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_error error; fz_device *dev; float zoom; fz_matrix ctm; fz_bbox bbox; fz_pixmap *pix; float xscale, yscale; 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); pix = fz_newpixmapwithdata(colorspace, patchX, patchY, patchW, patchH, pixels); if (currentPageList == NULL) { fz_clearpixmapwithcolor(pix, 0xd0); return 0; } fz_clearpixmapwithcolor(pix, 0xff); zoom = resolution / 72; ctm = fz_translate(0, -currentMediabox.y1); ctm = fz_concat(ctm, fz_scale(zoom, -zoom)); ctm = fz_concat(ctm, fz_rotate(currentRotate)); bbox = fz_roundrect(fz_transformrect(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)); dev = fz_newdrawdevice(glyphcache, pix); fz_executedisplaylist(currentPageList, dev, ctm); fz_freedevice(dev); fz_droppixmap(pix); LOGE("Rendered"); AndroidBitmap_unlockPixels(env, bitmap); return 1; }
static void pdfapp_showpage(pdfapp_t *app, int loadpage, int drawpage) { char buf[256]; fz_error error; fz_device *idev, *tdev, *mdev; fz_displaylist *list; fz_matrix ctm; fz_bbox bbox; fz_obj *obj; if (loadpage) { wincursor(app, WAIT); if (app->page) pdf_droppage(app->page); app->page = nil; //code change by kakai kno_clearselect(app); //code change by kakai pdf_flushxref(app->xref, 0); obj = pdf_getpageobject(app->xref, app->pageno); error = pdf_loadpage(&app->page, app->xref, obj); if (error) pdfapp_error(app, error); sprintf(buf, "%s - %d/%d", app->doctitle, app->pageno, app->pagecount); wintitle(app, buf); } if (drawpage) { wincursor(app, WAIT); ctm = pdfapp_viewctm(app); bbox = fz_roundrect(fz_transformrect(ctm, app->page->mediabox)); list = fz_newdisplaylist(); mdev = fz_newlistdevice(list); error = pdf_runcontentstream(mdev, fz_identity(), app->xref, app->page->resources, app->page->contents); if (error) pdfapp_error(app, error); fz_freedevice(mdev); if (app->image) fz_droppixmap(app->image); app->image = fz_newpixmapwithrect(pdf_devicergb, bbox); fz_clearpixmap(app->image, 0xFF); idev = fz_newdrawdevice(app->cache, app->image); fz_executedisplaylist(list, idev, ctm); fz_freedevice(idev); if (app->text) fz_freetextspan(app->text); app->text = fz_newtextspan(); tdev = fz_newtextdevice(app->text); fz_executedisplaylist(list, tdev, ctm); fz_freedevice(tdev); fz_freedisplaylist(list); //code change by kakai kno_allocselection(app); kno_applyselect(app); //code change by kakai winconvert(app, app->image); } 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); }