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-rw-r--r--src/shader_recompiler/backend/glsl/emit_glsl_floating_point.cpp10
1 files changed, 6 insertions, 4 deletions
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_floating_point.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_floating_point.cpp
index 2aa9f2cd3..19a3c236d 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_floating_point.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_floating_point.cpp
@@ -161,12 +161,12 @@ void EmitFPSaturate16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::In
void EmitFPSaturate32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] std::string_view value) {
- ctx.AddF32("{}=clamp({},0.0,1.0);", inst, value);
+ ctx.AddF32("{}=min(max({},0.0),1.0);", inst, value);
}
void EmitFPSaturate64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] std::string_view value) {
- ctx.AddF64("{}=clamp({},0.0,1.0);", inst, value);
+ ctx.AddF64("{}=min(max({},0.0),1.0);", inst, value);
}
void EmitFPClamp16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
@@ -180,14 +180,16 @@ void EmitFPClamp32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst&
[[maybe_unused]] std::string_view value,
[[maybe_unused]] std::string_view min_value,
[[maybe_unused]] std::string_view max_value) {
- ctx.AddF32("{}=clamp({},float({}),float({}));", inst, value, min_value, max_value);
+ // GLSL's clamp does not produce desirable results
+ ctx.AddF32("{}=min(max({},float({})),float({}));", inst, value, min_value, max_value);
}
void EmitFPClamp64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] std::string_view value,
[[maybe_unused]] std::string_view min_value,
[[maybe_unused]] std::string_view max_value) {
- ctx.AddF64("{}=clamp({},double({}),double({}));", inst, value, min_value, max_value);
+ // GLSL's clamp does not produce desirable results
+ ctx.AddF64("{}=min(max({},double({})),double({}));", inst, value, min_value, max_value);
}
void EmitFPRoundEven16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,