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renderer/scene: rectify the render region elaboration

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Properly clip the render region to the current viewport.
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Hermet Park 2024-09-29 14:30:45 +09:00 • committed by Hermet Park
parent 27f173faa3
commit bbe69578a5
1 changed files with 7 additions and 1 deletions
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8
src/renderer/tvgScene.h
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@ -60,6 +60,7 @@ struct Scene::Impl
list<Paint*> paints;
RenderData rd = nullptr;
Scene* scene = nullptr;
RenderRegion vport = {0, 0, INT32_MAX, INT32_MAX};
Array<RenderEffect*>* effects = nullptr;
uint8_t opacity; //for composition
bool needComp = false; //composite or not
@ -108,6 +109,8 @@ struct Scene::Impl
RenderData update(RenderMethod* renderer, const Matrix& transform, Array<RenderData>& clips, uint8_t opacity, RenderUpdateFlag flag, TVG_UNUSED bool clipper)
{
this->vport = renderer->viewport();
if ((needComp = needComposition(opacity))) {
/* Overriding opacity value. If this scene is half-translucent,
It must do intermediate composition with that opacity value. */
@ -182,7 +185,10 @@ struct Scene::Impl
}
}
}
return {x1 + ex, y1 + ey, (x2 - x1) + ew, (y2 - y1) + eh};
auto ret = RenderRegion{x1 + ex, y1 + ey, (x2 - x1) + ew, (y2 - y1) + eh};
ret.intersect(this->vport);
return ret;
}
bool bounds(float* px, float* py, float* pw, float* ph, bool stroking)