??? 06/26/06 10:19 Read: times |
#119089 - More on Lookup tables Responding to: ???'s previous message |
Sorry delay in getting back. Yes, I used bitblt as a useful function in delphi for fast writing of bitmaps, so aware of its use, but I did a search based on suggested bitblt, and came up with no info about lookup table.
However here are another couple of useful urls: http://www.picmodules.com/acatalog/...loads.html and also on ZILog site there is a .com convertor which does not require much work to create a graphic lookup table: http://www.zilog.com/docs/z8en...an0196.pdf Converting the BMP Image to HEX Value To display a given BMP image on a graphic LCD, it is necessary to convert the BMP image to a stream of HEX values. A utility file, Z_bmptohex.exe, that enables the user to convert the BMP image to a stream of HEX values, is provided in the source code files associated with this Application Note. This is a command line utility that reads data from the BMP file. This removes the BMP header (which is 62 bytes) and stores the data into a two dimensional array of constant characters. This utility also creates a file, filename_bmp.inc and stores the hex data in that file. The Z_bmptohex.exe file supports the following types of command line arguments. 1. Z_bmp_to_hex <filename.ext> In this case, only filename.bmp is entered as the command line argument. The output file is created in the working directory itself. Al. |
Topic | Author | Date |
Lookup table for graphics display | 01/01/70 00:00 | |
BitBlt | 01/01/70 00:00 | |
Bitblt or comparable not available | 01/01/70 00:00 | |
Not available? | 01/01/70 00:00 | |
More on Lookup tables | 01/01/70 00:00 | |
Some useful urls (lcd image header file) | 01/01/70 00:00 | |
Use Excel![]() | 01/01/70 00:00 |