1*03ce13f7SAndroid Build Coastguard Worker // Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2*03ce13f7SAndroid Build Coastguard Worker // 3*03ce13f7SAndroid Build Coastguard Worker // Licensed under the Apache License, Version 2.0 (the "License"); 4*03ce13f7SAndroid Build Coastguard Worker // you may not use this file except in compliance with the License. 5*03ce13f7SAndroid Build Coastguard Worker // You may obtain a copy of the License at 6*03ce13f7SAndroid Build Coastguard Worker // 7*03ce13f7SAndroid Build Coastguard Worker // http://www.apache.org/licenses/LICENSE-2.0 8*03ce13f7SAndroid Build Coastguard Worker // 9*03ce13f7SAndroid Build Coastguard Worker // Unless required by applicable law or agreed to in writing, software 10*03ce13f7SAndroid Build Coastguard Worker // distributed under the License is distributed on an "AS IS" BASIS, 11*03ce13f7SAndroid Build Coastguard Worker // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12*03ce13f7SAndroid Build Coastguard Worker // See the License for the specific language governing permissions and 13*03ce13f7SAndroid Build Coastguard Worker // limitations under the License. 14*03ce13f7SAndroid Build Coastguard Worker 15*03ce13f7SAndroid Build Coastguard Worker #ifndef sw_Clipper_hpp 16*03ce13f7SAndroid Build Coastguard Worker #define sw_Clipper_hpp 17*03ce13f7SAndroid Build Coastguard Worker 18*03ce13f7SAndroid Build Coastguard Worker #include "System/Types.hpp" 19*03ce13f7SAndroid Build Coastguard Worker 20*03ce13f7SAndroid Build Coastguard Worker namespace sw { 21*03ce13f7SAndroid Build Coastguard Worker 22*03ce13f7SAndroid Build Coastguard Worker struct DrawCall; 23*03ce13f7SAndroid Build Coastguard Worker struct Polygon; 24*03ce13f7SAndroid Build Coastguard Worker 25*03ce13f7SAndroid Build Coastguard Worker struct Clipper 26*03ce13f7SAndroid Build Coastguard Worker { 27*03ce13f7SAndroid Build Coastguard Worker enum ClipFlags 28*03ce13f7SAndroid Build Coastguard Worker { 29*03ce13f7SAndroid Build Coastguard Worker // Indicates the vertex is outside the respective frustum plane 30*03ce13f7SAndroid Build Coastguard Worker CLIP_RIGHT = 1 << 0, 31*03ce13f7SAndroid Build Coastguard Worker CLIP_TOP = 1 << 1, 32*03ce13f7SAndroid Build Coastguard Worker CLIP_FAR = 1 << 2, 33*03ce13f7SAndroid Build Coastguard Worker CLIP_LEFT = 1 << 3, 34*03ce13f7SAndroid Build Coastguard Worker CLIP_BOTTOM = 1 << 4, 35*03ce13f7SAndroid Build Coastguard Worker CLIP_NEAR = 1 << 5, 36*03ce13f7SAndroid Build Coastguard Worker 37*03ce13f7SAndroid Build Coastguard Worker CLIP_SIDES = CLIP_LEFT | CLIP_RIGHT | CLIP_BOTTOM | CLIP_TOP, 38*03ce13f7SAndroid Build Coastguard Worker CLIP_FRUSTUM = CLIP_SIDES | CLIP_NEAR | CLIP_FAR, 39*03ce13f7SAndroid Build Coastguard Worker 40*03ce13f7SAndroid Build Coastguard Worker CLIP_FINITE = 1 << 7, // All position coordinates are finite 41*03ce13f7SAndroid Build Coastguard Worker }; 42*03ce13f7SAndroid Build Coastguard Worker 43*03ce13f7SAndroid Build Coastguard Worker static bool Clip(Polygon &polygon, int clipFlagsOr, const DrawCall &draw); 44*03ce13f7SAndroid Build Coastguard Worker }; 45*03ce13f7SAndroid Build Coastguard Worker 46*03ce13f7SAndroid Build Coastguard Worker } // namespace sw 47*03ce13f7SAndroid Build Coastguard Worker 48*03ce13f7SAndroid Build Coastguard Worker #endif // sw_Clipper_hpp 49