fz_display_list *
fz_new_display_list_from_page(fz_context *ctx, fz_page *page)
{
fz_display_list *list;
fz_device *dev;
list = fz_new_display_list(ctx);
fz_try(ctx)
{
dev = fz_new_list_device(ctx, list);
fz_run_page(ctx, page, dev, &fz_identity, NULL);
}
fz_always(ctx)
{
fz_drop_device(ctx, dev);
}
fz_catch(ctx)
{
fz_drop_display_list(ctx, list);
fz_rethrow(ctx);
}
return list;
}
fz_display_list *
fz_new_display_list_from_annot(fz_context *ctx, fz_annot *annot)
{
fz_display_list *list;
fz_rect bounds;
fz_device *dev;
list = fz_new_display_list(ctx, fz_bound_annot(ctx, annot, &bounds));
fz_try(ctx)
{
dev = fz_new_list_device(ctx, list);
fz_run_annot(ctx, annot, dev, &fz_identity, NULL);
fz_close_device(ctx, dev);
}
fz_always(ctx)
{
fz_drop_device(ctx, dev);
}
fz_catch(ctx)
{
fz_drop_display_list(ctx, list);
fz_rethrow(ctx);
}
return list;
}
void clear() {
if (m_dev) {
fz_drop_device(m_ctx, m_dev);
m_dev = 0;
}
if (m_list) {
fz_drop_display_list(m_ctx, m_list);
m_list = 0;
}
}
fz_image *
fz_new_image_from_svg(fz_context *ctx, fz_buffer *buf)
{
fz_display_list *list;
fz_image *image;
float w, h;
list = fz_new_display_list_from_svg(ctx, buf, &w, &h);
fz_try(ctx)
image = fz_new_image_from_display_list(ctx, w, h, list);
fz_always(ctx)
fz_drop_display_list(ctx, list);
fz_catch(ctx)
fz_rethrow(ctx);
return image;
}
void Cache::Empty(fz_context *mu_ctx)
{
if (this != nullptr) {
cache_entry_t *curr_entry = this->head;
while (curr_entry != NULL)
{
cache_entry_t *old_entry = curr_entry;
curr_entry = old_entry->next;
fz_drop_display_list(mu_ctx, old_entry->dlist);
delete old_entry;
}
this->size = 0;
this->head = NULL;
this->tail = NULL;
}
}
void Cache::AddEntry(int value, fz_display_list *dlist, fz_context *mu_ctx)
{
std::lock_guard<std::mutex> lock(cache_lock);
/* If full, then delete the tail */
if (size >= MAX_DISPLAY_CACHE_SIZE)
{
cache_entry_t *curr_entry = this->tail;
cache_entry_t *prev_entry = curr_entry->prev;
if (prev_entry != NULL)
prev_entry->next = NULL;
else
head = NULL;
tail = prev_entry;
/* Decrement the caches rc of this list */
fz_drop_display_list(mu_ctx, curr_entry->dlist);
delete curr_entry;
size--;
}
/* Make a new entry and stick at head */
cache_entry_t *new_entry = new cache_entry_t;
new_entry->dlist = dlist;
new_entry->index = value;
new_entry->prev = NULL;
if (head == NULL)
{
new_entry->next = NULL;
head = new_entry;
tail = new_entry;
}
else
{
new_entry->next = head;
head->prev = new_entry;
head = new_entry;
}
size++;
/* We are going to use this item now */
fz_keep_display_list(mu_ctx, new_entry->dlist);
}
void
fz_drop_font(fz_context *ctx, fz_font *font)
{
int fterr;
int i, drop;
fz_lock(ctx, FZ_LOCK_ALLOC);
drop = (font && --font->refs == 0);
fz_unlock(ctx, FZ_LOCK_ALLOC);
if (!drop)
return;
free_resources(ctx, font);
if (font->t3lists)
{
for (i = 0; i < 256; i++)
{
if (font->t3lists[i])
fz_drop_display_list(ctx, font->t3lists[i]);
}
fz_free(ctx, font->t3procs);
fz_free(ctx, font->t3lists);
fz_free(ctx, font->t3widths);
fz_free(ctx, font->t3flags);
}
if (font->ft_face)
{
fz_lock(ctx, FZ_LOCK_FREETYPE);
fterr = FT_Done_Face((FT_Face)font->ft_face);
fz_unlock(ctx, FZ_LOCK_FREETYPE);
if (fterr)
fz_warn(ctx, "freetype finalizing face: %s", ft_error_string(fterr));
fz_drop_freetype(ctx);
}
fz_free(ctx, font->ft_file);
fz_free(ctx, font->ft_data);
fz_free(ctx, font->bbox_table);
fz_free(ctx, font->width_table);
fz_free(ctx, font);
}
static void drawpage(fz_context *ctx, fz_document *doc, int pagenum)
{
fz_page *page;
fz_display_list *list = NULL;
fz_device *dev = NULL;
int start;
fz_cookie cookie = { 0 };
int needshot = 0;
fz_var(list);
fz_var(dev);
if (showtime)
{
start = gettime();
}
fz_try(ctx)
{
page = fz_load_page(doc, pagenum - 1);
}
fz_catch(ctx)
{
fz_rethrow_message(ctx, "cannot load page %d in file '%s'", pagenum, filename);
}
if (mujstest_file)
{
pdf_document *inter = pdf_specifics(doc);
pdf_widget *widget = NULL;
if (inter)
widget = pdf_first_widget(inter, (pdf_page *)page);
if (widget)
{
fprintf(mujstest_file, "GOTO %d\n", pagenum);
needshot = 1;
}
for (;widget; widget = pdf_next_widget(widget))
{
fz_rect rect;
int w, h, len;
int type = pdf_widget_get_type(widget);
pdf_bound_widget(widget, &rect);
w = (rect.x1 - rect.x0);
h = (rect.y1 - rect.y0);
++mujstest_count;
switch (type)
{
default:
fprintf(mujstest_file, "%% UNKNOWN %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
break;
case PDF_WIDGET_TYPE_PUSHBUTTON:
fprintf(mujstest_file, "%% PUSHBUTTON %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
break;
case PDF_WIDGET_TYPE_CHECKBOX:
fprintf(mujstest_file, "%% CHECKBOX %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
break;
case PDF_WIDGET_TYPE_RADIOBUTTON:
fprintf(mujstest_file, "%% RADIOBUTTON %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
break;
case PDF_WIDGET_TYPE_TEXT:
{
int maxlen = pdf_text_widget_max_len(inter, widget);
int texttype = pdf_text_widget_content_type(inter, widget);
/* If height is low, assume a single row, and base
* the width off that. */
if (h < 10)
{
w = (w+h-1) / (h ? h : 1);
h = 1;
}
/* Otherwise, if width is low, work off height */
else if (w < 10)
{
h = (w+h-1) / (w ? w : 1);
w = 1;
}
else
{
w = (w+9)/10;
h = (h+9)/10;
}
len = w*h;
if (len < 2)
len = 2;
if (len > maxlen)
len = maxlen;
fprintf(mujstest_file, "%% TEXT %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
switch (texttype)
{
default:
case PDF_WIDGET_CONTENT_UNRESTRAINED:
fprintf(mujstest_file, "TEXT %d ", mujstest_count);
escape_string(mujstest_file, len-3, lorem);
fprintf(mujstest_file, "\n");
break;
case PDF_WIDGET_CONTENT_NUMBER:
fprintf(mujstest_file, "TEXT %d\n", mujstest_count);
break;
case PDF_WIDGET_CONTENT_SPECIAL:
#ifdef __MINGW32__
fprintf(mujstest_file, "TEXT %I64d\n", 46702919800LL + mujstest_count);
#else
fprintf(mujstest_file, "TEXT %lld\n", 46702919800LL + mujstest_count);
#endif
break;
case PDF_WIDGET_CONTENT_DATE:
fprintf(mujstest_file, "TEXT Jun %d 1979\n", 1 + ((13 + mujstest_count) % 30));
break;
case PDF_WIDGET_CONTENT_TIME:
++mujstest_count;
fprintf(mujstest_file, "TEXT %02d:%02d\n", ((mujstest_count/60) % 24), mujstest_count % 60);
break;
}
break;
}
case PDF_WIDGET_TYPE_LISTBOX:
fprintf(mujstest_file, "%% LISTBOX %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
break;
case PDF_WIDGET_TYPE_COMBOBOX:
fprintf(mujstest_file, "%% COMBOBOX %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
break;
}
fprintf(mujstest_file, "CLICK %0.2f %0.2f\n", (rect.x0+rect.x1)/2, (rect.y0+rect.y1)/2);
}
}
if (uselist)
{
fz_try(ctx)
{
list = fz_new_display_list(ctx);
dev = fz_new_list_device(ctx, list);
fz_run_page(doc, page, dev, &fz_identity, &cookie);
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
}
fz_catch(ctx)
{
fz_drop_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow_message(ctx, "cannot draw page %d in file '%s'", pagenum, filename);
}
}
if (showxml)
{
fz_try(ctx)
{
dev = fz_new_trace_device(ctx);
if (list)
fz_run_display_list(list, dev, &fz_identity, &fz_infinite_rect, &cookie);
else
fz_run_page(doc, page, dev, &fz_identity, &cookie);
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
}
fz_catch(ctx)
{
fz_drop_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow(ctx);
}
}
if (showtext)
{
fz_text_page *text = NULL;
fz_var(text);
fz_try(ctx)
{
text = fz_new_text_page(ctx);
dev = fz_new_text_device(ctx, sheet, text);
if (showtext == TEXT_HTML)
fz_disable_device_hints(dev, FZ_IGNORE_IMAGE);
if (list)
fz_run_display_list(list, dev, &fz_identity, &fz_infinite_rect, &cookie);
else
fz_run_page(doc, page, dev, &fz_identity, &cookie);
fz_free_device(dev);
dev = NULL;
if (showtext == TEXT_XML)
{
fz_print_text_page_xml(ctx, out, text);
}
else if (showtext == TEXT_HTML)
{
fz_analyze_text(ctx, sheet, text);
fz_print_text_page_html(ctx, out, text);
}
else if (showtext == TEXT_PLAIN)
{
fz_print_text_page(ctx, out, text);
fz_printf(out, "\f\n");
}
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
fz_free_text_page(ctx, text);
}
fz_catch(ctx)
{
fz_drop_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow(ctx);
}
}
if (showmd5 || showtime)
printf("page %s %d", filename, pagenum);
if (pdfout)
{
fz_matrix ctm;
fz_rect bounds, tbounds;
pdf_page *newpage;
fz_bound_page(doc, page, &bounds);
fz_rotate(&ctm, rotation);
tbounds = bounds;
fz_transform_rect(&tbounds, &ctm);
newpage = pdf_create_page(pdfout, bounds, 72, 0);
fz_try(ctx)
{
dev = pdf_page_write(pdfout, newpage);
if (list)
fz_run_display_list(list, dev, &ctm, &tbounds, &cookie);
else
fz_run_page(doc, page, dev, &ctm, &cookie);
fz_free_device(dev);
dev = NULL;
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
}
fz_catch(ctx)
{
fz_drop_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow(ctx);
}
pdf_insert_page(pdfout, newpage, INT_MAX);
pdf_free_page(pdfout, newpage);
}
if (output && output_format == OUT_SVG)
{
float zoom;
fz_matrix ctm;
fz_rect bounds, tbounds;
char buf[512];
FILE *file;
fz_output *out;
if (!strcmp(output, "-"))
file = stdout;
else
{
sprintf(buf, output, pagenum);
file = fopen(buf, "wb");
if (file == NULL)
fz_throw(ctx, FZ_ERROR_GENERIC, "cannot open file '%s': %s", buf, strerror(errno));
}
out = fz_new_output_with_file(ctx, file);
fz_bound_page(doc, page, &bounds);
zoom = resolution / 72;
fz_pre_rotate(fz_scale(&ctm, zoom, zoom), rotation);
tbounds = bounds;
fz_transform_rect(&tbounds, &ctm);
fz_try(ctx)
{
dev = fz_new_svg_device(ctx, out, tbounds.x1-tbounds.x0, tbounds.y1-tbounds.y0);
if (list)
fz_run_display_list(list, dev, &ctm, &tbounds, &cookie);
else
fz_run_page(doc, page, dev, &ctm, &cookie);
fz_free_device(dev);
dev = NULL;
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
fz_close_output(out);
if (file != stdout)
fclose(file);
}
fz_catch(ctx)
{
fz_drop_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow(ctx);
}
}
static void drawpage(fz_context *ctx, fz_document *doc, int pagenum)
{
fz_page *page;
fz_display_list *list = NULL;
fz_device *dev = NULL;
int start;
fz_cookie cookie = { 0 };
fz_var(list);
fz_var(dev);
if (showtime)
{
start = gettime();
}
fz_try(ctx)
{
page = fz_load_page(doc, pagenum - 1);
}
fz_catch(ctx)
{
fz_rethrow_message(ctx, "cannot load page %d in file '%s'", pagenum, filename);
}
if (uselist)
{
fz_try(ctx)
{
list = fz_new_display_list(ctx);
dev = fz_new_list_device(ctx, list);
fz_run_page(doc, page, dev, &fz_identity, &cookie);
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
}
fz_catch(ctx)
{
fz_drop_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow_message(ctx, "cannot draw page %d in file '%s'", pagenum, filename);
}
}
if (showxml)
{
fz_try(ctx)
{
dev = fz_new_trace_device(ctx);
if (list)
fz_run_display_list(list, dev, &fz_identity, &fz_infinite_rect, &cookie);
else
fz_run_page(doc, page, dev, &fz_identity, &cookie);
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
}
fz_catch(ctx)
{
fz_drop_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow(ctx);
}
}
if (showtext)
{
fz_text_page *text = NULL;
fz_var(text);
fz_try(ctx)
{
text = fz_new_text_page(ctx);
dev = fz_new_text_device(ctx, sheet, text);
if (showtext == TEXT_HTML)
fz_disable_device_hints(dev, FZ_IGNORE_IMAGE);
if (list)
fz_run_display_list(list, dev, &fz_identity, &fz_infinite_rect, &cookie);
else
fz_run_page(doc, page, dev, &fz_identity, &cookie);
fz_free_device(dev);
dev = NULL;
if (showtext == TEXT_XML)
{
fz_print_text_page_xml(ctx, out, text);
}
else if (showtext == TEXT_HTML)
{
fz_analyze_text(ctx, sheet, text);
fz_print_text_page_html(ctx, out, text);
}
else if (showtext == TEXT_PLAIN)
{
fz_print_text_page(ctx, out, text);
fz_printf(out, "\f\n");
}
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
fz_free_text_page(ctx, text);
}
fz_catch(ctx)
{
fz_drop_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow(ctx);
}
}
if (showmd5 || showtime || showfeatures)
printf("page %s %d", filename, pagenum);
if (showfeatures)
{
int iscolor;
dev = fz_new_test_device(ctx, &iscolor, 0.02f);
fz_try(ctx)
{
if (list)
fz_run_display_list(list, dev, &fz_identity, &fz_infinite_rect, NULL);
else
fz_run_page(doc, page, dev, &fz_identity, &cookie);
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
}
fz_catch(ctx)
{
fz_rethrow(ctx);
}
printf(" %s", iscolor ? "color" : "grayscale");
}
if (pdfout)
{
fz_matrix ctm;
fz_rect bounds, tbounds;
pdf_page *newpage;
fz_bound_page(doc, page, &bounds);
fz_rotate(&ctm, rotation);
tbounds = bounds;
fz_transform_rect(&tbounds, &ctm);
newpage = pdf_create_page(pdfout, bounds, 72, 0);
fz_try(ctx)
{
dev = pdf_page_write(pdfout, newpage);
if (list)
fz_run_display_list(list, dev, &ctm, &tbounds, &cookie);
else
fz_run_page(doc, page, dev, &ctm, &cookie);
fz_free_device(dev);
dev = NULL;
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
}
fz_catch(ctx)
{
fz_drop_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow(ctx);
}
pdf_insert_page(pdfout, newpage, INT_MAX);
pdf_free_page(pdfout, newpage);
}
if (output && output_format == OUT_SVG)
{
float zoom;
fz_matrix ctm;
fz_rect bounds, tbounds;
char buf[512];
FILE *file;
fz_output *out;
if (!strcmp(output, "-"))
file = stdout;
else
{
sprintf(buf, output, pagenum);
file = fopen(buf, "wb");
if (file == NULL)
fz_throw(ctx, FZ_ERROR_GENERIC, "cannot open file '%s': %s", buf, strerror(errno));
}
out = fz_new_output_with_file(ctx, file);
fz_bound_page(doc, page, &bounds);
zoom = resolution / 72;
fz_pre_rotate(fz_scale(&ctm, zoom, zoom), rotation);
tbounds = bounds;
fz_transform_rect(&tbounds, &ctm);
fz_try(ctx)
{
dev = fz_new_svg_device(ctx, out, tbounds.x1-tbounds.x0, tbounds.y1-tbounds.y0);
if (list)
fz_run_display_list(list, dev, &ctm, &tbounds, &cookie);
else
fz_run_page(doc, page, dev, &ctm, &cookie);
fz_free_device(dev);
dev = NULL;
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
fz_close_output(out);
if (file != stdout)
fclose(file);
}
fz_catch(ctx)
{
fz_drop_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow(ctx);
}
}
int main(int argc, char **argv)
{
char *filename = argc >= 2 ? argv[1] : "";
pthread_t *thread = NULL;
fz_locks_context locks;
pthread_mutex_t mutex[FZ_LOCK_MAX];
fz_context *ctx;
fz_document *doc;
int threads;
int i;
// Initialize FZ_LOCK_MAX number of non-recursive mutexes.
for (i = 0; i < FZ_LOCK_MAX; i++)
{
if (pthread_mutex_init(&mutex[i], NULL) != 0)
fail("pthread_mutex_init()");
}
// Initialize the locking structure with function pointers to
// the locking functions and to the user data. In this case
// the user data is a pointer to the array of mutexes so the
// locking functions can find the relevant lock to change when
// they are called. This way we avoid global variables.
locks.user = mutex;
locks.lock = lock_mutex;
locks.unlock = unlock_mutex;
// This is the main threads context function, so supply the
// locking structure. This context will be used to parse all
// the pages from the document.
ctx = fz_new_context(NULL, &locks, FZ_STORE_UNLIMITED);
// Register default file types.
fz_register_document_handlers(ctx);
// Open the PDF, XPS or CBZ document. Note, this binds doc to ctx.
// You must only ever use doc with ctx - never a clone of it!
doc = fz_open_document(ctx, filename);
// Retrieve the number of pages, which translates to the
// number of threads used for rendering pages.
threads = fz_count_pages(ctx, doc);
fprintf(stderr, "spawning %d threads, one per page...\n", threads);
thread = malloc(threads * sizeof (pthread_t));
for (i = 0; i < threads; i++)
{
fz_page *page;
fz_rect bbox;
fz_irect rbox;
fz_display_list *list;
fz_device *dev;
fz_pixmap *pix;
struct data *data;
// Load the relevant page for each thread. Note, that this
// cannot be done on the worker threads, as each use of doc
// uses ctx, and only one thread can be using ctx at a time.
page = fz_load_page(ctx, doc, i);
// Compute the bounding box for each page.
fz_bound_page(ctx, page, &bbox);
// Create a display list that will hold the drawing
// commands for the page. Once we have the display list
// this can safely be used on any other thread as it is
// not bound to a given context.
list = fz_new_display_list(ctx, &bbox);
// Run the loaded page through a display list device
// to populate the page's display list.
dev = fz_new_list_device(ctx, list);
fz_run_page(ctx, page, dev, &fz_identity, NULL);
fz_close_device(ctx, dev);
fz_drop_device(ctx, dev);
// The page is no longer needed, all drawing commands
// are now in the display list.
fz_drop_page(ctx, page);
// Create a white pixmap using the correct dimensions.
pix = fz_new_pixmap_with_bbox(ctx, fz_device_rgb(ctx), fz_round_rect(&rbox, &bbox), 0);
fz_clear_pixmap_with_value(ctx, pix, 0xff);
// Populate the data structure to be sent to the
// rendering thread for this page.
data = malloc(sizeof (struct data));
data->pagenumber = i + 1;
data->ctx = ctx;
data->list = list;
data->bbox = bbox;
data->pix = pix;
// Create the thread and pass it the data structure.
if (pthread_create(&thread[i], NULL, renderer, data) != 0)
fail("pthread_create()");
}
// Now each thread is rendering pages, so wait for each thread
// to complete its rendering.
fprintf(stderr, "joining %d threads...\n", threads);
for (i = threads - 1; i >= 0; i--)
{
char filename[42];
struct data *data;
if (pthread_join(thread[i], (void **) &data) != 0)
fail("pthread_join");
sprintf(filename, "out%04d.png", i);
fprintf(stderr, "\tSaving %s...\n", filename);
// Write the rendered image to a PNG file
fz_save_pixmap_as_png(ctx, data->pix, filename);
// Free the thread's pixmap and display list since
// they were allocated by the main thread above.
fz_drop_pixmap(ctx, data->pix);
fz_drop_display_list(ctx, data->list);
// Free the data structured passed back and forth
// between the main thread and rendering thread.
free(data);
}
fprintf(stderr, "finally!\n");
fflush(NULL);
free(thread);
// Finally the document is closed and the main thread's
// context is freed.
fz_drop_document(ctx, doc);
fz_drop_context(ctx);
return 0;
}
int bmpmupdf_pdffile_to_bmp(WILLUSBITMAP *bmp,char *filename,int pageno,double dpi,
int bpp)
{
fz_context *ctx;
fz_colorspace *colorspace;
fz_document *doc;
fz_page *page;
fz_display_list *list;
fz_device *dev;
fz_pixmap *pix;
double dpp;
fz_rect bounds,bounds2;
fz_matrix ctm;
fz_irect bbox;
// fz_glyph_cache *glyphcache;
// fz_error error;
int np,status;
dev=NULL;
list=NULL;
page=NULL;
doc=NULL;
status=0;
if (pageno<1)
return(-99);
ctx = fz_new_context(NULL,NULL,FZ_STORE_DEFAULT);
if (!ctx)
return(-1);
fz_try(ctx)
{
fz_register_document_handlers(ctx);
fz_set_aa_level(ctx,8);
/* Sumatra version of MuPDF v1.4 -- use locally installed fonts */
pdf_install_load_system_font_funcs(ctx);
// fz_accelerate();
// glyphcache=fz_new_glyph_cache();
colorspace=(bpp==8 ? fz_device_gray(ctx) : fz_device_rgb(ctx));
fz_try(ctx) { doc=fz_open_document(ctx,filename); }
fz_catch(ctx)
{
fz_free_context(ctx);
return(-1);
}
/*
if (fz_needs_password(doc) && !fz_authenticate_password(doc,password))
return(-2);
*/
// error=pdf_load_page_tree(xref);
// if (error)
// {
// pdf_free_xref(xref);
// return(-2);
// }
np=fz_count_pages(doc);
if (pageno>np)
return(-99);
fz_try(ctx) { page = fz_load_page(doc,pageno-1); }
fz_catch(ctx)
{
fz_close_document(doc);
fz_free_context(ctx);
return(-3);
}
fz_try(ctx) { list=fz_new_display_list(ctx);
dev=fz_new_list_device(ctx,list);
fz_run_page(doc,page,dev,&fz_identity,NULL);
}
fz_catch(ctx)
{
fz_free_device(dev);
fz_drop_display_list(ctx,list);
fz_free_page(doc,page);
fz_close_document(doc);
fz_free_context(ctx);
return(-4);
}
fz_free_device(dev);
dev=NULL;
dpp=dpi/72.;
pix=NULL;
fz_var(pix);
fz_bound_page(doc,page,&bounds);
ctm=fz_identity;
fz_scale(&ctm,dpp,dpp);
// ctm=fz_concat(ctm,fz_rotate(rotation));
bounds2=bounds;
fz_transform_rect(&bounds2,&ctm);
fz_round_rect(&bbox,&bounds2);
// ctm=fz_translate(0,-page->mediabox.y1);
// ctm=fz_concat(ctm,fz_scale(dpp,-dpp));
// ctm=fz_concat(ctm,fz_rotate(page->rotate));
// ctm=fz_concat(ctm,fz_rotate(0));
// bbox=fz_round_rect(fz_transform_rect(ctm,page->mediabox));
// pix=fz_new_pixmap_with_rect(colorspace,bbox);
fz_try(ctx)
{
pix=fz_new_pixmap_with_bbox(ctx,colorspace,&bbox);
fz_clear_pixmap_with_value(ctx,pix,255);
dev=fz_new_draw_device(ctx,pix);
if (list)
fz_run_display_list(list,dev,&ctm,&bounds2,NULL);
else
fz_run_page(doc,page,dev,&ctm,NULL);
fz_free_device(dev);
dev=NULL;
status=bmpmupdf_pixmap_to_bmp(bmp,ctx,pix);
fz_drop_pixmap(ctx,pix);
}
fz_catch(ctx)
{
fz_free_device(dev);
fz_drop_pixmap(ctx,pix);
fz_drop_display_list(ctx,list);
fz_free_page(doc,page);
fz_close_document(doc);
fz_free_context(ctx);
return(-5);
}
if (list)
fz_drop_display_list(ctx,list);
fz_free_page(doc,page);
// pdf_free_xref(xref);
fz_close_document(doc);
fz_flush_warnings(ctx);
} /* fz_catch before registering handlers */
fz_catch(ctx) /* Error registering */
{
status = -10;
}
fz_free_context(ctx);
// fz_free_glyph_cache(glyphcache);
// fz_flush_warnings();
if (status<0)
return(status-10);
return(0);
}
/*
** Returns 0 if got dimensions.
*/
int bmpmupdf_pdffile_width_and_height(char *filename,int pageno,double *width_in,double *height_in)
{
fz_context *ctx;
fz_document *doc;
fz_page *page;
fz_display_list *list;
fz_device *dev;
fz_rect bounds;
int np;
dev=NULL;
list=NULL;
page=NULL;
doc=NULL;
if (pageno<1)
return(-99);
ctx = fz_new_context(NULL,NULL,FZ_STORE_DEFAULT);
if (!ctx)
return(-1);
fz_try(ctx)
{
fz_register_document_handlers(ctx);
fz_set_aa_level(ctx,8);
/* Sumatra version of MuPDF v1.4 -- use locally installed fonts */
pdf_install_load_system_font_funcs(ctx);
fz_try(ctx) { doc=fz_open_document(ctx,filename); }
fz_catch(ctx)
{
fz_free_context(ctx);
return(-1);
}
np=fz_count_pages(doc);
if (pageno>np)
return(-99);
fz_try(ctx) { page = fz_load_page(doc,pageno-1); }
fz_catch(ctx)
{
fz_close_document(doc);
fz_free_context(ctx);
return(-3);
}
fz_try(ctx) { list=fz_new_display_list(ctx);
dev=fz_new_list_device(ctx,list);
fz_run_page(doc,page,dev,&fz_identity,NULL);
}
fz_catch(ctx)
{
fz_free_device(dev);
fz_drop_display_list(ctx,list);
fz_free_page(doc,page);
fz_close_document(doc);
fz_free_context(ctx);
return(-4);
}
fz_free_device(dev);
dev=NULL;
fz_bound_page(doc,page,&bounds);
if (width_in!=NULL)
(*width_in)=fabs(bounds.x1-bounds.x0)/72.;
if (height_in!=NULL)
(*height_in)=fabs(bounds.y1-bounds.y0)/72.;
fz_drop_display_list(ctx,list);
fz_free_page(doc,page);
fz_close_document(doc);
}
fz_catch(ctx) /* Error registering */
{
fz_free_context(ctx);
return(-20);
}
fz_free_context(ctx);
return(0);
}
