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. 18------------------------------------------------------------------------- 19 Texture image specification tests 20 21Tests: 22 + dEQP-GLES2.functional.texture.teximage.* 23 24Includes: 25 + Texture upload using: 26 - glTexImage2D() 27 - glTexSubImage2D() 28 + Copy from framebuffer using: 29 - glCopyTexImage2D() 30 - glCopyTexSubImage2D() 31 + 2D and cube map texture targets 32 + Different pixel alignments in upload (GL_UNPACK_ALIGNMENT) 33 + All supported pixel formats 34 + Named and default texture objects 35 36Excludes: 37 + Compressed texture formats 38 39Description: 40 41Texture image specification tests build a complete 2D or cubemap texture 42using the texture image specification functions. The exact order and functions 43used depends on the test case. 44 45For glCopyTexImage2D() and glCopyTexSubImage2D() usage the rendering target 46is first filled with meaningful data by rendering a simple textured quad first. 47 48Reference texture object is constructed by applying reference versions of the 49same operations to a reference pixel buffer. 50 51Finally both the constructed texture is rendered using a simple quad and the 52resulting images are compared against the reference. Nearest-neighbor -filtering 53is used. For cubemap textures each face is rendered separately and all are 54verified. If mipmaps were constructed, texture is rendered multiple times 55sampling texels from different mipmap levels. 56