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Viewing changes to src/gxmclip.c

  • Committer: Bazaar Package Importer
  • Author(s): Till Kamppeter
  • Date: 2009-01-20 16:40:45 UTC
  • mfrom: (1.1.10 upstream)
  • Revision ID: james.westby@ubuntu.com-20090120164045-lnfhi0n30o5lwhwa
Tags: 8.64.dfsg.1~svn9377-0ubuntu1
https://launchpad.net/bugs/317810
https://launchpad.net/bugs/314439
https://launchpad.net/bugs/314018
* New upstream release (SVN rev 9377)
   o Fixes many bugs concerning PDF rendering, to make the PDF printing
     workflow correctly working.
   o Fixes long-standing bugs in many drivers, like input paper tray and
     duplex options not working for the built-in PCL 4, 5, 5c, 5e, and
     6/XL drivers, PDF input not working for bjc600, bjc800, and cups
     output devices, several options not working and uninitialized
     memory with cups output device.
   o Merged nearly all patches of the Ubuntu and Debian packages upstream.
   o Fixes LP: #317810, LP: #314439, LP: #314018.
* debian/patches/03_libpaper_support.dpatch,
  debian/patches/11_gs-cjk_font_glyph_handling_fix.dpatch,
  debian/patches/12_gs-cjk_vertical_writing_metrics_fix.dpatch,
  debian/patches/13_gs-cjk_cjkps_examples.dpatch,
  debian/patches/20_bbox_segv_fix.dpatch,
  debian/patches/21_brother_7x0_gdi_fix.dpatch,
  debian/patches/22_epsn_margin_workaround.dpatch,
  debian/patches/24_gs_man_fix.dpatch,
  debian/patches/25_toolbin_insecure_tmp_usage_fix.dpatch,
  debian/patches/26_assorted_script_fixes.dpatch,
  debian/patches/29_gs_css_fix.dpatch,
  debian/patches/30_ps2pdf_man_improvement.dpatch,
  debian/patches/31_fix-gc-sigbus.dpatch,
  debian/patches/34_ftbfs-on-hurd-fix.dpatch,
  debian/patches/35_disable_libcairo.dpatch,
  debian/patches/38_pxl-duplex.dpatch,
  debian/patches/39_pxl-resolution.dpatch,
  debian/patches/42_gs-init-ps-delaybind-fix.dpatch,
  debian/patches/45_bjc600-bjc800-pdf-input.dpatch,
  debian/patches/48_cups-output-device-pdf-duplex-uninitialized-memory-fix.dpatch,
  debian/patches/50_lips4-floating-point-exception.dpatch,
  debian/patches/52_cups-device-logging.dpatch,
  debian/patches/55_pcl-input-slot-fix.dpatch,
  debian/patches/57_pxl-input-slot-fix.dpatch,
  debian/patches/60_pxl-cups-driver-pdf.dpatch,
  debian/patches/62_onebitcmyk-pdf.dpatch,
  debian/patches/65_too-big-temp-files-1.dpatch,
  debian/patches/67_too-big-temp-files-2.dpatch,
  debian/patches/70_take-into-account-data-in-stream-buffer-before-refill.dpatch:
  Removed, applied upstream.
* debian/patches/01_docdir_fix_for_debian.dpatch,
  debian/patches/02_gs_man_fix_debian.dpatch,
  debian/patches/01_docdir-fix-for-debian.dpatch,
  debian/patches/02_docdir-fix-for-debian.dpatch: Renamed patches to
  make merging with Debian easier.
* debian/patches/32_improve-handling-of-media-size-changes-from-gv.dpatch, 
  debian/patches/33_bad-params-to-xinitimage-on-large-bitmaps.dpatch:
  regenerated for new source directory structure.
* debian/rules: Corrected paths to remove cidfmap (it is in Resource/Init/
  in GS 8.64) and to install headers (source paths are psi/ and base/ now).
* debian/rules: Remove all fontmaps, as DeFoMa replaces them.
* debian/local/pdftoraster/pdftoraster.c,
  debian/local/pdftoraster/pdftoraster.convs, debian/rules: Removed
  added pdftoraster filter and use the one which comes with Ghostscript.
* debian/ghostscript.links: s/8.63/8.64/

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src/gxmclip.c
1
 
/* Copyright (C) 2001-2006 Artifex Software, Inc.
2
 
   All Rights Reserved.
3
 
  
4
 
   This software is provided AS-IS with no warranty, either express or
5
 
   implied.
6
 
 
7
 
   This software is distributed under license and may not be copied, modified
8
 
   or distributed except as expressly authorized under the terms of that
9
 
   license.  Refer to licensing information at http://www.artifex.com/
10
 
   or contact Artifex Software, Inc.,  7 Mt. Lassen Drive - Suite A-134,
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   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
12
 
*/
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/* $Id: gxmclip.c 8250 2007-09-25 13:31:24Z giles $ */
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/* Mask clipping support */
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#include "gserrors.h"
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#include "gx.h"
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#include "gxdevice.h"
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#include "gxdevmem.h"
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#include "gxmclip.h"
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/* Structure descriptor */
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public_st_device_mask_clip();
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/* GC procedures */
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static ENUM_PTRS_WITH(device_mask_clip_enum_ptrs, gx_device_mask_clip *mcdev)
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{
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    if (index < st_gx_strip_bitmap_max_ptrs) {
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        return ENUM_USING(st_gx_strip_bitmap, &mcdev->tiles,
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                          sizeof(mcdev->tiles), index);
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    }
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    index -= st_gx_strip_bitmap_max_ptrs;
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    if (index < st_device_memory_max_ptrs) {
34
 
        return ENUM_USING(st_device_memory, &mcdev->mdev,
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                          sizeof(mcdev->mdev), index);
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    }
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    ENUM_PREFIX(st_device_forward, st_device_memory_max_ptrs);
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}
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ENUM_PTRS_END
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static RELOC_PTRS_WITH(device_mask_clip_reloc_ptrs, gx_device_mask_clip *mcdev)
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{
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    RELOC_PREFIX(st_device_forward);
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    RELOC_USING(st_gx_strip_bitmap, &mcdev->tiles, sizeof(mcdev->tiles));
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    RELOC_USING(st_device_memory, &mcdev->mdev, sizeof(mcdev->mdev));
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    if (mcdev->mdev.base != 0) {
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        /*
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         * Update the line pointers specially, since they point into the
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         * buffer that is part of the mask clipping device itself.
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         */
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        long diff = (char *)RELOC_OBJ(mcdev) - (char *)mcdev;
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        int i;
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53
 
        for (i = 0; i < mcdev->mdev.height; ++i)
54
 
            mcdev->mdev.line_ptrs[i] += diff;
55
 
        mcdev->mdev.base = mcdev->mdev.line_ptrs[0];
56
 
        mcdev->mdev.line_ptrs =
57
 
            (void *)((char *)(mcdev->mdev.line_ptrs) + diff);
58
 
    }
59
 
}
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RELOC_PTRS_END
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62
 
/* Initialize a mask clipping device. */
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int
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gx_mask_clip_initialize(gx_device_mask_clip * cdev,
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                        const gx_device_mask_clip * proto,
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                        const gx_bitmap * bits, gx_device * tdev,
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                        int tx, int ty, gs_memory_t *mem)
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{
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    int buffer_width = bits->size.x;
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    int buffer_height =
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        tile_clip_buffer_size / (bits->raster + sizeof(byte *));
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73
 
    gx_device_init((gx_device *)cdev, (const gx_device *)proto,
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                   mem, true);
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    cdev->width = tdev->width;
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    cdev->height = tdev->height;
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    cdev->color_info = tdev->color_info;
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    gx_device_set_target((gx_device_forward *)cdev, tdev);
79
 
    cdev->phase.x = -tx;
80
 
    cdev->phase.y = -ty;
81
 
    if (buffer_height > bits->size.y)
82
 
        buffer_height = bits->size.y;
83
 
    gs_make_mem_mono_device(&cdev->mdev, 0, 0);
84
 
    for (;;) {
85
 
        ulong bitmap_size = max_ulong;
86
 
 
87
 
        if (buffer_height <= 0) {
88
 
            /*
89
 
             * The tile is too wide to buffer even one scan line.
90
 
             * We could do copy_mono in chunks, but for now, we punt.
91
 
             */
92
 
            cdev->mdev.base = 0;
93
 
            return_error(gs_error_VMerror);
94
 
        }
95
 
        cdev->mdev.width = buffer_width;
96
 
        cdev->mdev.height = buffer_height;
97
 
        gdev_mem_bitmap_size(&cdev->mdev, &bitmap_size);
98
 
        if (bitmap_size <= tile_clip_buffer_size)
99
 
            break;
100
 
        buffer_height--;
101
 
    }
102
 
    cdev->mdev.base = cdev->buffer.bytes;
103
 
    return (*dev_proc(&cdev->mdev, open_device))((gx_device *)&cdev->mdev);
104
 
}