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path: root/include/effects/SkLightingImageFilter.h
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* Refactor read and write buffers.Gravatar commit-bot@chromium.org2014-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Eliminates SkFlattenable{Read,Write}Buffer, promoting SkOrdered{Read,Write}Buffer a step each in the hierarchy. What used to be this: SkFlattenableWriteBuffer -> SkOrderedWriteBuffer SkFlattenableReadBuffer -> SkOrderedReadBuffer SkFlattenableReadBuffer -> SkValidatingReadBuffer is now SkWriteBuffer SkReadBuffer -> SkValidatingReadBuffer Benefits: - code is simpler, names are less wordy - the generic SkFlattenableFooBuffer code in SkPaint was incorrect; removed - write buffers are completely devirtualized, important for record speed This refactoring was mostly mechanical. You aren't going to find anything interesting in files with less than 10 lines changed. BUG=skia: R=reed@google.com, scroggo@google.com, djsollen@google.com, mtklein@google.com Author: mtklein@chromium.org Review URL: https://codereview.chromium.org/134163010 git-svn-id: http://skia.googlecode.com/svn/trunk@13245 2bbb7eff-a529-9590-31e7-b0007b416f81
* remove SkScalarMul from public headersGravatar reed@google.com2014-01-27
| | | | | | | | BUG=skia: Review URL: https://codereview.chromium.org/132453008 git-svn-id: http://skia.googlecode.com/svn/trunk@13189 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
* 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
* 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
* 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
* 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
* Change SkLightingImageFilter to derive from SkSingleInputImageFilter, so ↵Gravatar senorblanco@chromium.org2012-10-05
| | | | | | | | | | that it can participate in filter DAGs. No tests yet. Review URL: https://codereview.appspot.com/6620055 git-svn-id: http://skia.googlecode.com/svn/trunk@5832 2bbb7eff-a529-9590-31e7-b0007b416f81
* This patch implements the diffuse and specular lighting filters in Ganesh. Gravatar senorblanco@chromium.org2012-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | There are three light types for each: distant, point and spot, whose code generation lives in a GrGLLight class hierarchy. This similar to the CPU implementation, where each light type provides a function to compute the vector from the surface plane to the light (surfaceToLight) and to compute the light colour (emitLightColour). Instead of templated member functions, as in the CPU implementation, these are virtual functions to emit the light-specific GLSL code. All of the code for the GPU path lives in the same file as that for the CPU path, SkLightingImageFilter.cpp. In order to provide Ganesh a hook to access it, SkImageFilter now has a asNewCustomStage() virtual, which allows an image filter to return a GrCustomStage representing that filter. Note that this patch does not handle the border conditions correctly (the [top|bottom][Left|Right]Normal() functions in the CPU implementation). That will come in a future patch. Review URL: http://codereview.appspot.com/6345081/ git-svn-id: http://skia.googlecode.com/svn/trunk@4535 2bbb7eff-a529-9590-31e7-b0007b416f81
* Minor cleanup in lighting image filters: Made the light color a member of theGravatar senorblanco@chromium.org2012-07-09
| | | | | | | | | | | light, rather than the filter, so computation is localized. Changed a couple of non-const refs in the image filter creation API const refs. Changed "const SkColor&" to "SkColor", since it's just a uint32_t anyway. Review URL: http://codereview.appspot.com/6352071/ git-svn-id: http://skia.googlecode.com/svn/trunk@4466 2bbb7eff-a529-9590-31e7-b0007b416f81
* Cleanup flattening code to properly serialize lighting image filters.Gravatar djsollen@google.com2012-06-26
| | | | | | Review URL: https://codereview.appspot.com/6333070 git-svn-id: http://skia.googlecode.com/svn/trunk@4340 2bbb7eff-a529-9590-31e7-b0007b416f81
* Raster implementation of diffuse and specular lighting filters. Externally,Gravatar senorblanco@chromium.org2012-06-22
the caller instantiates a light (distant, point or spot), and an SkDiffuseLightingFilter or SkSpecularLightingImageFilter with that light. A Sobel edge detection filter is applied to the alpha of the incoming bitmap, and the result is used as a height map for lighting calculations. Review URL: http://codereview.appspot.com/6302101/ git-svn-id: http://skia.googlecode.com/svn/trunk@4314 2bbb7eff-a529-9590-31e7-b0007b416f81