Add Groups API

Signed-off-by: Clifford Wolf <clifford@clifford.at>

3 files changed, 32 insertions, 0 deletions

diff --git a/ecp5/arch.cc b/ecp5/arch.cc
index 7383e0e7..286151d8 100644
--- a/ecp5/arch.cc
+++ b/ecp5/arch.cc
@@ -317,6 +317,8 @@ DecalXY Arch::getWireDecal(WireId wire) const { return {}; }
 
 DecalXY Arch::getPipDecal(PipId pip) const { return {}; };
 
+DecalXY Arch::getGroupDecal(PipId pip) const { return {}; };
+
 // -----------------------------------------------------------------------
 
 bool Arch::isValidBelForCell(CellInfo *cell, BelId bel) const { return true; }
diff --git a/ecp5/arch.h b/ecp5/arch.h
index 5f01c8c8..bbc7c561 100644
--- a/ecp5/arch.h
+++ b/ecp5/arch.h
@@ -711,6 +711,16 @@ struct Arch : BaseCtx
 
     // -------------------------------------------------
 
+    GroupId getGroupByName(IdString name) const { return GroupId(); }
+    IdString getGroupName(GroupId group) const { return IdString(); }
+    std::vector<GroupId> getGroups() const { return std::vector<GroupId>(); }
+    std::vector<BelId> getGroupBels(GroupId group) const { return std::vector<BelId>(); }
+    std::vector<WireId> getGroupWires(GroupId group) const { return std::vector<WireId>(); }
+    std::vector<PipId> getGroupPips(GroupId group) const { return std::vector<PipId>(); }
+    std::vector<GroupId> getGroupGroups(GroupId group) const { return std::vector<GroupId>(); }
+
+    // -------------------------------------------------
+
     void estimatePosition(BelId bel, int &x, int &y, bool &gb) const;
     delay_t estimateDelay(WireId src, WireId dst) const;
     delay_t getDelayEpsilon() const { return 20; }
@@ -731,6 +741,7 @@ struct Arch : BaseCtx
     DecalXY getBelDecal(BelId bel) const;
     DecalXY getWireDecal(WireId wire) const;
     DecalXY getPipDecal(PipId pip) const;
+    DecalXY getGroupDecal(GroupId group) const;
 
     // -------------------------------------------------
 
diff --git a/ecp5/archdefs.h b/ecp5/archdefs.h
index 79b20619..797db5f7 100644
--- a/ecp5/archdefs.h
+++ b/ecp5/archdefs.h
@@ -105,11 +105,22 @@ struct PipId
     bool operator!=(const PipId &other) const { return index != other.index || location != other.location; }
 };
 
+struct GroupId
+{
+    int32_t index = -1;
+
+    bool operator==(const GroupId &other) const { return index == other.index; }
+    bool operator!=(const GroupId &other) const { return index != other.index; }
+};
+
 struct DecalId
 {
     char type = 0; // Bel/Wire/Pip/Frame (b/w/p/f)
     Location location;
     uint32_t z = 0;
+
+    bool operator==(const DecalId &other) const { return type == other.type && location == other.location && z == other.z; }
+    bool operator!=(const DecalId &other) const { return type != other.type || location != other.location || z != other.z; }
 };
 
 NEXTPNR_NAMESPACE_END
@@ -155,6 +166,14 @@ template <> struct hash<NEXTPNR_NAMESPACE_PREFIX PipId>
     }
 };
 
+template <> struct hash<NEXTPNR_NAMESPACE_PREFIX GroupId>
+{
+    std::size_t operator()(const NEXTPNR_NAMESPACE_PREFIX GroupId &group) const noexcept
+    {
+        return std::hash<int>()(group.index);
+    }
+};
+
 template <> struct hash<NEXTPNR_NAMESPACE_PREFIX DecalId>
 {
     std::size_t operator()(const NEXTPNR_NAMESPACE_PREFIX DecalId &decal) const noexcept