diff options
author | Paul Gardiner <paul.gardiner@artifex.com> | 2013-10-01 12:07:52 +0100 |
---|---|---|
committer | Paul Gardiner <paul.gardiner@artifex.com> | 2013-10-02 12:57:55 +0100 |
commit | 7dacbb542aa870d81f9d5285904481ae6004fa18 (patch) | |
tree | e8d2f1457759dc872838a48f26a8ce6eca18afe7 /platform/ios/Classes | |
parent | 6a6284ddfa453f909ba6576b85166b7cf26941ee (diff) | |
download | mupdf-7dacbb542aa870d81f9d5285904481ae6004fa18.tar.xz |
iOS: Introduce use of display lists
Also add exception handling around library calls
Diffstat (limited to 'platform/ios/Classes')
-rw-r--r-- | platform/ios/Classes/MuPageViewNormal.h | 2 | ||||
-rw-r--r-- | platform/ios/Classes/MuPageViewNormal.m | 190 |
2 files changed, 148 insertions, 44 deletions
diff --git a/platform/ios/Classes/MuPageViewNormal.h b/platform/ios/Classes/MuPageViewNormal.h index 1bd626fd..542237ec 100644 --- a/platform/ios/Classes/MuPageViewNormal.h +++ b/platform/ios/Classes/MuPageViewNormal.h @@ -22,6 +22,8 @@ MuDocRef *docRef; fz_document *doc; fz_page *page; + fz_display_list *page_list; + fz_display_list *annot_list; int number; UIActivityIndicatorView *loadingView; UIImageView *imageView; diff --git a/platform/ios/Classes/MuPageViewNormal.m b/platform/ios/Classes/MuPageViewNormal.m index 8cec8f02..fb03756d 100644 --- a/platform/ios/Classes/MuPageViewNormal.m +++ b/platform/ios/Classes/MuPageViewNormal.m @@ -7,16 +7,6 @@ #include "common.h" -static CGSize measurePage(fz_document *doc, fz_page *page) -{ - CGSize pageSize; - fz_rect bounds; - fz_bound_page(doc, page, &bounds); - pageSize.width = bounds.x1 - bounds.x0; - pageSize.height = bounds.y1 - bounds.y0; - return pageSize; -} - static void releasePixmap(void *info, const void *data, size_t size) { if (queue) @@ -47,40 +37,105 @@ static UIImage *newImageWithPixmap(fz_pixmap *pix) return image; } -static UIImage *renderPage(fz_document *doc, fz_page *page, CGSize screenSize) +static fz_display_list *create_page_list(fz_document *doc, fz_page *page) +{ + fz_display_list *list; + fz_device *dev = NULL; + + fz_var(dev); + fz_try(ctx) + { + list = fz_new_display_list(ctx); + dev = fz_new_list_device(ctx, list); + fz_run_page_contents(doc, page, dev, &fz_identity, NULL); + } + fz_always(ctx) + { + fz_free_device(dev); + } + fz_catch(ctx) + { + return NULL; + } + + return list; +} + +static fz_display_list *create_annot_list(fz_document *doc, fz_page *page) +{ + fz_display_list *list; + fz_device *dev = NULL; + + fz_var(dev); + fz_try(ctx) + { + fz_annot *annot; + + list = fz_new_display_list(ctx); + dev = fz_new_list_device(ctx, list); + for (annot = fz_first_annot(doc, page); annot; annot = fz_next_annot(doc, annot)) + fz_run_annot(doc, page, annot, dev, &fz_identity, NULL); + } + fz_always(ctx) + { + fz_free_device(dev); + } + fz_catch(ctx) + { + return NULL; + } + + return list; +} + +static UIImage *renderPage(fz_document *doc, fz_display_list *page_list, fz_display_list *annot_list, CGSize pageSize, CGSize screenSize) { - CGSize pageSize; fz_irect bbox; + fz_rect rect; fz_matrix ctm; - fz_device *dev; - fz_pixmap *pix; + fz_device *dev = NULL; + fz_pixmap *pix = NULL; CGSize scale; screenSize.width *= screenScale; screenSize.height *= screenScale; - pageSize = measurePage(doc, page); scale = fitPageToScreen(pageSize, screenSize); fz_scale(&ctm, scale.width, scale.height); bbox = (fz_irect){0, 0, pageSize.width * scale.width, pageSize.height * scale.height}; - - pix = fz_new_pixmap_with_bbox(ctx, fz_device_rgb(ctx), &bbox); - fz_clear_pixmap_with_value(ctx, pix, 255); - - dev = fz_new_draw_device(ctx, pix); - fz_run_page(doc, page, dev, &ctm, NULL); - fz_free_device(dev); + fz_rect_from_irect(&rect, &bbox); + + fz_var(dev); + fz_var(pix); + fz_try(ctx) + { + pix = fz_new_pixmap_with_bbox(ctx, fz_device_rgb(ctx), &bbox); + fz_clear_pixmap_with_value(ctx, pix, 255); + + dev = fz_new_draw_device(ctx, pix); + fz_run_display_list(page_list, dev, &ctm, &rect, NULL); + fz_run_display_list(annot_list, dev, &ctm, &rect, NULL); + } + fz_always(ctx) + { + fz_free_device(dev); + } + fz_catch(ctx) + { + fz_drop_pixmap(ctx, pix); + return nil; + } return newImageWithPixmap(pix); } -static UIImage *renderTile(fz_document *doc, fz_page *page, CGSize screenSize, CGRect tileRect, float zoom) +static UIImage *renderTile(fz_document *doc, fz_display_list *page_list, fz_display_list *annot_list, CGSize pageSize, CGSize screenSize, CGRect tileRect, float zoom) { - CGSize pageSize; fz_irect bbox; + fz_rect rect; fz_matrix ctm; - fz_device *dev; - fz_pixmap *pix; + fz_device *dev = NULL; + fz_pixmap *pix = NULL; CGSize scale; screenSize.width *= screenScale; @@ -90,7 +145,6 @@ static UIImage *renderTile(fz_document *doc, fz_page *page, CGSize screenSize, C tileRect.size.width *= screenScale; tileRect.size.height *= screenScale; - pageSize = measurePage(doc, page); scale = fitPageToScreen(pageSize, screenSize); fz_scale(&ctm, scale.width * zoom, scale.height * zoom); @@ -98,13 +152,28 @@ static UIImage *renderTile(fz_document *doc, fz_page *page, CGSize screenSize, C bbox.y0 = tileRect.origin.y; bbox.x1 = tileRect.origin.x + tileRect.size.width; bbox.y1 = tileRect.origin.y + tileRect.size.height; - - pix = fz_new_pixmap_with_bbox(ctx, fz_device_rgb(ctx), &bbox); - fz_clear_pixmap_with_value(ctx, pix, 255); - - dev = fz_new_draw_device(ctx, pix); - fz_run_page(doc, page, dev, &ctm, NULL); - fz_free_device(dev); + fz_rect_from_irect(&rect, &bbox); + + fz_var(dev); + fz_var(pix); + fz_try(ctx) + { + pix = fz_new_pixmap_with_bbox(ctx, fz_device_rgb(ctx), &bbox); + fz_clear_pixmap_with_value(ctx, pix, 255); + + dev = fz_new_draw_device(ctx, pix); + fz_run_display_list(page_list, dev, &ctm, &rect, NULL); + fz_run_display_list(annot_list, dev, &ctm, &rect, NULL); + } + fz_always(ctx) + { + fz_free_device(dev); + } + fz_catch(ctx) + { + fz_drop_pixmap(ctx, pix); + return nil; + } return newImageWithPixmap(pix); } @@ -113,6 +182,38 @@ static UIImage *renderTile(fz_document *doc, fz_page *page, CGSize screenSize, C @implementation MuPageViewNormal +- (void) ensurePageLoaded +{ + if (page) + return; + + fz_try(ctx) + { + fz_rect bounds; + page = fz_load_page(doc, number); + fz_bound_page(doc, page, &bounds); + pageSize.width = bounds.x1 - bounds.x0; + pageSize.height = bounds.y1 - bounds.y0; + } + fz_catch(ctx) + { + return; + } +} + +- (void) ensureDisplaylists +{ + [self ensurePageLoaded]; + if (!page) + return; + + if (!page_list) + page_list = create_page_list(doc, page); + + if (!annot_list) + annot_list = create_annot_list(doc, page); +} + - (id) initWithFrame: (CGRect)frame document: (MuDocRef *)aDoc page: (int)aNumber { self = [super initWithFrame: frame]; @@ -152,9 +253,15 @@ static UIImage *renderTile(fz_document *doc, fz_page *page, CGSize screenSize, C __block id block_self = self; // don't auto-retain self! dispatch_async(dispatch_get_main_queue(), ^{ [block_self dealloc]; }); } else { + __block fz_display_list *block_page_list = page_list; + __block fz_display_list *block_annot_list = annot_list; __block fz_page *block_page = page; __block fz_document *block_doc = docRef->doc; dispatch_async(queue, ^{ + if (block_page_list) + fz_drop_display_list(ctx, block_page_list); + if (block_annot_list) + fz_drop_display_list(ctx, block_annot_list); if (block_page) fz_free_page(block_doc, block_page); block_page = nil; @@ -178,8 +285,7 @@ static UIImage *renderTile(fz_document *doc, fz_page *page, CGSize screenSize, C { if (!linkView) { dispatch_async(queue, ^{ - if (!page) - page = fz_load_page(doc, number); + [self ensurePageLoaded]; fz_link *links = fz_load_links(doc, page); dispatch_async(dispatch_get_main_queue(), ^{ linkView = [[MuHitView alloc] initWithLinks: links forDocument: doc]; @@ -256,12 +362,9 @@ static UIImage *renderTile(fz_document *doc, fz_page *page, CGSize screenSize, C dispatch_async(queue, ^{ if (!cancel) { printf("render page %d\n", number); - if (!page) - page = fz_load_page(doc, number); - CGSize size = measurePage(doc, page); - UIImage *image = renderPage(doc, page, self.bounds.size); + [self ensureDisplaylists]; + UIImage *image = renderPage(doc, page_list, annot_list, pageSize, self.bounds.size); dispatch_async(dispatch_get_main_queue(), ^{ - pageSize = size; [self displayImage: image]; [image release]; }); @@ -399,11 +502,10 @@ static UIImage *renderTile(fz_document *doc, fz_page *page, CGSize screenSize, C return; } - if (!page) - page = fz_load_page(doc, number); + [self ensureDisplaylists]; printf("render tile\n"); - UIImage *image = renderTile(doc, page, screenSize, viewFrame, scale); + UIImage *image = renderTile(doc, page_list, annot_list, pageSize, screenSize, viewFrame, scale); dispatch_async(dispatch_get_main_queue(), ^{ isValid = CGRectEqualToRect(frame, tileFrame) && scale == tileScale; |