|--------------------------------------|-------------|-------------------------|
| OSC 1 3 3 8 ; s i x e l : {data} BEL | SIXEL | Display sixel at (x, y) |
| OSC 1 3 3 8 ; s i x e l : {data} ST | SIXEL | Display sixel at (x, y) |
-| OSC 1 3 3 8 ; F i l e = {data} BEL | DMDISPLAY | Display media at (x, y) |
-| OSC 1 3 3 8 ; F i l e = {data} ST | DMDISPLAY | Display media at (x, y) |
+| OSC 1 3 3 8 ; F i l e = {args} : {data} BEL | DMDISPLAY | Display media at (x, y) |
+| OSC 1 3 3 8 ; F i l e = {args} : {data} ST | DMDISPLAY | Display media at (x, y) |
+| CSI ? 3 0 0 0 h | DECSET 3000 | Enable SCRCHANGE notification |
+| CSI ? 3 0 0 0 l | DECRST 3000 | Disable SCRCHANGE notification |
+| OSC 1 3 3 9 ; Pe ; {args} ST | DMRESP | Terminal response to DMDISPLAY |
| CSI ? 3 0 0 1 h | DECSET 3001 | Enable DMDISPLAY responses |
| CSI ? 3 0 0 1 l | DECRST 3001 | Disable DMDISPLAY responses |
-| OSC 1 3 3 9 ; Pe ; {data} ST | DMRESP | Terminal response to DMDISPLAY |
+
+
+
+If SCRCHANGE is set/enabled, then the terminal will send the "CSI 6 ;
+cellHeight ; cellWidth t" when the font size has changed, and "CSI 8 ;
+rows ; columns t" when the number of rows/columns on the screen has
+changed.
+
For the SIXEL command:
For the DMDISPLAY command:
-* The {data} is a set of key-value pairs (each pair separated by
+* The {args} is a set of key-value pairs (each pair separated by
semicolon (';')), followed by a colon (':'), followed by a base-64
- encoded string.
+ encoded string ({data}).
* A key can be any alpha-numeric ASCII string ('0' - '9', 'A' - 'Z',
'a' - 'z').
| Key | Default Value | Description |
|--------------|---------------|----------------------------------------------|
+| type | "image/rgb" | mime-type describing data field |
+| url | "" | If set, a location containing the media data |
| width | 1 | Number of Cells or pixels wide to display in |
| height | 1 | Number of Cells or pixels high to display in |
| scale | "none" | Scale/zoom option, see below |
| align | "nw" | Align image to edge option, see below |
-| type | "image/rgb" | mime-type describing data field |
-| url | "" | If set, a location containing the media data |
+| sourceX | 0 | Media source X position to display |
+| sourceY | 0 | Media source Y position to display |
+| sourceWidth | "auto" | Media width in pixels to display |
+| sourceHeight | "auto" | Media height in pixels to display |
A terminal may support additional keys. If a key is specified but not
supported by the terminal, then it is ignored without error.
+The "type" value is a mime-type string describing the format of the
+base64-encoded binary data. The terminal must support at mimunum these
+mime-types:
+
+| Type String | Description |
+|---------------|--------------------------------------------------------------|
+| "image/rgb" | Big-endian-encoded 24-bit red, green, blue values |
+| "image/rgba" | Big-endian-encoded 32-bit red, green, blue, alpha values |
+| "image/png" | PNG file data as described by (reference to PNG format) |
+
+A terminal may support additional types. An application can detect
+terminal support for a format by: enabling terminal responses (DECSET
+3001), sending a DMDISPLAY command, and examining the terminal's
+response sequence for success or error.
+
+
+
+The "url" value is a RFC-XXXX defined Universal Resource Located,
+encoded in RFC-XXXX form as a printable ASCII string not containing:
+whitespace, colon (':'), semicolon (';'), or equals ('=').
+
+A terminal is not required to support any URLs.
+
+
+
The "width" and "height" values can take the following forms:
| Value | Meaning |
-The "type" value is a mime-type string describing the format of the
-base64-encoded binary data. The terminal must support at mimunum these
-mime-types:
-
-| Type String | Description |
-|---------------|--------------------------------------------------------------|
-| "image/rgb" | Big-endian-encoded 24-bit red, green, blue values |
-| "image/rgba" | Big-endian-encoded 32-bit red, green, blue, alpha values |
-| "image/png" | PNG file data as described by (reference to PNG format) |
-
-A terminal may support additional types. An application can detect
-terminal support for a format by: enabling terminal responses (DECSET
-3001), sending a DMDISPLAY command, and examining the terminal's
-response sequence for success or error.
-
+"sourceX", "sourceY", "sourceWidth", and "sourceHeight" define the
+rectangle of pixels from the media that will be displayed on the
+screen. The ranges for these values is shown below:
+| Key | Minimum Value | Maximum Value | Default Value |
+|--------------|---------------|-------------------------------|---------------|
+| sourceX | 0 | Media's full width - 1 | 0 |
+| sourceY | 0 | Media's full height - 1 | 0 |
+| sourceWidth | 1 | Media's full width - sourceX | "auto" |
+| sourceHeight | 1 | Media's full height - sourceY | "auto" |
-The "url" value is a
+If any of these values are specified and outside the range, no image
+is displayed, and the cursor does not move. "sourceWidth" and
+"sourceHeight" can be "auto", which means use the maximum available
+width/height (given sourceX/sourceY) from the media's inherent
+dimensions.
* Pe - a non-negative integer error code.
-* The {data} is a set of key-value pairs (each pair separated by
+* The {args} is a set of key-value pairs (each pair separated by
semicolon (';')).
* A key can be any alpha-numeric ASCII string ('0' - '9', 'A' - 'Z',
colon, or semicolon ('!' - '9', '<' - '~').
+
The Pe error codes are defined as:
-| Value | Meaning | {data} containts |
+| Value | Meaning | {args} containts |
|-------|------------------------------------|--------------------------|
| 0 | No error occurred, i.e. success | nothing |
-| 1 | Unsupported "type" | "type" value that was incorrect |
+| 1 | Unsupported "type" | "type" value that was incorrect |
| 2 | Invalid value - no media displayed | "key" that was incorrect |
| 3 | Unsupported key - media displayed | "key" that unsupported |
| 4 | Insufficient memory | nothing |
| 5 | Other error - no media displayed | nothing |
| 6 | Other - media displayed | nothing |
| 7 | Conflicting keys - no media displayed | nothing |
+| 8 | RESERVED FOR FUTURE USE | RESERVED FOR FUTURE USE |
Additional Pe error codes may be returned; any Pe value except 0, 3,
and 6 must mean that the media was not displayed, and the cursor was
Cached Multimedia - Cache/Memory Management
-------------------------------------------
+The terminal manages a cache of multimedia data on behalf of one or
+more applications. Applications request media be stored in the cache,
+and if successful the terminal provides an identification number that
+applications must use to request display from the cache to the screen.
+The amount of memory and retention/eviction strategy for the cache is
+wholly managed by the terminal, with the following restrictions:
+* The terminal may not remove items from the cache that have any
+ portion being actively displayed on the primary or alternate
+ screens.
+* The terminal must respond to every CMCACHE command with a new unique
+ ID.
-Cached Multimedia - Scrollback
-------------------------------
+The scrollback buffer is permitted, and recommended, to contain only a
+few (or zero) multimedia images. Terminals should consider retaining
+only the last 2-5 screens' worth of pixel data in the scrollback
+buffer.
| Sequence | Command | Description |
|--------------------------------------|-----------|-------------------------|
-| OSC 1 3 4 0 ; F i l e = {data} BEL | CMCACHE | Display media at (x, y) |
-| OSC 1 3 4 1 ; Pi ; {data} ST | CMDISPLAY | Display media at (x, y) |
-| OSC 1 3 4 2 ; Pi ; Pe ; {data} ST | CMCRESP | Terminal response to CMCACHE |
-| OSC 1 3 4 3 ; Pi ; Pe ; {data} ST | CMDRESP | Terminal response to CMDISPLAY |
+| CSI ? 3 0 0 0 h | DECSET 3000 | Enable SCRCHANGE notification |
+| CSI ? 3 0 0 0 l | DECRST 3000 | Disable SCRCHANGE notification |
+| OSC 1 3 4 0 ; F i l e = {args} : {data} BEL | CMCACHE | Display media at (x, y) |
+| OSC 1 3 4 1 ; Pi ; {args} ST | CMDISPLAY | Display media at (x, y) |
+| OSC 1 3 4 2 ; Pi ; Pe ; {args} ST | CMCRESP | Terminal response to CMCACHE |
+| OSC 1 3 4 3 ; Pi ; Pe ; {args} ST | CMDRESP | Terminal response to CMDISPLAY |
+
+If SCRCHANGE is set/enabled, then the terminal will send the "CSI 6 ;
+cellHeight ; cellWidth t" when the font size has changed, and "CSI 8 ;
+rows ; columns t" when the number of rows/columns on the screen
+changes.
+
Cached Multimedia - CMCACHE
For the CMCACHE command:
-* The {data} is a set of key-value pairs (each pair separated by
- semicolon (';')).
+* The {args} is a set of key-value pairs (each pair separated by
+ semicolon (';')), followed by a colon (':'), followed by a base-64
+ encoded string ({data}).
* A key can be any alpha-numeric ASCII string ('0' - '9', 'A' - 'Z',
'a' - 'z').
* A value is any printable ASCII string not containing whitespace,
colon, or semicolon ('!' - '9', '<' - '~').
+
+
The keys for the key-value pairs that must be supported by the
terminal are listed below:
| url | "" | If set, a location containing the media data |
+
The "type" value is a mime-type string describing the format of the
base64-encoded binary data. The terminal must support at mimunum these
mime-types:
+The "url" value is a RFC-XXXX defined Universal Resource Located,
+encoded in RFC-XXXX form as a printable ASCII string not containing:
+whitespace, colon (':'), semicolon (';'), or equals ('=').
+
+A terminal is not required to support any URLs.
+
+
+
Cached Multimedia - CMDISPLAY
-----------------------------
* Pi - a non-negative integer media ID that was returned by a CMCRESP
response to a previous CMCACHE command.
-* The {data} is a set of key-value pairs (each pair separated by
+* The {args} is a set of key-value pairs (each pair separated by
semicolon (';')), followed by a colon (':'), followed by a base-64
encoded string.
| height | 1 | number of Cells or pixels high to display in |
| scale | "none" | scale/zoom option, see below |
| align | "nw" | align image to edge option, see below |
+| sourceX | 0 | Media source X position to display |
+| sourceY | 0 | Media source Y position to display |
+| sourceWidth | "auto" | Media width in pixels to display |
+| sourceHeight | "auto" | Media height in pixels to display |
A terminal may support additional keys. If a key is specified but not
supported by the terminal, then it is ignored without error.
+"sourceX", "sourceY", "sourceWidth", and "sourceHeight" define the
+rectangle of pixels from the media that will be displayed on the
+screen. The ranges for these values is shown below:
+
+| Key | Minimum Value | Maximum Value | Default Value |
+|--------------|---------------|-------------------------------|---------------|
+| sourceX | 0 | Media's full width - 1 | 0 |
+| sourceY | 0 | Media's full height - 1 | 0 |
+| sourceWidth | 1 | Media's full width - sourceX | "auto" |
+| sourceHeight | 1 | Media's full height - sourceY | "auto" |
+
+If any of these values are specified and outside the range, no image
+is displayed, and the cursor does not move. "sourceWidth" and
+"sourceHeight" can be "auto", which means use the maximum available
+width/height (given sourceX/sourceY) from the media's inherent
+dimensions.
+
+
+
Cached Multimedia - Error Handling
----------------------------------
* Pe - a non-negative integer error code.
-* The {data} is a set of key-value pairs (each pair separated by
+* The {args} is a set of key-value pairs (each pair separated by
semicolon (';')).
* A key can be any alpha-numeric ASCII string ('0' - '9', 'A' - 'Z',
colon, or semicolon ('!' - '9', '<' - '~').
+
The Pe error codes are defined as:
-| Value | Meaning | {data} containts |
-|-------|------------------------------------|--------------------------|
-| 0 | No error occurred, i.e. success | nothing |
-| 1 | Unsupported "type" | "type" value that was incorrect |
-| 2 | Invalid value - no media stored | "key" that was incorrect |
-| 3 | Unsupported key - media stored | "key" that unsupported |
-| 4 | Insufficient memory - no media stored | nothing |
-| 5 | Other error - no media stored | nothing |
-| 6 | Other - media stored | nothing |
-| 7 | Conflicting keys - no media stored | nothing |
+| Value | Meaning | {args} containts |
+|-------|----------------------------------------|--------------------------|
+| 0 | No error occurred, i.e. success | nothing |
+| 1 | Unsupported "type" | "type" value that was incorrect |
+| 2 | Invalid value - no media stored | "key" that was incorrect |
+| 3 | Unsupported key - media stored | "key" that unsupported |
+| 4 | Insufficient memory - no media stored | nothing |
+| 5 | Other error - no media stored | nothing |
+| 6 | Other - media stored | nothing |
+| 7 | Conflicting keys - no media stored | nothing |
+| 8 | RESERVED FOR FUTURE USE | RESERVED FOR FUTURE USE |
Additional Pe error codes may be returned; any Pe value except 0, 3,
and 6 must mean that the media was not stored in the cache.
* Pe - a non-negative integer error code.
-* The {data} is a set of key-value pairs (each pair separated by
+* The {args} is a set of key-value pairs (each pair separated by
semicolon (';')).
* A key can be any alpha-numeric ASCII string ('0' - '9', 'A' - 'Z',
colon, or semicolon ('!' - '9', '<' - '~').
+
The Pe error codes are defined as:
-| Value | Meaning | {data} containts |
-|-------|-------------------------------------|--------------------------|
-| 0 | No error occurred, i.e. success | nothing |
-| 1 | RESERVED FOR FUTURE USE | RESERVED FOR FUTURE USE |
+| Value | Meaning | {args} containts |
+|-------|----------------------------------------|--------------------------|
+| 0 | No error occurred, i.e. success | nothing |
+| 1 | RESERVED FOR FUTURE USE | RESERVED FOR FUTURE USE |
| 2 | Invalid value - no media displayed | "key" that was incorrect |
| 3 | Unsupported key - media displayed | "key" that unsupported |
| 4 | Insufficient memory - no media displayed | nothing |
| 5 | Other error - no media displayed | nothing |
| 6 | Other - media displayed | nothing |
+| 7 | RESERVED FOR FUTURE USE | RESERVED FOR FUTURE USE |
+| 8 | Media was evicted - no media displayed | nothing |
Additional Pe error codes may be returned; any Pe value except 0, 3,
and 6 must mean that the media was not displayed.
git://git.nikiroo.be / fanfix-jexer.git / commitdiff