| /* | |
| * Copyright (c) 2019, 2021, Oracle and/or its affiliates. All rights reserved. | |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| * | |
| * This code is free software; you can redistribute it and/or modify it | |
| * under the terms of the GNU General Public License version 2 only, as | |
| * published by the Free Software Foundation. Oracle designates this | |
| * particular file as subject to the "Classpath" exception as provided | |
| * by Oracle in the LICENSE file that accompanied this code. | |
| * | |
| * This code 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 | |
| * version 2 for more details (a copy is included in the LICENSE file that | |
| * accompanied this code). | |
| * | |
| * You should have received a copy of the GNU General Public License version | |
| * 2 along with this work; if not, write to the Free Software Foundation, | |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| * | |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| * or visit www.oracle.com if you need additional information or have any | |
| * questions. | |
| */ | |
| #include "MTLStencilManager.h" | |
| //#include "MTLContext.h" | |
| //#include "sun_java2d_SunGraphics2D.h" | |
| //#import "common.h" | |
| @implementation MTLStencilManager { | |
| id<MTLDepthStencilState> _stencilState; | |
| id<MTLDepthStencilState> _genStencilState; | |
| } | |
| @synthesize stencilState = _stencilState; | |
| @synthesize genStencilState = _genStencilState; | |
| - (id _Nonnull)initWithDevice:(id<MTLDevice>) device { | |
| self = [super init]; | |
| if (self) { | |
| MTLDepthStencilDescriptor* stencilDescriptor; | |
| stencilDescriptor = [[MTLDepthStencilDescriptor new] autorelease]; | |
| stencilDescriptor.frontFaceStencil.stencilCompareFunction = MTLCompareFunctionEqual; | |
| stencilDescriptor.frontFaceStencil.stencilFailureOperation = MTLStencilOperationKeep; | |
| // TODO : backFaceStencil can be set to nil if all primitives are drawn as front-facing primitives | |
| // currently, fill parallelogram uses back-facing primitive drawing - that needs to be changed. | |
| // Once that part is changed, set backFaceStencil to nil | |
| //stencilDescriptor.backFaceStencil = nil; | |
| stencilDescriptor.backFaceStencil.stencilCompareFunction = MTLCompareFunctionEqual; | |
| stencilDescriptor.backFaceStencil.stencilFailureOperation = MTLStencilOperationKeep; | |
| _stencilState = [device newDepthStencilStateWithDescriptor:stencilDescriptor]; | |
| MTLDepthStencilDescriptor* genStencilDescriptor; | |
| genStencilDescriptor = [[MTLDepthStencilDescriptor new] autorelease]; | |
| genStencilDescriptor.backFaceStencil.stencilCompareFunction = MTLCompareFunctionAlways; | |
| genStencilDescriptor.backFaceStencil.depthStencilPassOperation = MTLStencilOperationReplace; | |
| genStencilDescriptor.frontFaceStencil.stencilCompareFunction = MTLCompareFunctionAlways; | |
| genStencilDescriptor.frontFaceStencil.depthStencilPassOperation = MTLStencilOperationReplace; | |
| _genStencilState = [device newDepthStencilStateWithDescriptor:genStencilDescriptor]; | |
| } | |
| return self; | |
| } | |
| - (void)dealloc { | |
| [_stencilState release]; | |
| [super dealloc]; | |
| } | |
| @end |