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* Clear out SK_SCALAR_IS_FLOAT from SkRadialGradient, and merge the logic for ↵Gravatar commit-bot@chromium.org2013-10-16
| | | | | | | | | | | | | | | radial_mirror and radial_repeat. New radial/repeated bench is 10-20x faster now using float instead of fixed; the rest are unaffected. BUG= R=reed@google.com Author: mtklein@google.com Review URL: https://codereview.chromium.org/26410003 git-svn-id: http://skia.googlecode.com/svn/trunk@11824 2bbb7eff-a529-9590-31e7-b0007b416f81
* Remove support for SK_CROP_RECT_IS_INT, now that it is no longer used in ↵Gravatar senorblanco@chromium.org2013-10-16
| | | | | | | | | | | Blink or Chrome. BUG= R=reed@google.com, reed Review URL: https://codereview.chromium.org/27521002 git-svn-id: http://skia.googlecode.com/svn/trunk@11812 2bbb7eff-a529-9590-31e7-b0007b416f81
* force readbuffer clients to use specialized readFoo for flattenablesGravatar reed@google.com2013-10-16
| | | | | | | | | BUG= R=mtklein@google.com Review URL: https://codereview.chromium.org/26702002 git-svn-id: http://skia.googlecode.com/svn/trunk@11803 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add crop rect support for SkDisplacementMapEffect (raster and GPU paths).Gravatar senorblanco@chromium.org2013-10-15
| | | | | | | | | | Covered by new test cases added to displacement GM (will require rebaseline). R=bsalomon@google.com Review URL: https://codereview.chromium.org/26531002 git-svn-id: http://skia.googlecode.com/svn/trunk@11782 2bbb7eff-a529-9590-31e7-b0007b416f81
* SkRectShaderImageFilter: add a new factory method which takes a CropRect.Gravatar senorblanco@chromium.org2013-10-15
| | | | | | | | | | | This will become the preferred API, and the old Create method will be deprecated. R=reed@google.com, reed BUG= Review URL: https://codereview.chromium.org/26220004 git-svn-id: http://skia.googlecode.com/svn/trunk@11773 2bbb7eff-a529-9590-31e7-b0007b416f81
* separate state for msaa renderabilityGravatar commit-bot@chromium.org2013-10-15
| | | | | | | | | | R=robertphillips@google.com, brian@thesalomons.net Author: bsalomon@google.com Review URL: https://codereview.chromium.org/26695005 git-svn-id: http://skia.googlecode.com/svn/trunk@11770 2bbb7eff-a529-9590-31e7-b0007b416f81
* Remove need for readFlattenableT from SkLightingImageFilter.Gravatar commit-bot@chromium.org2013-10-14
| | | | | | | | | | | | | This will need new picture version. BUG= R=reed@android.com, sugoi@google.com, senorblanco@chromium.org, reed@google.com Author: mtklein@google.com Review URL: https://codereview.chromium.org/26594008 git-svn-id: http://skia.googlecode.com/svn/trunk@11758 2bbb7eff-a529-9590-31e7-b0007b416f81
* Remove SkLumaXfermode.Gravatar commit-bot@chromium.org2013-10-14
| | | | | | | | | | | | | | Possibly the shortest-lived Skia feature, SkLumaXfermode is now replaced by a color filter implementation (SkLumaColorFilter). All known existing clients (Blink) have been converted. R=reed@google.com Author: fmalita@chromium.org Review URL: https://codereview.chromium.org/26916002 git-svn-id: http://skia.googlecode.com/svn/trunk@11750 2bbb7eff-a529-9590-31e7-b0007b416f81
* SkRectShaderImageFilter: add a workaround for the zero-sized rects currently ↵Gravatar senorblanco@chromium.org2013-10-11
| | | | | | | | | | | passed by Blink. BUG=306488 R=robertphillips@google.com, robertphillips Review URL: https://codereview.chromium.org/26799004 git-svn-id: http://skia.googlecode.com/svn/trunk@11733 2bbb7eff-a529-9590-31e7-b0007b416f81
* Implement crop rect support for SkRectShaderImageFilter: remove fRect and ↵Gravatar senorblanco@chromium.org2013-10-10
| | | | | | | | | | use the cropRect from SkImageFilter in its place. R=reed@google.com Review URL: https://codereview.chromium.org/26009004 git-svn-id: http://skia.googlecode.com/svn/trunk@11720 2bbb7eff-a529-9590-31e7-b0007b416f81
* Align SkLumaColorFilter with the spec.Gravatar commit-bot@chromium.org2013-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | The spec requires the resulting RGB channels for LuminanceToAlpha to be 0 (and not just scaled by the luminance value</facepalm>): | R' | | 0 0 0 0 0 | | R | | G' | | 0 0 0 0 0 | | G | | B' | = | 0 0 0 0 0 | * | B | | A' | | 0.2125 0.7154 0.0721 0 0 | | A | | 1 | | 0 0 0 0 1 | | 1 | (http://www.w3.org/TR/2011/REC-SVG11-20110816/filters.html#feColorMatrixElement) This doesn't affect luminance masking (which depends only on the resulting alpha channel), but other color filter users may care about all color components. R=bsalomon@google.com, reed@google.com, robertphillips@google.com Author: fmalita@chromium.org Review URL: https://codereview.chromium.org/26467003 git-svn-id: http://skia.googlecode.com/svn/trunk@11713 2bbb7eff-a529-9590-31e7-b0007b416f81
* Change SkImageFilter's cropRect from SkIRect to a CropRect struct, ↵Gravatar senorblanco@chromium.org2013-10-10
| | | | | | | | | | | | | | containing an SkRect and flags indicating which parameters are set. NOTE: this will require SK_CROP_RECT_IS_INT=1 to be set in Chrome until Blink has been updated to use SkImageFilter::CropRect. Include https://codereview.chromium.org/26528002/ with the Skia roll. Note also that SK_CROP_RECT_IS_INT is a temporary measure until all call sites in Blink have been updated to use SkRect. R=reed@google.com Review URL: https://codereview.chromium.org/26371002 git-svn-id: http://skia.googlecode.com/svn/trunk@11692 2bbb7eff-a529-9590-31e7-b0007b416f81
* Express (GLSL expression, possibly known value) pairs as a classGravatar commit-bot@chromium.org2013-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Express (GLSL expression, possibly known value) pairs as a class instead of two variables Introduces GrGLSLExpr<N> to encapsulate the expression and possibly constant-folded value of the expression. This simplifies passing of the expressions to functions. Changes the shaders with following patterns: { // Stage 0: Linear Gradient vec4 colorTemp = mix(uGradientStartColor_Stage0, uGradientEndColor_Stage0, clamp(vMatrixCoord_Stage0.x, 0.0, 1 colorTemp.rgb *= colorTemp.a; - output_Stage0 = vec4((vColor) * (colorTemp)); + output_Stage0 = (vColor * colorTemp); + } Previously the vector cast was always added if constant folding was effective, regardless of the term dimensions. Now the vector upcast is not inserted in places where it is not needed, ie. when the binary operator term is of the target dimension. Also, some parentheses can be omitted. It is assumed that GrGLSLExpr<N>("string") constructors construct a simple expression or parenthesized expression. Otherwise the shader code remains identical. R=jvanverth@google.com, bsalomon@google.com, robertphillips@google.com Author: kkinnunen@nvidia.com Review URL: https://codereview.chromium.org/25048002 git-svn-id: http://skia.googlecode.com/svn/trunk@11690 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fix uninitialized memory accessGravatar robertphillips@google.com2013-10-08
| | | | | | | | https://codereview.chromium.org/26529002/ git-svn-id: http://skia.googlecode.com/svn/trunk@11658 2bbb7eff-a529-9590-31e7-b0007b416f81
* Luminance-to-alpha color filter (SkLumaColorFilter).Gravatar commit-bot@chromium.org2013-10-07
| | | | | | | | | | | | | Adding a color filter luma implementation. The plan is to convert existing clients and then deprecate SkLumaXfermode. R=bsalomon@google.com, reed@google.com, robertphillips@google.com Author: fmalita@chromium.org Review URL: https://codereview.chromium.org/25453004 git-svn-id: http://skia.googlecode.com/svn/trunk@11636 2bbb7eff-a529-9590-31e7-b0007b416f81
* Allow gradient optimization with perspectiveGravatar commit-bot@chromium.org2013-10-04
| | | | | | | | | | | | | | | | | | | | Before, gradients would only interpolate the linear portion of the quadratic equation if there was no perspective. This updates them to do so even in the case that there is perspective. The rearrangement of math causes noise differences in the following gm tests: gradients_no_texture_gpu gradients_view_perspective_gpu gradients_local_perspective_gpu gradients_gpu R=bsalomon@google.com Author: cdalton@nvidia.com Review URL: https://codereview.chromium.org/25645006 git-svn-id: http://skia.googlecode.com/svn/trunk@11595 2bbb7eff-a529-9590-31e7-b0007b416f81
* Repurpose GrGLCoordTransform as GrGLProgramEffectsGravatar commit-bot@chromium.org2013-10-03
| | | | | | | | | | | | | | Creates a GrGLProgramEffects class that the GrGLProgram uses to manage an array of effects. This gives us enough abstraction for the program to cleanly handle different types of coord transforms. R=bsalomon@google.com Author: cdalton@nvidia.com Review URL: https://codereview.chromium.org/25605008 git-svn-id: http://skia.googlecode.com/svn/trunk@11588 2bbb7eff-a529-9590-31e7-b0007b416f81
* Make GPU coord transforms automaticGravatar bsalomon@google.com2013-10-02
| | | | | | | | | | | | | Adds a GrCoordTransform class and updates the framework to handle coord transforms similar to how it handles textures with GrTextureAccess. Renames GrGLEffectMatrix to GrGLCoordTransform and slightly repurposes it to be used by the framework instead of effects. R=bsalomon@google.com, robertphillips@google.com Review URL: https://codereview.chromium.org/24853002 git-svn-id: http://skia.googlecode.com/svn/trunk@11569 2bbb7eff-a529-9590-31e7-b0007b416f81
* Sanitizing source files in Housekeeper-NightlyGravatar skia.committer@gmail.com2013-09-27
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@11493 2bbb7eff-a529-9590-31e7-b0007b416f81
* Moving 4 SkImageFilter derived classes from blink to skiaGravatar commit-bot@chromium.org2013-09-26
| | | | | | | | | | | | | | | | | | | There were 4 classes in blink that derived from SkImageFilter : - TileImageFilter -> SkTileImageFilter - OffsetImageFilter -> SkOffsetImageFilter (already existed) - FloodImageFilter -> SkFloodImageFilter - CompositeImageFilter -> SkCompositeImageFilter All functions were copied as is, without modification (except for warnings fixes), except for the offset filter, which was merged into the existing SkOffsetImageFilter class, as a special case when a crop rect is provided. Since the names won't clash with the names in blink, it should be easy to integrate them in blink later and fix issues, if needed. BUG= R=senorblanco@google.com, senorblanco@chromium.org, bsalomon@google.com, reed@google.com, mtklein@google.com Author: sugoi@chromium.org Review URL: https://chromiumcodereview.appspot.com/24157005 git-svn-id: http://skia.googlecode.com/svn/trunk@11475 2bbb7eff-a529-9590-31e7-b0007b416f81
* Implement crop rect support for the merge image filter.Gravatar senorblanco@chromium.org2013-09-19
| | | | | | | | | | Note: this will require rebaselining of the imagefilterscropped and testimagefilters GMs. R=reed@google.com Review URL: https://codereview.chromium.org/23600047 git-svn-id: http://skia.googlecode.com/svn/trunk@11387 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fix to allow ovals GM to finish on N7Gravatar commit-bot@chromium.org2013-09-18
| | | | | | | | | | R=jvanverth@google.com, robertphillips@google.com Author: bsalomon@google.com Review URL: https://chromiumcodereview.appspot.com/23477079 git-svn-id: http://skia.googlecode.com/svn/trunk@11340 2bbb7eff-a529-9590-31e7-b0007b416f81
* Implement crop rect for the dilate and erode (morphology) filters. This ↵Gravatar senorblanco@chromium.org2013-09-17
| | | | | | | | | | | | provoked some cleanup on the GPU side: apply_morphology() now deals with SkBitmaps, rather than GrTextures. There's still a clear opportunity for more refactoring between the two filters. Note: this adds some test cases to the morphology GM, so it will require a rebaseline. R=bsalomon@google.com, reed@google.com Review URL: https://codereview.chromium.org/23892011 git-svn-id: http://skia.googlecode.com/svn/trunk@11313 2bbb7eff-a529-9590-31e7-b0007b416f81
* [External patch] Source-over support for SkLumaXfermode.Gravatar fmalita@google.com2013-09-17
| | | | | | | | | | | | | | | | | | | | | | This is a patch by Andrei Parvu <parvu@adobe.com> (Adobe CLA signer). Original CL/review: https://codereview.chromium.org/24078006/ GM:lumamode will need rebaselining after landing this. --- In order to use CSS luminance masking, we need to be able to create an instance of SkLumaXfermode which can receive a kSrcOver mode, and applies that mode after converting the source using the luminance-to-alpha coefficients. BUG=289420 R=reed@google.com Review URL: https://codereview.chromium.org/23710053 git-svn-id: http://skia.googlecode.com/svn/trunk@11312 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert 11247, 11250, 11251, 11257, and 11279 to unblock DEPS roll ↵Gravatar robertphillips@google.com2013-09-16
| | | | | | | | | | | | | | (https://codereview.chromium.org/24159002/) 11279 Sanitizing source files in Housekeeper-Nightly - https://code.google.com/p/skia/source/detail?r=11279 11257 Canary build fix - https://codereview.chromium.org/23532068 11251 More warnings as errors fixes - https://code.google.com/p/skia/source/detail?r=11251 11250 Warnings as errors fix - https://code.google.com/p/skia/source/detail?r=11250 11247 Initial error handling code - https://chromiumcodereview.appspot.com/23021015 git-svn-id: http://skia.googlecode.com/svn/trunk@11288 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert the revert of 11247, 11250, 11251 and 11279 (Chrome already relies on ↵Gravatar robertphillips@google.com2013-09-16
| | | | | | changes in r11247) git-svn-id: http://skia.googlecode.com/svn/trunk@11287 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert 11247, 11250, 11251 and 11279 to unblock DEPS roll ↵Gravatar robertphillips@google.com2013-09-16
| | | | | | | | | | | | | (https://codereview.chromium.org/24159002/) 11279 Sanitizing source files in Housekeeper-Nightly - https://code.google.com/p/skia/source/detail?r=11279 11251 More warnings as errors fixes - https://code.google.com/p/skia/source/detail?r=11251 11250 Warnings as errors fix - https://code.google.com/p/skia/source/detail?r=11250 11247 Initial error handling code - https://chromiumcodereview.appspot.com/23021015 git-svn-id: http://skia.googlecode.com/svn/trunk@11285 2bbb7eff-a529-9590-31e7-b0007b416f81
* Warnings as errors fixGravatar robertphillips@google.com2013-09-13
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@11250 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fixed issues found by fuzzerGravatar commit-bot@chromium.org2013-09-13
| | | | | | | | | | | | | | | Last week, the fuzzer found a few numerical issue with filters and I had written some fixes for them. Here are the fixes with some unit tests. For senorblanco : So I figured out what was asserting when we'd get a 0 width "result" in SkBicubicImageFilter::onFilterImage(). Basically, if the "result" SkBitmap object calls SkBitmap::setConfig() with "width" and/or "height" set to 0, then the SkBitmap object will call SkBitmap::reset(), making the SkBitmap object's config invalid. At this point, calling SkBitmap::getAddr32() will assert, even without attempting to dereference the data pointer, because the SkBitmap's config is invalid. If height is valid, but width is 0, then this call to SkBitmap::getAddr32() happens directly in SkBicubicImageFilter::onFilterImage() a few lines lower and asserts right away. BUG= R=senorblanco@google.com, senorblanco@chromium.org, bsalomon@google.com Author: sugoi@chromium.org Review URL: https://chromiumcodereview.appspot.com/23533042 git-svn-id: http://skia.googlecode.com/svn/trunk@11249 2bbb7eff-a529-9590-31e7-b0007b416f81
* Initial error handling codeGravatar commit-bot@chromium.org2013-09-13
| | | | | | | | | | | | | I made it as simple as possible. The impact seems minimal and it should do what's necessary to make this code secure. BUG= R=reed@google.com, scroggo@google.com, djsollen@google.com, sugoi@google.com, bsalomon@google.com, mtklein@google.com, senorblanco@google.com, senorblanco@chromium.org Author: sugoi@chromium.org Review URL: https://chromiumcodereview.appspot.com/23021015 git-svn-id: http://skia.googlecode.com/svn/trunk@11247 2bbb7eff-a529-9590-31e7-b0007b416f81
* Sanitizing source files in Housekeeper-NightlyGravatar skia.committer@gmail.com2013-09-10
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@11176 2bbb7eff-a529-9590-31e7-b0007b416f81
* Change old PRG to be SkLCGRandom; change new one to SkRandomGravatar commit-bot@chromium.org2013-09-09
| | | | | | | | | | | | | | The goal here is to get people to start using the new random number generator, while leaving the old one in place so we don't have to rebaseline GMs. R=reed@google.com, bsalomon@google.com Author: jvanverth@google.com Review URL: https://chromiumcodereview.appspot.com/23576015 git-svn-id: http://skia.googlecode.com/svn/trunk@11169 2bbb7eff-a529-9590-31e7-b0007b416f81
* Two and three color GPU gradients without textures.Gravatar bsalomon@google.com2013-09-09
| | | | | | | | R=bsalomon@google.com Review URL: https://codereview.chromium.org/22854005 git-svn-id: http://skia.googlecode.com/svn/trunk@11158 2bbb7eff-a529-9590-31e7-b0007b416f81
* Sanitizing source files in Housekeeper-NightlyGravatar skia.committer@gmail.com2013-09-07
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@11143 2bbb7eff-a529-9590-31e7-b0007b416f81
* alpha threshold bitmap shaderGravatar commit-bot@chromium.org2013-09-06
| | | | | | | | | | | | Committed: http://code.google.com/p/skia/source/detail?r=11122 R=reed@google.com Author: bsalomon@google.com Review URL: https://chromiumcodereview.appspot.com/23707019 git-svn-id: http://skia.googlecode.com/svn/trunk@11131 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert "alpha threshold bitmap shader"Gravatar bsalomon@google.com2013-09-05
| | | | | | This reverts commit r11122. git-svn-id: http://skia.googlecode.com/svn/trunk@11123 2bbb7eff-a529-9590-31e7-b0007b416f81
* alpha threshold bitmap shaderGravatar commit-bot@chromium.org2013-09-05
| | | | | | | | | | R=reed@google.com Author: bsalomon@google.com Review URL: https://chromiumcodereview.appspot.com/23707019 git-svn-id: http://skia.googlecode.com/svn/trunk@11122 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add test to exercise extreme blur sigmasGravatar robertphillips@google.com2013-09-05
| | | | | | | | https://codereview.chromium.org/23530039/ git-svn-id: http://skia.googlecode.com/svn/trunk@11099 2bbb7eff-a529-9590-31e7-b0007b416f81
* add support for high quality image filtering on the GPUGravatar humper@google.com2013-09-04
| | | | | | | | R=bsalomon@google.com, reed@google.com Review URL: https://codereview.chromium.org/23779003 git-svn-id: http://skia.googlecode.com/svn/trunk@11087 2bbb7eff-a529-9590-31e7-b0007b416f81
* Hamfisted "fix" for pinterest blur crashGravatar robertphillips@google.com2013-09-03
| | | | | | | | https://codereview.chromium.org/23819014/ git-svn-id: http://skia.googlecode.com/svn/trunk@11057 2bbb7eff-a529-9590-31e7-b0007b416f81
* Isolate VertexBuilder from GrGLShaderBuilderGravatar commit-bot@chromium.org2013-08-30
| | | | | | | | | | | | | | | Adds a nested class to GrGLShaderBuilder called VertexBuilder. Now GrGLShaderBuilder can only modify the fragment shader directly. In order to modify the vertex shader, the client code needs to call getVertexShader, which will return null for vertex-less shaders. R=bsalomon@google.com Author: cdalton@nvidia.com Review URL: https://chromiumcodereview.appspot.com/23754003 git-svn-id: http://skia.googlecode.com/svn/trunk@11046 2bbb7eff-a529-9590-31e7-b0007b416f81
* Rename ShaderType enum to ShaderVisibilityGravatar commit-bot@chromium.org2013-08-30
| | | | | | | | | | | | | | | | | | | | | Renames ShaderType in GrGLShaderBuilder to ShaderVisibility. It is now used solely as a bitfield. Methods that previously accepted a single ShaderType value are split into separate calls: - getShader -> vsGetShader, gsGetShader, fsGetShader - emiitFunction -> fsEmitFunction - appendTextureLookup -> fsAppendTextureLookup No change in functionality. This is a refactoring to allow us to separate the vertex/geometry and fragment parts of GrGLShaderBuilder. R=bsalomon@google.com Author: cdalton@nvidia.com Review URL: https://chromiumcodereview.appspot.com/23826002 git-svn-id: http://skia.googlecode.com/svn/trunk@11044 2bbb7eff-a529-9590-31e7-b0007b416f81
* Split SkDevice into SkBaseDevice and SkBitmapDeviceGravatar robertphillips@google.com2013-08-29
| | | | | | | | https://codereview.chromium.org/22978012/ git-svn-id: http://skia.googlecode.com/svn/trunk@10995 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fix case where GrGLEffectMatrix gives back a dangling ptr for the coords var ↵Gravatar commit-bot@chromium.org2013-08-28
| | | | | | | | | | | | name. R=robertphillips@google.com Author: bsalomon@google.com Review URL: https://chromiumcodereview.appspot.com/23706003 git-svn-id: http://skia.googlecode.com/svn/trunk@10982 2bbb7eff-a529-9590-31e7-b0007b416f81
* Sanitizing source files in Housekeeper-NightlyGravatar skia.committer@gmail.com2013-08-28
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@10968 2bbb7eff-a529-9590-31e7-b0007b416f81
* In image filters, apply the CTM and offset to the crop rect. This is ↵Gravatar senorblanco@chromium.org2013-08-27
| | | | | | | | | | | | | | necessary to compensate for both clipping applied by the compositor (communicated via the CTM) and for cropping applied in upstream image filters (communicated via the offset). This requires a few ugly conversions, since the crop rect is an SkIRect, and the ctm is an SkMatrix. I also had to offset the matrix passed to filter evaluation by drawSprite() and internalDrawBitmap() by the primitive position. This is the same offset that is applied when drawing the primitive, to compensate for the internal saveLayer(). Also apply the total matrix to the filter params in asNewEffect(), so that (for example) lighting params are offset by both the compositor clipping and upstream crop rects. R=reed@google.com Review URL: https://codereview.chromium.org/23295017 git-svn-id: http://skia.googlecode.com/svn/trunk@10961 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fix compiler warning/error in r10936Gravatar robertphillips@google.com2013-08-27
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@10938 2bbb7eff-a529-9590-31e7-b0007b416f81
* Blur refactoringGravatar robertphillips@google.com2013-08-27
| | | | | | | | https://codereview.chromium.org/21835004/ git-svn-id: http://skia.googlecode.com/svn/trunk@10936 2bbb7eff-a529-9590-31e7-b0007b416f81
* Update SkLumaMaskXfermode partial coverage handling.Gravatar fmalita@google.com2013-08-26
| | | | | | | | | | | Use lerp-to-dst instead of straight coverage scaling to align the behavior with the other transfer modes. R=reed@google.com Review URL: https://codereview.chromium.org/23453004 git-svn-id: http://skia.googlecode.com/svn/trunk@10927 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add luminance mask transfer modes.Gravatar commit-bot@chromium.org2013-08-23
| | | | | | | | | | | | | | | | | This adds kSrcInLum_Mode and kDstInLum_Mode, to support CSS and SVG luminance masks (http://www.w3.org/TR/css-masking/#MaskValues , http://www.w3.org/TR/SVG/masking.html#Masking ). The transfer coefficient is computed according to http://www.w3.org/TR/2011/REC-SVG11-20110816/filters.html#feColorMatrixElement "luminance-to-alpha": luma = 0.2125 * r + 0.7154 * g + 0.0721 * b R=bsalomon@google.com, reed@google.com, robertphillips@google.com, vandebo@chromium.org Author: fmalita@chromium.org Review URL: https://chromiumcodereview.appspot.com/22918012 git-svn-id: http://skia.googlecode.com/svn/trunk@10887 2bbb7eff-a529-9590-31e7-b0007b416f81
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