Allow multiple frame capture

ReleaseNotes.md

@@ -13,7 +13,7 @@ Current Support
 ========
 
 * A single VkInstance/VkQueue/VkDevice triple is supported.
-* Capture and replay of a single frame at a time.
+* Capture and replay of single-frame captures.
 * On replay you can step into each vkQueueSubmit call to see the command buffers submitted, and step into them to browse through the commands.
 * The pipeline state will be displayed at each command, roughly showing the data contained in each member of the pipeline createinfo struct, as well as dynamic state.
 * Simple disassembly/reflection of SPIR-V to determine which descriptors to read for read-only resources and uniform buffers. The uniform buffers will be listed separately and the member variables filled out.
@@ -31,6 +31,8 @@ On capture:
 * Memory maps are not intercepted, so any modifications are saved by reading back from the mapped pointer, even if it is uncached/write combined.
 * Image contents are saved out by copying aliasing their backing memory to a buffer, so will not be GPU-portable.
 * Captures will not be GPU-portable where memory indices etc change.
+* There might be memory leaks per-capture.
+* Memory leaks each time a new capture is loaded in the replay UI.
 * Unsupported or untested features:
 	* Subpasses
 	* Nested command buffer execution

renderdoc/driver/vulkan/wrappers/vk_wsi_funcs.cpp

@@ -936,6 +936,8 @@ VkResult WrappedVulkan::vkQueuePresentKHR(
 			// delete cmd buffers now - had to keep them alive until after serialiser flush.
 			for(size_t i=0; i < m_CmdBufferRecords.size(); i++)
 				m_CmdBufferRecords[i]->Delete(GetResourceManager());
+
+			m_CmdBufferRecords.clear();
 			
 			GetResourceManager()->MarkUnwrittenResources();
 
@@ -945,7 +947,7 @@ VkResult WrappedVulkan::vkQueuePresentKHR(
 		}
 	}
 
-	if(RenderDoc::Inst().ShouldTriggerCapture(m_FrameCounter) && m_State == WRITING_IDLE && m_FrameRecord.empty())
+	if(RenderDoc::Inst().ShouldTriggerCapture(m_FrameCounter) && m_State == WRITING_IDLE)
 	{
 		FetchFrameRecord record;
 		record.frameInfo.frameNumber = m_FrameCounter+1;