Commit 19b51d298334ece4c986c385083fc60eefb7a888
2018-09-19T15:14:45
ES31: Support textureGather[Offset] on shadow samplers This patch implements translating textureGather[Offset] into HLSL when the sampler is a shadow sampler. The related HLSL function should be GatherCmp(). According to the definition of textureGatherOffset(): ([ESSL 3.1] Chapter 8.9.3 Page 138) - gvec4 textureGatherOffset(gsampler2D sampler, vec2 P, ivec2 offset, [,int comp]) - vec4 textureGatherOffset(sampler2DShadow sampler, vec2 P, float refZ, ivec2 offset) We need to add parameter "refZ" before "offset" when the sampler is a shadow sampler. Bug: angleproject:2826 Test: dEQP-GLES31.functional.texture.gather.basic.2d.depth32f.* dEQP-GLES31.functional.texture.gather.basic.2d_array.depth32f.* dEQP-GLES31.functional.texture.gather.basic.cube.depth32f.* dEQP-GLES31.functional.texture.gather.offset.min_required_offset.2d.depth32f.* dEQP-GLES31.functional.texture.gather.offset.min_required_offset.2d_array.depth32f.* dEQP-GLES31.functional.texture.gather.offset.implementation_offset.2d.depth32f.* dEQP-GLES31.functional.texture.gather.offset.implementation_offset.2d_array.depth32f.* Change-Id: I9a7d095dd3cfa41aaefd14d012ed1f309abfc6d5 Reviewed-on: https://chromium-review.googlesource.com/c/1244081 Commit-Queue: Jiawei Shao <jiawei.shao@intel.com> Reviewed-by: Jiajia Qin <jiajia.qin@intel.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>