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* Interpolate vertical linear gradients for improved quality.Gravatar tomhudson@google.com2012-01-18
| | | | | | | | | Consolidate interpolation functions, add new faster more accurate dithering interpolator. git-svn-id: http://skia.googlecode.com/svn/trunk@3072 2bbb7eff-a529-9590-31e7-b0007b416f81
* Pull xfer mode test out of generic draw-as-hairline test. Use coverage ↵Gravatar bsalomon@google.com2012-01-18
| | | | | | | | | | | rather than alpha to draw hairlines < 1pix wide in GPU. Review URL: http://codereview.appspot.com/5528112/ git-svn-id: http://skia.googlecode.com/svn/trunk@3070 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fixing the behavior of SkPathMeasure to reflect changes in SkPath::Iter.Gravatar schenney@chromium.org2012-01-18
| | | | | | | | | | | This implementation modifies SkPath::Iter extensively to avoid copying the points when used to measure path length. BUG=446 TEST=tests/PathMeasureTest.cpp Review URL: https://codereview.appspot.com/5533074 git-svn-id: http://skia.googlecode.com/svn/trunk@3062 2bbb7eff-a529-9590-31e7-b0007b416f81
* add GenA8FromLCD as a hack to force GDI to create the A8 mask from the LCDGravatar reed@google.com2012-01-18
| | | | | | | | | results, rather than asking GDI directly for A8 (which it sometimes decides to interpret as BW) git-svn-id: http://skia.googlecode.com/svn/trunk@3061 2bbb7eff-a529-9590-31e7-b0007b416f81
* Adding class SkDeferredCanvas for deferred rendering.Gravatar junov@google.com2012-01-18
| | | | | | | | | TEST=added a new pass to gm, so all gm tests are run through SkDeferredCanvas REVIEW=http://codereview.appspot.com/5430058/ git-svn-id: http://skia.googlecode.com/svn/trunk@3059 2bbb7eff-a529-9590-31e7-b0007b416f81
* if the y-max has neighbors (prev and next) with the same Y values, then theGravatar reed@google.com2012-01-17
| | | | | | | | | | | cross will be 0, but we can still know the direction by looking at the change in X Fixes the hypen in #7 of this bug http://code.google.com/p/chromium/issues/detail?id=109370 git-svn-id: http://skia.googlecode.com/svn/trunk@3049 2bbb7eff-a529-9590-31e7-b0007b416f81
* Modify SkBitmap::extractSubset() to respect volatilityGravatar skyostil@google.com2012-01-16
| | | | | | | | | | The resulting subset bitmap will always have the same volatility flag as the source bitmap. BUG=452 Review URL: http://codereview.appspot.com/5544052 git-svn-id: http://skia.googlecode.com/svn/trunk@3039 2bbb7eff-a529-9590-31e7-b0007b416f81
* Subpixel text 3/8 of a pixel too far to the right.Gravatar bungeman@google.com2012-01-13
| | | | | | | http://codereview.appspot.com/5502097/ git-svn-id: http://skia.googlecode.com/svn/trunk@3037 2bbb7eff-a529-9590-31e7-b0007b416f81
* Modify SkBitmap::extractSubset() to respect opaquenessGravatar skyostil@google.com2012-01-13
| | | | | | | | | | The resulting subset bitmap will always have the same opaqueness flag as the source bitmap. BUG=439 Review URL: http://codereview.appspot.com/5534051 git-svn-id: http://skia.googlecode.com/svn/trunk@3036 2bbb7eff-a529-9590-31e7-b0007b416f81
* automatically inject a moveTo if we see a close followed by a line/quad/cubicGravatar reed@google.com2012-01-12
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@3027 2bbb7eff-a529-9590-31e7-b0007b416f81
* reenable direction test, fix handling of degenerate segments in the ↵Gravatar reed@google.com2012-01-11
| | | | | | non-convex case git-svn-id: http://skia.googlecode.com/svn/trunk@3021 2bbb7eff-a529-9590-31e7-b0007b416f81
* fix cheapComputeDirection() in the non-convex case to pivot on the y-max pointGravatar reed@google.com2012-01-11
| | | | | | | | | rather than pivoting on the next. Also remove the loop, as it is just logically wrong to think we can use this trick only a non-extrema pt. git-svn-id: http://skia.googlecode.com/svn/trunk@3014 2bbb7eff-a529-9590-31e7-b0007b416f81
* improve clamping logic when handling imprecise chopping of cubicsGravatar reed@google.com2012-01-11
| | | | | | | | http://code.google.com/p/skia/issues/detail?id=444 git-svn-id: http://skia.googlecode.com/svn/trunk@3011 2bbb7eff-a529-9590-31e7-b0007b416f81
* stroking wants CW, so we reverse if the orig was CCWGravatar reed@google.com2012-01-10
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@3004 2bbb7eff-a529-9590-31e7-b0007b416f81
* restore (debugged) cheapComputeDirectionGravatar reed@google.com2012-01-10
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@3000 2bbb7eff-a529-9590-31e7-b0007b416f81
* disable cheap check while its being debuggedGravatar reed@google.com2012-01-10
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@2998 2bbb7eff-a529-9590-31e7-b0007b416f81
* add SkPath::cheapComputeDirection() plus unittestsGravatar reed@google.com2012-01-10
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@2996 2bbb7eff-a529-9590-31e7-b0007b416f81
* add SkPath::reverseAddPath()Gravatar reed@google.com2012-01-10
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@2995 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add ARM optimizations to the build.Gravatar djsollen@google.com2012-01-09
| | | | | | | | Also had to fix a problem in the ARM memset code that was causing some tests and bench to fail. Review URL: http://codereview.appspot.com/5522052 git-svn-id: http://skia.googlecode.com/svn/trunk@2989 2bbb7eff-a529-9590-31e7-b0007b416f81
* remove obsolete fileGravatar reed@google.com2012-01-09
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@2986 2bbb7eff-a529-9590-31e7-b0007b416f81
* add allowImageFilter() so a device can allow/disallow filtersGravatar reed@google.com2012-01-06
| | | | | | | | (esp. for printing) git-svn-id: http://skia.googlecode.com/svn/trunk@2981 2bbb7eff-a529-9590-31e7-b0007b416f81
* add filterImage() entry-point to SkDevice, to allow it to specialize on ↵Gravatar reed@google.com2012-01-05
| | | | | | | | | | subclasses of SkImageFilter. If that returns false, then the filter itself is invoked. git-svn-id: http://skia.googlecode.com/svn/trunk@2977 2bbb7eff-a529-9590-31e7-b0007b416f81
* add asComponentTable() query (will impl in SkTableColorFilter next)Gravatar reed@google.com2012-01-05
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@2971 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add the ability to iterate through a path without modification. This change isGravatar schenney@chromium.org2012-01-04
| | | | | | | | | | required by WebKit SVG in order to correctly draw markers and endcaps. BUG=415 TEST=TestPath in the unit tests Review URL: http://codereview.appspot.com/5505097 git-svn-id: http://skia.googlecode.com/svn/trunk@2962 2bbb7eff-a529-9590-31e7-b0007b416f81
* Allow 0 as a valid text size in SkPaint.Gravatar djsollen@google.com2012-01-04
| | | | | | Review URL: http://codereview.appspot.com/5514043 git-svn-id: http://skia.googlecode.com/svn/trunk@2961 2bbb7eff-a529-9590-31e7-b0007b416f81
* drawPosText with center or right align skips every other character.Gravatar bungeman@google.com2012-01-04
| | | | | | | http://codereview.appspot.com/5504118/ git-svn-id: http://skia.googlecode.com/svn/trunk@2959 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fix off-by-one error in assertion; improve coverage_to_exact_alpha()Gravatar tomhudson@google.com2012-01-03
| | | | | | | | | | implementation. http://codereview.appspot.com/5504116/ git-svn-id: http://skia.googlecode.com/svn/trunk@2947 2bbb7eff-a529-9590-31e7-b0007b416f81
* expose isSubpixel() on the cache, so SkDraw can know if it should expectGravatar reed@google.com2012-01-03
| | | | | | | | subpixel text (it may be that the paint requested it, but the scaler ignored it) git-svn-id: http://skia.googlecode.com/svn/trunk@2946 2bbb7eff-a529-9590-31e7-b0007b416f81
* Update header comments to more accurately describe behavior ofGravatar tomhudson@google.com2012-01-03
| | | | | | | | | | SkRegion::getBoundaryPath(). Add SkASSERT of SkPath argument for safety. codereview.appspot.com/5504095/ git-svn-id: http://skia.googlecode.com/svn/trunk@2942 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fix problems with SampleApp Fuzzer due to issues in iterating over ↵Gravatar schenney@chromium.org2011-12-29
| | | | | | | | | | | | | | degenerate paths. The fuzzer gets my vote as best test tool ever. There are several issues outstanding: crashes in FixedPoint and a crash in the path filling code that is most likely due to clipping problems (but maybe not). BUG=425 Review URL: http://codereview.appspot.com/5503080 git-svn-id: http://skia.googlecode.com/svn/trunk@2936 2bbb7eff-a529-9590-31e7-b0007b416f81
* Tighten up restrictions on blit width: some shaders assert that theyGravatar tomhudson@google.com2011-12-29
| | | | | | | | | are addressing more than 0 pixels. codereview.appspot.com/5489125/ git-svn-id: http://skia.googlecode.com/svn/trunk@2935 2bbb7eff-a529-9590-31e7-b0007b416f81
* Bugfixes to antialiased blitting.Gravatar tomhudson@google.com2011-12-28
| | | | | | | | | More details of blitter contracts in function headers. New precautionary assert in one high-level default blitter. git-svn-id: http://skia.googlecode.com/svn/trunk@2928 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add SkDEBUGFAIL to clean up use of SkASSERT(!"text");Gravatar tomhudson@google.com2011-12-28
| | | | | | | | | | catch a couple of latent SkASSERT("text") bugs. http://codereview.appspot.com/5504090/ git-svn-id: http://skia.googlecode.com/svn/trunk@2926 2bbb7eff-a529-9590-31e7-b0007b416f81
* New 'blitAntiRect' entry point for blitters, specialized in supersamplingGravatar tomhudson@google.com2011-12-27
| | | | | | | | | | | | | | code to avoid quarter-scanline-at-a-time building of large rectangular clips. Speeds up aa_clip_build_path_AA benchmark 2x, aa_clip_build_rect_AA benchmark 10x or more. This is a sufficient performance gain to let Chromium reenable WebKit's soft clipping code. Rolling into Chromium will require ~18 rebaselines. git-svn-id: http://skia.googlecode.com/svn/trunk@2924 2bbb7eff-a529-9590-31e7-b0007b416f81
* Protecting changes to the SkPath iteration with an ifdef for Chromium.Gravatar schenney@chromium.org2011-12-21
| | | | | | | | Something is broken, and this will protect us while we sort it out. Unreviewed. git-svn-id: http://skia.googlecode.com/svn/trunk@2922 2bbb7eff-a529-9590-31e7-b0007b416f81
* add unittest for invariants for empty paths, still need to think aboutGravatar reed@google.com2011-12-21
| | | | | | | | hairlines in those cases git-svn-id: http://skia.googlecode.com/svn/trunk@2919 2bbb7eff-a529-9590-31e7-b0007b416f81
* Unreviewed. Adding a define to enable the old bahevior for SkPath::isEmpty.Gravatar schenney@chromium.org2011-12-21
| | | | | | Should be undone at some point, when WebKit no longer needs it. git-svn-id: http://skia.googlecode.com/svn/trunk@2918 2bbb7eff-a529-9590-31e7-b0007b416f81
* preserve inverseness when strokingGravatar reed@google.com2011-12-21
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@2916 2bbb7eff-a529-9590-31e7-b0007b416f81
* Implement SkColorFilter::asColorMatrix() virtual, and override inGravatar senorblanco@chromium.org2011-12-20
| | | | | | | | | | | | SkColorMatrixFilter. Implement missing SkColorMatrixFilter::setMatrix() and setArray() functions (were in .h, just not implemented). Add a gm for color matrix filters. Review URL: http://codereview.appspot.com/5500044/ git-svn-id: http://skia.googlecode.com/svn/trunk@2909 2bbb7eff-a529-9590-31e7-b0007b416f81
* fix 'no static globals' for chromiumGravatar caryclark@google.com2011-12-20
| | | | | | | | | | M include/core/SkFlattenable.h M include/core/SkPixelRef.h M src/core/SkGraphics.cpp git-svn-id: http://skia.googlecode.com/svn/trunk@2908 2bbb7eff-a529-9590-31e7-b0007b416f81
* initial impl of SkImageFilters : virtual signature will change!Gravatar reed@google.com2011-12-20
| | | | | | | | Do not invest too much in other subclasses until this API solidifies. git-svn-id: http://skia.googlecode.com/svn/trunk@2903 2bbb7eff-a529-9590-31e7-b0007b416f81
* Modifying SkPath to store all verbs provided by the user, and to giveGravatar schenney@chromium.org2011-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | correct results for all stroke and fill modes even on the various types of degenerate paths. The goals of this patch include: 1. Have Skia store all of the verbs implied by path construction methods, even if those define degenerate paths. The SVG implementation in WebKit, which is backed by Skia, needs to know about all elements of the path, even degenerate ones, for the correct drawing of markers and line caps. For example, in SVG you should be able to draw a scatter plot by specifying a marker for vertices and then giving a sequence of moveTo commands. Skia will not store the moveTos, requiring a different storage mechanism. 2. Assuming 1, maintain the current Skia behavior. That is, make Skia robust to degenerate paths. 3. Fix an existing bug in Skia where a degenerate moveTo-lineTo pair spits out warnings from rasterization and produces incorrect results in inverse-fill renderings. 4. Adds extensive testing for degenerate paths and path rendering in general. To meet these goals, the patch I am proposing will result in minor additional storage for degenerate paths (a few bytes per degenerate path, only if the user defines such paths). There is also some additional overhead in the iteration code, with the path now cleaned to remove degenerate segments as part of the iteration process. I suspect this will also fix issues with computing normal vectors to degenerate segments. Benchmarking suggests that this change may result in slightly (< 1%) slower path drawing due to the checks for degeneracy. This overhead could be removed (in fact, a significant speedup could occur) if the results of iterating to clean up the path were cached. This would cost memory, of course, and quite a bit of it. BUG=398 TEST=tests/PathTest.cpp gm/cubicpaths.cpp gm/degeneratesegments.cpp gm/movepaths.cpp gm/linepaths.cpp gm/quadpaths.cpp Review URL: http://codereview.appspot.com/5482051 git-svn-id: http://skia.googlecode.com/svn/trunk@2901 2bbb7eff-a529-9590-31e7-b0007b416f81
* change typeface::purgeall to not assume that the array is empty, as it mayGravatar reed@google.com2011-12-16
| | | | | | | | | | | | | contain typefaces that still are referenced. change SkTypeface::UniqueID to internally hold onto a reference to the default typeface, so that it will always be available if the font cache tries to resolve it. Then general rule being: if we have a fontID specified by SkPaint, then its associated typeface object must be alive. git-svn-id: http://skia.googlecode.com/svn/trunk@2889 2bbb7eff-a529-9590-31e7-b0007b416f81
* cleanup font purging functionsGravatar caryclark@google.com2011-12-16
| | | | | | | | | M include/core/SkGraphics.h M src/core/SkGraphics.cpp git-svn-id: http://skia.googlecode.com/svn/trunk@2887 2bbb7eff-a529-9590-31e7-b0007b416f81
* fix debug commentGravatar caryclark@google.com2011-12-16
| | | | | | | | | M src/core/SkPixelRef.cpp M src/core/SkFlattenable.cpp git-svn-id: http://skia.googlecode.com/svn/trunk@2886 2bbb7eff-a529-9590-31e7-b0007b416f81
* Exposing the isImmutable/setImmutable API of SkPixelRef in SkBitmapGravatar junov@chromium.org2011-12-15
| | | | | | | | REVIEW=http://codereview.appspot.com/5491055/ git-svn-id: http://skia.googlecode.com/svn/trunk@2883 2bbb7eff-a529-9590-31e7-b0007b416f81
* add optional manual global initializationGravatar caryclark@google.com2011-12-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | M include/effects/SkAvoidXfermode.h M include/effects/SkDiscretePathEffect.h M include/effects/Sk1DPathEffect.h M include/effects/Sk2DPathEffect.h M include/effects/SkBlurDrawLooper.h M include/effects/SkPixelXorXfermode.h M include/effects/SkDashPathEffect.h M include/effects/SkColorMatrixFilter.h M include/effects/SkEmbossMaskFilter.h M include/effects/SkLayerDrawLooper.h M include/effects/SkGroupShape.h M include/effects/SkBlurImageFilter.h M include/effects/SkRectShape.h A include/effects/SkEffects.h M include/effects/SkCornerPathEffect.h M include/effects/SkGradientShader.h M include/effects/SkBlurMaskFilter.h M include/effects/SkLayerRasterizer.h M include/core/SkMallocPixelRef.h M include/core/SkFlattenable.h M include/core/SkShape.h M include/core/SkPixelRef.h M include/core/SkGraphics.h M include/core/SkPathEffect.h M include/core/SkPostConfig.h M include/core/SkXfermode.h M include/core/SkColorFilter.h M include/images/SkFlipPixelRef.h M include/images/SkImageRef_GlobalPool.h M src/effects/SkDashPathEffect.cpp M src/effects/SkColorMatrixFilter.cpp M src/effects/SkBlurImageFilter.cpp M src/effects/SkGroupShape.cpp M src/effects/SkCornerPathEffect.cpp M src/effects/SkGradientShader.cpp M src/effects/SkBlurMaskFilter.cpp M src/effects/SkAvoidXfermode.cpp M src/effects/Sk2DPathEffect.cpp M src/effects/SkBlurDrawLooper.cpp M src/effects/SkPixelXorXfermode.cpp M src/effects/SkColorFilters.cpp M src/effects/SkLayerDrawLooper.cpp M src/effects/SkRectShape.cpp A src/effects/SkEffects.cpp M src/effects/SkLayerRasterizer.cpp M src/effects/SkDiscretePathEffect.cpp M src/effects/Sk1DPathEffect.cpp A src/effects/SkEffects_none.cpp M src/core/SkPixelRef.cpp M src/core/SkGraphics.cpp M src/core/SkFlattenable.cpp M src/core/SkBitmapProcShader.h M src/core/SkPathEffect.cpp M src/core/SkShape.cpp M src/core/SkXfermode.cpp M src/core/SkMallocPixelRef.cpp M src/core/SkBitmapProcShader.cpp M src/images/SkFlipPixelRef.cpp M src/images/SkImageRef_GlobalPool.cpp A src/ports/SkGlobalInitialization_chromium.cpp M src/ports/SkImageRef_ashmem.h M src/ports/SkImageRef_ashmem.cpp A src/ports/SkGlobalInitialization_default.cpp M gyp/effects.gyp M gyp/tools.gyp M gyp/ports.gyp git-svn-id: http://skia.googlecode.com/svn/trunk@2876 2bbb7eff-a529-9590-31e7-b0007b416f81
* add canvas::isDrawingToLayer(), as a fast query for chrome; faster thanGravatar reed@google.com2011-12-14
| | | | | | | | setting up a drawiter and counting the layers. git-svn-id: http://skia.googlecode.com/svn/trunk@2875 2bbb7eff-a529-9590-31e7-b0007b416f81
* Closing fd for mmap after mapping succeeds.Gravatar djsollen@google.com2011-12-09
| | | | | | Review URL: http://codereview.appspot.com/5467058 git-svn-id: http://skia.googlecode.com/svn/trunk@2847 2bbb7eff-a529-9590-31e7-b0007b416f81
* Adding isOpaque method to skia shader classesGravatar junov@chromium.org2011-12-09
| | | | | | | | | REVIEW=http://codereview.appspot.com/5451102/ TEST=unit test ShaderOpacity git-svn-id: http://skia.googlecode.com/svn/trunk@2840 2bbb7eff-a529-9590-31e7-b0007b416f81