Setting any Window or Dialog to undecorated and transparent leads to an exception in SKIKO

[hristogochev]

Describe the bug Setting any Window or Dialog to undecorated and transparent leads to an exception in SKIKO.

Affected platforms

• Desktop

Versions

• Kotlin version*: 1.8.20
• Compose Multiplatform version*: 1.4.0
• OS version(s)* (required for Desktop and iOS issues): Windows 10
• OS architecture (x86 or arm64): x86_64
• JDK (for desktop issues): OpenJDK-17

To Reproduce

1. Run the last official example from WINDOW_API_NEW:

import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material.Surface
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.shadow
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.unit.dp
import androidx.compose.ui.window.Window
import androidx.compose.ui.window.application
import androidx.compose.material.Text
import androidx.compose.runtime.*

fun main() = application {
    var isOpen by remember { mutableStateOf(true) }
    if (isOpen) {
        Window(
            onCloseRequest = { isOpen = false },
            title = "Transparent Window Example",
            transparent = true,
            undecorated = true, //transparent window must be undecorated
        ) {
            Surface(
                modifier = Modifier.fillMaxSize().padding(5.dp).shadow(3.dp, RoundedCornerShape(20.dp)),
                color = Color(55, 55, 55),
                shape = RoundedCornerShape(20.dp) //window has round corners now
            ) {
                Text("Hello World!", color = Color.White)
            }
        }
    }
}

2. A exception will pop up with the message:

   [SKIKO] warn: Fallback to next API
   org.jetbrains.skiko.RenderException: Failed to create DirectX12 device.

[dima-avdeev-jb]

Thanks, we already have this bug in skiko repository. You can follow here: https://github.com/JetBrains/skiko/issues/327

[okushnikov]

Please check the following ticket on YouTrack for follow-ups to this issue. GitHub issues will be closed in the coming weeks.