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- Short: Personal 68K Blit Libraries v. 2.0
- Uploader: info@cloanto.com (Cloanto)
- Author: info@cloanto.com (Cloanto)
- Type: biz/cloan
- Distribution: Only Cloanto, Aminet and Aminet CD-ROM
-
-
- CLOANTO SOFTWARE UPDATE
-
-
- THIS ARCHIVE CONTAINS THE LATEST VERSION OF THE FOLLOWING LIBRARIES:
-
- - personal_68000_blit.library
- - personal_68020_blit.library
-
-
- PROGRAMS USING THE LIBRARIES:
-
- - Personal Paint version 7.0 and higher
- - ColorType version 3.1 and higher
-
-
- INSTALLATION DIRECTORY:
-
- - Default : "PPaint:libs", "ColorType:libs"
- - Optionally: "LIBS:"
- (software checks both paths and uses the newer library if two are found)
-
-
- ENVIRONMENT VARIABLES:
-
- - PBlit_ChipMem (Yes/No/Auto)
-
-
- NEW FEATURES:
-
- These libraries use the 68K CPU to emulate a 32-bit blitter, whereas the
- previous libraries, like the original Amiga, worked with a 16-bit blitter
- model. This new release is about twice as fast as the previous libraries.
-
- Additional functionality has been integrated in these libraries to
- better support future programs.
-
- The 68020 library is slightly faster than the 68000 version. To use the
- 68020 version, please edit the library name in the "Startup_1.set" program
- settings file. In no case should the library files be renamed. It is
- sufficient to install one of the two 68K libraries.
-
- These libraries are mainly useful on blitterless systems such as the DraCo,
- or on systems where the original blitter cannot access the image bitmaps
- (for example, because they are in Fast RAM).
-
- In theory, when using a blitter emulation library rather than the
- "personal_agnus_blit.library", Cloanto programs like Personal Paint
- can work without Chip RAM. However, Personal Paint also uses the
- system "graphics.library", which for most functions (e.g. Flood(),
- AreaDraw(), etc.) can only access bitmaps in Chip RAM (not on Fast RAM). As
- these new 68K blitting libraries are being released, it appears likely that
- both CyberGraphX and Picasso software will soon have replaced all Amiga
- system functions to work on Fast RAM. The Cloanto "PBlit_ChipMem"
- environment variable, originally designed for development and testing
- purposes, can then be used to force Personal Paint not to use Chip RAM when
- these new system replacements are used. However, if the system
- graphics.library does not fully support bitmaps in Fast RAM, it is likely to
- crash as soon as a system function requiring Fast RAM is used by Personal
- Paint.
-
- The libraries included here use and instruct Personal Paint to use (or not
- to use) Chip RAM as indicated by the "PBlit_ChipMem" environment variable.
- If the variable is not set, the choice is made automatically by the library
- based on simple tests on the host system.
-
-
- OTHER NOTES:
-
- Your feedback is very appreciated: <support@cloanto.com>.
-
- For additional technical and legal information on the files, please refer to
- the documentation included with the original (commercial) distribution. In
- particular, all files are Copyright © 1996 Cloanto Italia srl.
-