1e5c31af7Sopenharmony_ci------------------------------------------------------------------------- 2e5c31af7Sopenharmony_cidrawElements Quality Program Test Specification 3e5c31af7Sopenharmony_ci----------------------------------------------- 4e5c31af7Sopenharmony_ci 5e5c31af7Sopenharmony_ciCopyright 2014 The Android Open Source Project 6e5c31af7Sopenharmony_ci 7e5c31af7Sopenharmony_ciLicensed under the Apache License, Version 2.0 (the "License"); 8e5c31af7Sopenharmony_ciyou may not use this file except in compliance with the License. 9e5c31af7Sopenharmony_ciYou may obtain a copy of the License at 10e5c31af7Sopenharmony_ci 11e5c31af7Sopenharmony_ci http://www.apache.org/licenses/LICENSE-2.0 12e5c31af7Sopenharmony_ci 13e5c31af7Sopenharmony_ciUnless required by applicable law or agreed to in writing, software 14e5c31af7Sopenharmony_cidistributed under the License is distributed on an "AS IS" BASIS, 15e5c31af7Sopenharmony_ciWITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16e5c31af7Sopenharmony_ciSee the License for the specific language governing permissions and 17e5c31af7Sopenharmony_cilimitations under the License. 18e5c31af7Sopenharmony_ci------------------------------------------------------------------------- 19e5c31af7Sopenharmony_ci Stencil test 20e5c31af7Sopenharmony_ci 21e5c31af7Sopenharmony_ciTests: 22e5c31af7Sopenharmony_ci + dEQP-GLES2.functional.stencil.* 23e5c31af7Sopenharmony_ci 24e5c31af7Sopenharmony_ciIncludes: 25e5c31af7Sopenharmony_ci + Stencil buffer clears 26e5c31af7Sopenharmony_ci + Stencil update with GL_REPLACE in stencil fail, depth fail and depth pass 27e5c31af7Sopenharmony_ci + All stencil update modes in stencil fail 28e5c31af7Sopenharmony_ci + All stencil comparison modes 29e5c31af7Sopenharmony_ci + Masked stencil comparison 30e5c31af7Sopenharmony_ci + Out-of-range stencil clear values 31e5c31af7Sopenharmony_ci + Out-of-range stencil update values 32e5c31af7Sopenharmony_ci 33e5c31af7Sopenharmony_ciExcludes: 34e5c31af7Sopenharmony_ci + Stencil compare or update with points and lines 35e5c31af7Sopenharmony_ci + Exhaustive testing of all possible stencil test states 36e5c31af7Sopenharmony_ci 37e5c31af7Sopenharmony_ciDescription: 38e5c31af7Sopenharmony_ci 39e5c31af7Sopenharmony_ciThe viewport is divided into NxN cells, where each cell is assigned a target 40e5c31af7Sopenharmony_cistencil value, choosen uniformly from available values. In addition there are 41e5c31af7Sopenharmony_citwo cells that target out-of-range stencil values. The amount of cells is scaled 42e5c31af7Sopenharmony_cibased on available stencil bits. For example with 8b there are 6x6 cells. 43e5c31af7Sopenharmony_ci 44e5c31af7Sopenharmony_ciTest cases choose input parameters for operations based on target stencil value 45e5c31af7Sopenharmony_cifor each cell. The parametrized operations are then executed and finally stencil 46e5c31af7Sopenharmony_cibuffer contents are visualized by rendering full-screen quads with different 47e5c31af7Sopenharmony_cicolors that pass only where stencil value equals one of the target values. 48e5c31af7Sopenharmony_ci 49e5c31af7Sopenharmony_ciThe rendered image is compared against reference image. The reference is 50e5c31af7Sopenharmony_cicomputed using a simplified model of the GL rendering pipe. 51