Allow fallback if surface cannot be created (#487)

skiko/src/androidMain/kotlin/org/jetbrains/skiko/Renderer.android.kt

@@ -164,7 +164,7 @@ private class SkikoSurfaceRender(private val layer: SkiaLayer, private val manag
             SurfaceOrigin.BOTTOM_LEFT,
             SurfaceColorFormat.RGBA_8888,
             ColorSpace.sRGB
-        )
+        ) ?: throw RenderException("Cannot create surface")
         canvas = surface!!.canvas
     }
 

skiko/src/awtMain/kotlin/org/jetbrains/skiko/context/AngleContextHandler.kt

@@ -44,7 +44,7 @@ internal class AngleContextHandler(layer: SkiaLayer) : JvmContextHandler(layer)
             SurfaceOrigin.BOTTOM_LEFT,
             SurfaceColorFormat.RGBA_8888,
             ColorSpace.sRGB
-        )
+        ) ?: throw RenderException("Cannot create surface")
 
         canvas = surface!!.canvas
     }

skiko/src/awtMain/kotlin/org/jetbrains/skiko/context/MetalContextHandler.kt

@@ -4,6 +4,7 @@ import org.jetbrains.skia.ColorSpace
 import org.jetbrains.skia.Surface
 import org.jetbrains.skia.SurfaceColorFormat
 import org.jetbrains.skia.SurfaceOrigin
+import org.jetbrains.skiko.RenderException
 import org.jetbrains.skiko.SkiaLayer
 import org.jetbrains.skiko.redrawer.MetalRedrawer
 
@@ -41,7 +42,7 @@ internal class MetalContextHandler(layer: SkiaLayer) : JvmContextHandler(layer)
             SurfaceOrigin.TOP_LEFT,
             SurfaceColorFormat.BGRA_8888,
             ColorSpace.sRGB
-        )
+        ) ?: throw RenderException("Cannot create surface")
 
         canvas = surface!!.canvas
     }

skiko/src/awtMain/kotlin/org/jetbrains/skiko/context/OpenGLContextHandler.kt

@@ -5,10 +5,7 @@ import org.jetbrains.skia.FramebufferFormat
 import org.jetbrains.skia.Surface
 import org.jetbrains.skia.SurfaceColorFormat
 import org.jetbrains.skia.SurfaceOrigin
-import org.jetbrains.skiko.OpenGLApi
-import org.jetbrains.skiko.SkiaLayer
-import org.jetbrains.skiko.makeGLContext
-import org.jetbrains.skiko.makeGLRenderTarget
+import org.jetbrains.skiko.*
 
 internal class OpenGLContextHandler(layer: SkiaLayer) : JvmContextHandler(layer) {
     override fun initContext(): Boolean {
@@ -60,7 +57,7 @@ internal class OpenGLContextHandler(layer: SkiaLayer) : JvmContextHandler(layer)
                 SurfaceOrigin.BOTTOM_LEFT,
                 SurfaceColorFormat.RGBA_8888,
                 ColorSpace.sRGB
-            )
+            ) ?: throw RenderException("Cannot create surface")
         }
 
         canvas = surface!!.canvas

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

@@ -2,6 +2,7 @@ package org.jetbrains.skia
 
 import org.jetbrains.skia.impl.*
 import org.jetbrains.skia.impl.Library.Companion.staticLoad
+import org.jetbrains.skiko.RenderException
 
 class Surface : RefCnt {
     companion object {
@@ -273,7 +274,7 @@ class Surface : RefCnt {
             colorFormat: SurfaceColorFormat,
             colorSpace: ColorSpace?,
             surfaceProps: SurfaceProps? = null
-        ): Surface {
+        ): Surface? {
             return try {
                 Stats.onNativeCall()
                 val ptr = _nMakeFromBackendRenderTarget(
@@ -284,9 +285,9 @@ class Surface : RefCnt {
                     getPtr(colorSpace),
                     surfaceProps
                 )
-                require(ptr != NullPointer) {
-                    "Failed Surface.makeFromBackendRenderTarget"
-                }
+                if (ptr == NullPointer)
+                    null
+                else
                     Surface(ptr, context, rt)
             } finally {
                 reachabilityBarrier(context)

skiko/src/iosMain/kotlin/org/jetbrains/skiko/context/MetalContextHandler.kt

@@ -5,6 +5,7 @@ import org.jetbrains.skia.ColorSpace
 import org.jetbrains.skia.Surface
 import org.jetbrains.skia.SurfaceColorFormat
 import org.jetbrains.skia.SurfaceOrigin
+import org.jetbrains.skiko.RenderException
 import org.jetbrains.skiko.SkiaLayer
 import org.jetbrains.skiko.redrawer.MetalRedrawer
 
@@ -54,7 +55,7 @@ internal class MetalContextHandler(layer: SkiaLayer) : ContextHandler(layer, lay
             SurfaceOrigin.TOP_LEFT,
             SurfaceColorFormat.BGRA_8888,
             ColorSpace.sRGB
-        )
+        ) ?: throw RenderException("Cannot create surface")
 
         canvas = surface!!.canvas
     }

skiko/src/jsMain/kotlin/org/jetbrains/skiko/CanvasRenderer.kt

@@ -68,7 +68,7 @@ abstract class CanvasRenderer constructor(val htmlCanvas: HTMLCanvasElement) {
             SurfaceOrigin.BOTTOM_LEFT,
             SurfaceColorFormat.RGBA_8888,
             ColorSpace.sRGB
-        )
+        ) ?: throw RenderException("Cannot create surface")
         canvas = surface!!.canvas
     }
 

skiko/src/macosMain/kotlin/org/jetbrains/skiko/context/MetalContextHandler.macos.kt

@@ -5,6 +5,7 @@ import org.jetbrains.skia.ColorSpace
 import org.jetbrains.skia.Surface
 import org.jetbrains.skia.SurfaceColorFormat
 import org.jetbrains.skia.SurfaceOrigin
+import org.jetbrains.skiko.RenderException
 import org.jetbrains.skiko.SkiaLayer
 import org.jetbrains.skiko.redrawer.MacOsMetalRedrawer
 
@@ -39,7 +40,7 @@ internal class MacOsMetalContextHandler(layer: SkiaLayer) : ContextHandler(layer
             SurfaceOrigin.TOP_LEFT,
             SurfaceColorFormat.BGRA_8888,
             ColorSpace.sRGB
-        )
+        ) ?: throw RenderException("Cannot create surface")
 
         canvas = surface!!.canvas
     }

skiko/src/macosMain/kotlin/org/jetbrains/skiko/context/OpenGLContextHandler.macos.kt

@@ -2,6 +2,7 @@ package org.jetbrains.skiko.context
 
 import kotlinx.cinterop.*
 import org.jetbrains.skia.*
+import org.jetbrains.skiko.RenderException
 import org.jetbrains.skiko.SkiaLayer
 import platform.OpenGL.GL_DRAW_FRAMEBUFFER_BINDING
 import platform.OpenGL.glGetIntegerv
@@ -62,7 +63,7 @@ internal class MacOSOpenGLContextHandler(layer: SkiaLayer) : ContextHandler(laye
                     SurfaceOrigin.BOTTOM_LEFT,
                     SurfaceColorFormat.RGBA_8888,
                     ColorSpace.sRGB
-                )
+                ) ?: throw RenderException("Cannot create surface")
 
             canvas = surface?.canvas
                 ?: error("Could not obtain Canvas from Surface")