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- /* Copyright (C) 1989, 1995, 1996 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.
- */
-
- /* gdevm1.c */
- /* Monobit "memory" (stored bitmap) device */
- #include "memory_.h"
- #include "gx.h"
- #include "gxdevice.h"
- #include "gxdevmem.h" /* semi-public definitions */
- #include "gdevmem.h" /* private definitions */
-
- extern dev_proc_strip_copy_rop(mem_mono_strip_copy_rop); /* in gdevmrop.c */
-
- /* Optionally, use the slow RasterOp implementations for testing. */
- /*#define USE_COPY_ROP*/
-
- #ifdef USE_COPY_ROP
- #include "gsrop.h"
- #endif
-
- /* ================ Standard (byte-oriented) device ================ */
-
- /* We went to a lot of trouble to optimize mem_mono_tile_rectangle. */
- /* It has a substantial effect on the total time at high resolutions. */
- /* However, it takes quite a lot of code, so we omit it on 16-bit systems. */
- #define OPTIMIZE_TILE (arch_sizeof_int > 2)
-
- /* Procedures */
- private dev_proc_map_rgb_color(mem_mono_map_rgb_color);
- private dev_proc_map_color_rgb(mem_mono_map_color_rgb);
- private dev_proc_copy_mono(mem_mono_copy_mono);
- private dev_proc_fill_rectangle(mem_mono_fill_rectangle);
- #if OPTIMIZE_TILE
- private dev_proc_strip_tile_rectangle(mem_mono_strip_tile_rectangle);
- #else
- # define mem_mono_strip_tile_rectangle gx_default_strip_tile_rectangle
- #endif
-
- /* The device descriptor. */
- /* The instance is public. */
- const gx_device_memory far_data mem_mono_device =
- mem_full_alpha_device("image1", 0, 1, mem_open,
- mem_mono_map_rgb_color, mem_mono_map_color_rgb,
- mem_mono_copy_mono, gx_default_copy_color, mem_mono_fill_rectangle,
- mem_get_bits, gx_default_map_cmyk_color, gx_no_copy_alpha,
- mem_mono_strip_tile_rectangle, mem_mono_strip_copy_rop);
-
- /* Map color to/from RGB. This may be inverted. */
- private gx_color_index
- mem_mono_map_rgb_color(gx_device *dev, gx_color_value r, gx_color_value g,
- gx_color_value b)
- { return (gx_default_w_b_map_rgb_color(dev, r, g, b) ^
- mdev->palette.data[0]) & 1;
- }
- private int
- mem_mono_map_color_rgb(gx_device *dev, gx_color_index color,
- gx_color_value prgb[3])
- { return gx_default_w_b_map_color_rgb(dev,
- (color ^ mdev->palette.data[0]) & 1,
- prgb);
- }
-
- /* Fill a rectangle with a color. */
- private int
- mem_mono_fill_rectangle(gx_device *dev, int x, int y, int w, int h,
- gx_color_index color)
- {
- #ifdef USE_COPY_ROP
- return mem_mono_copy_rop(dev, NULL, 0, 0, gx_no_bitmap_id, NULL,
- NULL, NULL,
- x, y, w, h, 0, 0,
- (color ? rop3_1 : rop3_0));
- #else
- fit_fill(dev, x, y, w, h);
- bits_fill_rectangle(scan_line_base(mdev, y), x, mdev->raster,
- -(mono_fill_chunk)color, w, h);
- return 0;
- #endif
- }
-
- /* Convert x coordinate to byte offset in scan line. */
- #define x_to_byte(x) ((x) >> 3)
-
- /* Copy a monochrome bitmap. */
- #undef mono_masks
- #define mono_masks mono_copy_masks
-
- /* Fetch a chunk from the source. */
- /* The source data are always stored big-endian. */
- /* Note that the macros always cast cptr, */
- /* so it doesn't matter what the type of cptr is. */
- /* cshift = chunk_bits - shift. */
- #undef chunk
- #if arch_is_big_endian
- # define chunk uint
- # define cfetch_right(cptr, shift, cshift)\
- (cfetch_aligned(cptr) >> shift)
- # define cfetch_left(cptr, shift, cshift)\
- (cfetch_aligned(cptr) << shift)
- /* Fetch a chunk that straddles a chunk boundary. */
- # define cfetch2(cptr, cskew, skew)\
- (cfetch_left(cptr, cskew, skew) +\
- cfetch_right((const chunk *)(cptr) + 1, skew, cskew))
- #else /* little-endian */
- # define chunk bits16
- private const bits16 right_masks2[9] = {
- 0xffff, 0x7f7f, 0x3f3f, 0x1f1f, 0x0f0f, 0x0707, 0x0303, 0x0101, 0x0000
- };
- private const bits16 left_masks2[9] = {
- 0xffff, 0xfefe, 0xfcfc, 0xf8f8, 0xf0f0, 0xe0e0, 0xc0c0, 0x8080, 0x0000
- };
- # define ccont(cptr, off) (((const chunk *)(cptr))[off])
- # define cfetch_right(cptr, shift, cshift)\
- ((shift) < 8 ?\
- ((ccont(cptr, 0) >> (shift)) & right_masks2[shift]) +\
- (ccont(cptr, 0) << (cshift)) :\
- ((chunk)*(const byte *)(cptr) << (cshift)) & 0xff00)
- # define cfetch_left(cptr, shift, cshift)\
- ((shift) < 8 ?\
- ((ccont(cptr, 0) << (shift)) & left_masks2[shift]) +\
- (ccont(cptr, 0) >> (cshift)) :\
- ((ccont(cptr, 0) & 0xff00) >> (cshift)) & 0xff)
- /* Fetch a chunk that straddles a chunk boundary. */
- /* We can avoid testing the shift amount twice */
- /* by expanding the cfetch_left/right macros in-line. */
- # define cfetch2(cptr, cskew, skew)\
- ((cskew) < 8 ?\
- ((ccont(cptr, 0) << (cskew)) & left_masks2[cskew]) +\
- (ccont(cptr, 0) >> (skew)) +\
- (((chunk)(((const byte *)(cptr))[2]) << (cskew)) & 0xff00) :\
- (((ccont(cptr, 0) & 0xff00) >> (skew)) & 0xff) +\
- ((ccont(cptr, 1) >> (skew)) & right_masks2[skew]) +\
- (ccont(cptr, 1) << (cskew)))
- #endif
- /* Since source and destination are both always big-endian, */
- /* fetching an aligned chunk never requires byte swapping. */
- # define cfetch_aligned(cptr)\
- (*(const chunk *)(cptr))
-
- /* copy_function and copy_shift get added together for dispatch */
- typedef enum {
- copy_or = 0, copy_store, copy_and, copy_funny
- } copy_function;
- /* copy_right/left is not an enum, because compilers complain about */
- /* an enumeration clash when these are added to a copy_function. */
- #define copy_right ((copy_function)0)
- #define copy_left ((copy_function)4)
- typedef struct {
- short invert;
- ushort op; /* copy_function */
- } copy_mode;
- /* Map from <c0,c1> to copy_mode. */
- #define cm(i,op) { i, (ushort)op }
- private copy_mode copy_modes[9] = {
- cm(-1, copy_funny), /* NN */
- cm(-1, copy_and), /* N0 */
- cm(0, copy_or), /* N1 */
- cm(0, copy_and), /* 0N */
- cm(0, copy_funny), /* 00 */
- cm(0, copy_store), /* 01 */
- cm(-1, copy_or), /* 1N */
- cm(-1, copy_store), /* 10 */
- cm(0, copy_funny), /* 11 */
- };
- private int
- mem_mono_copy_mono(gx_device *dev,
- const byte *base, int sourcex, int sraster, gx_bitmap_id id,
- int x, int y, int w, int h, gx_color_index zero, gx_color_index one)
- {
- #ifdef USE_COPY_ROP
- return mem_mono_copy_rop(dev, base, sourcex, sraster, id, NULL,
- NULL, NULL,
- x, y, w, h, 0, 0,
- ((zero == gx_no_color_index ? rop3_D :
- zero == 0 ? rop3_0 : rop3_1) & ~rop3_S) |
- ((one == gx_no_color_index ? rop3_D :
- one == 0 ? rop3_0 : rop3_1) & rop3_S));
- #else /* !USE_COPY_ROP */
- register const byte *bptr; /* actually chunk * */
- int dbit, wleft;
- uint mask;
- copy_mode mode;
- #define function (copy_function)(mode.op)
- declare_scan_ptr_as(dbptr, byte *);
- #define optr ((chunk *)dbptr)
- register int skew;
- register uint invert;
- fit_copy(dev, base, sourcex, sraster, id, x, y, w, h);
- #if gx_no_color_index_value != -1 /* hokey! */
- if ( zero == gx_no_color_index ) zero = -1;
- if ( one == gx_no_color_index ) one = -1;
- #endif
- #define izero (int)zero
- #define ione (int)one
- mode = copy_modes[izero + izero + izero + ione + 4];
- #undef izero
- #undef ione
- invert = (uint)(int)mode.invert; /* load register */
- setup_rect_as(dbptr, byte *);
- bptr = base + ((sourcex & ~chunk_align_bit_mask) >> 3);
- dbit = x & chunk_align_bit_mask;
- skew = dbit - (sourcex & chunk_align_bit_mask);
- /* Macros for writing partial chunks. */
- /* The destination pointer is always named optr, */
- /* and must be declared as chunk *. */
- /* cinvert may be temporarily redefined. */
- #define cinvert(bits) ((bits) ^ invert)
- #define write_or_masked(bits, mask, off)\
- optr[off] |= (cinvert(bits) & mask)
- #define write_store_masked(bits, mask, off)\
- optr[off] = ((optr[off] & ~mask) | (cinvert(bits) & mask))
- #define write_and_masked(bits, mask, off)\
- optr[off] &= (cinvert(bits) | ~mask)
- /* Macros for writing full chunks. */
- #define write_or(bits) *optr |= cinvert(bits)
- #define write_store(bits) *optr = cinvert(bits)
- #define write_and(bits) *optr &= cinvert(bits)
- /* Macro for incrementing to next chunk. */
- #define next_x_chunk\
- bptr += chunk_bytes; dbptr += chunk_bytes
- /* Common macro for the end of each scan line. */
- #define end_y_loop(sdelta, ddelta)\
- if ( --h == 0 ) break;\
- bptr += sdelta; dbptr += ddelta
- if ( (wleft = w + dbit - chunk_bits) <= 0 )
- { /* The entire operation fits in one (destination) chunk. */
- set_mono_thin_mask(mask, w, dbit);
- #define write_single(wr_op, src)\
- for ( ; ; )\
- { wr_op(src, mask, 0);\
- end_y_loop(sraster, draster);\
- }
- #define write1_loop(src)\
- switch ( function ) {\
- case copy_or: write_single(write_or_masked, src); break;\
- case copy_store: write_single(write_store_masked, src); break;\
- case copy_and: write_single(write_and_masked, src); break;\
- default: goto funny;\
- }
- if ( skew >= 0 ) /* single -> single, right/no shift */
- { if ( skew == 0 ) /* no shift */
- { write1_loop(cfetch_aligned(bptr));
- }
- else /* right shift */
- { int cskew = chunk_bits - skew;
- write1_loop(cfetch_right(bptr, skew, cskew));
- }
- }
- else if ( wleft <= skew ) /* single -> single, left shift */
- { int cskew = chunk_bits + skew;
- skew = -skew;
- write1_loop(cfetch_left(bptr, skew, cskew));
- }
- else /* double -> single */
- { int cskew = -skew;
- skew += chunk_bits;
- write1_loop(cfetch2(bptr, cskew, skew));
- }
- #undef write1_loop
- #undef write_single
- }
- else if ( wleft <= skew )
- { /* 1 source chunk -> 2 destination chunks. */
- /* This is an important special case for */
- /* both characters and halftone tiles. */
- uint rmask;
- int cskew = chunk_bits - skew;
- set_mono_left_mask(mask, dbit);
- set_mono_right_mask(rmask, wleft);
- #undef cinvert
- #define cinvert(bits) (bits) /* pre-inverted here */
- #if arch_is_big_endian /* no byte swapping */
- # define write_1to2(wr_op)\
- for ( ; ; )\
- { register uint bits = cfetch_aligned(bptr) ^ invert;\
- wr_op(bits >> skew, mask, 0);\
- wr_op(bits << cskew, rmask, 1);\
- end_y_loop(sraster, draster);\
- }
- #else /* byte swapping */
- # define write_1to2(wr_op)\
- for ( ; ; )\
- { wr_op(cfetch_right(bptr, skew, cskew) ^ invert, mask, 0);\
- wr_op(cfetch_left(bptr, cskew, skew) ^ invert, rmask, 1);\
- end_y_loop(sraster, draster);\
- }
- #endif
- switch ( function )
- {
- case copy_or: write_1to2(write_or_masked); break;
- case copy_store: write_1to2(write_store_masked); break;
- case copy_and: write_1to2(write_and_masked); break;
- default: goto funny;
- }
- #undef cinvert
- #define cinvert(bits) ((bits) ^ invert)
- #undef write_1to2
- }
- else
- { /* More than one source chunk and more than one */
- /* destination chunk are involved. */
- uint rmask;
- int words = (wleft & ~chunk_bit_mask) >> 3;
- uint sskip = sraster - words;
- uint dskip = draster - words;
- register uint bits;
- set_mono_left_mask(mask, dbit);
- set_mono_right_mask(rmask, wleft & chunk_bit_mask);
- if ( skew == 0 ) /* optimize the aligned case */
- {
- #define write_aligned(wr_op, wr_op_masked)\
- for ( ; ; )\
- { int count = wleft;\
- /* Do first partial chunk. */\
- wr_op_masked(cfetch_aligned(bptr), mask, 0);\
- /* Do full chunks. */\
- while ( (count -= chunk_bits) >= 0 )\
- { next_x_chunk; wr_op(cfetch_aligned(bptr)); }\
- /* Do last chunk */\
- if ( count > -chunk_bits )\
- { wr_op_masked(cfetch_aligned(bptr + chunk_bytes), rmask, 1); }\
- end_y_loop(sskip, dskip);\
- }
- switch ( function )
- {
- case copy_or:
- write_aligned(write_or, write_or_masked);
- break;
- case copy_store:
- write_aligned(write_store, write_store_masked);
- break;
- case copy_and:
- write_aligned(write_and, write_and_masked);
- break;
- default:
- goto funny;
- }
- #undef write_aligned
- }
- else /* not aligned */
- { int ccase =
- (skew >= 0 ? copy_right :
- ((bptr += chunk_bytes), copy_left))
- + (int)function;
- int cskew = -skew & chunk_bit_mask;
- skew &= chunk_bit_mask;
- for ( ; ; )
- { int count = wleft;
- #define prefetch_right\
- bits = cfetch_right(bptr, skew, cskew)
- #define prefetch_left\
- bits = cfetch2(bptr - chunk_bytes, cskew, skew)
- #define write_unaligned(wr_op, wr_op_masked)\
- wr_op_masked(bits, mask, 0);\
- /* Do full chunks. */\
- while ( count >= chunk_bits )\
- { bits = cfetch2(bptr, cskew, skew);\
- next_x_chunk; wr_op(bits); count -= chunk_bits;\
- }\
- /* Do last chunk */\
- if ( count > 0 )\
- { bits = cfetch_left(bptr, cskew, skew);\
- if ( count > skew ) bits += cfetch_right(bptr + chunk_bytes, skew, cskew);\
- wr_op_masked(bits, rmask, 1);\
- }
- switch ( ccase )
- {
- case copy_or + copy_left:
- prefetch_left; goto uor;
- case copy_or + copy_right:
- prefetch_right;
- uor: write_unaligned(write_or, write_or_masked);
- break;
- case copy_store + copy_left:
- prefetch_left; goto ustore;
- case copy_store + copy_right:
- prefetch_right;
- ustore: write_unaligned(write_store, write_store_masked);
- break;
- case copy_and + copy_left:
- prefetch_left; goto uand;
- case copy_and + copy_right:
- prefetch_right;
- uand: write_unaligned(write_and, write_and_masked);
- break;
- default:
- goto funny;
- }
- end_y_loop(sskip, dskip);
- #undef write_unaligned
- #undef prefetch_left
- #undef prefetch_right
- }
- }
- }
- #undef end_y_loop
- #undef next_x_chunk
- return 0;
- /* Handle the funny cases that aren't supposed to happen. */
- funny: return (invert ? gs_note_error(-1) :
- mem_mono_fill_rectangle(dev, x, y, w, h, zero));
- #undef optr
- #endif /* !USE_COPY_ROP */
- }
-
- #if OPTIMIZE_TILE /**************** ****************/
-
- /* Strip-tile with a monochrome halftone. */
- /* This is a performance bottleneck for monochrome devices, */
- /* so we re-implement it, even though it takes a lot of code. */
- private int
- mem_mono_strip_tile_rectangle(gx_device *dev,
- register const gx_strip_bitmap *tiles,
- int tx, int y, int tw, int th, gx_color_index color0, gx_color_index color1,
- int px, int py)
- {
- #ifdef USE_COPY_ROP
- return mem_mono_strip_copy_rop(dev, NULL, 0, 0, tile->id, NULL,
- tiles, NULL,
- tx, y, tw, th, px, py,
- ((color0 == gx_no_color_index ? rop3_D :
- color0 == 0 ? rop3_0 : rop3_1) & ~rop3_T) |
- ((color1 == gx_no_color_index ? rop3_D :
- color1 == 0 ? rop3_0 : rop3_1) & rop3_T));
- #else /* !USE_COPY_ROP */
- register uint invert;
- int sraster;
- uint tile_bits_size;
- const byte *base;
- const byte *end;
- int x, rw, w, h;
- register const byte *bptr; /* actually chunk * */
- int dbit, wleft;
- uint mask;
- byte *dbase;
- declare_scan_ptr_as(dbptr, byte *);
- #define optr ((chunk *)dbptr)
- register int skew;
-
- /* This implementation doesn't handle strips yet. */
- if ( color0 != (color1 ^ 1) || tiles->shift != 0 )
- return gx_default_strip_tile_rectangle(dev, tiles, tx, y, tw, th,
- color0, color1, px, py);
- fit_fill(dev, tx, y, tw, th);
- invert = -(uint)color0;
- sraster = tiles->raster;
- base = tiles->data + ((y + py) % tiles->rep_height) * sraster;
- tile_bits_size = tiles->size.y * sraster;
- end = tiles->data + tile_bits_size;
- #undef end_y_loop
- #define end_y_loop(sdelta, ddelta)\
- if ( --h == 0 ) break;\
- if ( end - bptr <= sdelta ) /* wrap around */\
- bptr -= tile_bits_size;\
- bptr += sdelta; dbptr += ddelta
- draster = mdev->raster;
- dbase = scan_line_base(mdev, y);
- x = tx;
- rw = tw;
- /*
- * The outermost loop here works horizontally, one iteration per
- * copy of the tile. Note that all iterations except the first
- * have sourcex = 0.
- */
- { int sourcex = (x + px) % tiles->rep_width;
- w = tiles->size.x - sourcex;
- bptr = base + ((sourcex & ~chunk_align_bit_mask) >> 3);
- dbit = x & chunk_align_bit_mask;
- skew = dbit - (sourcex & chunk_align_bit_mask);
- }
- outer: if ( w > rw )
- w = rw;
- h = th;
- dbptr = dbase + ((x >> 3) & -chunk_align_bytes);
- if ( (wleft = w + dbit - chunk_bits) <= 0 )
- { /* The entire operation fits in one (destination) chunk. */
- set_mono_thin_mask(mask, w, dbit);
- #define write1_loop(src)\
- for ( ; ; )\
- { write_store_masked(src, mask, 0);\
- end_y_loop(sraster, draster);\
- }
- if ( skew >= 0 ) /* single -> single, right/no shift */
- { if ( skew == 0 ) /* no shift */
- { write1_loop(cfetch_aligned(bptr));
- }
- else /* right shift */
- { int cskew = chunk_bits - skew;
- write1_loop(cfetch_right(bptr, skew, cskew));
- }
- }
- else if ( wleft <= skew ) /* single -> single, left shift */
- { int cskew = chunk_bits + skew;
- skew = -skew;
- write1_loop(cfetch_left(bptr, skew, cskew));
- }
- else /* double -> single */
- { int cskew = -skew;
- skew += chunk_bits;
- write1_loop(cfetch2(bptr, cskew, skew));
- }
- #undef write1_loop
- }
- else if ( wleft <= skew )
- { /* 1 source chunk -> 2 destination chunks. */
- /* This is an important special case for */
- /* both characters and halftone tiles. */
- uint rmask;
- int cskew = chunk_bits - skew;
- set_mono_left_mask(mask, dbit);
- set_mono_right_mask(rmask, wleft);
- #if arch_is_big_endian /* no byte swapping */
- #undef cinvert
- #define cinvert(bits) (bits) /* pre-inverted here */
- for ( ; ; )
- { register uint bits = cfetch_aligned(bptr) ^ invert;
- write_store_masked(bits >> skew, mask, 0);
- write_store_masked(bits << cskew, rmask, 1);
- end_y_loop(sraster, draster);
- }
- #undef cinvert
- #define cinvert(bits) ((bits) ^ invert)
- #else /* byte swapping */
- for ( ; ; )
- { write_store_masked(cfetch_right(bptr, skew, cskew), mask, 0);
- write_store_masked(cfetch_left(bptr, cskew, skew), rmask, 1);
- end_y_loop(sraster, draster);
- }
- #endif
- }
- else
- { /* More than one source chunk and more than one */
- /* destination chunk are involved. */
- uint rmask;
- int words = (wleft & ~chunk_bit_mask) >> 3;
- uint sskip = sraster - words;
- uint dskip = draster - words;
- register uint bits;
- #define next_x_chunk\
- bptr += chunk_bytes; dbptr += chunk_bytes
-
- set_mono_right_mask(rmask, wleft & chunk_bit_mask);
- if ( skew == 0 ) /* optimize the aligned case */
- { if ( dbit == 0 )
- mask = 0;
- else
- set_mono_left_mask(mask, dbit);
- for ( ; ; )
- { int count = wleft;
- /* Do first partial chunk. */
- if ( mask )
- write_store_masked(cfetch_aligned(bptr), mask, 0);
- else
- write_store(cfetch_aligned(bptr));
- /* Do full chunks. */
- while ( (count -= chunk_bits) >= 0 )
- { next_x_chunk;
- write_store(cfetch_aligned(bptr));
- }
- /* Do last chunk */
- if ( count > -chunk_bits )
- { write_store_masked(cfetch_aligned(bptr + chunk_bytes), rmask, 1);
- }
- end_y_loop(sskip, dskip);
- }
- }
- else /* not aligned */
- { bool case_right =
- (skew >= 0 ? true :
- ((bptr += chunk_bytes), false));
- int cskew = -skew & chunk_bit_mask;
-
- skew &= chunk_bit_mask;
- set_mono_left_mask(mask, dbit);
- for ( ; ; )
- { int count = wleft;
- if ( case_right )
- bits = cfetch_right(bptr, skew, cskew);
- else
- bits = cfetch2(bptr - chunk_bytes, cskew, skew);
- write_store_masked(bits, mask, 0);
- /* Do full chunks. */
- while ( count >= chunk_bits )
- { bits = cfetch2(bptr, cskew, skew);
- next_x_chunk;
- write_store(bits);
- count -= chunk_bits;
- }
- /* Do last chunk */
- if ( count > 0 )
- { bits = cfetch_left(bptr, cskew, skew);
- if ( count > skew )
- bits += cfetch_right(bptr + chunk_bytes, skew, cskew);
- write_store_masked(bits, rmask, 1);
- }
- end_y_loop(sskip, dskip);
- }
- }
- }
- #undef end_y_loop
- #undef next_x_chunk
- #undef optr
- if ( (rw -= w) > 0 )
- { x += w;
- w = tiles->size.x;
- bptr = base;
- skew = dbit = x & chunk_align_bit_mask;
- goto outer;
- }
- return 0;
- #endif /* !USE_COPY_ROP */
- }
-
- #endif /**************** ****************/
-
- /* ================ "Word"-oriented device ================ */
-
- /* Note that on a big-endian machine, this is the same as the */
- /* standard byte-oriented-device. */
-
- #if !arch_is_big_endian
-
- /* Procedures */
- private dev_proc_copy_mono(mem1_word_copy_mono);
- private dev_proc_fill_rectangle(mem1_word_fill_rectangle);
- #define mem1_word_strip_tile_rectangle gx_default_strip_tile_rectangle
-
- /* Here is the device descriptor. */
- const gx_device_memory far_data mem_mono_word_device =
- mem_full_alpha_device("image1w", 0, 1, mem_open,
- mem_mono_map_rgb_color, mem_mono_map_color_rgb,
- mem1_word_copy_mono, gx_default_copy_color, mem1_word_fill_rectangle,
- mem_word_get_bits, gx_default_map_cmyk_color, gx_no_copy_alpha,
- mem1_word_strip_tile_rectangle, gx_no_strip_copy_rop);
-
- /* Fill a rectangle with a color. */
- private int
- mem1_word_fill_rectangle(gx_device *dev, int x, int y, int w, int h,
- gx_color_index color)
- { byte *base;
- uint raster;
- fit_fill(dev, x, y, w, h);
- base = scan_line_base(mdev, y);
- raster = mdev->raster;
- mem_swap_byte_rect(base, raster, x, w, h, true);
- bits_fill_rectangle(base, x, raster, -(mono_fill_chunk)color, w, h);
- mem_swap_byte_rect(base, raster, x, w, h, true);
- return 0;
- }
-
- /* Copy a bitmap. */
- private int
- mem1_word_copy_mono(gx_device *dev,
- const byte *base, int sourcex, int sraster, gx_bitmap_id id,
- int x, int y, int w, int h, gx_color_index zero, gx_color_index one)
- { byte *row;
- uint raster;
- bool store;
- fit_copy(dev, base, sourcex, sraster, id, x, y, w, h);
- row = scan_line_base(mdev, y);
- raster = mdev->raster;
- store = (zero != gx_no_color_index && one != gx_no_color_index);
- mem_swap_byte_rect(row, raster, x, w, h, store);
- mem_mono_copy_mono(dev, base, sourcex, sraster, id,
- x, y, w, h, zero, one);
- mem_swap_byte_rect(row, raster, x, w, h, false);
- return 0;
- }
-
- #endif /* !arch_is_big_endian */
-