DataShow GRA - Revision history

Sembiance: /* Software */

2023-12-29T02:50:50Z

‎Software

Sembiance: /* Sample files */

2023-12-29T02:50:35Z

‎Sample files

Jsummers: /* Software */

2023-01-04T16:49:50Z

‎Software

Jsummers at 16:40, 4 January 2023

2023-01-04T16:40:54Z

Jsummers: Created page with "{{FormatInfo |formattype=electronic |subcat=Graphics |extensions={{ext|gra}} |released=≤1991 }} '''DataShow GRA''' is a raster graphics format associated with DataShow. Data..."

2023-01-04T16:39:08Z

Created page with "{{FormatInfo |formattype=electronic |subcat=Graphics |extensions={{ext|gra}} |released=≤1991 }} '''DataShow GRA''' is a raster graphics format associated with DataShow. Data..."

New page

{{FormatInfo
|formattype=electronic
|subcat=Graphics
|extensions={{ext|gra}}
|released=≤1991
}}
'''DataShow GRA''' is a raster graphics format associated with DataShow. DataShow is a presentation and multi-purpose graphics application for DOS, developed by René Michael Plambek.

GRA is a somewhat crude non-compressed format, apparently for a full-screen image.

== Discussion ==
Here's a way to view a GRA file in DataShow Pro v1.4A (assumes you have a way to run DOS software):
* Figure out what mode the GRA file uses (see the Identification section of this page).
* Put the file in the same directory as SHOW.EXE (not required, but simpler).
* Run SHOW.EXE.
* At the main menu, press F9 (Setup).
* Use up/down arrow keys to move the cursor to the "Default Graphics mode" item.
* Use "+"/"-" keys to select the correct graphics mode, then press F10.
* At the main menu, press F4 (Draw).
* At the Draw Center menu, press F9 (Setup).
* Use up/down arrow keys to move the cursor to the "Graphics type" item.
* Use "+"/"-" keys to select "GRA" format, then press F10.
* Press F2 (Files).
* Use arrow keys to select "Load file", and press Enter.
* Type the filename, and press Enter. Dismiss the message.
* At the Draw Center menu, press F4 ("Draw"). The image should be displayed. Press F10 when done.

== Identification ==
A GRA file can perhaps be identified using the file size, and the first 3 or 4 bytes of the file. Note that the first two bytes are the image width, minus 1.

''[The information in this table was derived from minimal testing, and may be incomplete.]''

{| class="wikitable"
! Mode !! File size !! First 4 bytes
|-
|CGA - 320x200 || 16006 || <code>3f 01 c7 00</code>
|-
|EGA1 - 640x200x16 || 64006 || <code>7f 02 c7 00</code>
|-
|EGA2 - 640x350x16 || 112012 || <code>7f 02 c8 00</code>
|-
|VGA1 - 640x480x16 || 153618 || <code>7f 02 c8 00</code>
|-
|VGA2 - 320x200x256 || 64006 || <code>3f 01 c7 00</code>
|-
|SVGA1 - 640x400x256 || 256024 || <code>7f 02 64 00</code>
|-
|SVGA2 - 640x480x256 || 307230 || <code>7f 02 64 00</code>
|-
|SVGA3 - 800x600x16 || 240024 || <code>1f 03 96 00</code>
|-
|SVGA4 - 800x600x256 || 480048 || <code>1f 03 4b 00</code>
|-
|SVGA5 - 1024x768x16 || 393258 || <code>ff 03 7d 00</code>
|-
|SVGA6 - 1024x768x256 || 786510 || <code>ff 03 3c 00</code>
|}

== Software ==
* {{CdTextfiles|daytime/003a/show15.zip|DataShow v1.5B}} (1991-06)
* {{CdTextfiles|nightowl/nopv07/013A/SHOW25A.ZIP|DataShow v2.5A}} (1992-03)
* {{CdTextfiles|cream/cream05/screen/show43a.zip|DataShow v4.3A}} (1994-06)
* {{CdTextfiles|cream/cream06/screen/show50a.zip|DataShow v5.0A}} (1994-11)
* {{CdTextfiles|cream/cream09/screen/show70.zip|DataShow v7.0A}} (1996-03)
* {{CdTextfiles|cream/cream11/cream11-02/extra_2/dshow10.zip|DataShow, Pro Version 1.0A}} (1995-10)
* {{CdTextfiles|simtel/simtel9703/disk1/DISC1/MMEDIA/DSHOW14A.ZIP|DataShow, Pro Version 1.4A}} (1996-03)

== Sample files ==
* {{CdTextfiles|daytime/003a/show15.zip|show15.zip}} → PROMOTE1.GRA (CGA mode)
* {{CdTextfiles|cream/cream09/screen/show70.zip|show70.zip}} → PROMOTE1.GRA (EGA1 mode)

← Older revision		Revision as of 02:50, 29 December 2023
Line 71:		Line 71:
	* {{CdTextfiles\|daytime/003a/show15.zip\|show15.zip}} → PROMOTE1.GRA (CGA mode)		* {{CdTextfiles\|daytime/003a/show15.zip\|show15.zip}} → PROMOTE1.GRA (CGA mode)
	* {{CdTextfiles\|cream/cream09/screen/show70.zip\|show70.zip}} → PROMOTE1.GRA (EGA1 mode)		* {{CdTextfiles\|cream/cream09/screen/show70.zip\|show70.zip}} → PROMOTE1.GRA (EGA1 mode)
		+	* {{DexvertSamples\|image/dataShowGraphic}}

← Older revision		Revision as of 16:40, 4 January 2023
Line 8:		Line 8:

	GRA is a somewhat crude non-compressed format, apparently for a full-screen image.		GRA is a somewhat crude non-compressed format, apparently for a full-screen image.
		+
		+	See also [[DataShow Sprite]].

	== Discussion ==		== Discussion ==

@@ Line 67: / Line 67: @@
 * {{CdTextfiles|cream/cream11/cream11-02/extra_2/dshow10.zip|DataShow, Pro Version 1.0A}} (1995-10)
 * {{CdTextfiles|simtel/simtel9703/disk1/DISC1/MMEDIA/DSHOW14A.ZIP|DataShow, Pro Version 1.4A}} (1996-03)
 == Sample files ==

@@ Line 64: / Line 64: @@
 * {{CdTextfiles|cream/cream05/screen/show43a.zip|DataShow v4.3A}} (1994-06)
 * {{CdTextfiles|cream/cream06/screen/show50a.zip|DataShow v5.0A}} (1994-11)
-* {{CdTextfiles|cream/cream09/screen/show70.zip|DataShow v7.0A}} (1996-03)
+* {{CdTextfiles|cream/cream09/screen/show70.zip|DataShow v7.0A}} (1995-08)
 * {{CdTextfiles|cream/cream11/cream11-02/extra_2/dshow10.zip|DataShow, Pro Version 1.0A}} (1995-10)
 * {{CdTextfiles|simtel/simtel9703/disk1/DISC1/MMEDIA/DSHOW14A.ZIP|DataShow, Pro Version 1.4A}} (1996-03)