diff options
Diffstat (limited to 'base/gdevmpla.c')
| -rw-r--r-- | base/gdevmpla.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/base/gdevmpla.c b/base/gdevmpla.c index 79b29116..4103b021 100644 --- a/base/gdevmpla.c +++ b/base/gdevmpla.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2001-2021 Artifex Software, Inc. +/* Copyright (C) 2001-2022 Artifex Software, Inc. All Rights Reserved. This software is provided AS-IS with no warranty, either express or @@ -1732,6 +1732,9 @@ plane_strip_copy_rop2(gx_device_memory * mdev, int code; const gdev_mem_functions *fns; int n; + dev_proc_encode_color(*save_encode); + dev_proc_get_color_mapping_procs(*save_gcmp); + gx_color_index save_black, save_white; /* assert(planar_height == 0); */ @@ -1742,6 +1745,24 @@ plane_strip_copy_rop2(gx_device_memory * mdev, * so ensure we have the right ones in there. */ set_dev_proc(mdev, get_bits_rectangle, fns->get_bits_rectangle); set_dev_proc(mdev, fill_rectangle, fns->fill_rectangle); + /* We are about to change the number of components, so the cached black + * and white values are no longer correct. */ + save_black = mdev->cached_colors.black; + save_white = mdev->cached_colors.white; + mdev->cached_colors.black = gx_no_color_index; + mdev->cached_colors.white = gx_no_color_index; + /* The strip_copy_rop2 routine can end up trying to calculate black + * and white values. For this it will call 'get_color_mapping_procs' + * and encode_color. We can't have it calling the devices own ones + * because they assume multiple planes, not just one. Store the + * originals, and swap them out for sane ones. It's possible that + * for some crazy devices, these choices might not be perfect, + * but it's hard to see what we could do better, so those devices + * might need to implement their own strip_copy_rop2. */ + save_encode = dev_proc(mdev, encode_color); + save_gcmp = dev_proc(mdev, get_color_mapping_procs); + set_dev_proc(mdev, get_color_mapping_procs, gx_default_DevGray_get_color_mapping_procs); + set_dev_proc(mdev, encode_color, gx_default_gray_encode_color); /* mdev->color_info.depth is restored by MEM_RESTORE_PARAMS below. */ mdev->color_info.depth = mdev->planes[plane].depth; n = mdev->color_info.num_components; @@ -1750,9 +1771,14 @@ plane_strip_copy_rop2(gx_device_memory * mdev, id, scolors, textures, tcolors, x, y, width, height, phase_x, phase_y, lop, planar_height); + /* Restore color details. */ mdev->color_info.num_components = n; set_dev_proc(mdev, get_bits_rectangle, mem_planar_get_bits_rectangle); set_dev_proc(mdev, fill_rectangle, mem_planar_fill_rectangle); + set_dev_proc(mdev, encode_color, save_encode); + set_dev_proc(mdev, get_color_mapping_procs, save_gcmp); + mdev->cached_colors.black = save_black; + mdev->cached_colors.white = save_white; /* The following effectively does: mdev->line_ptrs -= mdev->height * plane; */ MEM_RESTORE_PARAMS(mdev, save); return code; |