2 * Copyright (C) 2005-2013 Team XBMC
5 * This Program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2, or (at your option)
10 * This Program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with XBMC; see the file COPYING. If not, see
17 * <http://www.gnu.org/licenses/>.
25 #include "utils/StdString.h"
27 #include "guilib/imagefactory.h"
30 struct COLOR {unsigned char b,g,r,x;}; // Windows GDI expects 4bytes per color
40 \brief Base texture class, subclasses of which depend on the render spec (DX, GL etc.)
46 CBaseTexture(unsigned int width = 0, unsigned int height = 0, unsigned int format = XB_FMT_A8R8G8B8);
48 virtual ~CBaseTexture();
50 /*! \brief Load a texture from a file
51 Loads a texture from a file, restricting in size if needed based on maxHeight and maxWidth.
52 Note that these are the ideal size to load at - the returned texture may be smaller or larger than these.
53 \param texturePath the path of the texture to load.
54 \param idealWidth the ideal width of the texture (defaults to 0, no ideal width).
55 \param idealHeight the ideal height of the texture (defaults to 0, no ideal height).
56 \param autoRotate whether the textures should be autorotated based on EXIF information (defaults to false).
57 \param strMimeType mimetype of the given texture if available (defaults to empty)
58 \return a CBaseTexture pointer to the created texture - NULL if the texture failed to load.
60 static CBaseTexture *LoadFromFile(const CStdString& texturePath, unsigned int idealWidth = 0, unsigned int idealHeight = 0,
61 bool autoRotate = false, bool requirePixels = false, const std::string& strMimeType = "");
63 /*! \brief Load a texture from a file in memory
64 Loads a texture from a file in memory, restricting in size if needed based on maxHeight and maxWidth.
65 Note that these are the ideal size to load at - the returned texture may be smaller or larger than these.
66 \param buffer the memory buffer holding the file.
67 \param bufferSize the size of buffer.
68 \param mimeType the mime type of the file in buffer.
69 \param idealWidth the ideal width of the texture (defaults to 0, no ideal width).
70 \param idealHeight the ideal height of the texture (defaults to 0, no ideal height).
71 \return a CBaseTexture pointer to the created texture - NULL if the texture failed to load.
73 static CBaseTexture *LoadFromFileInMemory(unsigned char* buffer, size_t bufferSize, const std::string& mimeType,
74 unsigned int idealWidth = 0, unsigned int idealHeight = 0);
76 bool LoadFromMemory(unsigned int width, unsigned int height, unsigned int pitch, unsigned int format, bool hasAlpha, unsigned char* pixels);
77 bool LoadPaletted(unsigned int width, unsigned int height, unsigned int pitch, unsigned int format, const unsigned char *pixels, const COLOR *palette);
79 bool HasAlpha() const;
81 virtual void CreateTextureObject() = 0;
82 virtual void DestroyTextureObject() = 0;
83 virtual void LoadToGPU() = 0;
84 virtual void BindToUnit(unsigned int unit) = 0;
86 unsigned char* GetPixels() const { return m_pixels; }
87 unsigned int GetPitch() const { return GetPitch(m_textureWidth); }
88 unsigned int GetRows() const { return GetRows(m_textureHeight); }
89 unsigned int GetTextureWidth() const { return m_textureWidth; }
90 unsigned int GetTextureHeight() const { return m_textureHeight; }
91 unsigned int GetWidth() const { return m_imageWidth; }
92 unsigned int GetHeight() const { return m_imageHeight; }
93 /*! \brief return the original width of the image, before scaling/cropping */
94 unsigned int GetOriginalWidth() const { return m_originalWidth; }
95 /*! \brief return the original height of the image, before scaling/cropping */
96 unsigned int GetOriginalHeight() const { return m_originalHeight; }
98 int GetOrientation() const { return m_orientation; }
99 void SetOrientation(int orientation) { m_orientation = orientation; }
101 void Update(unsigned int width, unsigned int height, unsigned int pitch, unsigned int format, const unsigned char *pixels, bool loadToGPU);
102 void Allocate(unsigned int width, unsigned int height, unsigned int format);
105 static unsigned int PadPow2(unsigned int x);
106 static bool SwapBlueRed(unsigned char *pixels, unsigned int height, unsigned int pitch, unsigned int elements = 4, unsigned int offset=0);
109 // no copy constructor
110 CBaseTexture(const CBaseTexture ©);
113 bool LoadFromFileInMem(unsigned char* buffer, size_t size, const std::string& mimeType,
114 unsigned int maxWidth, unsigned int maxHeight);
115 bool LoadFromFileInternal(const CStdString& texturePath, unsigned int maxWidth, unsigned int maxHeight, bool autoRotate, bool requirePixels, const std::string& strMimeType = "");
116 bool LoadIImage(IImage* pImage, unsigned char* buffer, unsigned int bufSize, unsigned int width, unsigned int height, bool autoRotate=false);
117 // helpers for computation of texture parameters for compressed textures
118 unsigned int GetPitch(unsigned int width) const;
119 unsigned int GetRows(unsigned int height) const;
120 unsigned int GetBlockSize() const;
122 unsigned int m_imageWidth;
123 unsigned int m_imageHeight;
124 unsigned int m_textureWidth;
125 unsigned int m_textureHeight;
126 unsigned int m_originalWidth; ///< original image width before scaling or cropping
127 unsigned int m_originalHeight; ///< original image height before scaling or cropping
129 unsigned char* m_pixels;
131 unsigned int m_format;
136 #if defined(HAS_OMXPLAYER)
137 #include "TexturePi.h"
138 #define CTexture CPiTexture
139 #elif defined(HAS_GL) || defined(HAS_GLES)
140 #include "TextureGL.h"
141 #define CTexture CGLTexture
142 #elif defined(HAS_DX)
143 #include "TextureDX.h"
144 #define CTexture CDXTexture