GrGLInterface.h"
+#include "ganesh/gl/egl/GrGLMakeEGLInterface.h"
 #include "common.h"
 #include "ganesh/gl/GrGLDirectContext.h" // TODO: skia update: check if it's correct
 
@@ -23,6 +24,11 @@ SKIKO_EXPORT KNativePointer org_jetbrains_skia_DirectContext__1nMakeGLWithInterf
     return static_cast<KNativePointer>(GrDirectContexts::MakeGL(iface).release());
 }
 
+SKIKO_EXPORT KNativePointer org_jetbrains_skia_DirectContext__1nMakeEGL
+  () {
+    return reinterpret_cast<KNativePointer>(GrDirectContexts::MakeGL(GrGLMakeEGLInterface()).release());
+}
+
 SKIKO_EXPORT KNativePointer org_jetbrains_skia_DirectContext__1nMakeMetal
   (KNativePointer devicePtr, KNativePointer queuePtr) {
 #ifdef SK_METAL