Add dev->non_strict_bounds flag.

This indicates that callers cannot assume that any calls to a
device will be clipped at device bounds. In particular the
alphabits device needs to set this as the width/height that
it uses are misleading at best.

6 files changed, 11 insertions, 6 deletions

diff --git a/base/gdevddrw.c b/base/gdevddrw.c
index 07c9c0159..240e06213 100644
--- a/base/gdevddrw.c
+++ b/base/gdevddrw.c
@@ -422,7 +422,7 @@ gx_default_fill_trapezoid(gx_device * dev, const gs_fixed_edge * left,
     bool fill_direct = color_writes_pure(pdevc, lop);
 
     if (swap_axes) {
-        if (dev->width != 0)
+        if (dev->width != 0 && dev->non_strict_bounds == 0)
         {
             /* Some devices init max->width to be int_max, which overflows when converted to fixed. */
             int dw = dev->width > max_int_in_fixed ? max_int_in_fixed : dev->width;
@@ -442,7 +442,7 @@ gx_default_fill_trapezoid(gx_device * dev, const gs_fixed_edge * left,
         else
             return gx_fill_trapezoid_as_nd(dev, left, right, ybot, ytop, 0, pdevc, lop);
     } else {
-        if (dev->height != 0)
+        if (dev->height != 0 && dev->non_strict_bounds == 0)
         {
             /* Some devices init max->height to be int_max, which overflows when converted to fixed. */
             int dh = dev->height > max_int_in_fixed ? max_int_in_fixed : dev->height;
diff --git a/base/gdevp14.c b/base/gdevp14.c
index ecf7ff355..999e3fff0 100644
--- a/base/gdevp14.c
+++ b/base/gdevp14.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2022 Artifex Software, Inc.
+/* Copyright (C) 2001-2023 Artifex Software, Inc.
    All Rights Reserved.
 
    This software is provided AS-IS with no warranty, either express or
@@ -3799,6 +3799,7 @@ gs_pdf14_device_copy_params(gx_device *dev, const gx_device *target)
     COPY_PARAM(MaxPatternBitmap);
     COPY_PARAM(graphics_type_tag);
     COPY_PARAM(interpolate_control);
+    COPY_PARAM(non_strict_bounds);
     memcpy(&(dev->space_params), &(target->space_params), sizeof(gdev_space_params));
 
     if (dev->icc_struct == NULL) {
diff --git a/base/gxclist.c b/base/gxclist.c
index 488875bad..a9abd56ff 100644
--- a/base/gxclist.c
+++ b/base/gxclist.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2022 Artifex Software, Inc.
+/* Copyright (C) 2001-2023 Artifex Software, Inc.
    All Rights Reserved.
 
    This software is provided AS-IS with no warranty, either express or
@@ -1390,6 +1390,7 @@ clist_make_accum_device(gs_memory_t *mem, gx_device *target, const char *dname,
         set_dev_proc(cwdev, set_graphics_type_tag, gx_forward_set_graphics_type_tag);
         cwdev->graphics_type_tag = target->graphics_type_tag;		/* initialize to same as target */
         cwdev->interpolate_control = target->interpolate_control;	/* initialize to same as target */
+        cwdev->non_strict_bounds = target->non_strict_bounds;	        /* initialize to same as target */
 
         /* to be set by caller: cwdev->finalize = finalize; */
 
diff --git a/base/gxdevcli.h b/base/gxdevcli.h
index 5c9831b93..ac1e731af 100644
--- a/base/gxdevcli.h
+++ b/base/gxdevcli.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2022 Artifex Software, Inc.
+/* Copyright (C) 2001-2023 Artifex Software, Inc.
    All Rights Reserved.
 
    This software is provided AS-IS with no warranty, either express or
@@ -780,6 +780,7 @@ typedef struct gdev_pagelist_s {
         gs_graphics_type_tag_t   graphics_type_tag;   /* e.g. vector, image or text */\
         int interpolate_control;      /* default 1 (use image /Interpolate value), 0 is NOINTERPOLATE. */\
                                       /* > 1 limits interpolation, < 0 forces interpolation */\
+        int non_strict_bounds;        /* If set, callers cannot rely on clipping fills etc to declared device bounds. */\
         gx_page_device_procs page_procs;       /* must be last */\
                 /* end of std_device_body */\
         gx_device_procs procs	/* object procedures */
diff --git a/base/gxdevice.h b/base/gxdevice.h
index 99dd610e9..1a8890c9a 100644
--- a/base/gxdevice.h
+++ b/base/gxdevice.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2022 Artifex Software, Inc.
+/* Copyright (C) 2001-2023 Artifex Software, Inc.
    All Rights Reserved.
 
    This software is provided AS-IS with no warranty, either express or
@@ -135,6 +135,7 @@
         0/*Profile Array*/,\
         0/* graphics_type_tag default GS_UNTOUCHED_TAG */,\
         1/* interpolate_control default 1, uses image /Interpolate flag, full device resolution */,\
+        0/*non_strict_bounds - default is to be strict*/,\
         { ins, bp, ep }
 #define std_device_part3_()\
         std_device_part3_sc(gx_default_install, gx_default_begin_page, gx_default_end_page)
diff --git a/base/gxpcmap.c b/base/gxpcmap.c
index d095af2df..e39e05d19 100644
--- a/base/gxpcmap.c
+++ b/base/gxpcmap.c
@@ -298,6 +298,7 @@ gx_pattern_accum_alloc(gs_memory_t * mem, gs_memory_t * storage_memory,
     fdev->is_planar = tdev->is_planar;
     fdev->graphics_type_tag = tdev->graphics_type_tag;
     fdev->interpolate_control = tdev->interpolate_control;
+    fdev->non_strict_bounds = tdev->non_strict_bounds;
     gx_device_forward_fill_in_procs(fdev);
     return fdev;
 }