blob: 2485c34d418300f11efbc305c1f88aea0f47b354 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
#ifndef U_BLEND_H
#define U_BLEND_H
#include "pipe/p_state.h"
/**
* When faking RGBX render target formats with RGBA ones, the blender is still
* supposed to treat the destination's alpha channel as 1 instead of the
* garbage that's there. Return a blend factor that will take that into
* account.
*/
static INLINE int
util_blend_dst_alpha_to_one(int factor)
{
switch (factor) {
case PIPE_BLENDFACTOR_DST_ALPHA:
return PIPE_BLENDFACTOR_ONE;
case PIPE_BLENDFACTOR_INV_DST_ALPHA:
return PIPE_BLENDFACTOR_ZERO;
default:
return factor;
}
}
#endif /* U_BLEND_H */
|
