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-rw-r--r--src/shader_recompiler/backend/glsl/emit_context.cpp11
-rw-r--r--src/shader_recompiler/backend/glsl/emit_context.h1
-rw-r--r--src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp36
3 files changed, 43 insertions, 5 deletions
diff --git a/src/shader_recompiler/backend/glsl/emit_context.cpp b/src/shader_recompiler/backend/glsl/emit_context.cpp
index ed0955da0..6c2828644 100644
--- a/src/shader_recompiler/backend/glsl/emit_context.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_context.cpp
@@ -306,6 +306,7 @@ EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile
SetupImages(bindings);
SetupTextures(bindings);
DefineHelperFunctions();
+ DefineConstants();
}
void EmitContext::SetupExtensions(std::string&) {
@@ -339,6 +340,9 @@ void EmitContext::SetupExtensions(std::string&) {
if (!info.uses_int64) {
header += "#extension GL_ARB_gpu_shader_int64 : enable\n";
}
+ if (profile.support_gl_warp_intrinsics) {
+ header += "#extension GL_NV_shader_thread_shuffle : enable\n";
+ }
}
if (info.stores_viewport_index && profile.support_viewport_index_layer_non_geometry &&
stage != Stage::Geometry) {
@@ -605,4 +609,11 @@ void EmitContext::SetupTextures(Bindings& bindings) {
}
}
+void EmitContext::DefineConstants() {
+ if (info.uses_fswzadd) {
+ header += "const float FSWZ_A[]=float[4](-1.f,1.f,-1.f,0.f);"
+ "const float FSWZ_B[]=float[4](-1.f,-1.f,1.f,-1.f);";
+ }
+}
+
} // namespace Shader::Backend::GLSL
diff --git a/src/shader_recompiler/backend/glsl/emit_context.h b/src/shader_recompiler/backend/glsl/emit_context.h
index dce99586e..2b0d22ce5 100644
--- a/src/shader_recompiler/backend/glsl/emit_context.h
+++ b/src/shader_recompiler/backend/glsl/emit_context.h
@@ -167,6 +167,7 @@ private:
void DefineStorageBuffers(Bindings& bindings);
void DefineGenericOutput(size_t index, u32 invocations);
void DefineHelperFunctions();
+ void DefineConstants();
std::string DefineGlobalMemoryFunctions();
void SetupImages(Bindings& bindings);
void SetupTextures(Bindings& bindings);
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp
index 38c49b164..6ced0776c 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp
@@ -35,9 +35,17 @@ std::string GetMaxThreadId(std::string_view thread_id, std::string_view clamp,
const auto min_thread_id{ComputeMinThreadId(thread_id, segmentation_mask)};
return ComputeMaxThreadId(min_thread_id, clamp, not_seg_mask);
}
+
+void UseShuffleNv(EmitContext& ctx, IR::Inst& inst, std::string_view shfl_op,
+ std::string_view value, std::string_view index,
+ [[maybe_unused]] std::string_view clamp, std::string_view segmentation_mask) {
+ const auto width{fmt::format("32u>>(bitCount({}&31u))", segmentation_mask)};
+ ctx.AddU32("{}={}({},{},{},shfl_in_bounds);", inst, shfl_op, value, index, width);
+ SetInBoundsFlag(ctx, inst);
+}
} // namespace
-void EmitLaneId([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst) {
+void EmitLaneId(EmitContext& ctx, IR::Inst& inst) {
ctx.AddU32("{}=gl_SubGroupInvocationARB&31u;", inst);
}
@@ -103,6 +111,10 @@ void EmitSubgroupGeMask(EmitContext& ctx, IR::Inst& inst) {
void EmitShuffleIndex(EmitContext& ctx, IR::Inst& inst, std::string_view value,
std::string_view index, std::string_view clamp,
std::string_view segmentation_mask) {
+ if (ctx.profile.support_gl_warp_intrinsics) {
+ UseShuffleNv(ctx, inst, "shuffleNV", value, index, clamp, segmentation_mask);
+ return;
+ }
const auto not_seg_mask{fmt::format("(~{})", segmentation_mask)};
const auto thread_id{"gl_SubGroupInvocationARB"};
const auto min_thread_id{ComputeMinThreadId(thread_id, segmentation_mask)};
@@ -117,6 +129,10 @@ void EmitShuffleIndex(EmitContext& ctx, IR::Inst& inst, std::string_view value,
void EmitShuffleUp(EmitContext& ctx, IR::Inst& inst, std::string_view value, std::string_view index,
std::string_view clamp, std::string_view segmentation_mask) {
+ if (ctx.profile.support_gl_warp_intrinsics) {
+ UseShuffleNv(ctx, inst, "shuffleUpNV", value, index, clamp, segmentation_mask);
+ return;
+ }
const auto thread_id{"gl_SubGroupInvocationARB"};
const auto max_thread_id{GetMaxThreadId(thread_id, clamp, segmentation_mask)};
const auto src_thread_id{fmt::format("({}-{})", thread_id, index)};
@@ -128,6 +144,10 @@ void EmitShuffleUp(EmitContext& ctx, IR::Inst& inst, std::string_view value, std
void EmitShuffleDown(EmitContext& ctx, IR::Inst& inst, std::string_view value,
std::string_view index, std::string_view clamp,
std::string_view segmentation_mask) {
+ if (ctx.profile.support_gl_warp_intrinsics) {
+ UseShuffleNv(ctx, inst, "shuffleDownNV", value, index, clamp, segmentation_mask);
+ return;
+ }
const auto thread_id{"gl_SubGroupInvocationARB"};
const auto max_thread_id{GetMaxThreadId(thread_id, clamp, segmentation_mask)};
const auto src_thread_id{fmt::format("({}+{})", thread_id, index)};
@@ -139,6 +159,10 @@ void EmitShuffleDown(EmitContext& ctx, IR::Inst& inst, std::string_view value,
void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, std::string_view value,
std::string_view index, std::string_view clamp,
std::string_view segmentation_mask) {
+ if (ctx.profile.support_gl_warp_intrinsics) {
+ UseShuffleNv(ctx, inst, "shuffleXorNV", value, index, clamp, segmentation_mask);
+ return;
+ }
const auto thread_id{"gl_SubGroupInvocationARB"};
const auto max_thread_id{GetMaxThreadId(thread_id, clamp, segmentation_mask)};
const auto src_thread_id{fmt::format("({}^{})", thread_id, index)};
@@ -147,10 +171,12 @@ void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, std::string_view val
ctx.AddU32("{}=shfl_in_bounds?readInvocationARB({},{}):{};", inst, value, src_thread_id, value);
}
-void EmitFSwizzleAdd([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
- [[maybe_unused]] std::string_view op_a, [[maybe_unused]] std::string_view op_b,
- [[maybe_unused]] std::string_view swizzle) {
- NotImplemented();
+void EmitFSwizzleAdd(EmitContext& ctx, IR::Inst& inst, std::string_view op_a, std::string_view op_b,
+ std::string_view swizzle) {
+ const auto mask{fmt::format("({}>>((gl_SubGroupInvocationARB&3)<<1))&3", swizzle)};
+ const std::string modifier_a = fmt::format("FSWZ_A[{}]", mask);
+ const std::string modifier_b = fmt::format("FSWZ_B[{}]", mask);
+ ctx.AddF32("{}=({}*{})+({}*{});", inst, op_a, modifier_a, op_b, modifier_b);
}
void EmitDPdxFine(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 14:22:07 +0100