1 files changed, 69 insertions, 0 deletions
diff --git a/public/materialsystem/idebugtextureinfo.h b/public/materialsystem/idebugtextureinfo.h
new file mode 100644
index 0000000..426486d
--- /dev/null
+++ b/public/materialsystem/idebugtextureinfo.h
@@ -0,0 +1,69 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#ifndef IDEBUGTEXTUREINFO_H
+#define IDEBUGTEXTUREINFO_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+
+class KeyValues;
+
+
+// This interface is actually exported by the shader API DLL.
+#define DEBUG_TEXTURE_INFO_VERSION "DebugTextureInfo001"
+
+
+abstract_class IDebugTextureInfo
+{
+public:
+	
+	// Use this to turn on the mode where it builds the debug texture list.
+	// At the end of the next frame, GetDebugTextureList() will return a valid list of the textures.
+	virtual void EnableDebugTextureList( bool bEnable ) = 0;
+	
+	// If this is on, then it will return all textures that exist, not just the ones that were bound in the last frame.
+	// It is required to enable debug texture list to get this.
+	virtual void EnableGetAllTextures( bool bEnable ) = 0;
+
+	// Use this to get the results of the texture list.
+	// Do NOT release the KeyValues after using them.
+	// There will be a bunch of subkeys, each with these values:
+	//    Name   - the texture's filename
+	//    Binds  - how many times the texture was bound
+	//    Format - ImageFormat of the texture
+	//    Width  - Width of the texture
+	//    Height - Height of the texture
+	// It is required to enable debug texture list to get this.
+	virtual KeyValues* GetDebugTextureList() = 0;
+
+	// Texture memory usage
+	enum TextureMemoryType
+	{
+		MEMORY_RESERVED_MIN = 0,
+		MEMORY_BOUND_LAST_FRAME,		// sums up textures bound last frame
+		MEMORY_TOTAL_LOADED,			// total texture memory used
+		MEMORY_ESTIMATE_PICMIP_1,		// estimate of running with "picmip 1"
+		MEMORY_ESTIMATE_PICMIP_2,		// estimate of running with "picmip 2"
+		MEMORY_RESERVED_MAX
+	};
+
+	// This returns how much memory was used.
+	virtual int GetTextureMemoryUsed( TextureMemoryType eTextureMemory ) = 0;
+
+	// Use this to determine if texture debug info was computed within last numFramesAllowed frames.
+	virtual bool IsDebugTextureListFresh( int numFramesAllowed = 1 ) = 0;
+
+	// Enable debug texture rendering when texture binds should not count towards textures
+	// used during a frame. Returns the old state of debug texture rendering flag to use
+	// it for restoring the mode.
+	virtual bool SetDebugTextureRendering( bool bEnable ) = 0;
+
+};
+
+
+#endif // IDEBUGTEXTUREINFO_H