Change the folder structure of the vulkan backend to better reflect what is going on

src/common/rendering/vulkan/vk_streambuffer.cpp

@@ -0,0 +1,123 @@
+/*
+**  Vulkan backend
+**  Copyright (c) 2016-2020 Magnus Norddahl
+**
+**  This software is provided 'as-is', without any express or implied
+**  warranty.  In no event will the authors be held liable for any damages
+**  arising from the use of this software.
+**
+**  Permission is granted to anyone to use this software for any purpose,
+**  including commercial applications, and to alter it and redistribute it
+**  freely, subject to the following restrictions:
+**
+**  1. The origin of this software must not be misrepresented; you must not
+**     claim that you wrote the original software. If you use this software
+**     in a product, an acknowledgment in the product documentation would be
+**     appreciated but is not required.
+**  2. Altered source versions must be plainly marked as such, and must not be
+**     misrepresented as being the original software.
+**  3. This notice may not be removed or altered from any source distribution.
+**
+*/
+
+#include "vk_renderstate.h"
+#include "vulkan/vk_renderdevice.h"
+#include "vulkan/vk_streambuffer.h"
+#include "vulkan/buffers/vk_buffer.h"
+#include <zvulkan/vulkanbuilders.h>
+
+VkStreamBufferWriter::VkStreamBufferWriter(VulkanRenderDevice* fb)
+{
+	mBuffer = fb->GetBufferManager()->StreamBuffer.get();
+}
+
+bool VkStreamBufferWriter::Write(const StreamData& data)
+{
+	mDataIndex++;
+	if (mDataIndex == MAX_STREAM_DATA)
+	{
+		mDataIndex = 0;
+		mStreamDataOffset = mBuffer->NextStreamDataBlock();
+		if (mStreamDataOffset == 0xffffffff)
+			return false;
+	}
+	uint8_t* ptr = (uint8_t*)mBuffer->UniformBuffer->Memory();
+	memcpy(ptr + mStreamDataOffset + sizeof(StreamData) * mDataIndex, &data, sizeof(StreamData));
+	return true;
+}
+
+void VkStreamBufferWriter::Reset()
+{
+	mDataIndex = MAX_STREAM_DATA - 1;
+	mStreamDataOffset = 0;
+	mBuffer->Reset();
+}
+
+/////////////////////////////////////////////////////////////////////////////
+
+VkMatrixBufferWriter::VkMatrixBufferWriter(VulkanRenderDevice* fb)
+{
+	mBuffer = fb->GetBufferManager()->MatrixBuffer.get();
+	mIdentityMatrix.loadIdentity();
+}
+
+template<typename T>
+static void BufferedSet(bool& modified, T& dst, const T& src)
+{
+	if (dst == src)
+		return;
+	dst = src;
+	modified = true;
+}
+
+static void BufferedSet(bool& modified, VSMatrix& dst, const VSMatrix& src)
+{
+	if (memcmp(dst.get(), src.get(), sizeof(FLOATTYPE) * 16) == 0)
+		return;
+	dst = src;
+	modified = true;
+}
+
+bool VkMatrixBufferWriter::Write(const VSMatrix& modelMatrix, bool modelMatrixEnabled, const VSMatrix& textureMatrix, bool textureMatrixEnabled)
+{
+	bool modified = (mOffset == 0); // always modified first call
+
+	if (modelMatrixEnabled)
+	{
+		BufferedSet(modified, mMatrices.ModelMatrix, modelMatrix);
+		if (modified)
+			mMatrices.NormalModelMatrix.computeNormalMatrix(modelMatrix);
+	}
+	else
+	{
+		BufferedSet(modified, mMatrices.ModelMatrix, mIdentityMatrix);
+		BufferedSet(modified, mMatrices.NormalModelMatrix, mIdentityMatrix);
+	}
+
+	if (textureMatrixEnabled)
+	{
+		BufferedSet(modified, mMatrices.TextureMatrix, textureMatrix);
+	}
+	else
+	{
+		BufferedSet(modified, mMatrices.TextureMatrix, mIdentityMatrix);
+	}
+
+	if (modified)
+	{
+		mOffset = mBuffer->NextStreamDataBlock();
+		if (mOffset == 0xffffffff)
+			return false;
+
+		uint8_t* ptr = (uint8_t*)mBuffer->UniformBuffer->Memory();
+		memcpy(ptr + mOffset, &mMatrices, sizeof(MatricesUBO));
+	}
+
+	return true;
+}
+
+void VkMatrixBufferWriter::Reset()
+{
+	mOffset = 0;
+	mBuffer->Reset();
+}