Commit a4b506f79e3286ffcf3a5d68f20aa97a63edab8e
2020-04-03T18:31:22
No-Op draws when no active VS and/or FS is present According to the OpenGL ES 3.1 spec: 7.3. PROGRAM OBJECTS If there is no active program for the vertex or fragment shader stages, the results of vertex and fragment shader execution will respectively be undefined. However, this is not an error. To handle this, if no VS or FS is present in the active Program/PPO, we will no-op the draw command. Bug: angleproject:3570 Test: KHR-GLES31.core.sepshaderobjs.StateInteraction Change-Id: If19e9fbb1bc09fa0d490832079bb9f514eab6035 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2136386 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Tim Van Patten <timvp@google.com>