Emulation/ppsspp
1
0
Fork 0
mirror of https://github.com/hrydgard/ppsspp.git synced 2025-04-02 11:01:50 -04:00
Code Issues Projects Releases Packages Wiki Activity

Try to more correctly handle stencil when blending.

Browse source 
Although, not accurate, this will attempt to KEEP and etc.
This commit is contained in:
Unknown W. Brackets 2013-12-07 01:58:33 -08:00
parent f4890288ce
commit 113f9795f3
1 changed files with 22 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
GPU/GLES/StateMapping.cpp
View file

@ -249,7 +249,28 @@ void TransformDrawEngine::ApplyDrawState(int prim) {
// do any blending in the alpha channel as that doesn't seem to happen on PSP. So lacking a better option,
// the only value we can set alpha to here without multipass and dual source alpha is zero (by setting
// the factors to zero). So let's do that.
glstate.blendFuncSeparate.set(glBlendFuncA, glBlendFuncB, GL_ZERO, GL_ZERO);
if (gstate.isStencilTestEnabled()) {
switch (ReplaceAlphaWithStencilType()) {
case STENCIL_VALUE_KEEP:
glstate.blendFuncSeparate.set(glBlendFuncA, glBlendFuncB, GL_ZERO, GL_ONE);
break;
case STENCIL_VALUE_ONE:
// This won't give one but it's our best shot...
glstate.blendFuncSeparate.set(glBlendFuncA, glBlendFuncB, GL_ONE, GL_ONE);
break;
case STENCIL_VALUE_ZERO:
glstate.blendFuncSeparate.set(glBlendFuncA, glBlendFuncB, GL_ZERO, GL_ZERO);
break;
// For now, let's err at zero.
case STENCIL_VALUE_UNIFORM:
case STENCIL_VALUE_UNKNOWN:
glstate.blendFuncSeparate.set(glBlendFuncA, glBlendFuncB, GL_ZERO, GL_ZERO);
break;
}
} else {
// Retain the existing value when stencil testing is off.
glstate.blendFuncSeparate.set(glBlendFuncA, glBlendFuncB, GL_ZERO, GL_ONE);
}
// Don't report on Android device (why?)
#if !defined(USING_GLES2)