1-------------------------------------------------------------------------
2drawElements Quality Program Test Specification
3-----------------------------------------------
4
5Copyright 2014 The Android Open Source Project
6
7Licensed under the Apache License, Version 2.0 (the "License");
8you may not use this file except in compliance with the License.
9You may obtain a copy of the License at
10
11     http://www.apache.org/licenses/LICENSE-2.0
12
13Unless required by applicable law or agreed to in writing, software
14distributed under the License is distributed on an "AS IS" BASIS,
15WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16See the License for the specific language governing permissions and
17limitations under the License.
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19    Texture unit usage tests
20
21Tests:
22 + dEQP-GLES2.functional.texture.units.*
23
24Includes:
25 + Use of multiple units simultaneously:
26   - 1, 2, 4, 8
27   - all available
28 + Mixed texture formats
29 + Mixed texture types
30 + Mixed texture parameters
31
32Description:
33
34For each texture unit a 2D or cube map texture is generated. Shader samples all
35textures and adds scaled lookup values together to yield a value in range 0..1
36for each output component.
37
38For each texture a separate coordinate array is generated, yielding different
39sample points. Simple quad is rendered with a fragment shader that adds texture
40lookup results together. Resulting image is compared against a reference image
41produced by a reference renderer.
42