1 // 2 // Copyright 2016 Google Inc. 3 // 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 // 7 8 #ifndef HS_GLSL_MACROS_VENDOR_ONCE 9 #define HS_GLSL_MACROS_VENDOR_ONCE 10 11 // 12 // 13 // 14 15 #include "../hs_glsl_macros.h" 16 17 // 18 // Waiting for Intel's to provide an equivalent to their OpenCL 19 // "reqd_subgroup_size" attribute. 20 // 21 22 #define HS_GLSL_SUBGROUP_SIZE() 23 24 // 25 // OVERRIDE SUBGROUP IDENTIFIERS BECAUSE INTEL ISN'T GUARANTEEING A 26 // FIXED SUBGROUP SIZE AT THIS POINT IN TIME 27 // 28 29 #if 1 30 31 #define HS_SUBGROUP_PREAMBLE() \ 32 const uint hs_subgroup_id = gl_LocalInvocationID.x / HS_SLAB_THREADS; \ 33 const uint hs_subgroup_lane_id = gl_LocalInvocationID.x & (HS_SLAB_THREADS-1); 34 35 #define HS_SUBGROUP_ID() hs_subgroup_id 36 #define HS_SUBGROUP_LANE_ID() hs_subgroup_lane_id 37 38 #else 39 40 #define HS_SUBGROUP_PREAMBLE() 41 42 #define HS_SUBGROUP_ID() gl_SubgroupID 43 #define HS_SUBGROUP_LANE_ID() gl_SubgroupInvocationID 44 45 #endif 46 47 // 48 // CHOOSE A COMPARE-EXCHANGE IMPLEMENTATION 49 // 50 51 #if (HS_KEY_WORDS == 1) 52 #define HS_CMP_XCHG(a,b) HS_CMP_XCHG_V0(a,b) 53 #elif (HS_KEY_WORDS == 2) 54 #define HS_CMP_XCHG(a,b) HS_CMP_XCHG_V1(a,b) 55 #endif 56 57 // 58 // CHOOSE A CONDITIONAL MIN/MAX IMPLEMENTATION 59 // 60 61 #if (HS_KEY_WORDS == 1) 62 #define HS_COND_MIN_MAX(lt,a,b) HS_COND_MIN_MAX_V0(lt,a,b) 63 #elif (HS_KEY_WORDS == 2) 64 #define HS_COND_MIN_MAX(lt,a,b) HS_COND_MIN_MAX_V0(lt,a,b) 65 #endif 66 67 // 68 // 69 // 70 71 #endif 72 73 // 74 // 75 // 76
