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, 89 insertions, 89 deletions

diff --git a/jccoefct.c b/jccoefct.c
index 1963ddb..ffc9b7e 100644
--- a/jccoefct.c
+++ b/jccoefct.c
@@ -34,10 +34,10 @@
 typedef struct {
   struct jpeg_c_coef_controller pub; /* public fields */
 
-  JDIMENSION iMCU_row_num;	/* iMCU row # within image */
-  JDIMENSION mcu_ctr;		/* counts MCUs processed in current row */
-  int MCU_vert_offset;		/* counts MCU rows within iMCU row */
-  int MCU_rows_per_iMCU_row;	/* number of such rows needed */
+  JDIMENSION iMCU_row_num;      /* iMCU row # within image */
+  JDIMENSION mcu_ctr;           /* counts MCUs processed in current row */
+  int MCU_vert_offset;          /* counts MCU rows within iMCU row */
+  int MCU_rows_per_iMCU_row;    /* number of such rows needed */
 
   /* For single-pass compression, it's sufficient to buffer just one MCU
    * (although this may prove a bit slow in practice).  We allocate a
@@ -143,7 +143,7 @@ METHODDEF(boolean)
 compress_data (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
 {
   my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-  JDIMENSION MCU_col_num;	/* index of current MCU within row */
+  JDIMENSION MCU_col_num;       /* index of current MCU within row */
   JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1;
   JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
   int blkn, bi, ci, yindex, yoffset, blockcnt;
@@ -154,7 +154,7 @@ compress_data (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
   for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row;
        yoffset++) {
     for (MCU_col_num = coef->mcu_ctr; MCU_col_num <= last_MCU_col;
-	 MCU_col_num++) {
+         MCU_col_num++) {
       /* Determine where data comes from in input_buf and do the DCT thing.
        * Each call on forward_DCT processes a horizontal row of DCT blocks
        * as wide as an MCU; we rely on having allocated the MCU_buffer[] blocks
@@ -166,46 +166,46 @@ compress_data (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
        */
       blkn = 0;
       for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-	compptr = cinfo->cur_comp_info[ci];
-	blockcnt = (MCU_col_num < last_MCU_col) ? compptr->MCU_width
-						: compptr->last_col_width;
-	xpos = MCU_col_num * compptr->MCU_sample_width;
-	ypos = yoffset * DCTSIZE; /* ypos == (yoffset+yindex) * DCTSIZE */
-	for (yindex = 0; yindex < compptr->MCU_height; yindex++) {
-	  if (coef->iMCU_row_num < last_iMCU_row ||
-	      yoffset+yindex < compptr->last_row_height) {
-	    (*cinfo->fdct->forward_DCT) (cinfo, compptr,
-					 input_buf[compptr->component_index],
-					 coef->MCU_buffer[blkn],
-					 ypos, xpos, (JDIMENSION) blockcnt);
-	    if (blockcnt < compptr->MCU_width) {
-	      /* Create some dummy blocks at the right edge of the image. */
-	      jzero_far((void FAR *) coef->MCU_buffer[blkn + blockcnt],
-			(compptr->MCU_width - blockcnt) * SIZEOF(JBLOCK));
-	      for (bi = blockcnt; bi < compptr->MCU_width; bi++) {
-		coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn+bi-1][0][0];
-	      }
-	    }
-	  } else {
-	    /* Create a row of dummy blocks at the bottom of the image. */
-	    jzero_far((void FAR *) coef->MCU_buffer[blkn],
-		      compptr->MCU_width * SIZEOF(JBLOCK));
-	    for (bi = 0; bi < compptr->MCU_width; bi++) {
-	      coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn-1][0][0];
-	    }
-	  }
-	  blkn += compptr->MCU_width;
-	  ypos += DCTSIZE;
-	}
+        compptr = cinfo->cur_comp_info[ci];
+        blockcnt = (MCU_col_num < last_MCU_col) ? compptr->MCU_width
+                                                : compptr->last_col_width;
+        xpos = MCU_col_num * compptr->MCU_sample_width;
+        ypos = yoffset * DCTSIZE; /* ypos == (yoffset+yindex) * DCTSIZE */
+        for (yindex = 0; yindex < compptr->MCU_height; yindex++) {
+          if (coef->iMCU_row_num < last_iMCU_row ||
+              yoffset+yindex < compptr->last_row_height) {
+            (*cinfo->fdct->forward_DCT) (cinfo, compptr,
+                                         input_buf[compptr->component_index],
+                                         coef->MCU_buffer[blkn],
+                                         ypos, xpos, (JDIMENSION) blockcnt);
+            if (blockcnt < compptr->MCU_width) {
+              /* Create some dummy blocks at the right edge of the image. */
+              jzero_far((void FAR *) coef->MCU_buffer[blkn + blockcnt],
+                        (compptr->MCU_width - blockcnt) * SIZEOF(JBLOCK));
+              for (bi = blockcnt; bi < compptr->MCU_width; bi++) {
+                coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn+bi-1][0][0];
+              }
+            }
+          } else {
+            /* Create a row of dummy blocks at the bottom of the image. */
+            jzero_far((void FAR *) coef->MCU_buffer[blkn],
+                      compptr->MCU_width * SIZEOF(JBLOCK));
+            for (bi = 0; bi < compptr->MCU_width; bi++) {
+              coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn-1][0][0];
+            }
+          }
+          blkn += compptr->MCU_width;
+          ypos += DCTSIZE;
+        }
       }
       /* Try to write the MCU.  In event of a suspension failure, we will
        * re-DCT the MCU on restart (a bit inefficient, could be fixed...)
        */
       if (! (*cinfo->entropy->encode_mcu) (cinfo, coef->MCU_buffer)) {
-	/* Suspension forced; update state counters and exit */
-	coef->MCU_vert_offset = yoffset;
-	coef->mcu_ctr = MCU_col_num;
-	return FALSE;
+        /* Suspension forced; update state counters and exit */
+        coef->MCU_vert_offset = yoffset;
+        coef->mcu_ctr = MCU_col_num;
+        return FALSE;
       }
     }
     /* Completed an MCU row, but perhaps not an iMCU row */
@@ -280,17 +280,17 @@ compress_first_pass (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
     for (block_row = 0; block_row < block_rows; block_row++) {
       thisblockrow = buffer[block_row];
       (*cinfo->fdct->forward_DCT) (cinfo, compptr,
-				   input_buf[ci], thisblockrow,
-				   (JDIMENSION) (block_row * DCTSIZE),
-				   (JDIMENSION) 0, blocks_across);
+                                   input_buf[ci], thisblockrow,
+                                   (JDIMENSION) (block_row * DCTSIZE),
+                                   (JDIMENSION) 0, blocks_across);
       if (ndummy > 0) {
-	/* Create dummy blocks at the right edge of the image. */
-	thisblockrow += blocks_across; /* => first dummy block */
-	jzero_far((void FAR *) thisblockrow, ndummy * SIZEOF(JBLOCK));
-	lastDC = thisblockrow[-1][0];
-	for (bi = 0; bi < ndummy; bi++) {
-	  thisblockrow[bi][0] = lastDC;
-	}
+        /* Create dummy blocks at the right edge of the image. */
+        thisblockrow += blocks_across; /* => first dummy block */
+        jzero_far((void FAR *) thisblockrow, ndummy * SIZEOF(JBLOCK));
+        lastDC = thisblockrow[-1][0];
+        for (bi = 0; bi < ndummy; bi++) {
+          thisblockrow[bi][0] = lastDC;
+        }
       }
     }
     /* If at end of image, create dummy block rows as needed.
@@ -299,22 +299,22 @@ compress_first_pass (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
      * This squeezes a few more bytes out of the resulting file...
      */
     if (coef->iMCU_row_num == last_iMCU_row) {
-      blocks_across += ndummy;	/* include lower right corner */
+      blocks_across += ndummy;  /* include lower right corner */
       MCUs_across = blocks_across / h_samp_factor;
       for (block_row = block_rows; block_row < compptr->v_samp_factor;
-	   block_row++) {
-	thisblockrow = buffer[block_row];
-	lastblockrow = buffer[block_row-1];
-	jzero_far((void FAR *) thisblockrow,
-		  (size_t) (blocks_across * SIZEOF(JBLOCK)));
-	for (MCUindex = 0; MCUindex < MCUs_across; MCUindex++) {
-	  lastDC = lastblockrow[h_samp_factor-1][0];
-	  for (bi = 0; bi < h_samp_factor; bi++) {
-	    thisblockrow[bi][0] = lastDC;
-	  }
-	  thisblockrow += h_samp_factor; /* advance to next MCU in row */
-	  lastblockrow += h_samp_factor;
-	}
+           block_row++) {
+        thisblockrow = buffer[block_row];
+        lastblockrow = buffer[block_row-1];
+        jzero_far((void FAR *) thisblockrow,
+                  (size_t) (blocks_across * SIZEOF(JBLOCK)));
+        for (MCUindex = 0; MCUindex < MCUs_across; MCUindex++) {
+          lastDC = lastblockrow[h_samp_factor-1][0];
+          for (bi = 0; bi < h_samp_factor; bi++) {
+            thisblockrow[bi][0] = lastDC;
+          }
+          thisblockrow += h_samp_factor; /* advance to next MCU in row */
+          lastblockrow += h_samp_factor;
+        }
       }
     }
   }
@@ -341,7 +341,7 @@ METHODDEF(boolean)
 compress_output (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
 {
   my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-  JDIMENSION MCU_col_num;	/* index of current MCU within row */
+  JDIMENSION MCU_col_num;       /* index of current MCU within row */
   int blkn, ci, xindex, yindex, yoffset;
   JDIMENSION start_col;
   JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN];
@@ -364,25 +364,25 @@ compress_output (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
   for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row;
        yoffset++) {
     for (MCU_col_num = coef->mcu_ctr; MCU_col_num < cinfo->MCUs_per_row;
-	 MCU_col_num++) {
+         MCU_col_num++) {
       /* Construct list of pointers to DCT blocks belonging to this MCU */
-      blkn = 0;			/* index of current DCT block within MCU */
+      blkn = 0;                 /* index of current DCT block within MCU */
       for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-	compptr = cinfo->cur_comp_info[ci];
-	start_col = MCU_col_num * compptr->MCU_width;
-	for (yindex = 0; yindex < compptr->MCU_height; yindex++) {
-	  buffer_ptr = buffer[ci][yindex+yoffset] + start_col;
-	  for (xindex = 0; xindex < compptr->MCU_width; xindex++) {
-	    coef->MCU_buffer[blkn++] = buffer_ptr++;
-	  }
-	}
+        compptr = cinfo->cur_comp_info[ci];
+        start_col = MCU_col_num * compptr->MCU_width;
+        for (yindex = 0; yindex < compptr->MCU_height; yindex++) {
+          buffer_ptr = buffer[ci][yindex+yoffset] + start_col;
+          for (xindex = 0; xindex < compptr->MCU_width; xindex++) {
+            coef->MCU_buffer[blkn++] = buffer_ptr++;
+          }
+        }
       }
       /* Try to write the MCU. */
       if (! (*cinfo->entropy->encode_mcu) (cinfo, coef->MCU_buffer)) {
-	/* Suspension forced; update state counters and exit */
-	coef->MCU_vert_offset = yoffset;
-	coef->mcu_ctr = MCU_col_num;
-	return FALSE;
+        /* Suspension forced; update state counters and exit */
+        coef->MCU_vert_offset = yoffset;
+        coef->mcu_ctr = MCU_col_num;
+        return FALSE;
       }
     }
     /* Completed an MCU row, but perhaps not an iMCU row */
@@ -408,7 +408,7 @@ jinit_c_coef_controller (j_compress_ptr cinfo, boolean need_full_buffer)
 
   coef = (my_coef_ptr)
     (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_coef_controller));
+                                SIZEOF(my_coef_controller));
   cinfo->coef = (struct jpeg_c_coef_controller *) coef;
   coef->pub.start_pass = start_pass_coef;
 
@@ -421,14 +421,14 @@ jinit_c_coef_controller (j_compress_ptr cinfo, boolean need_full_buffer)
     jpeg_component_info *compptr;
 
     for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-	 ci++, compptr++) {
+         ci++, compptr++) {
       coef->whole_image[ci] = (*cinfo->mem->request_virt_barray)
-	((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
-	 (JDIMENSION) jround_up((long) compptr->width_in_blocks,
-				(long) compptr->h_samp_factor),
-	 (JDIMENSION) jround_up((long) compptr->height_in_blocks,
-				(long) compptr->v_samp_factor),
-	 (JDIMENSION) compptr->v_samp_factor);
+        ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
+         (JDIMENSION) jround_up((long) compptr->width_in_blocks,
+                                (long) compptr->h_samp_factor),
+         (JDIMENSION) jround_up((long) compptr->height_in_blocks,
+                                (long) compptr->v_samp_factor),
+         (JDIMENSION) compptr->v_samp_factor);
     }
 #else
     ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
@@ -440,7 +440,7 @@ jinit_c_coef_controller (j_compress_ptr cinfo, boolean need_full_buffer)
 
     buffer = (JBLOCKROW)
       (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK));
+                                  C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK));
     for (i = 0; i < C_MAX_BLOCKS_IN_MCU; i++) {
       coef->MCU_buffer[i] = buffer + i;
     }