mirror of
https://github.com/hrydgard/ppsspp.git
synced 2024-11-23 21:39:52 +00:00
85 lines
3.9 KiB
C++
85 lines
3.9 KiB
C++
// Copyright (c) 2021- PPSSPP Project.
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, version 2.0 or later versions.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License 2.0 for more details.
|
|
|
|
// A copy of the GPL 2.0 should have been included with the program.
|
|
// If not, see http://www.gnu.org/licenses/
|
|
|
|
// Official git repository and contact information can be found at
|
|
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
|
|
|
|
#include "GPU/Software/FuncId.h"
|
|
#include "GPU/GPUState.h"
|
|
|
|
void ComputePixelFuncID(PixelFuncID *id) {
|
|
id->fullKey = 0;
|
|
|
|
// TODO: Could this be minz > 0x0000 || maxz < 0xFFFF? Maybe unsafe, depending on verts...
|
|
id->applyDepthRange = !gstate.isModeThrough();
|
|
// Dither happens even in clear mode.
|
|
id->dithering = gstate.isDitherEnabled();
|
|
id->fbFormat = gstate.FrameBufFormat();
|
|
id->useStandardStride = gstate.FrameBufStride() == 512 && gstate.DepthBufStride() == 512;
|
|
id->applyColorWriteMask = gstate.getColorMask() != 0;
|
|
|
|
id->clearMode = gstate.isModeClear();
|
|
if (id->clearMode) {
|
|
id->colorClear = gstate.isClearModeColorMask();
|
|
id->stencilClear = gstate.isClearModeAlphaMask();
|
|
id->depthClear = gstate.isClearModeDepthMask();
|
|
} else {
|
|
id->colorTest = gstate.isColorTestEnabled() && gstate.getColorTestFunction() != GE_COMP_ALWAYS;
|
|
if (gstate.isStencilTestEnabled() && gstate.getStencilTestFunction() == GE_COMP_ALWAYS) {
|
|
// If stencil always passes, force off when we won't write any stencil bits.
|
|
bool stencilWrite = (gstate.pmska & 0xFF) != 0xFF && gstate.FrameBufFormat() != GE_FORMAT_565;
|
|
if (gstate.isDepthTestEnabled() && gstate.getDepthTestFunction() != GE_COMP_ALWAYS)
|
|
id->stencilTest = stencilWrite && (gstate.getStencilOpZPass() != GE_STENCILOP_KEEP || gstate.getStencilOpZFail() != GE_STENCILOP_KEEP);
|
|
else
|
|
id->stencilTest = stencilWrite && gstate.getStencilOpZPass() != GE_STENCILOP_KEEP;
|
|
} else {
|
|
id->stencilTest = gstate.isStencilTestEnabled();
|
|
}
|
|
id->depthWrite = gstate.isDepthTestEnabled() && gstate.isDepthWriteEnabled();
|
|
|
|
if (id->stencilTest) {
|
|
id->stencilTestFunc = gstate.getStencilTestFunction();
|
|
id->stencilTestRef = gstate.getStencilTestRef() & gstate.getStencilTestMask();
|
|
id->hasStencilTestMask = gstate.getStencilTestMask() != 0xFF;
|
|
id->sFail = gstate.getStencilOpSFail();
|
|
id->zFail = gstate.isDepthTestEnabled() ? gstate.getStencilOpZFail() : GE_STENCILOP_KEEP;
|
|
id->zPass = gstate.getStencilOpZPass();
|
|
}
|
|
|
|
id->depthTestFunc = gstate.isDepthTestEnabled() ? gstate.getDepthTestFunction() : GE_COMP_ALWAYS;
|
|
id->alphaTestFunc = gstate.isAlphaTestEnabled() ? gstate.getAlphaTestFunction() : GE_COMP_ALWAYS;
|
|
if (id->alphaTestFunc != GE_COMP_ALWAYS) {
|
|
id->alphaTestRef = gstate.getAlphaTestRef() & gstate.getAlphaTestMask();
|
|
id->hasAlphaTestMask = gstate.getAlphaTestMask() != 0xFF;
|
|
}
|
|
|
|
id->alphaBlend = gstate.isAlphaBlendEnabled();
|
|
// Force it off if the factors are constant and don't blend. Some games use this...
|
|
if (id->alphaBlend && gstate.getBlendEq() == GE_BLENDMODE_MUL_AND_ADD) {
|
|
bool srcFixedOne = gstate.getBlendFuncA() == GE_SRCBLEND_FIXA && gstate.getFixA() == 0x00FFFFFF;
|
|
bool dstFixedZero = gstate.getBlendFuncB() == GE_DSTBLEND_FIXB && gstate.getFixB() == 0x00000000;
|
|
if (srcFixedOne && dstFixedZero)
|
|
id->alphaBlend = false;
|
|
}
|
|
if (id->alphaBlend) {
|
|
id->alphaBlendEq = gstate.getBlendEq();
|
|
id->alphaBlendSrc = gstate.getBlendFuncA();
|
|
id->alphaBlendDst = gstate.getBlendFuncB();
|
|
}
|
|
|
|
id->applyLogicOp = gstate.isLogicOpEnabled() && gstate.getLogicOp() != GE_LOGIC_COPY;
|
|
id->applyFog = gstate.isFogEnabled() && !gstate.isModeThrough();
|
|
}
|
|
}
|