1 ------------------------------------------------------------------------- 2 drawElements Quality Program Test Specification 3 ----------------------------------------------- 4 5 Copyright 2014 The Android Open Source Project 6 7 Licensed under the Apache License, Version 2.0 (the "License"); 8 you may not use this file except in compliance with the License. 9 You may obtain a copy of the License at 10 11 http://www.apache.org/licenses/LICENSE-2.0 12 13 Unless required by applicable law or agreed to in writing, software 14 distributed under the License is distributed on an "AS IS" BASIS, 15 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 See the License for the specific language governing permissions and 17 limitations under the License. 18 ------------------------------------------------------------------------- 19 Primitive restart tests 20 21 Tests: 22 + dEQP-GLES3.functional.primitive_restart.* 23 24 Includes: 25 + Draw using: 26 - glDrawElements() 27 - glDrawElementsInstanced() 28 - glDrawRangeElements() 29 + All primitive types 30 + All index types 31 + Primitive restart index placing special cases: 32 - Use/don't use two consecutive primitive restarts 33 - Restarts/no restarts as first value of index array 34 - Restarts/no restarts as last value of index array 35 - Combinations of above 36 37 Excludes: 38 + Test for correctness of rasterization 39 40 Description: 41 42 Vertex positions and indices are generated such that multiple primitives are 43 defined with the same index array, using the fixed primitive restart index to 44 separate the primitives. Various sizes (in terms of index count between 45 restarts) of primitives are generated. 46 47 Special cases are generated such that there are indices at the beginning or end 48 of the index array, or the index array contains two consecutive restarts 49 where there would normally be one. These cases are otherwise equivalent and 50 should render identically. 51 52 For glDrawElementsInstanced(), an instance count of 1 is used. For 53 glDrawRangeElements(), the start parameter is 0, and the end parameter is the 54 largest non-restart index in the index array. 55 56 The result is compared to an image produced by doing multiple ordinary draw 57 calls instead of using primitive restarts. 58
