cottongin/crosspoint-reader-mod
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

port: upstream PRs #1311 (inter-word spacing fix) and #1322 (zip early exit)

Browse Source 
PR #1311: Replace separate spaceWidth + getSpaceKernAdjust() with a
single getSpaceAdvance() that combines space glyph advance and kerning
in fixed-point before snapping to pixels, eliminating +/-1 px rounding
drift in text layout.

PR #1322: Add early exit to fillUncompressedSizes() once all target
entries are matched, avoiding unnecessary central directory traversal.

Also updates tracking docs and verifies PR #1329 (reader utils refactor)
matches upstream after merge.

Made-with: Cursor
This commit is contained in:
cottongin
2026-03-08 15:53:13 -04:00
parent 0d8a3fdbdd
commit 255b98bda0
9 changed files with 167 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
lib/GfxRenderer/GfxRenderer.cpp
View File

@@ -1123,13 +1123,15 @@ int GfxRenderer::getSpaceWidth(const int fontId, const EpdFontFamily::Style styl
return spaceGlyph ? fp4::toPixel(spaceGlyph->advanceX) : 0; // snap 12.4 fixed-point to nearest pixel
}
int GfxRenderer::getSpaceKernAdjust(const int fontId, const uint32_t leftCp, const uint32_t rightCp,
const EpdFontFamily::Style style) const {
int GfxRenderer::getSpaceAdvance(const int fontId, const uint32_t leftCp, const uint32_t rightCp,
const EpdFontFamily::Style style) const {
const auto fontIt = fontMap.find(fontId);
if (fontIt == fontMap.end()) return 0;
const auto& font = fontIt->second;
const int kernFP = font.getKerning(leftCp, ' ', style) + font.getKerning(' ', rightCp, style); // 4.4 fixed-point
return fp4::toPixel(kernFP); // snap 4.4 fixed-point to nearest pixel
const EpdGlyph* spaceGlyph = font.getGlyph(' ', style);
if (!spaceGlyph) return 0;
const int spaceAdvanceFP = spaceGlyph->advanceX; // 12.4 fixed-point
return fp4::toPixel(spaceAdvanceFP + font.getKerning(leftCp, ' ', style) + font.getKerning(' ', rightCp, style));
}
int GfxRenderer::getKerning(const int fontId, const uint32_t leftCp, const uint32_t rightCp,