void heap_release(char *base, char *block)
{
_kernel_oserror *e;
heapcb *cb;
int errnum;
int change;
unsigned int actual_change;
cb = getcb(base);
if (cb == NULL)
return; /* unknown heap */
/* MemCheck_UnRegisterMiscBlock(block); */
/* Release the block */
_swi(OS_Heap, _INR(0,2), 3, base, block);
/* Current SWI methods don't let us easily get at the returned R3, so we
* use our own assembler veneer */
e = xosheap_resize_r3(base, INT_MIN, &change);
/* MemCheck_RegisterMiscBlock(e, sizeof(e->errnum)); */
errnum = e->errnum;
/* MemCheck_UnRegisterMiscBlock(e); */
if (errnum != 0x187 /* Can't shrink heap any further */)
_swi(OS_GenerateError, _IN(0), e);
/* Shrink the dynamic area (note this needs to occur before the shrink of
* the heap itself, since we need the actual size change) */
_swi(OS_ChangeDynamicArea, _INR(0,1)|_OUT(1), cb->area, -change,
&actual_change);
/* Shrink the heap by the actual size change */
_swi(OS_Heap, _INR(0,1)|_IN(3), 5, base, change - actual_change);
}
char *heap_claim(char *base, size_t required_size)
{
_kernel_oserror *e;
int largest;
unsigned int actual_change;
void *block;
heapcb *cb;
if (required_size == 0)
return NULL;
cb = getcb(base);
if (cb == NULL)
return NULL; /* unknown heap */
/* Repeatedly attempt to claim a block of the required size */
while ((e = _swix(OS_Heap, _INR(0,1)|_IN(3)|_OUT(2), 2, base,
required_size, &block)) != NULL)
{
int errnum;
/* MemCheck_RegisterMiscBlock(e, sizeof(e->errnum)); */
errnum = e->errnum;
/* MemCheck_UnRegisterMiscBlock(e); */
if (errnum != 0x184 /* Heap Full */)
{
#ifndef NDEBUG
EC(e);
#endif
return NULL; /* unknown error */
}
/* Read largest free space */
_swi(OS_Heap, _INR(0,1)|_OUT(2), 1, base, &largest);
/* Increase the dynamic area by at least the difference between what we
* want and what we have spare */
if (EC(_swix(OS_ChangeDynamicArea, _INR(0,1)|_OUT(1), cb->area,
required_size - largest, &actual_change)) != NULL)
return NULL; /* (most likely) out of memory */
/* Resize the heap itself */
_swi(OS_Heap, _INR(0,1)|_IN(3), 5, base, actual_change);
}
/* MemCheck_RegisterMiscBlock(block, required_size); */
return block;
}
char *heap_create(const char *description, size_t size_limit)
{
heapcb *cb;
int page_size;
/* Get a new heapcb and link it into the start of the chain */
cb = malloc(sizeof(heapcb));
if (cb == NULL)
return NULL; /* failed - unable to allocate space for control block */
cb->next = first_cb;
first_cb = cb;
/* Create a dynamic area at least one page in size and set it up as a heap
*/
_swi(OS_ReadMemMapInfo, _OUT(0), &page_size);
if (EC(_swix(OS_DynamicArea, _INR(0,8)|_OUT(1)|_OUT(3), 0, -1, page_size,
-1, 0x80, size_limit, NULL, -1, description, &cb->area,
&cb->base)))
{
free(cb);
return NULL;
}
/* page_size must be enough to hold the default heap structure */
_swi(OS_Heap, _INR(0,1)|_IN(3), 0, cb->base, page_size);
return cb->base;
}
void ro_gui_options_image_redraw(wimp_draw *redraw)
{
osbool more;
os_error *error;
wimp_icon_state icon_state;
osspriteop_header *bg = NULL, *fg = NULL;
unsigned int bg_tinct = 0, fg_tinct = 0;
/* get the icon location */
icon_state.w = redraw->w;
icon_state.i = IMAGE_CURRENT_DISPLAY;
error = xwimp_get_icon_state(&icon_state);
if (error) {
LOG("xwimp_get_icon_state: 0x%x: %s",
error->errnum, error->errmess);
ro_warn_user("MenuError", error->errmess);
return;
}
/* find the sprites */
if (example_images) {
ro_gui_options_image_read(redraw->w, &bg_tinct, &fg_tinct);
fg_tinct |= 0xeeeeee00;
xosspriteop_select_sprite(osspriteop_USER_AREA,
example_images, (osspriteop_id)"img_bg", &bg);
xosspriteop_select_sprite(osspriteop_USER_AREA,
example_images, (osspriteop_id)"img_fg", &fg);
}
/* perform the redraw */
more = wimp_redraw_window(redraw);
while (more) {
int origin_x, origin_y;
origin_x = redraw->box.x0 - redraw->xscroll +
icon_state.icon.extent.x0 + 2;
origin_y = redraw->box.y1 - redraw->yscroll +
icon_state.icon.extent.y0 + 2;
if (bg)
_swix(Tinct_Plot, _INR(2,4) | _IN(7),
bg, origin_x, origin_y, bg_tinct);
if (fg)
_swix(Tinct_PlotAlpha, _INR(2,4) | _IN(7),
fg, origin_x, origin_y, fg_tinct);
more = wimp_get_rectangle(redraw);
}
}
/*
* close_output
*
* close output file, if it not stdout
*/
BOOL write_output(HSCPRC * hp)
{
#define MAX_ERRORLEN 500
STRPTR outfilenm = NULL;
BOOL written = FALSE;
if (outfilename)
outfilenm = estr2str(outfilename);
if ((return_code == RC_OK)
|| (return_code == RC_WARN)
|| hp->debug) {
FILE *outfile = NULL; /* output file */
char buf[MAX_ERRORLEN + 2]; /* buffer for error string */
/*
* try to open output file
*/
if (outfilenm) {
errno = 0;
outfile = fopen(outfilenm, "w");
if (!outfile) {
strncpy(buf, "unable to open `", MAX_ERRORLEN);
strncat(buf, estr2str(outfilename),
MAX_ERRORLEN - strlen(buf));
strncat(buf, "' for output: ", MAX_ERRORLEN - strlen(buf));
strncat(buf, strerror(errno), MAX_ERRORLEN - strlen(buf));
status_error(buf);
}
} else {
outfile = stdout;
outfilenm = STDOUT_NAME;
}
/*
* write output
*/
if (outfile) {
DLNODE *nd = dll_first(outlist);
status_msg("writing output...");
errno = 0;
/* write whole list of output-strings */
while (nd && !errno) {
EXPSTR *outstring = (EXPSTR *) dln_data(nd);
nd = dln_next(nd);
fwrite(estr2str(outstring), sizeof(char),
estrlen(outstring), outfile);
}
/* handle write-error, display message */
if (errno) {
strncpy(buf, "error writing `", MAX_ERRORLEN);
strncat(buf, outfilenm, MAX_ERRORLEN - strlen(buf));
strncat(buf, "': ", MAX_ERRORLEN - strlen(buf));
strncat(buf, strerror(errno), MAX_ERRORLEN - strlen(buf));
status_error(buf);
} else
written = TRUE;
status_clear();
/* close output file */
if (outfile != stdout)
{
fclose(outfile);
#ifdef RISCOS
{
/* set the filetype to HTML (&FAF) */
char *riscos_filename=unixname_to_riscos(outfilenm);
_swix(OS_File,_IN(0)|_IN(1)|_IN(2),18,riscos_filename,0xFAF);
free(riscos_filename);
}
#endif
}
}
} else {
status_msg("no output written");
status_lf();
}
return (written);
}
bool artworks_convert(struct content *c)
{
artworks_content *aw = (artworks_content *) c;
union content_msg_data msg_data;
const char *source_data;
unsigned long source_size;
void *init_workspace;
void *init_routine;
os_error *error;
int used = -1; /* slightly better with older OSLib versions */
char *title;
/* check whether AWViewer has been seen and we can therefore
locate the ArtWorks rendering modules */
xos_read_var_val_size("Alias$LoadArtWorksModules", 0, os_VARTYPE_STRING,
&used, NULL, NULL);
if (used >= 0) {
LOG("Alias$LoadArtWorksModules not defined");
msg_data.error = messages_get("AWNotSeen");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
/* load the modules, or do nothing if they're already loaded */
error = xos_cli("LoadArtWorksModules");
if (error) {
LOG("xos_cli: 0x%x: %s", error->errnum, error->errmess);
msg_data.error = error->errmess;
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
/* lookup the addresses of the init and render routines */
error = (os_error*)_swix(AWRender_FileInitAddress, _OUT(0) | _OUT(1),
&init_routine, &init_workspace);
if (error) {
LOG("AWRender_FileInitAddress: 0x%x: %s", error->errnum, error->errmess);
msg_data.error = error->errmess;
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
error = (os_error*)_swix(AWRender_RenderAddress, _OUT(0) | _OUT(1),
&aw->render_routine,
&aw->render_workspace);
if (error) {
LOG("AWRender_RenderAddress: 0x%x: %s", error->errnum, error->errmess);
msg_data.error = error->errmess;
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
source_data = content__get_source_data(c, &source_size);
/* initialise (convert file to new format if required) */
error = awrender_init(&source_data, &source_size,
init_routine, init_workspace);
if (error) {
LOG("awrender_init: 0x%x : %s", error->errnum, error->errmess);
msg_data.error = error->errmess;
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
error = (os_error*)_swix(AWRender_DocBounds,
_IN(0) | _OUT(2) | _OUT(3) | _OUT(4) | _OUT(5),
source_data,
&aw->x0,
&aw->y0,
&aw->x1,
&aw->y1);
if (error) {
LOG("AWRender_DocBounds: 0x%x: %s", error->errnum, error->errmess);
msg_data.error = error->errmess;
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
LOG("bounding box: %d,%d,%d,%d", aw->x0, aw->y0, aw->x1, aw->y1);
/* create the resizable workspace required by the
ArtWorksRenderer rendering routine */
aw->size = INITIAL_BLOCK_SIZE;
aw->block = malloc(INITIAL_BLOCK_SIZE);
if (!aw->block) {
LOG("failed to create block for ArtworksRenderer");
msg_data.error = messages_get("NoMemory");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
c->width = (aw->x1 - aw->x0) / 512;
c->height = (aw->y1 - aw->y0) / 512;
title = messages_get_buff("ArtWorksTitle",
nsurl_access_leaf(llcache_handle_get_url(c->llcache)),
c->width, c->height);
if (title != NULL) {
content__set_title(c, title);
free(title);
}
content_set_ready(c);
content_set_done(c);
/* Done: update status bar */
content_set_status(c, "");
return true;
}
_kernel_oserror *SWI_OS_CLI(const char *cmd)
{ /* execute a command */
return _swix(OS_CLI,_IN(0),cmd);
}
_kernel_oserror *SWI_OS_File_1(const char *filename, unsigned int loadaddr,
unsigned int execaddr, int attrib)
{ /* write file attributes */
return _swix(OS_File,_INR(0,3)|_IN(5),1,filename,loadaddr,execaddr,attrib);
}
_kernel_oserror *SWI_OS_FSControl_27(const char *filename, int actionmask)
{ /* wipe */
return _swix(OS_FSControl,_INR(0,1)|_IN(3),27,filename,actionmask);
}
_kernel_oserror *SWI_DDEUtils_Prefix(const char *dir)
{ /* sets the 'prefix' directory */
return _swix(DDEUtils_Prefix,_IN(0),dir);
}
