Name | Synopsis | Description | Parameters | Return Values | Attributes | See Also
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_GraphicsDrawRectangle_8(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 w, mlib_s32 h, mlib_s32 c);
mlib_status mlib_GraphicsDrawRectangle_32(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 w, mlib_s32 h, mlib_s32 c);
mlib_status mlib_GraphicsDrawRectangle_X_8(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 w, mlib_s32 h, mlib_s32 c, mlib_s32 c2);
mlib_status mlib_GraphicsDrawRectangle_X_32(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 w, mlib_s32 h, mlib_s32 c, mlib_s32 c2);
mlib_status mlib_GraphicsDrawRectangle_B_8(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 w, mlib_s32 h, mlib_s32 c, mlib_s32 a);
mlib_status mlib_GraphicsDrawRectangle_B_32(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 w, mlib_s32 h, mlib_s32 c, mlib_s32 a);
Each of the mlib_GraphicsDrawRectangle_*() functions draws a rectangle with the upper-left corner at (x, y), width w, and height h.
Each of the mlib_GraphicsDrawRectangle_X_*() functions draws a rectangle in Xor mode as follows:
data[x,y] ^= c ^ c2
Each of the mlib_GraphicsDrawRectangle_B_*() functions draws a rectangle with alpha blending as follows:
data[x,y] = (data[x,y] * (255 - a) + c * a) / 255
Each of the functions takes some of the following arguments:
Pointer to the image into which the function is drawing.
X coordinate of the upper-left corner of the rectangle.
Y coordinate of the upper-left corner of the rectangle.
Width of the rectangle.
Height of the rectangle.
Color used in the drawing.
Alternation color.
Alpha value for blending. 0 ≤ a ≤ 255.
Each of the functions returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE |
ATTRIBUTE VALUE |
---|---|
Interface Stability |
Committed |
MT-Level |
MT-Safe |
Name | Synopsis | Description | Parameters | Return Values | Attributes | See Also