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| author | Fujii Hironori <Hironori.Fujii@sony.com> | 2023-02-10 10:05:57 +0900 |
|---|---|---|
| committer | Fujii Hironori <Hironori.Fujii@sony.com> | 2023-02-10 10:05:57 +0900 |
| commit | adcd1e73254d56d225fe088bfdc19d5af31caa8e (patch) | |
| tree | b6f0a47cec2bc935aa840300242d1012c4467c1b | |
| parent | 876ee0bb49e2bf94bbc4d06514459ae6a31935b2 (diff) | |
| download | cairo-adcd1e73254d56d225fe088bfdc19d5af31caa8e.tar.gz | |
DWrite: glyph surfaces should take subpixel positions into account
Shift the glyph position by phases taken
by _cairo_scaled_glyph_xphase and _cairo_scaled_glyph_yphase.
Fixes #597
| -rw-r--r-- | src/win32/cairo-dwrite-font.cpp | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/src/win32/cairo-dwrite-font.cpp b/src/win32/cairo-dwrite-font.cpp index edd606abe..feec9652e 100644 --- a/src/win32/cairo-dwrite-font.cpp +++ b/src/win32/cairo-dwrite-font.cpp @@ -891,7 +891,6 @@ _cairo_dwrite_scaled_font_init_glyph_color_surface(cairo_dwrite_scaled_font_t *s { int width, height; double x1, y1, x2, y2; - cairo_glyph_t glyph; cairo_bool_t uses_foreground_color = FALSE; cairo_dwrite_font_face_t *dwrite_font_face = (cairo_dwrite_font_face_t *)scaled_font->base.font_face; @@ -908,16 +907,12 @@ _cairo_dwrite_scaled_font_init_glyph_color_surface(cairo_dwrite_scaled_font_t *s width = (int)(x2 - x1); height = (int)(y2 - y1); - glyph.index = _cairo_scaled_glyph_index (scaled_glyph); - glyph.x = x1; - glyph.y = y1; - DWRITE_GLYPH_RUN run; FLOAT advance = 0; - UINT16 index = (UINT16)glyph.index; + UINT16 index = (UINT16)_cairo_scaled_glyph_index (scaled_glyph); DWRITE_GLYPH_OFFSET offset; - double x = -glyph.x; - double y = -glyph.y; + double x = -x1 + .25 * _cairo_scaled_glyph_xphase (scaled_glyph); + double y = -y1 + .25 * _cairo_scaled_glyph_yphase (scaled_glyph); DWRITE_MATRIX matrix; D2D1_POINT_2F origin = {0, 0}; RefPtr<IDWriteColorGlyphRunEnumerator1> run_enumerator; @@ -1131,7 +1126,6 @@ _cairo_dwrite_scaled_font_init_glyph_surface(cairo_dwrite_scaled_font_t *scaled_ cairo_scaled_glyph_t *scaled_glyph) { cairo_int_status_t status; - cairo_glyph_t glyph; cairo_win32_surface_t *surface; cairo_t *cr; cairo_surface_t *image; @@ -1145,16 +1139,12 @@ _cairo_dwrite_scaled_font_init_glyph_surface(cairo_dwrite_scaled_font_t *scaled_ width = (int)(x2 - x1); height = (int)(y2 - y1); - glyph.index = _cairo_scaled_glyph_index (scaled_glyph); - glyph.x = -x1; - glyph.y = -y1; - DWRITE_GLYPH_RUN run; FLOAT advance = 0; - UINT16 index = (UINT16)glyph.index; + UINT16 index = (UINT16)_cairo_scaled_glyph_index (scaled_glyph); DWRITE_GLYPH_OFFSET offset; - double x = glyph.x; - double y = glyph.y; + double x = -x1 + .25 * _cairo_scaled_glyph_xphase (scaled_glyph); + double y = -y1 + .25 * _cairo_scaled_glyph_yphase (scaled_glyph); RECT area; DWRITE_MATRIX matrix; |