23687 2009-02-02 11:29:21 -0800 ImageBuffer::toDataURL not implemented for Skia 2009-02-10 00:23:04 -0800 1 1 1 Unclassified WebKit WebCore Misc. 528+ (Nightly build) PC OS X 10.5 RESOLVED FIXED P2 Normal --- 1 sky sky brettw dglazkov oldest_to_newest 107987 0 sky 2009-02-02 11:29:21 -0800 At a minimum Skia should support PNG conversion. 107990 1 27250 sky 2009-02-02 11:34:16 -0800 Created attachment 27250 Fix for 23687 107992 2 27250 eric 2009-02-02 11:50:07 -0800 Comment on attachment 27250 Fix for 23687 The chromium license headers make little sense in the WebKit tree. Also, the code from Mozilla is in Google style, not WebKIt style (at least in function naming), and it seems it's so litlte code we should just fix the style. 108004 3 sky 2009-02-02 12:33:23 -0800 *** Bug 23692 has been marked as a duplicate of this bug. *** 108006 4 27254 sky 2009-02-02 12:35:41 -0800 Created attachment 27254 Fix for 23687 Converts names to WebKit style and fixes license. 108008 5 27254 fishd 2009-02-02 12:41:53 -0800 Comment on attachment 27254 Fix for 23687 some drive-by comments... >Index: WebCore/platform/graphics/skia/ImageBufferSkia.cpp >+ WTF::Vector<unsigned char> pngEncodedData; It is more common to not specify the WTF:: namespace. There is a using WTF::Vector at the bottom of Vector.h. >Index: WebCore/platform/image-encoders/skia/PNGImageEncoder.cpp ... >+/* >+* Copyright (c) 2006-2009, Google Inc. All rights reserved. >+* nit: comment block needs to be indented by one space needs #include "config.h" at the top. >+ >+#include "PNGImageEncoder.h" >+#include "Vector.h" >+namespace WebCore { >+ >+namespace { nit: the convention in webcore seems to be to use the 'static' keyword instead of anonymous namespaces. >+ >+// Converts BGRA->RGBA and RGBA->BGRA. >+void convertBetweenBGRAandRGBA(const unsigned char* input, int pixel_width, so this would stay in the WebCore namespace but be given a 'static' keyword >+namespace { >+ >+// Passed around as the io_ptr in the png structs so our callbacks know where >+// to write data. >+struct PngEncoderState { and then for structs like this they just put them in the WebCore namespace. since you have the Png prefix, you shouldn't have to worry about name conflicts. >Index: WebCore/platform/image-encoders/skia/PNGImageEncoder.h ... >+/* >+* Copyright (c) 2006-2009, Google Inc. All rights reserved. >+* nit: needs another space of indent >+}; // namespace WebCore nit: extraneous ';' at close of namespace 108015 6 27256 sky 2009-02-02 12:59:13 -0800 Created attachment 27256 Fix for 23687 Incorporates changes from Darin. 108019 7 27254 eric 2009-02-02 13:03:22 -0800 Comment on attachment 27254 Fix for 23687 pixel_width should be pixelWidth Since we seem to use PNGFoo we should use: PngEncoderState PNGEncoderState int w, int h should be int width int height, or even better an IntSize. New functions generally use the IntSize/IntPoint types, we've been slowly converting the old ones over. If it doesn't make sense for this function to use IntSize, that's fine, but I figured it should at least be mentioned. (Skia doesn't spit out IntSize objects, so it's probably easiest to keep using separate ints for Skia.) Likewise bytes_per_row bytesPerRow We should give these good names: 99 png_struct** m_ps; 100 png_info** m_pi; m_pngStruct; m_pngInfo; would be more clear, even though the original libpng type names are pretty useless to begin with. WebKit uses 0 instead of NULL: 127 void (*converter)(const unsigned char* in, int w, unsigned char* out) = NULL; Seems silly to have a converter local variable, instead of just using convertBetweenBGRAandRGBA in the one place it's actually needed. If ints are not required by libpng (which they may be), you might consider using size_t or unsigned for these width/height values (unless you need a special -1 value?) this is in general pretty gnarly code. But that seems to be libpng's fault rather than yours. I'd like to see a final version of this patch, but otherwise this looks sane enough. 108035 8 27259 sky 2009-02-02 14:04:13 -0800 Created attachment 27259 Fix for 23687 Addresses issues raised in last round. I went with IntSize. 108047 9 27259 eric 2009-02-02 15:30:10 -0800 Comment on attachment 27259 Fix for 23687 46 static void convertBetweenBGRAandRGBA(const unsigned char* input, int pixelWidth, Having read the rest of your code, I understand what pixelWidth means, but I think numberOfPixels would be clearer in the local context of that function. Still has WTF::, which can be removed per darin's comment. PngWriteStructDestroyer should be PNGWriteStructDestroyer to match PNGImageEncoder likewise PngEncoderState should be PNGEncoderState You could actually use an OwnArrayPtr here: 162 unsigned char* row = new unsigned char[imageSize.width() * outputColorComponents]; OwnArrayPtr<unsigned char> rowPixels(new unsigned char[width * height]); I'm not sure it's super-useful here, but it does save you the delete[] at the end (which is more useful when there is lots of code in between the initialization and the delete). Thanks for all your corrections. I'm ready to land this for you after this last round of nits. 108056 10 27265 sky 2009-02-02 16:25:47 -0800 Created attachment 27265 Fix for 23687 108448 11 dglazkov 2009-02-05 09:12:54 -0800 Eric, if you r+, I'll land. 108493 12 27265 eric 2009-02-05 13:05:32 -0800 Comment on attachment 27265 Fix for 23687 Looks good. Thanks. 109096 13 fishd 2009-02-10 00:23:04 -0800 Looks like this patch was landed: http://trac.webkit.org/changeset/40692 27250 2009-02-02 11:34:16 -0800 2009-02-02 12:36:51 -0800 Fix for 23687 23687.patch text/plain 10902 sky SW5kZXg6IFdlYkNvcmUvQ2hhbmdlTG9nCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIFdlYkNvcmUvQ2hhbmdlTG9n CShyZXZpc2lvbiA0MDQ4MSkKKysrIFdlYkNvcmUvQ2hhbmdlTG9nCSh3b3JraW5nIGNvcHkpCkBA IC0xLDMgKzEsMjYgQEAKKzIwMDktMDItMDIgIFNjb3R0IFZpb2xldCAgPHNreUBnb29nbGUuY29t PgorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgIEZpeGVz IGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0yMzY4NworCisgICAgICAg IFdpcmVzIHVwIFNraWEnYSBJbWFnZUJ1ZmZlcjo6dG9EYXRhVVJMIHRvIHN1cHBvcnQgcG5ncy4K KworICAgICAgICBUaGlzIGhlbHBzIENocm9taXVtIHBhc3MgYSBjb3VwbGUgb2YgbGF5b3V0IHRl c3RzLgorCisgICAgICAgICogcGxhdGZvcm0vZ3JhcGhpY3Mvc2tpYS9JbWFnZUJ1ZmZlclNraWEu Y3BwOgorICAgICAgICAoV2ViQ29yZTo6SW1hZ2VCdWZmZXI6OnRvRGF0YVVSTCk6CisgICAgICAg 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