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      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     Rasterization Tests
     20 
     21 Tests:
     22  + dEQP-GLES2.functional.rasterization.*
     23 
     24 Includes:
     25  + Primitive rasterization
     26    - Points
     27    - Lines
     28    - Triangles
     29  + Individual triangles, triangle strips and triangle fans
     30  + Varying interpolation in all primitives
     31  + Projected (w != 1) and non-projected (w == 1) coordinates
     32  + Fill rule verification
     33  + Culling
     34  + Multisample rasterization
     35 
     36 Description:
     37 
     38 This test set compares images rendered by a reference software
     39 rasterizer to images rendered by the target. Rasterized points, lines
     40 and triangles are compared to reference, and a deviation of 1 pixel in
     41 position is allowed.
     42 
     43 Fill rules are tested using additive blend so that pixels on shared
     44 triangle edges are filled exactly once. Because exact fill rules are
     45 not specified, reference rasterizer uses all valid combinations of
     46 LEFT, RIGHT, TOP and BOTTOM.
     47 
     48 Value interpolation is tested for lines and triangles with
     49 vertex-specific colors, small deviation in interpolated color is allowed.
     50 
     51 Multisample rasterization is tested with points, lines and triangles.
     52 Because sampling pattern is unknown, deviation in produced colors is
     53 allowed.
     54