Public Members |
 | | | ddgImage ( unsigned short ch = 4) |
| | | Create an image but don't allocate memory. More...
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| ddgImage ( unsigned short r, unsigned short c, unsigned short ch = 4)
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| | | Create an image and allocate memory.
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| ~ddgImage ()
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| | | Destroy and image.
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unsigned char* | buffer (void)
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| | | Return the data block.
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unsigned short | channels (void)
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| | | Return the number of channels in the image.
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void | channels (unsigned short c )
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| | | Set the number of channels in the image.
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unsigned short | cols (void)
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| | | Return the width of the image.
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unsigned short | rows (void)
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| | | Return the height of the image.
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bool | allocate ( unsigned short r, unsigned short c, unsigned short ch = 0 )
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| | | Allocate a image buffer to be filled by the user. Return true on error.
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void | set (unsigned short r, unsigned short c, unsigned char d1, unsigned char d2 = 0, unsigned char d3 = 0, unsigned char d4 = 0)
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| | | Set a data entry in the image.
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void | get (unsigned short r, unsigned short c, unsigned char *d1, unsigned char *d2 = 0, unsigned char *d3 = 0, unsigned char *d4 = 0)
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| | | Get a data entry in the image.
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unsigned char* | get (unsigned short r, unsigned short c, unsigned char **p)
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| | | Get a pointer to a data entry in the image.
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void | copy (unsigned short sr, unsigned short sc,unsigned short dr, unsigned short dc)
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| | | Copy a value from one place to another.
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void | import ( ddgImage * isrc, unsigned int sc, unsigned int sr, unsigned int dc, unsigned int dr, unsigned int nc, unsigned int nr)
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| | | Copy block from one image to another.
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| | bool | readMemory ( unsigned char *buf ) |
| | | Load an image buffer from a memory buffer. More...
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bool | readFile ( ddgStr *file )
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| | | Load an image buffer from a file try to determine the file automatically.
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bool | readRGB ( const char *filename)
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| | | Load an image buffer from an SGI RGB file.
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| | bool | readTGA (const char *filename) |
| | | Load an image buffer from a TGA file. More...
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bool | readPNG (const char *filename)
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| | | Load an image buffer from a PNG file.
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bool | readBW (const char *filename)
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| | | Load an image buffer from an old SGI format file.
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bool | writeTGA (const char *filename)
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| | | Save an image buffer from a file.
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bool | writePNG (const char *filename)
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| | | Save an image buffer to a file.
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| | bool | mapColorToAlpha ( unsigned char *color = NULL) |
| | | Add an alpha component to an RGB image alpha map will be transparent where the specific color is present and solid otherwise. More...
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bool | mapLuminanceToRGBA ( void )
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| | | Convert a LUMINANCE image to a full RGBA texture.
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bool | mapLuminanceToRGB ( void )
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| | | Convert a LUMINANCE image to a full RGB texture.
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bool | mapBrightNessToAlpha ( void )
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| | | Convert RGA image to RGBA image where A = ( R+G+B )/ 3.
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