Index of OpenRM - RMI Library


 RMimage * rmiReadPPM (const char *  filename,
	               RMenum        format,
		       unsigned char alpha)

 char * filename - filename of PGM/PPM image file to read
 RMenum format - image format: RM_IMAGE_ALPHA, RM_IMAGE_LUMINANCE,
     RM_IMAGE_RGB, RM_IMAGE_RGBA
 unsigned char alpha - alpha for RMimage [0..255]

Read in a PGM/PPM file and return a handle to the RMimage object created from the image file. at jogoscasinoonline.eu.

Certain simplifying assumptions are made about the file format: 

    image header
       - the magic number 
       - comments (lines starting with "#") may follow 
       - the width and height follow, delineated by whitespace 
       - comments may follow 
       - maximum value parameter follows, delineated by whitespace 




P3
# this is an example 128x128 PPM file (8-bit RGB pixels)
128 128
255
[image data]




image pixels
- ASCII lines may be no more than 70 characters (PBM/PGM/PPM spec)
- image data is assumed to be ordered top to bottom, left to right
The following RMimage formats are supported: RM_IMAGE_ALPHA, RM_IMAGE_LUMINANCE, RM_IMAGE_RGB, RM_IMAGE_RGBA Bonus Fara Depunere

The user-specified image format controls how the image is read in as an RMimage: 

    PGM files: map directly to RM_IMAGE_ALPHA + RM_IMAGE_LUMINANCE
               channel replicated RGB to RM_IMAGE_RGB 
               channel replicated RGB to RM_IMAGE_RGBA with alpha




PPM files: image luminance to RM_IMAGE_ALPHA + RM_IMAGE_LUMINANCE
map directly to RM_IMAGE_RGB
map directly to RM_IMAGE_RGBA with alpha

Currently, pixels must have type RM_UNSIGNED_BYTE.

 librmi library source file: rmppm.c 

 RMenum rmiWritePPM (const char *    filename,
	             int             type,
	             const RMimage * image)

 const char * filename - filename for RMimage write
 int type - image file type (RMI_PPM_ASCII or RMI_PPM_BINARY)
 const RMimage * image - image to write

Write the user-supplied RMimage to a PGM/PPM image file. The type of file written is inferred from the RMimage format and user-supplied type. Returns RM_CHILL upon success, or RM_WHACKED upon failure.

The following RMimage formats are supported by PBM/PGM/PPM files: 

    RM_IMAGE_ALPHA, RM_IMAGE_LUMINANCE (output as PGM) 
    RM_IMAGE_RGB (outputs as PPM)
    RM_IMAGE_RGBA (outputs as PPM, alpha discarded)

The file format follows the PGM/PPM spec, as described in the docs for rmiWritePPM ().

Currently, pixel components must have type RM_UNSIGNED_BYTE.

 librmi library source file: rmppm.c