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## dioscuri.module.video
Class Video

    java.lang.Object
      dioscuri.module.AbstractModule
          dioscuri.module.ModuleVideo
              dioscuri.module.video.Video

All Implemented Interfaces:
  Addressable, Module, Updateable

    public class Video

extends ModuleVideo

An implementation of a video (VGA) module.

See Also:
  `

  Metadata module ******************************************** general.type : video general.name : General VGA display adapter general.architecture : Von Neumann general.description : Models a simple VGA adapter general.creator : Tessella Support Services, Koninklijke Bibliotheek, Nationaal Archief of the Netherlands general.version : 1.0 general.keywords : VGA, Video Graphics Array, video, graphics, 640, 480 general.relations : Motherboard general.yearOfIntroduction : general.yearOfEnding : general.ancestor : general.successor :

  Notes: - This code is based on Bochs code which has been ported to Java.`

Nested Class Summary
`class` | `Video.DiosJPCVideoConnect`

Nested classes/interfaces inherited from interface dioscuri.interfaces.Module
`Module.Type`

Field Summary
`Video.DiosJPCVideoConnect` | `vidMemConnect`

Fields inherited from class dioscuri.module.AbstractModule
`type`

Constructor Summary
`Video(Emulator owner)` Class constructor

Method Summary
`void` | `acceptComponent(HardwareComponent component)`
`int[]` | `determineScreenSize()` Determine the screen size in pixels
`byte` | `getAttributePaletteRegister(int index)` Returns a byte from attribute palette register at position index
`byte` | `getIOPortByte(int portAddress)`
`byte[]` | `getIOPortDoubleWord(int portAddress)`
`byte[]` | `getIOPortWord(int portAddress)`
`byte` | `getTextSnapshot(int index)` Returns a byte from text snapshot at position index
`int` | `getUpdateInterval()` Get the update interval.
`byte[]` | `getVideoBuffer()` Returns a pointer to the whole video buffer
`byte` | `getVideoBufferByte(int index)` Returns a byte from video buffer at position index
`java.lang.String` | `getVideoBufferCharacters()` Returns all characters (as Unicode) that are currently in buffer
`byte` | `readMode(int address)` Video read mode implementations
`boolean` | `reset()` Reset all parameters of module.
`void` | `setIOPortByte(int portAddress, byte data)`
`void` | `setIOPortDoubleWord(int portAddress, byte[] dataDoubleWord)`
`void` | `setIOPortWord(int portAddress, byte[] dataWord)`
`void` | `setTextSnapshot(int index, byte data)` Stores a byte in text snapshot at position index
`void` | `setUpdateInterval(int interval)` Defines the interval between subsequent updates
`void` | `setVideoBufferByte(int index, byte data)` Stores a byte in video buffer at position index
`void` | `update()` Update the module.
`void` | `writeMode(int address, byte value)` Video write mode implementations

Methods inherited from class dioscuri.module.AbstractModule
`getConnection, getConnections, getDebugMode, getDump, getExpectedConnections, getType, isConnected, setConnection, setDebugMode, start, stop`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface dioscuri.interfaces.Module
`getConnection, getConnections, getDebugMode, getDump, getExpectedConnections, getType, isConnected, setConnection, setDebugMode, start, stop`

Field Detail

### vidMemConnect

    public Video.DiosJPCVideoConnect vidMemConnect

Constructor Detail

### Video

    public Video(Emulator owner)

  Class constructor

  Parameters:
    `owner` -

Method Detail

### reset

    public boolean reset()

  Reset all parameters of module.

  Specified by:
    `reset` in interface `Module`
  Specified by:
    `reset` in class `AbstractModule`
  Returns:
    true iff the AbstractModule was reset properly.
  See Also:
    `AbstractModule`

### getUpdateInterval

    public int getUpdateInterval()

  Get the update interval.

  Returns:
    the update interval
  See Also:
    `Updateable`

### setUpdateInterval

    public void setUpdateInterval(int interval)

  Defines the interval between subsequent updates

  Parameters:
    `interval` - the interval between subsequent updates in ms.
  See Also:
    `Updateable`

### update

    public void update()

  Update the module.

  See Also:
    `Updateable`

### getIOPortByte

    public byte getIOPortByte(int portAddress)
                       throws ModuleException,
                              UnknownPortException,
                              WriteOnlyPortException

  Returns:
  Throws:
    `ModuleException`
    `UnknownPortException`
    `WriteOnlyPortException`
  See Also:
    `Addressable`

### setIOPortByte

    public void setIOPortByte(int portAddress,
                              byte data)
                       throws ModuleException,
                              UnknownPortException

  Throws:
    `ModuleException`
    `UnknownPortException`
  See Also:
    `Addressable`

### getIOPortWord

    public byte[] getIOPortWord(int portAddress)
                         throws ModuleException,
                                UnknownPortException,
                                WriteOnlyPortException

  Returns:
  Throws:
    `ModuleException`
    `UnknownPortException`
    `WriteOnlyPortException`
  See Also:
    `Addressable`

### setIOPortWord

    public void setIOPortWord(int portAddress,
                              byte[] dataWord)
                       throws ModuleException,
                              UnknownPortException

  Throws:
    `ModuleException`
    `UnknownPortException`
  See Also:
    `Addressable`

### getIOPortDoubleWord

    public byte[] getIOPortDoubleWord(int portAddress)
                               throws ModuleException,
                                      UnknownPortException,
                                      WriteOnlyPortException

  Returns:
  Throws:
    `ModuleException`
    `UnknownPortException`
    `WriteOnlyPortException`
  See Also:
    `Addressable`

### setIOPortDoubleWord

    public void setIOPortDoubleWord(int portAddress,
                                    byte[] dataDoubleWord)
                             throws ModuleException,
                                    UnknownPortException

  Throws:
    `ModuleException`
    `UnknownPortException`
  See Also:
    `Addressable`

### getVideoBuffer

    public byte[] getVideoBuffer()

  Returns a pointer to the whole video buffer

  Specified by:
    `getVideoBuffer` in class `ModuleVideo`
  Returns:
    byte[] containing the video buffer
  See Also:
    `ModuleVideo`

### getVideoBufferByte

    public byte getVideoBufferByte(int index)

  Returns a byte from video buffer at position index

  Specified by:
    `getVideoBufferByte` in class `ModuleVideo`
  Returns:
    byte from video buffer
  See Also:
    `ModuleVideo`

### setVideoBufferByte

    public void setVideoBufferByte(int index,
                                   byte data)

  Stores a byte in video buffer at position index

  Specified by:
    `setVideoBufferByte` in class `ModuleVideo`
  See Also:
    `ModuleVideo`

### getVideoBufferCharacters

    public java.lang.String getVideoBufferCharacters()

  Returns all characters (as Unicode) that are currently in buffer

  Specified by:
    `getVideoBufferCharacters` in class `ModuleVideo`
  Returns:
    String containing all characters in the buffer or null when no characters exist
  See Also:
    `ModuleVideo`

### getTextSnapshot

    public byte getTextSnapshot(int index)

  Returns a byte from text snapshot at position index

  Specified by:
    `getTextSnapshot` in class `ModuleVideo`
  Returns:
    byte from textsnapshot
  See Also:
    `ModuleVideo`

### setTextSnapshot

    public void setTextSnapshot(int index,
                                byte data)

  Stores a byte in text snapshot at position index

  Specified by:
    `setTextSnapshot` in class `ModuleVideo`
  See Also:
    `ModuleVideo`

### getAttributePaletteRegister

    public byte getAttributePaletteRegister(int index)

  Returns a byte from attribute palette register at position index

  Specified by:
    `getAttributePaletteRegister` in class `ModuleVideo`
  Returns:
    byte from register
  See Also:
    `ModuleVideo`

### determineScreenSize

    public int[] determineScreenSize()

  Determine the screen size in pixels

  Specified by:
    `determineScreenSize` in class `ModuleVideo`
  Returns:
    integer array containing [height, width] of screen in pixels
  See Also:
    `ModuleVideo`

### readMode

    public byte readMode(int address)

  Video read mode implementations

  Specified by:
    `readMode` in class `ModuleVideo`
  Returns:
    -
  See Also:
    `ModuleVideo`

### writeMode

    public void writeMode(int address,
                          byte value)

  Video write mode implementations

  Specified by:
    `writeMode` in class `ModuleVideo`
  See Also:
    `ModuleVideo`

### acceptComponent

    public void acceptComponent(HardwareComponent component)

  Parameters:
    `component` -

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