ggi_pixellinearbuffer *ggiDBGetPLB(ggi_directbuffer_t buf);
Get the ggi_pixellinearbuffer of a buffer.
typedef struct {
void *read; /* buffer address for reads */
void *write; /* buffer address for writes */
ggi_uint page_size; /* zero for true linear buffers */
ggi_uint access; /* supported access widths */
ggi_uint align; /* alignment requirements */
ggi_uint swap; /* swapping requirements */
uintl write_mask;
/* buffer layout */
ggi_uint bpp; /* bits per pixel */
ggi_sint stride; /* pixels per row */
ggi_coord origin; /* application area origin */
ggi_coord size; /* size of application area */
char colorstring[17];/* Define the meaning of the paColor? attributes. */
/* Enumerator for often used modes for fast checks. */
ggi_common_plb_setup setup;
ggi_uint numpad; /* number of PADs */
ggi_pixelattributedesc pad[1]; /* allocate struct longer if necessary */
} ggi_pixellinearbuffer;
/* Annotation : known colorstrings are :
* - RGB
* - CMY
* - CMYK
* - K (greyscale)
* - I (indexed)
* - YUV
* - YCC
*/
Return Code: Returns a pointer to the ggi_pixellinearbuffer
structure of a buffer or NULL on error.
Example: see FIXME.