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master eb9dd32130: Make cursor alpha consistent with a transparent backg


From: Po Lu
Subject: master eb9dd32130: Make cursor alpha consistent with a transparent background
Date: Mon, 31 Jan 2022 00:07:01 -0500 (EST)

branch: master
commit eb9dd321309d08708d65ad0c002238275c35c651
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Make cursor alpha consistent with a transparent background
    
    * src/xfont.c (xfont_draw):
    * src/xftfont.c (xftfont_shape):
    * src/xterm.c (x_clear_glyph_string_rect): Don't respect
    background alpha when drawing the cursor.
---
 src/xfont.c   | 3 ++-
 src/xftfont.c | 2 +-
 src/xterm.c   | 4 +++-
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/xfont.c b/src/xfont.c
index 7a50378a00..78f5f19bc8 100644
--- a/src/xfont.c
+++ b/src/xfont.c
@@ -1016,7 +1016,8 @@ xfont_draw (struct glyph_string *s, int from, int to, int 
x, int y,
          int height = FONT_HEIGHT (s->font), ascent = FONT_BASE (s->font);
 
          x_xr_apply_ext_clip (s->f, gc);
-         x_xrender_color_from_gc_background (s->f, gc, &xc, true);
+         x_xrender_color_from_gc_background (s->f, gc, &xc,
+                                             s->hl != DRAW_CURSOR);
          XRenderFillRectangle (FRAME_X_DISPLAY (s->f),
                                PictOpSrc, FRAME_X_PICTURE (s->f),
                                &xc, x, y - ascent, s->width, height);
diff --git a/src/xftfont.c b/src/xftfont.c
index 1fcc0f4528..cfbf7cdc7a 100644
--- a/src/xftfont.c
+++ b/src/xftfont.c
@@ -519,7 +519,7 @@ xftfont_draw (struct glyph_string *s, int from, int to, int 
x, int y,
                                                 0, 0, s->clip, s->num_clips);
              else
                x_xr_reset_ext_clip (f);
-             x_xrender_color_from_gc_background (s->f, s->gc, &xc, true);
+             x_xrender_color_from_gc_background (s->f, s->gc, &xc, s->hl != 
DRAW_CURSOR);
              XRenderFillRectangle (FRAME_X_DISPLAY (s->f),
                                    PictOpSrc, FRAME_X_PICTURE (s->f),
                                    &xc, x, y - ascent, s->width, height);
diff --git a/src/xterm.c b/src/xterm.c
index e7019a3a74..edafd88211 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -2357,7 +2357,9 @@ x_compute_glyph_string_overhangs (struct glyph_string *s)
 static void
 x_clear_glyph_string_rect (struct glyph_string *s, int x, int y, int w, int h)
 {
-  x_clear_rectangle (s->f, s->gc, x, y, w, h, true);
+  x_clear_rectangle (s->f, s->gc, x, y, w, h,
+                    (s->first_glyph->type != STRETCH_GLYPH
+                     || s->hl != DRAW_CURSOR));
 }
 
 



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