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[deploy] pref: cache text outline geometry

This commit is contained in:
Nomango 2023-09-10 22:05:10 +08:00
parent a836c69b37
commit 2fa346783a
1 changed files with 45 additions and 45 deletions
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90
src/kiwano/render/DirectX/TextDrawingEffect.cpp
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@ -18,6 +18,7 @@
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#include <tuple>
#include <kiwano/render/DirectX/TextDrawingEffect.h>
namespace kiwano
@ -42,10 +43,7 @@ private:
ComPtr<ID2D1Factory> pFactory_;
// Outline geometry cache
const DWRITE_GLYPH_RUN* pLastGlyphRun_;
float fLastOriginX_;
float fLastOriginY_;
ComPtr<ID2D1Geometry> pOutlineGeo_;
Map<std::tuple<const DWRITE_GLYPH_RUN*, float, float>, ComPtr<ID2D1Geometry>> outlineCache_;
};
HRESULT ITextDrawingEffect::Create(_Out_ ITextDrawingEffect** ppTextDrawingEffect, _In_ ID2D1Factory* pFactory)
@ -79,9 +77,7 @@ HRESULT ITextDrawingEffect::Create(_Out_ ITextDrawingEffect** ppTextDrawingEffec
TextDrawingEffect::TextDrawingEffect()
: cRefCount_(0)
, pLastGlyphRun_(nullptr)
, fLastOriginX_(0)
, fLastOriginY_(0)
, outlineCache_{}
{
}
@ -95,63 +91,67 @@ STDMETHODIMP TextDrawingEffect::CreateOutlineGeomerty(_Out_ ID2D1Geometry**
_In_ DWRITE_GLYPH_RUN const* glyphRun, float fOriginX,
float fOriginY)
{
auto cache = outlineCache_.find(std::make_tuple(glyphRun, fOriginX, fOriginY));
if (cache != outlineCache_.end())
{
auto& pOutlineGeo = cache->second;
if (pOutlineGeo)
{
// Use cached geometry
pOutlineGeo->AddRef();
DX::SafeRelease(*ppOutlineGeo);
(*ppOutlineGeo) = pOutlineGeo.Get();
return S_OK;
}
}
HRESULT hr = S_OK;
if (pOutlineGeo_ && glyphRun == pLastGlyphRun_ && fOriginX == fLastOriginX_ && fOriginY == fLastOriginY_)
{
// Use cached geometry
pOutlineGeo_->AddRef();
DX::SafeRelease(*ppOutlineGeo);
(*ppOutlineGeo) = pOutlineGeo_.Get();
return S_OK;
}
ComPtr<ID2D1GeometrySink> pSink;
ComPtr<ID2D1PathGeometry> pPathGeometry;
ComPtr<ID2D1TransformedGeometry> pTransformedGeometry;
ComPtr<ID2D1Geometry> pOutlineGeo;
if (SUCCEEDED(hr))
{
ComPtr<ID2D1PathGeometry> pPathGeometry;
hr = pFactory_->CreatePathGeometry(&pPathGeometry);
}
if (SUCCEEDED(hr))
{
hr = pPathGeometry->Open(&pSink);
if (SUCCEEDED(hr))
{
hr = glyphRun->fontFace->GetGlyphRunOutline(
glyphRun->fontEmSize, glyphRun->glyphIndices, glyphRun->glyphAdvances, glyphRun->glyphOffsets,
glyphRun->glyphCount, glyphRun->isSideways, glyphRun->bidiLevel % 2, pSink.Get());
}
if (SUCCEEDED(hr))
{
hr = pSink->Close();
}
if (SUCCEEDED(hr))
{
D2D1::Matrix3x2F const matrix = D2D1::Matrix3x2F(1.0f, 0.0f, 0.0f, 1.0f, fOriginX, fOriginY);
ComPtr<ID2D1GeometrySink> pSink;
hr = pPathGeometry->Open(&pSink);
if (SUCCEEDED(hr))
{
hr = glyphRun->fontFace->GetGlyphRunOutline(
glyphRun->fontEmSize, glyphRun->glyphIndices, glyphRun->glyphAdvances, glyphRun->glyphOffsets,
glyphRun->glyphCount, glyphRun->isSideways, glyphRun->bidiLevel % 2, pSink.Get());
}
if (SUCCEEDED(hr))
{
hr = pSink->Close();
}
if (SUCCEEDED(hr))
{
const auto matrix = D2D1::Matrix3x2F(1.0f, 0.0f, 0.0f, 1.0f, fOriginX, fOriginY);
ComPtr<ID2D1TransformedGeometry> pTransformedGeometry;
hr = pFactory_->CreateTransformedGeometry(pPathGeometry.Get(), &matrix, &pTransformedGeometry);
if (SUCCEEDED(hr))
{
pOutlineGeo = pTransformedGeometry;
}
}
}
}
if (SUCCEEDED(hr))
{
pOutlineGeo_ = pTransformedGeometry;
pLastGlyphRun_ = glyphRun;
fLastOriginX_ = fOriginX;
fLastOriginY_ = fOriginY;
pOutlineGeo_->AddRef();
pOutlineGeo->AddRef();
DX::SafeRelease(*ppOutlineGeo);
(*ppOutlineGeo) = pOutlineGeo_.Get();
(*ppOutlineGeo) = pOutlineGeo.Get();
outlineCache_.insert(std::make_pair(std::make_tuple(glyphRun, fOriginX, fOriginY), pOutlineGeo));
}
return hr;
}