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Gfx: Make text rendering with D2D more efficient by reusing layout

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This commit is contained in:
Birunthan Mohanathas
2013-03-28 15:51:12 +02:00
parent 71a454f954
commit e5100d9a9f
3 changed files with 57 additions and 13 deletions
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20
Common/Gfx/CanvasD2D.cpp
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@ -278,21 +278,15 @@ void CanvasD2D::DrawTextW(const WCHAR* str, UINT strLen, const TextFormat& forma
HRESULT hr = m_Target->CreateSolidColorBrush(ToColorF(color), &solidBrush);
if (SUCCEEDED(hr))
{
const bool right = ((TextFormatD2D&)format).GetHorizontalAlignment() == Gfx::HorizontalAlignment::Right;
TextFormatD2D& formatD2D = (TextFormatD2D&)format;
const bool right = formatD2D.GetHorizontalAlignment() == Gfx::HorizontalAlignment::Right;
// TODO: Draw cached layout?
//m_Target->DrawTextLayout(
// D2D1::Point2F(right ? rect.X - 2 : rect.X + 2.0f, rect.Y - 1.0f),
// textLayout,
// solidBrush);
formatD2D.CreateLayout(str, strLen, rect.Width, rect.Height);
auto dst = D2D1::RectF(
right ? rect.X - 2 : rect.X + 2.0f,
rect.Y - 1.0f,
(right ? rect.X - 2 : rect.X + 2.0f) + rect.Width,
rect.Y + rect.Height - 1.0f);
m_Target->DrawTextW(str, strLen, ((TextFormatD2D&)format).m_TextFormat, dst, solidBrush);
m_Target->DrawTextLayout(
D2D1::Point2F(right ? rect.X - 2 : rect.X + 2.0f, rect.Y - 1.0f),
formatD2D.m_TextLayout,
solidBrush);
solidBrush->Release();
}