of points in a quadratic curve is within +/- 2x the value determined by the
previous expensive method.
Running a similar approximation method on the Guimark2 HTML5 Charting demo drops
the share of time spent in SkPoint::distanceToLineSegmentBetweenSqd() from 4.57%
to under 0.6%, although SkPath::Iter::next(), SkPath::lineTo(), and
GrPathUtils::quadraticPointCount() all increase a bit.
Using a similar approximation method for SampleSlides.cpp produces visually
reasonable results. Without a relevant gm (it looks like gm/pathfill.cpp doesn't
have explicit quadratics?) I'm not sure how to get a better output quality
test.
We could avoid code duplication by:
- have two implementations in GrPathUtils (computedQuadraticPointCount() &
estimatedQuadraticPointCount() are my working titles)
- use a #define to select between them at compile time
- expose both of them in the header file for this test to access
git-svn-id: http://skia.googlecode.com/svn/trunk@1540 2bbb7eff-a529-9590-31e7-b0007b416f81
Change behavior for degenerate paths: now those return kConvex instead of kUnknown
git-svn-id: http://skia.googlecode.com/svn/trunk@1330 2bbb7eff-a529-9590-31e7-b0007b416f81
note: gradient caller doesn't so we can still draw wrong when the caller
converts its initial fx from float->fixed. Perhaps SkClampRange should offer
a float interface as well.
git-svn-id: http://skia.googlecode.com/svn/trunk@1149 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add a config flag to ignore the restrictions
* Apply restriction to both SkPDFScalar and scalars used in content streams.
* +/- 32,767 for the integer part.
* +/1 1/65536 for the fraction part.
Review URL: http://codereview.appspot.com/4240050
git-svn-id: http://skia.googlecode.com/svn/trunk@882 2bbb7eff-a529-9590-31e7-b0007b416f81
scalar->string uses %.8g. Floats have at most 8 significant digits, plus we add
more space for sign, decimal point and exponent.
add tests to check these limits.
git-svn-id: http://skia.googlecode.com/svn/trunk@872 2bbb7eff-a529-9590-31e7-b0007b416f81
Add templated version of SkAutoTUnref.
Add unittests for it.
Remove unused helper apis on SkAutoUnref.
git-svn-id: http://skia.googlecode.com/svn/trunk@858 2bbb7eff-a529-9590-31e7-b0007b416f81
for another iter that runs back-to-front (B2FIter).
add unittest for Deque
git-svn-id: http://skia.googlecode.com/svn/trunk@821 2bbb7eff-a529-9590-31e7-b0007b416f81
- Change SkGraphicState to track and set the blend mode (xfermode) for modes built in to PDF (non porter duff modes + src over).
- Add SkXfermode::asMode() to retrieve xfermode as an enum for non porter duff modes.
- Move SkXfermode.cpp around a bit to support asMode() -- Generally move utility functions toward the top of the file.
- Make SkPDFFormXObject an isolated transparency group, as it used for saveLayer, which draws on transparent, not the device background.
- Set the graphic state in drawDevice and drawBitmap in order to get the right xfermode and alpha.
Review URL: http://codereview.appspot.com/4131043
git-svn-id: http://skia.googlecode.com/svn/trunk@774 2bbb7eff-a529-9590-31e7-b0007b416f81
created path.
todo: convexity perhaps should be tristate: yes, no, unknown
git-svn-id: http://skia.googlecode.com/svn/trunk@768 2bbb7eff-a529-9590-31e7-b0007b416f81
SkSafeRef() and SkSafeUnref().
This is basically a bug waiting to happen. An optimizing compiler can remove
checks for null on "this" if it chooses. However, SkRefCnt::safeRef() relies on
precisely this check...
void SkRefCnt::safeRef() {
if (this) {
this->ref();
}
}
Since a compiler might skip the if-clause, it breaks the intention of this
method, hence its removal.
static inline void SkSafeRef(SkRefCnt* obj) {
if (obj) {
obj->ref();
}
}
This form is not ignored by an optimizing compile, so we use it instead.
git-svn-id: http://skia.googlecode.com/svn/trunk@762 2bbb7eff-a529-9590-31e7-b0007b416f81
Sorry this is such a large CL. It was very exploratory for me to make this
work.
- Add an interface to SkFontHost to retrieve font information and provide NULL implementations on all platforms except Linux.
- Segment large Type 1 fonts into fonts with shared resources with 255 glyphs each.
- Convert the various Type 1 formats to the form PDF wants.
- Update font as we draw text instead of as part of the graphical state.
- Remove built-in font support, we can't really use it.
Other changes I can pull out to a separate CL if you like.
- Add SkTScopedPtr class.
- Fix double free of resources.
- Fix bug in resource unique-ifying code.
- Don't print anything for any empty clip path.
- Fix copy paste error - MiterLimit.
- Fix sign extension bug in SkPDFString
- Fix FlateTest rename that was missed on a previous commit.
Review URL: http://codereview.appspot.com/4082042
git-svn-id: http://skia.googlecode.com/svn/trunk@728 2bbb7eff-a529-9590-31e7-b0007b416f81
This patch adds four methods to SkBitmap. There are two functions to return
"safe size", defined as the number of pixels from the value returned by
getPixels() to the end of the allocated buffer.
There is one version of fillPixels() to copy the bitmap instance into an
external buffer (with specified size, and using specified stride), and another
fillPixels() to copy from an external buffer to the instance bitmap. In the
latter case the specified height, width and pixel format must match that used by
the bitmap instance, although the specified stride may be any value at least as
large as the minimum stride for the specified geometry. It is assumed that the
external buffer is of size at least (height - 1)*stride + width *
bytesPerPixel.
Both fillPixels() functions return false if the copy is not possible with the
specified parameters.
Review URL: http://codereview.appspot.com/2837041/
git-svn-id: http://skia.googlecode.com/svn/trunk@625 2bbb7eff-a529-9590-31e7-b0007b416f81
speedup some of the unittests that were too slow
minor cleanup in SkScan_Path, in prep for larger changes
git-svn-id: http://skia.googlecode.com/svn/trunk@426 2bbb7eff-a529-9590-31e7-b0007b416f81
- copyTo() now preserves isOpaqueness, and BitmapCopyTest tests it
- bitmap shader doesn't claim to have shadespan16 if dithering is on, since its
sampler doesn't auto-dither (note that gradients do auto-dither in their
16bit sampler)
- blitter setup just relies on the shader to report if its 16bit sampler can be
called (allowing gradients to say yes regardless of dither, but bitmaps to say
no if dithering is on)
git-svn-id: http://skia.googlecode.com/svn/trunk@331 2bbb7eff-a529-9590-31e7-b0007b416f81
define constant for max value flatten/unflatten can return (so clients can put
the buffer on the stack)
git-svn-id: http://skia.googlecode.com/svn/trunk@243 2bbb7eff-a529-9590-31e7-b0007b416f81
set linewidth in gldevice for hair rects
remove some cruft from samples
add more gl-unimpl messages
git-svn-id: http://skia.googlecode.com/svn/trunk@199 2bbb7eff-a529-9590-31e7-b0007b416f81
trying to access its colorTable. Update unittest for copyTo. Add sample for
using a mask to clip a layer.
git-svn-id: http://skia.googlecode.com/svn/trunk@168 2bbb7eff-a529-9590-31e7-b0007b416f81
Index8.
Also, change the logic of SkBitmap.copyTo() to do memcpy() if srcConfig
and dstConfig are the same.
git-svn-id: http://skia.googlecode.com/svn/trunk@164 2bbb7eff-a529-9590-31e7-b0007b416f81
add comments and cleanup to count_tables in SkFontHost_tables.cpp
fix transparency bug in gifs
use (alpha+1) for blending in srcover mode, to ensure opaque results
git-svn-id: http://skia.googlecode.com/svn/trunk@155 2bbb7eff-a529-9590-31e7-b0007b416f81
but has some problems:
(1) it generates T-vertices;
(2) it only works with right-handed outer contours;
(3) The sort and search are inefficient.
git-svn-id: http://skia.googlecode.com/svn/trunk@119 2bbb7eff-a529-9590-31e7-b0007b416f81
see private headers. This also means the tests don't have to use ../.. to find
the private header they want.
git-svn-id: http://skia.googlecode.com/svn/trunk@107 2bbb7eff-a529-9590-31e7-b0007b416f81
