Vulkan: fix buffer copy barriers

src/libANGLE/renderer/vulkan/BufferVk.cpp

@@ -269,11 +269,11 @@ angle::Result BufferVk::copyToBuffer(ContextVk *contextVk,
                                      const VkBufferCopy *copies)
 {
     vk::CommandBuffer *commandBuffer;
-    ANGLE_TRY(mBuffer.recordCommands(contextVk, &commandBuffer));
+    ANGLE_TRY(destBuffer->recordCommands(contextVk, &commandBuffer));
     commandBuffer->copyBuffer(mBuffer.getBuffer(), destBuffer->getBuffer(), copyCount, copies);
 
-    destBuffer->onRead(&mBuffer, VK_ACCESS_TRANSFER_READ_BIT);
-    mBuffer.onWrite(VK_ACCESS_TRANSFER_WRITE_BIT);
+    mBuffer.onRead(destBuffer, VK_ACCESS_TRANSFER_READ_BIT);
+    destBuffer->onWrite(VK_ACCESS_TRANSFER_WRITE_BIT);
 
     return angle::Result::Continue;
 }

src/libANGLE/renderer/vulkan/vk_helpers.cpp

@@ -1186,11 +1186,11 @@ angle::Result BufferHelper::copyFromBuffer(ContextVk *context,
         commandBuffer->pipelineBarrier(VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
                                        VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 1, &memoryBarrier, 0,
                                        nullptr, 0, nullptr);
-
-        mCurrentWriteAccess = VK_ACCESS_TRANSFER_WRITE_BIT;
-        mCurrentReadAccess  = 0;
     }
 
+    mCurrentWriteAccess = VK_ACCESS_TRANSFER_WRITE_BIT;
+    mCurrentReadAccess  = 0;
+
     commandBuffer->copyBuffer(buffer, mBuffer, 1, &copyRegion);
 
     return angle::Result::Continue;