Ignore:
Timestamp:
Oct 17, 2019, 3:14:01 PM (3 years ago)
Author:
alain
Message:

Introduce FBF related syscalls.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/libs/libalmosmkh/almosmkh.h

    r641 r643  
    380380#define MALLOC_INITIALIZED         0xBABEF00D   // magic number when initialised
    381381#define MALLOC_MIN_BLOCK_SIZE      0x40         // 64 bytes
    382 #define MALLOC_LOCAL_STORE_SIZE    0x800000     // 8 Mbytes     
     382#define MALLOC_LOCAL_STORE_SIZE    0x2000000    // 32 Mbytes     
    383383#define MALLOC_MAX_CLUSTERS        0x100        // 256 clusters
    384384
     
    496496/*****************************************************************************************
    497497 * This blocking function creates N working threads that execute the code defined
    498  * by the <work_func> and <work_args> arguments.
     498 * by the <work_func> and <work_args> arguments, and returns only when all working
     499 * threads completed.
    499500 * The number N of created threads is entirely defined by the <root_level> argument.
    500501 * This value defines an abstract quad-tree, with a square base : level in [0,1,2,3,4],
     
    521522                             void         * parent_barriers_array );
    522523
     524/********* Non standard (ALMOS-MKH specific) Frame Buffer access syscalls   *************/
     525
     526//////////////////////////////////////////////////////////////////////////////////////////
     527// The following system calls can be used to access the SoCLib Frame Buffer, that
     528// is a very simple graphic controller, that is seen by the software as a single
     529// buffer of <height> lines of <width> pixels.
     530//////////////////////////////////////////////////////////////////////////////////////////
     531
     532/*****************************************************************************************
     533 * This function returns in the <width> and <height> arguments the buffer size.
     534 *****************************************************************************************
     535 * @ width   : [out] number of pixels per line.
     536 * @ height  : [out] number of lines.
     537 * @ type    : [out] pixel encoding type.
     538 * @ returns 0 if success / returns -1 if error.
     539 ****************************************************************************************/
     540int fbf_get_config( int * width,
     541                    int * height,
     542                    int * type );
     543
     544/*****************************************************************************************
     545 * This blocking function moves <length> bytes from the frame buffer, starting
     546 * from <offset>, to the user buffer defined by <buffer> argument.
     547 *****************************************************************************************
     548 * @ buffer  : pointer on buffer in user space.
     549 * @ length  : number of pixels (one byte per pixel).
     550 * @ offset  : first pixel index in frame buffer.
     551 * @ returns 0 if success / returns -1 if error.
     552 ****************************************************************************************/
     553int fbf_read( void * buffer,
     554              int    length,
     555              int    offset );
     556
     557/*****************************************************************************************
     558 * This blocking function moves <length> bytes from the user buffer defined by <buffer>
     559 * argument to the frame buffer, starting at <offset> in frame buffer.
     560 *****************************************************************************************
     561 * @ buffer  : pointer on buffer in user space.
     562 * @ length  : number of pixels (one byte per pixel).
     563 * @ offset  : first pixel index in frame buffer.
     564 * @ returns 0 if success / returns -1 if error.
     565 ****************************************************************************************/
     566int fbf_write( void * buffer,
     567               int    length,
     568               int    offset );
     569
    523570#endif /* _LIBALMOSMKH_H_ */
    524571
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