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- /* Copyright (C) 1997 Aladdin Enterprises. All rights reserved.
-
- This file is part of Aladdin Ghostscript.
-
- Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author
- or distributor accepts any responsibility for the consequences of using it,
- or for whether it serves any particular purpose or works at all, unless he
- or she says so in writing. Refer to the Aladdin Ghostscript Free Public
- License (the "License") for full details.
-
- Every copy of Aladdin Ghostscript must include a copy of the License,
- normally in a plain ASCII text file named PUBLIC. The License grants you
- the right to copy, modify and redistribute Aladdin Ghostscript, but only
- under certain conditions described in the License. Among other things, the
- License requires that the copyright notice and this notice be preserved on
- all copies.
- */
-
- /* gxclpage.c */
- /* Page object management */
- #include "gdevprn.h"
- #include "gxcldev.h"
- #include "gxclpage.h"
-
- /* Save a page. */
- int
- gdev_prn_save_page(gx_device_printer *pdev, gx_saved_page *page,
- int num_copies)
- { int code;
-
- /* Make sure we are banding. */
- if ( !pdev->buffer_space )
- return_error(gs_error_rangecheck);
- if ( strlen(pdev->dname) >= sizeof(page->dname) )
- return_error(gs_error_limitcheck);
- #define pcldev ((gx_device_clist_writer *)pdev)
- if ( (code = clist_end_page(pcldev)) < 0 ||
- (code = clist_fclose(pcldev->page_cfile, pcldev->page_cfname, false)) < 0 ||
- (code = clist_fclose(pcldev->page_bfile, pcldev->page_bfname, false)) < 0
- )
- return code;
- /* Save the device information. */
- memcpy(&page->device, pdev, sizeof(gx_device));
- strcpy(page->dname, pdev->dname);
- /* Save the page information. */
- page->info = pcldev->page_info;
- page->info.cfile = 0;
- page->info.bfile = 0;
- #undef pcldev
- /* Save other information. */
- page->num_copies = num_copies;
- return (*gs_clist_device_procs.open_device)((gx_device *)pdev);
- }
-
- /* Render an array of saved pages. */
- int
- gdev_prn_render_pages(gx_device_printer *pdev,
- const gx_placed_page *ppages, int count)
- {
- #define pcldev ((gx_device_clist_reader *)pdev)
-
- /* Check to make sure the pages are compatible with the device. */
- { int i;
- gx_band_params params;
-
- for ( i = 0; i < count; ++i )
- { const gx_saved_page *page = ppages[i].page;
- /* We would like to fully check the color representation, */
- /* but we don't have enough information to do that. */
- if ( strcmp(page->dname, pdev->dname) != 0 ||
- memcmp(&page->device.color_info, &pdev->color_info,
- sizeof(pdev->color_info)) != 0
- )
- return_error(gs_error_rangecheck);
- /* Currently we don't allow translation in Y. */
- if ( ppages[i].offset.y != 0 )
- return_error(gs_error_rangecheck);
- /* Make sure the band parameters are compatible. */
- if ( page->info.band_params.BandBufferSpace !=
- pdev->buffer_space ||
- page->info.band_params.BandWidth !=
- pdev->width
- )
- return_error(gs_error_rangecheck);
- /* Currently we require all band heights to be the same. */
- if ( i == 0 )
- params = page->info.band_params;
- else if ( page->info.band_params.BandHeight !=
- params.BandHeight
- )
- return_error(gs_error_rangecheck);
- }
- }
- /* Set up the page list in the device. */
- /****** SHOULD FACTOR THIS OUT OF clist_render_init ******/
- pcldev->ymin = pcldev->ymax = 0;
- pcldev->pages = ppages;
- pcldev->num_pages = count;
- #undef pcldev
- /* Render the pages. */
- { int code = (*dev_proc(pdev, output_page))
- ((gx_device *)pdev, ppages[0].page->num_copies, true);
- /* Delete the temporary files. */
- int i;
-
- for ( i = 0; i < count; ++i )
- { const gx_saved_page *page = ppages[i].page;
- clist_unlink(page->info.cfname);
- clist_unlink(page->info.bfname);
- }
- return code;
- }
- }
-