void Mpdf::showPage()
{
fz_page *page = fz_load_page(doc, currentPage - 1);
fz_matrix transform;
fz_rotate(&transform, 0);
fz_pre_scale(&transform, currentZoom / 100.0f, currentZoom / 100.0f);
fz_rect bounds;
fz_bound_page(doc, page, &bounds);
fz_transform_rect(&bounds, &transform);
fz_irect bbox;
fz_round_rect(&bbox, &bounds);
fz_pixmap *pix = fz_new_pixmap_with_bbox(ctx, fz_device_rgb, &bbox);
fz_clear_pixmap_with_value(ctx, pix, 0xff);
fz_device *dev = fz_new_draw_device(ctx, pix);
fz_run_page(doc, page, dev, &transform, NULL);
fz_free_device(dev);
QString qpng = QString("%1.png").arg(currentPage);
const char *ccpng = qpng.toStdString().c_str();
char *cpng = new char[strlen(ccpng) + 1];
strcpy(cpng, ccpng);
fz_write_png(ctx, pix, cpng, 0);
QPixmap qpix(qpng);
pdfLabel->setPixmap(qpix);
fz_drop_pixmap(ctx, pix);
fz_free_page(doc, page);
}
fz_pixmap *
fz_new_pixmap_from_page_contents(fz_context *ctx, fz_page *page, const fz_matrix *ctm, fz_colorspace *cs)
{
fz_rect rect;
fz_irect irect;
fz_pixmap *pix;
fz_device *dev;
fz_bound_page(ctx, page, &rect);
fz_transform_rect(&rect, ctm);
fz_round_rect(&irect, &rect);
pix = fz_new_pixmap_with_bbox(ctx, cs, &irect);
fz_clear_pixmap_with_value(ctx, pix, 0xFF);
fz_try(ctx)
{
dev = fz_new_draw_device(ctx, pix);
fz_run_page_contents(ctx, page, dev, ctm, NULL);
}
fz_always(ctx)
{
fz_drop_device(ctx, dev);
}
fz_catch(ctx)
{
fz_drop_pixmap(ctx, pix);
fz_rethrow(ctx);
}
return pix;
}
void benchrenderpage(fz_context *ctx, pdf_document *xref, pdf_page *page, int pagenum)
{
fz_device *dev;
fz_pixmap *pix;
fz_bbox bbox;
mstimer timer;
timerstart(&timer);
bbox = fz_round_rect(pdf_bound_page(xref, page));
pix = fz_new_pixmap_with_bbox(ctx, fz_device_rgb, bbox);
fz_clear_pixmap_with_value(ctx, pix, 0xFF);
dev = fz_new_draw_device(ctx, pix);
fz_try(ctx) {
pdf_run_page(xref, page, dev, fz_identity, NULL);
timerstop(&timer);
logbench("pagerender %3d: %.2f ms\n", pagenum, timeinms(&timer));
}
fz_catch(ctx) {
logbench("Error: pdf_run_page() failed\n");
}
fz_drop_pixmap(ctx, pix);
fz_free_device(dev);
}
fz_pixmap *
fz_new_pixmap_from_annot(fz_context *ctx, fz_annot *annot, const fz_matrix *ctm, fz_colorspace *cs, int alpha)
{
fz_rect rect;
fz_irect irect;
fz_pixmap *pix;
fz_device *dev;
fz_bound_annot(ctx, annot, &rect);
fz_transform_rect(&rect, ctm);
fz_round_rect(&irect, &rect);
pix = fz_new_pixmap_with_bbox(ctx, cs, &irect, alpha);
if (alpha)
fz_clear_pixmap(ctx, pix);
else
fz_clear_pixmap_with_value(ctx, pix, 0xFF);
fz_try(ctx)
{
dev = fz_new_draw_device(ctx, ctm, pix);
fz_run_annot(ctx, annot, dev, &fz_identity, NULL);
}
fz_always(ctx)
{
fz_drop_device(ctx, dev);
}
fz_catch(ctx)
{
fz_drop_pixmap(ctx, pix);
fz_rethrow(ctx);
}
return pix;
}
fz_pixmap *
fz_new_pixmap_from_display_list(fz_context *ctx, fz_display_list *list, const fz_matrix *ctm, fz_colorspace *cs, int background)
{
fz_rect rect;
fz_irect irect;
fz_pixmap *pix;
fz_device *dev;
fz_bound_display_list(ctx, list, &rect);
fz_transform_rect(&rect, ctm);
fz_round_rect(&irect, &rect);
pix = fz_new_pixmap_with_bbox(ctx, cs, &irect);
if (background)
fz_clear_pixmap_with_value(ctx, pix, 0xFF);
else
fz_clear_pixmap(ctx, pix);
fz_try(ctx)
{
dev = fz_new_draw_device(ctx, pix);
fz_run_display_list(ctx, list, dev, ctm, NULL, NULL);
}
fz_always(ctx)
{
fz_drop_device(ctx, dev);
}
fz_catch(ctx)
{
fz_drop_pixmap(ctx, pix);
fz_rethrow(ctx);
}
return pix;
}
void *
renderer(void *data)
{
int pagenumber = ((struct data *) data)->pagenumber;
fz_context *ctx = ((struct data *) data)->ctx;
fz_display_list *list = ((struct data *) data)->list;
fz_bbox bbox = ((struct data *) data)->bbox;
fz_pixmap *pix = ((struct data *) data)->pix;
fprintf(stderr, "thread at page %d loading!\n", pagenumber);
// The context pointer is pointing to the main thread's
// context, so here we create a new context based on it for
// use in this thread.
ctx = fz_clone_context(ctx);
// Next we run the display list through the draw device which
// will render the request area of the page to the pixmap.
fprintf(stderr, "thread at page %d rendering!\n", pagenumber);
fz_device *dev = fz_new_draw_device(ctx, pix);
fz_run_display_list(list, dev, fz_identity, bbox, NULL);
fz_free_device(dev);
// This threads context is freed.
fz_free_context(ctx);
fprintf(stderr, "thread at page %d done!\n", pagenumber);
return data;
}
fz_device *
fz_new_draw_device_type3(fz_context *ctx, fz_glyph_cache *cache, fz_pixmap *dest)
{
fz_device *dev = fz_new_draw_device(ctx, cache, dest);
fz_draw_device *ddev = dev->user;
ddev->flags |= FZ_DRAWDEV_FLAGS_TYPE3;
return dev;
}
QImage Pdf::page(int i)
{
pdf_page* page = pdf_load_page(xref, i);
if (page == 0) {
printf("cannot load page %d\n", i);
return QImage();
}
static const float resolution = 300.0;
const float zoom = resolution / 72.0;
fz_matrix ctm = fz_translate(0, -page->mediabox.y1);
ctm = fz_concat(ctm, fz_scale(zoom, -zoom));
ctm = fz_concat(ctm, fz_rotate(page->rotate));
fz_bbox bbox = fz_round_rect(fz_transform_rect(ctm, page->mediabox));
fz_pixmap* pix = fz_new_pixmap_with_rect(ctx, fz_device_gray, bbox);
fz_clear_pixmap_with_color(pix, 255);
fz_device* dev = fz_new_draw_device(ctx, cache, pix);
pdf_run_page(xref, page, dev, ctm);
fz_free_device(dev);
int w = pix->w;
int h = pix->h;
QImage image(w, h, QImage::Format_MonoLSB);
QVector<QRgb> ct(2);
ct[0] = qRgb(255, 255, 255);
ct[1] = qRgb(0, 0, 0);
image.setColorTable(ct);
uchar* s = pix->samples;
int stride = image.bytesPerLine();
int bytes = w >> 3;
for (int line = 0; line < h; ++line) {
uchar* d = image.bits() + stride * line;
for (int col = 0; col < bytes; ++col) {
uchar data = 0;
for (int i = 0; i < 8; ++i) {
uchar v = *s++;
s++;
data >>= 1;
if (v < 128)
data |= 0x80;
}
*d++ = data;
}
}
fz_drop_pixmap(ctx, pix);
pdf_free_page(ctx, page);
return image;
}
static fz_pixmap *page_to_pixmap(fz_context *context, fz_document *doc, int pagenum) {
fz_page *page;
fz_pixmap *image;
fz_device *dev;
fz_rect bounds;
fz_bbox bbox;
fz_matrix ctm;
float scale;
printf("Rendering page %d\n", pagenum);
page = fz_load_page(doc, pagenum);
bounds = fz_bound_page(doc, page);
/* XXX: There is a small risk of lw/lh being incorrect
* due to a race condition during a refresh.
* This shouldn't affect any visible pages though, as it causes renders
* that will be discarded by finish_page_render to be faulty.
*/
ims = scale = lw / bounds.x1;
printf("W, H: (%f, %f)\n", lw, lh);
printf("Scale: %f\n", scale);
ctm = fz_scale(scale, scale);
pages[pagenum].w = bounds.x1;
pages[pagenum].h = bounds.y1;
bounds.x1 *= scale;
bounds.y1 *= scale;
pages[pagenum].sw = bounds.x1;
pages[pagenum].sh = bounds.y1;
bbox = fz_round_rect(bounds);
printf("Size: (%d, %d)\n", bbox.x1, bbox.y1);
image = fz_new_pixmap_with_bbox(context, fz_device_rgb, bbox);
dev = fz_new_draw_device(context, image);
fz_clear_pixmap_with_value(context, image, 255);
fz_run_page(doc, page, dev, ctm, NULL);
fz_free_device(dev);
fz_free_page(doc, page);
return image;
}
static void _pdf_doc_render_page(
struct _pdf_doc *self, cairo_t *cr, int x, int y,
int pageno, mume_matrix_t ctm, mume_rect_t rect)
{
/* TODO: implement a fz_device to rendering directly to cairo. */
fz_colorspace *colorspace;
fz_bbox bbox;
fz_device *idev;
fz_pixmap *pixmap;
fz_display_list *list;
cairo_format_t format;
cairo_surface_t *surface;
int stride;
#ifdef _WIN32
colorspace = fz_device_bgr;
#else
colorspace = fz_device_rgb;
#endif
list = _pdf_doc_get_list(self, pageno);
bbox = _mume_rect_to_fz_bbox(rect);
pixmap = fz_new_pixmap_with_rect(colorspace, bbox);
if (NULL == pixmap) {
mume_error(("fz_new_pixmap_with_rect(%d, %d, %d, %d)\n",
bbox.x0, bbox.y0, bbox.x1, bbox.y1));
return;
}
fz_clear_pixmap_with_color(pixmap, 255);
idev = fz_new_draw_device(self->glyph_cache, pixmap);
fz_execute_display_list(
list, idev, _mume_matrix_to_fz_matrix(ctm), bbox);
fz_free_device(idev);
/* Create cairo surface. */
format = CAIRO_FORMAT_ARGB32;
stride = cairo_format_stride_for_width(format, pixmap->w);
surface = cairo_image_surface_create_for_data(
pixmap->samples, format, pixmap->w, pixmap->h, stride);
if (surface) {
cairo_set_source_surface(cr, surface, x, y);
cairo_rectangle(cr, x, y, rect.width, rect.height);
cairo_fill(cr);
cairo_surface_destroy(surface);
}
fz_drop_pixmap(pixmap);
}
QImage Document::RenderPage (int num, double xRes, double yRes)
{
auto page = WrapPage (pdf_load_page (MuDoc_, num), MuDoc_);
if (!page)
return QImage ();
#if MUPDF_VERSION < 0x0102
const auto& rect = pdf_bound_page (MuDoc_, page.get ());
#else
fz_rect rect;
pdf_bound_page (MuDoc_, page.get (), &rect);
#endif
auto px = fz_new_pixmap (MuCtx_, fz_device_bgr, xRes * (rect.x1 - rect.x0), yRes * (rect.y1 - rect.y0));
fz_clear_pixmap (MuCtx_, px);
auto dev = fz_new_draw_device (MuCtx_, px);
#if MUPDF_VERSION < 0x0102
pdf_run_page (MuDoc_, page.get (), dev, fz_scale (xRes, yRes), NULL);
#else
fz_matrix matrix;
pdf_run_page (MuDoc_, page.get (), dev, fz_scale (&matrix, xRes, yRes), NULL);
#endif
fz_free_device (dev);
const int pxWidth = fz_pixmap_width (MuCtx_, px);
const int pxHeight = fz_pixmap_height (MuCtx_, px);
auto samples = fz_pixmap_samples (MuCtx_, px);
QImage temp (samples, pxWidth, pxHeight, QImage::Format_ARGB32);
QImage img (QSize (pxWidth, pxHeight), QImage::Format_ARGB32);
for (int y = 0; y < pxHeight; ++y)
{
auto target = reinterpret_cast<QRgb*> (img.scanLine (y));
const auto source = reinterpret_cast<QRgb*> (temp.scanLine (y));
std::memcpy (target, source, sizeof (source [0]) * pxWidth);
}
fz_drop_pixmap (MuCtx_, px);
temp = QImage (QSize (pxWidth, pxHeight), QImage::Format_ARGB32);
QPainter p;
p.begin (&temp);
p.fillRect (QRect (QPoint (0, 0), temp.size ()), Qt::white);
p.drawImage (0, 0, img);
p.end ();
return temp;
}
fz_device *
fz_new_draw_device_with_bbox(fz_context *ctx, fz_pixmap *dest, fz_bbox clip)
{
fz_device *dev = fz_new_draw_device(ctx, dest);
fz_draw_device *ddev = dev->user;
if (clip.x0 > ddev->stack[0].scissor.x0)
ddev->stack[0].scissor.x0 = clip.x0;
if (clip.x1 < ddev->stack[0].scissor.x1)
ddev->stack[0].scissor.x1 = clip.x1;
if (clip.y0 > ddev->stack[0].scissor.y0)
ddev->stack[0].scissor.y0 = clip.y0;
if (clip.y1 < ddev->stack[0].scissor.y1)
ddev->stack[0].scissor.y1 = clip.y1;
return dev;
}
void PDFDocument::Render(
Document::PixelWriter* pw, int page, float zoom, int rotation) {
assert((page >= 0) && (page < GetNumPages()));
std::unique_lock<std::mutex> lock(_render_mutex);
// 1. Init MuPDF structures.
const fz_matrix& m = Transform(zoom, rotation);
pdf_page* page_struct = GetPage(page);
const fz_irect& bbox = GetBoundingBox(page_struct, m);
fz_pixmap* pixmap = fz_new_pixmap_with_bbox(
_fz_context, fz_device_rgb(_fz_context), FZ_OBJ(bbox), nullptr, 1);
fz_device* dev = fz_new_draw_device(_fz_context, FZ_OBJ(fz_identity), pixmap);
// 2. Render page.
fz_clear_pixmap_with_value(_fz_context, pixmap, 0xff);
pdf_run_page(
_fz_context, _pdf_document, page_struct, dev, FZ_OBJ(m), nullptr);
// 3. Write pixmap to buffer. The page is vertically divided into n equal
// stripes, each copied to pw by one thread.
assert(fz_pixmap_components(_fz_context, pixmap) == 4);
uint8_t* buffer =
reinterpret_cast<uint8_t*>(fz_pixmap_samples(_fz_context, pixmap));
const int num_cols = fz_pixmap_width(_fz_context, pixmap);
const int num_rows = fz_pixmap_height(_fz_context, pixmap);
ExecuteInParallel([=](int num_threads, int i) {
const int num_rows_per_thread = num_rows / num_threads;
const int y_begin = i * num_rows_per_thread;
const int y_end =
(i == num_threads - 1) ? num_rows : (i + 1) * num_rows_per_thread;
uint8_t* p = buffer + y_begin * num_cols * 4;
for (int y = y_begin; y < y_end; ++y) {
for (int x = 0; x < num_cols; ++x) {
pw->Write(x, y, p[0], p[1], p[2]);
p += 4;
}
}
});
// 4. Clean up.
fz_close_device(_fz_context, dev);
fz_drop_device(_fz_context, dev);
fz_drop_pixmap(_fz_context, pixmap);
}
QImage render(qreal dpiX, qreal dpiY, const QRectF& rect) {
if (m_init) {
fz_scale(&m_matrix, dpiX / 72.0f, dpiY / 72.0f);
fz_bound_page(m_ctx, m_page, &m_bound);
fz_transform_rect(&m_bound, &m_matrix);
m_init = false;
}
if (!m_list) {
m_list = fz_new_display_list(m_ctx);
}
if (!m_dev) {
m_dev = fz_new_list_device(m_ctx, m_list);
fz_run_page(m_ctx, m_page, m_dev, &m_matrix, 0);
}
fz_matrix tile;
fz_translate(&tile, -m_bound.x0, -m_bound.y0);
fz_pre_translate(&tile, -rect.x(), -rect.y());
fz_rect tr;
tr.x0 = tr.y0 = 0.0;
int width = tr.x1 = rect.width();
int height = tr.y1 = rect.height();
QImage image(width, height, QImage::Format_RGB32);
image.fill(Qt::white); // TODO: configurable
fz_pixmap* pixmap =
fz_new_pixmap_with_data(m_ctx,
fz_device_bgr(m_ctx),
image.width(),
image.height(),
image.bits());
fz_device *device = fz_new_draw_device(m_ctx, pixmap);
fz_run_display_list(m_ctx, m_list, device, &tile, &tr, 0);
fz_drop_device(m_ctx, device);
fz_drop_pixmap(m_ctx, pixmap);
return image;
}
static void drawpage(xps_context *ctx, int pagenum)
{
xps_page *page;
fz_display_list *list;
fz_device *dev;
int start;
int code;
if (showtime)
{
start = gettime();
}
code = xps_load_page(&page, ctx, pagenum - 1);
if (code)
die(fz_rethrow(code, "cannot load page %d in file '%s'", pagenum, filename));
list = NULL;
if (uselist)
{
list = fz_new_display_list();
dev = fz_new_list_device(list);
xps_run_page(ctx, page, dev, fz_identity);
fz_free_device(dev);
}
if (showxml)
{
dev = fz_new_trace_device();
printf("<page number=\"%d\">\n", pagenum);
if (list)
fz_execute_display_list(list, dev, fz_identity, fz_infinite_bbox);
else
xps_run_page(ctx, page, dev, fz_identity);
printf("</page>\n");
fz_free_device(dev);
}
if (showtext)
{
fz_text_span *text = fz_new_text_span();
dev = fz_new_text_device(text);
if (list)
fz_execute_display_list(list, dev, fz_identity, fz_infinite_bbox);
else
xps_run_page(ctx, page, dev, fz_identity);
fz_free_device(dev);
printf("[Page %d]\n", pagenum);
if (showtext > 1)
fz_debug_text_span_xml(text);
else
fz_debug_text_span(text);
printf("\n");
fz_free_text_span(text);
}
if (showmd5 || showtime)
printf("page %s %d", filename, pagenum);
if (output || showmd5 || showtime)
{
float zoom;
fz_matrix ctm;
fz_rect rect;
fz_bbox bbox;
fz_pixmap *pix;
rect.x0 = rect.y0 = 0;
rect.x1 = page->width;
rect.y1 = page->height;
zoom = resolution / 96;
ctm = fz_translate(0, -page->height);
ctm = fz_concat(ctm, fz_scale(zoom, zoom));
bbox = fz_round_rect(fz_transform_rect(ctm, rect));
/* TODO: banded rendering and multi-page ppm */
pix = fz_new_pixmap_with_rect(colorspace, bbox);
if (savealpha)
fz_clear_pixmap(pix);
else
fz_clear_pixmap_with_color(pix, 255);
dev = fz_new_draw_device(glyphcache, pix);
if (list)
fz_execute_display_list(list, dev, ctm, bbox);
else
xps_run_page(ctx, page, dev, ctm);
fz_free_device(dev);
if (output)
{
char buf[512];
sprintf(buf, output, pagenum);
if (strstr(output, ".pgm") || strstr(output, ".ppm") || strstr(output, ".pnm"))
fz_write_pnm(pix, buf);
else if (strstr(output, ".pam"))
fz_write_pam(pix, buf, savealpha);
else if (strstr(output, ".png"))
fz_write_png(pix, buf, savealpha);
}
if (showmd5)
{
fz_md5 md5;
unsigned char digest[16];
int i;
fz_md5_init(&md5);
fz_md5_update(&md5, pix->samples, pix->w * pix->h * pix->n);
fz_md5_final(&md5, digest);
printf(" ");
for (i = 0; i < 16; i++)
printf("%02x", digest[i]);
}
fz_drop_pixmap(pix);
}
if (list)
fz_free_display_list(list);
if (showtime)
{
int end = gettime();
int diff = end - start;
if (diff < timing.min)
{
timing.min = diff;
timing.minpage = pagenum;
}
if (diff > timing.max)
{
timing.max = diff;
timing.maxpage = pagenum;
}
timing.total += diff;
timing.count ++;
printf(" %dms", diff);
}
if (showmd5 || showtime)
printf("\n");
}
void render(char *filename, int pagenumber, int zoom, int rotation)
{
// Create a context to hold the exception stack and various caches.
fz_context *ctx = fz_new_context(NULL, NULL, FZ_STORE_UNLIMITED);
// Open the PDF, XPS or CBZ document.
fz_document *doc = fz_open_document(ctx, filename);
// Retrieve the number of pages (not used in this example).
int pagecount = fz_count_pages(doc);
// Load the page we want. Page numbering starts from zero.
fz_page *page = fz_load_page(doc, pagenumber - 1);
// Calculate a transform to use when rendering. This transform
// contains the scale and rotation. Convert zoom percentage to a
// scaling factor. Without scaling the resolution is 72 dpi.
fz_matrix transform;
fz_rotate(&transform, rotation);
fz_pre_scale(&transform, zoom / 100.0f, zoom / 100.0f);
// Take the page bounds and transform them by the same matrix that
// we will use to render the page.
fz_rect bounds;
fz_bound_page(doc, page, &bounds);
fz_transform_rect(&bounds, &transform);
// Create a blank pixmap to hold the result of rendering. The
// pixmap bounds used here are the same as the transformed page
// bounds, so it will contain the entire page. The page coordinate
// space has the origin at the top left corner and the x axis
// extends to the right and the y axis extends down.
fz_irect bbox;
fz_round_rect(&bbox, &bounds);
fz_pixmap *pix = fz_new_pixmap_with_bbox(ctx, fz_device_rgb(ctx), &bbox);
fz_clear_pixmap_with_value(ctx, pix, 0xff);
// A page consists of a series of objects (text, line art, images,
// gradients). These objects are passed to a device when the
// interpreter runs the page. There are several devices, used for
// different purposes:
//
// draw device -- renders objects to a target pixmap.
//
// text device -- extracts the text in reading order with styling
// information. This text can be used to provide text search.
//
// list device -- records the graphic objects in a list that can
// be played back through another device. This is useful if you
// need to run the same page through multiple devices, without
// the overhead of parsing the page each time.
// Create a draw device with the pixmap as its target.
// Run the page with the transform.
fz_device *dev = fz_new_draw_device(ctx, pix);
fz_run_page(doc, page, dev, &transform, NULL);
fz_free_device(dev);
// Save the pixmap to a file.
fz_write_png(ctx, pix, "out.png", 0);
// Clean up.
fz_drop_pixmap(ctx, pix);
fz_free_page(doc, page);
fz_close_document(doc);
fz_free_context(ctx);
}
static void drawpage(fz_context *ctx, fz_document *doc, int pagenum)
{
fz_page *page;
fz_link *links;
fz_display_list *list = NULL;
fz_device *dev = NULL;
int start;
fz_var(list);
fz_var(dev);
if (showtime)
{
start = gettime();
}
fz_try(ctx)
{
page = fz_load_page(doc, pagenum - 1);
}
fz_catch(ctx)
{
fz_throw(ctx, "cannot load page %d in file '%s'", pagenum, filename);
}
fz_try(ctx)
{
links = fz_load_links(doc, page);
}
fz_catch(ctx)
{
fz_throw(ctx, "cannot load links for 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, NULL);
}
fz_catch(ctx)
{
fz_free_device(dev);
fz_free_display_list(ctx, list);
fz_free_page(doc, page);
fz_throw(ctx, "cannot draw page %d in file '%s'", pagenum, filename);
}
fz_free_device(dev);
dev = NULL;
}
if (showjson)
{
fz_text_page *text = NULL;
fz_var(text);
fz_try(ctx)
{
text = fz_new_text_page(ctx, fz_bound_page(doc, page));
dev = fz_new_text_device(ctx, sheet, text);
if (list)
fz_run_display_list(list, dev, fz_identity, fz_infinite_bbox, NULL);
else
fz_run_page(doc, page, dev, fz_identity, NULL);
fz_free_device(dev);
dev = NULL;
fz_print_text_page_json(ctx, stdout, text, links);
printf("\f\n");
}
fz_catch(ctx)
{
fz_free_device(dev);
fz_free_text_page(ctx, text);
fz_free_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow(ctx);
}
fz_free_text_page(ctx, text);
}
if (showmd5 || showtime)
printf("page %s %d", filename, pagenum);
if (output || showmd5 || showtime)
{
float zoom;
fz_matrix ctm;
fz_rect bounds, bounds2;
fz_bbox bbox;
fz_pixmap *pix = NULL;
int w, h;
fz_var(pix);
bounds = fz_bound_page(doc, page);
zoom = resolution / 72;
ctm = fz_scale(zoom, zoom);
ctm = fz_concat(ctm, fz_rotate(rotation));
bounds2 = fz_transform_rect(ctm, bounds);
bbox = fz_round_rect(bounds2);
/* Make local copies of our width/height */
w = width;
h = height;
/* If a resolution is specified, check to see whether w/h are
* exceeded; if not, unset them. */
if (res_specified)
{
int t;
t = bbox.x1 - bbox.x0;
if (w && t <= w)
w = 0;
t = bbox.y1 - bbox.y0;
if (h && t <= h)
h = 0;
}
/* Now w or h will be 0 unless then need to be enforced. */
if (w || h)
{
float scalex = w/(bounds2.x1-bounds2.x0);
float scaley = h/(bounds2.y1-bounds2.y0);
if (fit)
{
if (w == 0)
scalex = 1.0f;
if (h == 0)
scaley = 1.0f;
}
else
{
if (w == 0)
scalex = scaley;
if (h == 0)
scaley = scalex;
}
if (!fit)
{
if (scalex > scaley)
scalex = scaley;
else
scaley = scalex;
}
ctm = fz_concat(ctm, fz_scale(scalex, scaley));
bounds2 = fz_transform_rect(ctm, bounds);
}
bbox = fz_round_rect(bounds2);
/* TODO: banded rendering and multi-page ppm */
fz_try(ctx)
{
pix = fz_new_pixmap_with_bbox(ctx, colorspace, bbox);
if (savealpha)
fz_clear_pixmap(ctx, pix);
else
fz_clear_pixmap_with_value(ctx, pix, 255);
dev = fz_new_draw_device(ctx, pix);
if (list)
fz_run_display_list(list, dev, ctm, bbox, NULL);
else
fz_run_page(doc, page, dev, ctm, NULL);
fz_free_device(dev);
dev = NULL;
if (invert)
fz_invert_pixmap(ctx, pix);
if (gamma_value != 1)
fz_gamma_pixmap(ctx, pix, gamma_value);
if (savealpha)
fz_unmultiply_pixmap(ctx, pix);
if (output)
{
char buf[512];
sprintf(buf, output, pagenum);
if (strstr(output, ".pgm") || strstr(output, ".ppm") || strstr(output, ".pnm"))
fz_write_pnm(ctx, pix, buf);
else if (strstr(output, ".pam"))
fz_write_pam(ctx, pix, buf, savealpha);
else if (strstr(output, ".png"))
fz_write_png(ctx, pix, buf, savealpha);
else if (strstr(output, ".pbm")) {
fz_bitmap *bit = fz_halftone_pixmap(ctx, pix, NULL);
fz_write_pbm(ctx, bit, buf);
fz_drop_bitmap(ctx, bit);
}
}
if (showmd5)
{
unsigned char digest[16];
int i;
fz_md5_pixmap(pix, digest);
printf(" ");
for (i = 0; i < 16; i++)
printf("%02x", digest[i]);
}
fz_drop_pixmap(ctx, pix);
}
fz_catch(ctx)
{
fz_free_device(dev);
fz_drop_pixmap(ctx, pix);
fz_free_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 };
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_throw(ctx, "cannot load page %d in file '%s'", pagenum, filename);
}
if (mujstest_file)
{
fz_interactive *inter = fz_interact(doc);
fz_widget *widget = NULL;
if (inter)
widget = fz_first_widget(inter, page);
if (widget)
{
fprintf(mujstest_file, "GOTO %d\n", pagenum);
needshot = 1;
}
for (;widget; widget = fz_next_widget(inter, widget))
{
fz_rect rect = fz_widget_bbox(widget);
int w = (rect.x1-rect.x0);
int h = (rect.y1-rect.y0);
int len;
int type = fz_widget_get_type(widget);
++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 FZ_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 FZ_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 FZ_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 FZ_WIDGET_TYPE_TEXT:
{
int maxlen = fz_text_widget_max_len(inter, widget);
int texttype = fz_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 FZ_WIDGET_CONTENT_UNRESTRAINED:
fprintf(mujstest_file, "TEXT %d ", mujstest_count);
escape_string(mujstest_file, len-3, lorem);
fprintf(mujstest_file, "\n");
break;
case FZ_WIDGET_CONTENT_NUMBER:
fprintf(mujstest_file, "TEXT %d\n", mujstest_count);
break;
case FZ_WIDGET_CONTENT_SPECIAL:
fprintf(mujstest_file, "TEXT %lld\n", 46702919800LL + mujstest_count);
break;
case FZ_WIDGET_CONTENT_DATE:
fprintf(mujstest_file, "TEXT Jun %d 1979\n", 1 + ((13 + mujstest_count) % 30));
break;
case FZ_WIDGET_CONTENT_TIME:
++mujstest_count;
fprintf(mujstest_file, "TEXT %02d:%02d\n", ((mujstest_count/60) % 24), mujstest_count % 60);
break;
}
break;
}
case FZ_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 FZ_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_free_display_list(ctx, list);
fz_free_page(doc, page);
fz_throw(ctx, "cannot draw page %d in file '%s'", pagenum, filename);
}
}
if (showxml)
{
fz_try(ctx)
{
dev = fz_new_trace_device(ctx);
fz_printf(out, "<page number=\"%d\">\n", pagenum);
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_printf(out, "</page>\n");
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
}
fz_catch(ctx)
{
fz_free_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, fz_bound_page(doc, page));
dev = fz_new_text_device(ctx, sheet, text);
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_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_free_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow(ctx);
}
}
if (showmd5 || showtime)
printf("page %s %d", filename, pagenum);
#ifdef GDI_PLUS_BMP_RENDERER
// hack: use -G0 to "enable GDI+" when saving as TGA
if (output && (strstr(output, ".bmp") || strstr(output, ".tga") && !gamma_value))
drawbmp(ctx, doc, page, list, pagenum);
else
#endif
if (output || showmd5 || showtime)
{
float zoom;
fz_matrix ctm;
fz_rect bounds, tbounds;
fz_bbox ibounds;
fz_pixmap *pix = NULL;
int w, h;
fz_var(pix);
bounds = fz_bound_page(doc, page);
zoom = resolution / 72;
ctm = fz_scale(zoom, zoom);
ctm = fz_concat(ctm, fz_rotate(rotation));
tbounds = fz_transform_rect(ctm, bounds);
ibounds = fz_round_rect(tbounds); /* convert to integers */
/* Make local copies of our width/height */
w = width;
h = height;
/* If a resolution is specified, check to see whether w/h are
* exceeded; if not, unset them. */
if (res_specified)
{
int t;
t = ibounds.x1 - ibounds.x0;
if (w && t <= w)
w = 0;
t = ibounds.y1 - ibounds.y0;
if (h && t <= h)
h = 0;
}
/* Now w or h will be 0 unless they need to be enforced. */
if (w || h)
{
float scalex = w / (tbounds.x1 - tbounds.x0);
float scaley = h / (tbounds.y1 - tbounds.y0);
if (fit)
{
if (w == 0)
scalex = 1.0f;
if (h == 0)
scaley = 1.0f;
}
else
{
if (w == 0)
scalex = scaley;
if (h == 0)
scaley = scalex;
}
if (!fit)
{
if (scalex > scaley)
scalex = scaley;
else
scaley = scalex;
}
ctm = fz_concat(ctm, fz_scale(scalex, scaley));
tbounds = fz_transform_rect(ctm, bounds);
}
ibounds = fz_round_rect(tbounds);
/* TODO: banded rendering and multi-page ppm */
fz_try(ctx)
{
pix = fz_new_pixmap_with_bbox(ctx, colorspace, ibounds);
if (savealpha)
fz_clear_pixmap(ctx, pix);
else
fz_clear_pixmap_with_value(ctx, pix, 255);
dev = fz_new_draw_device(ctx, pix);
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;
if (invert)
fz_invert_pixmap(ctx, pix);
if (gamma_value != 1)
fz_gamma_pixmap(ctx, pix, gamma_value);
if (savealpha)
fz_unmultiply_pixmap(ctx, pix);
if (output)
{
char buf[512];
sprintf(buf, output, pagenum);
if (strstr(output, ".pgm") || strstr(output, ".ppm") || strstr(output, ".pnm"))
fz_write_pnm(ctx, pix, buf);
else if (strstr(output, ".pam"))
fz_write_pam(ctx, pix, buf, savealpha);
else if (strstr(output, ".png"))
fz_write_png(ctx, pix, buf, savealpha);
else if (strstr(output, ".pbm")) {
fz_bitmap *bit = fz_halftone_pixmap(ctx, pix, NULL);
fz_write_pbm(ctx, bit, buf);
fz_drop_bitmap(ctx, bit);
}
/* SumatraPDF: support TGA as output format */
else if (strstr(output, ".tga"))
fz_write_tga(ctx, pix, buf, savealpha);
}
if (showmd5)
{
unsigned char digest[16];
int i;
fz_md5_pixmap(pix, digest);
printf(" ");
for (i = 0; i < 16; i++)
printf("%02x", digest[i]);
}
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
fz_drop_pixmap(ctx, pix);
}
fz_catch(ctx)
{
fz_free_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);
fz_try(ctx)
{
page = fz_load_page(doc, pagenum - 1);
}
fz_catch(ctx)
{
fz_throw(ctx, "cannot load page %d in file '%s'", pagenum, filename);
}
float zoom;
fz_matrix ctm;
fz_rect bounds, bounds2;
fz_bbox bbox;
fz_pixmap *pix = NULL;
int w, h;
fz_var(pix);
bounds = fz_bound_page(doc, page);
zoom = resolution / 72;
ctm = fz_scale(zoom, zoom);
ctm = fz_concat(ctm, fz_rotate(rotation));
bounds2 = fz_transform_rect(ctm, bounds);
bbox = fz_round_rect(bounds2);
/* Make local copies of our width/height */
w = width;
h = height;
/* If a resolution is specified, check to see whether w/h are
* exceeded; if not, unset them. */
if (res_specified)
{
int t;
t = bbox.x1 - bbox.x0;
if (w && t <= w)
w = 0;
t = bbox.y1 - bbox.y0;
if (h && t <= h)
h = 0;
}
/* Now w or h will be 0 unless then need to be enforced. */
if (w || h)
{
float scalex = w/(bounds2.x1-bounds2.x0);
float scaley = h/(bounds2.y1-bounds2.y0);
if (fit)
{
if (w == 0)
scalex = 1.0f;
if (h == 0)
scaley = 1.0f;
}
else
{
if (w == 0)
scalex = scaley;
if (h == 0)
scaley = scalex;
}
if (!fit)
{
if (scalex > scaley)
scalex = scaley;
else
scaley = scalex;
}
ctm = fz_concat(ctm, fz_scale(scalex, scaley));
bounds2 = fz_transform_rect(ctm, bounds);
}
bbox = fz_round_rect(bounds2);
/* TODO: banded rendering and multi-page ppm */
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, bbox, &cookie);
else
fz_run_page(doc, page, dev, ctm, &cookie);
fz_free_device(dev);
dev = NULL;
int size = fz_pixmap_height(ctx, pix) * fz_pixmap_width(ctx, pix);
inplace_reorder(fz_pixmap_samples(ctx, pix), size);
size_t x_offset = (width - fz_pixmap_width(ctx, pix)) / 2;
size_t y_offset = (height - fz_pixmap_height(ctx, pix)) / 2;;
if (toggle_decors) {
x_offset += decor_left_width;
y_offset += decor_top_height;
}
for (int i = 0; i < fz_pixmap_height(ctx, pix); ++i) {
memcpy(&GFX(gfx_ctx, x_offset, y_offset + i), &fz_pixmap_samples(ctx, pix)[fz_pixmap_width(ctx, pix) * i * 4], fz_pixmap_width(ctx, pix) * 4);
}
}
fz_always(ctx)
{
fz_free_device(dev);
dev = NULL;
fz_drop_pixmap(ctx, pix);
}
fz_catch(ctx)
{
fz_free_display_list(ctx, list);
fz_free_page(doc, page);
fz_rethrow(ctx);
}
if (list)
fz_free_display_list(ctx, list);
fz_free_page(doc, page);
fz_flush_warnings(ctx);
if (cookie.errors)
errored = 1;
}
static void pdfapp_showpage(pdfapp_t *app, int loadpage, int drawpage, int repaint)
{
char buf[256];
fz_device *idev;
fz_device *tdev;
fz_colorspace *colorspace;
fz_matrix ctm;
fz_bbox bbox;
wincursor(app, WAIT);
if (loadpage)
{
if (app->page_list)
fz_free_display_list(app->page_list);
if (app->page_text)
fz_free_text_span(app->page_text);
if (app->page_links)
pdf_free_link(app->page_links);
if (app->xref)
pdfapp_loadpage_pdf(app);
if (app->xps)
pdfapp_loadpage_xps(app);
/* Zero search hit position */
app->hit = -1;
app->hitlen = 0;
/* Extract text */
app->page_text = fz_new_text_span();
tdev = fz_new_text_device(app->page_text);
fz_execute_display_list(app->page_list, tdev, fz_identity, fz_infinite_bbox);
fz_free_device(tdev);
}
if (drawpage)
{
sprintf(buf, "%s - %d/%d (%d dpi)", app->doctitle,
app->pageno, app->pagecount, app->resolution);
wintitle(app, buf);
ctm = pdfapp_viewctm(app);
bbox = fz_round_rect(fz_transform_rect(ctm, app->page_bbox));
/* Draw */
if (app->image)
fz_drop_pixmap(app->image);
if (app->grayscale)
colorspace = fz_device_gray;
else
#ifdef _WIN32
colorspace = fz_device_bgr;
#else
colorspace = fz_device_rgb;
#endif
app->image = fz_new_pixmap_with_rect(colorspace, bbox);
fz_clear_pixmap_with_color(app->image, 255);
idev = fz_new_draw_device(app->cache, app->image);
fz_execute_display_list(app->page_list, idev, ctm, bbox);
fz_free_device(idev);
}
if (repaint)
{
pdfapp_panview(app, app->panx, app->pany);
if (app->shrinkwrap)
{
int w = app->image->w;
int h = app->image->h;
if (app->winw == w)
app->panx = 0;
if (app->winh == h)
app->pany = 0;
if (w > app->scrw * 90 / 100)
w = app->scrw * 90 / 100;
if (h > app->scrh * 90 / 100)
h = app->scrh * 90 / 100;
if (w != app->winw || h != app->winh)
winresize(app, w, h);
}
winrepaint(app);
wincursor(app, ARROW);
}
fz_flush_warnings();
}
JNIEXPORT jboolean JNICALL
Java_com_artifex_mupdf_MuPDFCore_drawPage(JNIEnv *env, jobject thiz, jobject bitmap,
int pageW, int pageH, int patchX, int patchY, int patchW, int patchH)
{
AndroidBitmapInfo info;
void *pixels;
int ret;
fz_device *dev = NULL;
float zoom;
fz_matrix ctm;
fz_bbox bbox;
fz_pixmap *pix = NULL;
float xscale, yscale;
fz_bbox rect;
page_cache *pc = &pages[current];
int hq = (patchW < pageW || patchH < pageH);
if (pc->page == NULL)
return 0;
fz_var(pix);
fz_var(dev);
LOGI("In native method\n");
if ((ret = AndroidBitmap_getInfo(env, bitmap, &info)) < 0) {
LOGE("AndroidBitmap_getInfo() failed ! error=%d", ret);
return 0;
}
LOGI("Checking format\n");
if (info.format != ANDROID_BITMAP_FORMAT_RGBA_8888) {
LOGE("Bitmap format is not RGBA_8888 !");
return 0;
}
LOGI("locking pixels\n");
if ((ret = AndroidBitmap_lockPixels(env, bitmap, &pixels)) < 0) {
LOGE("AndroidBitmap_lockPixels() failed ! error=%d", ret);
return 0;
}
/* Call mupdf to render display list to screen */
LOGE("Rendering page(%d)=%dx%d patch=[%d,%d,%d,%d]",
pc->number, pageW, pageH, patchX, patchY, patchW, patchH);
fz_try(ctx)
{
fz_interactive *idoc = fz_interact(doc);
// Call fz_update_page now to ensure future calls yield the
// changes from the current state
fz_update_page(idoc, pc->page);
if (hq) {
// This is a rendering of the hq patch. Ensure there's a second copy of the
// page for use when updating this patch
if (pc->hq_page) {
if (idoc)
fz_update_page(idoc, pc->hq_page);
} else {
// There is only ever one hq patch, so we need
// cache only one page object for the sake of hq
clear_hq_pages();
pc->hq_page = fz_load_page(doc, pc->number);
}
}
if (pc->page_list == NULL)
{
/* Render to list */
pc->page_list = fz_new_display_list(ctx);
dev = fz_new_list_device(ctx, pc->page_list);
fz_run_page_contents(doc, pc->page, dev, fz_identity, NULL);
}
if (pc->annot_list == NULL)
{
fz_annot *annot;
if (dev)
{
fz_free_device(dev);
dev = NULL;
}
pc->annot_list = fz_new_display_list(ctx);
dev = fz_new_list_device(ctx, pc->annot_list);
for (annot = fz_first_annot(doc, pc->page); annot; annot = fz_next_annot(doc, annot))
fz_run_annot(doc, pc->page, annot, dev, fz_identity, NULL);
}
rect.x0 = patchX;
rect.y0 = patchY;
rect.x1 = patchX + patchW;
rect.y1 = patchY + patchH;
pix = fz_new_pixmap_with_bbox_and_data(ctx, colorspace, rect, pixels);
if (pc->page_list == NULL && pc->annot_list == NULL)
{
fz_clear_pixmap_with_value(ctx, pix, 0xd0);
break;
}
fz_clear_pixmap_with_value(ctx, pix, 0xff);
zoom = resolution / 72;
ctm = fz_scale(zoom, zoom);
bbox = fz_round_rect(fz_transform_rect(ctm, pc->media_box));
/* Now, adjust ctm so that it would give the correct page width
* heights. */
xscale = (float)pageW/(float)(bbox.x1-bbox.x0);
yscale = (float)pageH/(float)(bbox.y1-bbox.y0);
ctm = fz_concat(ctm, fz_scale(xscale, yscale));
bbox = fz_round_rect(fz_transform_rect(ctm, pc->media_box));
dev = fz_new_draw_device(ctx, pix);
#ifdef TIME_DISPLAY_LIST
{
clock_t time;
int i;
LOGE("Executing display list");
time = clock();
for (i=0; i<100;i++) {
#endif
if (pc->page_list)
fz_run_display_list(pc->page_list, dev, ctm, bbox, NULL);
if (pc->annot_list)
fz_run_display_list(pc->annot_list, dev, ctm, bbox, NULL);
#ifdef TIME_DISPLAY_LIST
}
time = clock() - time;
LOGE("100 renders in %d (%d per sec)", time, CLOCKS_PER_SEC);
}
#endif
fz_free_device(dev);
dev = NULL;
fz_drop_pixmap(ctx, pix);
LOGE("Rendered");
}
fz_catch(ctx)
{
fz_free_device(dev);
LOGE("Render failed");
}
AndroidBitmap_unlockPixels(env, bitmap);
return 1;
}
JNIEXPORT jboolean JNICALL
JNI_FN(MuPDF_drawPage)(JNIEnv *env, jobject thiz, jobject bitmap,
int pageW, int pageH, int patchX, int patchY, int patchW, int patchH)
{
AndroidBitmapInfo info;
void *pixels;
int ret;
fz_device *dev = NULL;
float zoom;
fz_matrix ctm;
fz_irect bbox;
fz_rect rect;
fz_pixmap *pix = NULL;
float xscale, yscale;
globals *glo = get_globals(env, thiz);
fz_context *ctx = glo->ctx;
fz_document *doc = glo->doc;
page_cache *pc = &glo->pages[glo->current];
int hq = (patchW < pageW || patchH < pageH);
fz_matrix scale;
if (pc->page == NULL)
return 0;
fz_var(pix);
fz_var(dev);
LOGI("In native method\n");
if ((ret = AndroidBitmap_getInfo(env, bitmap, &info)) < 0) {
LOGE("AndroidBitmap_getInfo() failed ! error=%d", ret);
return 0;
}
LOGI("Checking format\n");
if (info.format != ANDROID_BITMAP_FORMAT_RGBA_8888) {
LOGE("Bitmap format is not RGBA_8888 !");
return 0;
}
LOGI("locking pixels\n");
if ((ret = AndroidBitmap_lockPixels(env, bitmap, &pixels)) < 0) {
LOGE("AndroidBitmap_lockPixels() failed ! error=%d", ret);
return 0;
}
/* Call mupdf to render display list to screen */
LOGE("Rendering page(%d)=%dx%d patch=[%d,%d,%d,%d]",
pc->number, pageW, pageH, patchX, patchY, patchW, patchH);
fz_try(ctx)
{
if (pc->page_list == NULL)
{
/* Render to list */
pc->page_list = fz_new_display_list(ctx);
dev = fz_new_list_device(ctx, pc->page_list);
fz_run_page_contents(doc, pc->page, dev, &fz_identity, NULL);
}
if (pc->annot_list == NULL)
{
fz_annot *annot;
if (dev)
{
fz_free_device(dev);
dev = NULL;
}
pc->annot_list = fz_new_display_list(ctx);
dev = fz_new_list_device(ctx, pc->annot_list);
for (annot = fz_first_annot(doc, pc->page); annot; annot = fz_next_annot(doc, annot))
fz_run_annot(doc, pc->page, annot, dev, &fz_identity, NULL);
}
bbox.x0 = patchX;
bbox.y0 = patchY;
bbox.x1 = patchX + patchW;
bbox.y1 = patchY + patchH;
pix = fz_new_pixmap_with_bbox_and_data(ctx, glo->colorspace, &bbox, pixels);
if (pc->page_list == NULL && pc->annot_list == NULL)
{
fz_clear_pixmap_with_value(ctx, pix, 0xd0);
break;
}
fz_clear_pixmap_with_value(ctx, pix, 0xff);
zoom = glo->resolution / 72;
fz_scale(&ctm, zoom, zoom);
rect = pc->media_box;
fz_round_rect(&bbox, fz_transform_rect(&rect, &ctm));
/* Now, adjust ctm so that it would give the correct page width
* heights. */
xscale = (float)pageW/(float)(bbox.x1-bbox.x0);
yscale = (float)pageH/(float)(bbox.y1-bbox.y0);
fz_concat(&ctm, &ctm, fz_scale(&scale, xscale, yscale));
rect = pc->media_box;
fz_transform_rect(&rect, &ctm);
dev = fz_new_draw_device(ctx, pix);
#ifdef TIME_DISPLAY_LIST
{
clock_t time;
int i;
LOGE("Executing display list");
time = clock();
for (i=0; i<100;i++) {
#endif
if (pc->page_list)
fz_run_display_list(pc->page_list, dev, &ctm, &rect, NULL);
if (pc->annot_list)
fz_run_display_list(pc->annot_list, dev, &ctm, &rect, NULL);
#ifdef TIME_DISPLAY_LIST
}
time = clock() - time;
LOGE("100 renders in %d (%d per sec)", time, CLOCKS_PER_SEC);
}
#endif
fz_free_device(dev);
dev = NULL;
fz_drop_pixmap(ctx, pix);
LOGE("Rendered");
}
fz_catch(ctx)
{
fz_free_device(dev);
LOGE("Render failed");
}
AndroidBitmap_unlockPixels(env, bitmap);
return 1;
}
QImage Pdf::page(int i)
{
fz_page* page = fz_load_page(doc, i);
if (page == 0) {
printf("cannot load page %d\n", i);
return QImage();
}
static const float resolution = 300.0;
const float zoom = resolution / 72.0;
fz_rect bounds = fz_bound_page(doc, page);
fz_matrix ctm = fz_scale(zoom, zoom);
fz_bbox bbox = fz_round_rect(fz_transform_rect(ctm, bounds));
fz_pixmap* pix = fz_new_pixmap_with_bbox(ctx, fz_device_gray, bbox);
fz_clear_pixmap_with_value(ctx, pix, 255);
fz_device* dev = fz_new_draw_device(ctx, pix);
fz_run_page(doc, page, dev, ctm, NULL);
fz_free_device(dev);
dev = NULL;
int w = fz_pixmap_width(ctx, pix);
int h = fz_pixmap_height(ctx, pix);
if (fz_pixmap_components(ctx, pix) != 2) {
printf("omg: pixmap not bw? %d\n", fz_pixmap_components(ctx, pix));
return QImage();
}
QImage image(w, h, QImage::Format_MonoLSB);
QVector<QRgb> ct(2);
ct[0] = qRgb(255, 255, 255);
ct[1] = qRgb(0, 0, 0);
image.setColorTable(ct);
uchar* s = fz_pixmap_samples(ctx, pix);
int bytes = w / 8;
int bits = w % 8;
for (int line = 0; line < h; ++line) {
uchar* d = image.scanLine(line);
for (int col = 0; col < bytes; ++col) {
uchar data = 0;
for (int i = 0; i < 8; ++i) {
uchar v = *s;
s += 2;
data >>= 1;
if (v < 128) { // convert grayscale to bw
data |= 0x80;
}
}
*d++ = data;
}
uchar data = 0;
for (int col = 0; col < bits; ++col) {
uchar v = *s;
s += 2;
data >>= 1;
if (v < 128)
data |= 0x80;
}
}
fz_drop_pixmap(ctx, pix);
return image;
}
DrPage * DrPDFExtractor::ExtractPage(unsigned int pageno)
{
fz_page * page = fz_load_page(m_doc, pageno);
if (page == NULL) {
return NULL;
}
DrPage * dpage = new DrPage;
dpage->SetPageNo(pageno);
std::list<DrChar *> charlist;
std::list<DrPhrase *> phraselist;
std::list<DrLine *> linelist;
std::list<DrZone *> &zonelist = dpage->m_zonelist;
fz_matrix transform;
fz_rotate(&transform,0);
fz_pre_scale(&transform, 1.0f, 1.0f);
fz_rect bounds;
fz_bound_page(m_doc, page, &bounds);
fz_transform_rect(&bounds, &transform);
fz_irect bbox;
fz_round_rect(&bbox, &bounds);
fz_matrix ttransform = transform;
fz_pixmap *pix = fz_new_pixmap_with_bbox(m_ctx, fz_device_rgb(m_ctx), &bbox);
fz_clear_pixmap_with_value(m_ctx, pix, 0xff);
fz_device * dev = fz_new_draw_device(m_ctx,pix);
fz_run_page(m_doc, page, dev, &transform, NULL);
fz_free_device(dev);
fz_text_sheet * sheet = fz_new_text_sheet(m_ctx);
fz_text_page * tpage = fz_new_text_page(m_ctx);
fz_device * cdev = fz_new_text_device(m_ctx, sheet, tpage);
fz_run_page(m_doc, page, cdev, &ttransform, NULL);
ExtractChars(charlist,tpage);
fz_free_device(cdev);
// DrThumbnail * thumb = new DrThumbnail(m_ctx,pix,pageno);
// dpage->m_thumbnail = thumb;
DrTextGrouper::TextGroup(phraselist, charlist);
std::list<DrPhrase *>::iterator itphrase = phraselist.begin();
while (itphrase != phraselist.end()) {
if ((*itphrase)->IsSpacePhrase()) {
delete *itphrase;
itphrase = phraselist.erase(itphrase);
}
else itphrase++;
}
DrTextGrouper::TextGroup(linelist, phraselist);
DrTextGrouper::TextGroup(zonelist, linelist);
dpage->CalculatePageBox();
// fz_free_text_sheet(m_ctx, tsheet);
// fz_free_text_page(m_ctx, tpage);
fz_free_page(m_doc, page);
return dpage;
}
HRESULT MuPDFDoc::DrawPage(unsigned char *bitmap, int x, int y, int width, int height, bool invert)
{
m_cts->abort = 0;
fz_device *dev = nullptr;
fz_pixmap *pixmap = nullptr;
fz_var(dev);
fz_var(pixmap);
PageCache *pageCache = &m_pages[m_currentPage];
fz_try(m_context)
{
fz_interactive *idoc = fz_interact(m_document);
// Call fz_update_page now to ensure future calls yield the
// changes from the current state
if (idoc)
fz_update_page(idoc, pageCache->page);
if (!pageCache->pageList)
{
/* Render to list */
pageCache->pageList = fz_new_display_list(m_context);
dev = fz_new_list_device(m_context, pageCache->pageList);
fz_run_page_contents(m_document, pageCache->page, dev, fz_identity, *&m_cts);
}
if (!pageCache->annotList)
{
if (dev)
{
fz_free_device(dev);
dev = nullptr;
}
pageCache->annotList = fz_new_display_list(m_context);
dev = fz_new_list_device(m_context, pageCache->annotList);
for (fz_annot *annot = fz_first_annot(m_document, pageCache->page); annot; annot = fz_next_annot(m_document, annot))
fz_run_annot(m_document, pageCache->page, annot, dev, fz_identity, *&m_cts);
}
fz_bbox rect;
rect.x0 = x;
rect.y0 = y;
rect.x1 = x + width;
rect.y1 = y + height;
pixmap = fz_new_pixmap_with_bbox_and_data(m_context, fz_device_bgr, rect, bitmap);
if (!pageCache->pageList && !pageCache->annotList)
{
fz_clear_pixmap_with_value(m_context, pixmap, 0xd0);
break;
}
fz_clear_pixmap_with_value(m_context, pixmap, 0xff);
//
fz_matrix ctm = CalcConvertMatrix();
fz_bbox bbox = fz_round_rect(fz_transform_rect(ctm, pageCache->mediaBox));
/* Now, adjust ctm so that it would give the correct page width
* heights. */
float xscale = (float)width/(float)(bbox.x1-bbox.x0);
float yscale = (float)height/(float)(bbox.y1-bbox.y0);
ctm = fz_concat(ctm, fz_scale(xscale, yscale));
bbox = fz_round_rect(fz_transform_rect(ctm, pageCache->mediaBox));
if (dev)
{
fz_free_device(dev);
dev = nullptr;
}
dev = fz_new_draw_device(m_context, pixmap);
if (pageCache->pageList)
fz_run_display_list(pageCache->pageList, dev, ctm, bbox, *&m_cts);
about = m_cts->abort;
if (pageCache->annotList)
fz_run_display_list(pageCache->annotList, dev, ctm, bbox, *&m_cts);
if (invert)
fz_invert_pixmap(m_context, pixmap);
}
fz_always(m_context)
{
if (dev)
{
fz_free_device(dev);
dev = nullptr;
}
if (pixmap)
{
fz_drop_pixmap(m_context, pixmap);
}
}
fz_catch(m_context)
{
return E_FAIL;
}
return S_OK;
}
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);
}
JNIEXPORT jboolean JNICALL
Java_com_artifex_mupdf_MuPDFCore_drawPage(JNIEnv *env, jobject thiz, jobject bitmap,
int pageW, int pageH, int patchX, int patchY, int patchW, int patchH)
{
AndroidBitmapInfo info;
void *pixels;
int ret;
fz_device *dev = NULL;
float zoom;
fz_matrix ctm;
fz_bbox bbox;
fz_pixmap *pix = NULL;
float xscale, yscale;
fz_bbox rect;
fz_var(pix);
fz_var(dev);
LOGI("In native method\n");
if ((ret = AndroidBitmap_getInfo(env, bitmap, &info)) < 0) {
LOGE("AndroidBitmap_getInfo() failed ! error=%d", ret);
return 0;
}
LOGI("Checking format\n");
if (info.format != ANDROID_BITMAP_FORMAT_RGBA_8888) {
LOGE("Bitmap format is not RGBA_8888 !");
return 0;
}
LOGI("locking pixels\n");
if ((ret = AndroidBitmap_lockPixels(env, bitmap, &pixels)) < 0) {
LOGE("AndroidBitmap_lockPixels() failed ! error=%d", ret);
return 0;
}
/* Call mupdf to render display list to screen */
LOGE("Rendering page=%dx%d patch=[%d,%d,%d,%d]",
pageW, pageH, patchX, patchY, patchW, patchH);
fz_try(ctx)
{
rect.x0 = patchX;
rect.y0 = patchY;
rect.x1 = patchX + patchW;
rect.y1 = patchY + patchH;
pix = fz_new_pixmap_with_rect_and_data(ctx, colorspace, rect, pixels);
if (currentPageList == NULL)
{
fz_clear_pixmap_with_value(pix, 0xd0);
break;
}
fz_clear_pixmap_with_value(pix, 0xff);
zoom = resolution / 72;
ctm = fz_scale(zoom, zoom);
bbox = fz_round_rect(fz_transform_rect(ctm,currentMediabox));
/* Now, adjust ctm so that it would give the correct page width
* heights. */
xscale = (float)pageW/(float)(bbox.x1-bbox.x0);
yscale = (float)pageH/(float)(bbox.y1-bbox.y0);
ctm = fz_concat(ctm, fz_scale(xscale, yscale));
bbox = fz_round_rect(fz_transform_rect(ctm,currentMediabox));
dev = fz_new_draw_device(ctx, pix);
#ifdef TIME_DISPLAY_LIST
{
clock_t time;
int i;
LOGE("Executing display list");
time = clock();
for (i=0; i<100;i++) {
#endif
fz_run_display_list(currentPageList, dev, ctm, bbox, NULL);
#ifdef TIME_DISPLAY_LIST
}
time = clock() - time;
LOGE("100 renders in %d (%d per sec)", time, CLOCKS_PER_SEC);
}
#endif
fz_free_device(dev);
dev = NULL;
fz_drop_pixmap(ctx, pix);
LOGE("Rendered");
}
fz_catch(ctx)
{
fz_free_device(dev);
LOGE("Render failed");
}
AndroidBitmap_unlockPixels(env, bitmap);
return 1;
}
HRESULT MuPDFDoc::Renderer(Data *data, int part, int numParts)
{
if (m_cts->abort == 1) return S_OK;
int pagenumber = data->pagenumber;
fz_context *ctx = data->ctx;
fz_display_list *list = data->list;
fz_display_list *annotList = data->annotList;
fz_rect rect = data->rect;
fz_pixmap *pix = data->pix;
fz_device *dev = nullptr;
int width = data->width;
int height = data->height / numParts;
// The context pointer is pointing to the main thread's
// context, so here we create a new context based on it for
// use in this thread.
ctx = fz_clone_context(ctx);
fz_try(ctx)
{
if (part == 1 && numParts == 2)
{
rect.y1 = rect.y1/2;
}
if (part == 2 && numParts == 2)
{
rect.y0 = rect.y1/2;
}
fz_matrix ctm = CalcConvertMatrix();
fz_bbox bbox = fz_round_rect(fz_transform_rect(ctm, rect));
/* Now, adjust ctm so that it would give the correct page width
* heights. */
float xscale = (float)width/(float)(bbox.x1-bbox.x0);
float yscale = (float)height/(float)(bbox.y1-bbox.y0);
ctm = fz_concat(ctm, fz_scale(xscale, yscale));
bbox = fz_round_rect(fz_transform_rect(ctm, rect));
dev = fz_new_draw_device(ctx, pix);
if (list)
fz_run_display_list(list, dev, ctm, bbox, *&m_cts);
if (m_cts->abort == 1) break;
if (annotList)
fz_run_display_list(annotList, dev, ctm, bbox, *&m_cts);
}
fz_always(ctx)
{
if (dev)
{
fz_free_device(dev);
dev = nullptr;
}
if (pix)
{
fz_drop_pixmap(m_context, pix);
}
}
fz_catch(ctx)
{
return E_FAIL;
}
fz_free_context(ctx);
return S_OK;
}