1 files changed, 195 insertions, 0 deletions
diff --git a/Runtime/Shaders/MaterialProperties.cpp b/Runtime/Shaders/MaterialProperties.cpp
new file mode 100644
index 0000000..357a73f
--- /dev/null
+++ b/Runtime/Shaders/MaterialProperties.cpp
@@ -0,0 +1,195 @@
+#include "UnityPrefix.h"
+#include "MaterialProperties.h"
+#include "Material.h"
+#include "External/shaderlab/Library/properties.h"
+#include "Runtime/Math/Matrix4x4.h"
+
+inline size_t CalculateSizeFromProperty (const MaterialPropertyBlock::Property& prop)
+{
+	return prop.rows * prop.cols * prop.arraySize;
+}
+
+MaterialPropertyBlock::MaterialPropertyBlock(Property* props, size_t propCount, float* buffer, size_t bufSize)
+{
+	m_Properties.assign_external(props, props + propCount);
+	m_Buffer.assign_external(buffer, buffer + bufSize);
+}
+
+void MaterialPropertyBlock::AddProperty(const ShaderLab::FastPropertyName& name, const float* data, UInt8 rows, UInt8 cols, size_t arraySize)
+{
+	size_t offset = m_Buffer.size();
+	Property prop = { name.index, rows, cols, kTexDimNone, arraySize, offset };
+	m_Properties.push_back(prop);
+	size_t size = rows * cols * arraySize;
+	m_Buffer.resize_uninitialized(offset + size);
+	memcpy(&m_Buffer[offset], data, size * sizeof(float));
+}
+
+void MaterialPropertyBlock::AddPropertyTexture(const ShaderLab::FastPropertyName& name, TextureDimension dim, TextureID tid)
+{
+	AddProperty (name, reinterpret_cast<float*> (&tid.m_ID), 1, 1, 1);
+	m_Properties.back().texDim = dim;
+}
+
+void MaterialPropertyBlock::AddPropertyFloat(const ShaderLab::FastPropertyName& name, float val)
+{
+	AddProperty(name, &val, 1, 1, 1);
+}
+
+void MaterialPropertyBlock::AddPropertyVector(const ShaderLab::FastPropertyName& name, const Vector4f& vec)
+{
+	AddProperty(name, vec.GetPtr(), 1, 4, 1);
+}
+
+void MaterialPropertyBlock::AddPropertyColor(const ShaderLab::FastPropertyName& name, const ColorRGBAf& col)
+{
+	ColorRGBAf converted = GammaToActiveColorSpace (col);
+	AddProperty(name, converted.GetPtr(), 1, 4, 1);
+}
+
+void MaterialPropertyBlock::AddPropertyMatrix(const ShaderLab::FastPropertyName& name, const Matrix4x4f& mat)
+{
+	AddProperty(name, mat.GetPtr(), 4, 4, 1);
+}
+
+void MaterialPropertyBlock::ReplacePropertyTexture(const ShaderLab::FastPropertyName& name, TextureDimension dim, TextureID tid)
+{
+	int index = GetPropertyIndex(name);
+	if (index == -1)
+		AddPropertyTexture(name, dim, tid);
+	else
+	{
+		Property& prop = m_Properties[index];
+		if (prop.rows == 1 && prop.cols == 1 && prop.arraySize == 1)
+		{
+			TextureID* buf = reinterpret_cast<TextureID*> (&m_Buffer[prop.offset]);
+			*buf = tid;
+			prop.texDim = dim;
+		}
+		else
+		{
+			ErrorString("The material property is different from already stored property.");
+		}
+	}	
+}
+
+void MaterialPropertyBlock::ReplacePropertyColor(const ShaderLab::FastPropertyName& name, const ColorRGBAf& col)
+{
+	ColorRGBAf activeColor = GammaToActiveColorSpace (col);
+	ReplacePropertyVector (name, *reinterpret_cast<const Vector4f*> (&activeColor));
+}
+
+void MaterialPropertyBlock::ReplacePropertyVector(const ShaderLab::FastPropertyName& name, const Vector4f& vec)
+{
+	int index = GetPropertyIndex(name);
+	if (index == -1)
+		AddPropertyVector(name, vec);
+	else
+	{
+		const Property& prop = m_Properties[index];
+		if (prop.rows == 1 && prop.cols == 4 && prop.arraySize == 1)
+		{
+			Vector4f* buf = reinterpret_cast<Vector4f*> (&m_Buffer[prop.offset]);
+			*buf = vec;
+		}
+		else
+		{
+			ErrorString("The material property is different from already stored property.");
+		}
+	}
+}
+
+void MaterialPropertyBlock::ReplacePropertyFloat(const ShaderLab::FastPropertyName& name, float data)
+{
+	ReplacePartialFloatProperty(name, data, 1, 0);
+}
+
+void MaterialPropertyBlock::ReplacePartialFloatColorProperty(const ShaderLab::FastPropertyName& name, float data, UInt8 cols, UInt8 colIndex)
+{
+	ReplacePartialFloatProperty(name, GammaToActiveColorSpace(data), cols, colIndex);
+}
+
+void MaterialPropertyBlock::ReplacePartialFloatProperty(const ShaderLab::FastPropertyName& name, float data, UInt8 cols, UInt8 colIndex)
+{
+	int index = GetPropertyIndex(name);
+	if (index == -1)
+	{
+		float prop[4] = { 0.0F, 0.0F, 0.0F, 0.0F };
+		prop[colIndex] = data;
+		
+		AddProperty(name, prop, 1, cols, 1);
+	}
+	else
+	{
+		const Property& prop = m_Properties[index];
+		if (prop.rows == 1 && prop.cols == cols && prop.arraySize == 1)
+		{
+			float* buffer = reinterpret_cast<float*> (&m_Buffer[prop.offset]);
+			buffer[colIndex] = data;
+		}
+		else
+		{
+			ErrorString("The material property is different from already stored property.");
+		}
+	}
+}
+
+int MaterialPropertyBlock::GetPropertyIndex (const ShaderLab::FastPropertyName& name) const
+{
+	for (int i=0;i<m_Properties.size();i++)
+	{
+		if (m_Properties[i].nameIndex == name.index)
+			return i;
+	}
+	return -1;
+}
+
+const void* MaterialPropertyBlock::Find(const ShaderLab::FastPropertyName& name, UInt8 rows, UInt8 cols, size_t arraySize) const
+{
+	for (size_t i = 0, n = m_Properties.size(); i != n; ++i)
+	{
+		const Property& prop = m_Properties[i];
+		if (name.index == prop.nameIndex && prop.cols == cols && prop.rows == rows)
+			return &m_Buffer[prop.offset];
+	}
+	return NULL;
+}
+
+
+const float* MaterialPropertyBlock::FindFloat(const ShaderLab::FastPropertyName& name) const
+{
+	return static_cast<const float*> (Find(name, 1, 1, 1));
+}
+
+const Vector4f* MaterialPropertyBlock::FindVector(const ShaderLab::FastPropertyName& name) const
+{
+	return static_cast<const Vector4f*> (Find(name, 1, 4, 1));
+}
+
+const Matrix4x4f* MaterialPropertyBlock::FindMatrix(const ShaderLab::FastPropertyName& name) const
+{
+	return static_cast<const Matrix4x4f*> (Find(name, 4, 4, 1));
+}
+
+bool MaterialPropertyBlock::GetColor(const ShaderLab::FastPropertyName& name, ColorRGBAf& outColor) const
+{
+	const ColorRGBAf* color = static_cast<const ColorRGBAf*> (Find(name, 1, 4, 1));
+	if (color != NULL)
+	{
+		outColor = ActiveToGammaColorSpace(*color);
+		return true;
+	}
+	else
+		return false;
+}
+
+const TextureID MaterialPropertyBlock::FindTexture(const ShaderLab::FastPropertyName& name) const
+{
+	for (size_t i = 0, n = m_Properties.size(); i != n; ++i)
+	{
+		const Property& prop = m_Properties[i];
+		if (name.index == prop.nameIndex && prop.texDim != kTexDimNone)
+			return TextureID(*(const int*)&m_Buffer[prop.offset]);
+	}
+	return TextureID();
+}