Bug 176531 – [ARM] Building FELightningNEON.cpp fails due to missing {Point,Spot}LightSource declarations

• Component: WebCore Misc.
• Status: RESOLVED FIXED

[Adrian Perez]

SSIA. Compiler output (GCC 6) follows.

---

In file included from platform/graphics/filters/FELighting.cpp:30:0:
platform/graphics/cpu/arm/filters/FELightingNEON.h: In member function ‘void WebCore::FELighting::platformApplyNeon(WebCore::FELighting::LightingData&, WebCore::LightSource::PaintingData&)’:
platform/graphics/cpu/arm/filters/FELightingNEON.h:119:9: error: ‘PointLightSource’ was not declared in this scope
         PointLightSource* pointLightSource = static_cast<PointLightSource*>(m_lightSource.get());
         ^~~~~~~~~~~~~~~~
platform/graphics/cpu/arm/filters/FELightingNEON.h:127:9: error: ‘SpotLightSource’ was not declared in this scope
         SpotLightSource* spotLightSource = static_cast<SpotLightSource*>(m_lightSource.get());
         ^~~~~~~~~~~~~~~

[Adrian Perez]

After adding the needed #include incantations, the compiler keeps
complaining (output below). From a cursory glance it looks like some
downcasting might be needed, I'm taking a look at the code.

---

In file included from platform/graphics/cpu/arm/filters/FELightingNEON.cpp:28:0:
platform/graphics/cpu/arm/filters/FELightingNEON.h: In member function ‘void WebCore::FELighting::platformApplyNeon(WebCore::FELighting::LightingData&, WebCore::LightSource::PaintingData&)’:
platform/graphics/cpu/arm/filters/FELightingNEON.h:121:96: error: invalid static_cast from type ‘WebCore::LightSource’ to type ‘WebCore::PointLightSource*’
         PointLightSource* pointLightSource = static_cast<PointLightSource*>(m_lightSource.get());
                                                                                                ^
platform/graphics/cpu/arm/filters/FELightingNEON.h:128:93: error: invalid static_cast from type ‘WebCore::LightSource’ to type ‘WebCore::SpotLightSource*’
         SpotLightSource* spotLightSource = static_cast<SpotLightSource*>(m_lightSource.get());
                                                                                             ^

[Adrian Perez]

(In reply to Adrian Perez from comment #1)
> After adding the needed #include incantations, the compiler keeps
> complaining (output below). From a cursory glance it looks like some
> downcasting might be needed, I'm taking a look at the code.

Noup, m_lightSource is a Ref<LightSource>, and the Ref<T>::get() returns
a reference. The code has to be updated to make casts to the correct
reference types, and member access using the dot operator instead.

I'll be submitting a patch momentarily.

[Adrian Perez]

Created attachment 320124 [details]
Patch

[Adrian Perez]

Created attachment 320132 [details]
Patch (v2)

Now this version does the casts properly O:-)

[WebKit Commit Bot]

Comment on attachment 320132 [details]
Patch (v2)

Clearing flags on attachment: 320132

Committed r221742: <http://trac.webkit.org/changeset/221742>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.

[Radar WebKit Bug Importer]

<rdar://problem/34693504>