fixed pointer arithmetics; headless uses dummy audio with sdl_mixer

[d2df-sdl.git] / src / engine / e_fixedbuffer.pas

diff --git a/src/engine/e_fixedbuffer.pas b/src/engine/e_fixedbuffer.pas
index 3a450bbffe1cbdf9540a580619f6a33d531061f6..92c984c9d6115165241836d2b8778a540503a062 100644 (file)
--- a/src/engine/e_fixedbuffer.pas
+++ b/src/engine/e_fixedbuffer.pas
@@ -1,3 +1,18 @@
+(* Copyright (C)  DooM 2D:Forever Developers
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *)
 {$MODE DELPHI}
 unit e_fixedbuffer;
 
@@ -36,6 +51,7 @@ procedure e_Buffer_Write(B: pTBuffer; V: LongWord); overload;
 procedure e_Buffer_Write(B: pTBuffer; V: ShortInt); overload;
 procedure e_Buffer_Write(B: pTBuffer; V: SmallInt); overload;
 procedure e_Buffer_Write(B: pTBuffer; V: LongInt); overload;
+procedure e_Buffer_Write(B: pTBuffer; V: Int64); overload;
 
 procedure e_Buffer_Write(B: pTBuffer; V: string); overload;
 
@@ -94,7 +110,7 @@ begin
   if (B^.WritePos + N > B^.Len) then
     B^.Len := B^.WritePos + N + 1;
 
-  CopyMemory(Pointer(Cardinal(Addr(B^.Data)) + B^.WritePos),
+  CopyMemory(Pointer(NativeUInt(Addr(B^.Data)) + B^.WritePos),
              @V, N);
 
   B^.WritePos := B^.WritePos + N;
@@ -103,7 +119,7 @@ procedure e_Buffer_Read_Generic(B: pTBuffer; var V; N: Cardinal);
 begin
   if (B^.ReadPos + N >= BUF_SIZE) then Exit;
 
-  CopyMemory(@V, Pointer(Cardinal(Addr(B^.Data)) + B^.ReadPos), N);
+  CopyMemory(@V, Pointer(NativeUInt(Addr(B^.Data)) + B^.ReadPos), N);
 
   B^.ReadPos := B^.ReadPos + N;
 end;
@@ -139,6 +155,10 @@ procedure e_Buffer_Write(B: pTBuffer; V: LongInt); overload;
 begin
   e_Buffer_Write_Generic(B, V, 4);
 end;
+procedure e_Buffer_Write(B: pTBuffer; V: Int64); overload;
+begin
+  e_Buffer_Write_Generic(B, V, 8);
+end;
 
 procedure e_Buffer_Write(B: pTBuffer; V: string); overload;
 var
@@ -159,7 +179,7 @@ begin
 
   if (P > B^.Len) then B^.Len := P;
 
-  CopyMemory(Pointer(Cardinal(Addr(B^.Data)) + B^.WritePos),
+  CopyMemory(Pointer(NativeUInt(Addr(B^.Data)) + B^.WritePos),
              @V[1], Len);
 
   B^.WritePos := P;
@@ -221,7 +241,7 @@ begin
     Len := B^.Len - B^.ReadPos;
 
   SetLength(Result, Len);
-  CopyMemory(@Result[1], Pointer(Cardinal(Addr(B^.Data)) + B^.ReadPos), Len);
+  CopyMemory(@Result[1], Pointer(NativeUInt(Addr(B^.Data)) + B^.ReadPos), Len);
 
   B^.ReadPos := B^.ReadPos + Len;
 end;
@@ -236,7 +256,7 @@ end;
 
 procedure e_Raw_Read_Generic(P: Pointer; var V; N: Cardinal);
 begin
-  CopyMemory(@V, Pointer(Cardinal(P) + RawPos), N);
+  CopyMemory(@V, Pointer(NativeUInt(P) + RawPos), N);
 
   RawPos := RawPos + N;
 end;
@@ -281,7 +301,7 @@ begin
   if Len = 0 then Exit;
 
   SetLength(Result, Len);
-  CopyMemory(@Result[1], Pointer(Cardinal(P) + RawPos), Len);
+  CopyMemory(@Result[1], Pointer(NativeUInt(P) + RawPos), Len);
 
   RawPos := RawPos + Len;
 end;