lib/devices/record.c

   1 /* gfxdevice_record.cc
   2
   3    Part of the swftools package.
   4
   5    Copyright (c) 2005 Matthias Kramm <kramm@quiss.org>
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  20
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <math.h>
  24 #include "../../config.h"
  25 #ifdef HAVE_UNISTD_H
  26 #include <unistd.h>
  27 #endif
  28 #include <memory.h>
  29 #ifdef HAVE_IO_H
  30 #include <io.h>
  31 #endif
  32 #include <zlib.h>
  33 #include <string.h>
  34 #include <assert.h>
  35 #include "../gfxdevice.h"
  36 #include "../gfxtools.h"
  37 #include "../gfxfont.h"
  38 #include "../types.h"
  39 #include "../bitio.h"
  40 #include "../log.h"
  41 #include "../os.h"
  42 #include "../png.h"
  43 #ifdef HAVE_FASTLZ
  44 #include "../fastlz.h"
  45 #endif
  46 #include "record.h"
  47
  48 //#define STATS
  49 #define COMPRESS_IMAGES
  50 //#define FILTER_IMAGES
  51
  52 typedef struct _state {
  53     char*last_string[16];
  54     gfxcolor_t last_color[16];
  55     gfxmatrix_t last_matrix[16];
  56
  57 #ifdef STATS
  58     int size_matrices;
  59     int size_positions;
  60     int size_images;
  61     int size_lines;
  62     int size_colors;
  63     int size_fonts;
  64     int size_chars;
  65 #endif
  66 } state_t;
  67
  68 typedef struct _internal {
  69     gfxfontlist_t* fontlist;
  70     state_t state;
  71
  72     writer_t w;
  73     int cliplevel;
  74     char use_tempfile;
  75     char*filename;
  76 } internal_t;
  77
  78 typedef struct _internal_result {
  79     char use_tempfile;
  80     char*filename;
  81     void*data;
  82     int length;
  83 } internal_result_t;
  84
  85 #define OP_END 0x00
  86 #define OP_SETPARAM 0x01
  87 #define OP_STROKE 0x02
  88 #define OP_STARTCLIP 0x03
  89 #define OP_ENDCLIP 0x04
  90 #define OP_FILL 0x05
  91 #define OP_FILLBITMAP 0x06
  92 #define OP_FILLGRADIENT 0x07
  93 #define OP_ADDFONT 0x08
  94 #define OP_DRAWCHAR 0x09
  95 #define OP_DRAWLINK 0x0a
  96 #define OP_STARTPAGE 0x0b
  97 #define OP_ENDPAGE 0x0c
  98 #define OP_FINISH 0x0d
  99
 100 #define FLAG_SAME_AS_LAST 0x10
 101 #define FLAG_ZERO_FONT 0x20
 102
 103 #define LINE_MOVETO 0x0e
 104 #define LINE_LINETO 0x0f
 105 #define LINE_SPLINETO 0x10
 106
 107 /* ----------------- reading/writing of low level primitives -------------- */
 108
 109 static void dumpLine(writer_t*w, state_t*state, gfxline_t*line)
 110 {
 111     while(line) {
 112         if(line->type == gfx_moveTo) {
 113             writer_writeU8(w, LINE_MOVETO);
 114             writer_writeDouble(w, line->x);
 115             writer_writeDouble(w, line->y);
 116 #ifdef STATS
 117             state->size_lines += 1+8+8;
 118 #endif
 119         } else if(line->type == gfx_lineTo) {
 120             writer_writeU8(w, LINE_LINETO);
 121             writer_writeDouble(w, line->x);
 122             writer_writeDouble(w, line->y);
 123 #ifdef STATS
 124             state->size_lines += 1+8+8;
 125 #endif
 126         } else if(line->type == gfx_splineTo) {
 127             writer_writeU8(w, LINE_SPLINETO);
 128             writer_writeDouble(w, line->x);
 129             writer_writeDouble(w, line->y);
 130             writer_writeDouble(w, line->sx);
 131             writer_writeDouble(w, line->sy);
 132 #ifdef STATS
 133             state->size_lines += 1+8+8+8+8;
 134 #endif
 135         }
 136         line = line->next;
 137     }
 138     writer_writeU8(w, OP_END);
 139 #ifdef STATS
 140     state->size_lines += 1;
 141 #endif
 142 }
 143 static gfxline_t* readLine(reader_t*r, state_t*s)
 144 {
 145     gfxline_t*start = 0, *pos = 0;
 146     while(1) {
 147         unsigned char op = reader_readU8(r);
 148         if(op == OP_END)
 149             break;
 150         gfxline_t*line = (gfxline_t*)rfx_calloc(sizeof(gfxline_t));
 151         if(!start) {
 152             start = pos = line;
 153         } else {
 154             pos->next = line;
 155             pos = line;
 156         }
 157         if(op == LINE_MOVETO) {
 158             line->type = gfx_moveTo;
 159             line->x = reader_readDouble(r);
 160             line->y = reader_readDouble(r);
 161         } else if(op == LINE_LINETO) {
 162             line->type = gfx_lineTo;
 163             line->x = reader_readDouble(r);
 164             line->y = reader_readDouble(r);
 165         } else if(op == LINE_SPLINETO) {
 166             line->type = gfx_splineTo;
 167             line->x = reader_readDouble(r);
 168             line->y = reader_readDouble(r);
 169             line->sx = reader_readDouble(r);
 170             line->sy = reader_readDouble(r);
 171         }
 172     }
 173     return start;
 174 }
 175
 176 static void dumpImage(writer_t*w, state_t*state, gfximage_t*img)
 177 {
 178     int oldpos = w->pos;
 179     writer_writeU16(w, img->width);
 180     writer_writeU16(w, img->height);
 181 #ifdef COMPRESS_IMAGES
 182     //35.3% images (2027305 bytes) (with filter, Z_BEST_COMPRESSION)
 183     //39.9% images (2458904 bytes) (with filter, Z_BEST_SPEED)
 184     //45.2% images (3055340 bytes) (without filter)
 185     //45.9% images (3149247 bytes) (without filter, 5)
 186     //48.0% images (3480495 bytes) (with filter, fastlz)
 187     //48.0% images (3488650 bytes) (without filter, Z_BEST_SPEED)
 188     //55.3% images (4665889 bytes) (without filter, fastlz level 2)
 189     //55.6% images (4726334 bytes) (without filter, fastlz level 1)
 190     //83.0% images (18091804 bytes) (no compression)
 191
 192     gfxcolor_t*image;
 193 #ifdef FILTER_IMAGES
 194     unsigned char*filter = malloc(img->height);
 195     int y;
 196     image = malloc(img->width*img->height*sizeof(gfxcolor_t));
 197     for(y=0;y<img->height;y++) {
 198         filter[y] = png_apply_filter_32(
 199                 (void*)&image[y*img->width],
 200                 (void*)&img->data[y*img->width], img->width, y);
 201     }
 202 #else
 203     image = img->data;
 204 #endif
 205     int size = img->width*img->height;
 206     uLongf compressdata_size = compressBound(size*sizeof(gfxcolor_t));
 207     void*compressdata = malloc(compressdata_size);
 208
 209 #ifdef HAVE_FASTLZ
 210     compressdata_size = fastlz_compress_level(2, (void*)image, size*sizeof(gfxcolor_t), compressdata);
 211 #else
 212     compress2(compressdata, &compressdata_size, (void*)image, sizeof(gfxcolor_t)*size, Z_BEST_SPEED);
 213 #endif
 214
 215     writer_writeU32(w, compressdata_size);
 216 #ifdef FILTER_IMAGES
 217     w->write(w, filter, img->height);
 218     free(filter);
 219     free(image);
 220 #endif
 221     w->write(w, compressdata, compressdata_size);
 222 #else
 223     w->write(w, img->data, img->width*img->height*sizeof(gfxcolor_t));
 224 #endif
 225 #ifdef STATS
 226     state->size_images += w->pos - oldpos;
 227 #endif
 228 }
 229 static gfximage_t readImage(reader_t*r, state_t*state)
 230 {
 231     gfximage_t img;
 232     img.width = reader_readU16(r);
 233     img.height = reader_readU16(r);
 234     uLongf size = img.width*img.height*sizeof(gfxcolor_t);
 235     img.data = malloc(size);
 236 #ifdef COMPRESS_IMAGES
 237     uLongf compressdata_size = reader_readU32(r);
 238     void*compressdata = malloc(compressdata_size);
 239 # ifdef FILTER_IMAGES
 240     unsigned char*filter = malloc(img.height);
 241     r->read(r, filter, img.height);
 242 # endif
 243     r->read(r, compressdata, compressdata_size);
 244
 245 # ifdef HAVE_FASTLZ
 246     fastlz_decompress(compressdata, compressdata_size, (void*)img.data, size);
 247 # else
 248     uncompress((void*)img.data, &size, compressdata, compressdata_size);
 249 # endif
 250
 251 # ifdef FILTER_IMAGES
 252     int y;
 253     unsigned char*line = malloc(img.width*sizeof(gfxcolor_t));
 254     for(y=0;y<img.height;y++) {
 255         png_inverse_filter_32(filter[y], (void*)&img.data[y*img.width],
 256                               y?(void*)&img.data[(y-1)*img.width]:(void*)0,
 257                               line, img.width);
 258         memcpy(&img.data[y*img.width], line, img.width*sizeof(gfxcolor_t));
 259     }
 260     free(line);
 261     free(filter);
 262 # endif
 263
 264 #else
 265     r->read(r, img.data, size);
 266 #endif
 267     return img;
 268 }
 269
 270 static void dumpMatrix(writer_t*w, state_t*state, gfxmatrix_t*matrix)
 271 {
 272     writer_writeDouble(w, matrix->m00);
 273     writer_writeDouble(w, matrix->m01);
 274     writer_writeDouble(w, matrix->m10);
 275     writer_writeDouble(w, matrix->m11);
 276     writer_writeDouble(w, matrix->tx);
 277     writer_writeDouble(w, matrix->ty);
 278 #ifdef STATS
 279     state->size_matrices += 6*8;
 280 #endif
 281 }
 282 static gfxmatrix_t readMatrix(reader_t*r, state_t*state)
 283 {
 284     gfxmatrix_t matrix;
 285     matrix.m00 = reader_readDouble(r);
 286     matrix.m01 = reader_readDouble(r);
 287     matrix.m10 = reader_readDouble(r);
 288     matrix.m11 = reader_readDouble(r);
 289     matrix.tx = reader_readDouble(r);
 290     matrix.ty = reader_readDouble(r);
 291     return matrix;
 292 }
 293 static void dumpXY(writer_t*w, state_t*state, gfxmatrix_t*matrix)
 294 {
 295     writer_writeDouble(w, matrix->tx);
 296     writer_writeDouble(w, matrix->ty);
 297 #ifdef STATS
 298     state->size_positions += 2*8;
 299 #endif
 300 }
 301 static void readXY(reader_t*r, state_t*state, gfxmatrix_t*m)
 302 {
 303     m->tx = reader_readDouble(r);
 304     m->ty = reader_readDouble(r);
 305 }
 306
 307 static void dumpColor(writer_t*w, state_t*state, gfxcolor_t*color)
 308 {
 309     writer_writeU8(w, color->r);
 310     writer_writeU8(w, color->g);
 311     writer_writeU8(w, color->b);
 312     writer_writeU8(w, color->a);
 313 #ifdef STATS
 314     state->size_colors += 4;
 315 #endif
 316 }
 317 static gfxcolor_t readColor(reader_t*r, state_t*state)
 318 {
 319     gfxcolor_t col;
 320     col.r = reader_readU8(r);
 321     col.g = reader_readU8(r);
 322     col.b = reader_readU8(r);
 323     col.a = reader_readU8(r);
 324     return col;
 325 }
 326
 327 static void dumpGradient(writer_t*w, state_t*state, gfxgradient_t*gradient)
 328 {
 329     while(gradient) {
 330         writer_writeU8(w, 1);
 331         dumpColor(w, state, &gradient->color);
 332         writer_writeFloat(w, gradient->pos);
 333         gradient = gradient->next;
 334     }
 335     writer_writeU8(w, 0);
 336 }
 337 static gfxgradient_t* readGradient(reader_t*r, state_t*state)
 338 {
 339     gfxgradient_t*start = 0, *pos = 0;
 340     while(1) {
 341         U8 op = reader_readU8(r);
 342         if(!op)
 343             break;
 344         gfxgradient_t*g = (gfxgradient_t*)rfx_calloc(sizeof(gfxgradient_t));
 345         if(!start) {
 346             start = pos = g;
 347         } else {
 348             pos->next = g;
 349             pos = g;
 350         }
 351         g->color = readColor(r, state);
 352         g->pos = reader_readFloat(r);
 353     }
 354     return start;
 355 }
 356
 357 static void dumpCXForm(writer_t*w, state_t*state, gfxcxform_t*c)
 358 {
 359     if(!c) {
 360         writer_writeU8(w, 0);
 361     } else {
 362         writer_writeU8(w, 1);
 363         writer_writeFloat(w, c->rr); writer_writeFloat(w, c->rg); writer_writeFloat(w, c->rb); writer_writeFloat(w, c->ra);
 364         writer_writeFloat(w, c->gr); writer_writeFloat(w, c->gg); writer_writeFloat(w, c->gb); writer_writeFloat(w, c->ga);
 365         writer_writeFloat(w, c->br); writer_writeFloat(w, c->bg); writer_writeFloat(w, c->bb); writer_writeFloat(w, c->ba);
 366         writer_writeFloat(w, c->ar); writer_writeFloat(w, c->ag); writer_writeFloat(w, c->ab); writer_writeFloat(w, c->aa);
 367     }
 368 }
 369 static gfxcxform_t* readCXForm(reader_t*r, state_t*state)
 370 {
 371     U8 type = reader_readU8(r);
 372     if(!type)
 373         return 0;
 374     gfxcxform_t* c = (gfxcxform_t*)rfx_calloc(sizeof(gfxcxform_t));
 375     c->rr = reader_readFloat(r); c->rg = reader_readFloat(r); c->rb = reader_readFloat(r); c->ra = reader_readFloat(r);
 376     c->gr = reader_readFloat(r); c->gg = reader_readFloat(r); c->gb = reader_readFloat(r); c->ga = reader_readFloat(r);
 377     c->br = reader_readFloat(r); c->bg = reader_readFloat(r); c->bb = reader_readFloat(r); c->ba = reader_readFloat(r);
 378     c->ar = reader_readFloat(r); c->ag = reader_readFloat(r); c->ab = reader_readFloat(r); c->aa = reader_readFloat(r);
 379     return c;
 380 }
 381
 382 static void dumpFont(writer_t*w, state_t*state, gfxfont_t*font)
 383 {
 384     int oldpos = w->pos;
 385 #ifdef STATS
 386     int old_size_lines = state->size_lines;
 387 #endif
 388     writer_writeString(w, font->id);
 389     writer_writeU32(w, font->num_glyphs);
 390     writer_writeU32(w, font->max_unicode);
 391     writer_writeDouble(w, font->ascent);
 392     writer_writeDouble(w, font->descent);
 393     int t;
 394     for(t=0;t<font->num_glyphs;t++) {
 395         dumpLine(w, state, font->glyphs[t].line);
 396         writer_writeDouble(w, font->glyphs[t].advance);
 397         writer_writeU32(w, font->glyphs[t].unicode);
 398         if(font->glyphs[t].name) {
 399             writer_writeString(w,font->glyphs[t].name);
 400         } else {
 401             writer_writeU8(w,0);
 402         }
 403     }
 404     for(t=0;t<font->max_unicode;t++) {
 405         writer_writeU32(w, font->unicode2glyph[t]);
 406     }
 407     writer_writeU32(w, font->kerning_size);
 408     for(t=0;t<font->kerning_size;t++) {
 409         writer_writeU32(w, font->kerning[t].c1);
 410         writer_writeU32(w, font->kerning[t].c2);
 411         writer_writeU32(w, font->kerning[t].advance);
 412     }
 413 #ifdef STATS
 414     state->size_lines = old_size_lines;
 415     state->size_fonts += w->pos - oldpos;
 416 #endif
 417 }
 418 static gfxfont_t*readFont(reader_t*r, state_t*state)
 419 {
 420     gfxfont_t* font = (gfxfont_t*)rfx_calloc(sizeof(gfxfont_t));
 421     font->id = reader_readString(r);
 422     font->num_glyphs = reader_readU32(r);
 423     font->max_unicode = reader_readU32(r);
 424     font->ascent = reader_readDouble(r);
 425     font->descent = reader_readDouble(r);
 426     font->glyphs = (gfxglyph_t*)rfx_calloc(sizeof(gfxglyph_t)*font->num_glyphs);
 427     font->unicode2glyph = (int*)rfx_calloc(sizeof(font->unicode2glyph[0])*font->max_unicode);
 428     int t;
 429     for(t=0;t<font->num_glyphs;t++) {
 430         font->glyphs[t].line = readLine(r, state);
 431         font->glyphs[t].advance = reader_readDouble(r);
 432         font->glyphs[t].unicode = reader_readU32(r);
 433         font->glyphs[t].name = reader_readString(r);
 434         if(!font->glyphs[t].name[0]) {
 435             free((void*)(font->glyphs[t].name));
 436             font->glyphs[t].name = 0;
 437         }
 438     }
 439     for(t=0;t<font->max_unicode;t++) {
 440         font->unicode2glyph[t] = reader_readU32(r);
 441     }
 442     font->kerning_size = reader_readU32(r);
 443     if(font->kerning_size) {
 444         font->kerning = malloc(sizeof(gfxkerning_t)*font->kerning_size);
 445         for(t=0;t<font->kerning_size;t++) {
 446             font->kerning[t].c1 = reader_readU32(r);
 447             font->kerning[t].c2 = reader_readU32(r);
 448             font->kerning[t].advance = reader_readU32(r);
 449         }
 450     }
 451     return font;
 452 }
 453
 454 /* ----------------- reading/writing of primitives with caching -------------- */
 455
 456 static char* read_string(reader_t*r, state_t*state, U8 id, U8 flags)
 457 {
 458     assert(id>=0 && id<16);
 459     if(flags&FLAG_SAME_AS_LAST) {
 460         assert(state->last_string[id]);
 461         return strdup(state->last_string[id]);
 462     }
 463     char*s = reader_readString(r);
 464     state->last_string[id] = strdup(s);
 465     return s;
 466 }
 467 static gfxcolor_t read_color(reader_t*r, state_t*state, U8 id, U8 flags)
 468 {
 469     assert(id>=0 && id<16);
 470     if(flags&FLAG_SAME_AS_LAST)
 471         return state->last_color[id];
 472     gfxcolor_t c = readColor(r, state);
 473     state->last_color[id] = c;
 474     return c;
 475 }
 476 static gfxmatrix_t read_matrix(reader_t*r, state_t*state, U8 id, U8 flags)
 477 {
 478     assert(id>=0 && id<16);
 479     if(flags&FLAG_SAME_AS_LAST) {
 480         gfxmatrix_t m = state->last_matrix[id];
 481         readXY(r, state, &m);
 482         return m;
 483     }
 484     gfxmatrix_t m = readMatrix(r, state);
 485     state->last_matrix[id] = m;
 486     return m;
 487 }
 488
 489 /* --------------------------- record device operations ---------------------- */
 490
 491 static int record_setparameter(struct _gfxdevice*dev, const char*key, const char*value)
 492 {
 493     internal_t*i = (internal_t*)dev->internal;
 494     msg("<trace> record: %08x SETPARAM %s %s\n", dev, key, value);
 495     writer_writeU8(&i->w, OP_SETPARAM);
 496     writer_writeString(&i->w, key);
 497     writer_writeString(&i->w, value);
 498     return 1;
 499 }
 500
 501 static void record_stroke(struct _gfxdevice*dev, gfxline_t*line, gfxcoord_t width, gfxcolor_t*color, gfx_capType cap_style, gfx_joinType joint_style, gfxcoord_t miterLimit)
 502 {
 503     internal_t*i = (internal_t*)dev->internal;
 504     msg("<trace> record: %08x STROKE\n", dev);
 505     writer_writeU8(&i->w, OP_STROKE);
 506     writer_writeDouble(&i->w, width);
 507     writer_writeDouble(&i->w, miterLimit);
 508     dumpColor(&i->w, &i->state, color);
 509     writer_writeU8(&i->w, cap_style);
 510     writer_writeU8(&i->w, joint_style);
 511     dumpLine(&i->w, &i->state, line);
 512 }
 513
 514 static void record_startclip(struct _gfxdevice*dev, gfxline_t*line)
 515 {
 516     internal_t*i = (internal_t*)dev->internal;
 517     msg("<trace> record: %08x STARTCLIP\n", dev);
 518     writer_writeU8(&i->w, OP_STARTCLIP);
 519     dumpLine(&i->w, &i->state, line);
 520     i->cliplevel++;
 521 }
 522
 523 static void record_endclip(struct _gfxdevice*dev)
 524 {
 525     internal_t*i = (internal_t*)dev->internal;
 526     msg("<trace> record: %08x ENDCLIP\n", dev);
 527     writer_writeU8(&i->w, OP_ENDCLIP);
 528     i->cliplevel--;
 529     if(i->cliplevel<0) {
 530         msg("<error> record: endclip() without startclip()");
 531     }
 532 }
 533
 534 static void record_fill(struct _gfxdevice*dev, gfxline_t*line, gfxcolor_t*color)
 535 {
 536     internal_t*i = (internal_t*)dev->internal;
 537     msg("<trace> record: %08x FILL\n", dev);
 538     writer_writeU8(&i->w, OP_FILL);
 539     dumpColor(&i->w, &i->state, color);
 540     dumpLine(&i->w, &i->state, line);
 541 }
 542
 543 static void record_fillbitmap(struct _gfxdevice*dev, gfxline_t*line, gfximage_t*img, gfxmatrix_t*matrix, gfxcxform_t*cxform)
 544 {
 545     internal_t*i = (internal_t*)dev->internal;
 546     msg("<trace> record: %08x FILLBITMAP\n", dev);
 547     writer_writeU8(&i->w, OP_FILLBITMAP);
 548     dumpImage(&i->w, &i->state, img);
 549     dumpMatrix(&i->w, &i->state, matrix);
 550     dumpLine(&i->w, &i->state, line);
 551     dumpCXForm(&i->w, &i->state, cxform);
 552 }
 553
 554 static void record_fillgradient(struct _gfxdevice*dev, gfxline_t*line, gfxgradient_t*gradient, gfxgradienttype_t type, gfxmatrix_t*matrix)
 555 {
 556     internal_t*i = (internal_t*)dev->internal;
 557     msg("<trace> record: %08x FILLGRADIENT %08x\n", dev, gradient);
 558     writer_writeU8(&i->w, OP_FILLGRADIENT);
 559     writer_writeU8(&i->w, type);
 560     dumpGradient(&i->w, &i->state, gradient);
 561     dumpMatrix(&i->w, &i->state, matrix);
 562     dumpLine(&i->w, &i->state, line);
 563 }
 564
 565 static void record_addfont(struct _gfxdevice*dev, gfxfont_t*font)
 566 {
 567     internal_t*i = (internal_t*)dev->internal;
 568     msg("<trace> record: %08x ADDFONT %s\n", dev, font->id);
 569     if(font && !gfxfontlist_hasfont(i->fontlist, font)) {
 570         writer_writeU8(&i->w, OP_ADDFONT);
 571         dumpFont(&i->w, &i->state, font);
 572         i->fontlist = gfxfontlist_addfont(i->fontlist, font);
 573     }
 574 }
 575
 576 static void record_drawchar(struct _gfxdevice*dev, gfxfont_t*font, int glyphnr, gfxcolor_t*color, gfxmatrix_t*matrix)
 577 {
 578     internal_t*i = (internal_t*)dev->internal;
 579     if(font && !gfxfontlist_hasfont(i->fontlist, font)) {
 580         record_addfont(dev, font);
 581     }
 582
 583     msg("<trace> record: %08x DRAWCHAR %d\n", glyphnr, dev);
 584     const char*font_id = (font&&font->id)?font->id:"*NULL*";
 585
 586     gfxmatrix_t*l = &i->state.last_matrix[OP_DRAWCHAR];
 587
 588     U8 flags = 0;
 589     if(!font)
 590         flags |= FLAG_ZERO_FONT;
 591
 592     char same_font = i->state.last_string[OP_DRAWCHAR] && !strcmp(i->state.last_string[OP_DRAWCHAR], font_id);
 593     char same_matrix = (l->m00 == matrix->m00) && (l->m01 == matrix->m01) && (l->m10 == matrix->m10) && (l->m11 == matrix->m11);
 594     char same_color = !memcmp(color, &i->state.last_color[OP_DRAWCHAR], sizeof(gfxcolor_t));
 595
 596     /* FIXME
 597     if(same_font && same_matrix && same_color)
 598         flags |= FLAG_SAME_AS_LAST;
 599     */
 600
 601     writer_writeU8(&i->w, OP_DRAWCHAR|flags);
 602     writer_writeU32(&i->w, glyphnr);
 603 #ifdef STATS
 604     i->state.size_chars += 5;
 605 #endif
 606
 607     if(!(flags&FLAG_SAME_AS_LAST)) {
 608         if(!(flags&FLAG_ZERO_FONT))
 609             writer_writeString(&i->w, font_id);
 610         dumpColor(&i->w, &i->state, color);
 611         dumpMatrix(&i->w, &i->state, matrix);
 612         i->state.last_string[OP_DRAWCHAR] = strdup(font_id);
 613         i->state.last_color[OP_DRAWCHAR] = *color;
 614         i->state.last_matrix[OP_DRAWCHAR] = *matrix;
 615     } else {
 616         dumpXY(&i->w, &i->state, matrix);
 617     }
 618 }
 619
 620 static void record_startpage(struct _gfxdevice*dev, int width, int height)
 621 {
 622     internal_t*i = (internal_t*)dev->internal;
 623     msg("<trace> record: %08x STARTPAGE\n", dev);
 624     writer_writeU8(&i->w, OP_STARTPAGE);
 625     writer_writeU16(&i->w, width);
 626     writer_writeU16(&i->w, height);
 627 }
 628
 629 static void record_endpage(struct _gfxdevice*dev)
 630 {
 631     internal_t*i = (internal_t*)dev->internal;
 632     msg("<trace> record: %08x ENDPAGE\n", dev);
 633     writer_writeU8(&i->w, OP_ENDPAGE);
 634 }
 635
 636 static void record_drawlink(struct _gfxdevice*dev, gfxline_t*line, const char*action)
 637 {
 638     internal_t*i = (internal_t*)dev->internal;
 639     msg("<trace> record: %08x DRAWLINK\n", dev);
 640     writer_writeU8(&i->w, OP_DRAWLINK);
 641     dumpLine(&i->w, &i->state, line);
 642     writer_writeString(&i->w, action);
 643 }
 644
 645 /* ------------------------------- replaying --------------------------------- */
 646
 647 static void replay(struct _gfxdevice*dev, gfxdevice_t*out, reader_t*r, gfxfontlist_t**fontlist)
 648 {
 649     internal_t*i = 0;
 650     if(dev) {
 651         i = (internal_t*)dev->internal;
 652     }
 653     gfxfontlist_t*_fontlist=0;
 654     if(!fontlist) {
 655         fontlist = &_fontlist;
 656     }
 657
 658     state_t state;
 659     memset(&state, 0, sizeof(state));
 660
 661     while(1) {
 662         unsigned char op;
 663         if(r->read(r, &op, 1)!=1)
 664             break;
 665         unsigned char flags = op&0xf0;
 666         op&=0x0f;
 667
 668         switch(op) {
 669             case OP_END:
 670                 goto finish;
 671             case OP_SETPARAM: {
 672                 msg("<trace> replay: SETPARAM");
 673                 char*key;
 674                 char*value;
 675                 key = reader_readString(r);
 676                 value = reader_readString(r);
 677                 out->setparameter(out, key, value);
 678                 free(key);
 679                 free(value);
 680                 break;
 681             }
 682             case OP_STARTPAGE: {
 683                 msg("<trace> replay: STARTPAGE");
 684                 U16 width = reader_readU16(r);
 685                 U16 height = reader_readU16(r);
 686                 out->startpage(out, width, height);
 687                 break;
 688             }
 689             case OP_ENDPAGE: {
 690                 msg("<trace> replay: ENDPAGE");
 691                 out->endpage(out);
 692                 break;
 693             }
 694             case OP_FINISH: {
 695                 msg("<trace> replay: FINISH");
 696                 break;
 697             }
 698             case OP_STROKE: {
 699                 msg("<trace> replay: STROKE");
 700                 double width = reader_readDouble(r);
 701                 double miterlimit = reader_readDouble(r);
 702                 gfxcolor_t color = readColor(r, &state);
 703                 gfx_capType captype;
 704                 int v = reader_readU8(r);
 705                 switch (v) {
 706                     case 0: captype = gfx_capButt; break;
 707                     case 1: captype = gfx_capRound; break;
 708                     case 2: captype = gfx_capSquare; break;
 709                 }
 710                 gfx_joinType jointtype;
 711                 v = reader_readU8(r);
 712                 switch (v) {
 713                     case 0: jointtype = gfx_joinMiter; break;
 714                     case 1: jointtype = gfx_joinRound; break;
 715                     case 2: jointtype = gfx_joinBevel; break;
 716                 }
 717                 gfxline_t* line = readLine(r, &state);
 718                 out->stroke(out, line, width, &color, captype, jointtype,miterlimit);
 719                 gfxline_free(line);
 720                 break;
 721             }
 722             case OP_STARTCLIP: {
 723                 msg("<trace> replay: STARTCLIP");
 724                 gfxline_t* line = readLine(r, &state);
 725                 out->startclip(out, line);
 726                 gfxline_free(line);
 727                 break;
 728             }
 729             case OP_ENDCLIP: {
 730                 msg("<trace> replay: ENDCLIP");
 731                 out->endclip(out);
 732                 break;
 733             }
 734             case OP_FILL: {
 735                 msg("<trace> replay: FILL");
 736                 gfxcolor_t color = readColor(r, &state);
 737                 gfxline_t* line = readLine(r, &state);
 738                 out->fill(out, line, &color);
 739                 gfxline_free(line);
 740                 break;
 741             }
 742             case OP_FILLBITMAP: {
 743                 msg("<trace> replay: FILLBITMAP");
 744                 gfximage_t img = readImage(r, &state);
 745                 gfxmatrix_t matrix = readMatrix(r, &state);
 746                 gfxline_t* line = readLine(r, &state);
 747                 gfxcxform_t* cxform = readCXForm(r, &state);
 748                 out->fillbitmap(out, line, &img, &matrix, cxform);
 749                 gfxline_free(line);
 750                 if(cxform)
 751                     free(cxform);
 752                 free(img.data);img.data=0;
 753                 break;
 754             }
 755             case OP_FILLGRADIENT: {
 756                 msg("<trace> replay: FILLGRADIENT");
 757                 gfxgradienttype_t type;
 758                 int v = reader_readU8(r);
 759                 switch (v) {
 760                     case 0:
 761                       type = gfxgradient_radial; break;
 762                     case 1:
 763                       type = gfxgradient_linear; break;
 764                 }
 765                 gfxgradient_t*gradient = readGradient(r, &state);
 766                 gfxmatrix_t matrix = readMatrix(r, &state);
 767                 gfxline_t* line = readLine(r, &state);
 768                 out->fillgradient(out, line, gradient, type, &matrix);
 769                 break;
 770             }
 771             case OP_DRAWLINK: {
 772                 msg("<trace> replay: DRAWLINK");
 773                 gfxline_t* line = readLine(r, &state);
 774                 char* s = reader_readString(r);
 775                 out->drawlink(out,line,s);
 776                 gfxline_free(line);
 777                 free(s);
 778                 break;
 779             }
 780             case OP_ADDFONT: {
 781                 msg("<trace> replay: ADDFONT out=%08x(%s)", out, out->name);
 782                 gfxfont_t*font = readFont(r, &state);
 783                 if(!gfxfontlist_hasfont(*fontlist, font)) {
 784                     *fontlist = gfxfontlist_addfont(*fontlist, font);
 785                     out->addfont(out, font);
 786                 } else {
 787                     gfxfont_free(font);
 788                 }
 789                 break;
 790             }
 791             case OP_DRAWCHAR: {
 792                 U32 glyph = reader_readU32(r);
 793                 gfxmatrix_t m = {1,0,0, 0,1,0};
 794                 char* id = 0;
 795                 if(!(flags&FLAG_ZERO_FONT))
 796                     id = read_string(r, &state, op, flags);
 797                 gfxcolor_t color = read_color(r, &state, op, flags);
 798                 gfxmatrix_t matrix = read_matrix(r, &state, op, flags);
 799
 800                 gfxfont_t*font = id?gfxfontlist_findfont(*fontlist, id):0;
 801                 if(i && !font) {
 802                     font = gfxfontlist_findfont(i->fontlist, id);
 803                 }
 804                 msg("<trace> replay: DRAWCHAR font=%s glyph=%d", id, glyph);
 805                 out->drawchar(out, font, glyph, &color, &matrix);
 806                 if(id)
 807                     free(id);
 808                 break;
 809             }
 810         }
 811     }
 812 finish:
 813     r->dealloc(r);
 814     if(_fontlist)
 815         gfxfontlist_free(_fontlist, 0);
 816 }
 817 void gfxresult_record_replay(gfxresult_t*result, gfxdevice_t*device, gfxfontlist_t**fontlist)
 818 {
 819     internal_result_t*i = (internal_result_t*)result->internal;
 820
 821     reader_t r;
 822     if(i->use_tempfile) {
 823         reader_init_filereader2(&r, i->filename);
 824     } else {
 825         reader_init_memreader(&r, i->data, i->length);
 826     }
 827
 828     replay(0, device, &r, fontlist);
 829 }
 830
 831 static void record_result_write(gfxresult_t*r, int filedesc)
 832 {
 833     internal_result_t*i = (internal_result_t*)r->internal;
 834     if(i->data) {
 835         write(filedesc, i->data, i->length);
 836     }
 837 }
 838 static int record_result_save(gfxresult_t*r, const char*filename)
 839 {
 840     internal_result_t*i = (internal_result_t*)r->internal;
 841     if(i->use_tempfile) {
 842         move_file(i->filename, filename);
 843     } else {
 844         FILE*fi = fopen(filename, "wb");
 845         if(!fi) {
 846             fprintf(stderr, "Couldn't open file %s for writing\n", filename);
 847             return -1;
 848         }
 849         fwrite(i->data, i->length, 1, fi);
 850         fclose(fi);
 851     }
 852     return 0;
 853 }
 854 static void*record_result_get(gfxresult_t*r, const char*name)
 855 {
 856     internal_result_t*i = (internal_result_t*)r->internal;
 857     if(!strcmp(name, "data")) {
 858         return i->data;
 859     } else if(!strcmp(name, "length")) {
 860         return &i->length;
 861     }
 862     return 0;
 863 }
 864 static void record_result_destroy(gfxresult_t*r)
 865 {
 866     internal_result_t*i = (internal_result_t*)r->internal;
 867     if(i->data) {
 868         free(i->data);i->data = 0;
 869     }
 870     if(i->filename) {
 871         unlink(i->filename);
 872         free(i->filename);
 873     }
 874     free(r->internal);r->internal = 0;
 875     free(r);
 876 }
 877
 878 static unsigned char printable(unsigned char a)
 879 {
 880     if(a<32 || a==127) return '.';
 881     else return a;
 882 }
 883
 884 static void hexdumpMem(unsigned char*data, int len)
 885 {
 886     int t;
 887     char ascii[32];
 888     for(t=0;t<len;t++) {
 889         printf("%02x ", data[t]);
 890         ascii[t&15] = printable(data[t]);
 891         if((t && ((t&15)==15)) || (t==len-1))
 892         {
 893             int s,p=((t)&15)+1;
 894             ascii[p] = 0;
 895             for(s=p-1;s<16;s++) {
 896                 printf("   ");
 897             }
 898             printf(" %s\n", ascii);
 899         }
 900     }
 901 }
 902
 903 void gfxdevice_record_flush(gfxdevice_t*dev, gfxdevice_t*out, gfxfontlist_t**fontlist)
 904 {
 905     internal_t*i = (internal_t*)dev->internal;
 906     if(out) {
 907         if(!i->use_tempfile) {
 908             int len=0;
 909             void*data = writer_growmemwrite_memptr(&i->w, &len);
 910             reader_t r;
 911             reader_init_memreader(&r, data, len);
 912             replay(dev, out, &r, fontlist);
 913             writer_growmemwrite_reset(&i->w);
 914         } else {
 915             msg("<fatal> Flushing not supported for file based record device");
 916             exit(1);
 917         }
 918     }
 919 }
 920
 921 static gfxresult_t* record_finish(struct _gfxdevice*dev)
 922 {
 923     internal_t*i = (internal_t*)dev->internal;
 924     msg("<trace> record: %08x END", dev);
 925
 926     if(i->cliplevel) {
 927         msg("<error> Warning: unclosed cliplevels");
 928     }
 929
 930 #ifdef STATS
 931     int total = i->w.pos;
 932     if(total && i->use_tempfile) {
 933         state_t*s = &i->state;
 934         msg("<notice> record device finished. stats:");
 935         msg("<notice> %4.1f%% matrices (%d bytes)", s->size_matrices*100.0/total, s->size_matrices);
 936         msg("<notice> %4.1f%% positions (%d bytes)", s->size_positions*100.0/total, s->size_positions);
 937         msg("<notice> %4.1f%% colors (%d bytes)", s->size_colors*100.0/total, s->size_colors);
 938         msg("<notice> %4.1f%% lines (%d bytes)", s->size_lines*100.0/total, s->size_lines);
 939         msg("<notice> %4.1f%% fonts (%d bytes)", s->size_fonts*100.0/total, s->size_fonts);
 940         msg("<notice> %4.1f%% images (%d bytes)", s->size_images*100.0/total, s->size_images);
 941         msg("<notice> %4.1f%% characters (%d bytes)", s->size_chars*100.0/total, s->size_chars);
 942         msg("<notice> total: %d bytes", total);
 943     }
 944 #endif
 945
 946     writer_writeU8(&i->w, OP_END);
 947
 948     gfxfontlist_free(i->fontlist, 0);
 949
 950     internal_result_t*ir = (internal_result_t*)rfx_calloc(sizeof(gfxresult_t));
 951
 952     ir->use_tempfile = i->use_tempfile;
 953     if(i->use_tempfile) {
 954         ir->filename = i->filename;
 955     } else {
 956         ir->data = writer_growmemwrite_getmem(&i->w);
 957         ir->length = i->w.pos;
 958     }
 959     i->w.finish(&i->w);
 960
 961     gfxresult_t*result= (gfxresult_t*)rfx_calloc(sizeof(gfxresult_t));
 962     result->save = record_result_save;
 963     result->get = record_result_get;
 964     result->destroy = record_result_destroy;
 965     result->internal = ir;
 966
 967     free(dev->internal);memset(dev, 0, sizeof(gfxdevice_t));
 968
 969     return result;
 970 }
 971
 972 void gfxdevice_record_init(gfxdevice_t*dev, char use_tempfile)
 973 {
 974     internal_t*i = (internal_t*)rfx_calloc(sizeof(internal_t));
 975     memset(dev, 0, sizeof(gfxdevice_t));
 976
 977     dev->name = "record";
 978
 979     dev->internal = i;
 980
 981     i->use_tempfile = use_tempfile;
 982     if(!use_tempfile) {
 983         writer_init_growingmemwriter(&i->w, 1048576);
 984     } else {
 985         char buffer[128];
 986         i->filename = strdup(mktempname(buffer, "gfx"));
 987         writer_init_filewriter2(&i->w, i->filename);
 988     }
 989     i->fontlist = gfxfontlist_create();
 990     i->cliplevel = 0;
 991
 992     dev->setparameter = record_setparameter;
 993     dev->startpage = record_startpage;
 994     dev->startclip = record_startclip;
 995     dev->endclip = record_endclip;
 996     dev->stroke = record_stroke;
 997     dev->fill = record_fill;
 998     dev->fillbitmap = record_fillbitmap;
 999     dev->fillgradient = record_fillgradient;
1000     dev->addfont = record_addfont;
1001     dev->drawchar = record_drawchar;
1002     dev->drawlink = record_drawlink;
1003     dev->endpage = record_endpage;
1004     dev->finish = record_finish;
1005 }
1006