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Improve quality of GDI image scaling #18495

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Merged
DHowett merged 2 commits into from
Feb 3, 2025
Merged

Improve quality of GDI image scaling #18495

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e728f8a
Improve quality of GDI image scaling
j4james Feb 1, 2025
5bc05a3
Add COLORONCOLOR to dictionary
j4james Feb 1, 2025
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1 change: 1 addition & 0 deletions .github/actions/spelling/expect/expect.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -215,6 +215,7 @@ codepages
codepath
coinit
colorizing
COLORONCOLOR
COLORREFs
colorschemes
colorspec
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3 changes: 3 additions & 0 deletions src/renderer/gdi/state.cpp
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Expand Up @@ -128,6 +128,9 @@ GdiEngine::~GdiEngine()
// We need the advanced graphics mode in order to set a transform.
SetGraphicsMode(hdcNewMemoryContext, GM_ADVANCED);

// We set the bitmap stretching mode to improve the Sixel image quality.
SetStretchBltMode(hdcNewMemoryContext, COLORONCOLOR);

// If we had an existing memory context stored, release it before proceeding.
if (nullptr != _hdcMemoryContext)
{
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