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Diffstat (limited to 'platform/winrt/mupdfwinrt/muctx.cpp')
-rw-r--r--platform/winrt/mupdfwinrt/muctx.cpp895
1 files changed, 0 insertions, 895 deletions
diff --git a/platform/winrt/mupdfwinrt/muctx.cpp b/platform/winrt/mupdfwinrt/muctx.cpp
deleted file mode 100644
index d5c34c80..00000000
--- a/platform/winrt/mupdfwinrt/muctx.cpp
+++ /dev/null
@@ -1,895 +0,0 @@
-#pragma once
-
-#include "pch.h"
-#include "muctx.h"
-#include "Cache.h"
-#include <mutex>
-
-/* This class interfaces to mupdf API with minimal windows objects
- * (other than the file streaming stuff) */
-static int textlen(fz_text_page *page);
-
-#ifdef _WINRT_DLL
-// Attempt to use t.wait()
-//#include <ppltasks.h>
-//using namespace concurrency;
-/* File streaming set up for WinRT */
-static int win_next_file(fz_stream *stm, int len)
-{
- void *temp = stm->state;
- win_stream_struct *state = reinterpret_cast <win_stream_struct*> (temp);
- IRandomAccessStream^ Stream = state->stream;
- unsigned char *buf = state->public_buffer;
- unsigned long long curr_pos = Stream->Position;
- unsigned long long length = Stream->Size;
- DataReader^ local_reader = ref new DataReader(Stream);
- if (local_reader == nullptr)
- return 0;
-
- // This does not work here. mupdf is not set up to wait for win_next_file
- // to complete in an ansyn manner
- //auto t = create_task(local_reader->LoadAsync(len));
- //t.wait();
- DataReaderLoadOperation^ result = local_reader->LoadAsync(len);
- while (result->Status != AsyncStatus::Completed) {
- }
- result->GetResults();
-
- /* First see what is available */
- int curr_len2 = local_reader->UnconsumedBufferLength;
- if (curr_len2 < len)
- len = curr_len2;
-
- /* And make sure that we have enough room */
- if (len > sizeof(state->public_buffer))
- len = sizeof(state->public_buffer);
-
- Platform::Array<unsigned char>^ arrByte = ref new Platform::Array<unsigned char>(len);
- if (arrByte == nullptr)
- return 0;
- local_reader->ReadBytes(arrByte);
-
- memcpy(buf, arrByte->Data, len);
- local_reader->DetachStream();
-
- stm->rp = buf;
- stm->wp = buf + len;
- stm->pos += len;
- if (len == 0)
- return EOF;
- return *stm->rp++;
-}
-
-static void win_seek_file(fz_stream *stm, int offset, int whence)
-{
- void *temp = stm->state;
- win_stream_struct *stream = reinterpret_cast <win_stream_struct*> (temp);
- IRandomAccessStream^ Stream = stream->stream;
- unsigned long long curr_pos = Stream->Position;
- unsigned long long length = Stream->Size;
- unsigned long long n;
-
- if (whence == SEEK_END)
- {
- n = length + offset;
- }
- else if (whence == SEEK_CUR)
- {
- n = curr_pos + offset;
- }
- else if (whence == SEEK_SET)
- {
- n = offset;
- }
- Stream->Seek(n);
- curr_pos = Stream->Position;
- stm->pos = n;
- stm->wp = stm->rp;
-}
-
-static void win_close_file(fz_context *ctx, void *state)
-{
- win_stream_struct *win_stream = reinterpret_cast <win_stream_struct*> (state);
- IRandomAccessStream^ stream = win_stream->stream;
- delete stream;
-}
-
-status_t muctx::InitializeStream(IRandomAccessStream^ readStream, char *ext)
-{
- win_stream.stream = readStream;
- fz_stream *mu_stream = fz_new_stream(mu_ctx, 0, win_next_file, win_close_file, NULL);
- mu_stream->seek = win_seek_file;
- mu_stream->state = reinterpret_cast <void*> (&win_stream);
-
- /* Now lets see if we can open the file */
- fz_try(mu_ctx)
- {
- mu_doc = fz_open_document_with_stream(mu_ctx, ext, mu_stream);
- }
- fz_always(mu_ctx)
- {
- fz_close(mu_stream);
- }
- fz_catch(mu_ctx)
- {
- return E_FAILURE;
- }
- return S_ISOK;
-}
-#else
-status_t muctx::OpenDocument(char *filename)
-{
- fz_try(mu_ctx)
- {
- this->mu_doc = fz_open_document(mu_ctx, filename);
- }
- fz_catch(mu_ctx)
- {
- return E_FAILURE;
- }
- return S_ISOK;
-}
-#endif
-
-/* mutext functions see mupdf readme for details */
-static void lock_mutex(void *user, int lock)
-{
- LPCRITICAL_SECTION locks = (LPCRITICAL_SECTION)user;
- EnterCriticalSection(&locks[lock]);
-}
-
-static void unlock_mutex(void *user, int lock)
-{
- LPCRITICAL_SECTION locks = (LPCRITICAL_SECTION)user;
- LeaveCriticalSection(&locks[lock]);
-}
-
-void muctx::CleanUp(void)
-{
- fz_free_outline(mu_ctx, mu_outline);
- fz_close_document(mu_doc);
- page_cache->Empty(mu_ctx);
- annot_cache->Empty(mu_ctx);
- fz_free_context(mu_ctx);
-
- delete page_cache;
- delete annot_cache;
- annot_cache = NULL;
- page_cache = NULL;
- this->mu_ctx = NULL;
- this->mu_doc = NULL;
- this->mu_outline = NULL;
-}
-
-void muctx::SetAA(int level)
-{
- fz_set_aa_level(mu_ctx, level);
-}
-
-/* Set up the context, mutex and cookie */
-status_t muctx::InitializeContext()
-{
- int i;
-
- /* Get the mutexes set up */
- for (i = 0; i < FZ_LOCK_MAX; i++)
- InitializeCriticalSectionEx(&mu_criticalsec[i], 0, 0);
- mu_locks.user = &mu_criticalsec[0];
- mu_locks.lock = lock_mutex;
- mu_locks.unlock = unlock_mutex;
-
- /* Allocate the context */
- this->mu_ctx = fz_new_context(NULL, &mu_locks, FZ_STORE_DEFAULT);
- if (this->mu_ctx == NULL)
- {
- return E_OUTOFMEM;
- }
- else
- {
- fz_register_document_handlers(this->mu_ctx);
- return S_ISOK;
- }
-}
-
-/* Initializer */
-muctx::muctx(void)
-{
- mu_ctx = NULL;
- mu_doc = NULL;
- mu_outline = NULL;
- page_cache = new Cache();
- annot_cache = new Cache();
-}
-
-/* Destructor */
-muctx::~muctx(void)
-{
- fz_free_outline(mu_ctx, mu_outline);
- fz_close_document(mu_doc);
- page_cache->Empty(mu_ctx);
- annot_cache->Empty(mu_ctx);
- fz_free_context(mu_ctx);
-
- mu_ctx = NULL;
- mu_doc = NULL;
- mu_outline = NULL;
- delete page_cache;
- page_cache = NULL;
- delete annot_cache;
- annot_cache = NULL;
-}
-
-/* Return the documents page count */
-int muctx::GetPageCount()
-{
- if (this->mu_doc == NULL)
- return -1;
- else
- return this->mu_doc->count_pages(this->mu_doc);
-}
-
-/* Get page size */
-int muctx::MeasurePage(int page_num, point_t *size)
-{
- fz_rect rect;
- fz_page *page = NULL;
- fz_rect *bounds;
-
- fz_try(mu_ctx)
- {
- page = fz_load_page(mu_doc, page_num);
- bounds = fz_bound_page(mu_doc, page, &rect);
- size->X = bounds->x1 - bounds->x0;
- size->Y = bounds->y1 - bounds->y0;
- }
- fz_always(mu_ctx)
- {
- fz_free_page(mu_doc, page);
- }
- fz_catch(mu_ctx)
- {
- return E_FAIL;
- }
- return 0;
-}
-
-/* Get page size */
-point_t muctx::MeasurePage(fz_page *page)
-{
- point_t pageSize;
- fz_rect rect;
- fz_rect *bounds;
-
- bounds = fz_bound_page(mu_doc, page, &rect);
- pageSize.X = bounds->x1 - bounds->x0;
- pageSize.Y = bounds->y1 - bounds->y0;
-
- return pageSize;
-}
-
-void muctx::FlattenOutline(fz_outline *outline, int level,
- sh_vector_content contents_vec)
-{
- char indent[8*4+1];
- if (level > 8)
- level = 8;
- memset(indent, ' ', level * 4);
- indent[level * 4] = 0;
-
- std::string indent_str = indent;
- std::string str_indent;
-
- while (outline)
- {
- if (outline->dest.kind == FZ_LINK_GOTO)
- {
- int page = outline->dest.ld.gotor.page;
- if (page >= 0 && outline->title)
- {
- /* Add to the contents std:vec */
- sh_content content_item(new content_t());
- content_item->page = page;
- content_item->string_orig = outline->title;
- str_indent = content_item->string_orig;
- str_indent.insert(0, indent_str);
- content_item->string_margin = str_indent;
- contents_vec->push_back(content_item);
- }
- }
- FlattenOutline(outline->down, level + 1, contents_vec);
- outline = outline->next;
- }
-}
-
-int muctx::GetContents(sh_vector_content contents_vec)
-{
- fz_outline *root = NULL;
- int has_content = 0;
-
- fz_var(root);
- fz_try(mu_ctx)
- {
- root = fz_load_outline(mu_doc);
- if (root != NULL)
- {
- has_content = 1;
- FlattenOutline(root, 0, contents_vec);
- }
- }
- fz_always(mu_ctx)
- {
- fz_free_outline(mu_ctx, root);
- }
- fz_catch(mu_ctx)
- {
- return E_FAIL;
- }
- return has_content;
-}
-
-int muctx::GetTextSearch(int page_num, char* needle, sh_vector_text texts_vec)
-{
- fz_page *page = NULL;
- fz_text_sheet *sheet = NULL;
- fz_device *dev = NULL;
- fz_text_page *text = NULL;
- int hit_count = 0;
- int k;
-
- fz_var(page);
- fz_var(sheet);
- fz_var(dev);
- fz_try(mu_ctx)
- {
- page = fz_load_page(mu_doc, page_num);
- sheet = fz_new_text_sheet(mu_ctx);
- text = fz_new_text_page(mu_ctx);
- dev = fz_new_text_device(mu_ctx, sheet, text);
- fz_run_page(mu_doc, page, dev, &fz_identity, NULL);
- fz_free_device(dev); /* Why does this need to be done here? Seems odd */
- dev = NULL;
- hit_count = fz_search_text_page(mu_ctx, text, needle, mu_hit_bbox, nelem(mu_hit_bbox));
-
- for (k = 0; k < hit_count; k++)
- {
- sh_text text_search(new text_search_t());
- text_search->upper_left.X = mu_hit_bbox[k].x0;
- text_search->upper_left.Y = mu_hit_bbox[k].y0;
- text_search->lower_right.X = mu_hit_bbox[k].x1;
- text_search->lower_right.Y = mu_hit_bbox[k].y1;
- texts_vec->push_back(text_search);
- }
- }
- fz_always(mu_ctx)
- {
- fz_free_page(mu_doc, page);
- fz_free_device(dev);
- fz_free_text_sheet(mu_ctx, sheet);
- fz_free_text_page(mu_ctx, text);
- }
- fz_catch(mu_ctx)
- {
- return E_FAIL;
- }
- return hit_count;
-}
-
-/* Get the links and pack into a smart pointer structure */
-unsigned int muctx::GetLinks(int page_num, sh_vector_link links_vec)
-{
- fz_page *page = NULL;
- fz_link *links = NULL;
- int k = 0;
- unsigned int num_links = 0;
-
- fz_var(page);
- fz_var(links);
- fz_try(mu_ctx)
- {
- page = fz_load_page(mu_doc, page_num);
- links = fz_load_links(mu_doc, page);
-
- fz_link *curr_link = links;
- if (curr_link != NULL)
- {
- /* Get our smart pointer structure filled */
- while (curr_link != NULL)
- {
- fz_rect curr_rect = curr_link->rect;
- sh_link link(new document_link_t());
-
- link->upper_left.X = curr_rect.x0;
- link->upper_left.Y = curr_rect.y0;
- link->lower_right.X = curr_rect.x1;
- link->lower_right.Y = curr_rect.y1;
-
- switch (curr_link->dest.kind)
- {
- case FZ_LINK_GOTO:
-
- link->type = LINK_GOTO;
- link->page_num = curr_link->dest.ld.gotor.page;
- break;
-
- case FZ_LINK_URI:
- {
- int lenstr = strlen(curr_link->dest.ld.uri.uri);
- std::unique_ptr<char[]> uri(new char[lenstr + 1]);
- strcpy_s(uri.get(), lenstr + 1, curr_link->dest.ld.uri.uri);
- link->uri.swap(uri);
- link->type = LINK_URI;
- break;
- }
-
- default:
- link->type = NOT_SET;
-
- }
- links_vec->push_back(link);
- curr_link = curr_link->next;
- num_links += 1;
- }
- }
- }
- fz_always(mu_ctx)
- {
- fz_free_page(mu_doc, page);
- fz_drop_link(mu_ctx, links);
- }
- fz_catch(mu_ctx)
- {
- return E_FAIL;
- }
- return num_links;
-}
-
-fz_display_list * muctx::CreateAnnotationList(int page_num)
-{
- fz_device *dev = NULL;
- fz_page *page = NULL;
- int width, height;
-
- /* First see if we have this one in the cache */
- fz_display_list *dlist = annot_cache->Use(page_num, &width, &height, mu_ctx);
- if (dlist != NULL)
- return dlist;
-
- /* Apparently not, lets go ahead and create and add to cache */
- fz_var(dev);
- fz_var(page);
- fz_var(dlist);
-
- fz_try(mu_ctx)
- {
- fz_annot *annot;
- page = fz_load_page(mu_doc, page_num);
- annot = fz_first_annot(mu_doc, page);
- if (annot != NULL)
- {
- /* Create display list */
- dlist = fz_new_display_list(mu_ctx);
- dev = fz_new_list_device(mu_ctx, dlist);
-
- for (annot = fz_first_annot(mu_doc, page); annot; annot = fz_next_annot(mu_doc, annot))
- fz_run_annot(mu_doc, page, annot, dev, &fz_identity, NULL);
- annot_cache->Add(page_num, 0, 0, dlist, mu_ctx);
- }
- }
- fz_always(mu_ctx)
- {
- fz_free_device(dev);
- fz_free_page(mu_doc, page);
- }
- fz_catch(mu_ctx)
- {
- fz_drop_display_list(mu_ctx, dlist);
- return NULL;
- }
- return dlist;
-}
-
-fz_display_list * muctx::CreateDisplayList(int page_num, int *width, int *height)
-{
- fz_device *dev = NULL;
- fz_page *page = NULL;
- point_t page_size;
-
- /* First see if we have this one in the cache */
- fz_display_list *dlist = page_cache->Use(page_num, width, height, mu_ctx);
- if (dlist != NULL)
- return dlist;
-
- /* Apparently not, lets go ahead and create and add to cache */
- fz_var(dev);
- fz_var(page);
- fz_var(dlist);
-
- fz_try(mu_ctx)
- {
- page = fz_load_page(mu_doc, page_num);
-
- /* Create a new list */
- dlist = fz_new_display_list(mu_ctx);
- dev = fz_new_list_device(mu_ctx, dlist);
- fz_run_page_contents(mu_doc, page, dev, &fz_identity, NULL);
- page_size = MeasurePage(page);
- *width = page_size.X;
- *height = page_size.Y;
- /* Add it to the cache and set that it is in use */
- page_cache->Add(page_num, *width, *height, dlist, mu_ctx);
- }
- fz_always(mu_ctx)
- {
- fz_free_device(dev);
- fz_free_page(mu_doc, page);
- }
- fz_catch(mu_ctx)
- {
- fz_drop_display_list(mu_ctx, dlist);
- return NULL;
- }
- return dlist;
-}
-
-/* A special version which will create the display list AND get the information
- that we need for various text selection tasks */
-fz_display_list * muctx::CreateDisplayListText(int page_num, int *width, int *height,
- fz_text_page **text_out, int *length)
-{
- fz_text_sheet *sheet = NULL;
- fz_text_page *text = NULL;
- fz_device *dev = NULL;
- fz_device *textdev = NULL;
- fz_page *page = NULL;
-
- point_t page_size;
- *length = 0;
-
- /* First see if we have this one in the cache */
- fz_display_list *dlist = page_cache->Use(page_num, width, height, mu_ctx);
- if (dlist != NULL)
- return dlist;
-
- /* Apparently not, lets go ahead and create and add to cache */
- fz_var(dev);
- fz_var(textdev);
- fz_var(page);
- fz_var(dlist);
- fz_var(sheet);
- fz_var(text);
-
- fz_try(mu_ctx)
- {
- page = fz_load_page(mu_doc, page_num);
- sheet = fz_new_text_sheet(mu_ctx);
- text = fz_new_text_page(mu_ctx);
-
- /* Create a new list */
- dlist = fz_new_display_list(mu_ctx);
- dev = fz_new_list_device(mu_ctx, dlist);
-
- /* Deal with text device */
- textdev = fz_new_text_device(mu_ctx, sheet, text);
- fz_run_page(mu_doc, page, textdev, &fz_identity, NULL);
-
- *length = text->len;
- fz_free_device(textdev);
- textdev = NULL;
- *text_out = text;
-
- fz_run_page_contents(mu_doc, page, dev, &fz_identity, NULL);
- page_size = MeasurePage(page);
- *width = page_size.X;
- *height = page_size.Y;
- /* Add it to the cache and set that it is in use */
- page_cache->Add(page_num, *width, *height, dlist, mu_ctx);
- }
- fz_always(mu_ctx)
- {
- fz_free_device(dev);
- fz_free_page(mu_doc, page);
- fz_free_text_sheet(mu_ctx, sheet);
-
- }
- fz_catch(mu_ctx)
- {
- fz_drop_display_list(mu_ctx, dlist);
- return NULL;
- }
- return dlist;
-}
-
-/* Render display list bmp_data buffer. No lock needed for this operation */
-status_t muctx::RenderPageMT(void *dlist, void *a_dlist, int page_width, int page_height,
- unsigned char *bmp_data, int bmp_width, int bmp_height,
- float scale, bool flipy, bool tile, point_t top_left,
- point_t bottom_right)
-{
- fz_device *dev = NULL;
- fz_pixmap *pix = NULL;
- fz_matrix ctm, *pctm = &ctm;
- fz_context *ctx_clone = NULL;
- fz_display_list *display_list = (fz_display_list*) dlist;
- fz_display_list *annot_displaylist = (fz_display_list*) a_dlist;
-
- ctx_clone = fz_clone_context(mu_ctx);
-
- fz_var(dev);
- fz_var(pix);
- fz_var(display_list);
- fz_var(annot_displaylist);
-
- fz_try(ctx_clone)
- {
- pctm = fz_scale(pctm, scale, scale);
- /* Flip on Y. */
- if (flipy)
- {
- ctm.f = (float) page_height * ctm.d;
- ctm.d = -ctm.d;
- ctm.f += top_left.Y;
- }
- else
- {
- ctm.f -= top_left.Y;
- }
- ctm.e -= top_left.X;
-
- pix = fz_new_pixmap_with_data(ctx_clone, fz_device_bgr(ctx_clone),
- bmp_width, bmp_height, bmp_data);
- fz_clear_pixmap_with_value(ctx_clone, pix, 255);
- dev = fz_new_draw_device(ctx_clone, pix);
- fz_run_display_list(display_list, dev, pctm, NULL, NULL);
- if (annot_displaylist != NULL)
- fz_run_display_list(annot_displaylist, dev, pctm, NULL, NULL);
-
- }
- fz_always(ctx_clone)
- {
- fz_free_device(dev);
- fz_drop_pixmap(ctx_clone, pix);
- fz_drop_display_list(ctx_clone, display_list);
- fz_drop_display_list(ctx_clone, annot_displaylist);
- }
- fz_catch(ctx_clone)
- {
- fz_free_context(ctx_clone);
- return E_FAILURE;
- }
- fz_free_context(ctx_clone);
- return S_ISOK;
-}
-
-/* Render page_num to size width by height into bmp_data buffer. Lock needed. */
-status_t muctx::RenderPage(int page_num, unsigned char *bmp_data, int bmp_width,
- int bmp_height, float scale, bool flipy)
-{
- fz_device *dev = NULL;
- fz_pixmap *pix = NULL;
- fz_page *page = NULL;
- fz_matrix ctm, *pctm = &ctm;
- point_t page_size;
-
- fz_var(dev);
- fz_var(pix);
- fz_var(page);
-
- fz_try(mu_ctx)
- {
- page = fz_load_page(mu_doc, page_num);
- page_size = MeasurePage(page);
- pctm = fz_scale(pctm, scale, scale);
- /* Flip on Y */
- if (flipy)
- {
- ctm.f = bmp_height;
- ctm.d = -ctm.d;
- }
- pix = fz_new_pixmap_with_data(mu_ctx, fz_device_bgr(mu_ctx), bmp_width,
- bmp_height, bmp_data);
- fz_clear_pixmap_with_value(mu_ctx, pix, 255);
- dev = fz_new_draw_device(mu_ctx, pix);
- fz_run_page(mu_doc, page, dev, pctm, NULL);
-
- fz_annot *annot;
- for (annot = fz_first_annot(mu_doc, page); annot; annot = fz_next_annot(mu_doc, annot))
- fz_run_annot(mu_doc, page, annot, dev, &fz_identity, NULL);
- }
- fz_always(mu_ctx)
- {
- fz_free_device(dev);
- fz_drop_pixmap(mu_ctx, pix);
- fz_free_page(mu_doc, page);
- }
- fz_catch(mu_ctx)
- {
- return E_FAILURE;
- }
- return S_ISOK;
-}
-
-bool muctx::RequiresPassword(void)
-{
- return fz_needs_password(mu_doc) != 0;
-}
-
-bool muctx::ApplyPassword(char* password)
-{
- return fz_authenticate_password(mu_doc, password) != 0;
-}
-
-std::string muctx::GetText(int page_num, int type)
-{
- fz_output *out = NULL;
- fz_device *dev = NULL;
- fz_page *page = NULL;
- fz_text_sheet *sheet = NULL;
- fz_text_page *text = NULL;
- fz_buffer *buf = NULL;
- std::string output;
-
- fz_var(dev);
- fz_var(page);
- fz_var(sheet);
- fz_var(text);
- fz_var(buf);
- fz_try(mu_ctx)
- {
- page = fz_load_page(mu_doc, page_num);
- sheet = fz_new_text_sheet(mu_ctx);
- text = fz_new_text_page(mu_ctx);
- dev = fz_new_text_device(mu_ctx, sheet, text);
- fz_run_page(mu_doc, page, dev, &fz_identity, NULL);
- fz_free_device(dev);
- dev = NULL;
- fz_analyze_text(mu_ctx, sheet, text);
- buf = fz_new_buffer(mu_ctx, 256);
- out = fz_new_output_with_buffer(mu_ctx, buf);
- if (type == HTML)
- {
- fz_print_text_page_html(mu_ctx, out, text);
- }
- else if (type == XML)
- {
- fz_print_text_page_xml(mu_ctx, out, text);
- }
- else
- {
- fz_print_text_page(mu_ctx, out, text);
- }
- output = std::string(((char*)buf->data));
- }
- fz_always(mu_ctx)
- {
- fz_free_device(dev);
- fz_free_page(mu_doc, page);
- fz_free_text_sheet(mu_ctx, sheet);
- fz_free_text_page(mu_ctx, text);
- fz_drop_buffer(mu_ctx, buf);
- }
- fz_catch(mu_ctx)
- {
- return nullptr;
- }
- return output;
-}
-
-void muctx::ReleaseText(void *text)
-{
- fz_text_page *text_page = (fz_text_page*) text;
- fz_free_text_page(mu_ctx, text_page);
-}
-
-/* To do: banding */
-status_t muctx::SavePage(char *filename, int page_num, int resolution, int type,
- bool append)
-{
- float zoom;
- fz_matrix ctm;
- fz_rect bounds, tbounds;
- FILE *file = NULL;
- fz_output *out = NULL;
- fz_device *dev = NULL;
- int width, height;
- fz_display_list *dlist = NULL;
- fz_display_list *annot_dlist = NULL;
- fz_page *page = NULL;
- bool valid = true;
- fz_pixmap *pix = NULL;
- fz_irect ibounds;
-
- fz_var(dev);
- fz_var(page);
- fz_var(dlist);
- fz_var(annot_dlist);
- fz_var(pix);
-
- fz_try(mu_ctx)
- {
- page = fz_load_page(mu_doc, page_num);
- fz_bound_page(mu_doc, page, &bounds);
- zoom = resolution / 72;
- fz_scale(&ctm, zoom, zoom);
- tbounds = bounds;
- fz_transform_rect(&tbounds, &ctm);
- fz_round_rect(&ibounds, &tbounds);
-
- /* First see if we have this one in the cache */
- dlist = page_cache->Use(page_num, &width, &height, mu_ctx);
- annot_dlist = annot_cache->Use(page_num, &width, &height, mu_ctx);
-
- if (type == SVG_OUT)
- {
- file = fopen(filename, "wb");
- if (file == NULL)
- fz_throw(mu_ctx, FZ_ERROR_GENERIC, "cannot open file '%s'", filename);
- out = fz_new_output_with_file(mu_ctx, file);
-
- dev = fz_new_svg_device(mu_ctx, out, tbounds.x1 - tbounds.x0, tbounds.y1 - tbounds.y0);
- if (dlist != NULL)
- fz_run_display_list(dlist, dev, &ctm, &tbounds, NULL);
- else
- fz_run_page(mu_doc, page, dev, &ctm, NULL);
- if (annot_dlist != NULL)
- fz_run_display_list(annot_dlist, dev, &ctm, &tbounds, NULL);
- else
- {
- fz_annot *annot;
- for (annot = fz_first_annot(mu_doc, page); annot; annot = fz_next_annot(mu_doc, annot))
- fz_run_annot(mu_doc, page, annot, dev, &fz_identity, NULL);
- }
- }
- else
- {
- pix = fz_new_pixmap_with_bbox(mu_ctx, fz_device_rgb(mu_ctx), &ibounds);
- fz_pixmap_set_resolution(pix, resolution);
- fz_clear_pixmap_with_value(mu_ctx, pix, 255);
- dev = fz_new_draw_device(mu_ctx, pix);
- if (dlist != NULL)
- fz_run_display_list(dlist, dev, &ctm, &tbounds, NULL);
- else
- fz_run_page(mu_doc, page, dev, &ctm, NULL);
- if (annot_dlist != NULL)
- fz_run_display_list(annot_dlist, dev, &ctm, &tbounds, NULL);
- else
- {
- fz_annot *annot;
- for (annot = fz_first_annot(mu_doc, page); annot; annot = fz_next_annot(mu_doc, annot))
- fz_run_annot(mu_doc, page, annot, dev, &fz_identity, NULL);
- }
- switch (type)
- {
- case PNM_OUT:
- fz_write_pnm(mu_ctx, pix, filename);
- break;
- case PCL_OUT: /* This can do multi-page */
- fz_pcl_options options;
- fz_pcl_preset(mu_ctx, &options, "ljet4");
- fz_write_pcl(mu_ctx, pix, filename, append, &options);
- break;
- case PWG_OUT: /* This can do multi-page */
- fz_write_pwg(mu_ctx, pix, filename, append, NULL);
- break;
- }
- }
- }
- fz_always(mu_ctx)
- {
- if (pix != NULL)
- fz_drop_pixmap(mu_ctx, pix);
- fz_free_device(dev);
- fz_free_page(mu_doc, page);
- if (dlist != NULL)
- fz_drop_display_list(mu_ctx, dlist);
- if (out != NULL)
- {
- fz_close_output(out);
- fclose(file);
- }
- }
- fz_catch(mu_ctx)
- {
- return E_FAILURE;
- }
- return S_ISOK;
-} \ No newline at end of file