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* Implement crop rect for lighting image filters. Changes for the CPU path ↵Gravatar senorblanco@chromium.org2013-07-26
| | | | | | | | | | | | | | were fairly straightforward: use the bounds rectangle when traversing the pixels, not the source rectangle. For the GPU path, this required modifying the signature of SkImageFilter::asNewEffect() to receive the bounds offset, so that the lighting filters could offset the light position by the offset. It also required modifying the base-class implementation of SkImageFilter::filterImageGPU() (which implements single-pass filters) to intersect against the bounds rect, to pass its offset to asNewEffect(), and to modify the caller's offset (so it's drawn in the correct place). Note: this will require rebaselining the lighting GM. Six new test cases were added, to accommodate a cropped version of each lighting filter. R=bsalomon@google.com, reed@google.com Review URL: https://codereview.chromium.org/20426002 git-svn-id: http://skia.googlecode.com/svn/trunk@10379 2bbb7eff-a529-9590-31e7-b0007b416f81
* This patch implements a crop rect for SkImageFilter. It has been implemented ↵Gravatar senorblanco@chromium.org2013-07-24
| | | | | | | | | | | | | | | | | | for SkColorFilterImageFilter and SkBlurImageFilter as examples. In order to preserve the immutability of SkImageFilters, the crop rect is passed as a constructor parameter. If NULL (the default), the bounds of the input image are used, as before. This also tightens up the boundary handling for SkImageBlurFilter on the GPU backend. Where we were previously using clamping semantics, we now respect decal semantics (so we don't oversaturate the edges). This brings the GPU and raster backends into closer alignment, but will require some new baselines for the GPU tests. At a minimum, the following tests will need new baselines: imageblur, imagefiltersbase, imagefilterscropped, spritebitmap. R=reed@google.com Committed: https://code.google.com/p/skia/source/detail?r=10251 Review URL: https://codereview.chromium.org/19775006 git-svn-id: http://skia.googlecode.com/svn/trunk@10338 2bbb7eff-a529-9590-31e7-b0007b416f81
* Reverting r10251 (Implement crop rect for SkImageFilter) due to ↵Gravatar robertphillips@google.com2013-07-24
| | | | | | Chromium-side unit test failures git-svn-id: http://skia.googlecode.com/svn/trunk@10304 2bbb7eff-a529-9590-31e7-b0007b416f81
* This patch implements a crop rect for SkImageFilter. It has been implemented ↵Gravatar senorblanco@chromium.org2013-07-22
| | | | | | | | | | | | | | | | for SkColorFilterImageFilter and SkBlurImageFilter as examples. In order to preserve the immutability of SkImageFilters, the crop rect is passed as a constructor parameter. If NULL (the default), the bounds of the input image are used, as before. This also tightens up the boundary handling for SkImageBlurFilter on the GPU backend. Where we were previously using clamping semantics, we now respect decal semantics (so we don't oversaturate the edges). This brings the GPU and raster backends into closer alignment, but will require some new baselines for the GPU tests. At a minimum, the following tests will need new baselines: imageblur, imagefiltersbase, imagefilterscropped, spritebitmap. R=reed@google.com Review URL: https://codereview.chromium.org/19775006 git-svn-id: http://skia.googlecode.com/svn/trunk@10251 2bbb7eff-a529-9590-31e7-b0007b416f81
* Implement offset for GPU filter path. Although we can't yet use this in ↵Gravatar commit-bot@chromium.org2013-07-10
| | | | | | | | | | | | | | | | Blink for FEOffset, due to SVG semantics, we can use it to support crop rect (upcoming patch). This patch adds the parameter to the filterImageGPU() signature, plumbs through the code on the GPU side, and implements support for it in SkXfermodeImageFilter for both raster and GPU. Of the remaining filters with GPU implementations, Blur, Morphology, Bicubic and Displacement work fine; they're commutative wrt offset and can simply pass it up the chain. Blend is not, but will be removed shortly anyway (has been replaced with SkXfermodeImageFilter in Blink). R=reed@google.com, bsalomon@google.com Author: senorblanco@chromium.org Review URL: https://chromiumcodereview.appspot.com/15995026 git-svn-id: http://skia.googlecode.com/svn/trunk@9977 2bbb7eff-a529-9590-31e7-b0007b416f81
* remove dst/rendertarget support for kARGB_4444_ConfigGravatar reed@google.com2013-06-21
| | | | | | | | BUG= Review URL: https://codereview.chromium.org/17335008 git-svn-id: http://skia.googlecode.com/svn/trunk@9727 2bbb7eff-a529-9590-31e7-b0007b416f81
* Implement SkXfermode image filter. This required changing the signature of ↵Gravatar senorblanco@chromium.org2013-05-31
| | | | | | | | | | | | | | SkXfermode::asNewEffectOrCoeffs(), to add an optional background texture. For the raster path, we do a straightforward 2-pass method: draw background, then composite the foreground over it. For the GPU path, if the xfermode can be expressed as an effect, we build an effect with the background texture incorporated, then do a single-pass draw fetching both foreground and background textures, and compositing to the result. If the xfermode is expressed as src/dst coefficients, we do a 2-pass draw as in the raster path and use fixed-function blending. R=bsalomon@google.com, reed@google.com Review URL: https://codereview.chromium.org/16125008 git-svn-id: http://skia.googlecode.com/svn/trunk@9373 2bbb7eff-a529-9590-31e7-b0007b416f81
* Provide a GPU implementation of SkArithmeticMode, using a custom GrEffect ↵Gravatar senorblanco@chromium.org2013-05-29
| | | | | | | | | | | | | | | | | exposed via asNewEffectOrCoeff(). Doing it this way required modifying the arithmode GM to use saveLayer()/restore() rather than creating an offscreen SkBitmap, since otherwise the compositing is always done in raster mode. Fixing that in turn exposed that SkArithmeticMode did not work in Picture mode, since it wasn't flattenable. Made it so. Note: this will require rebaselining the arithmode GM (again). R=bsalomon@google.com, reed@google.com Originally committed: https://code.google.com/p/skia/source/detail?r=9324 Reverted: https://code.google.com/p/skia/source/detail?r=9325 Review URL: https://codereview.chromium.org/16064002 git-svn-id: http://skia.googlecode.com/svn/trunk@9330 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert "Provide a GPU implementation of SkArithmeticMode, using a custom ↵Gravatar senorblanco@chromium.org2013-05-29
| | | | | | | | | | | | GrEffect exposed via asNewEffectOrCoeff()." This reverts commit b8ffe17b5c684f9cfff02285f27e6aa1f75c9b53. TBR=robertphillips Review URL: https://codereview.chromium.org/16115007 git-svn-id: http://skia.googlecode.com/svn/trunk@9325 2bbb7eff-a529-9590-31e7-b0007b416f81
* Provide a GPU implementation of SkArithmeticMode, using a custom GrEffect ↵Gravatar senorblanco@chromium.org2013-05-29
| | | | | | | | | | | | | | exposed via asNewEffectOrCoeff(). Doing it this way required modifying the arithmode GM to use saveLayer()/restore() rather than creating an offscreen SkBitmap, since otherwise the compositing is always done in raster mode. Fixing that in turn exposed that SkArithmeticMode did not work in Picture mode, since it wasn't flattenable. Made it so. Note: this will require rebaselining the arithmode GM (again). R=bsalomon@google.com, reed@google.com Review URL: https://codereview.chromium.org/16064002 git-svn-id: http://skia.googlecode.com/svn/trunk@9324 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add flag to gradients to interpolate colors in premul space. Experimental ↵Gravatar reed@google.com2013-05-24
| | | | | | | | | | | API to encapsulate the shared parameters for all gradients into a struct. BUG= R=bsalomon@google.com Review URL: https://codereview.chromium.org/15893002 git-svn-id: http://skia.googlecode.com/svn/trunk@9273 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add printing of SkColorFilter-derived classes to debuggerGravatar robertphillips@google.com2013-05-23
| | | | | | | | https://codereview.chromium.org/15697012/ git-svn-id: http://skia.googlecode.com/svn/trunk@9255 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add methods to SkLayerDrawLooper to allow adding layers on topGravatar commit-bot@chromium.org2013-05-22
| | | | | | | | | | | | | | | | | as well as on the bottom. This is more convenient for some callers who generate layers from a data structure in bottom-to-top, rather than top-to-bottom, order. BUG=242529 R=tomhudson@chromium.org Author: jbroman@chromium.org Review URL: https://chromiumcodereview.appspot.com/15314003 git-svn-id: http://skia.googlecode.com/svn/trunk@9233 2bbb7eff-a529-9590-31e7-b0007b416f81
* add SkLerpXfermodeGravatar reed@google.com2013-05-21
| | | | | | | | | BUG= R=bsalomon@google.com Review URL: https://codereview.chromium.org/15602003 git-svn-id: http://skia.googlecode.com/svn/trunk@9229 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fix includes in SkLayerDrawLooper.h. It was previously not possible toGravatar commit-bot@chromium.org2013-05-14
| | | | | | | | | | | | | include this header unless SkPoint and SkPaint were previously defined. BUG= R=reed@google.com, senorblanco@chromium.org Author: jbroman@chromium.org Review URL: https://chromiumcodereview.appspot.com/14607015 git-svn-id: http://skia.googlecode.com/svn/trunk@9130 2bbb7eff-a529-9590-31e7-b0007b416f81
* Adding missing SK_API identifier to class so that it's accessible in debug ↵Gravatar sugoi@google.com2013-04-25
| | | | | | | | blink. Review URL: https://codereview.chromium.org/14190016 git-svn-id: http://skia.googlecode.com/svn/trunk@8857 2bbb7eff-a529-9590-31e7-b0007b416f81
* Allow single-pass filters (which use asNewEffect()) to participate in the ↵Gravatar senorblanco@chromium.org2013-04-08
| | | | | | | | | | image filter DAG. This was done by introducing the SkSinglePassImageFilter abstract base class, which implements canFilterImageGPU() and filterImageGPU() on behalf of the derived class. The derived class still only needs to asNewEffect(). This allows us to recurse on the filter input in SkSinglePassImageFilter::onFilterImageGPU(). It also allows us to remove any knowledge of single-pass image filters from SkGpuDevice and from the SkImageFilter base class as well. BUG= Review URL: https://codereview.chromium.org/13602013 git-svn-id: http://skia.googlecode.com/svn/trunk@8563 2bbb7eff-a529-9590-31e7-b0007b416f81
* New SVG turbulence in SkiaGravatar sugoi@google.com2013-04-05
| | | | | | | | | This cl contains the code for CPU generation of noise. TEST:Added 'perlinnoise' gm Review URL: https://codereview.chromium.org/13094003 git-svn-id: http://skia.googlecode.com/svn/trunk@8541 2bbb7eff-a529-9590-31e7-b0007b416f81
* Reverting r8376, r8373 and r8371 due to Android shader compilation failuresGravatar robertphillips@google.com2013-03-25
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@8378 2bbb7eff-a529-9590-31e7-b0007b416f81
* New SVG turbulence in SkiaGravatar sugoi@google.com2013-03-25
| | | | | | | | | | This cl contains the code for both CPU and GPU generation of noise. Both codepaths yield equivalent results. TEST:Added 'perlinnoise' gm Review URL: https://codereview.chromium.org/13047005 git-svn-id: http://skia.googlecode.com/svn/trunk@8371 2bbb7eff-a529-9590-31e7-b0007b416f81
* Reverting 8313 (SVG turbulence) due to Ubuntu failuresGravatar robertphillips@google.com2013-03-21
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@8316 2bbb7eff-a529-9590-31e7-b0007b416f81
* New SVG turbulence in SkiaGravatar sugoi@google.com2013-03-21
| | | | | | | | | This cl contains the code for both CPU and GPU generation of noise. Both codepaths yield equivalent results. TEST:Added 'perlinnoise' gm Review URL: https://codereview.appspot.com/7322060 git-svn-id: http://skia.googlecode.com/svn/trunk@8313 2bbb7eff-a529-9590-31e7-b0007b416f81
* Added toString to SkMaskFilter-derived classesGravatar robertphillips@google.com2013-03-18
| | | | | | | | https://codereview.appspot.com/7889043/ git-svn-id: http://skia.googlecode.com/svn/trunk@8194 2bbb7eff-a529-9590-31e7-b0007b416f81
* Small adjustments to SkRectShaderImageFilter to follow up on original cl.Gravatar sugoi@google.com2013-02-21
| | | | | | Review URL: https://codereview.appspot.com/7377049 git-svn-id: http://skia.googlecode.com/svn/trunk@7816 2bbb7eff-a529-9590-31e7-b0007b416f81
* New SkRectShaderImageFilter image filterGravatar sugoi@google.com2013-02-21
| | | | | | | | | This new changelist also introduces a new image filter called SkRectShaderImageFilter which is make to simply apply a shader on a region without using any inputs. TEST=Added ShaderImageFilter test Review URL: https://codereview.appspot.com/7300046 git-svn-id: http://skia.googlecode.com/svn/trunk@7808 2bbb7eff-a529-9590-31e7-b0007b416f81
* Nuke SkSingleInputImageFilter. 99% of its functionality was refactored into ↵Gravatar senorblanco@chromium.org2013-02-04
| | | | | | | | SkImageFilterUtils in https://code.google.com/p/skia/source/detail?r=7467, so it has outlived its usefulness. Review URL: https://codereview.appspot.com/7277055 git-svn-id: http://skia.googlecode.com/svn/trunk@7563 2bbb7eff-a529-9590-31e7-b0007b416f81
* revert name changes to SkBlendImageFilter. It (correctly) named its enum ↵Gravatar reed@google.com2013-02-01
| | | | | | | | | | | kMultiply_Mode, and handled that itself internally, rather than calling SkXfermode. This CL removes the kModulate_Mode alias from its list. git-svn-id: http://skia.googlecode.com/svn/trunk@7509 2bbb7eff-a529-9590-31e7-b0007b416f81
* Adding kMultiply_Mode (as an alias to kModulate_Mode) in ↵Gravatar robertphillips@google.com2013-01-31
| | | | | | SkBlendImageFilter.h to get Chrome compiling git-svn-id: http://skia.googlecode.com/svn/trunk@7482 2bbb7eff-a529-9590-31e7-b0007b416f81
* clone of https://codereview.appspot.com/7208043/Gravatar reed@google.com2013-01-30
| | | | | | Review URL: https://codereview.appspot.com/7232062 git-svn-id: http://skia.googlecode.com/svn/trunk@7476 2bbb7eff-a529-9590-31e7-b0007b416f81
* This changes the signature of SkImageFilter::filterImageGPU() to use ↵Gravatar senorblanco@chromium.org2013-01-30
| | | | | | | | | | SkBitmaps for input and output, and removes the rect param. This allows us to return textures which are larger than the actual result, such as when GrAutoScratchTextures are used. The SkBitmap's size represents the active region, while the GrTexture's size is the full texture size. This fixes the bicubic image filter GM on the GPU, which otherwise draws garbage outside the filtered region. It also moves us closer to unifying the signatures of SkImageFilter::onFilterImage() and SkImageFilter::filterImageGPU(). Review URL: https://codereview.appspot.com/7180048 git-svn-id: http://skia.googlecode.com/svn/trunk@7467 2bbb7eff-a529-9590-31e7-b0007b416f81
* Added toString to SkDrawLooper-derived classesGravatar robertphillips@google.com2013-01-28
| | | | | | | | https://codereview.appspot.com/7195054/ git-svn-id: http://skia.googlecode.com/svn/trunk@7422 2bbb7eff-a529-9590-31e7-b0007b416f81
* Sanitizing source files in Skia_Periodic_House_KeepingGravatar skia.committer@gmail.com2013-01-26
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@7406 2bbb7eff-a529-9590-31e7-b0007b416f81
* add optional cull-rect to patheffects, so they can do less work if their resultsGravatar reed@google.com2013-01-24
| | | | | | | lie outside of the current clip-bounds (the cull rect). Review URL: https://codereview.appspot.com/7206044 git-svn-id: http://skia.googlecode.com/svn/trunk@7378 2bbb7eff-a529-9590-31e7-b0007b416f81
* Sanitizing source files in Skia_Periodic_House_KeepingGravatar skia.committer@gmail.com2013-01-23
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@7332 2bbb7eff-a529-9590-31e7-b0007b416f81
* Added toString to SkXfermode-derived classes (for debugger) Gravatar robertphillips@google.com2013-01-22
| | | | | | | | https://codereview.appspot.com/7139058/ git-svn-id: http://skia.googlecode.com/svn/trunk@7308 2bbb7eff-a529-9590-31e7-b0007b416f81
* (Relanding r7275 with assert fix, plus fixes from r7276, r7280, r7283.)Gravatar senorblanco@chromium.org2013-01-18
| | | | | | | | | | | | Implement a bicubic resampling image filter, with raster and GPU backends. In order to get this to work on the GPU side, I had to modify the width and height of the drawn texture in drawSprite() and drawDevice() to use the filtered texture's dimensions, instead of the source texture. (This wasn't a problem before since all other image filters produce results the same dimensions as their input texture.) For now, this implementation only does axis-aligned scaling (same as the Lanczos-3 implementation in Chrome). It's also done for correctness and clarity, not speed, so there are lots of opportunities for speedups. Committed: https://code.google.com/p/skia/source/detail?r=7275 Review URL: https://codereview.appspot.com/7033049 git-svn-id: http://skia.googlecode.com/svn/trunk@7287 2bbb7eff-a529-9590-31e7-b0007b416f81
* Reverting chain of SkBicubicImageFilter changes (7275, 7276, 7280 & 7283)Gravatar robertphillips@google.com2013-01-18
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@7285 2bbb7eff-a529-9590-31e7-b0007b416f81
* Implement a bicubic resampling image filter, with raster and GPU backends.Gravatar senorblanco@chromium.org2013-01-18
| | | | | | | | | In order to get this to work on the GPU side, I had to modify the width and height of the drawn texture in drawSprite() and drawDevice() to use the filtered texture's dimensions, instead of the source texture. (This wasn't a problem before since all other image filters produce results the same dimensions as their input texture.) For now, this implementation only does axis-aligned scaling (same as the Lanczos-3 implementation in Chrome). It's also done for correctness and clarity, not speed, so there are lots of opportunities for speedups. Review URL: https://codereview.appspot.com/7033049 git-svn-id: http://skia.googlecode.com/svn/trunk@7275 2bbb7eff-a529-9590-31e7-b0007b416f81
* Wrap GrEffects in GrEffectPtr.Gravatar bsalomon@google.com2013-01-16
| | | | | | | | | This is the first step towards automatic recycling of scratch resouces in the cache via ref-cnts. R=robertphillips@google.com Review URL: https://codereview.appspot.com/7092061 git-svn-id: http://skia.googlecode.com/svn/trunk@7222 2bbb7eff-a529-9590-31e7-b0007b416f81
* Added print out of SkShader information to debuggerGravatar robertphillips@google.com2013-01-15
| | | | | | | | https://codereview.appspot.com/7105045/ git-svn-id: http://skia.googlecode.com/svn/trunk@7201 2bbb7eff-a529-9590-31e7-b0007b416f81
* Implementation of the displacement effect (both CPU and GPU)Gravatar sugoi@google.com2013-01-15
| | | | | | | TEST=Added new GM called "displacement" Review URL: https://codereview.appspot.com/7058075 git-svn-id: http://skia.googlecode.com/svn/trunk@7182 2bbb7eff-a529-9590-31e7-b0007b416f81
* Rename onFilterImageGPU to filterImageGPU(), to match skia convention. No ↵Gravatar senorblanco@chromium.org2013-01-10
| | | | | | | | | | change in functionality. (Note that this does mean that clients must override onFilterImage() to implement the raster path, but filterImageGPU() to implement the GPU path.) Review URL: https://codereview.appspot.com/7058078 git-svn-id: http://skia.googlecode.com/svn/trunk@7123 2bbb7eff-a529-9590-31e7-b0007b416f81
* fix warnings related to constness in overrides of SkColorFilterGravatar mike@reedtribe.org2012-12-24
| | | | | | | | update samples for circle testing git-svn-id: http://skia.googlecode.com/svn/trunk@6943 2bbb7eff-a529-9590-31e7-b0007b416f81
* change SkMaskFilter methods to const, in preparation for making the class asGravatar reed@google.com2012-12-18
| | | | | | | immutable and re-entrant safe. Review URL: https://codereview.appspot.com/6944069 git-svn-id: http://skia.googlecode.com/svn/trunk@6881 2bbb7eff-a529-9590-31e7-b0007b416f81
* change all interfaces for SkRasterizer to const, in preparation for marking itGravatar reed@google.com2012-12-18
| | | | | | | as immutable/re-entrant safe. Review URL: https://codereview.appspot.com/6936064 git-svn-id: http://skia.googlecode.com/svn/trunk@6878 2bbb7eff-a529-9590-31e7-b0007b416f81
* change all patheffect methods to const, in preparation for marking itsGravatar reed@google.com2012-12-18
| | | | | | | subclasses as immutable/re-entrant safe. Review URL: https://codereview.appspot.com/6949071 git-svn-id: http://skia.googlecode.com/svn/trunk@6877 2bbb7eff-a529-9590-31e7-b0007b416f81
* Make all colorfilter methods const, in preparation for declaring themGravatar reed@google.com2012-12-17
| | | | | | to be immutable and reentrant-safe git-svn-id: http://skia.googlecode.com/svn/trunk@6856 2bbb7eff-a529-9590-31e7-b0007b416f81
* Mark all methods on SkXfermode as const, in preparation for declaring allGravatar reed@google.com2012-12-17
| | | | | | | xfermodes as immutable/reentrant-safe Review URL: https://codereview.appspot.com/6941065 git-svn-id: http://skia.googlecode.com/svn/trunk@6855 2bbb7eff-a529-9590-31e7-b0007b416f81
* Pull SkMergeImageFilter out into its own file.Gravatar senorblanco@chromium.org2012-12-04
| | | | | | Review URL: https://codereview.appspot.com/6873052 git-svn-id: http://skia.googlecode.com/svn/trunk@6662 2bbb7eff-a529-9590-31e7-b0007b416f81
* Modify the blur bench to add tests for high-quality blurs, and large ↵Gravatar senorblanco@chromium.org2012-11-29
| | | | | | | | | | non-integer blurs. Change the Coarse flag (which just turns on separable blurs) to an #ifdef, since separable is no longer just Coarse. (This #ifdef will hopefully be shortlived, once Chrome has switched). The separable blur algorithm gives +45% on SampleBlur, +84% on SampleBigBlur, +31% on TheVerge, +35 to +85% on blurbench in HQ (depending on size), +8 to +35% in low quality. (All of these on 32bit MacPro). Review URL: https://codereview.appspot.com/6851117 git-svn-id: http://skia.googlecode.com/svn/trunk@6601 2bbb7eff-a529-9590-31e7-b0007b416f81