You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53 lines
2.0 KiB
53 lines
2.0 KiB
-------------------------------------------------------------------------
|
|
drawElements Quality Program Test Specification
|
|
-----------------------------------------------
|
|
|
|
Copyright 2014 The Android Open Source Project
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
-------------------------------------------------------------------------
|
|
Mipmapping tests
|
|
|
|
Tests:
|
|
+ dEQP-GLES3.functional.texture.mipmap.*
|
|
|
|
Includes:
|
|
+ All mipmap filtering modes
|
|
+ Lod computation verification
|
|
+ Affine and projected transforms
|
|
+ User-supplied bias to texture lookup
|
|
+ Lod controls: min and max lod
|
|
+ 2D and cube map textures
|
|
|
|
Excludes:
|
|
+ Only selected texture formats are exercised
|
|
|
|
Description:
|
|
|
|
Mipmapping tests render a pre-defined grid of quads. For 2D textures regular
|
|
4x4 grid layout is used. For cube map textures the viewport is recursively
|
|
subdivided into smaller areas and each is filled with samples from single
|
|
cube face.
|
|
|
|
Each texture level is filled with single color. However, each mipmap level
|
|
gets assigned a different color from a continuous gradient. Thus it is possible
|
|
to evaluate how accurately the lod was computed by inspecting the resulting
|
|
colorbuffer.
|
|
|
|
OpenGL ES specification allows approximating both derivate- and lod computation.
|
|
Thus two reference images are rendered: one rendered according to the minimum
|
|
bound for the approximation and another based on the maximum bound. The rendered
|
|
pixels must be in between the two bounds in order to be valid. In order to
|
|
compensate the derivate approximation the pixels are actually checked against
|
|
a 3x3 neighbor around the pixel.
|