OS2DD301 - OS/2 PM Video Device Driver

From OS2World.Com Wiki
Jump to navigation Jump to search

OS/2 1.x/2.x Presentation Manager Video device driver.

Objective

To expedite Independent Hardware Vendors (IHV) support of OS/2 1.x/2.x by writing Presentation Manager Device Drivers (PM DD) to support various Video Display boards.

This class will cover the core PM DD modules used to interface OS/2 applications to the display; this will include support for WIN and GPI calls. Graphics engine interfacing will be covered in detail.

Target audience

IBM or IHV programmers who code device drivers for...

a. Display cards
b. Bus type may be: ISA, EISA, VLB, or MCA.

Attendee prerequisites

a. Programming expertise: C, MASM
b. Intimate knowledge of IHV hardware & programming protocol
c. Other device drivers for IHV hardware (DOS, ROM BIOS code, utilities)
d. Purchased development software (OS/2 2.1, DDK, MSC 6.0, MASM 5.1)

Length

  • 5 days

Outline

  • OS/2 Structure
    • Device Driver types
      • PM Device Drivers
  • Block diagram (PM Driver modules)
    • Logic, Data flow
  • Device Context
    • Types, data types, stack usage
  • Dynamic Link Library functions
    • Imported, exported
  • Presentation Driver Interface
  • Protocol
    • Return codes
    • Allocating memory
    • Error Strategy
    • Protection implementation
    • Exit List processing
    • Interrupts (^C)
  • Development topics
    • Transform matrix values
    • Bounds computations
    • Clipping
    • Coordinate values
    • Correlation
    • Drawing to display drivers
  • DAK contents
    • Organization, Build tree
    • Tools
      • Display test tool (DTT)
        • Test case DLLs
  • OS/2 2.1
    • 32 bit SVGA Display Driver
      • IBMVGA32.DLL (device independent)
      • IBMDEV32.DLL (device dependent)
      • DSPRES.DLL (resources)
      • Background mix options
      • Palette management
    • DSPINSTL
      • Configuration file interpreter
        • Command set

Labs:Developing OS/2 PM Display DD