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51 lines
2.0 KiB
51 lines
2.0 KiB
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drawElements Quality Program Test Specification
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-----------------------------------------------
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Copyright 2014 The Android Open Source Project
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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Stencil test
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Tests:
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+ dEQP-GLES2.functional.stencil.*
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Includes:
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+ Stencil buffer clears
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+ Stencil update with GL_REPLACE in stencil fail, depth fail and depth pass
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+ All stencil update modes in stencil fail
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+ All stencil comparison modes
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+ Masked stencil comparison
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+ Out-of-range stencil clear values
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+ Out-of-range stencil update values
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Excludes:
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+ Stencil compare or update with points and lines
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+ Exhaustive testing of all possible stencil test states
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Description:
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The viewport is divided into NxN cells, where each cell is assigned a target
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stencil value, choosen uniformly from available values. In addition there are
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two cells that target out-of-range stencil values. The amount of cells is scaled
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based on available stencil bits. For example with 8b there are 6x6 cells.
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Test cases choose input parameters for operations based on target stencil value
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for each cell. The parametrized operations are then executed and finally stencil
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buffer contents are visualized by rendering full-screen quads with different
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colors that pass only where stencil value equals one of the target values.
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The rendered image is compared against reference image. The reference is
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computed using a simplified model of the GL rendering pipe.
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