/* This is also exported for teardown after background printing */
void
teardown_device_and_mem_for_thread(gx_device *dev, gp_thread_id thread_id, bool bg_print)
{
gx_device_clist_common *thread_cdev = (gx_device_clist_common *)dev;
gx_device_clist_reader *thread_crdev = (gx_device_clist_reader *)dev;
gs_memory_t *thread_memory = dev->memory;
/* First finish the thread */
gp_thread_finish(thread_id);
if (bg_print) {
/* we are cleaning up a background printing thread, so we clean up similarly to */
/* what is done by clist_finish_page, but without re-opening the clist files. */
clist_teardown_render_threads(dev); /* we may have used multiple threads */
/* free the thread's icc_table since this was not done by clist_finish_page */
clist_free_icc_table(thread_crdev->icc_table, thread_memory);
thread_crdev->icc_table = NULL;
/* NB: gdev_prn_free_memory below will free the color_usage_array */
} else {
/* make sure this doesn't get freed by gdev_prn_free_memory below */
((gx_device_clist_reader *)thread_cdev)->color_usage_array = NULL;
}
rc_decrement(thread_crdev->icc_cache_cl, "teardown_render_thread");
thread_crdev->icc_cache_cl = NULL;
/*
* Free the BufferSpace, close the band files, optionally unlinking them.
* We unlink the files if this call is cleaning up from bg printing.
* Note that the BufferSpace is freed using 'ppdev->buf' so the 'data'
* pointer doesn't need to be the one that the thread started with
*/
/* If this thread was being used for background printing and NumRenderingThreads > 0 */
/* the clist_setup_render_threads may have already closed these files */
if (thread_cdev->page_info.cfile != NULL)
thread_cdev->page_info.io_procs->fclose(thread_cdev->page_info.bfile, thread_cdev->page_info.bfname, bg_print);
if (thread_cdev->page_info.bfile != NULL)
thread_cdev->page_info.io_procs->fclose(thread_cdev->page_info.cfile, thread_cdev->page_info.cfname, bg_print);
thread_cdev->do_not_open_or_close_bandfiles = true; /* we already closed the files */
gdev_prn_free_memory((gx_device *)thread_cdev);
/* Free the device copy this thread used. Note that the
deviceN stuff if was allocated and copied earlier for the device
will be freed with this call and the icc_struct ref count will be decremented. */
gs_free_object(thread_memory, thread_cdev, "clist_teardown_render_threads");
#ifdef DEBUG
dmprintf(thread_memory, "rendering thread ending memory state...\n");
gs_memory_chunk_dump_memory(thread_memory);
dmprintf(thread_memory, " memory dump done.\n");
#endif
gs_memory_chunk_release(thread_memory);
}
static int
clist_process_page_mt(gx_device *dev, gx_process_page_options_t *options)
{
gx_device_printer *pdev = (gx_device_printer *)dev;
gx_device_clist *cldev = (gx_device_clist *)dev;
gx_device_clist_reader *crdev = &cldev->reader;
int band_height = crdev->page_info.band_params.BandHeight;
int band;
int num_bands = (dev->height + band_height-1)/band_height;
int code;
int reverse = !!(options->options & GX_PROCPAGE_BOTTOM_UP);
/* This page might not want multiple threads */
/* Also we don't support plane extraction using multiple threads */
if (pdev->num_render_threads_requested < 1)
return clist_process_page(dev, options);
if ((code = clist_close_writer_and_init_reader(cldev)) < 0)
return code; /* can't recover from this */
/* Haven't done any rendering yet, try to set up the threads */
if (clist_setup_render_threads(dev, reverse ? dev->height-1 : 0, options) < 0)
/* problem setting up the threads, revert to single threaded */
return clist_process_page(dev, options);
if (reverse)
{
for (band = num_bands-1; band > 0; band--)
{
code = clist_get_band_from_thread(dev, band, options);
if (code < 0)
goto free_thread_out;
}
}
else
{
for (band = 0; band < num_bands; band++)
{
code = clist_get_band_from_thread(dev, band, options);
if (code < 0)
goto free_thread_out;
}
}
/* Always free up thread stuff before exiting*/
free_thread_out:
clist_teardown_render_threads(dev);
return code;
}
/* rendering adjacent to the first band (forward or backward) */
static int
clist_get_bits_rect_mt(gx_device *dev, const gs_int_rect * prect,
gs_get_bits_params_t *params, gs_int_rect **unread)
{
gx_device_printer *pdev = (gx_device_printer *)dev;
gx_device_clist *cldev = (gx_device_clist *)dev;
gx_device_clist_common *cdev = (gx_device_clist_common *)dev;
gx_device_clist_reader *crdev = &cldev->reader;
gs_memory_t *mem = cdev->bandlist_memory;
gs_get_bits_options_t options = params->options;
int y = prect->p.y;
int end_y = prect->q.y;
int line_count = end_y - y;
int band_height = crdev->page_info.band_params.BandHeight;
int band = y / band_height;
gs_int_rect band_rect;
int lines_rasterized;
gx_device *bdev;
byte *mdata;
uint raster = bitmap_raster(dev->width * dev->color_info.depth);
int my;
int code = 0;
/* This page might not want multiple threads */
/* Also we don't support plane extraction using multiple threads */
if (pdev->num_render_threads_requested < 1 || (options & GB_SELECT_PLANES))
return clist_get_bits_rectangle(dev, prect, params, unread);
if (prect->p.x < 0 || prect->q.x > dev->width ||
y < 0 || end_y > dev->height
)
return_error(gs_error_rangecheck);
if (line_count <= 0 || prect->p.x >= prect->q.x)
return 0;
if (crdev->ymin < 0) {
if ((code = clist_close_writer_and_init_reader(cldev)) < 0)
return code;
if (clist_setup_render_threads(dev, y) < 0)
/* problem setting up the threads, revert to single threaded */
return clist_get_bits_rectangle(dev, prect, params, unread);
}
else {
if (crdev->render_threads == NULL) {
/* If we get here with with ymin >=0, it's because we closed the threads */
/* while doing a page due to an error. Use single threaded mode. */
return clist_get_bits_rectangle(dev, prect, params, unread);
}
}
/* If we already have the band's data, just return it */
if (y < crdev->ymin || end_y > crdev->ymax)
code = clist_get_band_from_thread(dev, band);
if (code < 0)
goto free_thread_out;
mdata = crdev->data + crdev->page_tile_cache_size;
if ((code = gdev_create_buf_device(cdev->buf_procs.create_buf_device,
&bdev, cdev->target, y, NULL,
mem, clist_get_band_complexity(dev,y))) < 0 ||
(code = crdev->buf_procs.setup_buf_device(bdev, mdata, raster, NULL,
y - crdev->ymin, line_count, crdev->ymax - crdev->ymin)) < 0)
goto free_thread_out;
lines_rasterized = min(band_height, line_count);
/* Return as much of the rectangle as falls within the rasterized lines. */
band_rect = *prect;
band_rect.p.y = 0;
band_rect.q.y = lines_rasterized;
code = dev_proc(bdev, get_bits_rectangle)
(bdev, &band_rect, params, unread);
cdev->buf_procs.destroy_buf_device(bdev);
if (code < 0)
goto free_thread_out;
/* Note that if called via 'get_bits', the line count will always be 1 */
if (lines_rasterized == line_count) {
return code;
}
/***** TODO: Handle the below with data from the threads *****/
/*
* We'll have to return the rectangle in pieces. Force GB_RETURN_COPY
* rather than GB_RETURN_POINTER, and require all subsequent pieces to
* use the same values as the first piece for all of the other format
* options. If copying isn't allowed, or if there are any unread
* rectangles, punt.
*/
if (!(options & GB_RETURN_COPY) || code > 0)
return gx_default_get_bits_rectangle(dev, prect, params, unread);
options = params->options;
if (!(options & GB_RETURN_COPY)) {
/* Redo the first piece with copying. */
params->options = options =
(params->options & ~GB_RETURN_ALL) | GB_RETURN_COPY;
lines_rasterized = 0;
}
{
gs_get_bits_params_t band_params;
uint raster = gx_device_raster(bdev, true);
code = gdev_create_buf_device(cdev->buf_procs.create_buf_device,
&bdev, cdev->target, y, NULL,
mem, clist_get_band_complexity(dev, y));
if (code < 0)
return code;
band_params = *params;
while ((y += lines_rasterized) < end_y) {
/* Increment data pointer by lines_rasterized. */
if (band_params.data)
band_params.data[0] += raster * lines_rasterized;
line_count = end_y - y;
code = clist_rasterize_lines(dev, y, line_count, bdev, NULL, &my);
if (code < 0)
break;
lines_rasterized = min(code, line_count);
band_rect.p.y = my;
band_rect.q.y = my + lines_rasterized;
code = dev_proc(bdev, get_bits_rectangle)
(bdev, &band_rect, &band_params, unread);
if (code < 0)
break;
params->options = options = band_params.options;
if (lines_rasterized == line_count)
break;
}
cdev->buf_procs.destroy_buf_device(bdev);
}
return code;
/* Free up thread stuff */
free_thread_out:
clist_teardown_render_threads(dev);
return code;
}
