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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     Scissoring Tests
     20 
     21 Tests:
     22  + dEQP-GLES2.functional.scissor.*
     23  + dEQP-GLES3.functional.scissor.*
     24 
     25 Includes:
     26  + Primitives
     27    - Points
     28    - Lines
     29    - Triangles
     30  + Clears (including GLES 3 only ones)
     31  + Framebuffer blits (GLES 3)
     32  + Scissor configurations
     33    - Enclosing rendered area
     34    - Enclosed by rendered area (if applicable)
     35    - Partially containing rendered area
     36    - (Partially) outside render target
     37 
     38 
     39 Excludes:
     40  + Blits to/from multiple buffers
     41  + Partially clipped points
     42 
     43 Description:
     44 
     45 This test set compares images rendered by the target with the scissor test
     46 enabled to references generated with the scissor test disabled but with
     47 areas outside the scissor rectangle cleared by the test logic.
     48 
     49 All primitive types are tested in all reasonable scissor configurations
     50 listed above. Points are tested in a somewhat limited fashion since
     51 support for point sizes above one is not required.
     52 
     53 After clearing with scissoring enabled, depth and stencil clears disable
     54 scissoring and render a colored fullscreen quad with depth & stencil
     55 tests requiring values set by the previous clears to produce the final output.
     56