1 files changed, 332 insertions, 0 deletions
diff --git a/Runtime/Graphics/Texture.cpp b/Runtime/Graphics/Texture.cpp
new file mode 100644
index 0000000..a343da4
--- /dev/null
+++ b/Runtime/Graphics/Texture.cpp
@@ -0,0 +1,332 @@
+#include "UnityPrefix.h"
+#include "Texture.h"
+#include "Image.h"
+#include "Runtime/Utilities/BitUtility.h"
+#include "Runtime/Shaders/GraphicsCaps.h"
+#include "Runtime/GfxDevice/GfxDevice.h"
+#include "External/shaderlab/Library/texenv.h"
+#include "Runtime/Graphics/ProceduralMaterial.h"
+
+using namespace std;
+
+static int gTextureBaseLevel = 0;
+static int gAnisoSetting = Texture::kEnableAniso;
+
+static const int kForceAnisoMinLevelDefault = 9;
+static const int kAnisoMaxLevelDefault 		= 16;
+
+static int gForceAnisoMinLevel	= kForceAnisoMinLevelDefault;
+static int gAnisoMaxLevel		= kAnisoMaxLevelDefault;
+
+
+Texture::TextureIDMap Texture::s_TextureIDMap;
+
+
+///@todo: texture should not allocate memory based on texture base level.
+
+Texture::Texture(MemLabelId label, ObjectCreationMode mode)
+:	Super(label, mode), m_UVScaleX(1.0f), m_UVScaleY(1.0f), m_TexelSizeX(1.0f), m_TexelSizeY(1.0f)
+{
+	// We use unchecked version since we may not be on the main thread
+	// This means CreateTextureID() implementation must be thread safe!
+	m_TexID = GetUncheckedGfxDevice().CreateTextureID();
+	m_UsageMode = kTexUsageNone;
+	m_ColorSpace = kTexColorSpaceLinear;
+}
+
+Texture::~Texture ()
+{
+	MainThreadCleanup ();
+}
+
+bool Texture::MainThreadCleanup ()
+{
+	Texture::s_TextureIDMap.erase (m_TexID);
+
+	// FreeTextureID() implementation must be thread safe!
+	GetUncheckedGfxDevice().FreeTextureID(m_TexID);
+	m_TexID = TextureID();
+	
+	// Notify TexEnvs using this texture
+	for( size_t i = 0; i < m_TexEnvUsers.size(); ++i )
+	{
+		ASSERT_RUNNING_ON_MAIN_THREAD
+		m_TexEnvUsers[i]->SetUsedTexture(NULL, 0);
+	}
+	m_TexEnvUsers.clear();
+	return true;
+}
+
+
+void Texture::CheckConsistency()
+{
+	Super::CheckConsistency();
+	m_TextureSettings.CheckConsistency ();
+}
+
+void Texture::Reset ()
+{
+	Super::Reset ();
+	m_UsageMode = kTexUsageNone;
+	m_ColorSpace = kTexColorSpaceLinear;
+}
+
+void Texture::SetMasterTextureLimit (int i, bool reloadTextures /*= true*/)
+{
+	if (gTextureBaseLevel == i)
+		return;
+
+	gTextureBaseLevel = i;
+	if (!reloadTextures)
+		return;
+
+	vector<SInt32> objects;
+	Object::FindAllDerivedObjects (ClassID (Texture), &objects);
+	for( size_t j = 0; j < objects.size(); ++j )
+	{
+		Texture& tex = *PPtr<Texture> (objects[j]);
+#if UNITY_EDITOR
+		if (tex.IgnoreMasterTextureLimit ())
+			continue;
+#endif
+		tex.UnloadFromGfxDevice(false);
+		tex.UploadToGfxDevice();
+	}
+
+	ProceduralMaterial::ReloadAll();
+}
+
+void Texture::ReloadAll (bool unload, bool load, bool forceUnloadAll)
+{
+	vector<SInt32> objects;
+	Object::FindAllDerivedObjects (ClassID (Texture), &objects, true);
+	for (size_t i=0;i<objects.size ();++i)
+	{
+		Texture& tex = *PPtr<Texture> (objects[i]);
+
+		if (unload)
+			tex.UnloadFromGfxDevice(forceUnloadAll);
+		if (load)
+			tex.UploadToGfxDevice();
+	}
+
+	ProceduralMaterial::ReloadAll(unload, load);
+}
+
+static void SetAnisoLimitEnumImpl(int aniso, bool forced = false)
+{
+	if (aniso == gAnisoSetting && !forced)
+		return;
+
+	gAnisoSetting = aniso;
+	if (gAnisoSetting == Texture::kDisableAniso)
+		TextureSettings::SetAnisoLimits (1, 1);
+	else if (gAnisoSetting == Texture::kForceEnableAniso)
+		TextureSettings::SetAnisoLimits (gForceAnisoMinLevel, gAnisoMaxLevel);
+	else
+		TextureSettings::SetAnisoLimits (1, gAnisoMaxLevel);
+
+	vector<Texture*> objects;
+	Object::FindObjectsOfType (&objects);
+	for (int i=0;i<objects.size ();i++)
+		objects[i]->ApplySettings ();
+}
+
+void Texture::SetAnisoLimit (int aniso)
+{
+	SetAnisoLimitEnumImpl(aniso, false);
+}
+
+
+void Texture::SetGlobalAnisoLimits(int forcedMin, int globalMax)
+{
+	if(forcedMin == -1)
+		forcedMin = kForceAnisoMinLevelDefault;
+	if(globalMax == -1)
+		globalMax = kAnisoMaxLevelDefault;
+
+	if(gForceAnisoMinLevel == forcedMin && gAnisoMaxLevel == globalMax)
+		return;
+
+	gForceAnisoMinLevel = forcedMin;
+	gAnisoMaxLevel 		= globalMax;
+
+	SetAnisoLimitEnumImpl(gAnisoSetting, true);
+}
+
+int Texture::GetAnisoLimit ()
+{
+	return gAnisoSetting;
+}
+
+bool Texture::HasMipMap () const {return false;}
+
+void Texture::ApplySettings()
+{
+	m_TextureSettings.Apply( GetTextureID(), GetDimension(), HasMipMap(), GetActiveTextureColorSpace() );
+	NotifyMipBiasChanged();
+}
+
+void Texture::AddTexEnvUser(ShaderLab::TexEnv* texenv)
+{
+	SET_ALLOC_OWNER(this);
+	size_t index = m_TexEnvUsers.size();
+	texenv->SetUsedTexture(this, index);
+	m_TexEnvUsers.push_back(texenv);
+}
+
+void Texture::RemoveTexEnvUser(ShaderLab::TexEnv* texenv, size_t index)
+{
+	DebugAssert(m_TexEnvUsers[index] == texenv);
+	// Swap with last element and pop
+	m_TexEnvUsers[index] = m_TexEnvUsers.back();
+	m_TexEnvUsers[index]->SetUsedTexture(this, index);
+	m_TexEnvUsers.pop_back();
+	texenv->SetUsedTexture(NULL, 0);
+}
+
+void Texture::NotifyMipBiasChanged()
+{
+	float mipBias = m_TextureSettings.m_MipBias;
+	for( size_t i = 0; i < m_TexEnvUsers.size(); ++i )
+	{
+		ShaderLab::TexEnv* te = m_TexEnvUsers[i];
+		te->TextureMipBiasChanged( mipBias );
+	}
+}
+
+void Texture::NotifyUVScaleChanged()
+{
+	float x = m_UVScaleX;
+	float y = m_UVScaleY;
+	for( size_t i = 0; i < m_TexEnvUsers.size(); ++i )
+	{
+		ShaderLab::TexEnv* te = m_TexEnvUsers[i];
+		te->TextureUVScaleChanged( x, y );
+	}
+}
+
+
+void Texture::SetFilterMode (int mode)
+{
+	if (m_TextureSettings.m_FilterMode != mode) {
+		m_TextureSettings.m_FilterMode = mode;
+		ApplySettings();
+		SetDirty();
+	}
+}
+
+void Texture::SetUsageMode ( TextureUsageMode mode)
+{
+	if (m_UsageMode != mode) {
+		m_UsageMode = mode;
+		ApplySettings();
+		SetDirty();
+	}
+}
+
+void Texture::SetStoredColorSpace(TextureColorSpace space)
+{
+	if (m_ColorSpace != space) {
+		m_ColorSpace = space;
+		ApplySettings();
+		SetDirty();
+	}
+}
+
+void Texture::SetStoredColorSpaceNoDirtyNoApply(TextureColorSpace space)
+{
+	if (m_ColorSpace != space) {
+		m_ColorSpace = space;
+	}
+}
+
+void Texture::SetWrapMode (int mode)
+{
+	if (m_TextureSettings.m_WrapMode != mode) {
+		m_TextureSettings.m_WrapMode = mode;
+		ApplySettings();
+		SetDirty();
+	}
+}
+
+void Texture::SetAnisoLevel (int level)
+{
+	if (m_TextureSettings.m_Aniso != level) {
+		m_TextureSettings.m_Aniso = level;
+		ApplySettings();
+		SetDirty();
+	}
+}
+
+void Texture::SetMipMapBias (float mipBias)
+{
+	if (m_TextureSettings.m_MipBias != mipBias)
+	{
+		m_TextureSettings.m_MipBias = mipBias;
+		ApplySettings();
+		SetDirty();
+	}
+}
+
+
+#if UNITY_EDITOR
+// Helper function so texture inspector can draw preview wrap mode
+void Texture::SetWrapModeNoDirty (int mode)
+{
+	m_TextureSettings.m_WrapMode = mode;
+	ApplySettings();
+}
+
+// Helper function so texture inspector can draw preview aniso level
+void Texture::SetAnisoLevelNoDirty (int level)
+{
+	m_TextureSettings.m_Aniso = level;
+	ApplySettings();
+}
+
+// Helper function so texture inspector can draw a specific mip of the texture
+void Texture::SetMipMapBiasNoDirty (float mipBias)
+{
+	m_TextureSettings.m_MipBias = mipBias;
+	ApplySettings();
+}
+
+// Helper function for editor so it can draw zoomed textures as point.
+void Texture::SetFilterModeNoDirty (int mode)
+{
+	if (m_TextureSettings.m_FilterMode != mode) {
+		m_TextureSettings.m_FilterMode = mode;
+		ApplySettings();
+	}
+}
+
+bool Texture::IgnoreMasterTextureLimit () const
+{
+	return false;
+}
+
+#endif
+
+int Texture::GetMasterTextureLimit ()
+{
+	return gTextureBaseLevel;
+}
+
+bool Texture::ShouldIgnoreInGarbageDependencyTracking ()
+{
+	return true;
+}
+
+void* Texture::GetNativeTexturePtr()
+{
+	return GetGfxDevice().GetNativeTexturePointer(m_TexID);
+}
+
+UInt32 Texture::GetNativeTextureID()
+{
+	return GetGfxDevice().GetNativeTextureID(m_TexID);
+}
+
+
+IMPLEMENT_CLASS (Texture)