git_clone/thorvg
1
0
Fork 0
mirror of https://github.com/thorvg/thorvg.git synced 2025-06-15 12:34:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 5

renderer: caching the viewport update

Browse source 
reuse cached scene viewport data if scene had no update before,
just a minor optimization
This commit is contained in:
Hermet Park 2025-06-12 16:06:51 +09:00 • committed by Hermet Park
parent 3eaf110e0a
commit 8f10f45756
1 changed files with 13 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
src/renderer/tvgScene.h
View file

@ -68,6 +68,7 @@ struct SceneImpl : Scene
Array<RenderEffect*>* effects = nullptr; Array<RenderEffect*>* effects = nullptr;
uint8_t compFlag = CompositionFlag::Invalid; uint8_t compFlag = CompositionFlag::Invalid;
uint8_t opacity; //for composition uint8_t opacity; //for composition
bool vdirty = false;
SceneImpl() : impl(Paint::Impl(this)) SceneImpl() : impl(Paint::Impl(this))
{ {
@ -105,7 +106,7 @@ struct SceneImpl : Scene
RenderData update(RenderMethod* renderer, const Matrix& transform, Array<RenderData>& clips, uint8_t opacity, RenderUpdateFlag flag, TVG_UNUSED bool clipper) RenderData update(RenderMethod* renderer, const Matrix& transform, Array<RenderData>& clips, uint8_t opacity, RenderUpdateFlag flag, TVG_UNUSED bool clipper)
{ {
this->vport = renderer->viewport(); if (paints.empty()) return nullptr;
if (needComposition(opacity)) { if (needComposition(opacity)) {
/* Overriding opacity value. If this scene is half-translucent, /* Overriding opacity value. If this scene is half-translucent,
@ -123,11 +124,17 @@ struct SceneImpl : Scene
} }
} }
//this viewport update is more performant than in bounds()?
vport = renderer->viewport();
vdirty = true;
return nullptr; return nullptr;
} }
bool render(RenderMethod* renderer) bool render(RenderMethod* renderer)
{ {
if (paints.empty()) return true;
RenderCompositor* cmp = nullptr; RenderCompositor* cmp = nullptr;
auto ret = true; auto ret = true;
@ -157,9 +164,11 @@ struct SceneImpl : Scene
return ret; return ret;
} }
RenderRegion bounds(RenderMethod* renderer) const RenderRegion bounds(RenderMethod* renderer)
{ {
if (paints.empty()) return {}; if (paints.empty()) return {};
if (!vdirty) return vport;
vdirty = false;
//Merge regions //Merge regions
RenderRegion pRegion = {{INT32_MAX, INT32_MAX}, {0, 0}}; RenderRegion pRegion = {{INT32_MAX, INT32_MAX}, {0, 0}};
@ -185,8 +194,8 @@ struct SceneImpl : Scene
pRegion.max.x += eRegion.max.x; pRegion.max.x += eRegion.max.x;
pRegion.max.y += eRegion.max.y; pRegion.max.y += eRegion.max.y;
pRegion.intersect(this->vport); vport = RenderRegion::intersect(vport, pRegion);
return pRegion; return vport;
} }
Result bounds(Point* pt4, Matrix& m, bool obb, bool stroking) Result bounds(Point* pt4, Matrix& m, bool obb, bool stroking)