function

slColOffsetOn

Screen settings affected by color offset values

Form

    #include "sgl.h"

    Uint16 mode;

    void slColOffsetOn (mode);

argument

    Uint16 mode-Screens affected by color offset values.

Number of returns

    void --Nothing is returned.

function

    Sets the screen that is affected by the color offset value.

    In mode,
    NBG0ON , NBG1ON , NBG2ON , NBG3ON , RBG0ON , LNCLON , SPRON , OFF
    Is entered.

    If you want to set the drawing settings for multiple scroll planes at the same time, specify the mode of each plane by connecting them with "|".

Example

    Multiply NBG1 and NBG3 by color offset.

    slColOffsetOn ( NBG1ON | NBG3ON );

    Disable the color offset for all BGs.

    slColOffsetOn ( OFF );

caution

    Specifying OFF for the argument mode turns off the color offset for all faces.

reference

slColOffsetOff	slColOffsetAUse	slColOffsetBUse	slColOffsetA
slColOffsetB	slColOffsetScrn	VDP2_CLOFEN

function

slColOffsetOff

Screen settings that are not affected by the color offset value

Form

    #include "sgl.h"

    Uint16 mode;

    void slColOffsetOff (mode);

argument

    Uint16 mode-Screen that is not affected by the color offset value.

Number of returns

    void --Nothing is returned.

function

    Set the screen to be unaffected by the color offset value.

    In mode,
    NBG0ON , NBG1ON , NBG2ON , NBG3ON , RBG0ON , LNCLON , SPRON
    Is entered.

    If you want to set the drawing settings for multiple scroll planes at the same time, set the mode of each plane to "|".
    Please specify by connecting with.

Example

    slColOffsetOff ( NBG2ON | NBG3ON );

caution

    Execute slColOffsetOn ( OFF ) to disable all faces.

reference

slColOffsetOn	slColOffsetAUse	slColOffsetBUse	slColOffsetA
slColOffsetB	slColOffsetScrn

function

slColOffsetAUse

Set the screen affected by the color offset value

Form

    #include "sgl.h"

    Uint16 mode;

    void slColOffsetAUse (mode);

argument

    Uint16 mode-Screens affected by color offset values.

Number of returns

    void --Nothing is returned.

function

    Sets the screen affected by the color offset value set by the slColOffsetA function.

    In mode,
        NBG0ON , NBG1ON , NBG2ON , NBG3ON , RBG0ON , LNCLON , SPRON
    Is entered.

    If you want to set the drawing settings for multiple scroll planes at the same time, set the mode of each plane to "|".
    Please specify by connecting with.

Example

    slColOffsetA (35, 23, 12);
                ::
    slColOffsetAUse ( NBG0ON );

caution

    When the slColOffsetAUse and slColOffsetBUse functions are executed, the slColOffsetOn function is also executed at the same time.
    The slColOffsetOn function does not need to be executed by the user.

reference

slColOffsetOn	slColOffsetOff	slColOffsetBUse	slColOffsetA
slColOffsetB	slColOffsetScrn	VDP2_CLOFEN

function

slColOffsetBUse

Set the screen affected by the color offset value

Form

    #include "sgl.h"

    Uint16 mode;

    void slColOffsetBUse (mode);

argument

    Uint16 mode-Screens affected by color offset values.

Number of returns

    void --Nothing is returned.

function

    Sets the screen affected by the color offset value set by the slColOffsetB function.

    In mode,
    NBG0ON , NBG1ON , NBG2ON , NBG3ON , RBG0ON , LNCLON , SPRON
    Is entered.

    If you want to set the drawing settings for multiple scroll planes at the same time, set the mode of each plane to "|".
    Please specify by connecting with.

Example

    slColOffsetB (35, 23, 12);
                ::
    slColOffsetBUse ( NBG0ON );

reference

slColOffsetOn	slColOffsetOff	slColOffsetAUse	slColOffsetA
slColOffsetB	slColOffsetScrn	VDP2_CLOFEN

function

slColOffsetA

function

slColOffsetB

Set the offset value of color offset A and B

Form

    #include "sgl.h"

    Sint16 r, g, b;

    void slColOffsetA (r, g, b);
    void slColOffsetB (r, g, b);

argument

    Sint16 r --Offset value of red.

    Sint16 g --Offset value of green.

    Sint16 b --blue offset value.

Number of returns

    void --Nothing is returned.

function

    Color offset Set the offset value used for A and B.

    Only the lower 9 bits are used for the data used in r, g, and b.

Example

    slColOffsetA (35, 23, 12);
                ::
    slColOffsetAUse ( NBG0ON );

reference

slColOffsetOn	slColOffsetOff	slColOffsetAUse	slColOffsetBUse
slColOffsetScrn	VDP2_COAR	VDP2_COAG	VDP2_COAB
VDP2_COBR	VDP2_COBG	VDP2_COBB

function

slColOffsetScrn

Screen settings affected by color offset

Form

    #include "sgl.h"

    Uint16 mode_a;
    Uint16 mode_b;

    void slColOffsetScrn (mode_a, mode_b);

argument

    Uint16 mode_a-Screen (A) affected by color offset (see below).

    Uint16 mode_b-Screen (B) affected by color offset (see below).

Number of returns

    void --Nothing is returned.

function

    Specify the screens affected by the color offset separately for the face for parameter A and the face for parameter B.

    Both mode_a and mode_b contain the following predefined macros.

          NBG0ON | NBG0OFF
          NBG1ON | NBG1OFF
          NBG2ON | NBG2OFF
          NBG3ON | NBG3OFF
          RBG0ON | RBG0OFF

Example

    slColOffsetScrn ( NBG1ON | NBG2ON , NBG0ON | NBG3ON );   

caution

    This function is a combination of slColOffsetOn () and slColOffsetBUse ().

reference

VDP2_CLOFEN

VDP2_CLOFSL