X-Git-Url: http://deadsoftware.ru/gitweb?a=blobdiff_plain;f=src%2Fengine%2Fe_fixedbuffer.pas;h=bc355b1c671884e888ed025927592aec10c88387;hb=907f02bbf5d1e65c2ce052d883d522e30e7c7a8f;hp=e71445f08a171eed516a0416b060a1b7fc0c8b62;hpb=5472594f32e33da0c66606ec9eebc8f798ef6b54;p=d2df-sdl.git diff --git a/src/engine/e_fixedbuffer.pas b/src/engine/e_fixedbuffer.pas index e71445f..bc355b1 100644 --- a/src/engine/e_fixedbuffer.pas +++ b/src/engine/e_fixedbuffer.pas @@ -13,7 +13,7 @@ * You should have received a copy of the GNU General Public License * along with this program. If not, see . *) -{$MODE DELPHI} +{$INCLUDE e_amodes.inc} unit e_fixedbuffer; interface @@ -28,7 +28,7 @@ type Data: array [0..BUF_SIZE] of Byte; // îäèí áàéò ñâåðõó íà âñÿêèé ñëó÷àé ReadPos: Cardinal; WritePos: Cardinal; - Len: Cardinal; + Cap: Cardinal; end; pTBuffer = ^TBuffer; @@ -57,6 +57,8 @@ procedure e_Buffer_Write(B: pTBuffer; V: string); overload; procedure e_Buffer_Write(B: pTBuffer; V: TMD5Digest); overload; +procedure e_Buffer_Write(B: pTBuffer; V: pTBuffer); overload; + function e_Buffer_Read_Char(B: pTBuffer): Char; @@ -100,17 +102,17 @@ procedure e_Buffer_Clear(B: pTBuffer); begin B^.WritePos := 0; B^.ReadPos := 0; - B^.Len := 0; + B^.Cap := 0; end; procedure e_Buffer_Write_Generic(B: pTBuffer; var V; N: Cardinal); begin if (B^.WritePos + N >= BUF_SIZE) then Exit; - if (B^.WritePos + N > B^.Len) then - B^.Len := B^.WritePos + N + 1; + if (B^.WritePos + N > B^.Cap) then + B^.Cap := 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; @@ -119,7 +121,7 @@ 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; @@ -177,9 +179,9 @@ begin P := BUF_SIZE; end; - if (P > B^.Len) then B^.Len := P; + if (P > B^.Cap) then B^.Cap := P; - CopyMemory(Pointer(Cardinal(Addr(B^.Data)) + B^.WritePos), + CopyMemory(Pointer(NativeUInt(Addr(B^.Data)) + B^.WritePos), @V[1], Len); B^.WritePos := P; @@ -193,6 +195,27 @@ begin e_Buffer_Write(B, V[I]); end; +procedure e_Buffer_Write(B: pTBuffer; V: pTBuffer); overload; +var + N: Cardinal; +begin + if V = nil then Exit; + N := V^.WritePos; + Assert(N <> 0, 'don''t write empty buffers you fuck'); + if N = 0 then Exit; + + e_Buffer_Write(B, Word(N)); + + if (B^.WritePos + N >= BUF_SIZE) then Exit; + if (B^.WritePos + N > B^.Cap) then + B^.Cap := B^.WritePos + N + 1; + + CopyMemory(Pointer(NativeUInt(Addr(B^.Data)) + B^.WritePos), + Addr(V^.Data), N); + + B^.WritePos := B^.WritePos + N; +end; + function e_Buffer_Read_Char(B: pTBuffer): Char; begin @@ -237,11 +260,11 @@ begin Result := ''; if Len = 0 then Exit; - if B^.ReadPos + Len > B^.Len then - Len := B^.Len - B^.ReadPos; + if B^.ReadPos + Len > B^.Cap then + Len := B^.Cap - 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; @@ -256,7 +279,7 @@ 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; @@ -301,7 +324,7 @@ 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;