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/* Copyright (C) 1998, 2000 Aladdin Enterprises. All rights reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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For more information about licensing, please refer to
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http://www.ghostscript.com/licensing/. For information on
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commercial licensing, go to http://www.artifex.com/licensing/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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*/
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/*$Id: gxclrast.c,v 1.33 2005/03/14 18:08:36 dan Exp $ */
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/* Command list interpreter/rasterizer */
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#include "memory_.h"
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#include "gx.h"
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#include "gp.h" /* for gp_fmode_rb */
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#include "gpcheck.h"
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#include "gserrors.h"
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#include "gscdefs.h" /* for image type table */
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#include "gsbitops.h"
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#include "gsparams.h"
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#include "gsstate.h" /* (should only be imager state) */
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#include "gxdcolor.h"
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#include "gxdevice.h"
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#include "gscoord.h" /* requires gsmatrix.h */
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#include "gsdevice.h" /* for gs_deviceinitialmatrix */
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#include "gsiparm4.h"
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#include "gxdevmem.h" /* must precede gxcldev.h */
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#include "gxcldev.h"
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#include "gxclpath.h"
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#include "gxcmap.h"
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#include "gxcolor2.h"
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#include "gxcspace.h" /* for gs_color_space_type */
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#include "gxdhtres.h"
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#include "gxgetbit.h"
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#include "gxpaint.h" /* for gx_fill/stroke_params */
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#include "gxhttile.h"
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#include "gxiparam.h"
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#include "gzpath.h"
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#include "gzcpath.h"
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#include "gzacpath.h"
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#include "stream.h"
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#include "strimpl.h"
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#include "gxcomp.h"
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#include "gsserial.h"
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#include "gxdhtserial.h"
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#include "gzht.h"
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extern_gx_device_halftone_list();
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extern_gx_image_type_table();
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/* We need color space types for constructing temporary color spaces. */
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extern const gs_color_space_type gs_color_space_type_Indexed;
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/* Print a bitmap for tracing */
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#ifdef DEBUG
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private void
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cmd_print_bits(const byte * data, int width, int height, int raster)
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{
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int i, j;
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dlprintf3("[L]width=%d, height=%d, raster=%d\n",
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width, height, raster);
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for (i = 0; i < height; i++) {
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const byte *row = data + i * raster;
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dlprintf("[L]");
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for (j = 0; j < raster; j++)
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dprintf1(" %02x", row[j]);
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dputc('\n');
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}
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}
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#else
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# define cmd_print_bits(data, width, height, raster) DO_NOTHING
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#endif
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/* Get a variable-length integer operand. */
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#define cmd_getw(var, p)\
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BEGIN\
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if ( *p < 0x80 ) var = *p++;\
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else { const byte *_cbp; var = cmd_get_w(p, &_cbp); p = _cbp; }\
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END
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private long
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cmd_get_w(const byte * p, const byte ** rp)
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{
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long val = *p++ & 0x7f;
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int shift = 7;
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for (; val += (long)(*p & 0x7f) << shift, *p++ > 0x7f; shift += 7);
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*rp = p;
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return val;
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}
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/*
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* Define the structure for keeping track of the command reading buffer.
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*
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* The ptr member is only used for passing the current pointer to, and
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* receiving an updated pointer from, commands implemented as separate
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* procedures: normally it is kept in a register.
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*/
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typedef struct command_buf_s {
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byte *data; /* actual buffer, guaranteed aligned */
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uint size;
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const byte *ptr; /* next byte to be read (see above) */
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const byte *limit; /* refill warning point */
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const byte *end; /* byte just beyond valid data */
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stream *s; /* for refilling buffer */
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int end_status;
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} command_buf_t;
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/* Set the end of a command buffer. */
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private void
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set_cb_end(command_buf_t *pcb, const byte *end)
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{
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pcb->end = end;
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pcb->limit = pcb->data + (pcb->size - cmd_largest_size + 1);
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if ( pcb->limit > pcb->end )
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pcb->limit = pcb->end;
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}
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/* Read more data into a command buffer. */
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private const byte *
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top_up_cbuf(command_buf_t *pcb, const byte *cbp)
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{
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uint nread;
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byte *cb_top = pcb->data + (pcb->end - cbp);
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memmove(pcb->data, cbp, pcb->end - cbp);
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nread = pcb->end - cb_top;
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pcb->end_status = sgets(pcb->s, cb_top, nread, &nread);
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if ( nread == 0 ) {
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/* No data for this band at all. */
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*cb_top = cmd_opv_end_run;
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nread = 1;
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}
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set_cb_end(pcb, cb_top + nread);
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process_interrupts(pcb->s->memory);
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return pcb->data;
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}
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/* Read data from the command buffer and stream. */
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private const byte *
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cmd_read_data(command_buf_t *pcb, byte *ptr, uint rsize, const byte *cbp)
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{
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if (pcb->end - cbp >= rsize) {
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memcpy(ptr, cbp, rsize);
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return cbp + rsize;
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} else {
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uint cleft = pcb->end - cbp;
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uint rleft = rsize - cleft;
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memcpy(ptr, cbp, cleft);
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sgets(pcb->s, ptr + cleft, rleft, &rleft);
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return pcb->end;
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}
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}
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#define cmd_read(ptr, rsize, cbp)\
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cbp = cmd_read_data(&cbuf, ptr, rsize, cbp)
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/* Read a fixed-size value from the command buffer. */
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inline private const byte *
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cmd_copy_value(void *pvar, int var_size, const byte *cbp)
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{
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memcpy(pvar, cbp, var_size);
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return cbp + var_size;
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}
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#define cmd_get_value(var, cbp)\
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cbp = cmd_copy_value(&var, sizeof(var), cbp)
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/*
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* Define a buffer structure to hold a serialized halftone. This is
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* used only if the serialized halftone is too large to fit into
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* the command buffer.
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*/
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typedef struct ht_buff_s {
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uint ht_size, read_size;
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byte * pcurr;
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byte * pbuff;
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} ht_buff_t;
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/*
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* Render one band to a specified target device. Note that if
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* action == setup, target may be 0.
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*/
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private int read_set_tile_size(command_buf_t *pcb, tile_slot *bits);
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private int read_set_bits(command_buf_t *pcb, tile_slot *bits,
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int compress, gx_clist_state *pcls,
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gx_strip_bitmap *tile, tile_slot **pslot,
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gx_device_clist_reader *cdev, gs_memory_t *mem);
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private int read_set_misc2(command_buf_t *pcb, gs_imager_state *pis,
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segment_notes *pnotes);
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private int read_set_color_space(command_buf_t *pcb, gs_imager_state *pis,
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const gs_color_space **ppcs,
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gs_color_space *pcolor_space,
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gs_memory_t *mem);
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private int read_begin_image(command_buf_t *pcb, gs_image_common_t *pic,
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const gs_color_space *pcs);
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private int read_put_params(command_buf_t *pcb, gs_imager_state *pis,
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gx_device_clist_reader *cdev,
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gs_memory_t *mem);
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private int read_create_compositor(command_buf_t *pcb, gs_imager_state *pis,
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gx_device_clist_reader *cdev,
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gs_memory_t *mem, gx_device ** ptarget);
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private int read_alloc_ht_buff(ht_buff_t *, uint, gs_memory_t *);
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private int read_ht_segment(ht_buff_t *, command_buf_t *, gs_imager_state *,
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gx_device *, gs_memory_t *);
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private const byte *cmd_read_rect(int, gx_cmd_rect *, const byte *);
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private const byte *cmd_read_matrix(gs_matrix *, const byte *);
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private const byte *cmd_read_short_bits(command_buf_t *pcb, byte *data,
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int width_bytes, int height,
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uint raster, const byte *cbp);
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private int cmd_select_map(cmd_map_index, cmd_map_contents,
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gs_imager_state *, int **,
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frac **, uint *, gs_memory_t *);
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private int cmd_create_dev_ht(gx_device_halftone **, gs_memory_t *);
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private int cmd_resize_halftone(gx_device_halftone **, uint,
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gs_memory_t *);
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private int clist_decode_segment(gx_path *, int, fixed[6],
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gs_fixed_point *, int, int,
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segment_notes);
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private int clist_do_polyfill(gx_device *, gx_path *,
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const gx_drawing_color *,
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gs_logical_operation_t);
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int
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clist_playback_band(clist_playback_action playback_action,
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gx_device_clist_reader *cdev, stream *s,
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gx_device *target, int x0, int y0, gs_memory_t * mem)
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{
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/* cbuf must be maximally aligned, but still be a byte *. */
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typedef union { void *p; double d; long l; } aligner_t;
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aligner_t cbuf_storage[cbuf_size / sizeof(aligner_t) + 1];
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command_buf_t cbuf;
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/* data_bits is for short copy_* bits and copy_* compressed, */
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/* must be aligned */
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#define data_bits_size cbuf_size
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byte *data_bits = 0;
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register const byte *cbp;
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int dev_depth; /* May vary due to compositing devices */
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int dev_depth_bytes;
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int odd_delta_shift;
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int num_zero_bytes;
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gx_device *tdev;
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gx_clist_state state;
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gx_color_index *set_colors;
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tile_slot *state_slot;
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gx_strip_bitmap state_tile; /* parameters for reading tiles */
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tile_slot tile_bits; /* parameters of current tile */
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gs_int_point tile_phase, color_phase;
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gx_path path;
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bool in_path;
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gs_fixed_point ppos;
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gx_clip_path clip_path;
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bool use_clip;
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gx_clip_path *pcpath;
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gx_device_cpath_accum clip_accum;
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gs_fixed_rect target_box;
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struct _cas {
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bool lop_enabled;
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gs_fixed_point fill_adjust;
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gx_device_color dcolor;
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} clip_save;
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bool in_clip = false;
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gs_imager_state imager_state;
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gx_device_color dev_color;
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float dash_pattern[cmd_max_dash];
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gx_fill_params fill_params;
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gx_stroke_params stroke_params;
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gs_halftone_type halftone_type;
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union im_ {
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gs_image_common_t c;
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gs_data_image_t d;
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gs_image1_t i1;
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gs_image4_t i4;
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} image;
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gs_int_rect image_rect;
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gs_color_space color_space; /* only used for indexed spaces */
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const gs_color_space *pcs;
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gs_color_space cs;
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gx_image_enum_common_t *image_info;
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gx_image_plane_t planes[32];
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uint data_height;
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uint data_size;
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byte *data_on_heap;
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fixed vs[6];
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segment_notes notes;
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int data_x;
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int code = 0;
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ht_buff_t ht_buff;
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gx_device *const orig_target = target;
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cbuf.data = (byte *)cbuf_storage;
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cbuf.size = cbuf_size;
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cbuf.s = s;
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cbuf.end_status = 0;
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set_cb_end(&cbuf, cbuf.data + cbuf.size);
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cbp = cbuf.end;
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memset(&ht_buff, 0, sizeof(ht_buff));
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in: /* Initialize for a new page. */
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tdev = target;
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set_colors = state.colors;
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use_clip = false;
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pcpath = NULL;
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notes = sn_none;
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data_x = 0;
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{
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static const gx_clist_state cls_initial = { cls_initial_values };
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state = cls_initial;
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}
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state_tile.id = gx_no_bitmap_id;
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state_tile.shift = state_tile.rep_shift = 0;
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tile_phase.x = color_phase.x = x0;
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tile_phase.y = color_phase.y = y0;
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gx_path_init_local(&path, mem);
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in_path = false;
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/*
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* Initialize the clipping region to the full page.
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* (Since we also initialize use_clip to false, this is arbitrary.)
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*/
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331 |
{
|
|
|
332 |
gs_fixed_rect cbox;
|
|
|
333 |
|
|
|
334 |
gx_cpath_init_local(&clip_path, mem);
|
|
|
335 |
cbox.p.x = 0;
|
|
|
336 |
cbox.p.y = 0;
|
|
|
337 |
cbox.q.x = cdev->width;
|
|
|
338 |
cbox.q.y = cdev->height;
|
|
|
339 |
gx_cpath_from_rectangle(&clip_path, &cbox);
|
|
|
340 |
}
|
|
|
341 |
if (target != 0)
|
|
|
342 |
(*dev_proc(target, get_clipping_box))(target, &target_box);
|
|
|
343 |
imager_state = clist_imager_state_initial;
|
|
|
344 |
code = gs_imager_state_initialize(&imager_state, mem);
|
|
|
345 |
if (code < 0)
|
|
|
346 |
goto out;
|
|
|
347 |
imager_state.line_params.dash.pattern = dash_pattern;
|
|
|
348 |
if (tdev != 0)
|
|
|
349 |
gx_set_cmap_procs(&imager_state, tdev);
|
|
|
350 |
gx_imager_setscreenphase(&imager_state, -x0, -y0, gs_color_select_all);
|
|
|
351 |
halftone_type = ht_type_none;
|
|
|
352 |
fill_params.fill_zero_width = false;
|
|
|
353 |
gs_cspace_init_DeviceGray(mem, &cs);
|
|
|
354 |
pcs = &cs;
|
|
|
355 |
color_unset(&dev_color);
|
|
|
356 |
color_space.params.indexed.use_proc = 0;
|
|
|
357 |
color_space.params.indexed.lookup.table.size = 0;
|
|
|
358 |
data_bits = gs_alloc_bytes(mem, data_bits_size,
|
|
|
359 |
"clist_playback_band(data_bits)");
|
|
|
360 |
if (data_bits == 0) {
|
|
|
361 |
code = gs_note_error(gs_error_VMerror);
|
|
|
362 |
goto out;
|
|
|
363 |
}
|
|
|
364 |
while (code >= 0) {
|
|
|
365 |
int op;
|
|
|
366 |
int compress;
|
|
|
367 |
int depth = 0x7badf00d; /* Initialize against indeterminizm. */
|
|
|
368 |
int raster = 0x7badf00d; /* Initialize against indeterminizm. */
|
|
|
369 |
byte *source = NULL; /* Initialize against indeterminizm. */
|
|
|
370 |
gx_color_index colors[2];
|
|
|
371 |
gx_color_index *pcolor;
|
|
|
372 |
gs_logical_operation_t log_op;
|
|
|
373 |
tile_slot bits; /* parameters for reading bits */
|
|
|
374 |
|
|
|
375 |
/* Make sure the buffer contains a full command. */
|
|
|
376 |
if (cbp >= cbuf.limit) {
|
|
|
377 |
if (cbuf.end_status < 0) { /* End of file or error. */
|
|
|
378 |
if (cbp == cbuf.end) {
|
|
|
379 |
code = (cbuf.end_status == EOFC ? 0 :
|
|
|
380 |
gs_note_error(gs_error_ioerror));
|
|
|
381 |
break;
|
|
|
382 |
}
|
|
|
383 |
} else {
|
|
|
384 |
cbp = top_up_cbuf(&cbuf, cbp);
|
|
|
385 |
}
|
|
|
386 |
}
|
|
|
387 |
op = *cbp++;
|
|
|
388 |
#ifdef DEBUG
|
|
|
389 |
if (gs_debug_c('L')) {
|
|
|
390 |
const char *const *sub = cmd_sub_op_names[op >> 4];
|
|
|
391 |
|
|
|
392 |
if (sub)
|
|
|
393 |
dlprintf1("[L]%s:", sub[op & 0xf]);
|
|
|
394 |
else
|
|
|
395 |
dlprintf2("[L]%s %d:", cmd_op_names[op >> 4], op & 0xf);
|
|
|
396 |
}
|
|
|
397 |
#endif
|
|
|
398 |
switch (op >> 4) {
|
|
|
399 |
case cmd_op_misc >> 4:
|
|
|
400 |
switch (op) {
|
|
|
401 |
case cmd_opv_end_run:
|
|
|
402 |
if_debug0('L', "\n");
|
|
|
403 |
continue;
|
|
|
404 |
case cmd_opv_set_tile_size:
|
|
|
405 |
cbuf.ptr = cbp;
|
|
|
406 |
code = read_set_tile_size(&cbuf, &tile_bits);
|
|
|
407 |
cbp = cbuf.ptr;
|
|
|
408 |
if (code < 0)
|
|
|
409 |
goto out;
|
|
|
410 |
continue;
|
|
|
411 |
case cmd_opv_set_tile_phase:
|
|
|
412 |
cmd_getw(state.tile_phase.x, cbp);
|
|
|
413 |
cmd_getw(state.tile_phase.y, cbp);
|
|
|
414 |
if_debug2('L', " (%d,%d)\n",
|
|
|
415 |
state.tile_phase.x,
|
|
|
416 |
state.tile_phase.y);
|
|
|
417 |
goto set_phase;
|
|
|
418 |
case cmd_opv_set_tile_bits:
|
|
|
419 |
bits = tile_bits;
|
|
|
420 |
compress = 0;
|
|
|
421 |
stb:
|
|
|
422 |
cbuf.ptr = cbp;
|
|
|
423 |
code = read_set_bits(&cbuf, &bits, compress,
|
|
|
424 |
&state, &state_tile, &state_slot,
|
|
|
425 |
cdev, mem);
|
|
|
426 |
cbp = cbuf.ptr;
|
|
|
427 |
if (code < 0)
|
|
|
428 |
goto out;
|
|
|
429 |
goto stp;
|
|
|
430 |
case cmd_opv_set_bits:
|
|
|
431 |
compress = *cbp & 3;
|
|
|
432 |
bits.cb_depth = *cbp++ >> 2;
|
|
|
433 |
cmd_getw(bits.width, cbp);
|
|
|
434 |
cmd_getw(bits.height, cbp);
|
|
|
435 |
if_debug4('L', " compress=%d depth=%d size=(%d,%d)",
|
|
|
436 |
compress, bits.cb_depth,
|
|
|
437 |
bits.width, bits.height);
|
|
|
438 |
bits.cb_raster =
|
|
|
439 |
bitmap_raster(bits.width * bits.cb_depth);
|
|
|
440 |
bits.x_reps = bits.y_reps = 1;
|
|
|
441 |
bits.shift = bits.rep_shift = 0;
|
|
|
442 |
goto stb;
|
|
|
443 |
case cmd_opv_set_tile_color:
|
|
|
444 |
set_colors = state.tile_colors;
|
|
|
445 |
if_debug0('L', "\n");
|
|
|
446 |
continue;
|
|
|
447 |
case cmd_opv_set_misc:
|
|
|
448 |
{
|
|
|
449 |
uint cb = *cbp++;
|
|
|
450 |
|
|
|
451 |
switch (cb >> 6) {
|
|
|
452 |
case cmd_set_misc_lop >> 6:
|
|
|
453 |
cmd_getw(state.lop, cbp);
|
|
|
454 |
state.lop = (state.lop << 6) + (cb & 0x3f);
|
|
|
455 |
if_debug1('L', " lop=0x%x\n", state.lop);
|
|
|
456 |
if (state.lop_enabled)
|
|
|
457 |
imager_state.log_op = state.lop;
|
|
|
458 |
break;
|
|
|
459 |
case cmd_set_misc_data_x >> 6:
|
|
|
460 |
if (cb & 0x20)
|
|
|
461 |
cmd_getw(data_x, cbp);
|
|
|
462 |
else
|
|
|
463 |
data_x = 0;
|
|
|
464 |
data_x = (data_x << 5) + (cb & 0x1f);
|
|
|
465 |
if_debug1('L', " data_x=%d\n", data_x);
|
|
|
466 |
break;
|
|
|
467 |
case cmd_set_misc_map >> 6:
|
|
|
468 |
{
|
|
|
469 |
frac *mdata;
|
|
|
470 |
int *pcomp_num;
|
|
|
471 |
uint count;
|
|
|
472 |
cmd_map_contents cont =
|
|
|
473 |
(cmd_map_contents)(cb & 0x30) >> 4;
|
|
|
474 |
|
|
|
475 |
code = cmd_select_map(cb & 0xf, cont,
|
|
|
476 |
&imager_state,
|
|
|
477 |
&pcomp_num,
|
|
|
478 |
&mdata, &count, mem);
|
|
|
479 |
|
|
|
480 |
if (code < 0)
|
|
|
481 |
goto out;
|
|
|
482 |
/* Get component number if relevant */
|
|
|
483 |
if (pcomp_num == NULL)
|
|
|
484 |
cbp++;
|
|
|
485 |
else {
|
|
|
486 |
*pcomp_num = (int) *cbp++;
|
|
|
487 |
if_debug1('L', " comp_num=%d",
|
|
|
488 |
*pcomp_num);
|
|
|
489 |
}
|
|
|
490 |
if (cont == cmd_map_other) {
|
|
|
491 |
cmd_read((byte *)mdata, count, cbp);
|
|
|
492 |
#ifdef DEBUG
|
|
|
493 |
if (gs_debug_c('L')) {
|
|
|
494 |
uint i;
|
|
|
495 |
|
|
|
496 |
for (i = 0; i < count / sizeof(*mdata); ++i)
|
|
|
497 |
dprintf1(" 0x%04x", mdata[i]);
|
|
|
498 |
dputc('\n');
|
|
|
499 |
}
|
|
|
500 |
} else {
|
|
|
501 |
if_debug0('L', " none\n");
|
|
|
502 |
#endif
|
|
|
503 |
}
|
|
|
504 |
}
|
|
|
505 |
/* Recompute the effective transfer, */
|
|
|
506 |
/* in case this was a transfer map. */
|
|
|
507 |
gx_imager_set_effective_xfer(&imager_state);
|
|
|
508 |
break;
|
|
|
509 |
case cmd_set_misc_halftone >> 6: {
|
|
|
510 |
uint num_comp;
|
|
|
511 |
|
|
|
512 |
halftone_type = cb & 0x3f;
|
|
|
513 |
cmd_getw(num_comp, cbp);
|
|
|
514 |
if_debug2('L', " halftone type=%d num_comp=%u\n",
|
|
|
515 |
halftone_type, num_comp);
|
|
|
516 |
code = cmd_resize_halftone(
|
|
|
517 |
&imager_state.dev_ht,
|
|
|
518 |
num_comp, mem);
|
|
|
519 |
if (code < 0)
|
|
|
520 |
goto out;
|
|
|
521 |
break;
|
|
|
522 |
}
|
|
|
523 |
default:
|
|
|
524 |
goto bad_op;
|
|
|
525 |
}
|
|
|
526 |
}
|
|
|
527 |
continue;
|
|
|
528 |
case cmd_opv_enable_lop:
|
|
|
529 |
state.lop_enabled = true;
|
|
|
530 |
imager_state.log_op = state.lop;
|
|
|
531 |
if_debug0('L', "\n");
|
|
|
532 |
continue;
|
|
|
533 |
case cmd_opv_disable_lop:
|
|
|
534 |
state.lop_enabled = false;
|
|
|
535 |
imager_state.log_op = lop_default;
|
|
|
536 |
if_debug0('L', "\n");
|
|
|
537 |
continue;
|
|
|
538 |
case cmd_opv_end_page:
|
|
|
539 |
if_debug0('L', "\n");
|
|
|
540 |
/*
|
|
|
541 |
* Do end-of-page cleanup, then reinitialize if
|
|
|
542 |
* there are more pages to come.
|
|
|
543 |
*/
|
|
|
544 |
goto out;
|
|
|
545 |
case cmd_opv_delta_color0:
|
|
|
546 |
pcolor = &set_colors[0];
|
|
|
547 |
goto delta2_c;
|
|
|
548 |
case cmd_opv_delta_color1:
|
|
|
549 |
pcolor = &set_colors[1];
|
|
|
550 |
delta2_c:set_colors = state.colors;
|
|
|
551 |
/* See comments for cmd_put_color() in gxclutil.c. */
|
|
|
552 |
{
|
|
|
553 |
gx_color_index delta = 0;
|
|
|
554 |
uint data;
|
|
|
555 |
|
|
|
556 |
dev_depth = cdev->color_info.depth;
|
|
|
557 |
dev_depth_bytes = (dev_depth + 7) >> 3;
|
|
|
558 |
switch (dev_depth_bytes) {
|
|
|
559 |
/* For cases with an even number of bytes */
|
|
|
560 |
case 8:
|
|
|
561 |
data = *cbp++;
|
|
|
562 |
delta = ((gx_color_index)
|
|
|
563 |
((data & 0xf0) << 4) + (data & 0x0f)) << 48;
|
|
|
564 |
case 6:
|
|
|
565 |
data = *cbp++;
|
|
|
566 |
delta |= ((gx_color_index)
|
|
|
567 |
((data & 0xf0) << 4) + (data & 0x0f)) << 32;
|
|
|
568 |
case 4:
|
|
|
569 |
data = *cbp++;
|
|
|
570 |
delta |= ((gx_color_index)
|
|
|
571 |
((data & 0xf0) << 4) + (data & 0x0f)) << 16;
|
|
|
572 |
case 2:
|
|
|
573 |
data = *cbp++;
|
|
|
574 |
delta |= ((gx_color_index)
|
|
|
575 |
((data & 0xf0) << 4) + (data & 0x0f));
|
|
|
576 |
break;
|
|
|
577 |
/* For cases with an odd number of bytes */
|
|
|
578 |
case 7:
|
|
|
579 |
data = *cbp++;
|
|
|
580 |
delta = ((gx_color_index)
|
|
|
581 |
((data & 0xf0) << 4) + (data & 0x0f)) << 16;
|
|
|
582 |
case 5:
|
|
|
583 |
data = *cbp++;
|
|
|
584 |
delta |= ((gx_color_index)
|
|
|
585 |
((data & 0xf0) << 4) + (data & 0x0f));
|
|
|
586 |
case 3:
|
|
|
587 |
data = *cbp++;
|
|
|
588 |
odd_delta_shift = (dev_depth_bytes - 3) * 8;
|
|
|
589 |
delta |= ((gx_color_index)
|
|
|
590 |
((data & 0xe0) << 3) + (data & 0x1f)) << odd_delta_shift;
|
|
|
591 |
data = *cbp++;
|
|
|
592 |
delta |= ((gx_color_index) ((data & 0xf8) << 2) + (data & 0x07))
|
|
|
593 |
<< (odd_delta_shift + 11);
|
|
|
594 |
}
|
|
|
595 |
*pcolor += delta - cmd_delta_offsets[dev_depth_bytes];
|
|
|
596 |
}
|
|
|
597 |
if_debug1('L', " 0x%lx\n", *pcolor);
|
|
|
598 |
continue;
|
|
|
599 |
case cmd_opv_set_copy_color:
|
|
|
600 |
state.color_is_alpha = 0;
|
|
|
601 |
if_debug0('L', "\n");
|
|
|
602 |
continue;
|
|
|
603 |
case cmd_opv_set_copy_alpha:
|
|
|
604 |
state.color_is_alpha = 1;
|
|
|
605 |
if_debug0('L', "\n");
|
|
|
606 |
continue;
|
|
|
607 |
default:
|
|
|
608 |
goto bad_op;
|
|
|
609 |
}
|
|
|
610 |
/*NOTREACHED */
|
|
|
611 |
case cmd_op_set_color0 >> 4:
|
|
|
612 |
pcolor = &set_colors[0];
|
|
|
613 |
goto set_color;
|
|
|
614 |
case cmd_op_set_color1 >> 4:
|
|
|
615 |
pcolor = &set_colors[1];
|
|
|
616 |
set_color:set_colors = state.colors;
|
|
|
617 |
/*
|
|
|
618 |
* We have a special case for gx_no_color_index. If the low
|
|
|
619 |
* order 4 bits are "cmd_no_color_index" then we really
|
|
|
620 |
* have a value of gx_no_color_index. Otherwise the these
|
|
|
621 |
* bits indicate the number of low order zero bytes in the
|
|
|
622 |
* value. See comments for cmd_put_color() in gxclutil.c.
|
|
|
623 |
*/
|
|
|
624 |
num_zero_bytes = op & 0x0f;
|
|
|
625 |
|
|
|
626 |
if (num_zero_bytes == cmd_no_color_index)
|
|
|
627 |
*pcolor = gx_no_color_index;
|
|
|
628 |
else {
|
|
|
629 |
gx_color_index color = 0;
|
|
|
630 |
|
|
|
631 |
dev_depth = cdev->color_info.depth;
|
|
|
632 |
dev_depth_bytes = (dev_depth + 7) >> 3;
|
|
|
633 |
switch (dev_depth_bytes - num_zero_bytes) {
|
|
|
634 |
case 8:
|
|
|
635 |
color = (gx_color_index) * cbp++;
|
|
|
636 |
case 7:
|
|
|
637 |
color = (color << 8) | (gx_color_index) * cbp++;
|
|
|
638 |
case 6:
|
|
|
639 |
color = (color << 8) | (gx_color_index) * cbp++;
|
|
|
640 |
case 5:
|
|
|
641 |
color = (color << 8) | (gx_color_index) * cbp++;
|
|
|
642 |
case 4:
|
|
|
643 |
color = (color << 8) | (gx_color_index) * cbp++;
|
|
|
644 |
case 3:
|
|
|
645 |
color = (color << 8) | (gx_color_index) * cbp++;
|
|
|
646 |
case 2:
|
|
|
647 |
color = (color << 8) | (gx_color_index) * cbp++;
|
|
|
648 |
case 1:
|
|
|
649 |
color = (color << 8) | (gx_color_index) * cbp++;
|
|
|
650 |
default:
|
|
|
651 |
break;
|
|
|
652 |
}
|
|
|
653 |
color <<= num_zero_bytes * 8;
|
|
|
654 |
*pcolor = color;
|
|
|
655 |
}
|
|
|
656 |
if_debug1('L', " 0x%lx\n", *pcolor);
|
|
|
657 |
continue;
|
|
|
658 |
case cmd_op_fill_rect >> 4:
|
|
|
659 |
case cmd_op_tile_rect >> 4:
|
|
|
660 |
cbp = cmd_read_rect(op, &state.rect, cbp);
|
|
|
661 |
break;
|
|
|
662 |
case cmd_op_fill_rect_short >> 4:
|
|
|
663 |
case cmd_op_tile_rect_short >> 4:
|
|
|
664 |
state.rect.x += *cbp + cmd_min_short;
|
|
|
665 |
state.rect.width += cbp[1] + cmd_min_short;
|
|
|
666 |
if (op & 0xf) {
|
|
|
667 |
state.rect.height += (op & 0xf) + cmd_min_dxy_tiny;
|
|
|
668 |
cbp += 2;
|
|
|
669 |
} else {
|
|
|
670 |
state.rect.y += cbp[2] + cmd_min_short;
|
|
|
671 |
state.rect.height += cbp[3] + cmd_min_short;
|
|
|
672 |
cbp += 4;
|
|
|
673 |
}
|
|
|
674 |
break;
|
|
|
675 |
case cmd_op_fill_rect_tiny >> 4:
|
|
|
676 |
case cmd_op_tile_rect_tiny >> 4:
|
|
|
677 |
if (op & 8)
|
|
|
678 |
state.rect.x += state.rect.width;
|
|
|
679 |
else {
|
|
|
680 |
int txy = *cbp++;
|
|
|
681 |
|
|
|
682 |
state.rect.x += (txy >> 4) + cmd_min_dxy_tiny;
|
|
|
683 |
state.rect.y += (txy & 0xf) + cmd_min_dxy_tiny;
|
|
|
684 |
}
|
|
|
685 |
state.rect.width += (op & 7) + cmd_min_dw_tiny;
|
|
|
686 |
break;
|
|
|
687 |
case cmd_op_copy_mono >> 4:
|
|
|
688 |
depth = 1;
|
|
|
689 |
goto copy;
|
|
|
690 |
case cmd_op_copy_color_alpha >> 4:
|
|
|
691 |
if (state.color_is_alpha) {
|
|
|
692 |
if (!(op & 8))
|
|
|
693 |
depth = *cbp++;
|
|
|
694 |
} else
|
|
|
695 |
depth = cdev->color_info.depth;
|
|
|
696 |
copy:cmd_getw(state.rect.x, cbp);
|
|
|
697 |
cmd_getw(state.rect.y, cbp);
|
|
|
698 |
if (op & 8) { /* Use the current "tile". */
|
|
|
699 |
#ifdef DEBUG
|
|
|
700 |
if (state_slot->index != state.tile_index) {
|
|
|
701 |
lprintf2("state_slot->index = %d, state.tile_index = %d!\n",
|
|
|
702 |
state_slot->index,
|
|
|
703 |
state.tile_index);
|
|
|
704 |
code = gs_note_error(gs_error_ioerror);
|
|
|
705 |
goto out;
|
|
|
706 |
}
|
|
|
707 |
#endif
|
|
|
708 |
depth = state_slot->cb_depth;
|
|
|
709 |
state.rect.width = state_slot->width;
|
|
|
710 |
state.rect.height = state_slot->height;
|
|
|
711 |
raster = state_slot->cb_raster;
|
|
|
712 |
source = (byte *) (state_slot + 1);
|
|
|
713 |
} else { /* Read width, height, bits. */
|
|
|
714 |
/* depth was set already. */
|
|
|
715 |
uint width_bits, width_bytes;
|
|
|
716 |
uint bytes;
|
|
|
717 |
|
|
|
718 |
cmd_getw(state.rect.width, cbp);
|
|
|
719 |
cmd_getw(state.rect.height, cbp);
|
|
|
720 |
width_bits = state.rect.width * depth;
|
|
|
721 |
bytes =
|
|
|
722 |
clist_bitmap_bytes(width_bits,
|
|
|
723 |
state.rect.height,
|
|
|
724 |
op & 3, &width_bytes,
|
|
|
725 |
(uint *)&raster);
|
|
|
726 |
/* copy_mono and copy_color/alpha */
|
|
|
727 |
/* ensure that the bits will fit in a single buffer, */
|
|
|
728 |
/* even after decompression if compressed. */
|
|
|
729 |
#ifdef DEBUG
|
|
|
730 |
if (bytes > cbuf_size) {
|
|
|
731 |
lprintf6("bitmap size exceeds buffer! width=%d raster=%d height=%d\n file pos %ld buf pos %d/%d\n",
|
|
|
732 |
state.rect.width, raster,
|
|
|
733 |
state.rect.height,
|
|
|
734 |
stell(s), (int)(cbp - cbuf.data),
|
|
|
735 |
(int)(cbuf.end - cbuf.data));
|
|
|
736 |
code = gs_note_error(gs_error_ioerror);
|
|
|
737 |
goto out;
|
|
|
738 |
}
|
|
|
739 |
#endif
|
|
|
740 |
if (op & 3) { /* Decompress the image data. */
|
|
|
741 |
stream_cursor_read r;
|
|
|
742 |
stream_cursor_write w;
|
|
|
743 |
|
|
|
744 |
/* We don't know the data length a priori, */
|
|
|
745 |
/* so to be conservative, we read */
|
|
|
746 |
/* the uncompressed size. */
|
|
|
747 |
uint cleft = cbuf.end - cbp;
|
|
|
748 |
|
|
|
749 |
if (cleft < bytes) {
|
|
|
750 |
uint nread = cbuf_size - cleft;
|
|
|
751 |
|
|
|
752 |
memmove(cbuf.data, cbp, cleft);
|
|
|
753 |
cbuf.end_status = sgets(s, cbuf.data + cleft, nread, &nread);
|
|
|
754 |
set_cb_end(&cbuf, cbuf.data + cleft + nread);
|
|
|
755 |
cbp = cbuf.data;
|
|
|
756 |
}
|
|
|
757 |
r.ptr = cbp - 1;
|
|
|
758 |
r.limit = cbuf.end - 1;
|
|
|
759 |
w.ptr = data_bits - 1;
|
|
|
760 |
w.limit = w.ptr + data_bits_size;
|
|
|
761 |
switch (op & 3) {
|
|
|
762 |
case cmd_compress_rle:
|
|
|
763 |
{
|
|
|
764 |
stream_RLD_state sstate;
|
|
|
765 |
|
|
|
766 |
clist_rld_init(&sstate);
|
|
|
767 |
/* The process procedure can't fail. */
|
|
|
768 |
(*s_RLD_template.process)
|
|
|
769 |
((stream_state *)&sstate, &r, &w, true);
|
|
|
770 |
}
|
|
|
771 |
break;
|
|
|
772 |
case cmd_compress_cfe:
|
|
|
773 |
{
|
|
|
774 |
stream_CFD_state sstate;
|
|
|
775 |
|
|
|
776 |
clist_cfd_init(&sstate,
|
|
|
777 |
width_bytes << 3 /*state.rect.width */ ,
|
|
|
778 |
state.rect.height, mem);
|
|
|
779 |
/* The process procedure can't fail. */
|
|
|
780 |
(*s_CFD_template.process)
|
|
|
781 |
((stream_state *)&sstate, &r, &w, true);
|
|
|
782 |
(*s_CFD_template.release)
|
|
|
783 |
((stream_state *)&sstate);
|
|
|
784 |
}
|
|
|
785 |
break;
|
|
|
786 |
default:
|
|
|
787 |
goto bad_op;
|
|
|
788 |
}
|
|
|
789 |
cbp = r.ptr + 1;
|
|
|
790 |
source = data_bits;
|
|
|
791 |
} else if (state.rect.height > 1 &&
|
|
|
792 |
width_bytes != raster
|
|
|
793 |
) {
|
|
|
794 |
source = data_bits;
|
|
|
795 |
cbp = cmd_read_short_bits(&cbuf, source, width_bytes,
|
|
|
796 |
state.rect.height,
|
|
|
797 |
raster, cbp);
|
|
|
798 |
} else {
|
|
|
799 |
cmd_read(cbuf.data, bytes, cbp);
|
|
|
800 |
source = cbuf.data;
|
|
|
801 |
}
|
|
|
802 |
#ifdef DEBUG
|
|
|
803 |
if (gs_debug_c('L')) {
|
|
|
804 |
dprintf2(" depth=%d, data_x=%d\n",
|
|
|
805 |
depth, data_x);
|
|
|
806 |
cmd_print_bits(source, state.rect.width,
|
|
|
807 |
state.rect.height, raster);
|
|
|
808 |
}
|
|
|
809 |
#endif
|
|
|
810 |
}
|
|
|
811 |
break;
|
|
|
812 |
case cmd_op_delta_tile_index >> 4:
|
|
|
813 |
state.tile_index += (int)(op & 0xf) - 8;
|
|
|
814 |
goto sti;
|
|
|
815 |
case cmd_op_set_tile_index >> 4:
|
|
|
816 |
state.tile_index =
|
|
|
817 |
((op & 0xf) << 8) + *cbp++;
|
|
|
818 |
sti:state_slot =
|
|
|
819 |
(tile_slot *) (cdev->chunk.data +
|
|
|
820 |
cdev->tile_table[state.tile_index].offset);
|
|
|
821 |
if_debug2('L', " index=%u offset=%lu\n",
|
|
|
822 |
state.tile_index,
|
|
|
823 |
cdev->tile_table[state.tile_index].offset);
|
|
|
824 |
state_tile.data = (byte *) (state_slot + 1);
|
|
|
825 |
stp:state_tile.size.x = state_slot->width;
|
|
|
826 |
state_tile.size.y = state_slot->height;
|
|
|
827 |
state_tile.raster = state_slot->cb_raster;
|
|
|
828 |
state_tile.rep_width = state_tile.size.x /
|
|
|
829 |
state_slot->x_reps;
|
|
|
830 |
state_tile.rep_height = state_tile.size.y /
|
|
|
831 |
state_slot->y_reps;
|
|
|
832 |
state_tile.rep_shift = state_slot->rep_shift;
|
|
|
833 |
state_tile.shift = state_slot->shift;
|
|
|
834 |
set_phase: /*
|
|
|
835 |
* state.tile_phase is overloaded according to the command
|
|
|
836 |
* to which it will apply:
|
|
|
837 |
* For fill_path, stroke_path, fill_triangle/p'gram,
|
|
|
838 |
* fill_mask, and (mask or CombineWithColor) images,
|
|
|
839 |
* it is pdcolor->phase. For these operations, we
|
|
|
840 |
* precompute the color_phase values.
|
|
|
841 |
* For strip_tile_rectangle and strip_copy_rop,
|
|
|
842 |
* it is the phase arguments of the call, used with
|
|
|
843 |
* state_tile. For these operations, we precompute the
|
|
|
844 |
* tile_phase values.
|
|
|
845 |
*
|
|
|
846 |
* Note that control may get here before one or both of
|
|
|
847 |
* state_tile or dev_ht has been set.
|
|
|
848 |
*/
|
|
|
849 |
if (state_tile.size.x)
|
|
|
850 |
tile_phase.x =
|
|
|
851 |
(state.tile_phase.x + x0) % state_tile.size.x;
|
|
|
852 |
if (imager_state.dev_ht && imager_state.dev_ht->lcm_width)
|
|
|
853 |
color_phase.x =
|
|
|
854 |
(state.tile_phase.x + x0) %
|
|
|
855 |
imager_state.dev_ht->lcm_width;
|
|
|
856 |
/*
|
|
|
857 |
* The true tile height for shifted tiles is not
|
|
|
858 |
* size.y: see gxbitmap.h for the computation.
|
|
|
859 |
*/
|
|
|
860 |
if (state_tile.size.y) {
|
|
|
861 |
int full_height;
|
|
|
862 |
|
|
|
863 |
if (state_tile.shift == 0)
|
|
|
864 |
full_height = state_tile.size.y;
|
|
|
865 |
else
|
|
|
866 |
full_height = state_tile.rep_height *
|
|
|
867 |
(state_tile.rep_width /
|
|
|
868 |
igcd(state_tile.rep_shift,
|
|
|
869 |
state_tile.rep_width));
|
|
|
870 |
tile_phase.y =
|
|
|
871 |
(state.tile_phase.y + y0) % full_height;
|
|
|
872 |
}
|
|
|
873 |
if (imager_state.dev_ht && imager_state.dev_ht->lcm_height)
|
|
|
874 |
color_phase.y =
|
|
|
875 |
(state.tile_phase.y + y0) %
|
|
|
876 |
imager_state.dev_ht->lcm_height;
|
|
|
877 |
gx_imager_setscreenphase(&imager_state,
|
|
|
878 |
-(state.tile_phase.x + x0),
|
|
|
879 |
-(state.tile_phase.y + y0),
|
|
|
880 |
gs_color_select_all);
|
|
|
881 |
continue;
|
|
|
882 |
case cmd_op_misc2 >> 4:
|
|
|
883 |
switch (op) {
|
|
|
884 |
case cmd_opv_set_fill_adjust:
|
|
|
885 |
cmd_get_value(imager_state.fill_adjust.x, cbp);
|
|
|
886 |
cmd_get_value(imager_state.fill_adjust.y, cbp);
|
|
|
887 |
if_debug2('L', " (%g,%g)\n",
|
|
|
888 |
fixed2float(imager_state.fill_adjust.x),
|
|
|
889 |
fixed2float(imager_state.fill_adjust.y));
|
|
|
890 |
continue;
|
|
|
891 |
case cmd_opv_set_ctm:
|
|
|
892 |
{
|
|
|
893 |
gs_matrix mat;
|
|
|
894 |
|
|
|
895 |
cbp = cmd_read_matrix(&mat, cbp);
|
|
|
896 |
mat.tx -= x0;
|
|
|
897 |
mat.ty -= y0;
|
|
|
898 |
gs_imager_setmatrix(&imager_state, &mat);
|
|
|
899 |
if_debug6('L', " [%g %g %g %g %g %g]\n",
|
|
|
900 |
mat.xx, mat.xy, mat.yx, mat.yy,
|
|
|
901 |
mat.tx, mat.ty);
|
|
|
902 |
}
|
|
|
903 |
continue;
|
|
|
904 |
case cmd_opv_set_misc2:
|
|
|
905 |
cbuf.ptr = cbp;
|
|
|
906 |
code = read_set_misc2(&cbuf, &imager_state, ¬es);
|
|
|
907 |
cbp = cbuf.ptr;
|
|
|
908 |
if (code < 0)
|
|
|
909 |
goto out;
|
|
|
910 |
continue;
|
|
|
911 |
case cmd_opv_set_dash:
|
|
|
912 |
{
|
|
|
913 |
int nb = *cbp++;
|
|
|
914 |
int n = nb & 0x3f;
|
|
|
915 |
float dot_length, offset;
|
|
|
916 |
|
|
|
917 |
cmd_get_value(dot_length, cbp);
|
|
|
918 |
cmd_get_value(offset, cbp);
|
|
|
919 |
memcpy(dash_pattern, cbp, n * sizeof(float));
|
|
|
920 |
|
|
|
921 |
gx_set_dash(&imager_state.line_params.dash,
|
|
|
922 |
dash_pattern, n, offset,
|
|
|
923 |
NULL);
|
|
|
924 |
gx_set_dash_adapt(&imager_state.line_params.dash,
|
|
|
925 |
(nb & 0x80) != 0);
|
|
|
926 |
gx_set_dot_length(&imager_state.line_params,
|
|
|
927 |
dot_length,
|
|
|
928 |
(nb & 0x40) != 0);
|
|
|
929 |
#ifdef DEBUG
|
|
|
930 |
if (gs_debug_c('L')) {
|
|
|
931 |
int i;
|
|
|
932 |
|
|
|
933 |
dprintf4(" dot=%g(mode %d) adapt=%d offset=%g [",
|
|
|
934 |
dot_length,
|
|
|
935 |
(nb & 0x40) != 0,
|
|
|
936 |
(nb & 0x80) != 0, offset);
|
|
|
937 |
for (i = 0; i < n; ++i)
|
|
|
938 |
dprintf1("%g ", dash_pattern[i]);
|
|
|
939 |
dputs("]\n");
|
|
|
940 |
}
|
|
|
941 |
#endif
|
|
|
942 |
cbp += n * sizeof(float);
|
|
|
943 |
}
|
|
|
944 |
break;
|
|
|
945 |
case cmd_opv_enable_clip:
|
|
|
946 |
pcpath = (use_clip ? &clip_path : NULL);
|
|
|
947 |
if_debug0('L', "\n");
|
|
|
948 |
break;
|
|
|
949 |
case cmd_opv_disable_clip:
|
|
|
950 |
pcpath = NULL;
|
|
|
951 |
if_debug0('L', "\n");
|
|
|
952 |
break;
|
|
|
953 |
case cmd_opv_begin_clip:
|
|
|
954 |
pcpath = NULL;
|
|
|
955 |
in_clip = true;
|
|
|
956 |
if_debug0('L', "\n");
|
|
|
957 |
code = gx_cpath_reset(&clip_path);
|
|
|
958 |
if (code < 0)
|
|
|
959 |
goto out;
|
|
|
960 |
gx_cpath_accum_begin(&clip_accum, mem);
|
|
|
961 |
gx_cpath_accum_set_cbox(&clip_accum,
|
|
|
962 |
&target_box);
|
|
|
963 |
tdev = (gx_device *)&clip_accum;
|
|
|
964 |
clip_save.lop_enabled = state.lop_enabled;
|
|
|
965 |
clip_save.fill_adjust =
|
|
|
966 |
imager_state.fill_adjust;
|
|
|
967 |
clip_save.dcolor = dev_color;
|
|
|
968 |
/* temporarily set a solid color */
|
|
|
969 |
color_set_pure(&dev_color, (gx_color_index)1);
|
|
|
970 |
state.lop_enabled = false;
|
|
|
971 |
imager_state.log_op = lop_default;
|
|
|
972 |
imager_state.fill_adjust.x =
|
|
|
973 |
imager_state.fill_adjust.y = fixed_half;
|
|
|
974 |
break;
|
|
|
975 |
case cmd_opv_end_clip:
|
|
|
976 |
if_debug0('L', "\n");
|
|
|
977 |
gx_cpath_accum_end(&clip_accum, &clip_path);
|
|
|
978 |
tdev = target;
|
|
|
979 |
/*
|
|
|
980 |
* If the entire band falls within the clip
|
|
|
981 |
* path, no clipping is needed.
|
|
|
982 |
*/
|
|
|
983 |
{
|
|
|
984 |
gs_fixed_rect cbox;
|
|
|
985 |
|
|
|
986 |
gx_cpath_inner_box(&clip_path, &cbox);
|
|
|
987 |
use_clip =
|
|
|
988 |
!(cbox.p.x <= target_box.p.x &&
|
|
|
989 |
cbox.q.x >= target_box.q.x &&
|
|
|
990 |
cbox.p.y <= target_box.p.y &&
|
|
|
991 |
cbox.q.y >= target_box.q.y);
|
|
|
992 |
}
|
|
|
993 |
pcpath = (use_clip ? &clip_path : NULL);
|
|
|
994 |
state.lop_enabled = clip_save.lop_enabled;
|
|
|
995 |
imager_state.log_op =
|
|
|
996 |
(state.lop_enabled ? state.lop :
|
|
|
997 |
lop_default);
|
|
|
998 |
imager_state.fill_adjust =
|
|
|
999 |
clip_save.fill_adjust;
|
|
|
1000 |
dev_color = clip_save.dcolor;
|
|
|
1001 |
in_clip = false;
|
|
|
1002 |
break;
|
|
|
1003 |
case cmd_opv_set_color_space:
|
|
|
1004 |
cbuf.ptr = cbp;
|
|
|
1005 |
code = read_set_color_space(&cbuf, &imager_state,
|
|
|
1006 |
&pcs, &color_space, mem);
|
|
|
1007 |
cbp = cbuf.ptr;
|
|
|
1008 |
if (code < 0) {
|
|
|
1009 |
if (code == gs_error_rangecheck)
|
|
|
1010 |
goto bad_op;
|
|
|
1011 |
goto out;
|
|
|
1012 |
}
|
|
|
1013 |
break;
|
|
|
1014 |
case cmd_opv_begin_image_rect:
|
|
|
1015 |
cbuf.ptr = cbp;
|
|
|
1016 |
code = read_begin_image(&cbuf, &image.c, pcs);
|
|
|
1017 |
cbp = cbuf.ptr;
|
|
|
1018 |
if (code < 0)
|
|
|
1019 |
goto out;
|
|
|
1020 |
{
|
|
|
1021 |
uint diff;
|
|
|
1022 |
|
|
|
1023 |
cmd_getw(image_rect.p.x, cbp);
|
|
|
1024 |
cmd_getw(image_rect.p.y, cbp);
|
|
|
1025 |
cmd_getw(diff, cbp);
|
|
|
1026 |
image_rect.q.x = image.d.Width - diff;
|
|
|
1027 |
cmd_getw(diff, cbp);
|
|
|
1028 |
image_rect.q.y = image.d.Height - diff;
|
|
|
1029 |
if_debug4('L', " rect=(%d,%d),(%d,%d)",
|
|
|
1030 |
image_rect.p.x, image_rect.p.y,
|
|
|
1031 |
image_rect.q.x, image_rect.q.y);
|
|
|
1032 |
}
|
|
|
1033 |
goto ibegin;
|
|
|
1034 |
case cmd_opv_begin_image:
|
|
|
1035 |
cbuf.ptr = cbp;
|
|
|
1036 |
code = read_begin_image(&cbuf, &image.c, pcs);
|
|
|
1037 |
cbp = cbuf.ptr;
|
|
|
1038 |
if (code < 0)
|
|
|
1039 |
goto out;
|
|
|
1040 |
image_rect.p.x = 0;
|
|
|
1041 |
image_rect.p.y = 0;
|
|
|
1042 |
image_rect.q.x = image.d.Width;
|
|
|
1043 |
image_rect.q.y = image.d.Height;
|
|
|
1044 |
if_debug2('L', " size=(%d,%d)",
|
|
|
1045 |
image.d.Width, image.d.Height);
|
|
|
1046 |
ibegin: if_debug0('L', "\n");
|
|
|
1047 |
{
|
|
|
1048 |
code = (*dev_proc(tdev, begin_typed_image))
|
|
|
1049 |
(tdev, &imager_state, NULL,
|
|
|
1050 |
(const gs_image_common_t *)&image,
|
|
|
1051 |
&image_rect, &dev_color, pcpath, mem,
|
|
|
1052 |
&image_info);
|
|
|
1053 |
}
|
|
|
1054 |
if (code < 0)
|
|
|
1055 |
goto out;
|
|
|
1056 |
break;
|
|
|
1057 |
case cmd_opv_image_plane_data:
|
|
|
1058 |
cmd_getw(data_height, cbp);
|
|
|
1059 |
if (data_height == 0) {
|
|
|
1060 |
if_debug0('L', " done image\n");
|
|
|
1061 |
code = gx_image_end(image_info, true);
|
|
|
1062 |
if (code < 0)
|
|
|
1063 |
goto out;
|
|
|
1064 |
continue;
|
|
|
1065 |
}
|
|
|
1066 |
{
|
|
|
1067 |
uint flags;
|
|
|
1068 |
int plane;
|
|
|
1069 |
uint raster1 = 0xbaadf00d; /* Initialize against indeterminizm. */
|
|
|
1070 |
|
|
|
1071 |
cmd_getw(flags, cbp);
|
|
|
1072 |
for (plane = 0;
|
|
|
1073 |
plane < image_info->num_planes;
|
|
|
1074 |
++plane, flags >>= 1
|
|
|
1075 |
) {
|
|
|
1076 |
if (flags & 1) {
|
|
|
1077 |
if (cbuf.end - cbp <
|
|
|
1078 |
2 * cmd_max_intsize(sizeof(uint)))
|
|
|
1079 |
cbp = top_up_cbuf(&cbuf, cbp);
|
|
|
1080 |
cmd_getw(planes[plane].raster, cbp);
|
|
|
1081 |
if ((raster1 = planes[plane].raster) != 0)
|
|
|
1082 |
cmd_getw(data_x, cbp);
|
|
|
1083 |
} else {
|
|
|
1084 |
planes[plane].raster = raster1;
|
|
|
1085 |
}
|
|
|
1086 |
planes[plane].data_x = data_x;
|
|
|
1087 |
}
|
|
|
1088 |
}
|
|
|
1089 |
goto idata;
|
|
|
1090 |
case cmd_opv_image_data:
|
|
|
1091 |
cmd_getw(data_height, cbp);
|
|
|
1092 |
if (data_height == 0) {
|
|
|
1093 |
if_debug0('L', " done image\n");
|
|
|
1094 |
code = gx_image_end(image_info, true);
|
|
|
1095 |
if (code < 0)
|
|
|
1096 |
goto out;
|
|
|
1097 |
continue;
|
|
|
1098 |
}
|
|
|
1099 |
{
|
|
|
1100 |
uint bytes_per_plane;
|
|
|
1101 |
int plane;
|
|
|
1102 |
|
|
|
1103 |
cmd_getw(bytes_per_plane, cbp);
|
|
|
1104 |
if_debug2('L', " height=%u raster=%u\n",
|
|
|
1105 |
data_height, bytes_per_plane);
|
|
|
1106 |
for (plane = 0;
|
|
|
1107 |
plane < image_info->num_planes;
|
|
|
1108 |
++plane
|
|
|
1109 |
) {
|
|
|
1110 |
planes[plane].data_x = data_x;
|
|
|
1111 |
planes[plane].raster = bytes_per_plane;
|
|
|
1112 |
}
|
|
|
1113 |
}
|
|
|
1114 |
idata: data_size = 0;
|
|
|
1115 |
{
|
|
|
1116 |
int plane;
|
|
|
1117 |
|
|
|
1118 |
for (plane = 0; plane < image_info->num_planes;
|
|
|
1119 |
++plane)
|
|
|
1120 |
data_size += planes[plane].raster;
|
|
|
1121 |
}
|
|
|
1122 |
data_size *= data_height;
|
|
|
1123 |
data_on_heap = 0;
|
|
|
1124 |
if (cbuf.end - cbp < data_size)
|
|
|
1125 |
cbp = top_up_cbuf(&cbuf, cbp);
|
|
|
1126 |
if (cbuf.end - cbp >= data_size) {
|
|
|
1127 |
planes[0].data = cbp;
|
|
|
1128 |
cbp += data_size;
|
|
|
1129 |
} else {
|
|
|
1130 |
uint cleft = cbuf.end - cbp;
|
|
|
1131 |
uint rleft = data_size - cleft;
|
|
|
1132 |
byte *rdata;
|
|
|
1133 |
|
|
|
1134 |
if (data_size > cbuf.end - cbuf.data) {
|
|
|
1135 |
/* Allocate a separate buffer. */
|
|
|
1136 |
rdata = data_on_heap =
|
|
|
1137 |
gs_alloc_bytes(mem, data_size,
|
|
|
1138 |
"clist image_data");
|
|
|
1139 |
if (rdata == 0) {
|
|
|
1140 |
code = gs_note_error(gs_error_VMerror);
|
|
|
1141 |
goto out;
|
|
|
1142 |
}
|
|
|
1143 |
} else
|
|
|
1144 |
rdata = cbuf.data;
|
|
|
1145 |
memmove(rdata, cbp, cleft);
|
|
|
1146 |
sgets(s, rdata + cleft, rleft,
|
|
|
1147 |
&rleft);
|
|
|
1148 |
planes[0].data = rdata;
|
|
|
1149 |
cbp = cbuf.end; /* force refill */
|
|
|
1150 |
}
|
|
|
1151 |
{
|
|
|
1152 |
int plane;
|
|
|
1153 |
const byte *data = planes[0].data;
|
|
|
1154 |
|
|
|
1155 |
for (plane = 0;
|
|
|
1156 |
plane < image_info->num_planes;
|
|
|
1157 |
++plane
|
|
|
1158 |
) {
|
|
|
1159 |
if (planes[plane].raster == 0)
|
|
|
1160 |
planes[plane].data = 0;
|
|
|
1161 |
else {
|
|
|
1162 |
planes[plane].data = data;
|
|
|
1163 |
data += planes[plane].raster *
|
|
|
1164 |
data_height;
|
|
|
1165 |
}
|
|
|
1166 |
}
|
|
|
1167 |
}
|
|
|
1168 |
#ifdef DEBUG
|
|
|
1169 |
if (gs_debug_c('L')) {
|
|
|
1170 |
int plane;
|
|
|
1171 |
|
|
|
1172 |
for (plane = 0; plane < image_info->num_planes;
|
|
|
1173 |
++plane)
|
|
|
1174 |
if (planes[plane].data != 0)
|
|
|
1175 |
cmd_print_bits(planes[plane].data,
|
|
|
1176 |
image_rect.q.x -
|
|
|
1177 |
image_rect.p.x,
|
|
|
1178 |
data_height,
|
|
|
1179 |
planes[plane].raster);
|
|
|
1180 |
}
|
|
|
1181 |
#endif
|
|
|
1182 |
code = gx_image_plane_data(image_info, planes,
|
|
|
1183 |
data_height);
|
|
|
1184 |
if (data_on_heap)
|
|
|
1185 |
gs_free_object(mem, data_on_heap,
|
|
|
1186 |
"clist image_data");
|
|
|
1187 |
data_x = 0;
|
|
|
1188 |
if (code < 0)
|
|
|
1189 |
goto out;
|
|
|
1190 |
continue;
|
|
|
1191 |
case cmd_opv_extend:
|
|
|
1192 |
switch (*cbp++) {
|
|
|
1193 |
case cmd_opv_ext_put_params:
|
|
|
1194 |
cbuf.ptr = cbp;
|
|
|
1195 |
code = read_put_params(&cbuf, &imager_state,
|
|
|
1196 |
cdev, mem);
|
|
|
1197 |
cbp = cbuf.ptr;
|
|
|
1198 |
if (code > 0)
|
|
|
1199 |
break; /* empty list */
|
|
|
1200 |
if (code < 0)
|
|
|
1201 |
goto out;
|
|
|
1202 |
if (playback_action == playback_action_setup)
|
|
|
1203 |
goto out;
|
|
|
1204 |
break;
|
|
|
1205 |
case cmd_opv_ext_create_compositor:
|
|
|
1206 |
cbuf.ptr = cbp;
|
|
|
1207 |
/*
|
|
|
1208 |
* The screen phase may have been changed during
|
|
|
1209 |
* the processing of masked images.
|
|
|
1210 |
*/
|
|
|
1211 |
gx_imager_setscreenphase(&imager_state,
|
|
|
1212 |
-x0, -y0, gs_color_select_all);
|
|
|
1213 |
code = read_create_compositor(&cbuf, &imager_state,
|
|
|
1214 |
cdev, mem, &target);
|
|
|
1215 |
cbp = cbuf.ptr;
|
|
|
1216 |
tdev = target;
|
|
|
1217 |
if (code < 0)
|
|
|
1218 |
goto out;
|
|
|
1219 |
break;
|
|
|
1220 |
case cmd_opv_ext_put_halftone:
|
|
|
1221 |
{
|
|
|
1222 |
uint ht_size;
|
|
|
1223 |
|
|
|
1224 |
enc_u_getw(ht_size, cbp);
|
|
|
1225 |
code = read_alloc_ht_buff(&ht_buff, ht_size, mem);
|
|
|
1226 |
if (code < 0)
|
|
|
1227 |
goto out;
|
|
|
1228 |
}
|
|
|
1229 |
break;
|
|
|
1230 |
case cmd_opv_ext_put_ht_seg:
|
|
|
1231 |
cbuf.ptr = cbp;
|
|
|
1232 |
code = read_ht_segment(&ht_buff, &cbuf,
|
|
|
1233 |
&imager_state, tdev,
|
|
|
1234 |
mem);
|
|
|
1235 |
cbp = cbuf.ptr;
|
|
|
1236 |
if (code < 0)
|
|
|
1237 |
goto out;
|
|
|
1238 |
break;
|
|
|
1239 |
case cmd_opv_ext_put_drawing_color:
|
|
|
1240 |
{
|
|
|
1241 |
uint color_size;
|
|
|
1242 |
const gx_device_color_type_t * pdct;
|
|
|
1243 |
|
|
|
1244 |
pdct = gx_get_dc_type_from_index(*cbp++);
|
|
|
1245 |
if (pdct == 0) {
|
|
|
1246 |
code = gs_note_error(gs_error_rangecheck);
|
|
|
1247 |
goto out;
|
|
|
1248 |
}
|
|
|
1249 |
enc_u_getw(color_size, cbp);
|
|
|
1250 |
if (cbp + color_size > cbuf.limit)
|
|
|
1251 |
cbp = top_up_cbuf(&cbuf, cbp);
|
|
|
1252 |
code = pdct->read(&dev_color, &imager_state,
|
|
|
1253 |
&dev_color, tdev, cbp,
|
|
|
1254 |
color_size, mem);
|
|
|
1255 |
if (code < 0)
|
|
|
1256 |
goto out;
|
|
|
1257 |
cbp += color_size;
|
|
|
1258 |
code = gx_color_load(&dev_color,
|
|
|
1259 |
&imager_state, tdev);
|
|
|
1260 |
if (code < 0)
|
|
|
1261 |
goto out;
|
|
|
1262 |
}
|
|
|
1263 |
break;
|
|
|
1264 |
default:
|
|
|
1265 |
goto bad_op;
|
|
|
1266 |
}
|
|
|
1267 |
break;
|
|
|
1268 |
default:
|
|
|
1269 |
goto bad_op;
|
|
|
1270 |
}
|
|
|
1271 |
continue;
|
|
|
1272 |
case cmd_op_segment >> 4:
|
|
|
1273 |
{
|
|
|
1274 |
int i, code;
|
|
|
1275 |
static const byte op_num_operands[] = {
|
|
|
1276 |
cmd_segment_op_num_operands_values
|
|
|
1277 |
};
|
|
|
1278 |
|
|
|
1279 |
if (!in_path) {
|
|
|
1280 |
ppos.x = int2fixed(state.rect.x);
|
|
|
1281 |
ppos.y = int2fixed(state.rect.y);
|
|
|
1282 |
if_debug2('L', " (%d,%d)", state.rect.x,
|
|
|
1283 |
state.rect.y);
|
|
|
1284 |
notes = sn_none;
|
|
|
1285 |
in_path = true;
|
|
|
1286 |
}
|
|
|
1287 |
for (i = 0; i < op_num_operands[op & 0xf]; ++i) {
|
|
|
1288 |
fixed v;
|
|
|
1289 |
int b = *cbp;
|
|
|
1290 |
|
|
|
1291 |
switch (b >> 5) {
|
|
|
1292 |
case 0:
|
|
|
1293 |
case 1:
|
|
|
1294 |
vs[i++] =
|
|
|
1295 |
((fixed) ((b ^ 0x20) - 0x20) << 13) +
|
|
|
1296 |
((int)cbp[1] << 5) + (cbp[2] >> 3);
|
|
|
1297 |
if_debug1('L', " %g", fixed2float(vs[i - 1]));
|
|
|
1298 |
cbp += 2;
|
|
|
1299 |
v = (int)((*cbp & 7) ^ 4) - 4;
|
|
|
1300 |
break;
|
|
|
1301 |
case 2:
|
|
|
1302 |
case 3:
|
|
|
1303 |
v = (b ^ 0x60) - 0x20;
|
|
|
1304 |
break;
|
|
|
1305 |
case 4:
|
|
|
1306 |
case 5:
|
|
|
1307 |
/*
|
|
|
1308 |
* Without the following cast, C's
|
|
|
1309 |
* brain-damaged coercion rules cause the
|
|
|
1310 |
* result to be considered unsigned, and not
|
|
|
1311 |
* sign-extended on machines where
|
|
|
1312 |
* sizeof(long) > sizeof(int).
|
|
|
1313 |
*/
|
|
|
1314 |
v = (((b ^ 0xa0) - 0x20) << 8) + (int)*++cbp;
|
|
|
1315 |
break;
|
|
|
1316 |
case 6:
|
|
|
1317 |
v = (b ^ 0xd0) - 0x10;
|
|
|
1318 |
vs[i] =
|
|
|
1319 |
((v << 8) + cbp[1]) << (_fixed_shift - 2);
|
|
|
1320 |
if_debug1('L', " %g", fixed2float(vs[i]));
|
|
|
1321 |
cbp += 2;
|
|
|
1322 |
continue;
|
|
|
1323 |
default /*case 7 */ :
|
|
|
1324 |
v = (int)(*++cbp ^ 0x80) - 0x80;
|
|
|
1325 |
for (b = 0; b < sizeof(fixed) - 3; ++b)
|
|
|
1326 |
v = (v << 8) + *++cbp;
|
|
|
1327 |
break;
|
|
|
1328 |
}
|
|
|
1329 |
cbp += 3;
|
|
|
1330 |
/* Absent the cast in the next statement, */
|
|
|
1331 |
/* the Borland C++ 4.5 compiler incorrectly */
|
|
|
1332 |
/* sign-extends the result of the shift. */
|
|
|
1333 |
vs[i] = (v << 16) + (uint) (cbp[-2] << 8) + cbp[-1];
|
|
|
1334 |
if_debug1('L', " %g", fixed2float(vs[i]));
|
|
|
1335 |
}
|
|
|
1336 |
if_debug0('L', "\n");
|
|
|
1337 |
code = clist_decode_segment(&path, op, vs, &ppos,
|
|
|
1338 |
x0, y0, notes);
|
|
|
1339 |
if (code < 0)
|
|
|
1340 |
goto out;
|
|
|
1341 |
}
|
|
|
1342 |
continue;
|
|
|
1343 |
case cmd_op_path >> 4:
|
|
|
1344 |
{
|
|
|
1345 |
gx_path fpath;
|
|
|
1346 |
gx_path * ppath = &path;
|
|
|
1347 |
|
|
|
1348 |
if_debug0('L', "\n");
|
|
|
1349 |
/* if in clip, flatten path first */
|
|
|
1350 |
if (in_clip) {
|
|
|
1351 |
gx_path_init_local(&fpath, mem);
|
|
|
1352 |
code = gx_path_add_flattened_accurate(&path, &fpath,
|
|
|
1353 |
gs_currentflat_inline(&imager_state),
|
|
|
1354 |
imager_state.accurate_curves);
|
|
|
1355 |
if (code < 0)
|
|
|
1356 |
goto out;
|
|
|
1357 |
ppath = &fpath;
|
|
|
1358 |
}
|
|
|
1359 |
switch (op) {
|
|
|
1360 |
case cmd_opv_fill:
|
|
|
1361 |
fill_params.rule = gx_rule_winding_number;
|
|
|
1362 |
goto fill;
|
|
|
1363 |
case cmd_opv_eofill:
|
|
|
1364 |
fill_params.rule = gx_rule_even_odd;
|
|
|
1365 |
fill:
|
|
|
1366 |
fill_params.adjust = imager_state.fill_adjust;
|
|
|
1367 |
fill_params.flatness = imager_state.flatness;
|
|
|
1368 |
fill_params.fill_zero_width =
|
|
|
1369 |
fill_params.adjust.x != 0 ||
|
|
|
1370 |
fill_params.adjust.y != 0;
|
|
|
1371 |
code = gx_fill_path_only(ppath, tdev,
|
|
|
1372 |
&imager_state,
|
|
|
1373 |
&fill_params,
|
|
|
1374 |
&dev_color, pcpath);
|
|
|
1375 |
break;
|
|
|
1376 |
case cmd_opv_stroke:
|
|
|
1377 |
stroke_params.flatness = imager_state.flatness;
|
|
|
1378 |
code = gx_stroke_path_only(ppath,
|
|
|
1379 |
(gx_path *) 0, tdev,
|
|
|
1380 |
&imager_state, &stroke_params,
|
|
|
1381 |
&dev_color, pcpath);
|
|
|
1382 |
break;
|
|
|
1383 |
case cmd_opv_polyfill:
|
|
|
1384 |
code = clist_do_polyfill(tdev, ppath, &dev_color,
|
|
|
1385 |
imager_state.log_op);
|
|
|
1386 |
break;
|
|
|
1387 |
default:
|
|
|
1388 |
goto bad_op;
|
|
|
1389 |
}
|
|
|
1390 |
if (ppath != &path)
|
|
|
1391 |
gx_path_free(ppath, "clist_render_band");
|
|
|
1392 |
}
|
|
|
1393 |
if (in_path) { /* path might be empty! */
|
|
|
1394 |
state.rect.x = fixed2int_var(ppos.x);
|
|
|
1395 |
state.rect.y = fixed2int_var(ppos.y);
|
|
|
1396 |
in_path = false;
|
|
|
1397 |
}
|
|
|
1398 |
gx_path_free(&path, "clist_render_band");
|
|
|
1399 |
gx_path_init_local(&path, mem);
|
|
|
1400 |
if (code < 0)
|
|
|
1401 |
goto out;
|
|
|
1402 |
continue;
|
|
|
1403 |
default:
|
|
|
1404 |
bad_op:lprintf5("Bad op %02x band y0 = %d file pos %ld buf pos %d/%d\n",
|
|
|
1405 |
op, y0, stell(s), (int)(cbp - cbuf.data), (int)(cbuf.end - cbuf.data));
|
|
|
1406 |
{
|
|
|
1407 |
const byte *pp;
|
|
|
1408 |
|
|
|
1409 |
for (pp = cbuf.data; pp < cbuf.end; pp += 10) {
|
|
|
1410 |
dlprintf1("%4d:", (int)(pp - cbuf.data));
|
|
|
1411 |
dprintf10(" %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
|
|
|
1412 |
pp[0], pp[1], pp[2], pp[3], pp[4],
|
|
|
1413 |
pp[5], pp[6], pp[7], pp[8], pp[9]);
|
|
|
1414 |
}
|
|
|
1415 |
}
|
|
|
1416 |
code = gs_note_error(gs_error_Fatal);
|
|
|
1417 |
goto out;
|
|
|
1418 |
}
|
|
|
1419 |
if_debug4('L', " x=%d y=%d w=%d h=%d\n",
|
|
|
1420 |
state.rect.x, state.rect.y, state.rect.width,
|
|
|
1421 |
state.rect.height);
|
|
|
1422 |
switch (op >> 4) {
|
|
|
1423 |
case cmd_op_fill_rect >> 4:
|
|
|
1424 |
case cmd_op_fill_rect_short >> 4:
|
|
|
1425 |
case cmd_op_fill_rect_tiny >> 4:
|
|
|
1426 |
if (!state.lop_enabled) {
|
|
|
1427 |
code = (*dev_proc(tdev, fill_rectangle))
|
|
|
1428 |
(tdev, state.rect.x - x0, state.rect.y - y0,
|
|
|
1429 |
state.rect.width, state.rect.height,
|
|
|
1430 |
state.colors[1]);
|
|
|
1431 |
break;
|
|
|
1432 |
}
|
|
|
1433 |
source = NULL;
|
|
|
1434 |
data_x = 0;
|
|
|
1435 |
raster = 0;
|
|
|
1436 |
colors[0] = colors[1] = state.colors[1];
|
|
|
1437 |
log_op = state.lop;
|
|
|
1438 |
pcolor = colors;
|
|
|
1439 |
do_rop:code = (*dev_proc(tdev, strip_copy_rop))
|
|
|
1440 |
(tdev, source, data_x, raster, gx_no_bitmap_id,
|
|
|
1441 |
pcolor, &state_tile,
|
|
|
1442 |
(state.tile_colors[0] == gx_no_color_index &&
|
|
|
1443 |
state.tile_colors[1] == gx_no_color_index ?
|
|
|
1444 |
NULL : state.tile_colors),
|
|
|
1445 |
state.rect.x - x0, state.rect.y - y0,
|
|
|
1446 |
state.rect.width - data_x, state.rect.height,
|
|
|
1447 |
tile_phase.x, tile_phase.y, log_op);
|
|
|
1448 |
data_x = 0;
|
|
|
1449 |
break;
|
|
|
1450 |
case cmd_op_tile_rect >> 4:
|
|
|
1451 |
case cmd_op_tile_rect_short >> 4:
|
|
|
1452 |
case cmd_op_tile_rect_tiny >> 4:
|
|
|
1453 |
/* Currently we don't use lop with tile_rectangle. */
|
|
|
1454 |
code = (*dev_proc(tdev, strip_tile_rectangle))
|
|
|
1455 |
(tdev, &state_tile,
|
|
|
1456 |
state.rect.x - x0, state.rect.y - y0,
|
|
|
1457 |
state.rect.width, state.rect.height,
|
|
|
1458 |
state.tile_colors[0], state.tile_colors[1],
|
|
|
1459 |
tile_phase.x, tile_phase.y);
|
|
|
1460 |
break;
|
|
|
1461 |
case cmd_op_copy_mono >> 4:
|
|
|
1462 |
if (state.lop_enabled) {
|
|
|
1463 |
pcolor = state.colors;
|
|
|
1464 |
log_op = state.lop;
|
|
|
1465 |
goto do_rop;
|
|
|
1466 |
}
|
|
|
1467 |
if ((op & cmd_copy_use_tile) || pcpath != NULL) { /*
|
|
|
1468 |
* This call of copy_mono originated as a call
|
|
|
1469 |
* of fill_mask.
|
|
|
1470 |
*/
|
|
|
1471 |
code = (*dev_proc(tdev, fill_mask))
|
|
|
1472 |
(tdev, source, data_x, raster, gx_no_bitmap_id,
|
|
|
1473 |
state.rect.x - x0, state.rect.y - y0,
|
|
|
1474 |
state.rect.width - data_x, state.rect.height,
|
|
|
1475 |
&dev_color, 1, imager_state.log_op, pcpath);
|
|
|
1476 |
} else
|
|
|
1477 |
code = (*dev_proc(tdev, copy_mono))
|
|
|
1478 |
(tdev, source, data_x, raster, gx_no_bitmap_id,
|
|
|
1479 |
state.rect.x - x0, state.rect.y - y0,
|
|
|
1480 |
state.rect.width - data_x, state.rect.height,
|
|
|
1481 |
state.colors[0], state.colors[1]);
|
|
|
1482 |
data_x = 0;
|
|
|
1483 |
break;
|
|
|
1484 |
case cmd_op_copy_color_alpha >> 4:
|
|
|
1485 |
if (state.color_is_alpha) {
|
|
|
1486 |
/****** CAN'T DO ROP WITH ALPHA ******/
|
|
|
1487 |
code = (*dev_proc(tdev, copy_alpha))
|
|
|
1488 |
(tdev, source, data_x, raster, gx_no_bitmap_id,
|
|
|
1489 |
state.rect.x - x0, state.rect.y - y0,
|
|
|
1490 |
state.rect.width - data_x, state.rect.height,
|
|
|
1491 |
state.colors[1], depth);
|
|
|
1492 |
} else {
|
|
|
1493 |
if (state.lop_enabled) {
|
|
|
1494 |
pcolor = NULL;
|
|
|
1495 |
log_op = state.lop;
|
|
|
1496 |
goto do_rop;
|
|
|
1497 |
}
|
|
|
1498 |
code = (*dev_proc(tdev, copy_color))
|
|
|
1499 |
(tdev, source, data_x, raster, gx_no_bitmap_id,
|
|
|
1500 |
state.rect.x - x0, state.rect.y - y0,
|
|
|
1501 |
state.rect.width - data_x, state.rect.height);
|
|
|
1502 |
}
|
|
|
1503 |
data_x = 0;
|
|
|
1504 |
break;
|
|
|
1505 |
default: /* can't happen */
|
|
|
1506 |
goto bad_op;
|
|
|
1507 |
}
|
|
|
1508 |
}
|
|
|
1509 |
/* Clean up before we exit. */
|
|
|
1510 |
out:
|
|
|
1511 |
if (ht_buff.pbuff != 0) {
|
|
|
1512 |
gs_free_object(mem, ht_buff.pbuff, "clist_playback_band(ht_buff)");
|
|
|
1513 |
ht_buff.pbuff = 0;
|
|
|
1514 |
ht_buff.pcurr = 0;
|
|
|
1515 |
}
|
|
|
1516 |
ht_buff.ht_size = 0;
|
|
|
1517 |
ht_buff.read_size = 0;
|
|
|
1518 |
|
|
|
1519 |
if (color_space.params.indexed.lookup.table.size)
|
|
|
1520 |
gs_free_const_string(mem,
|
|
|
1521 |
color_space.params.indexed.lookup.table.data,
|
|
|
1522 |
color_space.params.indexed.lookup.table.size,
|
|
|
1523 |
"color_space indexed table");
|
|
|
1524 |
gx_cpath_free(&clip_path, "clist_render_band exit");
|
|
|
1525 |
gx_path_free(&path, "clist_render_band exit");
|
|
|
1526 |
gs_imager_state_release(&imager_state);
|
|
|
1527 |
gs_free_object(mem, data_bits, "clist_playback_band(data_bits)");
|
|
|
1528 |
if (target != orig_target) {
|
|
|
1529 |
dev_proc(target, close_device)(target);
|
|
|
1530 |
gs_free_object(target->memory, target, "gxclrast discard compositor");
|
|
|
1531 |
target = orig_target;
|
|
|
1532 |
}
|
|
|
1533 |
if (code < 0)
|
|
|
1534 |
return_error(code);
|
|
|
1535 |
/* Check whether we have more pages to process. */
|
|
|
1536 |
if (playback_action != playback_action_setup &&
|
|
|
1537 |
(cbp < cbuf.end || !seofp(s))
|
|
|
1538 |
)
|
|
|
1539 |
goto in;
|
|
|
1540 |
return code;
|
|
|
1541 |
}
|
|
|
1542 |
|
|
|
1543 |
/* ---------------- Individual commands ---------------- */
|
|
|
1544 |
|
|
|
1545 |
/*
|
|
|
1546 |
* These single-use procedures implement a few large individual commands,
|
|
|
1547 |
* primarily for readability but also to avoid overflowing compilers'
|
|
|
1548 |
* optimization limits. They all take the command buffer as their first
|
|
|
1549 |
* parameter (pcb), assume that the current buffer pointer is in pcb->ptr,
|
|
|
1550 |
* and update it there.
|
|
|
1551 |
*/
|
|
|
1552 |
|
|
|
1553 |
private int
|
|
|
1554 |
read_set_tile_size(command_buf_t *pcb, tile_slot *bits)
|
|
|
1555 |
{
|
|
|
1556 |
const byte *cbp = pcb->ptr;
|
|
|
1557 |
uint rep_width, rep_height;
|
|
|
1558 |
byte bd = *cbp++;
|
|
|
1559 |
|
|
|
1560 |
bits->cb_depth = cmd_code_to_depth(bd);
|
|
|
1561 |
cmd_getw(rep_width, cbp);
|
|
|
1562 |
cmd_getw(rep_height, cbp);
|
|
|
1563 |
if (bd & 0x20) {
|
|
|
1564 |
cmd_getw(bits->x_reps, cbp);
|
|
|
1565 |
bits->width = rep_width * bits->x_reps;
|
|
|
1566 |
} else {
|
|
|
1567 |
bits->x_reps = 1;
|
|
|
1568 |
bits->width = rep_width;
|
|
|
1569 |
}
|
|
|
1570 |
if (bd & 0x40) {
|
|
|
1571 |
cmd_getw(bits->y_reps, cbp);
|
|
|
1572 |
bits->height = rep_height * bits->y_reps;
|
|
|
1573 |
} else {
|
|
|
1574 |
bits->y_reps = 1;
|
|
|
1575 |
bits->height = rep_height;
|
|
|
1576 |
}
|
|
|
1577 |
if (bd & 0x80)
|
|
|
1578 |
cmd_getw(bits->rep_shift, cbp);
|
|
|
1579 |
else
|
|
|
1580 |
bits->rep_shift = 0;
|
|
|
1581 |
if_debug6('L', " depth=%d size=(%d,%d), rep_size=(%d,%d), rep_shift=%d\n",
|
|
|
1582 |
bits->cb_depth, bits->width,
|
|
|
1583 |
bits->height, rep_width,
|
|
|
1584 |
rep_height, bits->rep_shift);
|
|
|
1585 |
bits->shift =
|
|
|
1586 |
(bits->rep_shift == 0 ? 0 :
|
|
|
1587 |
(bits->rep_shift * (bits->height / rep_height)) % rep_width);
|
|
|
1588 |
bits->cb_raster = bitmap_raster(bits->width * bits->cb_depth);
|
|
|
1589 |
pcb->ptr = cbp;
|
|
|
1590 |
return 0;
|
|
|
1591 |
}
|
|
|
1592 |
|
|
|
1593 |
private int
|
|
|
1594 |
read_set_bits(command_buf_t *pcb, tile_slot *bits, int compress,
|
|
|
1595 |
gx_clist_state *pcls, gx_strip_bitmap *tile, tile_slot **pslot,
|
|
|
1596 |
gx_device_clist_reader *cdev, gs_memory_t *mem)
|
|
|
1597 |
{
|
|
|
1598 |
const byte *cbp = pcb->ptr;
|
|
|
1599 |
uint rep_width = bits->width / bits->x_reps;
|
|
|
1600 |
uint rep_height = bits->height / bits->y_reps;
|
|
|
1601 |
uint index;
|
|
|
1602 |
ulong offset;
|
|
|
1603 |
uint width_bits = rep_width * bits->cb_depth;
|
|
|
1604 |
uint width_bytes;
|
|
|
1605 |
uint raster;
|
|
|
1606 |
uint bytes =
|
|
|
1607 |
clist_bitmap_bytes(width_bits, rep_height,
|
|
|
1608 |
compress |
|
|
|
1609 |
(rep_width < bits->width ?
|
|
|
1610 |
decompress_spread : 0) |
|
|
|
1611 |
decompress_elsewhere,
|
|
|
1612 |
&width_bytes,
|
|
|
1613 |
(uint *)&raster);
|
|
|
1614 |
byte *data;
|
|
|
1615 |
tile_slot *slot;
|
|
|
1616 |
|
|
|
1617 |
cmd_getw(index, cbp);
|
|
|
1618 |
cmd_getw(offset, cbp);
|
|
|
1619 |
if_debug2('L', " index=%d offset=%lu\n", pcls->tile_index, offset);
|
|
|
1620 |
pcls->tile_index = index;
|
|
|
1621 |
cdev->tile_table[pcls->tile_index].offset = offset;
|
|
|
1622 |
slot = (tile_slot *)(cdev->chunk.data + offset);
|
|
|
1623 |
*pslot = slot;
|
|
|
1624 |
*slot = *bits;
|
|
|
1625 |
tile->data = data = (byte *)(slot + 1);
|
|
|
1626 |
#ifdef DEBUG
|
|
|
1627 |
slot->index = pcls->tile_index;
|
|
|
1628 |
#endif
|
|
|
1629 |
if (compress) {
|
|
|
1630 |
/*
|
|
|
1631 |
* Decompress the image data. We'd like to share this code with the
|
|
|
1632 |
* similar code in copy_*, but right now we don't see how.
|
|
|
1633 |
*/
|
|
|
1634 |
stream_cursor_read r;
|
|
|
1635 |
stream_cursor_write w;
|
|
|
1636 |
/*
|
|
|
1637 |
* We don't know the data length a priori, so to be conservative, we
|
|
|
1638 |
* read the uncompressed size.
|
|
|
1639 |
*/
|
|
|
1640 |
uint cleft = pcb->end - cbp;
|
|
|
1641 |
|
|
|
1642 |
if (cleft < bytes) {
|
|
|
1643 |
uint nread = cbuf_size - cleft;
|
|
|
1644 |
|
|
|
1645 |
memmove(pcb->data, cbp, cleft);
|
|
|
1646 |
pcb->end_status = sgets(pcb->s, pcb->data + cleft, nread, &nread);
|
|
|
1647 |
set_cb_end(pcb, pcb->data + cleft + nread);
|
|
|
1648 |
cbp = pcb->data;
|
|
|
1649 |
}
|
|
|
1650 |
r.ptr = cbp - 1;
|
|
|
1651 |
r.limit = pcb->end - 1;
|
|
|
1652 |
w.ptr = data - 1;
|
|
|
1653 |
w.limit = w.ptr + bytes;
|
|
|
1654 |
switch (compress) {
|
|
|
1655 |
case cmd_compress_rle:
|
|
|
1656 |
{
|
|
|
1657 |
stream_RLD_state sstate;
|
|
|
1658 |
|
|
|
1659 |
clist_rld_init(&sstate);
|
|
|
1660 |
(*s_RLD_template.process)
|
|
|
1661 |
((stream_state *)&sstate, &r, &w, true);
|
|
|
1662 |
}
|
|
|
1663 |
break;
|
|
|
1664 |
case cmd_compress_cfe:
|
|
|
1665 |
{
|
|
|
1666 |
stream_CFD_state sstate;
|
|
|
1667 |
|
|
|
1668 |
clist_cfd_init(&sstate,
|
|
|
1669 |
width_bytes << 3 /*width_bits */ ,
|
|
|
1670 |
rep_height, mem);
|
|
|
1671 |
(*s_CFD_template.process)
|
|
|
1672 |
((stream_state *)&sstate, &r, &w, true);
|
|
|
1673 |
(*s_CFD_template.release)
|
|
|
1674 |
((stream_state *)&sstate);
|
|
|
1675 |
}
|
|
|
1676 |
break;
|
|
|
1677 |
default:
|
|
|
1678 |
return_error(gs_error_unregistered);
|
|
|
1679 |
}
|
|
|
1680 |
cbp = r.ptr + 1;
|
|
|
1681 |
} else if (rep_height > 1 && width_bytes != bits->cb_raster) {
|
|
|
1682 |
cbp = cmd_read_short_bits(pcb, data,
|
|
|
1683 |
width_bytes, rep_height,
|
|
|
1684 |
bits->cb_raster, cbp);
|
|
|
1685 |
} else {
|
|
|
1686 |
cbp = cmd_read_data(pcb, data, bytes, cbp);
|
|
|
1687 |
}
|
|
|
1688 |
if (bits->width > rep_width)
|
|
|
1689 |
bits_replicate_horizontally(data,
|
|
|
1690 |
rep_width * bits->cb_depth, rep_height,
|
|
|
1691 |
bits->cb_raster,
|
|
|
1692 |
bits->width * bits->cb_depth,
|
|
|
1693 |
bits->cb_raster);
|
|
|
1694 |
if (bits->height > rep_height)
|
|
|
1695 |
bits_replicate_vertically(data,
|
|
|
1696 |
rep_height, bits->cb_raster,
|
|
|
1697 |
bits->height);
|
|
|
1698 |
#ifdef DEBUG
|
|
|
1699 |
if (gs_debug_c('L'))
|
|
|
1700 |
cmd_print_bits(data, bits->width, bits->height, bits->cb_raster);
|
|
|
1701 |
#endif
|
|
|
1702 |
pcb->ptr = cbp;
|
|
|
1703 |
return 0;
|
|
|
1704 |
}
|
|
|
1705 |
|
|
|
1706 |
/* if necessary, allocate a buffer to hold a serialized halftone */
|
|
|
1707 |
private int
|
|
|
1708 |
read_alloc_ht_buff(ht_buff_t * pht_buff, uint ht_size, gs_memory_t * mem)
|
|
|
1709 |
{
|
|
|
1710 |
/* free the existing buffer, if any (usually none) */
|
|
|
1711 |
if (pht_buff->pbuff != 0) {
|
|
|
1712 |
gs_free_object(mem, pht_buff->pbuff, "read_alloc_ht_buff");
|
|
|
1713 |
pht_buff->pbuff = 0;
|
|
|
1714 |
}
|
|
|
1715 |
|
|
|
1716 |
/*
|
|
|
1717 |
* If the serialized halftone fits in the command buffer, no
|
|
|
1718 |
* additional buffer is required.
|
|
|
1719 |
*/
|
|
|
1720 |
if (ht_size > cbuf_ht_seg_max_size) {
|
|
|
1721 |
pht_buff->pbuff = gs_alloc_bytes(mem, ht_size, "read_alloc_ht_buff");
|
|
|
1722 |
if (pht_buff->pbuff == 0)
|
|
|
1723 |
return_error(gs_error_VMerror);
|
|
|
1724 |
}
|
|
|
1725 |
pht_buff->ht_size = ht_size;
|
|
|
1726 |
pht_buff->read_size = 0;
|
|
|
1727 |
pht_buff->pcurr = pht_buff->pbuff;
|
|
|
1728 |
return 0;
|
|
|
1729 |
}
|
|
|
1730 |
|
|
|
1731 |
/* read a halftone segment; if it is the final segment, build the halftone */
|
|
|
1732 |
private int
|
|
|
1733 |
read_ht_segment(
|
|
|
1734 |
ht_buff_t * pht_buff,
|
|
|
1735 |
command_buf_t * pcb,
|
|
|
1736 |
gs_imager_state * pis,
|
|
|
1737 |
gx_device * dev,
|
|
|
1738 |
gs_memory_t * mem )
|
|
|
1739 |
{
|
|
|
1740 |
const byte * cbp = pcb->ptr;
|
|
|
1741 |
const byte * pbuff = 0;
|
|
|
1742 |
uint ht_size = pht_buff->ht_size, seg_size;
|
|
|
1743 |
int code = 0;
|
|
|
1744 |
|
|
|
1745 |
/* get the segment size; refill command buffer if necessary */
|
|
|
1746 |
enc_u_getw(seg_size, cbp);
|
|
|
1747 |
if (cbp + seg_size > pcb->limit)
|
|
|
1748 |
cbp = top_up_cbuf(pcb, cbp);
|
|
|
1749 |
|
|
|
1750 |
if (pht_buff->pbuff == 0) {
|
|
|
1751 |
/* if not separate buffer, must be only one segment */
|
|
|
1752 |
if (seg_size != ht_size)
|
|
|
1753 |
return_error(gs_error_unknownerror);
|
|
|
1754 |
pbuff = cbp;
|
|
|
1755 |
} else {
|
|
|
1756 |
if (seg_size + pht_buff->read_size > pht_buff->ht_size)
|
|
|
1757 |
return_error(gs_error_unknownerror);
|
|
|
1758 |
memcpy(pht_buff->pcurr, cbp, seg_size);
|
|
|
1759 |
pht_buff->pcurr += seg_size;
|
|
|
1760 |
if ((pht_buff->read_size += seg_size) == ht_size)
|
|
|
1761 |
pbuff = pht_buff->pbuff;
|
|
|
1762 |
}
|
|
|
1763 |
|
|
|
1764 |
/* if everything has be read, covert back to a halftone */
|
|
|
1765 |
if (pbuff != 0) {
|
|
|
1766 |
code = gx_ht_read_and_install(pis, dev, pbuff, ht_size, mem);
|
|
|
1767 |
|
|
|
1768 |
/* release any buffered information */
|
|
|
1769 |
if (pht_buff->pbuff != 0) {
|
|
|
1770 |
gs_free_object(mem, pht_buff->pbuff, "read_alloc_ht_buff");
|
|
|
1771 |
pht_buff->pbuff = 0;
|
|
|
1772 |
pht_buff->pcurr = 0;
|
|
|
1773 |
}
|
|
|
1774 |
pht_buff->ht_size = 0;
|
|
|
1775 |
pht_buff->read_size = 0;
|
|
|
1776 |
}
|
|
|
1777 |
|
|
|
1778 |
/* update the command buffer ponter */
|
|
|
1779 |
pcb->ptr = cbp + seg_size;
|
|
|
1780 |
|
|
|
1781 |
return code;
|
|
|
1782 |
}
|
|
|
1783 |
|
|
|
1784 |
|
|
|
1785 |
private int
|
|
|
1786 |
read_set_misc2(command_buf_t *pcb, gs_imager_state *pis, segment_notes *pnotes)
|
|
|
1787 |
{
|
|
|
1788 |
const byte *cbp = pcb->ptr;
|
|
|
1789 |
uint mask, cb;
|
|
|
1790 |
|
|
|
1791 |
cmd_getw(mask, cbp);
|
|
|
1792 |
if (mask & cap_join_known) {
|
|
|
1793 |
cb = *cbp++;
|
|
|
1794 |
pis->line_params.cap = (gs_line_cap)((cb >> 3) & 7);
|
|
|
1795 |
pis->line_params.join = (gs_line_join)(cb & 7);
|
|
|
1796 |
if_debug2('L', " cap=%d join=%d\n",
|
|
|
1797 |
pis->line_params.cap, pis->line_params.join);
|
|
|
1798 |
}
|
|
|
1799 |
if (mask & cj_ac_sa_known) {
|
|
|
1800 |
cb = *cbp++;
|
|
|
1801 |
pis->line_params.curve_join = ((cb >> 2) & 7) - 1;
|
|
|
1802 |
pis->accurate_curves = (cb & 2) != 0;
|
|
|
1803 |
pis->stroke_adjust = cb & 1;
|
|
|
1804 |
if_debug3('L', " CJ=%d AC=%d SA=%d\n",
|
|
|
1805 |
pis->line_params.curve_join, pis->accurate_curves,
|
|
|
1806 |
pis->stroke_adjust);
|
|
|
1807 |
}
|
|
|
1808 |
if (mask & flatness_known) {
|
|
|
1809 |
cmd_get_value(pis->flatness, cbp);
|
|
|
1810 |
if_debug1('L', " flatness=%g\n", pis->flatness);
|
|
|
1811 |
}
|
|
|
1812 |
if (mask & line_width_known) {
|
|
|
1813 |
float width;
|
|
|
1814 |
|
|
|
1815 |
cmd_get_value(width, cbp);
|
|
|
1816 |
if_debug1('L', " line_width=%g\n", width);
|
|
|
1817 |
gx_set_line_width(&pis->line_params, width);
|
|
|
1818 |
}
|
|
|
1819 |
if (mask & miter_limit_known) {
|
|
|
1820 |
float limit;
|
|
|
1821 |
|
|
|
1822 |
cmd_get_value(limit, cbp);
|
|
|
1823 |
if_debug1('L', " miter_limit=%g\n", limit);
|
|
|
1824 |
gx_set_miter_limit(&pis->line_params, limit);
|
|
|
1825 |
}
|
|
|
1826 |
if (mask & op_bm_tk_known) {
|
|
|
1827 |
cb = *cbp++;
|
|
|
1828 |
pis->blend_mode = cb >> 3;
|
|
|
1829 |
pis->text_knockout = (cb & 4) != 0;
|
|
|
1830 |
/* the following usually have no effect; see gxclpath.c */
|
|
|
1831 |
pis->overprint_mode = (cb >> 1) & 1;
|
|
|
1832 |
pis->effective_overprint_mode = pis->overprint_mode;
|
|
|
1833 |
pis->overprint = cb & 1;
|
|
|
1834 |
if_debug4('L', " BM=%d TK=%d OPM=%d OP=%d\n",
|
|
|
1835 |
pis->blend_mode, pis->text_knockout, pis->overprint_mode,
|
|
|
1836 |
pis->overprint);
|
|
|
1837 |
}
|
|
|
1838 |
if (mask & segment_notes_known) {
|
|
|
1839 |
cb = *cbp++;
|
|
|
1840 |
*pnotes = (segment_notes)(cb & 0x3f);
|
|
|
1841 |
if_debug1('L', " notes=%d\n", *pnotes);
|
|
|
1842 |
}
|
|
|
1843 |
if (mask & opacity_alpha_known) {
|
|
|
1844 |
cmd_get_value(pis->opacity.alpha, cbp);
|
|
|
1845 |
if_debug1('L', " opacity.alpha=%g\n", pis->opacity.alpha);
|
|
|
1846 |
}
|
|
|
1847 |
if (mask & shape_alpha_known) {
|
|
|
1848 |
cmd_get_value(pis->shape.alpha, cbp);
|
|
|
1849 |
if_debug1('L', " shape.alpha=%g\n", pis->shape.alpha);
|
|
|
1850 |
}
|
|
|
1851 |
if (mask & alpha_known) {
|
|
|
1852 |
cmd_get_value(pis->alpha, cbp);
|
|
|
1853 |
if_debug1('L', " alpha=%u\n", pis->alpha);
|
|
|
1854 |
}
|
|
|
1855 |
pcb->ptr = cbp;
|
|
|
1856 |
return 0;
|
|
|
1857 |
}
|
|
|
1858 |
|
|
|
1859 |
private int
|
|
|
1860 |
read_set_color_space(command_buf_t *pcb, gs_imager_state *pis,
|
|
|
1861 |
const gs_color_space **ppcs, gs_color_space *pcolor_space,
|
|
|
1862 |
gs_memory_t *mem)
|
|
|
1863 |
{
|
|
|
1864 |
const byte *cbp = pcb->ptr;
|
|
|
1865 |
byte b = *cbp++;
|
|
|
1866 |
int index = b >> 4;
|
|
|
1867 |
const gs_color_space *pcs;
|
|
|
1868 |
int code = 0;
|
|
|
1869 |
|
|
|
1870 |
/*
|
|
|
1871 |
* The following are used only for a single, parameterless color space,
|
|
|
1872 |
* so they do not introduce any re-entrancy problems.
|
|
|
1873 |
*/
|
|
|
1874 |
static gs_color_space gray_cs, rgb_cs, cmyk_cs;
|
|
|
1875 |
|
|
|
1876 |
if_debug3('L', " %d%s%s\n", index,
|
|
|
1877 |
(b & 8 ? " (indexed)" : ""),
|
|
|
1878 |
(b & 4 ? "(proc)" : ""));
|
|
|
1879 |
switch (index) {
|
|
|
1880 |
case gs_color_space_index_DeviceGray:
|
|
|
1881 |
gs_cspace_init_DeviceGray(mem, &gray_cs);
|
|
|
1882 |
pcs = &gray_cs;
|
|
|
1883 |
break;
|
|
|
1884 |
case gs_color_space_index_DeviceRGB:
|
|
|
1885 |
gs_cspace_init_DeviceRGB(mem, &rgb_cs);
|
|
|
1886 |
pcs = &rgb_cs;
|
|
|
1887 |
break;
|
|
|
1888 |
case gs_color_space_index_DeviceCMYK:
|
|
|
1889 |
gs_cspace_init_DeviceCMYK(mem, &cmyk_cs);
|
|
|
1890 |
pcs = &cmyk_cs;
|
|
|
1891 |
break;
|
|
|
1892 |
default:
|
|
|
1893 |
code = gs_note_error(gs_error_rangecheck); /* others are NYI */
|
|
|
1894 |
goto out;
|
|
|
1895 |
}
|
|
|
1896 |
|
|
|
1897 |
/* Free any old indexed color space data. */
|
|
|
1898 |
if (pcolor_space->params.indexed.use_proc) {
|
|
|
1899 |
if (pcolor_space->params.indexed.lookup.map)
|
|
|
1900 |
gs_free_object(mem,
|
|
|
1901 |
pcolor_space->params.indexed.lookup.map->values,
|
|
|
1902 |
"old indexed map values");
|
|
|
1903 |
gs_free_object(mem, pcolor_space->params.indexed.lookup.map,
|
|
|
1904 |
"old indexed map");
|
|
|
1905 |
pcolor_space->params.indexed.lookup.map = 0;
|
|
|
1906 |
} else {
|
|
|
1907 |
if (pcolor_space->params.indexed.lookup.table.size)
|
|
|
1908 |
gs_free_const_string(mem,
|
|
|
1909 |
pcolor_space->params.indexed.lookup.table.data,
|
|
|
1910 |
pcolor_space->params.indexed.lookup.table.size,
|
|
|
1911 |
"color_spapce indexed table");
|
|
|
1912 |
pcolor_space->params.indexed.lookup.table.size = 0;
|
|
|
1913 |
}
|
|
|
1914 |
if (b & 8) {
|
|
|
1915 |
bool use_proc = (b & 4) != 0;
|
|
|
1916 |
int hival;
|
|
|
1917 |
int num_values;
|
|
|
1918 |
byte *data;
|
|
|
1919 |
uint data_size;
|
|
|
1920 |
|
|
|
1921 |
cmd_getw(hival, cbp);
|
|
|
1922 |
num_values = (hival + 1) * gs_color_space_num_components(pcs);
|
|
|
1923 |
if (use_proc) {
|
|
|
1924 |
gs_indexed_map *map;
|
|
|
1925 |
|
|
|
1926 |
code = alloc_indexed_map(&map, num_values, mem, "indexed map");
|
|
|
1927 |
if (code < 0)
|
|
|
1928 |
goto out;
|
|
|
1929 |
map->proc.lookup_index = lookup_indexed_map;
|
|
|
1930 |
pcolor_space->params.indexed.lookup.map = map;
|
|
|
1931 |
data = (byte *)map->values;
|
|
|
1932 |
data_size = num_values * sizeof(map->values[0]);
|
|
|
1933 |
} else {
|
|
|
1934 |
byte *table = gs_alloc_string(mem, num_values, "color_space indexed table");
|
|
|
1935 |
|
|
|
1936 |
if (table == 0) {
|
|
|
1937 |
code = gs_note_error(gs_error_VMerror);
|
|
|
1938 |
goto out;
|
|
|
1939 |
}
|
|
|
1940 |
pcolor_space->params.indexed.lookup.table.data = table;
|
|
|
1941 |
pcolor_space->params.indexed.lookup.table.size = num_values;
|
|
|
1942 |
data = table;
|
|
|
1943 |
data_size = num_values;
|
|
|
1944 |
}
|
|
|
1945 |
cbp = cmd_read_data(pcb, data, data_size, cbp);
|
|
|
1946 |
pcolor_space->type =
|
|
|
1947 |
&gs_color_space_type_Indexed;
|
|
|
1948 |
memmove(&pcolor_space->params.indexed.base_space, pcs,
|
|
|
1949 |
sizeof(pcolor_space->params.indexed.base_space));
|
|
|
1950 |
pcolor_space->params.indexed.hival = hival;
|
|
|
1951 |
pcolor_space->params.indexed.use_proc = use_proc;
|
|
|
1952 |
pcs = pcolor_space;
|
|
|
1953 |
}
|
|
|
1954 |
*ppcs = pcs;
|
|
|
1955 |
out:
|
|
|
1956 |
pcb->ptr = cbp;
|
|
|
1957 |
return code;
|
|
|
1958 |
}
|
|
|
1959 |
|
|
|
1960 |
private int
|
|
|
1961 |
read_begin_image(command_buf_t *pcb, gs_image_common_t *pic,
|
|
|
1962 |
const gs_color_space *pcs)
|
|
|
1963 |
{
|
|
|
1964 |
uint index = *(pcb->ptr)++;
|
|
|
1965 |
const gx_image_type_t *image_type = gx_image_type_table[index];
|
|
|
1966 |
stream s;
|
|
|
1967 |
int code;
|
|
|
1968 |
|
|
|
1969 |
/* This is sloppy, but we don't have enough information to do better. */
|
|
|
1970 |
pcb->ptr = top_up_cbuf(pcb, pcb->ptr);
|
|
|
1971 |
s_init(&s, NULL);
|
|
|
1972 |
sread_string(&s, pcb->ptr, pcb->end - pcb->ptr);
|
|
|
1973 |
code = image_type->sget(pic, &s, pcs);
|
|
|
1974 |
pcb->ptr = sbufptr(&s);
|
|
|
1975 |
return code;
|
|
|
1976 |
}
|
|
|
1977 |
|
|
|
1978 |
private int
|
|
|
1979 |
read_put_params(command_buf_t *pcb, gs_imager_state *pis,
|
|
|
1980 |
gx_device_clist_reader *cdev, gs_memory_t *mem)
|
|
|
1981 |
{
|
|
|
1982 |
const byte *cbp = pcb->ptr;
|
|
|
1983 |
gs_c_param_list param_list;
|
|
|
1984 |
uint cleft;
|
|
|
1985 |
uint rleft;
|
|
|
1986 |
bool alloc_data_on_heap = false;
|
|
|
1987 |
byte *param_buf;
|
|
|
1988 |
uint param_length;
|
|
|
1989 |
int code = 0;
|
|
|
1990 |
|
|
|
1991 |
cmd_get_value(param_length, cbp);
|
|
|
1992 |
if_debug1('L', " length=%d\n", param_length);
|
|
|
1993 |
if (param_length == 0) {
|
|
|
1994 |
code = 1; /* empty list */
|
|
|
1995 |
goto out;
|
|
|
1996 |
}
|
|
|
1997 |
|
|
|
1998 |
/* Make sure entire serialized param list is in cbuf */
|
|
|
1999 |
/* + force void* alignment */
|
|
|
2000 |
cbp = top_up_cbuf(pcb, cbp);
|
|
|
2001 |
if (pcb->end - cbp >= param_length) {
|
|
|
2002 |
param_buf = (byte *)cbp;
|
|
|
2003 |
cbp += param_length;
|
|
|
2004 |
} else {
|
|
|
2005 |
/* NOTE: param_buf must be maximally aligned */
|
|
|
2006 |
param_buf = gs_alloc_bytes(mem, param_length,
|
|
|
2007 |
"clist put_params");
|
|
|
2008 |
if (param_buf == 0) {
|
|
|
2009 |
code = gs_note_error(gs_error_VMerror);
|
|
|
2010 |
goto out;
|
|
|
2011 |
}
|
|
|
2012 |
alloc_data_on_heap = true;
|
|
|
2013 |
cleft = pcb->end - cbp;
|
|
|
2014 |
rleft = param_length - cleft;
|
|
|
2015 |
memmove(param_buf, cbp, cleft);
|
|
|
2016 |
pcb->end_status = sgets(pcb->s, param_buf + cleft, rleft, &rleft);
|
|
|
2017 |
cbp = pcb->end; /* force refill */
|
|
|
2018 |
}
|
|
|
2019 |
|
|
|
2020 |
/*
|
|
|
2021 |
* Create a gs_c_param_list & expand into it.
|
|
|
2022 |
* NB that gs_c_param_list doesn't copy objects into
|
|
|
2023 |
* it, but rather keeps *pointers* to what's passed.
|
|
|
2024 |
* That's OK because the serialized format keeps enough
|
|
|
2025 |
* space to hold expanded versions of the structures,
|
|
|
2026 |
* but this means we cannot deallocate source buffer
|
|
|
2027 |
* until the gs_c_param_list is deleted.
|
|
|
2028 |
*/
|
|
|
2029 |
gs_c_param_list_write(¶m_list, mem);
|
|
|
2030 |
code = gs_param_list_unserialize
|
|
|
2031 |
( (gs_param_list *)¶m_list, param_buf );
|
|
|
2032 |
if (code >= 0 && code != param_length)
|
|
|
2033 |
code = gs_error_unknownerror; /* must match */
|
|
|
2034 |
if (code >= 0) {
|
|
|
2035 |
gs_c_param_list_read(¶m_list);
|
|
|
2036 |
code = gs_imager_putdeviceparams(pis, (gx_device *)cdev,
|
|
|
2037 |
(gs_param_list *)¶m_list);
|
|
|
2038 |
}
|
|
|
2039 |
gs_c_param_list_release(¶m_list);
|
|
|
2040 |
if (alloc_data_on_heap)
|
|
|
2041 |
gs_free_object(mem, param_buf, "clist put_params");
|
|
|
2042 |
|
|
|
2043 |
out:
|
|
|
2044 |
pcb->ptr = cbp;
|
|
|
2045 |
return code;
|
|
|
2046 |
}
|
|
|
2047 |
|
|
|
2048 |
/*
|
|
|
2049 |
* Read a "create_compositor" command, and execute the command.
|
|
|
2050 |
*
|
|
|
2051 |
* This code assumes that a the largest create compositor command,
|
|
|
2052 |
* including the compositor name size, is smaller than the data buffer
|
|
|
2053 |
* size. This assumption is inherent in the basic design of the coding
|
|
|
2054 |
* and the de-serializer interface, as no length field is provided.
|
|
|
2055 |
* At the time of this writing, no compositor comes remotely close to
|
|
|
2056 |
* violating this assumption (largest create_compositor is about 16
|
|
|
2057 |
* bytes, while the command data buffer is 800 bytes), nor is any likely
|
|
|
2058 |
* to do so in the future. In the unlikely event that this assumption
|
|
|
2059 |
* is violated, a change in the encoding would be called for).
|
|
|
2060 |
*/
|
|
|
2061 |
extern_gs_find_compositor();
|
|
|
2062 |
|
|
|
2063 |
private int
|
|
|
2064 |
read_create_compositor(
|
|
|
2065 |
command_buf_t * pcb,
|
|
|
2066 |
gs_imager_state * pis,
|
|
|
2067 |
gx_device_clist_reader * cdev,
|
|
|
2068 |
gs_memory_t * mem,
|
|
|
2069 |
gx_device ** ptarget )
|
|
|
2070 |
{
|
|
|
2071 |
const byte * cbp = pcb->ptr;
|
|
|
2072 |
int comp_id = 0, code = 0;
|
|
|
2073 |
const gs_composite_type_t * pcomp_type = 0;
|
|
|
2074 |
gs_composite_t * pcomp;
|
|
|
2075 |
gx_device * tdev = *ptarget;
|
|
|
2076 |
|
|
|
2077 |
/* fill the command buffer (see comment above) */
|
|
|
2078 |
cbp = top_up_cbuf(pcb, cbp);
|
|
|
2079 |
|
|
|
2080 |
/* find the appropriate compositor method vector */
|
|
|
2081 |
comp_id = *cbp++;
|
|
|
2082 |
if ((pcomp_type = gs_find_compositor(comp_id)) == 0)
|
|
|
2083 |
return_error(gs_error_unknownerror);
|
|
|
2084 |
|
|
|
2085 |
/* de-serialize the compositor */
|
|
|
2086 |
code = pcomp_type->procs.read(&pcomp, cbp, pcb->end - cbp, mem);
|
|
|
2087 |
if (code > 0)
|
|
|
2088 |
cbp += code;
|
|
|
2089 |
pcb->ptr = cbp;
|
|
|
2090 |
if (code < 0 || pcomp == 0)
|
|
|
2091 |
return code;
|
|
|
2092 |
|
|
|
2093 |
/*
|
|
|
2094 |
* Apply the compositor to the target device; note that this may
|
|
|
2095 |
* change the target device.
|
|
|
2096 |
*/
|
|
|
2097 |
code = dev_proc(tdev, create_compositor)(tdev, &tdev, pcomp, pis, mem);
|
|
|
2098 |
if (code >= 0 && tdev != *ptarget) {
|
|
|
2099 |
rc_increment(tdev);
|
|
|
2100 |
*ptarget = tdev;
|
|
|
2101 |
}
|
|
|
2102 |
|
|
|
2103 |
/* Perform any updates for the clist device required */
|
|
|
2104 |
code = pcomp->type->procs.clist_compositor_read_update(pcomp,
|
|
|
2105 |
(gx_device *)cdev, tdev, pis, mem);
|
|
|
2106 |
if (code < 0)
|
|
|
2107 |
return code;
|
|
|
2108 |
|
|
|
2109 |
/* free the compositor object */
|
|
|
2110 |
if (pcomp != 0)
|
|
|
2111 |
gs_free_object(mem, pcomp, "read_create_compositor");
|
|
|
2112 |
|
|
|
2113 |
return code;
|
|
|
2114 |
}
|
|
|
2115 |
|
|
|
2116 |
/* ---------------- Utilities ---------------- */
|
|
|
2117 |
|
|
|
2118 |
/* Read and unpack a short bitmap */
|
|
|
2119 |
private const byte *
|
|
|
2120 |
cmd_read_short_bits(command_buf_t *pcb, byte *data, int width_bytes,
|
|
|
2121 |
int height, uint raster, const byte *cbp)
|
|
|
2122 |
{
|
|
|
2123 |
uint bytes = width_bytes * height;
|
|
|
2124 |
const byte *pdata = data /*src*/ + bytes;
|
|
|
2125 |
byte *udata = data /*dest*/ + height * raster;
|
|
|
2126 |
|
|
|
2127 |
cbp = cmd_read_data(pcb, data, width_bytes * height, cbp);
|
|
|
2128 |
while (--height >= 0) {
|
|
|
2129 |
udata -= raster, pdata -= width_bytes;
|
|
|
2130 |
switch (width_bytes) {
|
|
|
2131 |
default:
|
|
|
2132 |
memmove(udata, pdata, width_bytes);
|
|
|
2133 |
break;
|
|
|
2134 |
case 6:
|
|
|
2135 |
udata[5] = pdata[5];
|
|
|
2136 |
case 5:
|
|
|
2137 |
udata[4] = pdata[4];
|
|
|
2138 |
case 4:
|
|
|
2139 |
udata[3] = pdata[3];
|
|
|
2140 |
case 3:
|
|
|
2141 |
udata[2] = pdata[2];
|
|
|
2142 |
case 2:
|
|
|
2143 |
udata[1] = pdata[1];
|
|
|
2144 |
case 1:
|
|
|
2145 |
udata[0] = pdata[0];
|
|
|
2146 |
case 0:; /* shouldn't happen */
|
|
|
2147 |
}
|
|
|
2148 |
}
|
|
|
2149 |
return cbp;
|
|
|
2150 |
}
|
|
|
2151 |
|
|
|
2152 |
/* Read a rectangle. */
|
|
|
2153 |
private const byte *
|
|
|
2154 |
cmd_read_rect(int op, gx_cmd_rect * prect, const byte * cbp)
|
|
|
2155 |
{
|
|
|
2156 |
cmd_getw(prect->x, cbp);
|
|
|
2157 |
if (op & 0xf)
|
|
|
2158 |
prect->y += ((op >> 2) & 3) - 2;
|
|
|
2159 |
else {
|
|
|
2160 |
cmd_getw(prect->y, cbp);
|
|
|
2161 |
}
|
|
|
2162 |
cmd_getw(prect->width, cbp);
|
|
|
2163 |
if (op & 0xf)
|
|
|
2164 |
prect->height += (op & 3) - 2;
|
|
|
2165 |
else {
|
|
|
2166 |
cmd_getw(prect->height, cbp);
|
|
|
2167 |
}
|
|
|
2168 |
return cbp;
|
|
|
2169 |
}
|
|
|
2170 |
|
|
|
2171 |
/* Read a transformation matrix. */
|
|
|
2172 |
private const byte *
|
|
|
2173 |
cmd_read_matrix(gs_matrix * pmat, const byte * cbp)
|
|
|
2174 |
{
|
|
|
2175 |
stream s;
|
|
|
2176 |
|
|
|
2177 |
s_init(&s, NULL);
|
|
|
2178 |
sread_string(&s, cbp, 1 + sizeof(*pmat));
|
|
|
2179 |
sget_matrix(&s, pmat);
|
|
|
2180 |
return cbp + stell(&s);
|
|
|
2181 |
}
|
|
|
2182 |
|
|
|
2183 |
/*
|
|
|
2184 |
* Select a map for loading with data.
|
|
|
2185 |
*
|
|
|
2186 |
* This routine has three outputs:
|
|
|
2187 |
* *pmdata - points to the map data.
|
|
|
2188 |
* *pcomp_num - points to a component number if the map is a transfer
|
|
|
2189 |
* map which has been set via the setcolortransfer operator.
|
|
|
2190 |
* A. value of NULL indicates that no component number is to
|
|
|
2191 |
* be sent for this map.
|
|
|
2192 |
* *pcount - the size of the map (in bytes).
|
|
|
2193 |
*/
|
|
|
2194 |
private int
|
|
|
2195 |
cmd_select_map(cmd_map_index map_index, cmd_map_contents cont,
|
|
|
2196 |
gs_imager_state * pis, int ** pcomp_num, frac ** pmdata,
|
|
|
2197 |
uint * pcount, gs_memory_t * mem)
|
|
|
2198 |
{
|
|
|
2199 |
gx_transfer_map *map;
|
|
|
2200 |
gx_transfer_map **pmap;
|
|
|
2201 |
const char *cname;
|
|
|
2202 |
|
|
|
2203 |
*pcomp_num = NULL; /* Only used for color transfer maps */
|
|
|
2204 |
switch (map_index) {
|
|
|
2205 |
case cmd_map_transfer:
|
|
|
2206 |
if_debug0('L', " transfer");
|
|
|
2207 |
rc_unshare_struct(pis->set_transfer.gray, gx_transfer_map,
|
|
|
2208 |
&st_transfer_map, mem, return_error(gs_error_VMerror),
|
|
|
2209 |
"cmd_select_map(default_transfer)");
|
|
|
2210 |
map = pis->set_transfer.gray;
|
|
|
2211 |
/* Release all current maps */
|
|
|
2212 |
rc_decrement(pis->set_transfer.red, "cmd_select_map(red)");
|
|
|
2213 |
pis->set_transfer.red = NULL;
|
|
|
2214 |
pis->set_transfer.red_component_num = -1;
|
|
|
2215 |
rc_decrement(pis->set_transfer.green, "cmd_select_map(green)");
|
|
|
2216 |
pis->set_transfer.green = NULL;
|
|
|
2217 |
pis->set_transfer.green_component_num = -1;
|
|
|
2218 |
rc_decrement(pis->set_transfer.blue, "cmd_select_map(blue)");
|
|
|
2219 |
pis->set_transfer.blue = NULL;
|
|
|
2220 |
pis->set_transfer.blue_component_num = -1;
|
|
|
2221 |
goto transfer2;
|
|
|
2222 |
case cmd_map_transfer_0:
|
|
|
2223 |
pmap = &pis->set_transfer.red;
|
|
|
2224 |
*pcomp_num = &pis->set_transfer.red_component_num;
|
|
|
2225 |
goto transfer1;
|
|
|
2226 |
case cmd_map_transfer_1:
|
|
|
2227 |
pmap = &pis->set_transfer.green;
|
|
|
2228 |
*pcomp_num = &pis->set_transfer.green_component_num;
|
|
|
2229 |
goto transfer1;
|
|
|
2230 |
case cmd_map_transfer_2:
|
|
|
2231 |
pmap = &pis->set_transfer.blue;
|
|
|
2232 |
*pcomp_num = &pis->set_transfer.blue_component_num;
|
|
|
2233 |
goto transfer1;
|
|
|
2234 |
case cmd_map_transfer_3:
|
|
|
2235 |
pmap = &pis->set_transfer.gray;
|
|
|
2236 |
*pcomp_num = &pis->set_transfer.gray_component_num;
|
|
|
2237 |
transfer1: {
|
|
|
2238 |
int i = map_index - cmd_map_transfer_0;
|
|
|
2239 |
|
|
|
2240 |
if_debug1('L', " transfer[%d]", i);
|
|
|
2241 |
}
|
|
|
2242 |
rc_unshare_struct(*pmap, gx_transfer_map, &st_transfer_map, mem,
|
|
|
2243 |
return_error(gs_error_VMerror), "cmd_select_map(transfer)");
|
|
|
2244 |
map = *pmap;
|
|
|
2245 |
|
|
|
2246 |
transfer2: if (cont != cmd_map_other) {
|
|
|
2247 |
gx_set_identity_transfer(map);
|
|
|
2248 |
*pmdata = 0;
|
|
|
2249 |
*pcount = 0;
|
|
|
2250 |
return 0;
|
|
|
2251 |
}
|
|
|
2252 |
break;
|
|
|
2253 |
case cmd_map_black_generation:
|
|
|
2254 |
if_debug0('L', " black generation");
|
|
|
2255 |
pmap = &pis->black_generation;
|
|
|
2256 |
cname = "cmd_select_map(black generation)";
|
|
|
2257 |
goto alloc;
|
|
|
2258 |
case cmd_map_undercolor_removal:
|
|
|
2259 |
if_debug0('L', " undercolor removal");
|
|
|
2260 |
pmap = &pis->undercolor_removal;
|
|
|
2261 |
cname = "cmd_select_map(undercolor removal)";
|
|
|
2262 |
alloc: if (cont == cmd_map_none) {
|
|
|
2263 |
rc_decrement(*pmap, cname);
|
|
|
2264 |
*pmap = 0;
|
|
|
2265 |
*pmdata = 0;
|
|
|
2266 |
*pcount = 0;
|
|
|
2267 |
return 0;
|
|
|
2268 |
}
|
|
|
2269 |
rc_unshare_struct(*pmap, gx_transfer_map, &st_transfer_map,
|
|
|
2270 |
mem, return_error(gs_error_VMerror), cname);
|
|
|
2271 |
map = *pmap;
|
|
|
2272 |
if (cont == cmd_map_identity) {
|
|
|
2273 |
gx_set_identity_transfer(map);
|
|
|
2274 |
*pmdata = 0;
|
|
|
2275 |
*pcount = 0;
|
|
|
2276 |
return 0;
|
|
|
2277 |
}
|
|
|
2278 |
break;
|
|
|
2279 |
default:
|
|
|
2280 |
*pmdata = 0;
|
|
|
2281 |
return 0;
|
|
|
2282 |
}
|
|
|
2283 |
map->proc = gs_mapped_transfer;
|
|
|
2284 |
*pmdata = map->values;
|
|
|
2285 |
*pcount = sizeof(map->values);
|
|
|
2286 |
return 0;
|
|
|
2287 |
}
|
|
|
2288 |
|
|
|
2289 |
/* Create a device halftone for the imager if necessary. */
|
|
|
2290 |
private int
|
|
|
2291 |
cmd_create_dev_ht(gx_device_halftone **ppdht, gs_memory_t *mem)
|
|
|
2292 |
{
|
|
|
2293 |
gx_device_halftone *pdht = *ppdht;
|
|
|
2294 |
|
|
|
2295 |
if (pdht == 0) {
|
|
|
2296 |
rc_header rc;
|
|
|
2297 |
|
|
|
2298 |
rc_alloc_struct_1(pdht, gx_device_halftone, &st_device_halftone, mem,
|
|
|
2299 |
return_error(gs_error_VMerror),
|
|
|
2300 |
"cmd_create_dev_ht");
|
|
|
2301 |
rc = pdht->rc;
|
|
|
2302 |
memset(pdht, 0, sizeof(*pdht));
|
|
|
2303 |
pdht->rc = rc;
|
|
|
2304 |
*ppdht = pdht;
|
|
|
2305 |
}
|
|
|
2306 |
return 0;
|
|
|
2307 |
}
|
|
|
2308 |
|
|
|
2309 |
/* Resize the halftone components array if necessary. */
|
|
|
2310 |
private int
|
|
|
2311 |
cmd_resize_halftone(gx_device_halftone **ppdht, uint num_comp,
|
|
|
2312 |
gs_memory_t * mem)
|
|
|
2313 |
{
|
|
|
2314 |
int code = cmd_create_dev_ht(ppdht, mem);
|
|
|
2315 |
gx_device_halftone *pdht = *ppdht;
|
|
|
2316 |
|
|
|
2317 |
if (code < 0)
|
|
|
2318 |
return code;
|
|
|
2319 |
if (num_comp != pdht->num_comp) {
|
|
|
2320 |
gx_ht_order_component *pcomp;
|
|
|
2321 |
|
|
|
2322 |
/*
|
|
|
2323 |
* We must be careful not to shrink or free the components array
|
|
|
2324 |
* before releasing any relevant elements.
|
|
|
2325 |
*/
|
|
|
2326 |
if (num_comp < pdht->num_comp) {
|
|
|
2327 |
uint i;
|
|
|
2328 |
|
|
|
2329 |
/* Don't release the default order. */
|
|
|
2330 |
for (i = pdht->num_comp; i-- > num_comp;)
|
|
|
2331 |
if (pdht->components[i].corder.bit_data != pdht->order.bit_data)
|
|
|
2332 |
gx_ht_order_release(&pdht->components[i].corder, mem, true);
|
|
|
2333 |
if (num_comp == 0) {
|
|
|
2334 |
gs_free_object(mem, pdht->components, "cmd_resize_halftone");
|
|
|
2335 |
pcomp = 0;
|
|
|
2336 |
} else {
|
|
|
2337 |
pcomp = gs_resize_object(mem, pdht->components, num_comp,
|
|
|
2338 |
"cmd_resize_halftone");
|
|
|
2339 |
if (pcomp == 0) {
|
|
|
2340 |
pdht->num_comp = num_comp; /* attempt consistency */
|
|
|
2341 |
return_error(gs_error_VMerror);
|
|
|
2342 |
}
|
|
|
2343 |
}
|
|
|
2344 |
} else {
|
|
|
2345 |
/* num_comp > pdht->num_comp */
|
|
|
2346 |
if (pdht->num_comp == 0)
|
|
|
2347 |
pcomp = gs_alloc_struct_array(mem, num_comp,
|
|
|
2348 |
gx_ht_order_component,
|
|
|
2349 |
&st_ht_order_component_element,
|
|
|
2350 |
"cmd_resize_halftone");
|
|
|
2351 |
else
|
|
|
2352 |
pcomp = gs_resize_object(mem, pdht->components, num_comp,
|
|
|
2353 |
"cmd_resize_halftone");
|
|
|
2354 |
if (pcomp == 0)
|
|
|
2355 |
return_error(gs_error_VMerror);
|
|
|
2356 |
memset(&pcomp[pdht->num_comp], 0,
|
|
|
2357 |
sizeof(*pcomp) * (num_comp - pdht->num_comp));
|
|
|
2358 |
}
|
|
|
2359 |
pdht->num_comp = num_comp;
|
|
|
2360 |
pdht->components = pcomp;
|
|
|
2361 |
}
|
|
|
2362 |
return 0;
|
|
|
2363 |
}
|
|
|
2364 |
|
|
|
2365 |
/* ------ Path operations ------ */
|
|
|
2366 |
|
|
|
2367 |
/* Decode a path segment. */
|
|
|
2368 |
private int
|
|
|
2369 |
clist_decode_segment(gx_path * ppath, int op, fixed vs[6],
|
|
|
2370 |
gs_fixed_point * ppos, int x0, int y0, segment_notes notes)
|
|
|
2371 |
{
|
|
|
2372 |
fixed px = ppos->x - int2fixed(x0);
|
|
|
2373 |
fixed py = ppos->y - int2fixed(y0);
|
|
|
2374 |
int code;
|
|
|
2375 |
|
|
|
2376 |
#define A vs[0]
|
|
|
2377 |
#define B vs[1]
|
|
|
2378 |
#define C vs[2]
|
|
|
2379 |
#define D vs[3]
|
|
|
2380 |
#define E vs[4]
|
|
|
2381 |
#define F vs[5]
|
|
|
2382 |
|
|
|
2383 |
switch (op) {
|
|
|
2384 |
case cmd_opv_rmoveto:
|
|
|
2385 |
code = gx_path_add_point(ppath, px += A, py += B);
|
|
|
2386 |
break;
|
|
|
2387 |
case cmd_opv_rlineto:
|
|
|
2388 |
code = gx_path_add_line_notes(ppath, px += A, py += B, notes);
|
|
|
2389 |
break;
|
|
|
2390 |
case cmd_opv_hlineto:
|
|
|
2391 |
code = gx_path_add_line_notes(ppath, px += A, py, notes);
|
|
|
2392 |
break;
|
|
|
2393 |
case cmd_opv_vlineto:
|
|
|
2394 |
code = gx_path_add_line_notes(ppath, px, py += A, notes);
|
|
|
2395 |
break;
|
|
|
2396 |
case cmd_opv_rmlineto:
|
|
|
2397 |
if ((code = gx_path_add_point(ppath, px += A, py += B)) < 0)
|
|
|
2398 |
break;
|
|
|
2399 |
code = gx_path_add_line_notes(ppath, px += C, py += D, notes);
|
|
|
2400 |
break;
|
|
|
2401 |
case cmd_opv_rm2lineto:
|
|
|
2402 |
if ((code = gx_path_add_point(ppath, px += A, py += B)) < 0 ||
|
|
|
2403 |
(code = gx_path_add_line_notes(ppath, px += C, py += D,
|
|
|
2404 |
notes)) < 0
|
|
|
2405 |
)
|
|
|
2406 |
break;
|
|
|
2407 |
code = gx_path_add_line_notes(ppath, px += E, py += F, notes);
|
|
|
2408 |
break;
|
|
|
2409 |
case cmd_opv_rm3lineto:
|
|
|
2410 |
if ((code = gx_path_add_point(ppath, px += A, py += B)) < 0 ||
|
|
|
2411 |
(code = gx_path_add_line_notes(ppath, px += C, py += D,
|
|
|
2412 |
notes)) < 0 ||
|
|
|
2413 |
(code = gx_path_add_line_notes(ppath, px += E, py += F,
|
|
|
2414 |
notes)) < 0
|
|
|
2415 |
)
|
|
|
2416 |
break;
|
|
|
2417 |
code = gx_path_add_line_notes(ppath, px -= C, py -= D, notes);
|
|
|
2418 |
break;
|
|
|
2419 |
case cmd_opv_rrcurveto: /* a b c d e f => a b a+c b+d a+c+e b+d+f */
|
|
|
2420 |
rrc: E += (C += A);
|
|
|
2421 |
F += (D += B);
|
|
|
2422 |
curve: code = gx_path_add_curve_notes(ppath, px + A, py + B,
|
|
|
2423 |
px + C, py + D,
|
|
|
2424 |
px + E, py + F, notes);
|
|
|
2425 |
px += E, py += F;
|
|
|
2426 |
break;
|
|
|
2427 |
case cmd_opv_hvcurveto: /* a b c d => a 0 a+b c a+b c+d */
|
|
|
2428 |
hvc: F = C + D, D = C, E = C = A + B, B = 0;
|
|
|
2429 |
goto curve;
|
|
|
2430 |
case cmd_opv_vhcurveto: /* a b c d => 0 a b a+c b+d a+c */
|
|
|
2431 |
vhc: E = B + D, F = D = A + C, C = B, B = A, A = 0;
|
|
|
2432 |
goto curve;
|
|
|
2433 |
case cmd_opv_nrcurveto: /* a b c d => 0 0 a b a+c b+d */
|
|
|
2434 |
F = B + D, E = A + C, D = B, C = A, B = A = 0;
|
|
|
2435 |
goto curve;
|
|
|
2436 |
case cmd_opv_rncurveto: /* a b c d => a b a+c b+d a+c b+d */
|
|
|
2437 |
F = D += B, E = C += A;
|
|
|
2438 |
goto curve;
|
|
|
2439 |
case cmd_opv_vqcurveto: /* a b => VH a b TS(a,b) TS(b,a) */
|
|
|
2440 |
if ((A ^ B) < 0)
|
|
|
2441 |
C = -B, D = -A;
|
|
|
2442 |
else
|
|
|
2443 |
C = B, D = A;
|
|
|
2444 |
goto vhc;
|
|
|
2445 |
case cmd_opv_hqcurveto: /* a b => HV a TS(a,b) b TS(b,a) */
|
|
|
2446 |
if ((A ^ B) < 0)
|
|
|
2447 |
D = -A, C = B, B = -B;
|
|
|
2448 |
else
|
|
|
2449 |
D = A, C = B;
|
|
|
2450 |
goto hvc;
|
|
|
2451 |
case cmd_opv_scurveto: /* (a b c d e f) => */
|
|
|
2452 |
{
|
|
|
2453 |
fixed a = A, b = B;
|
|
|
2454 |
|
|
|
2455 |
/* See gxclpath.h for details on the following. */
|
|
|
2456 |
if (A == 0) {
|
|
|
2457 |
/* Previous curve was vh or vv */
|
|
|
2458 |
A = E - C, B = D - F, C = C - a, D = b - D, E = a, F = -b;
|
|
|
2459 |
} else {
|
|
|
2460 |
/* Previous curve was hv or hh */
|
|
|
2461 |
A = C - E, B = F - D, C = a - C, D = D - b, E = -a, F = b;
|
|
|
2462 |
}
|
|
|
2463 |
}
|
|
|
2464 |
goto rrc;
|
|
|
2465 |
case cmd_opv_closepath:
|
|
|
2466 |
code = gx_path_close_subpath(ppath);
|
|
|
2467 |
gx_path_current_point(ppath, (gs_fixed_point *) vs);
|
|
|
2468 |
px = A, py = B;
|
|
|
2469 |
break;
|
|
|
2470 |
default:
|
|
|
2471 |
return_error(gs_error_rangecheck);
|
|
|
2472 |
}
|
|
|
2473 |
#undef A
|
|
|
2474 |
#undef B
|
|
|
2475 |
#undef C
|
|
|
2476 |
#undef D
|
|
|
2477 |
#undef E
|
|
|
2478 |
#undef F
|
|
|
2479 |
ppos->x = px + int2fixed(x0);
|
|
|
2480 |
ppos->y = py + int2fixed(y0);
|
|
|
2481 |
return code;
|
|
|
2482 |
}
|
|
|
2483 |
|
|
|
2484 |
/*
|
|
|
2485 |
* Execute a polyfill -- either a fill_parallelogram or a fill_triangle.
|
|
|
2486 |
* If we ever implement fill_trapezoid in the band list, that will be
|
|
|
2487 |
* detected here too.
|
|
|
2488 |
*
|
|
|
2489 |
* Note that degenerate parallelograms or triangles may collapse into
|
|
|
2490 |
* a single line or point. We must check for this so we don't try to
|
|
|
2491 |
* access non-existent segments.
|
|
|
2492 |
*/
|
|
|
2493 |
private int
|
|
|
2494 |
clist_do_polyfill(gx_device *dev, gx_path *ppath,
|
|
|
2495 |
const gx_drawing_color *pdcolor,
|
|
|
2496 |
gs_logical_operation_t lop)
|
|
|
2497 |
{
|
|
|
2498 |
const subpath *psub = ppath->first_subpath;
|
|
|
2499 |
const segment *pseg1;
|
|
|
2500 |
const segment *pseg2;
|
|
|
2501 |
int code;
|
|
|
2502 |
|
|
|
2503 |
if (psub && (pseg1 = psub->next) != 0 && (pseg2 = pseg1->next) != 0) {
|
|
|
2504 |
fixed px = psub->pt.x, py = psub->pt.y;
|
|
|
2505 |
fixed ax = pseg1->pt.x - px, ay = pseg1->pt.y - py;
|
|
|
2506 |
fixed bx, by;
|
|
|
2507 |
/*
|
|
|
2508 |
* We take advantage of the fact that the parameter lists for
|
|
|
2509 |
* fill_parallelogram and fill_triangle are identical.
|
|
|
2510 |
*/
|
|
|
2511 |
dev_proc_fill_parallelogram((*fill));
|
|
|
2512 |
|
|
|
2513 |
if (pseg2->next) {
|
|
|
2514 |
/* Parallelogram */
|
|
|
2515 |
fill = dev_proc(dev, fill_parallelogram);
|
|
|
2516 |
bx = pseg2->pt.x - pseg1->pt.x;
|
|
|
2517 |
by = pseg2->pt.y - pseg1->pt.y;
|
|
|
2518 |
} else {
|
|
|
2519 |
/* Triangle */
|
|
|
2520 |
fill = dev_proc(dev, fill_triangle);
|
|
|
2521 |
bx = pseg2->pt.x - px;
|
|
|
2522 |
by = pseg2->pt.y - py;
|
|
|
2523 |
}
|
|
|
2524 |
code = fill(dev, px, py, ax, ay, bx, by, pdcolor, lop);
|
|
|
2525 |
} else
|
|
|
2526 |
code = 0;
|
|
|
2527 |
gx_path_new(ppath);
|
|
|
2528 |
return code;
|
|
|
2529 |
}
|