Added option to store images in cache as flattened archived BBitmaps
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3895 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Michael Pfeiffer
parent
281b14ed54
commit
ad3b616b82
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/*
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Image Cache Item.
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Copyright (c) 2003 OpenBeOS.
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Author:
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Michael Pfeiffer
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <unistd.h>
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#include <sys/stat.h>
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#include <File.h>
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#include <Translator.h>
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#include <TranslationUtils.h>
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#include <TranslatorRoster.h>
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#include <BitmapStream.h>
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#include <Debug.h>
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#include "Report.h"
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#include "Image.h"
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#include "ImageCache.h"
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// Implementation of ImageDescription
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ImageDescription::ImageDescription(PDF* pdf, BBitmap* bitmap, int mask)
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: fPDF(pdf)
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, fBitmap(bitmap)
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, fMask(mask)
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{
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bitmap->Lock();
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fWidth = bitmap->Bounds().IntegerWidth()+1;
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fHeight = bitmap->Bounds().IntegerHeight()+1;
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fColorSpace = bitmap->ColorSpace();
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bitmap->Unlock();
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}
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CacheItem* ImageDescription::NewItem(int id) {
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REPORT(kDebug, -1, "ImageDescription::NewItem %d", id);
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Image* image = Store(fPDF, id, fBitmap, fMask);
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if (image == NULL) {
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REPORT(kDebug, -1, "Could not store image in cache!");
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}
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}
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Image* ImageDescription::Store(PDF* pdf, int id, BBitmap* bitmap, int mask) {
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BString fileName(kImagePathPrefix);
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BString pdfFileName;
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int w, h;
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color_space cs;
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fileName << id;
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pdfFileName = fileName;
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pdfFileName << ".png";
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bitmap->Lock();
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w = bitmap->Bounds().IntegerWidth()+1;
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h = bitmap->Bounds().IntegerHeight()+1;
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cs = bitmap->ColorSpace();
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bitmap->Unlock();
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#if STORE_AS_BBITMAP
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fileName << ".bitmap";
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#else
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fileName << ".png";
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#endif
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if (!StorePNG(pdfFileName.String(), bitmap)) {
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REPORT(kError, -1, "Image cache could not store image as PNG file.");
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return NULL;
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}
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if (!StoreBitmap(fileName.String(), bitmap)) {
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REPORT(kError, -1, "Image cache could not store image as flattend BBitmap.");
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unlink(pdfFileName.String());
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return NULL;
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}
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int image;
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image = PDF_open_image_file(pdf, "png", pdfFileName.String(),
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mask == -1 ? "" : "masked", mask == -1 ? 0 : mask);
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#if STORE_AS_BBITMAP
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unlink(pdfFileName.String());
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#endif
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if (image < 0) {
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REPORT(kError, -1, "Image cache could not embed image.");
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return NULL;
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}
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return new Image(pdf, image, fileName.String(), w, h, cs, mask);
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}
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bool ImageDescription::StorePNG(const char* fileName, BBitmap* bitmap) {
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bool ok = true;
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BTranslatorRoster *roster = BTranslatorRoster::Default();
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BBitmapStream stream(bitmap); // init with contents of bitmap
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BFile file(fileName, B_CREATE_FILE | B_WRITE_ONLY | B_ERASE_FILE);
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ok = roster->Translate(&stream, NULL, NULL, &file, B_PNG_FORMAT) == B_OK;
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BBitmap *bm = NULL; stream.DetachBitmap(&bm); // otherwise bitmap destructor crashes here!
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ASSERT(bm == bitmap);
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return ok;
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}
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bool ImageDescription::StoreBitmap(const char* fileName, BBitmap* bitmap) {
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bool ok = true;
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#if STORE_AS_BBITMAP
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BMessage msg;
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BFile file(fileName, B_WRITE_ONLY | B_CREATE_FILE | B_ERASE_FILE);
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ok = file.InitCheck() == B_OK && bitmap->Archive(&msg) == B_OK && msg.Flatten(&file) == B_OK;
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#endif
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return ok;
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}
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// Implementation of Image
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Image::Image(PDF* pdf, int imageID, const char* fileName, int width, int height, color_space colorSpace, int mask)
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: fPDF(pdf)
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, fImageID(imageID)
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, fFileName(fileName)
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, fWidth(width)
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, fHeight(height)
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, fColorSpace(colorSpace)
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, fMask(mask)
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{
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}
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Image::~Image() {
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PDF_close_image(fPDF, ImageID());
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unlink(FileName());
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}
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bool Image::Equals(CIDescription* description) const {
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REPORT(kDebug, -1, "Image::Equals called.");
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ImageDescription* desc = dynamic_cast<ImageDescription*>(description);
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ASSERT(desc != NULL);
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if (desc->Width() != Width() || desc->Height() != Height() ||
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desc->ColorSpace() != ColorSpace() ||
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desc->Mask() != Mask()) return false;
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return Equals(desc->Bitmap());
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}
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bool Image::Equals(BBitmap* bitmap) const {
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REPORT(kDebug, -1, "Image::Equals called.");
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bool equals = false;
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BBitmap* bm = NULL;
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#if STORE_AS_BBITMAP
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BMessage msg;
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BFile file(FileName(), B_READ_ONLY);
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if (file.InitCheck() == B_OK && msg.Unflatten(&file) == B_OK) {
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BArchivable* a = BBitmap::Instantiate(&msg);
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bm = dynamic_cast<BBitmap*>(a);
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if (bm == NULL && a != NULL) delete a;
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}
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#else
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bm = BTranslationUtils::GetBitmapFile(FileName());
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#endif
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if (bm) {
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bm->Lock();
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bitmap->Lock();
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equals = bm->BitsLength() == bitmap->BitsLength() &&
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bm->ColorSpace() == bitmap->ColorSpace() &&
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memcmp(bm->Bits(), bitmap->Bits(), bm->BitsLength()) == 0;
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bitmap->Unlock();
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bm->Unlock();
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delete bm;
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} else {
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REPORT(kError, -1, "Could not load image from cache!");
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}
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return equals;
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}
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@ -0,0 +1,91 @@
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/*
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Image Cache Item.
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Copyright (c) 2003 OpenBeOS.
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Author:
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Michael Pfeiffer
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef _IMAGE_CACHE_ITEM_H
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#define _IMAGE_CACHE_ITEM_H
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#include "pdflib.h"
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#include <Bitmap.h>
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#include "pdflib.h"
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#include "Utils.h"
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#include "Cache.h"
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class Image;
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class ImageDescription : public CIDescription {
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public:
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ImageDescription(PDF* pdf, BBitmap* bitmap, int mask);
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CacheItem* NewItem(int id);
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BBitmap* Bitmap() { return fBitmap; }
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int Width() const { return fWidth; }
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int Height() const { return fHeight; }
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color_space ColorSpace() const { return fColorSpace; }
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int Mask() const { return fMask; }
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private:
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Image* Store(PDF* pdf, int id, BBitmap* bitmap, int mask);
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bool StoreBitmap(const char* fileName, BBitmap* bitmap);
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bool StorePNG(const char* fileName, BBitmap* bitmap);
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PDF* fPDF;
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BBitmap* fBitmap;
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int fWidth, fHeight;
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color_space fColorSpace;
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int fMask;
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};
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class Image : public CacheItem {
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public:
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Image(PDF* pdf, int imageID, const char* fileName, int width, int height, color_space colorSpace, int mask);
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~Image();
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int ImageID() const { return fImageID; };
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const char* FileName() const { return fFileName.String(); };
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int Width() const { return fWidth; };
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int Height() const { return fHeight; };
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color_space ColorSpace() const { return fColorSpace; };
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int Mask() const { return fMask; };
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bool Equals(CIDescription* desc) const;
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bool Equals(BBitmap* bitmap) const;
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private:
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PDF* fPDF;
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int fImageID;
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BString fFileName;
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int fWidth, fHeight;
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color_space fColorSpace;
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int fMask;
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};
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#endif
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