Commit a75aa3b2c314b32152a886e847f60c80561e4878
2018-06-21T10:38:28
ES31: Support compute shader shared variables in HLSL This patch implements 'shared' variables in compute shader on D3D11 back-ends. GLSL shared variables are translated into 'groupshared' ones in HLSL. Note that although HLSL allows initializing the variables with 'groupshared' qualifier, currently we do not initialize them because: 1. It is very slow to for d3d11 drivers to compile the compute shader if we add the code to initialize a shared variable with large array size. 2. It seems unnecessary to do so and in GLSL it is not allowed to initialize a shared variable in the declaration. (ESSL 3.1, Chapter 4.3.8) BUG=angleproject:2682 TEST=angle_end2end_tests Change-Id: Ica8247e1b98059968612a36e369718ef113a598c Reviewed-on: https://chromium-review.googlesource.com/1109587 Reviewed-by: Jiajia Qin <jiajia.qin@intel.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>