X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fbackends%2Fvulkan%2Fbuffer_backend.cpp;fp=source%2Fbackends%2Fvulkan%2Fbuffer_backend.cpp;h=4207e87d35d96a4bde10ff3dc642eb02f9c90267;hb=99ca354f18119f82f1adeca100cd665a8f640317;hp=0000000000000000000000000000000000000000;hpb=4cd245dafe6a7ee5c93edca5aee2d146f1155309;p=libs%2Fgl.git

diff --git a/source/backends/vulkan/buffer_backend.cpp b/source/backends/vulkan/buffer_backend.cpp
new file mode 100644
index 00000000..4207e87d
--- /dev/null
+++ b/source/backends/vulkan/buffer_backend.cpp
@@ -0,0 +1,127 @@
+#include "buffer.h"
+#include "buffer_backend.h"
+#include "device.h"
+#include "vulkan.h"
+
+using namespace std;
+
+namespace Msp {
+namespace GL {
+
+VulkanBuffer::VulkanBuffer():
+	device(Device::get_current())
+{ }
+
+VulkanBuffer::VulkanBuffer(VulkanBuffer &&other):
+	device(other.device),
+	handle(other.handle),
+	memory_id(other.memory_id),
+	mapped_address(other.mapped_address),
+	debug_name(move(other.debug_name))
+{
+	other.handle = 0;
+	other.memory_id = 0;
+	other.mapped_address = 0;
+}
+
+VulkanBuffer::~VulkanBuffer()
+{
+	if(handle)
+		device.get_destroy_queue().destroy(handle, memory_id);
+}
+
+void VulkanBuffer::allocate()
+{
+	const Buffer &self = *static_cast<const Buffer *>(this);
+	const VulkanFunctions &vk = device.get_functions();
+
+	VkBufferCreateInfo buffer_info = { };
+	buffer_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
+	buffer_info.size = self.size;
+	buffer_info.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT|VK_BUFFER_USAGE_TRANSFER_DST_BIT|VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT|
+		VK_BUFFER_USAGE_INDEX_BUFFER_BIT|VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
+	buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
+
+	vk.CreateBuffer(buffer_info, handle);
+
+	memory_id = device.get_allocator().allocate(handle, (self.usage==STREAMING ? STREAMING_MEMORY : DEVICE_MEMORY));
+
+	if(!debug_name.empty())
+		set_vulkan_object_name();
+}
+
+void VulkanBuffer::sub_data(size_t off, size_t sz, const void *d)
+{
+	void *staging = device.get_transfer_queue().prepare_transfer(sz, [this, off, sz](VkCommandBuffer cmd_buf, VkBuffer staging_buf, size_t src_off){
+		const VulkanFunctions &vk = device.get_functions();
+
+		VkBufferCopy region = { };
+		region.srcOffset = src_off;
+		region.dstOffset = off;
+		region.size = sz;
+		vk.CmdCopyBuffer(cmd_buf, staging_buf, handle, 1, &region);
+
+		VkBufferMemoryBarrier barrier = { };
+		barrier.sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER;
+		barrier.srcAccessMask = VK_ACCESS_MEMORY_WRITE_BIT;
+		barrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
+		barrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
+		barrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
+		barrier.buffer = handle_cast<::VkBuffer>(handle);
+		barrier.offset = off;
+		barrier.size = sz;
+
+		vk.CmdPipelineBarrier(cmd_buf, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
+			0, 0, 0, 1, &barrier, 0, 0);
+	});
+
+	const char *src = static_cast<const char *>(d);
+	copy(src, src+sz, static_cast<char *>(staging));
+}
+
+bool VulkanBuffer::can_map() const
+{
+	return static_cast<const Buffer *>(this)->usage==STREAMING;
+}
+
+void *VulkanBuffer::map()
+{
+	size_t size = static_cast<const Buffer *>(this)->size;
+	mapped_address = device.get_allocator().map(memory_id, 0, size);
+	return mapped_address;
+}
+
+bool VulkanBuffer::unmap()
+{
+	device.get_allocator().unmap(mapped_address);
+	mapped_address = 0;
+	return true;
+}
+
+void VulkanBuffer::set_debug_name(const string &name)
+{
+#ifdef DEBUG
+	debug_name = name;
+	if(handle)
+		set_vulkan_object_name();
+#else
+	(void)name;
+#endif
+}
+
+void VulkanBuffer::set_vulkan_object_name() const
+{
+#ifdef DEBUG
+	const VulkanFunctions &vk = device.get_functions();
+
+	VkDebugUtilsObjectNameInfoEXT name_info = { };
+	name_info.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_OBJECT_NAME_INFO_EXT;
+	name_info.objectType = VK_OBJECT_TYPE_BUFFER;
+	name_info.objectHandle = reinterpret_cast<uint64_t>(handle);
+	name_info.pObjectName = debug_name.c_str();
+	vk.SetDebugUtilsObjectName(name_info);
+#endif
+}
+
+} // namespace GL
+} // namespace Msp