From ace5e90b3dbc33f0fc34ac2f3dc40d3c990a6a11 Mon Sep 17 00:00:00 2001
From: Arne Schwabe <arne@rfc2549.org>
Date: Mon, 2 Jul 2012 17:28:05 +0200
Subject: Update lzo version

---
 lzo/src/lzo1x_d.ch | 70 ++++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 50 insertions(+), 20 deletions(-)

(limited to 'lzo/src/lzo1x_d.ch')

diff --git a/lzo/src/lzo1x_d.ch b/lzo/src/lzo1x_d.ch
index d068866b..49cf3266 100644
--- a/lzo/src/lzo1x_d.ch
+++ b/lzo/src/lzo1x_d.ch
@@ -2,6 +2,9 @@
 
    This file is part of the LZO real-time data compression library.
 
+   Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer
    Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer
    Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer
    Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer
@@ -41,17 +44,6 @@
 #include "lzo1_d.ch"
 
 
-#undef __COPY4
-#define __COPY4(dst,src)    * (lzo_uint32p)(dst) = * (const lzo_uint32p)(src)
-
-#undef COPY4
-#if defined(LZO_UNALIGNED_OK_4)
-#  define COPY4(dst,src)    __COPY4(dst,src)
-#elif defined(LZO_ALIGNED_OK_4)
-#  define COPY4(dst,src)    __COPY4((lzo_uintptr_t)(dst),(lzo_uintptr_t)(src))
-#endif
-
-
 /***********************************************************************
 // decompress a block of data.
 ************************************************************************/
@@ -134,19 +126,36 @@ DO_DECOMPRESS  ( const lzo_bytep in , lzo_uint  in_len,
         }
         /* copy literals */
         assert(t > 0); NEED_OP(t+3); NEED_IP(t+4);
-#if defined(LZO_UNALIGNED_OK_4) || defined(LZO_ALIGNED_OK_4)
+#if defined(LZO_UNALIGNED_OK_8) && defined(LZO_UNALIGNED_OK_4)
+        t += 3;
+        if (t >= 8) do
+        {
+            UA_COPY64(op,ip);
+            op += 8; ip += 8; t -= 8;
+        } while (t >= 8);
+        if (t >= 4)
+        {
+            UA_COPY32(op,ip);
+            op += 4; ip += 4; t -= 4;
+        }
+        if (t > 0)
+        {
+            *op++ = *ip++;
+            if (t > 1) { *op++ = *ip++; if (t > 2) { *op++ = *ip++; } }
+        }
+#elif defined(LZO_UNALIGNED_OK_4) || defined(LZO_ALIGNED_OK_4)
 #if !defined(LZO_UNALIGNED_OK_4)
         if (PTR_ALIGNED2_4(op,ip))
         {
 #endif
-        COPY4(op,ip);
+        UA_COPY32(op,ip);
         op += 4; ip += 4;
         if (--t > 0)
         {
             if (t >= 4)
             {
                 do {
-                    COPY4(op,ip);
+                    UA_COPY32(op,ip);
                     op += 4; ip += 4; t -= 4;
                 } while (t >= 4);
                 if (t > 0) do *op++ = *ip++; while (--t > 0);
@@ -159,7 +168,7 @@ DO_DECOMPRESS  ( const lzo_bytep in , lzo_uint  in_len,
         else
 #endif
 #endif
-#if !defined(LZO_UNALIGNED_OK_4)
+#if !defined(LZO_UNALIGNED_OK_4) && !defined(LZO_UNALIGNED_OK_8)
         {
             *op++ = *ip++; *op++ = *ip++; *op++ = *ip++;
             do *op++ = *ip++; while (--t > 0);
@@ -284,7 +293,7 @@ match:
                 }
 #elif defined(LZO_UNALIGNED_OK_2) && defined(LZO_ABI_LITTLE_ENDIAN)
                 m_pos = op - 1;
-                m_pos -= (* (const lzo_ushortp) ip) >> 2;
+                m_pos -= UA_GET16(ip) >> 2;
 #else
                 m_pos = op - 1;
                 m_pos -= (ip[0] >> 2) + (ip[1] << 6);
@@ -329,7 +338,7 @@ match:
 #if defined(LZO1Z)
                 m_pos -= (ip[0] << 6) + (ip[1] >> 2);
 #elif defined(LZO_UNALIGNED_OK_2) && defined(LZO_ABI_LITTLE_ENDIAN)
-                m_pos -= (* (const lzo_ushortp) ip) >> 2;
+                m_pos -= UA_GET16(ip) >> 2;
 #else
                 m_pos -= (ip[0] >> 2) + (ip[1] << 6);
 #endif
@@ -378,7 +387,28 @@ match:
 #else /* !COPY_DICT */
 
             TEST_LB(m_pos); assert(t > 0); NEED_OP(t+3-1);
-#if defined(LZO_UNALIGNED_OK_4) || defined(LZO_ALIGNED_OK_4)
+#if defined(LZO_UNALIGNED_OK_8) && defined(LZO_UNALIGNED_OK_4)
+            if (op - m_pos >= 8)
+            {
+                t += (3 - 1);
+                if (t >= 8) do
+                {
+                    UA_COPY64(op,m_pos);
+                    op += 8; m_pos += 8; t -= 8;
+                } while (t >= 8);
+                if (t >= 4)
+                {
+                    UA_COPY32(op,m_pos);
+                    op += 4; m_pos += 4; t -= 4;
+                }
+                if (t > 0)
+                {
+                    *op++ = m_pos[0];
+                    if (t > 1) { *op++ = m_pos[1]; if (t > 2) { *op++ = m_pos[2]; } }
+                }
+            }
+            else
+#elif defined(LZO_UNALIGNED_OK_4) || defined(LZO_ALIGNED_OK_4)
 #if !defined(LZO_UNALIGNED_OK_4)
             if (t >= 2 * 4 - (3 - 1) && PTR_ALIGNED2_4(op,m_pos))
             {
@@ -387,10 +417,10 @@ match:
             if (t >= 2 * 4 - (3 - 1) && (op - m_pos) >= 4)
             {
 #endif
-                COPY4(op,m_pos);
+                UA_COPY32(op,m_pos);
                 op += 4; m_pos += 4; t -= 4 - (3 - 1);
                 do {
-                    COPY4(op,m_pos);
+                    UA_COPY32(op,m_pos);
                     op += 4; m_pos += 4; t -= 4;
                 } while (t >= 4);
                 if (t > 0) do *op++ = *m_pos++; while (--t > 0);
-- 
cgit v1.2.3