Functions


ImageCopy
get_key
MorpheusImageCopy

ImageCopy

void ImageCopy(
    SpriteImage *si1,
    SpriteImage *si2,
    int sx,
    int sy,
    int x,
    int y,
    int cx,
    int cy,
    int flags,
    long key );

SpriteCore's basic blitter. Copies one SpriteImage onto another with optional color-key compositing and other features. If any of the coordinates specified exceed the bounds of the source or destination images, clipping is automatically performed.

Parameter Descriptions
si1
Source image.
si2
Destination image.
sx
Coordinate of left edge of source rectangle to copy.
sy
Coordinate of top edge of source rectangle to copy.
x
Coordinate of left edge of copied rectangle in destination image.
y
Coordinate of top edge of copied rectangle in destination image.
cx
Width of rectangle.
cy
Height of rectangle.
flags
Special flags which affect the operation.
key
Key color to use in compositing.

MorpheusImageCopy

void MorpheusImageCopy(
    SpriteImage *si1,
    SpriteImage *si2,
    int sx,
    int sy,
    int cx,
    int cy,
    s_matp mat,
    int flags,
    long key );

SpriteCore's matrix-transform blitter. Copies one SpriteImage onto another with optional color-key compositing, transforming the source image according to the given matrix. Clipping is naive, and so very very slow if you scale the image to huge size (or have a huge image to begin with). I hope to change this in the near future.

Parameter Descriptions
si1
Source image.
si2
Destination image.
sx
Coordinate of left edge of source rectangle to copy.
sy
Coordinate of top edge of source rectangle to copy.
cx
Width of rectangle.
cy
Height of rectangle.
mat
Pointer to transformation matrix.
flags
Special flags which affect the operation.
key
Key color to use in compositing.

get_key

long get_key(
    SpriteImage *si );

Gets the key color of the upper-left-hand corner of a SpriteImage and stores it in a long int value, regardless of depth or endianness.

Parameter Descriptions
si
The SpriteImage whose key color we want

© 2005 Jeffrey T. Read (Last Updated 7/27/2005)