[EGIT] [legacy-imlib2] 01/05: Loaders: Debug macro cleanups

2023-01-29 Thread Enlightenment Git 

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commit 495fb5e6f800ed8d171a18510f3603d5aa6a7932
Author: Kim Woelders 
AuthorDate: Sat Jan 28 14:09:44 2023 +0100

Loaders: Debug macro cleanups
---
 src/lib/Imlib2_Loader.h   | 10 ++
 src/modules/loaders/loader_ani.c  |  6 --
 src/modules/loaders/loader_bmp.c  | 10 +-
 src/modules/loaders/loader_tiff.c |  2 +-
 4 files changed, 12 insertions(+), 16 deletions(-)

diff --git a/src/lib/Imlib2_Loader.h b/src/lib/Imlib2_Loader.h
index 6bd4c36..63f8637 100644
--- a/src/lib/Imlib2_Loader.h
+++ b/src/lib/Imlib2_Loader.h
@@ -69,15 +69,16 @@ typedef struct _ImlibImage ImlibImage;
 
 #if IMLIB2_DEBUG
 
-#define DC(M, fmt...) if (__imlib_debug & M) __imlib_printf(DBG_PFX, fmt)
+#define DC(PFX, M, fmt...) if (__imlib_debug & M) __imlib_printf(PFX, fmt)
 
 #define DBG_FILE	0x0001
 #define DBG_LOAD	0x0002
 #define DBG_LDR 	0x0004
 #define DBG_LDR2	0x0008
 
-#define D(fmt...)  DC(DBG_LDR, fmt)
-#define DL(fmt...) DC(DBG_LDR2, fmt)
+#define D(fmt...)  DC(DBG_PFX, DBG_LDR, fmt)
+#define Dx(fmt...) DC(NULL, DBG_LDR, fmt)
+#define DL(fmt...) DC(DBG_PFX, DBG_LDR2, fmt)
 
 extern unsigned int __imlib_debug;
 
@@ -87,8 +88,9 @@ unsigned int__imlib_time_us(void);
 
 #else
 
-#define D(fmt...)
 #define DC(fmt...)
+#define D(fmt...)
+#define Dx(fmt...)
 #define DL(fmt...)
 
 #endif /* IMLIB2_DEBUG */
diff --git a/src/modules/loaders/loader_ani.c b/src/modules/loaders/loader_ani.c
index 00eadfc..9bb344e 100644
--- a/src/modules/loaders/loader_ani.c
+++ b/src/modules/loaders/loader_ani.c
@@ -8,12 +8,6 @@
 #include "config.h"
 #include "Imlib2_Loader.h"
 
-#if IMLIB2_DEBUG
-#define Dx(fmt...) if (__imlib_debug & DBG_LDR) __imlib_printf(NULL, fmt)
-#else
-#define Dx(fmt...)
-#endif
-
 #define DBG_PFX "LDR-ani"
 
 #define T(a,b,c,d) ((a << 0) | (b << 8) | (c << 16) | (d << 24))
diff --git a/src/modules/loaders/loader_bmp.c b/src/modules/loaders/loader_bmp.c
index 9838fdd..0ace8b6 100644
--- a/src/modules/loaders/loader_bmp.c
+++ b/src/modules/loaders/loader_bmp.c
@@ -11,7 +11,7 @@
 #include "Imlib2_Loader.h"
 
 #define DBG_PFX "LDR-bmp"
-#define Dx(fmt...)
+#define DD(fmt...)
 
 static const char  *const _formats[] = { "bmp" };
 
@@ -459,7 +459,7 @@ _load(ImlibImage * im, int load_data)
   byte1 = buffer_ptr[0];
   byte2 = buffer_ptr[1];
   buffer_ptr += 2;
-  Dx("%3d %3d: %02x %02x (%d %d)\n",
+  DD("%3d %3d: %02x %02x (%d %d)\n",
  x, y, byte1, byte2, byte2 >> 4, byte2 & 0xf);
   if (byte1)
 {
@@ -520,7 +520,7 @@ _load(ImlibImage * im, int load_data)
 for (j = 0; j < l; j++)
   {
  byte = *buffer_ptr++;
- Dx("%3d %3d:   %d/%d: %2d %2d\n",
+ DD("%3d %3d:   %d/%d: %2d %2d\n",
 x, y, j, l, byte >> 4, byte & 0xf);
  *ptr++ = argbCmap[byte >> 4];
  if (++j < l)
@@ -583,7 +583,7 @@ _load(ImlibImage * im, int load_data)
   byte1 = buffer_ptr[0];
   byte2 = buffer_ptr[1];
   buffer_ptr += 2;
-  Dx("%3d %3d: %02x %02x\n", x, y, byte1, byte2);
+  DD("%3d %3d: %02x %02x\n", x, y, byte1, byte2);
   if (byte1)
 {
pixel = argbCmap[byte2];
@@ -632,7 +632,7 @@ _load(ImlibImage * im, int load_data)
 for (j = 0; j < l; j++)
   {
  byte = *buffer_ptr++;
- Dx("%3d %3d:   %d/%d: %2d\n",
+ DD("%3d %3d:   %d/%d: %2d\n",
 x, y, j, l, byte);
  *ptr++ = argbCmap[byte];
   }
diff --git a/src/modules/loaders/loader_tiff.c b/src/modules/loaders/loader_tiff.c
index c9a4ec4..00ca8cb 100644
--- a/src/modules/loaders/loader_tiff.c
+++ b/src/modules/loaders/loader_tiff.c
@@ -8,7 +8,7 @@
 
 static const char  *const _formats[] = { "tiff", "tif" };
 
-#define DD(fmt...)  DC(0x80, fmt)
+#define DD(fmt...)  DC(DBG_PFX, 0x80, fmt)
 
 static struct {
const unsigned char *data, *dptr;


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[EGIT] [legacy-imlib2] 04/05: autofoo: Add __PACKED__ for optional struct packing

2023-01-29 Thread Enlightenment Git 

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commit 9222dad42dcc50a931f04cb46bfb11c7c5a5c4db
Author: Kim Woelders 
AuthorDate: Sat Jan 28 11:04:30 2023 +0100

autofoo: Add __PACKED__ for optional struct packing
---
 configure.ac |  2 ++
 m4/ec_packing.m4 | 23 +++
 2 files changed, 25 insertions(+)

diff --git a/configure.ac b/configure.ac
index 791f44d..2b8b78f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -259,6 +259,7 @@ AM_CONDITIONAL(BUILD_DOC, test "$enable_doc_build" = "yes")
 
 EC_C_WARNINGS()
 EC_C_VISIBILITY(yes)
+EC_C_PACKING()
 EC_C_ASAN()
 
 VERSION_MAJOR=`echo $VERSION | awk -F. '{print $1}'`
@@ -328,6 +329,7 @@ echo
 echo "Include filters...: $enable_filters"
 echo "Include text functions: $enable_text"
 echo "Use visibility hiding.: $enable_visibility_hiding"
+echo "Use struct packing: $enable_packing"
 echo
 echo "Installation path.: $prefix"
 echo
diff --git a/m4/ec_packing.m4 b/m4/ec_packing.m4
new file mode 100644
index 000..ec9699f
--- /dev/null
+++ b/m4/ec_packing.m4
@@ -0,0 +1,23 @@
+dnl Copyright (C) 2023 Kim Woelders
+dnl This code is public domain and can be freely used or copied.
+
+dnl Macro to define __PACKED__ if supported and --enable-packing is given
+
+dnl Usage: EC_C_PACKING()
+
+AC_DEFUN([EC_C_PACKING], [
+  AC_ARG_ENABLE([packing],
+[AS_HELP_STRING([--enable-packing],
+[enable packing structures for unaligned access @<:@default=no@:>@])],,
+[enable_packing=no])
+
+  if test "x$enable_packing" = "xyes"; then
+if test -n "$GCC"; then
+  AC_DEFINE(__PACKED__, __attribute__((packed)), [Use struct packing for unaligned access])
+else
+  AC_MSG_ERROR([Struct packing was requested but no method is known])
+fi
+  else
+AC_DEFINE(__PACKED__, , [Not using struct packing for unaligned access])
+  fi
+])


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[EGIT] [legacy-imlib2] 03/05: Loaders: Avoid cast-align warnings with -Wcast-align=strict

2023-01-29 Thread Enlightenment Git 

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commit d27354926a3dab93584b4c1988995eea512d6fe5
Author: Kim Woelders 
AuthorDate: Fri Jan 27 08:51:54 2023 +0100

Loaders: Avoid cast-align warnings with -Wcast-align=strict
---
 src/lib/Imlib2_Loader.h  |  2 ++
 src/modules/loaders/loader_ani.c | 12 
 src/modules/loaders/loader_bmp.c |  4 ++--
 src/modules/loaders/loader_png.c |  9 ++---
 src/modules/loaders/loader_tga.c |  3 ++-
 5 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/src/lib/Imlib2_Loader.h b/src/lib/Imlib2_Loader.h
index 63f8637..ec0c36e 100644
--- a/src/lib/Imlib2_Loader.h
+++ b/src/lib/Imlib2_Loader.h
@@ -224,4 +224,6 @@ int decompress_load(ImlibImage * im, int load_data,
 
 #define QUIT_WITH_RC(_err) { rc = _err; goto quit; }
 
+#define PCAST(T, p) ((T)(const void *)(p))
+
 #endif /* IMLIB2_LOADER_H */
diff --git a/src/modules/loaders/loader_ani.c b/src/modules/loaders/loader_ani.c
index 034ba97..b436f46 100644
--- a/src/modules/loaders/loader_ani.c
+++ b/src/modules/loaders/loader_ani.c
@@ -28,7 +28,8 @@ static const char  *const _formats[] = { "ani" };
 typedef struct {
unsigned char   nest;
int nframes, nfsteps;
-   uint32_t   *rates, *seq;
+   const uint32_t *rates;
+   const uint32_t *seq;
 } riff_ctx_t;
 
 typedef struct {
@@ -119,7 +120,8 @@ _riff_parse(ImlibImage * im, riff_ctx_t * ctx, const char *fdata,
  break;
   }
 
-chunk = (const ani_chunk_t *)fptr;
+chunk = PCAST(const ani_chunk_t *, fptr);
+
 type = SWAP_LE_32(chunk->hdr.type);
 size = SWAP_LE_32(chunk->hdr.size);
 
@@ -202,7 +204,8 @@ _riff_parse(ImlibImage * im, riff_ctx_t * ctx, const char *fdata,
  pf->frame_delay = (1000 * SWAP_LE_32(AH.rate)) / 60;
  break;
   case RIFF_TYPE_rate:
- ctx->rates = (uint32_t *) (fptr + 8);
+ ctx->rates = PCAST(const uint32_t *, fptr + 8);
+
  if ((int)size != 4 * ctx->nfsteps)
{
   D("rate chunk size mismatch: %d != %d\n", size,
@@ -216,7 +219,8 @@ _riff_parse(ImlibImage * im, riff_ctx_t * ctx, const char *fdata,
  Dx("\n");
  break;
   case RIFF_TYPE_seq:
- ctx->seq = (uint32_t *) (fptr + 8);
+ ctx->seq = PCAST(const uint32_t *, fptr + 8);
+
  if ((int)size != 4 * ctx->nfsteps)
{
   D("seq chunk size mismatch: %d != %d\n", size,
diff --git a/src/modules/loaders/loader_bmp.c b/src/modules/loaders/loader_bmp.c
index 0ace8b6..c47363a 100644
--- a/src/modules/loaders/loader_bmp.c
+++ b/src/modules/loaders/loader_bmp.c
@@ -681,7 +681,7 @@ _load(ImlibImage * im, int load_data)
   {
  for (x = 0; x < w && buffer_ptr < buffer_end_safe; x++)
{
-  pixel = *(unsigned short *)buffer_ptr;
+  pixel = *PCAST(const unsigned short *, buffer_ptr);
 
   if (im->has_alpha)
  a = SCALE(a, pixel);
@@ -730,7 +730,7 @@ _load(ImlibImage * im, int load_data)
   {
  for (x = 0; x < w && buffer_ptr < buffer_end_safe; x++)
{
-  pixel = *(unsigned int *)buffer_ptr;
+  pixel = *PCAST(const unsigned int *, buffer_ptr);
 
   if (im->has_alpha)
  a = SCALE(a, pixel);
diff --git a/src/modules/loaders/loader_png.c b/src/modules/loaders/loader_png.c
index 9e58273..34c5b9b 100644
--- a/src/modules/loaders/loader_png.c
+++ b/src/modules/loaders/loader_png.c
@@ -244,7 +244,8 @@ row_callback(png_struct * png_ptr, png_byte * new_row,
PNG_PASS_COLS(im->w, pass), PNG_PASS_ROWS(im->h, pass));
 y = y0 + dy * row_num;
 
-sptr = (const uint32_t *)new_row;   /* Assuming aligned */
+sptr = PCAST(const uint32_t *, new_row);/* Assuming aligned */
+
 dptr = im->data + y * im->w;
 for (x = x0; x < im->w; x += dx)
   {
@@ -341,7 +342,8 @@ _load(ImlibImage * im, int load_data)
 
for (ic = 0;; ic++, fptr += 8 + len + 4)
  {
-chunk = (const png_chunk_t *)fptr;
+chunk = PCAST(const png_chunk_t *, fptr);
+
 len = htonl(chunk->hdr.len);
 D("Scan %3d: %06lx: %6d: %.4s: ", ic,
   fptr - (unsigned char *)im->fi->fdata, len, chunk->hdr.name);
@@ -429,7 +431,8 @@ _load(ImlibImage * im, int load_data)
 
for (ic = 0;; ic++, fptr += 8 + len + 4)
  {
-chunk = (const png_chunk_t *)fptr;
+chunk = PCAST(const png_chunk_t *, fptr);
+
 len = htonl(chunk->hdr.len);
 D("Chunk %3d: %06lx: %6d: %.4s: ", ic,
   fptr - (unsigned char *)im->fi->fdata, len, chunk->hdr.name);
diff --git a/src/modules/loaders/loader_tga.c

[EGIT] [legacy-imlib2] 02/05: ANI loader: Use struct to access chunk data

2023-01-29 Thread Enlightenment Git 

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git pushed a commit to branch master
in repository legacy-imlib2.


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commit 6337c54d30ab58cc9160b4807b924f4386a17129
Author: Kim Woelders 
AuthorDate: Sat Jan 28 09:52:08 2023 +0100

ANI loader: Use struct to access chunk data
---
 src/modules/loaders/loader_ani.c | 57 
 1 file changed, 35 insertions(+), 22 deletions(-)

diff --git a/src/modules/loaders/loader_ani.c b/src/modules/loaders/loader_ani.c
index 9bb344e..034ba97 100644
--- a/src/modules/loaders/loader_ani.c
+++ b/src/modules/loaders/loader_ani.c
@@ -32,16 +32,27 @@ typedef struct {
 } riff_ctx_t;
 
 typedef struct {
-   uint32_tsize;// Size of chunk data (=36)
-   uint32_tframes;  // Number of frames in file
-   uint32_tsteps;   // Number of steps in animation sequence
-   uint32_twidth;   // Image width (raw data only?)
-   uint32_theight;  // Image height (raw data only?)
-   uint32_tbpp; // Bits per pixel (raw data only?)
-   uint32_tplanes;  // N. planes (raw data only?)
-   uint32_trate;// Default rate in 1/60s
-   uint32_tflags;   // Flags: ANIH_FLAG_...
-} anih_data_t;
+   struct {
+  uint32_ttype; // Chunk type
+  uint32_tsize; // Chunk size
+   } hdr;
+   union {
+  struct {
+ uint32_tname;  // List name
+  } list;
+  struct {
+ uint32_tsize;  // Size of chunk data (=36)
+ uint32_tframes;// Number of frames in file
+ uint32_tsteps; // Number of steps in animation sequence
+ uint32_twidth; // Image width (raw data only?)
+ uint32_theight;// Image height (raw data only?)
+ uint32_tbpp;   // Bits per pixel (raw data only?)
+ uint32_tplanes;// N. planes (raw data only?)
+ uint32_trate;  // Default rate in 1/60s
+ uint32_tflags; // Flags: ANIH_FLAG_...
+  } anih;
+   };
+} ani_chunk_t;
 
 #define ANIH_FLAG_ICO	0x01// Frames are icons or cursors (otherwiwe raw - bmp?)
 #define ANIH_FLAG_SEQ	0x02// Image contains seq chunk
@@ -76,7 +87,6 @@ _load_embedded(ImlibImage * im, int load_data, const char *data,
return rc;
 }
 
-#define LE32(p) (SWAP_LE_32(*((const uint32_t*)(p
 #define OFFS(p) ((const char*)(p) - (const char*)im->fi->fdata)
 
 static int
@@ -88,6 +98,7 @@ _riff_parse(ImlibImage * im, riff_ctx_t * ctx, const char *fdata,
int size, avail;
int fcount, i;
ImlibImageFrame*pf;
+   const ani_chunk_t  *chunk;
 
rc = LOAD_FAIL;
ctx->nest += 1;
@@ -108,8 +119,9 @@ _riff_parse(ImlibImage * im, riff_ctx_t * ctx, const char *fdata,
  break;
   }
 
-type = LE32(fptr);
-size = LE32(fptr + 4);
+chunk = (const ani_chunk_t *)fptr;
+type = SWAP_LE_32(chunk->hdr.type);
+size = SWAP_LE_32(chunk->hdr.size);
 
 D("%5lu: %*s Chunk: %.4s size %u: ",
   OFFS(fptr), ctx->nest, "", fptr, size);
@@ -118,7 +130,8 @@ _riff_parse(ImlibImage * im, riff_ctx_t * ctx, const char *fdata,
   {
  Dx("\n");
  /* First chunk of file */
- if (type != RIFF_TYPE_RIFF || (LE32(fptr + 8)) != RIFF_NAME_ACON)
+ if (type != RIFF_TYPE_RIFF ||
+ (SWAP_LE_32(chunk->list.name)) != RIFF_NAME_ACON)
 return LOAD_FAIL;
  size = 4;
  continue;
@@ -161,16 +174,16 @@ _riff_parse(ImlibImage * im, riff_ctx_t * ctx, const char *fdata,
  rc = _load_embedded(im, 1, fptr + 8, size);
  break;
   case RIFF_TYPE_anih:
-#define AH ((const anih_data_t*)(fptr + 8))
+#define AH (chunk->anih)
 /**INDENT-OFF**/
  Dx("sz=%u nf=%u/%u WxH=%ux%u bc=%u np=%u dr=%u fl=%u\n",
-	SWAP_LE_32(AH->size), SWAP_LE_32(AH->frames), SWAP_LE_32(AH->steps),
-	SWAP_LE_32(AH->width), SWAP_LE_32(AH->height),
-	SWAP_LE_32(AH->bpp), SWAP_LE_32(AH->planes),
-	SWAP_LE_32(AH->rate), SWAP_LE_32(AH->flags));
+	SWAP_LE_32(AH.size), SWAP_LE_32(AH.frames), SWAP_LE_32(AH.steps),
+	SWAP_LE_32(AH.width), SWAP_LE_32(AH.height),
+	SWAP_LE_32(AH.bpp), SWAP_LE_32(AH.planes),
+	SWAP_LE_32(AH.rate), SWAP_LE_32(AH.flags));
 /**INDENT-ON**/
- ctx->nframes = SWAP_LE_32(AH->frames);
- ctx->nfsteps = SWAP_LE_32(AH->steps);
+ ctx->nframes = SWAP_LE_32(AH.frames);
+ ctx->nfsteps = SWAP_LE_32(AH.steps);
  if (im->frame <= 0)
 break;
  if (ctx->nfsteps < ctx->nframes)
@@ -186,7 +199,7 @@ _riff_parse(ImlibImage * im, riff_ctx_t * ctx, const char *fdata,

[EGIT] [legacy-imlib2] 05/05: ANI, PNG, TGA loaders: Enable handling of unaligned data

2023-01-29 Thread Enlightenment Git 

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git pushed a commit to branch master
in repository legacy-imlib2.


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commit 5c226954c114f1ced7027498fd2debd34bea08f2
Author: Kim Woelders 
AuthorDate: Sat Jan 28 09:35:50 2023 +0100

ANI, PNG, TGA loaders: Enable handling of unaligned data

Fixes warnings seen with -fsanitize=undefined when using
--enable-packed.
---
 src/modules/loaders/loader_ani.c |  2 +-
 src/modules/loaders/loader_png.c | 12 ++--
 src/modules/loaders/loader_tga.c |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/modules/loaders/loader_ani.c b/src/modules/loaders/loader_ani.c
index b436f46..cd38236 100644
--- a/src/modules/loaders/loader_ani.c
+++ b/src/modules/loaders/loader_ani.c
@@ -32,7 +32,7 @@ typedef struct {
const uint32_t *seq;
 } riff_ctx_t;
 
-typedef struct {
+typedef struct __PACKED__ {
struct {
   uint32_ttype; // Chunk type
   uint32_tsize; // Chunk size
diff --git a/src/modules/loaders/loader_png.c b/src/modules/loaders/loader_png.c
index 34c5b9b..b6536d9 100644
--- a/src/modules/loaders/loader_png.c
+++ b/src/modules/loaders/loader_png.c
@@ -32,7 +32,7 @@ static const char  *const _formats[] = { "png" };
 
 #define mm_check(p) ((const char *)(p) <= (const char *)im->fi->fdata + im->fi->fsize)
 
-typedef struct {
+typedef struct __PACKED__ {
uint32_tlen;
union {
   uint32_ttype;
@@ -41,7 +41,7 @@ typedef struct {
 } png_chunk_hdr_t;
 
 /* IHDR */
-typedef struct {
+typedef struct __PACKED__ {
uint32_tw;   // Width
uint32_th;   // Height
uint8_t depth;   // Bit depth  (1, 2, 4, 8, or 16)
@@ -54,13 +54,13 @@ typedef struct {
 #define _PNG_IHDR_SIZE	(4 + 4 + 13 + 4)
 
 /* acTL */
-typedef struct {
+typedef struct __PACKED__ {
uint32_tnum_frames;  // Number of frames
uint32_tnum_plays;   // Number of times to loop this APNG.  0 indicates infinite looping.
 } png_actl_t;
 
 /* fcTL */
-typedef struct {
+typedef struct __PACKED__ {
uint32_tframe;   // --   // Sequence number of the animation chunk, starting from 0
uint32_tw;   // --   // Width of the following frame
uint32_th;   // --   // Height of the following frame
@@ -73,12 +73,12 @@ typedef struct {
 } png_fctl_t;
 
 /* fdAT */
-typedef struct {
+typedef struct __PACKED__ {
uint32_tframe;   // --   // Sequence number of the animation chunk, starting from 0
uint8_t data[];
 } png_fdat_t;
 
-typedef struct {
+typedef struct __PACKED__ {
png_chunk_hdr_t hdr;
union {
   png_ihdr_t  ihdr;
diff --git a/src/modules/loaders/loader_tga.c b/src/modules/loaders/loader_tga.c
index 1f97ba9..03285d4 100644
--- a/src/modules/loaders/loader_tga.c
+++ b/src/modules/loaders/loader_tga.c
@@ -49,7 +49,7 @@ typedef struct {
unsigned char   descriptor;
 } tga_header;
 
-typedef struct {
+typedef struct __PACKED__ {
unsigned intextensionAreaOffset;
unsigned intdeveloperDirectoryOffset;
charsignature[16];


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[E-devel] [Terminology] Cooperative tiling between Terminology and hosted programs

2023-01-29 Thread Vinícius dos Santos Oliveira 
Hi folks,

in my mind, Terminology tries to push the boundaries of what's possible
with terminal emulators forward. For instance, it has support for embedding
videos and images through custom escape sequences. It obviously expects
programs will make use of the new Terminology features.

It just occurred to me that programas could cooperate with Terminology to
make their own custom tiling. For instance, Emacs has the eshell mode where
Emacs acts as its own terminal emulator taking care of interpreting ANSI
escape sequences and tiling the embedded terminal in its own window all by
itself.

What if Terminology exposed an env var such as
TERMINOLOGY_SOCK=$XDG_RUNTIME_DIR/sock-1234.sock with a path for a UNIX
socket so the program (such as Emacs) could open it to cooperate with
Terminology? Emacs could open a new pty, spawn the embedded shell, and send
a fd to the master end of the new pty back to Terminology. The message
should include the position in the screen for the new embedded terminal.
Now Terminology would only read from the master end so it can draw the
contents of the embedded terminal appropriately in the new tile of the
terminal window. Emacs would still get all the input as usual and only send
input to the new terminal as it pleases (by writing in the master end of
the pty).

So, Terminology already decodes ANSI escape sequences and performs tiling
of terminal windows. The idea is to let applications reuse this
implementation to allow further embedding other interactive programs in
their own windows.

Thoughts?


-- 
Vinícius dos Santos Oliveira
https://vinipsmaker.github.io/

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