From 6472670ec34abf3e2caa1578d74bce6df1e8ce34 Mon Sep 17 00:00:00 2001
From: Nick Fisher <nick.fisher@avinium.com>
Date: Mon, 4 Nov 2024 08:35:19 +0800
Subject: [PATCH] add createRenderTargetRenderThread

---
 .../lib/src/viewer/src/ffi/src/thermion_dart.g.dart | 13 +++++++++++++
 .../src/viewer/src/ffi/src/thermion_viewer_ffi.dart |  6 ++++--
 .../native/include/ThermionDartRenderThreadApi.h    |  1 +
 .../native/src/ThermionDartRenderThreadApi.cpp      | 10 ++++++++++
 4 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/thermion_dart/lib/src/viewer/src/ffi/src/thermion_dart.g.dart b/thermion_dart/lib/src/viewer/src/ffi/src/thermion_dart.g.dart
index f0afabe2..7e69306f 100644
--- a/thermion_dart/lib/src/viewer/src/ffi/src/thermion_dart.g.dart
+++ b/thermion_dart/lib/src/viewer/src/ffi/src/thermion_dart.g.dart
@@ -1487,6 +1487,19 @@ external void Viewer_captureRenderTargetRenderThread(
   ffi.Pointer<ffi.NativeFunction<ffi.Void Function()>> onComplete,
 );
 
+@ffi.Native<
+    ffi.Pointer<TRenderTarget> Function(
+        ffi.Pointer<TViewer>, ffi.IntPtr, ffi.Uint32, ffi.Uint32, 
+        ffi.Pointer<ffi.NativeFunction<ffi.Void Function(ffi.Pointer<TRenderTarget>)>>
+        )>(isLeaf: true)
+external ffi.Pointer<TRenderTarget> Viewer_createRenderTargetRenderThread(
+  ffi.Pointer<TViewer> viewer,
+  int texture,
+  int width,
+  int height,
+  ffi.Pointer<ffi.NativeFunction<ffi.Void Function(ffi.Pointer<TRenderTarget>)>> onComplete,
+);
+
 @ffi.Native<
     ffi.Void Function(ffi.Pointer<TViewer>,
         ffi.Pointer<ffi.NativeFunction<ffi.Void Function()>>)>(isLeaf: true)
diff --git a/thermion_dart/lib/src/viewer/src/ffi/src/thermion_viewer_ffi.dart b/thermion_dart/lib/src/viewer/src/ffi/src/thermion_viewer_ffi.dart
index e7b5c5b2..42c51abd 100644
--- a/thermion_dart/lib/src/viewer/src/ffi/src/thermion_viewer_ffi.dart
+++ b/thermion_dart/lib/src/viewer/src/ffi/src/thermion_viewer_ffi.dart
@@ -101,8 +101,10 @@ class ThermionViewerFFI extends ThermionViewer {
   ///
   Future<RenderTarget> createRenderTarget(
       int width, int height, int textureHandle) async {
-    final renderTarget =
-        Viewer_createRenderTarget(_viewer!, textureHandle, width, height);
+    final renderTarget = await withPointerCallback<TRenderTarget>((cb) {
+      Viewer_createRenderTargetRenderThread(_viewer!, textureHandle, width, height, cb);
+    });
+        
     return FFIRenderTarget(renderTarget, _viewer!);
   }
 
diff --git a/thermion_dart/native/include/ThermionDartRenderThreadApi.h b/thermion_dart/native/include/ThermionDartRenderThreadApi.h
index dc044a3e..5d4007e5 100644
--- a/thermion_dart/native/include/ThermionDartRenderThreadApi.h
+++ b/thermion_dart/native/include/ThermionDartRenderThreadApi.h
@@ -36,6 +36,7 @@ extern "C"
     EMSCRIPTEN_KEEPALIVE void Viewer_captureRenderTargetRenderThread(TViewer *viewer, TView* view,  TSwapChain* swapChain, TRenderTarget* renderTarget, uint8_t* out, void (*onComplete)());
     EMSCRIPTEN_KEEPALIVE void Viewer_requestFrameRenderThread(TViewer *viewer, void(*onComplete)());
     EMSCRIPTEN_KEEPALIVE void Viewer_loadIblRenderThread(TViewer *viewer, const char *iblPath, float intensity, void(*onComplete)());
+    EMSCRIPTEN_KEEPALIVE void Viewer_createRenderTargetRenderThread(TViewer *viewer, intptr_t texture, uint32_t width, uint32_t height, void(*onComplete)(TRenderTarget*));
     
     EMSCRIPTEN_KEEPALIVE void View_setToneMappingRenderThread(TView *tView, TEngine *tEngine, thermion::ToneMapping toneMapping);
     EMSCRIPTEN_KEEPALIVE void View_setBloomRenderThread(TView *tView, double bloom);
diff --git a/thermion_dart/native/src/ThermionDartRenderThreadApi.cpp b/thermion_dart/native/src/ThermionDartRenderThreadApi.cpp
index dfdeb534..fd910680 100644
--- a/thermion_dart/native/src/ThermionDartRenderThreadApi.cpp
+++ b/thermion_dart/native/src/ThermionDartRenderThreadApi.cpp
@@ -263,6 +263,16 @@ extern "C"
       auto fut = _rl->add_task(lambda);
   }
 
+  EMSCRIPTEN_KEEPALIVE void Viewer_createRenderTargetRenderThread(TViewer *viewer, intptr_t texture, uint32_t width, uint32_t height, void(*onComplete)(TRenderTarget*)) {
+    std::packaged_task<void()> lambda(
+        [=]() mutable
+        {
+          auto renderTarget = Viewer_createRenderTarget(viewer, texture, width, height);
+          onComplete(renderTarget);
+        });
+      auto fut = _rl->add_task(lambda);
+  }
+
   EMSCRIPTEN_KEEPALIVE void
   set_frame_interval_render_thread(TViewer *viewer, float frameIntervalInMilliseconds)
   {