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 Shader Storage / Image Storage synchronization tests 20 21 Tests: 22 + dEQP-GLES31.functional.synchronization.* 23 24 Includes: 25 26 + In-invocation synchronization 27 - Test synchronization primitives within a single invocation. 28 29 + Inter-invocation synchronization 30 - Test synchronization between work group invocations. 31 32 + Inter-call synchronization 33 - Test synchronization between draw calls 34 35 Excludes: 36 37 - Inter-invocation synchronization without use of barrier() 38 - Use vertex, fragment, or geometry shaders. 39 40 Description: 41 42 In-invocation synchronization tests read and write to a coherent image or 43 buffer within a single invocation. Data accessed by a single invocation is not 44 accessed by other invocations. Image accesses are synchronized using 45 memoryBarrierImage(). SSBO accesses do not need to be explicitly synchronized 46 as memory operations execute in order. 47 48 Inter-invocation synchronization tests read and write to a coherent image or 49 buffer within a single work group. Data accessed by a single invocation is also 50 accessed by another invocation within the work group. Accesses are synchronized 51 using a combination of groupMemoryBarrier() and barrier(). 52 53 inter_call.with_memory_barrier test cases read and write to an image or buffer. 54 Data written in a single call is read in another call. glMemoryBarrier() is used 55 for synchronization between the calls. 56 57 inter_call.without_memory_barrier.* inter-call synchronization tests modify a image 58 or buffer declared as volatile with atomic operations or using atomic counters. 59 Multiple computes are dispatched without calling MemoryBarrier(). Result and 60 intermediate results are checked to verify operation atomicy over multiple compute 61 dispatches. 62 63 inter_call.without_memory_barrier.ssbo_atomic_counter_mixed_* cases test relative 64 atomicy of buffer atomic operations and atomic counter operations. Separate programs 65 modify atomically either a buffer or an atomic counter backed by the same buffer. 66 Multiple instances of programs are dispatched without calling MemoryBarrrier(). Buffer 67 content and intermediate values are checked to verify atomicy between operations. 68
