Convert tabs to spaces in the libjpeg code and the SIMD code (TurboJPEG retains the use of tabs for historical reasons. They were annoying in the libjpeg code primarily because they were not consistently used and because they were used to format as well as indent the code. In the case of TurboJPEG, tabs are used just to indent the code, so even if the editor assumes a different tab width, the code will still be readable.)

git-svn-id: svn://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1278 632fc199-4ca6-4c93-a231-07263d6284db

1 files changed, 133 insertions, 133 deletions

diff --git a/jdphuff.c b/jdphuff.c
index fa97aab..783d8a8 100644
--- a/jdphuff.c
+++ b/jdphuff.c
@@ -17,7 +17,7 @@
 #define JPEG_INTERNALS
 #include "jinclude.h"
 #include "jpeglib.h"
-#include "jdhuff.h"		/* Declarations shared with jdhuff.c */
+#include "jdhuff.h"             /* Declarations shared with jdhuff.c */
 
 
 #ifdef D_PROGRESSIVE_SUPPORTED
@@ -30,8 +30,8 @@
  */
 
 typedef struct {
-  unsigned int EOBRUN;			/* remaining EOBs in EOBRUN */
-  int last_dc_val[MAX_COMPS_IN_SCAN];	/* last DC coef for each component */
+  unsigned int EOBRUN;                  /* remaining EOBs in EOBRUN */
+  int last_dc_val[MAX_COMPS_IN_SCAN];   /* last DC coef for each component */
 } savable_state;
 
 /* This macro is to work around compilers with missing or broken
@@ -44,11 +44,11 @@ typedef struct {
 #else
 #if MAX_COMPS_IN_SCAN == 4
 #define ASSIGN_STATE(dest,src)  \
-	((dest).EOBRUN = (src).EOBRUN, \
-	 (dest).last_dc_val[0] = (src).last_dc_val[0], \
-	 (dest).last_dc_val[1] = (src).last_dc_val[1], \
-	 (dest).last_dc_val[2] = (src).last_dc_val[2], \
-	 (dest).last_dc_val[3] = (src).last_dc_val[3])
+        ((dest).EOBRUN = (src).EOBRUN, \
+         (dest).last_dc_val[0] = (src).last_dc_val[0], \
+         (dest).last_dc_val[1] = (src).last_dc_val[1], \
+         (dest).last_dc_val[2] = (src).last_dc_val[2], \
+         (dest).last_dc_val[3] = (src).last_dc_val[3])
 #endif
 #endif
 
@@ -59,11 +59,11 @@ typedef struct {
   /* These fields are loaded into local variables at start of each MCU.
    * In case of suspension, we exit WITHOUT updating them.
    */
-  bitread_perm_state bitstate;	/* Bit buffer at start of MCU */
-  savable_state saved;		/* Other state at start of MCU */
+  bitread_perm_state bitstate;  /* Bit buffer at start of MCU */
+  savable_state saved;          /* Other state at start of MCU */
 
   /* These fields are NOT loaded into local working state. */
-  unsigned int restarts_to_go;	/* MCUs left in this restart interval */
+  unsigned int restarts_to_go;  /* MCUs left in this restart interval */
 
   /* Pointers to derived tables (these workspaces have image lifespan) */
   d_derived_tbl * derived_tbls[NUM_HUFF_TBLS];
@@ -75,13 +75,13 @@ typedef phuff_entropy_decoder * phuff_entropy_ptr;
 
 /* Forward declarations */
 METHODDEF(boolean) decode_mcu_DC_first JPP((j_decompress_ptr cinfo,
-					    JBLOCKROW *MCU_data));
+                                            JBLOCKROW *MCU_data));
 METHODDEF(boolean) decode_mcu_AC_first JPP((j_decompress_ptr cinfo,
-					    JBLOCKROW *MCU_data));
+                                            JBLOCKROW *MCU_data));
 METHODDEF(boolean) decode_mcu_DC_refine JPP((j_decompress_ptr cinfo,
-					     JBLOCKROW *MCU_data));
+                                             JBLOCKROW *MCU_data));
 METHODDEF(boolean) decode_mcu_AC_refine JPP((j_decompress_ptr cinfo,
-					     JBLOCKROW *MCU_data));
+                                             JBLOCKROW *MCU_data));
 
 
 /*
@@ -117,7 +117,7 @@ start_pass_phuff_decoder (j_decompress_ptr cinfo)
     if (cinfo->Al != cinfo->Ah-1)
       bad = TRUE;
   }
-  if (cinfo->Al > 13)		/* need not check for < 0 */
+  if (cinfo->Al > 13)           /* need not check for < 0 */
     bad = TRUE;
   /* Arguably the maximum Al value should be less than 13 for 8-bit precision,
    * but the spec doesn't say so, and we try to be liberal about what we
@@ -127,7 +127,7 @@ start_pass_phuff_decoder (j_decompress_ptr cinfo)
    */
   if (bad)
     ERREXIT4(cinfo, JERR_BAD_PROGRESSION,
-	     cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al);
+             cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al);
   /* Update progression status, and verify that scan order is legal.
    * Note that inter-scan inconsistencies are treated as warnings
    * not fatal errors ... not clear if this is right way to behave.
@@ -140,7 +140,7 @@ start_pass_phuff_decoder (j_decompress_ptr cinfo)
     for (coefi = cinfo->Ss; coefi <= cinfo->Se; coefi++) {
       int expected = (coef_bit_ptr[coefi] < 0) ? 0 : coef_bit_ptr[coefi];
       if (cinfo->Ah != expected)
-	WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, coefi);
+        WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, coefi);
       coef_bit_ptr[coefi] = cinfo->Al;
     }
   }
@@ -164,15 +164,15 @@ start_pass_phuff_decoder (j_decompress_ptr cinfo)
      * We may build same derived table more than once, but it's not expensive.
      */
     if (is_DC_band) {
-      if (cinfo->Ah == 0) {	/* DC refinement needs no table */
-	tbl = compptr->dc_tbl_no;
-	jpeg_make_d_derived_tbl(cinfo, TRUE, tbl,
-				& entropy->derived_tbls[tbl]);
+      if (cinfo->Ah == 0) {     /* DC refinement needs no table */
+        tbl = compptr->dc_tbl_no;
+        jpeg_make_d_derived_tbl(cinfo, TRUE, tbl,
+                                & entropy->derived_tbls[tbl]);
       }
     } else {
       tbl = compptr->ac_tbl_no;
       jpeg_make_d_derived_tbl(cinfo, FALSE, tbl,
-			      & entropy->derived_tbls[tbl]);
+                              & entropy->derived_tbls[tbl]);
       /* remember the single active table */
       entropy->ac_derived_tbl = entropy->derived_tbls[tbl];
     }
@@ -264,7 +264,7 @@ process_restart (j_decompress_ptr cinfo)
 /*
  * Huffman MCU decoding.
  * Each of these routines decodes and returns one MCU's worth of
- * Huffman-compressed coefficients. 
+ * Huffman-compressed coefficients.
  * The coefficients are reordered from zigzag order into natural array order,
  * but are not dequantized.
  *
@@ -285,7 +285,7 @@ process_restart (j_decompress_ptr cinfo)
 
 METHODDEF(boolean)
 decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
-{   
+{
   phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
   int Al = cinfo->Al;
   register int s, r;
@@ -300,7 +300,7 @@ decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   if (cinfo->restart_interval) {
     if (entropy->restarts_to_go == 0)
       if (! process_restart(cinfo))
-	return FALSE;
+        return FALSE;
   }
 
   /* If we've run out of data, just leave the MCU set to zeroes.
@@ -325,9 +325,9 @@ decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
       /* Section F.2.2.1: decode the DC coefficient difference */
       HUFF_DECODE(s, br_state, tbl, return FALSE, label1);
       if (s) {
-	CHECK_BIT_BUFFER(br_state, s, return FALSE);
-	r = GET_BITS(s);
-	s = HUFF_EXTEND(r, s);
+        CHECK_BIT_BUFFER(br_state, s, return FALSE);
+        r = GET_BITS(s);
+        s = HUFF_EXTEND(r, s);
       }
 
       /* Convert DC difference to actual value, update last_dc_val */
@@ -356,7 +356,7 @@ decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
 METHODDEF(boolean)
 decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
-{   
+{
   phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
   int Se = cinfo->Se;
   int Al = cinfo->Al;
@@ -370,7 +370,7 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   if (cinfo->restart_interval) {
     if (entropy->restarts_to_go == 0)
       if (! process_restart(cinfo))
-	return FALSE;
+        return FALSE;
   }
 
   /* If we've run out of data, just leave the MCU set to zeroes.
@@ -381,49 +381,49 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
     /* Load up working state.
      * We can avoid loading/saving bitread state if in an EOB run.
      */
-    EOBRUN = entropy->saved.EOBRUN;	/* only part of saved state we need */
+    EOBRUN = entropy->saved.EOBRUN;     /* only part of saved state we need */
 
     /* There is always only one block per MCU */
 
-    if (EOBRUN > 0)		/* if it's a band of zeroes... */
-      EOBRUN--;			/* ...process it now (we do nothing) */
+    if (EOBRUN > 0)             /* if it's a band of zeroes... */
+      EOBRUN--;                 /* ...process it now (we do nothing) */
     else {
       BITREAD_LOAD_STATE(cinfo,entropy->bitstate);
       block = MCU_data[0];
       tbl = entropy->ac_derived_tbl;
 
       for (k = cinfo->Ss; k <= Se; k++) {
-	HUFF_DECODE(s, br_state, tbl, return FALSE, label2);
-	r = s >> 4;
-	s &= 15;
-	if (s) {
-	  k += r;
-	  CHECK_BIT_BUFFER(br_state, s, return FALSE);
-	  r = GET_BITS(s);
-	  s = HUFF_EXTEND(r, s);
-	  /* Scale and output coefficient in natural (dezigzagged) order */
-	  (*block)[jpeg_natural_order[k]] = (JCOEF) (s << Al);
-	} else {
-	  if (r == 15) {	/* ZRL */
-	    k += 15;		/* skip 15 zeroes in band */
-	  } else {		/* EOBr, run length is 2^r + appended bits */
-	    EOBRUN = 1 << r;
-	    if (r) {		/* EOBr, r > 0 */
-	      CHECK_BIT_BUFFER(br_state, r, return FALSE);
-	      r = GET_BITS(r);
-	      EOBRUN += r;
-	    }
-	    EOBRUN--;		/* this band is processed at this moment */
-	    break;		/* force end-of-band */
-	  }
-	}
+        HUFF_DECODE(s, br_state, tbl, return FALSE, label2);
+        r = s >> 4;
+        s &= 15;
+        if (s) {
+          k += r;
+          CHECK_BIT_BUFFER(br_state, s, return FALSE);
+          r = GET_BITS(s);
+          s = HUFF_EXTEND(r, s);
+          /* Scale and output coefficient in natural (dezigzagged) order */
+          (*block)[jpeg_natural_order[k]] = (JCOEF) (s << Al);
+        } else {
+          if (r == 15) {        /* ZRL */
+            k += 15;            /* skip 15 zeroes in band */
+          } else {              /* EOBr, run length is 2^r + appended bits */
+            EOBRUN = 1 << r;
+            if (r) {            /* EOBr, r > 0 */
+              CHECK_BIT_BUFFER(br_state, r, return FALSE);
+              r = GET_BITS(r);
+              EOBRUN += r;
+            }
+            EOBRUN--;           /* this band is processed at this moment */
+            break;              /* force end-of-band */
+          }
+        }
       }
 
       BITREAD_SAVE_STATE(cinfo,entropy->bitstate);
     }
 
     /* Completed MCU, so update state */
-    entropy->saved.EOBRUN = EOBRUN;	/* only part of saved state we need */
+    entropy->saved.EOBRUN = EOBRUN;     /* only part of saved state we need */
   }
 
   /* Account for restart interval (no-op if not using restarts) */
@@ -441,9 +441,9 @@ decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
 METHODDEF(boolean)
 decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
-{   
+{
   phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  int p1 = 1 << cinfo->Al;	/* 1 in the bit position being coded */
+  int p1 = 1 << cinfo->Al;      /* 1 in the bit position being coded */
   int blkn;
   JBLOCKROW block;
   BITREAD_STATE_VARS;
@@ -452,7 +452,7 @@ decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   if (cinfo->restart_interval) {
     if (entropy->restarts_to_go == 0)
       if (! process_restart(cinfo))
-	return FALSE;
+        return FALSE;
   }
 
   /* Not worth the cycles to check insufficient_data here,
@@ -490,11 +490,11 @@ decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
 METHODDEF(boolean)
 decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
-{   
+{
   phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
   int Se = cinfo->Se;
-  int p1 = 1 << cinfo->Al;	/* 1 in the bit position being coded */
-  int m1 = (-1) << cinfo->Al;	/* -1 in the bit position being coded */
+  int p1 = 1 << cinfo->Al;      /* 1 in the bit position being coded */
+  int m1 = (-1) << cinfo->Al;   /* -1 in the bit position being coded */
   register int s, k, r;
   unsigned int EOBRUN;
   JBLOCKROW block;
@@ -508,7 +508,7 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   if (cinfo->restart_interval) {
     if (entropy->restarts_to_go == 0)
       if (! process_restart(cinfo))
-	return FALSE;
+        return FALSE;
   }
 
   /* If we've run out of data, don't modify the MCU.
@@ -536,58 +536,58 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
     if (EOBRUN == 0) {
       for (; k <= Se; k++) {
-	HUFF_DECODE(s, br_state, tbl, goto undoit, label3);
-	r = s >> 4;
-	s &= 15;
-	if (s) {
-	  if (s != 1)		/* size of new coef should always be 1 */
-	    WARNMS(cinfo, JWRN_HUFF_BAD_CODE);
-	  CHECK_BIT_BUFFER(br_state, 1, goto undoit);
-	  if (GET_BITS(1))
-	    s = p1;		/* newly nonzero coef is positive */
-	  else
-	    s = m1;		/* newly nonzero coef is negative */
-	} else {
-	  if (r != 15) {
-	    EOBRUN = 1 << r;	/* EOBr, run length is 2^r + appended bits */
-	    if (r) {
-	      CHECK_BIT_BUFFER(br_state, r, goto undoit);
-	      r = GET_BITS(r);
-	      EOBRUN += r;
-	    }
-	    break;		/* rest of block is handled by EOB logic */
-	  }
-	  /* note s = 0 for processing ZRL */
-	}
-	/* Advance over already-nonzero coefs and r still-zero coefs,
-	 * appending correction bits to the nonzeroes.  A correction bit is 1
-	 * if the absolute value of the coefficient must be increased.
-	 */
-	do {
-	  thiscoef = *block + jpeg_natural_order[k];
-	  if (*thiscoef != 0) {
-	    CHECK_BIT_BUFFER(br_state, 1, goto undoit);
-	    if (GET_BITS(1)) {
-	      if ((*thiscoef & p1) == 0) { /* do nothing if already set it */
-		if (*thiscoef >= 0)
-		  *thiscoef += p1;
-		else
-		  *thiscoef += m1;
-	      }
-	    }
-	  } else {
-	    if (--r < 0)
-	      break;		/* reached target zero coefficient */
-	  }
-	  k++;
-	} while (k <= Se);
-	if (s) {
-	  int pos = jpeg_natural_order[k];
-	  /* Output newly nonzero coefficient */
-	  (*block)[pos] = (JCOEF) s;
-	  /* Remember its position in case we have to suspend */
-	  newnz_pos[num_newnz++] = pos;
-	}
+        HUFF_DECODE(s, br_state, tbl, goto undoit, label3);
+        r = s >> 4;
+        s &= 15;
+        if (s) {
+          if (s != 1)           /* size of new coef should always be 1 */
+            WARNMS(cinfo, JWRN_HUFF_BAD_CODE);
+          CHECK_BIT_BUFFER(br_state, 1, goto undoit);
+          if (GET_BITS(1))
+            s = p1;             /* newly nonzero coef is positive */
+          else
+            s = m1;             /* newly nonzero coef is negative */
+        } else {
+          if (r != 15) {
+            EOBRUN = 1 << r;    /* EOBr, run length is 2^r + appended bits */
+            if (r) {
+              CHECK_BIT_BUFFER(br_state, r, goto undoit);
+              r = GET_BITS(r);
+              EOBRUN += r;
+            }
+            break;              /* rest of block is handled by EOB logic */
+          }
+          /* note s = 0 for processing ZRL */
+        }
+        /* Advance over already-nonzero coefs and r still-zero coefs,
+         * appending correction bits to the nonzeroes.  A correction bit is 1
+         * if the absolute value of the coefficient must be increased.
+         */
+        do {
+          thiscoef = *block + jpeg_natural_order[k];
+          if (*thiscoef != 0) {
+            CHECK_BIT_BUFFER(br_state, 1, goto undoit);
+            if (GET_BITS(1)) {
+              if ((*thiscoef & p1) == 0) { /* do nothing if already set it */
+                if (*thiscoef >= 0)
+                  *thiscoef += p1;
+                else
+                  *thiscoef += m1;
+              }
+            }
+          } else {
+            if (--r < 0)
+              break;            /* reached target zero coefficient */
+          }
+          k++;
+        } while (k <= Se);
+        if (s) {
+          int pos = jpeg_natural_order[k];
+          /* Output newly nonzero coefficient */
+          (*block)[pos] = (JCOEF) s;
+          /* Remember its position in case we have to suspend */
+          newnz_pos[num_newnz++] = pos;
+        }
       }
     }
 
@@ -598,18 +598,18 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
        * if the absolute value of the coefficient must be increased.
        */
       for (; k <= Se; k++) {
-	thiscoef = *block + jpeg_natural_order[k];
-	if (*thiscoef != 0) {
-	  CHECK_BIT_BUFFER(br_state, 1, goto undoit);
-	  if (GET_BITS(1)) {
-	    if ((*thiscoef & p1) == 0) { /* do nothing if already changed it */
-	      if (*thiscoef >= 0)
-		*thiscoef += p1;
-	      else
-		*thiscoef += m1;
-	    }
-	  }
-	}
+        thiscoef = *block + jpeg_natural_order[k];
+        if (*thiscoef != 0) {
+          CHECK_BIT_BUFFER(br_state, 1, goto undoit);
+          if (GET_BITS(1)) {
+            if ((*thiscoef & p1) == 0) { /* do nothing if already changed it */
+              if (*thiscoef >= 0)
+                *thiscoef += p1;
+              else
+                *thiscoef += m1;
+            }
+          }
+        }
       }
       /* Count one block completed in EOB run */
       EOBRUN--;
@@ -647,7 +647,7 @@ jinit_phuff_decoder (j_decompress_ptr cinfo)
 
   entropy = (phuff_entropy_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(phuff_entropy_decoder));
+                                SIZEOF(phuff_entropy_decoder));
   cinfo->entropy = (struct jpeg_entropy_decoder *) entropy;
   entropy->pub.start_pass = start_pass_phuff_decoder;
 
@@ -659,9 +659,9 @@ jinit_phuff_decoder (j_decompress_ptr cinfo)
   /* Create progression status table */
   cinfo->coef_bits = (int (*)[DCTSIZE2])
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				cinfo->num_components*DCTSIZE2*SIZEOF(int));
+                                cinfo->num_components*DCTSIZE2*SIZEOF(int));
   coef_bit_ptr = & cinfo->coef_bits[0][0];
-  for (ci = 0; ci < cinfo->num_components; ci++) 
+  for (ci = 0; ci < cinfo->num_components; ci++)
     for (i = 0; i < DCTSIZE2; i++)
       *coef_bit_ptr++ = -1;
 }