dxTextureContext9.h
00001 // Filename: dxTextureContext9.h
00002 // Created by:  drose (07Oct99)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef DXTEXTURECONTEXT9_H
00016 #define DXTEXTURECONTEXT9_H
00017 
00018 #include "dxgsg9base.h"
00019 #include "texture.h"
00020 #include "textureContext.h"
00021 
00022 #include "lru.h"
00023 
00024 ////////////////////////////////////////////////////////////////////
00025 //       Class : DXTextureContext9
00026 // Description :
00027 ////////////////////////////////////////////////////////////////////
00028 class EXPCL_PANDADX DXTextureContext9 : public TextureContext {
00029 public:
00030   DXTextureContext9(PreparedGraphicsObjects *pgo, Texture *tex, int view);
00031   virtual ~DXTextureContext9();
00032 
00033   virtual void evict_lru();
00034 
00035   bool create_texture(DXScreenData &scrn);
00036   bool create_simple_texture(DXScreenData &scrn);
00037   void delete_texture();
00038   bool extract_texture_data(DXScreenData &scrn);
00039 
00040   INLINE bool has_mipmaps() const;
00041   INLINE IDirect3DBaseTexture9 *get_d3d_texture() const;
00042   INLINE IDirect3DTexture9 *get_d3d_2d_texture() const;
00043   INLINE IDirect3DVolumeTexture9 *get_d3d_volume_texture() const;
00044   INLINE IDirect3DCubeTexture9 *get_d3d_cube_texture() const;
00045 
00046   static HRESULT d3d_surface_to_texture(RECT &source_rect,
00047           IDirect3DSurface9 *d3d_surface,
00048           bool inverted, Texture *result,
00049           int z);
00050 
00051 private:
00052   HRESULT fill_d3d_texture_mipmap_pixels(int mip_level, int depth_index, D3DFORMAT source_format);
00053   HRESULT fill_d3d_texture_pixels(DXScreenData &scrn, bool compress_texture);
00054   HRESULT fill_d3d_volume_texture_pixels(DXScreenData &scrn);
00055   static int down_to_power_2(int value);
00056   unsigned int get_bits_per_pixel(Texture::Format format, int *alphbits);
00057   PN_stdfloat d3d_format_to_bytes_per_pixel (D3DFORMAT format);
00058 
00059 private:
00060   D3DFORMAT _d3d_format;    // the 'D3DFORMAT' the Panda TextureBuffer fmt corresponds to
00061   IDirect3DBaseTexture9 *_d3d_texture;
00062   IDirect3DTexture9 *_d3d_2d_texture;
00063   IDirect3DVolumeTexture9 *_d3d_volume_texture;
00064   IDirect3DCubeTexture9 *_d3d_cube_texture;
00065 
00066   int _managed;
00067 
00068 private:
00069   bool _has_mipmaps;
00070   bool _is_render_target;
00071   
00072 public:
00073   static TypeHandle get_class_type() {
00074     return _type_handle;
00075   }
00076   static void init_type() {
00077     TextureContext::init_type();
00078     register_type(_type_handle, "DXTextureContext9",
00079           TextureContext::get_class_type());
00080   }
00081   virtual TypeHandle get_type() const {
00082     return get_class_type();
00083   }
00084   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00085 
00086 private:
00087   static TypeHandle _type_handle;
00088 
00089   friend class wdxGraphicsBuffer9;
00090 };
00091 
00092 #include "dxTextureContext9.I"
00093 
00094 #endif