FsCompositeOperation
The FsCompositeOperation represents a composite operation used to combined a source pixel and a destination pixel into a final pixel.
Syntax
struct FsCompositeOperationState {
int srcRGB;
int dstRGB;
int srcAlpha;
int dstAlpha;
};
Members
| Member | Description |
|---|---|
srcRGB |
RGB source pixel, one of the constants listed below. |
dstRGB |
RGB destination pixel, one of the constants listed below. |
srcAlpha |
Alpha source pixel, one of the constants listed below. |
dstAlpha |
Alpha destination pixel, one of the constants listed below. |
Remarks
The members of the struct can take one of the following blend factor constants:
| Constant |
RGB Blend Factors (Sr, Sg, Sb) or (Dr, Dg, Db) |
Alpha Blend Factor (Sa) or (Da) |
|---|---|---|
FS_ZERO |
(0, 0, 0) | 0 |
FS_ONE |
(1, 1, 1) | 1 |
FS_SRC_COLOR |
(Rs, Gs, Bs) | As |
FS_ONE_MINUS_SRC_COLOR |
(1, 1, 1) - (Rs, Gs, Bs) | 1 - As |
FS_DST_COLOR |
(Rd, Gd, Bd) | Ad |
FS_ONE_MINUS_DST_COLOR |
(1, 1, 1) - (Rd, Gd, Bd) | 1 - Ad |
FS_SRC_ALPHA |
(As, As, As) | As |
FS_ONE_MINUS_SRC_ALPHA |
(1, 1, 1) - (As, As, As) | 1 - As |
FS_DST_ALPHA |
(Ad, Ad, Ad) | Ad |
FS_ONE_MINUS_DST_ALPHA |
(1, 1, 1) - (Ad, Ad, Ad) | 1 - Ad |
FS_SRC_ALPHA_SATURATE |
(f, f, f) (*2) | 1 |
See Also