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bug#16736: Compiling a Lisp file causes display to flash off and on
From: |
Eli Zaretskii |
Subject: |
bug#16736: Compiling a Lisp file causes display to flash off and on |
Date: |
Mon, 17 Feb 2014 17:42:45 +0200 |
> From: Glenn Morris <rgm@gnu.org>
> Cc: 16736@debbugs.gnu.org, rudalics@gmx.at
> Date: Mon, 17 Feb 2014 02:45:40 -0500
>
> Eli Zaretskii wrote:
>
> > if (new_text_height == FRAME_TEXT_HEIGHT (f)
> > && new_text_width == FRAME_TEXT_WIDTH (f)
> > && new_root_width == old_root_width
> > && (FRAME_PIXEL_HEIGHT (f) ==
> > FRAME_TEXT_TO_PIXEL_HEIGHT (f, new_text_height))
> > && (FRAME_PIXEL_WIDTH (f) ==
> > FRAME_TEXT_TO_PIXEL_WIDTH (f, new_text_width)))
> > return;
>
> new_text_height = 570 = FRAME_TEXT_HEIGHT (f)
> new_text_width = 640 = FRAME_TEXT_WIDTH (f)
> new_root_width = 672 = old_root_width
>
> FRAME_PIXEL_HEIGHT (f) = 605
> FRAME_TEXT_TO_PIXEL_HEIGHT (f, new_text_height) = 572
> new_text_height = 570
Looks like FRAME_PIXEL_HEIGHT includes the tool bar, and is thus 33
pixels larger than we expect. (What is f->tool_bar_height?) But I
cannot find the place where we assign any value to FRAME_PIXEL_HEIGHT,
except in this very function, so I'm unsure where do those extra 33
pixels come from.
Glenn, if you put a breakpoint in change_frame_size_1 and then just
"run -Q", can you show all the calls you see until Emacs starts up,
including the arguments we pass to that function? Here's what I see
on Windows:
(gdb) break change_frame_size_1
Breakpoint 3 at 0x100d809: file dispnew.c, line 5467.
(gdb) r -Q
Starting program: D:\gnu\bzr\emacs\trunk\src\emacs.exe -Q
[New Thread 2272.0x13c0]
[New Thread 2272.0x1790]
[New Thread 2272.0x324]
Breakpoint 3, change_frame_size_1 (f=0x394a9d8, new_width=80, new_height=160,
pretend=true, delay=false, safe=false, pixelwise=true) at dispnew.c:5467
5467 int old_root_width = WINDOW_PIXEL_WIDTH (XWINDOW (FRAME_ROOT_WINDOW
(f)));
(gdb) c
Continuing.
Breakpoint 3, change_frame_size_1 (f=0x394a9d8, new_width=640,
new_height=608, pretend=false, delay=true, safe=false, pixelwise=true)
at dispnew.c:5467
5467 int old_root_width = WINDOW_PIXEL_WIDTH (XWINDOW (FRAME_ROOT_WINDOW
(f)));
(gdb)
Continuing.
Breakpoint 3, change_frame_size_1 (f=0x394a9d8, new_width=640,
new_height=608, pretend=false, delay=true, safe=false, pixelwise=true)
at dispnew.c:5467
5467 int old_root_width = WINDOW_PIXEL_WIDTH (XWINDOW (FRAME_ROOT_WINDOW
(f)));
(gdb)
Continuing.
Breakpoint 3, change_frame_size_1 (f=0x394a9d8, new_width=640,
new_height=608, pretend=false, delay=false, safe=false, pixelwise=true)
at dispnew.c:5467
5467 int old_root_width = WINDOW_PIXEL_WIDTH (XWINDOW (FRAME_ROOT_WINDOW
(f)));
(gdb)
Continuing.
Breakpoint 3, change_frame_size_1 (f=0x394a9d8, new_width=0, new_height=0,
pretend=false, delay=false, safe=false, pixelwise=true) at dispnew.c:5467
5467 int old_root_width = WINDOW_PIXEL_WIDTH (XWINDOW (FRAME_ROOT_WINDOW
(f)));
(gdb)
Continuing.
Breakpoint 3, change_frame_size_1 (f=0x394a9d8, new_width=640,
new_height=608, pretend=true, delay=false, safe=false, pixelwise=true)
at dispnew.c:5467
5467 int old_root_width = WINDOW_PIXEL_WIDTH (XWINDOW (FRAME_ROOT_WINDOW
(f)));
(gdb)
Continuing.
(The 640x608 size corresponds to the 80x35 text size I get (35
includes the mode line and the echo area), plus the equivalent of 3
text lines used for the tool bar.)
- bug#16736: Compiling a Lisp file causes display to flash off and on, (continued)
- bug#16736: Compiling a Lisp file causes display to flash off and on, Glenn Morris, 2014/02/15
- bug#16736: Compiling a Lisp file causes display to flash off and on, Glenn Morris, 2014/02/15
- bug#16736: Compiling a Lisp file causes display to flash off and on, martin rudalics, 2014/02/16
- bug#16736: Compiling a Lisp file causes display to flash off and on, Eli Zaretskii, 2014/02/16
- bug#16736: Compiling a Lisp file causes display to flash off and on, martin rudalics, 2014/02/16
- bug#16736: Compiling a Lisp file causes display to flash off and on, Glenn Morris, 2014/02/16
- bug#16736: Compiling a Lisp file causes display to flash off and on, Eli Zaretskii, 2014/02/16
- bug#16736: Compiling a Lisp file causes display to flash off and on, Glenn Morris, 2014/02/16
- bug#16736: Compiling a Lisp file causes display to flash off and on, Eli Zaretskii, 2014/02/17
- bug#16736: Compiling a Lisp file causes display to flash off and on, Glenn Morris, 2014/02/17
- bug#16736: Compiling a Lisp file causes display to flash off and on,
Eli Zaretskii <=
- bug#16736: Compiling a Lisp file causes display to flash off and on, martin rudalics, 2014/02/17
- bug#16736: Compiling a Lisp file causes display to flash off and on, Eli Zaretskii, 2014/02/17
- bug#16736: Compiling a Lisp file causes display to flash off and on, martin rudalics, 2014/02/17
- bug#16736: Compiling a Lisp file causes display to flash off and on, Eli Zaretskii, 2014/02/17
- bug#16736: Compiling a Lisp file causes display to flash off and on, martin rudalics, 2014/02/17
- bug#16736: Compiling a Lisp file causes display to flash off and on, Eli Zaretskii, 2014/02/17
- bug#16736: Compiling a Lisp file causes display to flash off and on, martin rudalics, 2014/02/18
- bug#16736: Compiling a Lisp file causes display to flash off and on, Eli Zaretskii, 2014/02/18
- bug#16736: Compiling a Lisp file causes display to flash off and on, martin rudalics, 2014/02/19
- bug#16736: Compiling a Lisp file causes display to flash off and on, Glenn Morris, 2014/02/18