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change blend funcs validity check

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Simplifies the validation of blend functions.
Can allow `SW_SRC_ALPHA_SATURATE` as dst factor, but hey
This commit is contained in:
Bigfoot71 2026-03-17 23:31:58 +01:00
parent f8f1988bd9
commit af67e1144b
1 changed files with 5 additions and 55 deletions
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60
src/external/rlsw.h vendored
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@ -1489,51 +1489,6 @@ static inline bool sw_is_face_valid(int face)
return (face == SW_FRONT || face == SW_BACK);
}
static inline bool sw_is_blend_src_factor_valid(int blend)
{
bool result = false;
switch (blend)
{
case SW_ZERO:
case SW_ONE:
case SW_SRC_COLOR:
case SW_ONE_MINUS_SRC_COLOR:
case SW_SRC_ALPHA:
case SW_ONE_MINUS_SRC_ALPHA:
case SW_DST_ALPHA:
case SW_ONE_MINUS_DST_ALPHA:
case SW_DST_COLOR:
case SW_ONE_MINUS_DST_COLOR:
case SW_SRC_ALPHA_SATURATE: result = true; break;
default: break;
}
return result;
}
static inline bool sw_is_blend_dst_factor_valid(int blend)
{
bool result = false;
switch (blend)
{
case SW_ZERO:
case SW_ONE:
case SW_SRC_COLOR:
case SW_ONE_MINUS_SRC_COLOR:
case SW_SRC_ALPHA:
case SW_ONE_MINUS_SRC_ALPHA:
case SW_DST_ALPHA:
case SW_ONE_MINUS_DST_ALPHA:
case SW_DST_COLOR:
case SW_ONE_MINUS_DST_COLOR: result = true; break;
default: break;
}
return result;
}
static inline bool sw_is_ready_to_render(void)
{
return (swCheckFramebufferStatus() == SW_FRAMEBUFFER_COMPLETE);
@ -4158,19 +4113,14 @@ void swClear(uint32_t bitmask)
void swBlendFunc(SWfactor sfactor, SWfactor dfactor)
{
if (!sw_is_blend_src_factor_valid(sfactor) ||
!sw_is_blend_dst_factor_valid(dfactor))
{
RLSW.errCode = SW_INVALID_ENUM;
return;
}
int sIndex = sw_blend_factor_index(sfactor);
if (sIndex < 0) { RLSW.errCode = SW_INVALID_ENUM; return; }
int dIndex = sw_blend_factor_index(dfactor);
if (dIndex < 0) { RLSW.errCode = SW_INVALID_ENUM; return; }
RLSW.srcFactor = sfactor;
RLSW.dstFactor = dfactor;
int sIndex = sw_blend_factor_index(sfactor);
int dIndex = sw_blend_factor_index(dfactor);
RLSW.blendFunc = SW_BLEND_TABLE[sIndex][dIndex];
}