From 976db3db1ae1d95076480d29b46864453804449f Mon Sep 17 00:00:00 2001
From: DeaDDooMER <deaddoomer@deadsoftware.ru>
Date: Sun, 6 Oct 2019 17:03:22 +0300
Subject: [PATCH] vampimg endianess fixes

---
 src/lib/vampimg/ImagingTarga.pas   |  6 ++++++
 src/lib/vampimg/ImagingUtility.pas | 23 +++++++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/src/lib/vampimg/ImagingTarga.pas b/src/lib/vampimg/ImagingTarga.pas
index 66af5f2..921f009 100644
--- a/src/lib/vampimg/ImagingTarga.pas
+++ b/src/lib/vampimg/ImagingTarga.pas
@@ -197,6 +197,12 @@ begin
   begin
     // Read targa header
     Read(Handle, @Hdr, SizeOf(Hdr));
+    Hdr.ColorMapOff := LEtoN(Hdr.ColorMapOff);
+    Hdr.ColorMapLength := LEtoN(Hdr.ColorMapLength);
+    Hdr.XOrg := LEtoN(Hdr.XOrg);
+    Hdr.YOrg := LEtoN(Hdr.YOrg);
+    Hdr.Width := LEtoN(Hdr.Width);
+    Hdr.Height := LEtoN(Hdr.Height);
     // Skip image ID info
     Seek(Handle, Hdr.IDLength, smFromCurrent);
     // Determine image format
diff --git a/src/lib/vampimg/ImagingUtility.pas b/src/lib/vampimg/ImagingUtility.pas
index c137e1d..1fb47dd 100644
--- a/src/lib/vampimg/ImagingUtility.pas
+++ b/src/lib/vampimg/ImagingUtility.pas
@@ -1093,6 +1093,8 @@ begin
   Result := PByte(@W)^ = $FF;
 end;
 
+(* Vampimp wrongly use swaps for converting big-endian to little-endian anywhere *)
+{$IF DEFINED(FPC_LITTLE_ENDIAN)}
 function SwapEndianWord(Value: Word): Word;
 {$IF Defined(USE_ASM) and (not Defined(USE_INLINE))}
 asm
@@ -1170,6 +1172,27 @@ begin
   end;
 end;
 {$ENDIF}
+{$ELSEIF DEFINED(FPC_BIG_ENDIAN)}
+function SwapEndianWord(Value: Word): Word;
+begin
+  Result := Value
+end;
+
+procedure SwapEndianWord(P: PWordArray; Count: LongInt);
+begin
+end;
+
+function SwapEndianLongWord(Value: LongWord): LongWord;
+begin
+  Result := Value
+end;
+
+procedure SwapEndianLongWord(P: PLongWord; Count: LongInt);
+begin
+end;
+{$ELSE}
+  {$ERROR Unsupported endianness!}
+{$ENDIF}
 
 type
   TCrcTable = array[Byte] of LongWord;
-- 
2.29.2