Lars Ingebrigtsen <larsi@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Received: (at 37153) by debbugs.gnu.org; 24 Sep 2019 17:14:41 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Sep 24 13:14:41 2019 Received: from localhost ([127.0.0.1]:40057 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1iCoOf-0001UL-AT for submit <at> debbugs.gnu.org; Tue, 24 Sep 2019 13:14:41 -0400 Received: from eggs.gnu.org ([209.51.188.92]:59126) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1iCoOd-0001U9-5l for 37153 <at> debbugs.gnu.org; Tue, 24 Sep 2019 13:14:39 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:45250) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <eliz@HIDDEN>) id 1iCoOX-00067K-CL; Tue, 24 Sep 2019 13:14:33 -0400 Received: from [176.228.60.248] (port=2600 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1iCoOW-0006nC-AJ; Tue, 24 Sep 2019 13:14:32 -0400 Date: Tue, 24 Sep 2019 20:14:17 +0300 Message-Id: <83muetobva.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Lars Ingebrigtsen <larsi@HIDDEN> In-reply-to: <878sqdzmqp.fsf@HIDDEN> (message from Lars Ingebrigtsen on Tue, 24 Sep 2019 18:23:58 +0200) Subject: Re: bug#37153: 26.1; some png images scrambled References: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> <44134.15891.158963.23904@HIDDEN> <9c4c68ebe20cbcc44763be8e72bd25eb.squirrel@HIDDEN> <5136.20784.40920.23906@HIDDEN> <wlwof1ive4.wl-mituharu@HIDDEN> <4a893dc7-659a-be76-01d3-3f0a4de57ba4@HIDDEN> <wlblwckfwg.wl-mituharu@HIDDEN> <023ff38a-104e-be32-b605-94caecd3fb2d@HIDDEN> <878sqdzmqp.fsf@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org, eggert@HIDDEN, winkler@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Lars Ingebrigtsen <larsi@HIDDEN> > Date: Tue, 24 Sep 2019 18:23:58 +0200 > Cc: 37153 <at> debbugs.gnu.org, Roland Winkler <winkler@HIDDEN> > > The PNGs in question display well for me as well, so was the conclusion > here that this is now fixed? > > Except possibly on Windows? Yes, they don't display correctly on Windows.
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 24 Sep 2019 16:24:11 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Sep 24 12:24:11 2019 Received: from localhost ([127.0.0.1]:39952 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1iCnbn-0002PQ-D1 for submit <at> debbugs.gnu.org; Tue, 24 Sep 2019 12:24:11 -0400 Received: from quimby.gnus.org ([80.91.231.51]:39684) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <larsi@HIDDEN>) id 1iCnbh-0002PA-W6 for 37153 <at> debbugs.gnu.org; Tue, 24 Sep 2019 12:24:07 -0400 Received: from cm-84.212.202.86.getinternet.no ([84.212.202.86] helo=marnie) by quimby.gnus.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from <larsi@HIDDEN>) id 1iCnbb-00015a-FH; Tue, 24 Sep 2019 18:24:02 +0200 From: Lars Ingebrigtsen <larsi@HIDDEN> To: Paul Eggert <eggert@HIDDEN> Subject: Re: bug#37153: 26.1; some png images scrambled References: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> <44134.15891.158963.23904@HIDDEN> <9c4c68ebe20cbcc44763be8e72bd25eb.squirrel@HIDDEN> <5136.20784.40920.23906@HIDDEN> <wlwof1ive4.wl-mituharu@HIDDEN> <4a893dc7-659a-be76-01d3-3f0a4de57ba4@HIDDEN> <wlblwckfwg.wl-mituharu@HIDDEN> <023ff38a-104e-be32-b605-94caecd3fb2d@HIDDEN> Date: Tue, 24 Sep 2019 18:23:58 +0200 In-Reply-To: <023ff38a-104e-be32-b605-94caecd3fb2d@HIDDEN> (Paul Eggert's message of "Sun, 25 Aug 2019 16:39:11 -0700") Message-ID: <878sqdzmqp.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Report: Spam detection software, running on the system "quimby.gnus.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Paul Eggert <eggert@HIDDEN> writes: > Thanks for catching my mistake. I installed the attached patch, which > is closer to the code you originally suggested. With it, displaying > one of the images you suggested looks like the attached [...] Content analysis details: (-2.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org, Roland Winkler <winkler@HIDDEN>, YAMAMOTO Mitsuharu <mituharu@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) Paul Eggert <eggert@HIDDEN> writes: > Thanks for catching my mistake. I installed the attached patch, which > is closer to the code you originally suggested. With it, displaying > one of the images you suggested looks like the attached image; hope > it's what you're looking for. (I disabled font-lock-mode as you also > suggested.) The PNGs in question display well for me as well, so was the conclusion here that this is now fixed? Except possibly on Windows? -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
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Subject: Re: bug#37153: 26.1; some png images scrambled
To: YAMAMOTO Mitsuharu <mituharu@HIDDEN>
References: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN>
<44134.15891.158963.23904@HIDDEN>
<9c4c68ebe20cbcc44763be8e72bd25eb.squirrel@HIDDEN>
<5136.20784.40920.23906@HIDDEN>
<wlwof1ive4.wl-mituharu@HIDDEN>
<4a893dc7-659a-be76-01d3-3f0a4de57ba4@HIDDEN>
<wlblwckfwg.wl-mituharu@HIDDEN>
From: Paul Eggert <eggert@HIDDEN>
Organization: UCLA Computer Science Department
Message-ID: <023ff38a-104e-be32-b605-94caecd3fb2d@HIDDEN>
Date: Sun, 25 Aug 2019 16:39:11 -0700
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YAMAMOTO Mitsuharu wrote:
> At least, your patch misses the case of non-paletted transparent PNGs
> (tb???c?? in http://www.schaik.com/pngsuite2011/pngsuite_trn_png.html).
Thanks for catching my mistake. I installed the attached patch, which is closer
to the code you originally suggested. With it, displaying one of the images you
suggested looks like the attached image; hope it's what you're looking for. (I
disabled font-lock-mode as you also suggested.)
--------------F0AB3185895160A38CF55F9A
Content-Type: text/x-patch;
name="0001-Fix-bug-with-non-paletted-transparent-PNGs.patch"
Content-Transfer-Encoding: 7bit
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filename="0001-Fix-bug-with-non-paletted-transparent-PNGs.patch"
From d3b17dd5f5e3805342dbe4ae20706e9520c48179 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@HIDDEN>
Date: Sun, 25 Aug 2019 16:35:43 -0700
Subject: [PATCH] Fix bug with non-paletted transparent PNGs
Adapted from a fix by YAMAMOTO Mitsuharu (Bug#37153#77).
* src/image.c (png_load_body): Fix bug with non-paletted
transparent images.
---
src/image.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/src/image.c b/src/image.c
index 18495612e9..fe7bd90b05 100644
--- a/src/image.c
+++ b/src/image.c
@@ -6598,15 +6598,16 @@ png_load_body (struct frame *f, struct image *img, struct png_load_context *c)
# ifdef PNG_tRNS_SUPPORTED
png_bytep trans_alpha;
int num_trans;
- if (png_get_tRNS (png_ptr, info_ptr, &trans_alpha, &num_trans, NULL)
- && trans_alpha)
+ if (png_get_tRNS (png_ptr, info_ptr, &trans_alpha, &num_trans, NULL))
{
- int i;
- for (i = 0; i < num_trans; i++)
- if (0 < trans_alpha[i] && trans_alpha[i] < 255)
- break;
- if (! (i < num_trans))
- transparent_p = true;
+ transparent_p = true;
+ if (trans_alpha)
+ for (int i = 0; i < num_trans; i++)
+ if (0 < trans_alpha[i] && trans_alpha[i] < 255)
+ {
+ transparent_p = false;
+ break;
+ }
}
# endif
--
2.17.1
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--------------F0AB3185895160A38CF55F9A--
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 25 Aug 2019 23:06:07 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Aug 25 19:06:07 2019 Received: from localhost ([127.0.0.1]:45235 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i21aJ-0006v0-4U for submit <at> debbugs.gnu.org; Sun, 25 Aug 2019 19:06:07 -0400 Received: from mathmail.math.s.chiba-u.ac.jp ([133.82.132.2]:62255) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <mituharu@HIDDEN>) id 1i21aG-0006ur-He for 37153 <at> debbugs.gnu.org; Sun, 25 Aug 2019 19:06:05 -0400 Received: from mathent.math.s.chiba-u.ac.jp (mathent [192.168.32.5]) by mathmail.math.s.chiba-u.ac.jp (Postfix) with ESMTP id 24CBAF08E0; Mon, 26 Aug 2019 08:06:05 +0900 (JST) (envelope-from mituharu@HIDDEN) Date: Mon, 26 Aug 2019 08:06:05 +0900 Message-ID: <wlo90c976q.wl-mituharu@HIDDEN> From: YAMAMOTO Mitsuharu <mituharu@HIDDEN> To: Paul Eggert <eggert@HIDDEN> Subject: Re: bug#37153: 26.1; some png images scrambled In-Reply-To: <wlblwckfwg.wl-mituharu@HIDDEN> References: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> <44134.15891.158963.23904@HIDDEN> <9c4c68ebe20cbcc44763be8e72bd25eb.squirrel@HIDDEN> <5136.20784.40920.23906@HIDDEN> <wlwof1ive4.wl-mituharu@HIDDEN> <4a893dc7-659a-be76-01d3-3f0a4de57ba4@HIDDEN> <wlblwckfwg.wl-mituharu@HIDDEN> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM/1.14.9 (=?ISO-8859-4?Q?Goj=F2?=) APEL/10.8 EasyPG/1.0.0 Emacs/25.3 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) Organization: Faculty of Science, Chiba University MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org, Roland Winkler <winkler@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On Mon, 26 Aug 2019 08:02:23 +0900, YAMAMOTO Mitsuharu wrote: > > On Mon, 26 Aug 2019 03:38:07 +0900, > Paul Eggert wrote: > > > > YAMAMOTO Mitsuharu wrote: > > > > > It seems to be necessary to look into the tRNS chunk data for paletted > > > images. Again, W32 would need some more work. > > > > Thanks, I confirmed that this fixes the misdisplay for me as well. I > > attempted to port it to w32 (as well as to unusual libpng builds that > > do not define PNG_tRNS_SUPPORTED) and installed the attached into > > master. > > > > With this patch on Ubuntu 18.04.3 I always see the first image shown > > in your tRNS.pg screenshot <https://bugs.gnu.org/37153#56>. So it may > > be that more work needs to be done to support other faces. Still, this > > patch is an improvement so it's worth going in. > > At least, your patch misses the case of non-paletted transparent PNGs > (tb???c?? in http://www.schaik.com/pngsuite2011/pngsuite_trn_png.html). And you would need to turn off font-lock-mode (or start Emacs with -D) to replicate my tRNS.png screenshot. YAMAMOTO Mitsuharu mituharu@HIDDEN
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
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From: YAMAMOTO Mitsuharu <mituharu@HIDDEN>
To: Paul Eggert <eggert@HIDDEN>
Subject: Re: bug#37153: 26.1; some png images scrambled
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On Mon, 26 Aug 2019 03:38:07 +0900,
Paul Eggert wrote:
>
> YAMAMOTO Mitsuharu wrote:
>
> > It seems to be necessary to look into the tRNS chunk data for paletted
> > images. Again, W32 would need some more work.
>
> Thanks, I confirmed that this fixes the misdisplay for me as well. I
> attempted to port it to w32 (as well as to unusual libpng builds that
> do not define PNG_tRNS_SUPPORTED) and installed the attached into
> master.
>
> With this patch on Ubuntu 18.04.3 I always see the first image shown
> in your tRNS.pg screenshot <https://bugs.gnu.org/37153#56>. So it may
> be that more work needs to be done to support other faces. Still, this
> patch is an improvement so it's worth going in.
At least, your patch misses the case of non-paletted transparent PNGs
(tb???c?? in http://www.schaik.com/pngsuite2011/pngsuite_trn_png.html).
YAMAMOTO Mitsuharu
mituharu@HIDDEN
diff --git a/src/image.c b/src/image.c
index 18495612e98..8c4ab096938 100644
--- a/src/image.c
+++ b/src/image.c
@@ -6598,15 +6598,19 @@ png_load_body (struct frame *f, struct image *img, struct png_load_context *c)
# ifdef PNG_tRNS_SUPPORTED
png_bytep trans_alpha;
int num_trans;
- if (png_get_tRNS (png_ptr, info_ptr, &trans_alpha, &num_trans, NULL)
- && trans_alpha)
+ if (png_get_tRNS (png_ptr, info_ptr, &trans_alpha, &num_trans, NULL))
{
- int i;
- for (i = 0; i < num_trans; i++)
- if (0 < trans_alpha[i] && trans_alpha[i] < 255)
- break;
- if (! (i < num_trans))
+ if (!trans_alpha)
transparent_p = true;
+ else
+ {
+ int i;
+ for (i = 0; i < num_trans; i++)
+ if (0 < trans_alpha[i] && trans_alpha[i] < 255)
+ break;
+ if (! (i < num_trans))
+ transparent_p = true;
+ }
}
# endif
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
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bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
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Subject: Re: bug#37153: 26.1; some png images scrambled
To: YAMAMOTO Mitsuharu <mituharu@HIDDEN>,
Roland Winkler <winkler@HIDDEN>
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From: Paul Eggert <eggert@HIDDEN>
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--------------2DC646F745174DCE19A5F135
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YAMAMOTO Mitsuharu wrote:
> It seems to be necessary to look into the tRNS chunk data for paletted
> images. Again, W32 would need some more work.
Thanks, I confirmed that this fixes the misdisplay for me as well. I attempted
to port it to w32 (as well as to unusual libpng builds that do not define
PNG_tRNS_SUPPORTED) and installed the attached into master.
With this patch on Ubuntu 18.04.3 I always see the first image shown in your
tRNS.pg screenshot <https://bugs.gnu.org/37153#56>. So it may be that more work
needs to be done to support other faces. Still, this patch is an improvement so
it's worth going in.
--------------2DC646F745174DCE19A5F135
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name="0001-Fix-misdisplay-of-PNG-paletted-images.patch"
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From 64aa756cfa5943c8b3494ac1fbb4db712c50ae64 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@HIDDEN>
Date: Sun, 25 Aug 2019 10:01:46 -0700
Subject: [PATCH] Fix misdisplay of PNG paletted images
Problem reported by Roland Winkler (Bug#37153).
Derived from a patch suggested by YAMAMOTO Mitsuharu (Bug#37153#62).
* src/image.c (png_get_valid) [WINDOWSNT]:
Do not dynamically link this function.
(png_get_tRNS) [WINDOWSNT && PNG_tRNS_SUPPORTED]:
Dynamically link this function instead.
(png_load_body): Do not assume that every paletted image supplies
only transparency data. Fix typo in use of transparent_p.
---
src/image.c | 34 +++++++++++++++++++++++++---------
1 file changed, 25 insertions(+), 9 deletions(-)
diff --git a/src/image.c b/src/image.c
index 81d8cb4e2b..18495612e9 100644
--- a/src/image.c
+++ b/src/image.c
@@ -6234,7 +6234,10 @@ DEF_DLL_FN (void, png_read_info, (png_structp, png_infop));
DEF_DLL_FN (png_uint_32, png_get_IHDR,
(png_structp, png_infop, png_uint_32 *, png_uint_32 *,
int *, int *, int *, int *, int *));
-DEF_DLL_FN (png_uint_32, png_get_valid, (png_structp, png_infop, png_uint_32));
+# ifdef PNG_tRNS_SUPPORTED
+DEF_DLL_FN (png_uint_32, png_get_tRNS, (png_structp, png_infop, png_bytep *,
+ int *, png_color_16p *));
+# endif
DEF_DLL_FN (void, png_set_strip_16, (png_structp));
DEF_DLL_FN (void, png_set_expand, (png_structp));
DEF_DLL_FN (void, png_set_gray_to_rgb, (png_structp));
@@ -6273,7 +6276,9 @@ init_png_functions (void)
LOAD_DLL_FN (library, png_set_sig_bytes);
LOAD_DLL_FN (library, png_read_info);
LOAD_DLL_FN (library, png_get_IHDR);
- LOAD_DLL_FN (library, png_get_valid);
+# ifdef PNG_tRNS_SUPPORTED
+ LOAD_DLL_FN (library, png_get_tRNS);
+# endif
LOAD_DLL_FN (library, png_set_strip_16);
LOAD_DLL_FN (library, png_set_expand);
LOAD_DLL_FN (library, png_set_gray_to_rgb);
@@ -6304,7 +6309,7 @@ init_png_functions (void)
# undef png_get_IHDR
# undef png_get_io_ptr
# undef png_get_rowbytes
-# undef png_get_valid
+# undef png_get_tRNS
# undef png_longjmp
# undef png_read_end
# undef png_read_image
@@ -6329,7 +6334,7 @@ init_png_functions (void)
# define png_get_IHDR fn_png_get_IHDR
# define png_get_io_ptr fn_png_get_io_ptr
# define png_get_rowbytes fn_png_get_rowbytes
-# define png_get_valid fn_png_get_valid
+# define png_get_tRNS fn_png_get_tRNS
# define png_longjmp fn_png_longjmp
# define png_read_end fn_png_read_end
# define png_read_image fn_png_read_image
@@ -6589,10 +6594,21 @@ png_load_body (struct frame *f, struct image *img, struct png_load_context *c)
/* If image contains simply transparency data, we prefer to
construct a clipping mask. */
- if (png_get_valid (png_ptr, info_ptr, PNG_INFO_tRNS))
- transparent_p = 1;
- else
- transparent_p = 0;
+ transparent_p = false;
+# ifdef PNG_tRNS_SUPPORTED
+ png_bytep trans_alpha;
+ int num_trans;
+ if (png_get_tRNS (png_ptr, info_ptr, &trans_alpha, &num_trans, NULL)
+ && trans_alpha)
+ {
+ int i;
+ for (i = 0; i < num_trans; i++)
+ if (0 < trans_alpha[i] && trans_alpha[i] < 255)
+ break;
+ if (! (i < num_trans))
+ transparent_p = true;
+ }
+# endif
/* This function is easier to write if we only have to handle
one data format: RGB or RGBA with 8 bits per channel. Let's
@@ -6680,7 +6696,7 @@ png_load_body (struct frame *f, struct image *img, struct png_load_context *c)
/* Create an image and pixmap serving as mask if the PNG image
contains an alpha channel. */
if (channels == 4
- && !transparent_p
+ && transparent_p
&& !image_create_x_image_and_pixmap (f, img, width, height, 1,
&mask_img, 1))
{
--
2.17.1
--------------2DC646F745174DCE19A5F135--
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 25 Aug 2019 12:19:19 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Aug 25 08:19:19 2019 Received: from localhost ([127.0.0.1]:43710 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i1rUN-0005Mc-Hr for submit <at> debbugs.gnu.org; Sun, 25 Aug 2019 08:19:19 -0400 Received: from eggs.gnu.org ([209.51.188.92]:52491) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <winkler@HIDDEN>) id 1i1rUM-0005MR-Dq for 37153 <at> debbugs.gnu.org; Sun, 25 Aug 2019 08:19:18 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:48608) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <winkler@HIDDEN>) id 1i1rUF-000675-TB; Sun, 25 Aug 2019 08:19:11 -0400 Received: from [2602:30a:2e52:d720:65b7:1416:12e7:8bfb] (port=53648 helo=regnitz) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from <winkler@HIDDEN>) id 1i1rUF-000281-Ga; Sun, 25 Aug 2019 08:19:11 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <31933.54603.787637.23906@HIDDEN> Date: Sun, 25 Aug 2019 07:19:09 -0500 From: "Roland Winkler" <winkler@HIDDEN> To: YAMAMOTO Mitsuharu <mituharu@HIDDEN> Subject: Re: bug#37153: 26.1; some png images scrambled In-Reply-To: <wlwof1ive4.wl-mituharu@HIDDEN> References: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> <44134.15891.158963.23904@HIDDEN> <9c4c68ebe20cbcc44763be8e72bd25eb.squirrel@HIDDEN> <5136.20784.40920.23906@HIDDEN> <wlwof1ive4.wl-mituharu@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org, Paul Eggert <eggert@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) On Sun Aug 25 2019 YAMAMOTO Mitsuharu wrote: > It seems to be necessary to look into the tRNS chunk data for paletted > images. Again, W32 would need some more work. Thank you, I can confirm that your patch works for me (under GNU Linux), including the transparent images from the png test suite.
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
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From: Eli Zaretskii <eliz@HIDDEN>
To: YAMAMOTO Mitsuharu <mituharu@HIDDEN>
In-reply-to: <wlk1b1nagj.wl-mituharu@HIDDEN> (message from
YAMAMOTO Mitsuharu on Sun, 25 Aug 2019 13:19:24 +0900)
Subject: Re: bug#37153: 26.1; some png images scrambled
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> Date: Sun, 25 Aug 2019 13:19:24 +0900
> From: YAMAMOTO Mitsuharu <mituharu@HIDDEN>
> Cc: winkler@HIDDEN,
> 37153 <at> debbugs.gnu.org,
> eggert@HIDDEN
>
> > > --- a/src/image.c
> > > +++ b/src/image.c
> > > @@ -6680,7 +6680,7 @@ png_load_body (struct frame *f, struct image *img,
> > > struct png_load_context *c)
> > > /* Create an image and pixmap serving as mask if the PNG image
> > > contains an alpha channel. */
> > > if (channels == 4
> > > - && !transparent_p
> > > + && transparent_p
> > > && !image_create_x_image_and_pixmap (f, img, width, height, 1,
> > > &mask_img, 1))
> > > {
> > >
> >
> > That didn't change anything in how I see the image in question, FWIW.
>
> Attached is a screenshot on X11. Probably W32 needs some more work.
I always see the 3rd image, no matter what face is specified, FWIW.
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
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From: YAMAMOTO Mitsuharu <mituharu@HIDDEN>
To: "Roland Winkler" <winkler@HIDDEN>
Subject: Re: bug#37153: 26.1; some png images scrambled
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On Sun, 25 Aug 2019 13:52:32 +0900,
Roland Winkler wrote:
>
> On Sat Aug 24 2019 mituharu@HIDDEN wrote:
> > I suspect there is a longstanding typo (or thinko) in PNG
> > transparency handling code.
>
> It may be helpful to check the "official" test-suite for PNG
>
> http://www.schaik.com/pngsuite2011/pngsuite.html
>
> which contains also png files with transparency
>
> http://www.schaik.com/pngsuite2011/pngsuite_trn_png.html
>
> Somehow emacs ignores the transparency for image type png, see for
> example the file tm3n3p02.png with multiple levels of transparency.
>
> Transparency is honored for these images when emacs uses imagemagick.
It seems to be necessary to look into the tRNS chunk data for paletted
images. Again, W32 would need some more work.
YAMAMOTO Mitsuharu
mituharu@HIDDEN
diff --git a/src/image.c b/src/image.c
index 81d8cb4e2b2..7f1561d7a68 100644
--- a/src/image.c
+++ b/src/image.c
@@ -6589,10 +6589,28 @@ png_load_body (struct frame *f, struct image *img, struct png_load_context *c)
/* If image contains simply transparency data, we prefer to
construct a clipping mask. */
+ transparent_p = false;
if (png_get_valid (png_ptr, info_ptr, PNG_INFO_tRNS))
- transparent_p = 1;
- else
- transparent_p = 0;
+ {
+ if (color_type != PNG_COLOR_TYPE_PALETTE)
+ transparent_p = true;
+ else
+ {
+ /* Paletted images can specify transparency levels. */
+ png_bytep trans;
+ int i, num_trans;
+
+ if (png_get_tRNS (png_ptr, info_ptr, &trans, &num_trans, NULL)
+ == PNG_INFO_tRNS)
+ {
+ for (i = 0; i < num_trans; i++)
+ if (!(trans[i] == 0 || trans[i] == 255))
+ break;
+ if (i == num_trans)
+ transparent_p = true;
+ }
+ }
+ }
/* This function is easier to write if we only have to handle
one data format: RGB or RGBA with 8 bits per channel. Let's
@@ -6680,7 +6698,7 @@ png_load_body (struct frame *f, struct image *img, struct png_load_context *c)
/* Create an image and pixmap serving as mask if the PNG image
contains an alpha channel. */
if (channels == 4
- && !transparent_p
+ && transparent_p
&& !image_create_x_image_and_pixmap (f, img, width, height, 1,
&mask_img, 1))
{
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 25 Aug 2019 04:52:44 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Aug 25 00:52:44 2019 Received: from localhost ([127.0.0.1]:43436 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i1kWB-0004fv-NA for submit <at> debbugs.gnu.org; Sun, 25 Aug 2019 00:52:43 -0400 Received: from eggs.gnu.org ([209.51.188.92]:39923) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <winkler@HIDDEN>) id 1i1kW9-0004fh-Hx for 37153 <at> debbugs.gnu.org; Sun, 25 Aug 2019 00:52:42 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:44361) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <winkler@HIDDEN>) id 1i1kW1-0007Jn-BF; Sun, 25 Aug 2019 00:52:35 -0400 Received: from [2602:30a:2e52:d720:65b7:1416:12e7:8bfb] (port=53216 helo=regnitz) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from <winkler@HIDDEN>) id 1i1kW0-0004wy-W5; Sun, 25 Aug 2019 00:52:33 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <5136.20784.40920.23906@HIDDEN> Date: Sat, 24 Aug 2019 23:52:32 -0500 From: "Roland Winkler" <winkler@HIDDEN> To: mituharu@HIDDEN Subject: Re: bug#37153: 26.1; some png images scrambled In-Reply-To: <9c4c68ebe20cbcc44763be8e72bd25eb.squirrel@HIDDEN> References: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> <44134.15891.158963.23904@HIDDEN> <9c4c68ebe20cbcc44763be8e72bd25eb.squirrel@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org, Paul Eggert <eggert@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) On Sat Aug 24 2019 mituharu@HIDDEN wrote: > I suspect there is a longstanding typo (or thinko) in PNG > transparency handling code. It may be helpful to check the "official" test-suite for PNG http://www.schaik.com/pngsuite2011/pngsuite.html which contains also png files with transparency http://www.schaik.com/pngsuite2011/pngsuite_trn_png.html Somehow emacs ignores the transparency for image type png, see for example the file tm3n3p02.png with multiple levels of transparency. Transparency is honored for these images when emacs uses imagemagick.
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
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From: YAMAMOTO Mitsuharu <mituharu@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#37153: 26.1; some png images scrambled
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--Multipart_Sun_Aug_25_13:19:24_2019-1
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On Sat, 24 Aug 2019 19:17:31 +0900,
Eli Zaretskii wrote:
>
> > Date: Sat, 24 Aug 2019 18:01:46 +0900
> > From: mituharu@HIDDEN
> > Cc: 37153 <at> debbugs.gnu.org, Paul Eggert <eggert@HIDDEN>
> >
> > I suspect there is a longstanding typo (or thinko) in PNG
> > transparency handling code.
> >
> > YAMAMOTO Mitsuharu
> > mituharu@HIDDEN
> >
> > diff --git a/src/image.c b/src/image.c
> > index 81d8cb4e2b2..819e058f7e1 100644
> > --- a/src/image.c
> > +++ b/src/image.c
> > @@ -6680,7 +6680,7 @@ png_load_body (struct frame *f, struct image *img,
> > struct png_load_context *c)
> > /* Create an image and pixmap serving as mask if the PNG image
> > contains an alpha channel. */
> > if (channels == 4
> > - && !transparent_p
> > + && transparent_p
> > && !image_create_x_image_and_pixmap (f, img, width, height, 1,
> > &mask_img, 1))
> > {
> >
>
> That didn't change anything in how I see the image in question, FWIW.
Attached is a screenshot on X11. Probably W32 needs some more work.
YAMAMOTO Mitsuharu
mituharu@HIDDEN
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--Multipart_Sun_Aug_25_13:19:24_2019-1--
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
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Date: Sat, 24 Aug 2019 13:17:31 +0300
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From: Eli Zaretskii <eliz@HIDDEN>
To: mituharu@HIDDEN
In-reply-to: <9c4c68ebe20cbcc44763be8e72bd25eb.squirrel@HIDDEN>
(mituharu@HIDDEN)
Subject: Re: bug#37153: 26.1; some png images scrambled
References: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN>
<44134.15891.158963.23904@HIDDEN>
<9c4c68ebe20cbcc44763be8e72bd25eb.squirrel@HIDDEN>
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> Date: Sat, 24 Aug 2019 18:01:46 +0900
> From: mituharu@HIDDEN
> Cc: 37153 <at> debbugs.gnu.org, Paul Eggert <eggert@HIDDEN>
>
> I suspect there is a longstanding typo (or thinko) in PNG
> transparency handling code.
>
> YAMAMOTO Mitsuharu
> mituharu@HIDDEN
>
> diff --git a/src/image.c b/src/image.c
> index 81d8cb4e2b2..819e058f7e1 100644
> --- a/src/image.c
> +++ b/src/image.c
> @@ -6680,7 +6680,7 @@ png_load_body (struct frame *f, struct image *img,
> struct png_load_context *c)
> /* Create an image and pixmap serving as mask if the PNG image
> contains an alpha channel. */
> if (channels == 4
> - && !transparent_p
> + && transparent_p
> && !image_create_x_image_and_pixmap (f, img, width, height, 1,
> &mask_img, 1))
> {
>
That didn't change anything in how I see the image in question, FWIW.
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
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<44134.15891.158963.23904@HIDDEN>
Date: Sat, 24 Aug 2019 18:01:46 +0900
Subject: Re: bug#37153: 26.1; some png images scrambled
From: mituharu@HIDDEN
To: "Roland Winkler" <winkler@HIDDEN>
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> On Fri Aug 23 2019 Paul Eggert wrote:
>> Do you see the same problem when using Emacs master? If not, then
>> perhaps we can just marked the bug as fixed in the next release.
>
> The problem with my test png image is that it has transparent parts
> that need to be displayed with a light color so that one can
> recognize the nontransparent dark parts. But the image uses fully
> transparent black as background. The behavior in such a case is not
> strictly defined by the png standard, see
>
> https://sourceforge.net/p/png-mng/mailman/message/36747189/
>
> Emacs displays such fully transparent background with its original
> color specified by the image. But I believe it would make more
> sense if emacs used instead a background color that the user can
> choose (the background color of the frame), similar to, for example,
> eog.
I suspect there is a longstanding typo (or thinko) in PNG
transparency handling code.
YAMAMOTO Mitsuharu
mituharu@HIDDEN
diff --git a/src/image.c b/src/image.c
index 81d8cb4e2b2..819e058f7e1 100644
--- a/src/image.c
+++ b/src/image.c
@@ -6680,7 +6680,7 @@ png_load_body (struct frame *f, struct image *img,
struct png_load_context *c)
/* Create an image and pixmap serving as mask if the PNG image
contains an alpha channel. */
if (channels == 4
- && !transparent_p
+ && transparent_p
&& !image_create_x_image_and_pixmap (f, img, width, height, 1,
&mask_img, 1))
{
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 24 Aug 2019 06:26:12 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Aug 24 02:26:12 2019 Received: from localhost ([127.0.0.1]:41510 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i1PV6-0002oK-H8 for submit <at> debbugs.gnu.org; Sat, 24 Aug 2019 02:26:12 -0400 Received: from eggs.gnu.org ([209.51.188.92]:49546) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1i1PV4-0002o8-GR for 37153 <at> debbugs.gnu.org; Sat, 24 Aug 2019 02:26:10 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:58620) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <eliz@HIDDEN>) id 1i1PUz-0002Ui-DB; Sat, 24 Aug 2019 02:26:05 -0400 Received: from [176.228.60.248] (port=1872 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1i1PUu-0006gw-Py; Sat, 24 Aug 2019 02:26:02 -0400 Date: Sat, 24 Aug 2019 09:26:13 +0300 Message-Id: <8336hrjcze.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Paul Eggert <eggert@HIDDEN> In-reply-to: <2276b80c-df26-68af-fb71-f64966498b8b@HIDDEN> (message from Paul Eggert on Fri, 23 Aug 2019 20:39:17 -0700) Subject: Re: bug#37153: 26.1; some png images scrambled References: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> <44134.15891.158963.23904@HIDDEN> <2276b80c-df26-68af-fb71-f64966498b8b@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org, winkler@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Paul Eggert <eggert@HIDDEN> > Date: Fri, 23 Aug 2019 20:39:17 -0700 > Cc: 37153 <at> debbugs.gnu.org > > Roland Winkler wrote: > > I believe it would make more > > sense if emacs used instead a background color that the user can > > choose (the background color of the frame), similar to, for example, > > eog. > > > > Should I submit a separate feature request for this? > > Can you do this with faces? No, not AFAIK.
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 24 Aug 2019 06:22:31 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Aug 24 02:22:31 2019 Received: from localhost ([127.0.0.1]:41506 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i1PRW-0002ir-Vk for submit <at> debbugs.gnu.org; Sat, 24 Aug 2019 02:22:31 -0400 Received: from eggs.gnu.org ([209.51.188.92]:49053) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1i1PRU-0002ib-3V for 37153 <at> debbugs.gnu.org; Sat, 24 Aug 2019 02:22:29 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:58606) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <eliz@HIDDEN>) id 1i1PRO-0000Cq-U2; Sat, 24 Aug 2019 02:22:22 -0400 Received: from [176.228.60.248] (port=1648 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1i1PRN-0006Ti-UG; Sat, 24 Aug 2019 02:22:22 -0400 Date: Sat, 24 Aug 2019 09:22:34 +0300 Message-Id: <834l27jd5h.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: "Roland Winkler" <winkler@HIDDEN> In-reply-to: <44134.15891.158963.23904@HIDDEN> (winkler@HIDDEN) Subject: Re: bug#37153: 26.1; some png images scrambled References: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> <44134.15891.158963.23904@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org, eggert@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Date: Fri, 23 Aug 2019 22:17:58 -0500 > From: "Roland Winkler" <winkler@HIDDEN> > Cc: 37153 <at> debbugs.gnu.org > > The problem with my test png image is that it has transparent parts > that need to be displayed with a light color so that one can > recognize the nontransparent dark parts. But the image uses fully > transparent black as background. The behavior in such a case is not > strictly defined by the png standard, see > > https://sourceforge.net/p/png-mng/mailman/message/36747189/ > > Emacs displays such fully transparent background with its original > color specified by the image. But I believe it would make more > sense if emacs used instead a background color that the user can > choose (the background color of the frame), similar to, for example, > eog. Please take a look at image.c in the PNG area: it includes quite a few references to "transparent" and what we should be/are doing with that. > Should I submit a separate feature request for this? I don't think I understand the feature you want to request. Please don't forget that the same PNG image can be displayed on places that have different background colors. I also don't think I see the use cases for such images in Emacs.
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 24 Aug 2019 05:51:13 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Aug 24 01:51:13 2019 Received: from localhost ([127.0.0.1]:41496 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i1OxE-0001yj-Uo for submit <at> debbugs.gnu.org; Sat, 24 Aug 2019 01:51:13 -0400 Received: from eggs.gnu.org ([209.51.188.92]:46072) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1i1OxA-0001yS-7e for 37153 <at> debbugs.gnu.org; Sat, 24 Aug 2019 01:51:11 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:58344) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <eliz@HIDDEN>) id 1i1Ox5-0000Bs-1g; Sat, 24 Aug 2019 01:51:03 -0400 Received: from [176.228.60.248] (port=3709 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1i1Ox3-00040O-UY; Sat, 24 Aug 2019 01:51:02 -0400 Date: Sat, 24 Aug 2019 08:51:13 +0300 Message-Id: <838srjjelq.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Paul Eggert <eggert@HIDDEN> In-reply-to: <2d8c8224-5b99-4c86-07fc-bc2a968bb625@HIDDEN> (message from Paul Eggert on Fri, 23 Aug 2019 13:33:11 -0700) Subject: Re: bug#37153: 26.1; some png images scrambled References: <28732.94605.161707.23903@HIDDEN> <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> <83blwfk5fh.fsf@HIDDEN> <2d8c8224-5b99-4c86-07fc-bc2a968bb625@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org, winkler@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Cc: winkler@HIDDEN, 37153 <at> debbugs.gnu.org > From: Paul Eggert <eggert@HIDDEN> > Date: Fri, 23 Aug 2019 13:33:11 -0700 > > Eli Zaretskii wrote: > > Please show the screenshot of the image as you saw it. > > My screenshot software outputs .png so if there's a problem with the original > .png image there will quite possibly be a problem with the screenshot too. But > anyway, attached is a screenshot of how Gimp displays the test image, magnified > 16x. The checkerboard is how Gimp displays absent parts of the image, and the > gray frame around the edge is also part of Gimp and not part of the image. This is not how this should be displayed, AFAIU. Try opening the same image in Firefox, and you will see a much more reasonable display. I presume that's what the OP wanted.
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 24 Aug 2019 04:19:25 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Aug 24 00:19:25 2019 Received: from localhost ([127.0.0.1]:41479 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i1NWP-00085H-3O for submit <at> debbugs.gnu.org; Sat, 24 Aug 2019 00:19:25 -0400 Received: from eggs.gnu.org ([209.51.188.92]:39081) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <winkler@HIDDEN>) id 1i1NWM-000853-RG for 37153 <at> debbugs.gnu.org; Sat, 24 Aug 2019 00:19:23 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:57230) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <winkler@HIDDEN>) id 1i1NWH-0005w2-FM; Sat, 24 Aug 2019 00:19:17 -0400 Received: from [2602:30a:2e52:d720:65b7:1416:12e7:8bfb] (port=51034 helo=regnitz) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from <winkler@HIDDEN>) id 1i1NWG-00058E-Vv; Sat, 24 Aug 2019 00:19:17 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <47812.38793.102260.23904@HIDDEN> Date: Fri, 23 Aug 2019 23:19:16 -0500 From: "Roland Winkler" <winkler@HIDDEN> To: Paul Eggert <eggert@HIDDEN> Subject: Re: 26.1; some png images scrambled In-Reply-To: <2276b80c-df26-68af-fb71-f64966498b8b@HIDDEN> References: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> <44134.15891.158963.23904@HIDDEN> <2276b80c-df26-68af-fb71-f64966498b8b@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) On Fri Aug 23 2019 Paul Eggert wrote: > Can you do this with faces? They let you specify background > colors. (I don't use this stuff so you'll have to be the expert.) I am not an expert either. When I created a buffer with my png image plus ordinary text, I could change the background color of the text via add-face-text-property. But this did not affect the background color of the image. So I believe the answer is no. > If there's no way to do it in Emacs now, I suggest retitling this > bug report and changing it to a feature request, which you can do > as described here: > > https://debbugs.gnu.org/server-control.html Thanks, I'll wait a day or two. If nobody tells me that I have overlooked something significant, I'll turn this bug report into a feature request.
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 24 Aug 2019 03:39:27 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Aug 23 23:39:27 2019 Received: from localhost ([127.0.0.1]:41472 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i1Mti-00078x-Qs for submit <at> debbugs.gnu.org; Fri, 23 Aug 2019 23:39:27 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:39642) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eggert@HIDDEN>) id 1i1Mtg-00078h-MJ for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 23:39:25 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 1F911160057; Fri, 23 Aug 2019 20:39:19 -0700 (PDT) Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id ufkiTbtFpGke; Fri, 23 Aug 2019 20:39:18 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 512A81600A9; Fri, 23 Aug 2019 20:39:18 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id fhb5qbZB3iQH; Fri, 23 Aug 2019 20:39:18 -0700 (PDT) Received: from [192.168.1.9] (cpe-23-242-74-103.socal.res.rr.com [23.242.74.103]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 2364C160057; Fri, 23 Aug 2019 20:39:18 -0700 (PDT) Subject: Re: 26.1; some png images scrambled To: Roland Winkler <winkler@HIDDEN> References: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> <44134.15891.158963.23904@HIDDEN> From: Paul Eggert <eggert@HIDDEN> Organization: UCLA Computer Science Department Message-ID: <2276b80c-df26-68af-fb71-f64966498b8b@HIDDEN> Date: Fri, 23 Aug 2019 20:39:17 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <44134.15891.158963.23904@HIDDEN> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) Roland Winkler wrote: > I believe it would make more > sense if emacs used instead a background color that the user can > choose (the background color of the frame), similar to, for example, > eog. > > Should I submit a separate feature request for this? Can you do this with faces? They let you specify background colors. (I don't use this stuff so you'll have to be the expert.) If there's no way to do it in Emacs now, I suggest retitling this bug report and changing it to a feature request, which you can do as described here: https://debbugs.gnu.org/server-control.html
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 24 Aug 2019 03:18:07 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Aug 23 23:18:07 2019 Received: from localhost ([127.0.0.1]:41467 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i1MZ4-0006c5-UF for submit <at> debbugs.gnu.org; Fri, 23 Aug 2019 23:18:07 -0400 Received: from eggs.gnu.org ([209.51.188.92]:33855) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <winkler@HIDDEN>) id 1i1MZ2-0006bZ-He for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 23:18:05 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:56285) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <winkler@HIDDEN>) id 1i1MYx-0005lq-EB; Fri, 23 Aug 2019 23:17:59 -0400 Received: from [2602:30a:2e52:d720:65b7:1416:12e7:8bfb] (port=50884 helo=regnitz) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from <winkler@HIDDEN>) id 1i1MYx-0007ZE-2u; Fri, 23 Aug 2019 23:17:59 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <44134.15891.158963.23904@HIDDEN> Date: Fri, 23 Aug 2019 22:17:58 -0500 From: "Roland Winkler" <winkler@HIDDEN> To: Paul Eggert <eggert@HIDDEN> Subject: Re: 26.1; some png images scrambled In-Reply-To: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> References: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) On Fri Aug 23 2019 Paul Eggert wrote: > Do you see the same problem when using Emacs master? If not, then > perhaps we can just marked the bug as fixed in the next release. The problem with my test png image is that it has transparent parts that need to be displayed with a light color so that one can recognize the nontransparent dark parts. But the image uses fully transparent black as background. The behavior in such a case is not strictly defined by the png standard, see https://sourceforge.net/p/png-mng/mailman/message/36747189/ Emacs displays such fully transparent background with its original color specified by the image. But I believe it would make more sense if emacs used instead a background color that the user can choose (the background color of the frame), similar to, for example, eog. Should I submit a separate feature request for this?
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 23 Aug 2019 20:33:20 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Aug 23 16:33:20 2019 Received: from localhost ([127.0.0.1]:41271 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i1GFL-0000LD-V3 for submit <at> debbugs.gnu.org; Fri, 23 Aug 2019 16:33:20 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:47990) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eggert@HIDDEN>) id 1i1GFK-0000Kz-6N for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 16:33:19 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 804B8160073; Fri, 23 Aug 2019 13:33:12 -0700 (PDT) Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id ZROycafCrRfb; Fri, 23 Aug 2019 13:33:11 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id D2A5216008D; Fri, 23 Aug 2019 13:33:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id ip_Z8Ffl-x_s; Fri, 23 Aug 2019 13:33:11 -0700 (PDT) Received: from [192.168.1.9] (cpe-23-242-74-103.socal.res.rr.com [23.242.74.103]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id A497E160073; Fri, 23 Aug 2019 13:33:11 -0700 (PDT) Subject: Re: bug#37153: 26.1; some png images scrambled To: Eli Zaretskii <eliz@HIDDEN> References: <28732.94605.161707.23903@HIDDEN> <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> <83blwfk5fh.fsf@HIDDEN> From: Paul Eggert <eggert@HIDDEN> Organization: UCLA Computer Science Department Message-ID: <2d8c8224-5b99-4c86-07fc-bc2a968bb625@HIDDEN> Date: Fri, 23 Aug 2019 13:33:11 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <83blwfk5fh.fsf@HIDDEN> Content-Type: multipart/mixed; boundary="------------632197BDD2FAB74B2988D217" Content-Language: en-US X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org, winkler@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) This is a multi-part message in MIME format. --------------632197BDD2FAB74B2988D217 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Eli Zaretskii wrote: > Please show the screenshot of the image as you saw it. My screenshot software outputs .png so if there's a problem with the original .png image there will quite possibly be a problem with the screenshot too. But anyway, attached is a screenshot of how Gimp displays the test image, magnified 16x. The checkerboard is how Gimp displays absent parts of the image, and the gray frame around the edge is also part of Gimp and not part of the image. --------------632197BDD2FAB74B2988D217 Content-Type: image/png; name="Screenshot from 2019-08-23 13-29-06.png" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="Screenshot from 2019-08-23 13-29-06.png" iVBORw0KGgoAAAANSUhEUgAAASIAAAEhCAYAAADbKq0YAAAABHNCSVQICAgIfAhkiAAAABl0 RVh0U29mdHdhcmUAZ25vbWUtc2NyZWVuc2hvdO8Dvz4AAAw7SURBVHic7d3Bi1V3lgfwU+pE Q1DzD8xC0BKKUhhcBMzGjQOTHlB6YWZnoJsqAt3ETe1m6a43E2hI6m2SMA3d7aqF0dAIIRsF FyIDZeOYWgg1mwEHSq3gWGPpLKa1+9ld7974q1+d96v3+WySer936t13Sw+/e9/xW1OPHq6+ CIBEu7IPAEAjAtJpREA6jQhIpxEB6fb0edL+A+8OfT01Nbz+4rXP3axbt279pUcPV6PLVJ+P 7/cfeDcGg8VN12/dujWy/sSJEyPX1atXvzPrFxcH8fhRdyNyaQak04iAdL0a0evXfABbyY4I qKbvJkYjAtJpREC6XnNEL15EzM9v/hFdyx8vqlevvm59H3ZEQDWvDztuRiMC0mlEQDpzREA6 OyKgGnNEQDM0IiBd7zmiwWDzWYHsOQX16tWPb30fdkRANeaIgGZoREA6c0RAOjsioBpzREAz NCIgnTwi9erVV63vw44IqMYcEdAMjQhIZ44ISGdHBFRjjghohkYEpJNHpF69+qr1fdgRAdWY IwKaoREB6cwRAensiIBqzBEBzdCIgHTyiNSrV1+1vg87IqAac0RAMzQiIJ05IiCdHRFQjTki oBkaEZBOHpF69eqr1vdhRwRUY44IaIZGBKQzRwSksyMCqjFHBDRDIwLSySNSr1591fo+7IiA aswRAc3QiIB05oiAdHZEQDXmiIBmaERAuibyiM7GYOR6dMShzHeUdzr5L6PXl56MXP7u+mLZ 6w9Gv4Gu87e4eLbo5een5ke/fkd9+en/buR6x+mP8x1jLtlzNju9vg87IqAac0RAMzQiIJ05 IiCdHRFQjTkioBkaEZCuiTyizkGVHW478mB2snGfs9np9X3YEQHVmCMCmqERAenMEQHp7IiA aswRAc3QiIB0TeQRzS1eHbneZS5+V1Qfg0tF5VeWPymqLz1/HXFG3XlGV+dGf4MOg4szRfVf fXK4qP6bEX92I/LnbHZ6fR92REA15oiAZmhEQDpzREA6OyKgGnNEQDM0IiBdG3lEEy57TqT1 QKjs8zfp9X3YEQHVmCMCmqERAenMEQHp7IiAaswRAc3QiIB0TeQRxfKT0etdZhaKys/OHSmq v3hluaj+fPKcyPKTpZHrXU6eKzv/33QEKmXPyaiXRwSMMXNEQDM0IiCdOSIgnR0RUI05IqAZ GhGQrpE8osI5osZlz4lE4RxRqez3r14eEdAwc0RAMzQiIJ05IiCdHRFQjTkioBkaEZCuiTyi 0jycmP6kqPwfpueK6j+4eKWo/qvri0X1UZjn87dlrx7nFg4X1b/99njPyaiXRwSMMXNEQDM0 IiCdOSIgnR0RUI05IqAZGhGQro08ouQ8nNYVn/9b8ojUv3l9H3ZEQDXmiIBmaERAOnNEQDo7 IqAac0RAMzQiIF0TeUSleTgzPyr8BofPFpXPfXCxqP7Kclme0uJi2fHPT80W1Z8tjFN6e8zn ZNTLIwLGWN85ol47IqCu58+fx+PHj4ceO3XqVEREHDp0KCIiLl++PLR+5syZV7UREd9+++0Y 1v849uz5m4iI+Oyzz4bWP/7441f/rxHBGDh27Fjcu3cvVldXXz22vr4eERHPnj2LiIi9e/cO 1bx8/OXz9uwZ/us8HvXfR8T/b4v2H9j/2rv+03apVyOamopYLLzOB0abnZ2N27dvv/r6zp07 ERGxb9++iIg4evTo0PNXVlaGnvfOO+8MrY9H/e9fNax/+vDDofWXj0e4RwRUZI4IaIZ7RDAG bt68GRsbG3Hw4MHsQ0nRRh5Rch4OucZ9TmYr6u/evRvr6+tx/PjxlNevWd+HSzOgGnlEQDPc I4IxcPr06di9e3fcv38/+1BSyCMC0rk0A6oxRwQ0wz0iGAPXrl3b9OP7SbAteUTFeTjvnyuq XzhcVB4RR4qqZ07eKKq/dGW5qP6TH90rql86OVNUv1BUPf5zMltRv7a2FhsbG3/1e7Vw/KVc mgHVyCOCHyA7D2hpaSkePHhQ9iYaphFB5OcBTU9Px9OnT7fkvbRIHhH8UXYe0K5dk3unZHLf OVCdOSKgGe4RQcgDyrYteURQQh5Q2/V9uDQDqpFHBDTDPSIIeUDZ5BEB6VyaAdWYIwKa4R4R hDygbNuSRxTLT37QQb1uaXa6qP6bwWDkeu05i4VzJ0eud7lw6UpR/fL0H4rq41xZolD2+c/O Azobo99/dPz1mY+rRfWLXb82UB4RsJPJI2KilOYJTXoeUDaNiB2hNE9o0vOAsskjYscozROa 5DygbM48UI05IqAZ7hGxI8gTats25RGVzRGVyp5TiSdLo9d3uEnPE+qa86kt/f334NIMqEYe EdAM94jYEeQJtU0eEZDOpRlQjTkioBnuEbEjyBNq27bkES2XztHMfFVUfuLt3N/7NLdwbuR6 l5MXLhXV/+J3ReUxe/ZwUf12nP+aeUKLZ0cuR9eg0Pytua5vMFJZmlX+7z3rw6UZUI08Ipoi T2iyaUSMBXlCk00eEWNDntDk8pMDqjFHBDTDPSLGgjyhybY9eUTJeTz5eSy5eUzZms8Tyg4U KpR//rq5NAOqkUcENMM9IsaCPKHJJo8ISOfSDKjGHBHQDPeIGAvyhCZb7zmiiIU3fpFP359/ 49qIiNl/Hv88nJHm3vzcRUScO3mhqP7CoCwP52rhvzNcWUnOE+oOFBpp/v2yObCFsjitOH/+ XtnrXy/8AQ4GI5flEQFjTR4R2+o/b92K5Rs3hh778Oc/j4iIPfKE6KARsSX+7sSJ+O+lpfif P3ts44//lSdEl955RH23WEyuvz9/Pv7rz75+ub95mRskT4jN+MkD1ZgjApqhEbEl/u3LL+O3 v/xl9mHQqB8wR9SuFvJYdjLnv23yiICmySMCmmGOiC3xjx99FLsihj6+h77kEQHpXJoB1Zgj ApqhEbElzBFRovcc0fKn59/4RS7c6H7OSB+U5RldfZGbx9JR3lm/cO7k6G/Q4ULMFNUf6fGc /4iItzZ5bu05oa76r+fLAoFmvrpeVH84Pi2qz1acx9WDHRFQjTkioBnmiNgS5z76KKYi4vvs A6FJ5oiAdC7NgGrMEQHN0IjYEpe+/DK+MEfEG/oBc0S1D2V8pefpPFkavT7m0s/frbbPXzZ5 REDTzBEBzTBHxJYwR0QJc0RAOpdmQDXmiIBmaERsCXNElJh69HC18wO2/QfejcFg80yf7DkR 9fn1a2trsbGxEQcPHtzy11+YKZsDOlIciJVtrqi6NI9rpSCPazAYxKOHq52vYUcEVNN3jsjH 90RExPPnz+Px48dDj506dSoiIg4dOhQREZcvXx5aP3PmzKvapaWlePDgQf0DZUfSiIiIiGPH jsW9e/didfVP2+j19fWIiHj27FlEROzdu3eo5uXj6+vrMT09HU+fPt2mo2Wn6dWIpqYiFgtj nxl/s7Ozcfv27Vdf37lzJyIi9u3bFxERR48eHXr+ysrK0PN27XKlz5vxJweoxhwR0Az3iIiI iJs3b2768TvU1juPaH5+81mBFuZc1I+uv3v3bqyvr8fx48dTXn+kxvOYWiePCGiaPCKgGe4R ERERp0+fjt27d8f9+/ezD4UJJI8ISOfSDKjGHBHQDPeIiIiIa9eubfrxPdTWe45oMNh8ViB7 zkT91uUJ/bXvVfr6iwszI9cjnoxcff/IbEf9aFe/u15Uv/LNm+fxREQsLp4tev35qYtF9feW i8qLf/59uDQDqjFHBDTDPSIiIuK9996Lt956aygGBLaLOSIgnUszoBpzREAz3CMiIuQRkUse kfrqeURdc0LjbjvyeMaZPCKgaeaIgGa4R0REyCMilzkiIJ1LM6Aac0RAM9wjIiLkEZFLHpH6 zjyi8jydD4rqbxRVR1y8slBUf77w/H89P1/0+qPTkHr4xddF5YvyiICWmSMCmuEeEREhj4hc 5oiAdC7NgGrMEQHNcI+IiJBHRC55ROo784gmXXEeT/mYTSp5REDTzBEBzXCPiIiQR0Quc0RA OpdmQDXmiIBmTD16uNp5X/vAwXf/4u73653OetvrX3xxLNbWdsXPfvbvY3l81ttdf/RwNbr0 akTsfL/+zW/i+7Xv46c//Un2oTCBXJoB6TQiIJ1LMyIiYs+ePRExFc+e/W/2oTCB7IiAdBoR kE4jAtJpRERExL/+6lfx+eefZx8GE0ojAtJpREA6jQhI93/0J7RkrqYh9AAAAABJRU5ErkJg gg== --------------632197BDD2FAB74B2988D217--
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 23 Aug 2019 20:11:44 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Aug 23 16:11:44 2019 Received: from localhost ([127.0.0.1]:41254 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i1FuR-0008DQ-TJ for submit <at> debbugs.gnu.org; Fri, 23 Aug 2019 16:11:44 -0400 Received: from eggs.gnu.org ([209.51.188.92]:45983) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1i1FuP-0008DB-PO for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 16:11:42 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:49533) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <eliz@HIDDEN>) id 1i1FuK-0003Ej-2X; Fri, 23 Aug 2019 16:11:36 -0400 Received: from [176.228.60.248] (port=4342 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1i1FuI-0004Q4-UG; Fri, 23 Aug 2019 16:11:35 -0400 Date: Fri, 23 Aug 2019 23:11:46 +0300 Message-Id: <83blwfk5fh.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Paul Eggert <eggert@HIDDEN> In-reply-to: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> (message from Paul Eggert on Fri, 23 Aug 2019 12:37:12 -0700) Subject: Re: bug#37153: 26.1; some png images scrambled References: <28732.94605.161707.23903@HIDDEN> <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org, winkler@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Paul Eggert <eggert@HIDDEN> > Date: Fri, 23 Aug 2019 12:37:12 -0700 > Cc: 37153 <at> debbugs.gnu.org > > I didn't reproduce the problem with Emacs master on Ubuntu 18.04.3 LTS. The > Emacs display agrees with the Gimp's display of that tiny image. Also, the rpng > test program of the librpng 1.6.37 (the current version) also displays the image > the same way. I had to patch librpng with the attached to get the test program > to compile. Please show the screenshot of the image as you saw it. Otherwise, it's hard to understand what do you mean by "not reproducing" the problem. Thanks.
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
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To: Roland Winkler <winkler@HIDDEN>
From: Paul Eggert <eggert@HIDDEN>
Subject: 26.1; some png images scrambled
Organization: UCLA Computer Science Department
Message-ID: <5b006777-5e97-a641-6f93-83a437ca9ca7@HIDDEN>
Date: Fri, 23 Aug 2019 12:37:12 -0700
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I didn't reproduce the problem with Emacs master on Ubuntu 18.04.3 LTS. The
Emacs display agrees with the Gimp's display of that tiny image. Also, the rpng
test program of the librpng 1.6.37 (the current version) also displays the image
the same way. I had to patch librpng with the attached to get the test program
to compile.
Do you see the same problem when using Emacs master? If not, then perhaps we can
just marked the bug as fixed in the next release.
--------------E88883693D964CCD1F5989A2
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diff -pru libpng-1.6.37/contrib/gregbook/readpng.c libpng-1.6.37-fixed/contrib/gregbook/readpng.c
--- libpng-1.6.37/contrib/gregbook/readpng.c 2019-04-14 11:10:32.000000000 -0700
+++ libpng-1.6.37-fixed/contrib/gregbook/readpng.c 2019-08-23 12:14:13.106180379 -0700
@@ -266,7 +266,7 @@ uch *readpng_get_image(double display_ex
/* Guard against integer overflow */
if (height > ((size_t)(-1))/rowbytes) {
- fprintf(stderr, "readpng: image_data buffer would be too large\n",
+ fprintf(stderr, "readpng: image_data buffer would be too large\n");
return NULL;
}
--------------E88883693D964CCD1F5989A2--
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 23 Aug 2019 15:34:10 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Aug 23 11:34:10 2019 Received: from localhost ([127.0.0.1]:41005 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i1BZq-0004HD-5n for submit <at> debbugs.gnu.org; Fri, 23 Aug 2019 11:34:10 -0400 Received: from eggs.gnu.org ([209.51.188.92]:53329) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1i1BZo-0004H1-Vi for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 11:34:09 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:44667) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <eliz@HIDDEN>) id 1i1BZj-00058u-TB for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 11:34:03 -0400 Received: from [176.228.60.248] (port=3399 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1i1BZi-00038T-1P; Fri, 23 Aug 2019 11:34:03 -0400 Date: Fri, 23 Aug 2019 18:34:09 +0300 Message-Id: <83h867kia6.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: "Roland Winkler" <winkler@HIDDEN> In-reply-to: <328.13047.864816.23904@HIDDEN> (winkler@HIDDEN) Subject: Re: bug#37153: 26.1; some png images scrambled References: <28732.94605.161707.23903@HIDDEN> <83d0gwb74z.fsf@HIDDEN> <53342.98395.524648.23903@HIDDEN> <83v9uojclw.fsf@HIDDEN> <328.13047.864816.23904@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Date: Fri, 23 Aug 2019 10:07:52 -0500 > From: "Roland Winkler" <winkler@HIDDEN> > Cc: 37153 <at> debbugs.gnu.org > > https://sourceforge.net/p/png-mng/mailman/message/36746994/ Thanks, let's see what this brings up.
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 23 Aug 2019 15:08:03 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Aug 23 11:08:03 2019 Received: from localhost ([127.0.0.1]:40996 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i1BAY-0003ei-Um for submit <at> debbugs.gnu.org; Fri, 23 Aug 2019 11:08:03 -0400 Received: from eggs.gnu.org ([209.51.188.92]:48295) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <winkler@HIDDEN>) id 1i1BAW-0003eB-Fq for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 11:08:01 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:44293) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <winkler@HIDDEN>) id 1i1BAR-0007xT-Ek for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 11:07:55 -0400 Received: from [2602:30a:2e52:d720:65b7:1416:12e7:8bfb] (port=48962 helo=regnitz) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from <winkler@HIDDEN>) id 1i1BAQ-0005wR-Kr; Fri, 23 Aug 2019 11:07:54 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <328.13047.864816.23904@HIDDEN> Date: Fri, 23 Aug 2019 10:07:52 -0500 From: "Roland Winkler" <winkler@HIDDEN> To: Eli Zaretskii <eliz@HIDDEN> Subject: Re: bug#37153: 26.1; some png images scrambled In-Reply-To: <83v9uojclw.fsf@HIDDEN> References: <28732.94605.161707.23903@HIDDEN> <83d0gwb74z.fsf@HIDDEN> <53342.98395.524648.23903@HIDDEN> <83v9uojclw.fsf@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) On Fri Aug 23 2019 Eli Zaretskii wrote: > > No, I do not know the culprit. How can I find out? > > By asking on the libpng-related forum (assuming there is such a > thing)? > > > (On my GNU/linux computer, eog displays the image correctly. Which > > other software uses libpng similar to emacs?) > > I don't know. Anyone? See https://sourceforge.net/p/png-mng/mailman/message/36746994/
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 23 Aug 2019 12:22:02 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Aug 23 08:22:02 2019 Received: from localhost ([127.0.0.1]:39219 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i18Zt-0001Iv-7r for submit <at> debbugs.gnu.org; Fri, 23 Aug 2019 08:22:02 -0400 Received: from eggs.gnu.org ([209.51.188.92]:49174) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1i18Zr-0001Ih-EG for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 08:21:59 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:41397) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <eliz@HIDDEN>) id 1i18Zm-0003cr-5U for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 08:21:54 -0400 Received: from [176.228.60.248] (port=3339 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1i18Zj-00057c-IX; Fri, 23 Aug 2019 08:21:52 -0400 Date: Fri, 23 Aug 2019 15:22:03 +0300 Message-Id: <83v9uojclw.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: "Roland Winkler" <winkler@HIDDEN> In-reply-to: <53342.98395.524648.23903@HIDDEN> (winkler@HIDDEN) Subject: Re: bug#37153: 26.1; some png images scrambled References: <28732.94605.161707.23903@HIDDEN> <83d0gwb74z.fsf@HIDDEN> <53342.98395.524648.23903@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Date: Fri, 23 Aug 2019 06:39:10 -0500 > From: "Roland Winkler" <winkler@HIDDEN> > Cc: 37153 <at> debbugs.gnu.org > > On Fri Aug 23 2019 Eli Zaretskii wrote: > > Are you sure this is not a libpng bug? > > No, I do not know the culprit. How can I find out? By asking on the libpng-related forum (assuming there is such a thing)? > (On my GNU/linux computer, eog displays the image correctly. Which > other software uses libpng similar to emacs?) I don't know. Anyone?
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 23 Aug 2019 11:48:42 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Aug 23 07:48:41 2019 Received: from localhost ([127.0.0.1]:39191 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i183d-0000Vi-MK for submit <at> debbugs.gnu.org; Fri, 23 Aug 2019 07:48:41 -0400 Received: from eggs.gnu.org ([209.51.188.92]:43934) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <winkler@HIDDEN>) id 1i183b-0000VV-Ur for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 07:48:40 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:38540) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <winkler@HIDDEN>) id 1i17uV-0006tz-N7 for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 07:39:15 -0400 Received: from [2602:30a:2e52:d720:65b7:1416:12e7:8bfb] (port=47944 helo=regnitz) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from <winkler@HIDDEN>) id 1i17uT-0004Rc-3Z; Fri, 23 Aug 2019 07:39:13 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <53342.98395.524648.23903@HIDDEN> Date: Fri, 23 Aug 2019 06:39:10 -0500 From: "Roland Winkler" <winkler@HIDDEN> To: Eli Zaretskii <eliz@HIDDEN> Subject: Re: bug#37153: 26.1; some png images scrambled In-Reply-To: <83d0gwb74z.fsf@HIDDEN> References: <28732.94605.161707.23903@HIDDEN> <83d0gwb74z.fsf@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) On Fri Aug 23 2019 Eli Zaretskii wrote: > Are you sure this is not a libpng bug? No, I do not know the culprit. How can I find out? (On my GNU/linux computer, eog displays the image correctly. Which other software uses libpng similar to emacs?)
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at 37153) by debbugs.gnu.org; 23 Aug 2019 08:47:22 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Aug 23 04:47:22 2019 Received: from localhost ([127.0.0.1]:39130 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i15EA-0002Yf-FH for submit <at> debbugs.gnu.org; Fri, 23 Aug 2019 04:47:22 -0400 Received: from eggs.gnu.org ([209.51.188.92]:38068) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1i15E9-0002YS-8E for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 04:47:21 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:55021) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <eliz@HIDDEN>) id 1i15E4-0002Ch-33 for 37153 <at> debbugs.gnu.org; Fri, 23 Aug 2019 04:47:16 -0400 Received: from [176.228.60.248] (port=2126 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1i15E3-00055Y-9V; Fri, 23 Aug 2019 04:47:15 -0400 Date: Fri, 23 Aug 2019 11:47:24 +0300 Message-Id: <83d0gwb74z.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: "Roland Winkler" <winkler@HIDDEN> In-reply-to: <28732.94605.161707.23903@HIDDEN> (winkler@HIDDEN) Subject: Re: bug#37153: 26.1; some png images scrambled References: <28732.94605.161707.23903@HIDDEN> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 37153 Cc: 37153 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Date: Thu, 22 Aug 2019 23:49:00 -0500 > From: "Roland Winkler" <winkler@HIDDEN> > > put attached file into ~/picture.png > start emacs -Q > evaluate > (insert-image (create-image "~/picture.png")) > The image is scrambled. With imagemagick the image displays correctly > (insert-image (create-image "~/picture.png" 'imagemagick)) > Of course, not all png images are scrambled. So it seems to be a bug > that is triggered only by certain png images. Are you sure this is not a libpng bug?
bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
Full text available.Received: (at submit) by debbugs.gnu.org; 23 Aug 2019 04:49:35 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Aug 23 00:49:35 2019 Received: from localhost ([127.0.0.1]:38831 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1i11W3-0006ci-AU for submit <at> debbugs.gnu.org; Fri, 23 Aug 2019 00:49:35 -0400 Received: from lists.gnu.org ([209.51.188.17]:44528) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <winkler@HIDDEN>) id 1i11W1-0006ca-0Q for submit <at> debbugs.gnu.org; Fri, 23 Aug 2019 00:49:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42201) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from <winkler@HIDDEN>) id 1i11W0-0003r6-0y for bug-gnu-emacs@HIDDEN; Fri, 23 Aug 2019 00:49:32 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-0.2 required=5.0 tests=ALL_TRUSTED,BAYES_50, URIBL_BLOCKED autolearn=disabled version=3.3.2 Received: from fencepost.gnu.org ([2001:470:142:3::e]:52505) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <winkler@HIDDEN>) id 1i11Vz-0007tf-Tw for bug-gnu-emacs@HIDDEN; Fri, 23 Aug 2019 00:49:31 -0400 Received: from [2602:30a:2e52:d720:65b7:1416:12e7:8bfb] (port=47782 helo=regnitz) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from <winkler@HIDDEN>) id 1i11Vz-0006Zr-GH for bug-gnu-emacs@HIDDEN; Fri, 23 Aug 2019 00:49:31 -0400 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="xv0RBlNYQj" Content-Transfer-Encoding: 7bit Message-ID: <28732.94605.161707.23903@HIDDEN> Date: Thu, 22 Aug 2019 23:49:00 -0500 From: "Roland Winkler" <winkler@HIDDEN> To: bug-gnu-emacs@HIDDEN Subject: 26.1; some png images scrambled X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) --xv0RBlNYQj Content-Type: text/plain; charset=us-ascii Content-Description: message body text Content-Transfer-Encoding: 7bit put attached file into ~/picture.png start emacs -Q evaluate (insert-image (create-image "~/picture.png")) The image is scrambled. With imagemagick the image displays correctly (insert-image (create-image "~/picture.png" 'imagemagick)) Of course, not all png images are scrambled. So it seems to be a bug that is triggered only by certain png images. In GNU Emacs 26.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.18.9) of 2018-05-29 built on regnitz Windowing system distributor 'The X.Org Foundation', version 11.0.11804000 System Description: Ubuntu 16.04.6 LTS Configured features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 THREADS LCMS2 Important settings: value of $LC_COLLATE: C value of $LANG: en_US.utf8 value of $XMODIFIERS: locale-coding-system: utf-8-unix Major mode: Fundamental --xv0RBlNYQj Content-Type: image/png; name="picture.png" Content-Disposition: inline; filename="picture.png" Content-Transfer-Encoding: base64 iVBORw0KGgoAAAANSUhEUgAAABEAAAARCAMAAAAMs7fIAAAAAXNSR0IArs4c6QAAAGBQTFRFAAAA AAAAAABmADqQAGa2OgA6OgBmOjqQOma2OpDbZgAAZgA6ZgBmZjqQZmY6ZmZmZpDbZrb/kDoAkNv/ tmYAtmY6ttv/tv//25A627Zm29uQ2////7Zm/9uQ//+2///bnIV3LAAAAAF0Uk5TAEDm2GYAAAAJ cEhZcwAADsQAAA7EAZUrDhsAAAAZdEVYdFNvZnR3YXJlAE1pY3Jvc29mdCBPZmZpY2V/7TVxAAAA gklEQVQoU62PaxKCMAyEEwEFEZA+pAhN739LN53BcgD2RyfJJt9siS6T42ojeXL3J8rUW6Id40Px 7WCHskJhVt9j75C30lt5LQUzbMl08XHCtIBUa8a4Wl9FxmacUe4TXEoGdTI3YGT46m1gbYKm8fZM 03Pm7Jag9w8hRhnkjzmu6QdI+QcKQtQBswAAAABJRU5ErkJggg== --xv0RBlNYQj--
"Roland Winkler" <winkler@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#37153; Package emacs.
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