--- /dev/null
+/*
+Copyright (C) 2003 Rice1964
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+*/
+
+
+#ifndef __SURFACEHANDLER_H__
+#define __SURFACEHANDLER_H__
+
+#include "typedefs.h"
+
+/////////////// Define a struct to use as
+/////////////// storage for all the surfaces
+/////////////// created so far.
+class CTexture;
+
+typedef struct {
+ unsigned short int dwWidth; // Describes the width of the real texture area. Use lPitch to move between successive lines
+ unsigned short int dwHeight; // Describes the height of the real texture area
+ unsigned short int dwCreatedWidth; // Describes the width of the created texture area. Use lPitch to move between successive lines
+ unsigned short int dwCreatedHeight; // Describes the height of the created texture area
+ int lPitch; // Specifies the number of bytes on each row (not necessarily bitdepth*width/8)
+ void *lpSurface; // Pointer to the top left pixel of the image
+} DrawInfo;
+
+
+enum TextureFmt {
+ TEXTURE_FMT_A8R8G8B8,
+ TEXTURE_FMT_A4R4G4B4,
+ TEXTURE_FMT_UNKNOWN,
+};
+
+enum TextureUsage {
+ AS_NORMAL,
+ AS_RENDER_TARGET,
+ AS_BACK_BUFFER_SAVE,
+};
+
+class CTexture
+{
+public:
+ virtual ~CTexture();
+
+ uint32 m_dwWidth; // The requested Texture w/h
+ uint32 m_dwHeight;
+
+ unsigned int m_dwCreatedTextureWidth; // What was actually created
+ unsigned int m_dwCreatedTextureHeight;
+
+ float m_fXScale; // = m_dwCorrectedWidth/m_dwWidth
+ float m_fYScale; // = m_dwCorrectedHeight/m_dwWidth
+
+ bool m_bScaledS;
+ bool m_bScaledT;
+
+ bool m_bClampedS;
+ bool m_bClampedT;
+
+ bool m_bIsEnhancedTexture;
+
+ TextureUsage m_Usage;
+
+ virtual void ScaleImageToSurface(bool scaleS=true, bool scaleT=true);
+ virtual void ClampImageToSurfaceS();
+ virtual void ClampImageToSurfaceT();
+
+ virtual LPRICETEXTURE GetTexture() { return m_pTexture; }
+
+ uint32 GetPixelSize();
+ TextureFmt GetSurfaceFormat(void); // Surface pixel format...
+ inline void SetOthersVariables(void)
+ {
+ m_bClampedS = m_bScaledS = (m_dwWidth == m_dwCreatedTextureWidth);
+ m_bClampedT = m_bScaledT = (m_dwHeight == m_dwCreatedTextureHeight);
+ }
+
+ // Provides access to "surface"
+ virtual bool StartUpdate(DrawInfo *di)=0;
+ virtual void EndUpdate(DrawInfo *di)=0;
+
+ virtual void RestoreAlphaChannel(void); // Restore Alpha channel from RGB channel
+
+protected:
+ CTexture(uint32 dwWidth, uint32 dwHeight, TextureUsage usage = AS_NORMAL);
+ LPRICETEXTURE m_pTexture;
+ TextureFmt m_dwTextureFmt;
+};
+
+#endif
+