Add ComputeParticlesTest

Renderer: Add a way to execute commands on the device

src/Nazara/OpenGLRenderer/OpenGLCommandBufferBuilder.cpp

@@ -160,7 +160,7 @@ namespace Nz
 
 	void OpenGLCommandBufferBuilder::PostTransferBarrier()
 	{
-		/* nothing to do */
+		m_commandBuffer.InsertMemoryBarrier(GL_BUFFER_UPDATE_BARRIER_BIT);
 	}
 
 	void OpenGLCommandBufferBuilder::SetScissor(const Recti& scissorRegion)

src/Nazara/OpenGLRenderer/OpenGLDevice.cpp

@@ -4,6 +4,7 @@
 
 #include <Nazara/OpenGLRenderer/OpenGLDevice.hpp>
 #include <Nazara/OpenGLRenderer/OpenGLBuffer.hpp>
+#include <Nazara/OpenGLRenderer/OpenGLCommandBufferBuilder.hpp>
 #include <Nazara/OpenGLRenderer/OpenGLCommandPool.hpp>
 #include <Nazara/OpenGLRenderer/OpenGLComputePipeline.hpp>
 #include <Nazara/OpenGLRenderer/OpenGLFboFramebuffer.hpp>
@@ -155,6 +156,22 @@ namespace Nz
 #endif
 	}
 
+	void OpenGLDevice::Execute(const FunctionRef<void(CommandBufferBuilder& builder)>& callback, QueueType /*queueType*/)
+	{
+		const GL::Context* activeContext = GL::Context::GetCurrentContext();
+		if (!activeContext || activeContext->GetDevice() != this)
+		{
+			if (!GL::Context::SetCurrentContext(m_referenceContext.get()))
+				throw std::runtime_error("failed to activate context");
+		}
+
+		OpenGLCommandBuffer commandBuffer; //< TODO: Use a pool and remove default constructor
+		OpenGLCommandBufferBuilder builder(commandBuffer);
+		callback(builder);
+
+		commandBuffer.Execute();
+	}
+
 	const RenderDeviceInfo& OpenGLDevice::GetDeviceInfo() const
 	{
 		return m_deviceInfo;
@@ -318,4 +335,16 @@ namespace Nz
 
 		return false;
 	}
+
+	void OpenGLDevice::WaitForIdle()
+	{
+		const GL::Context* activeContext = GL::Context::GetCurrentContext();
+		if (!activeContext || activeContext->GetDevice() != this)
+		{
+			if (!GL::Context::SetCurrentContext(m_referenceContext.get()))
+				throw std::runtime_error("failed to activate context");
+		}
+
+		m_referenceContext->glFinish();
+	}
 }