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 Texture unit usage tests 20 21 Tests: 22 + dEQP-GLES2.functional.texture.units.* 23 24 Includes: 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 32 Description: 33 34 For each texture unit a 2D or cube map texture is generated. Shader samples all 35 textures and adds scaled lookup values together to yield a value in range 0..1 36 for each output component. 37 38 For each texture a separate coordinate array is generated, yielding different 39 sample points. Simple quad is rendered with a fragment shader that adds texture 40 lookup results together. Resulting image is compared against a reference image 41 produced by a reference renderer. 42
