[BUG] flushClearColor throws an error

[yowl]

Description

Attempting to surface.Canvas.DrawColor(SKColors.White); and flush causes an exception

Code

            surface.Canvas.DrawColor(SKColors.White);

            surface.Canvas.Flush();

Expected Behavior

The canvas goes white

Actual Behavior

Exception occurs,

"RuntimeError: null function or function signature mismatch
    at GrGLFunction<void (float, float, float, float)>::GrGLFunction(void (*)(float, float, float, float))::'lambda'(void const*, float, float, float, float)::__invoke(void const*, float, float, float, float) (http://localhost:8000/wskia.wasm:wasm-function[42972]:0x153e1ca)
    at GrGLGpu::flushClearColor(SkRGBA4f<(SkAlphaType)2> const&) (http://localhost:8000/wskia.wasm:wasm-function[43322]:0x155382e)
    at GrGLGpu::beginCommandBuffer(GrRenderTarget*, SkIRect const&, GrSurfaceOrigin, GrOpsRenderPass::LoadAndStoreInfo const&, GrOpsRenderPass::StencilLoadAndStoreInfo const&) (http://localhost:8000/wskia.wasm:wasm-function[43337]:0x155583a)
    at GrGLOpsRenderPass::begin() (http://localhost:8000/wskia.wasm:wasm-function[43382]:0x155b466)
    at GrOpsTask::onExecute(GrOpFlushState*) (http://localhost:8000/wskia.wasm:wasm-function[43522]:0x1562580)
    at GrDrawingManager::executeRenderTasks(int, int, GrOpFlushState*, int*) (http://localhost:8000/wskia.wasm:wasm-function[42907]:0x1537823)
    at GrDrawingManager::flush(GrSurfaceProxy**, int, SkSurface::BackendSurfaceAccess, GrFlushInfo const&, GrPrepareForExternalIORequests const&) (http://localhost:8000/wskia.wasm:wasm-function[42906]:0x15373aa)
    at GrDrawingManager::flushSurfaces(GrSurfaceProxy**, int, SkSurface::BackendSurfaceAccess, GrFlushInfo const&) (http://localhost:8000/wskia.wasm:wasm-function[42908]:0x15379d8)
    at GrRenderTargetContext::flush(SkSurface::BackendSurfaceAccess, GrFlushInfo const&) (http://localhost:8000/wskia.wasm:wasm-function[32186]:0x1180ca5)
    at SkGpuDevice::flush() (http://localhost:8000/wskia.wasm:wasm-function[36719]:0x12ef302)"

Basic Information

• Version with issue: WebAssembly 2.0.12
• Last known good version:
• IDE: Visual Studio
• Platform Target Frameworks: WebAssembly/emscripten
• Target Devices: Chrome Canary

Detailed IDE/OS information (click to expand)

PASTE ANY DETAILED VERSION INFO HERE

Screenshots

Reproduction Link

https://github.com/yowl/wskia/tree/flush

and build with

dotnet publish /p:SelfContained=true -r browser-wasm -c Debug /p:TargetArchitecture=wasm /p:PlatformTarget=AnyCPU /p:MSBuildEnableWorkloadResolver=false  --self-contained /p:EmccExtraArgs=.packages\skiasharp.nativeassets.webassembly\2.80.3\build\netstandard1.0\libSkiaSharp.a\2.0.12\libSkiaSharp.a

Then server using some webserver and open in Chrome canary

[maxkatz6]

I have a similar exception running Avalonia in NativeAOT-LLVM, but with HarfBuzzSharp

RuntimeError: null function or function signature mismatch
$S_P_CoreLib_System_Runtime_ThunkBlocks__GetNewThunksBlock | @ | dotnet.native.wasm:0x5d68d1
  | $S_P_CoreLib_System_Runtime_ThunksHeap___ctor | @ | dotnet.native.wasm:0xd9869
  | $S_P_CoreLib_System_Runtime_ThunksHeap__CreateThunksHeap | @ | dotnet.native.wasm:0x5bf890
  | $S_P_CoreLib_System_Runtime_InteropServices_PInvokeMarshal__AllocateThunk | @ | dotnet.native.wasm:0xbb27b
  | $S_P_CoreLib_System_Runtime_CompilerServices_ConditionalWeakTable_2_CreateValueCallback<System___Canon__System___Canon>__InvokeOpenStaticThunk | @ | dotnet.native.wasm:0x16c9ae
  | $S_P_CoreLib_System_Runtime_CompilerServices_ConditionalWeakTable_2<System___Canon__System___Canon>__GetValueLocked | @ | dotnet.native.wasm:0x16f5f8
  | $S_P_CoreLib_System_Runtime_CompilerServices_ConditionalWeakTable_2<System___Canon__System___Canon>__GetValue | @ | dotnet.native.wasm:0x4e9f02
  | $S_P_CoreLib_System_Runtime_InteropServices_PInvokeMarshal__GetFunctionPointerForDelegate | @ | dotnet.native.wasm:0x59d17a
  | $S_P_CoreLib_System_Runtime_InteropServices_Marshal__GetFunctionPointerForDelegate | @ | dotnet.native.wasm:0xa138c
  | $S_P_CoreLib_System_Runtime_InteropServices_Marshal__GetFunctionPointerForDelegate_0<System___Canon> | @ | dotnet.native.wasm:0x4c3e9d
  | $HarfBuzzSharp_HarfBuzzSharp_HarfBuzzApi__hb_face_create_for_tables | @ | dotnet.native.wasm:0x1e8179
  | $HarfBuzzSharp_HarfBuzzSharp_Face___ctor_2 | @ | dotnet.native.wasm:0x49520c
  | $Avalonia_Skia_Avalonia_Skia_GlyphTypefaceImpl___ctor | @ | dotnet.native.wasm:0x286869
  | $Avalonia_Skia_Avalonia_Skia_FontManagerImpl__TryCreateGlyphTypeface | @ | dotnet.native.wasm:0x490633
  | $Avalonia_Base_Avalonia_Media_Fonts_SystemFontCollection__TryGetGlyphTypeface | @ | dotnet.native.wasm:0x2804f4
  | $Avalonia_Base_Avalonia_Media_FontManager__TryGetGlyphTypeface | @ | dotnet.native.wasm:0x54369e
  | $Avalonia_Base_Avalonia_Media_Typeface__get_GlyphTypeface | @ | dotnet.native.wasm:0x115cbe

Removing text rendering make app render just fine without this error (at least, a simple rectangle and software render for now).

[maxkatz6]

And to keep experiments with LLVM and SkiaSharp in one place, if I enable WebGL rendering it will throw a different exception:

RuntimeError: memory access out of bounds
    at dotnet.native.wasm.GrMemoryPool::allocate(:51968/unsigned long) (http://localhost:51968/dotnet.native.wasm)
    at dotnet.native.wasm.SkSL::Pool::AllocIRNode(:51968/unsigned long) (http://localhost:51968/dotnet.native.wasm)
    at dotnet.native.wasm.SkSL::Context::Context(:51968/) (http://localhost:51968/dotnet.native.wasm)
    at dotnet.native.wasm.SkSL::Compiler::Compiler(:51968/GrShaderCaps const*, SkSL::Compiler::Flags) (http://localhost:51968/dotnet.native.wasm)
    at dotnet.native.wasm.GrGLContext::compiler(:51968/) const (http://localhost:51968/dotnet.native.wasm)
    at dotnet.native.wasm.GrSkSLtoGLSL(:51968/GrGLContext const&, SkSL::Program::Kind, SkSL::String const&, SkSL::Program::Settings const&, SkSL::String*, GrContextOptions::ShaderErrorHandler*) (http://localhost:51968/dotnet.native.wasm)
    at dotnet.native.wasm.GrGLProgramBuilder::finalize(:51968/GrGLPrecompiledProgram const*) (http://localhost:51968/dotnet.native.wasm)
    at dotnet.native.wasm.GrGLProgramBuilder::CreateProgram(:51968/GrGLGpu*, GrRenderTarget*, GrProgramDesc const&, GrProgramInfo const&, GrGLPrecompiledProgram const*) (http://localhost:51968/dotnet.native.wasm)
    at dotnet.native.wasm.GrGLGpu::ProgramCache::findOrCreateProgram(:51968/GrRenderTarget*, GrProgramDesc const&, GrProgramInfo const&, GrGpu::Stats::ProgramCacheResult*) (http://localhost:51968/dotnet.native.wasm)
    at dotnet.native.wasm.GrGLGpu::ProgramCache::findOrCreateProgram(:51968/GrRenderTarget*, GrProgramInfo const&) (http://localhost:51968/dotnet.native.wasm)

Not sure what triggers it yet, I want to focus on software rendering for now.