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
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
Do this, rather than including common.gypi explicitly in all our gyp files, so that gyp files we use but do not maintain (e.g., third_party/externals/libjpeg/libjpeg.gyp) will include common.gypi too.
Review URL: https://codereview.appspot.com/5820068
git-svn-id: http://skia.googlecode.com/svn/trunk@3411 2bbb7eff-a529-9590-31e7-b0007b416f81
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
SkBlurImageFilter, sets it on an SkPaint, passes that paint to saveLayer(),
draws the primitives which are to be blurred, then calls restore(), which
applies the blur. The blurs have separate sizes in the horizontal and vertical
direction. This feature is GPU-only for now.
NB: Due to the clipping change, there are slight pixel differences on the
blurs_gpu and shadows_gpu tests, so those will require rebaselining on all
platforms, as will some of the WebKit layout tests (TBD).
Review URL: http://codereview.appspot.com/5322068/
git-svn-id: http://skia.googlecode.com/svn/trunk@2643 2bbb7eff-a529-9590-31e7-b0007b416f81
see http://codereview.appspot.com/4527084/
Now, to build out/Debug/SampleApp on Linux, do the following:
cd trunk/gyp
rm -rf Makefile *mk *.Makefile out
./gyp_skia -fmake --ignore-environment "--toplevel-dir=$PWD" \
-Icommon.gypi "--depth=$PWD" SampleApp.gyp
make
git-svn-id: http://skia.googlecode.com/svn/trunk@1446 2bbb7eff-a529-9590-31e7-b0007b416f81
