Implement crossfade

ZDoom · Dec 1, 2019 · 8ca05fe · 8ca05fe
1 parent 1b9479e
commit 8ca05fe
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/src/rendering/polyrenderer/backend/poly_hwtexture.cpp b/src/rendering/polyrenderer/backend/poly_hwtexture.cpp
@@ -121,6 +121,22 @@ void PolyHardwareTexture::CreateWipeTexture(int w, int h, const char *name)
 		mCanvas.reset(new DCanvas(0, 0, true));
 		mCanvas->Resize(w, h, false);
 	}
+
+	auto fb = static_cast<PolyFrameBuffer*>(screen);
+
+	fb->FlushDrawCommands();
+	DrawerThreads::WaitForWorkers();
+
+	uint32_t* dest = (uint32_t*)mCanvas->GetPixels();
+	uint32_t* src = (uint32_t*)fb->GetCanvas()->GetPixels();
+	int dpitch = mCanvas->GetPitch();
+	int spitch = fb->GetCanvas()->GetPitch();
+	int pixelsize = 4;
+
+	for (int y = 0; y < h; y++)
+	{
+		memcpy(dest + dpitch * (h - 1 - y), src + spitch * y, w * pixelsize);
+	}
 }
 
 void PolyHardwareTexture::CreateImage(FTexture *tex, int translation, int flags)