Imported Upstream version 2.0.1

[platform/upstream/libjpeg-turbo.git] / jdhuff.h

diff --git a/jdhuff.h b/jdhuff.h
index 87d4465..6a8d90f 100644 (file)
--- a/jdhuff.h
+++ b/jdhuff.h
@@ -43,13 +43,12 @@ typedef struct {
    * if too long.  The next 8 bits of each entry contain the
    * symbol.
    */
-  int lookup[1<<HUFF_LOOKAHEAD];
+  int lookup[1 << HUFF_LOOKAHEAD];
 } d_derived_tbl;
 
 /* Expand a Huffman table definition into the derived format */
-EXTERN(void) jpeg_make_d_derived_tbl
-        (j_decompress_ptr cinfo, boolean isDC, int tblno,
-         d_derived_tbl ** pdtbl);
+EXTERN(void) jpeg_make_d_derived_tbl(j_decompress_ptr cinfo, boolean isDC,
+                                     int tblno, d_derived_tbl **pdtbl);
 
 
 /*
@@ -74,7 +73,7 @@ EXTERN(void) jpeg_make_d_derived_tbl
 #error Cannot determine word size
 #endif
 
-#if SIZEOF_SIZE_T==8 || defined(_WIN64)
+#if SIZEOF_SIZE_T == 8 || defined(_WIN64)
 
 typedef size_t bit_buf_type;            /* type of bit-extraction buffer */
 #define BIT_BUF_SIZE  64                /* size of buffer in bits */
@@ -113,23 +112,23 @@ typedef struct {                /* Bitreading working state within an MCU */
 } bitread_working_state;
 
 /* Macros to declare and load/save bitread local variables. */
-#define BITREAD_STATE_VARS  \
-        register bit_buf_type get_buffer;  \
-        register int bits_left;  \
-        bitread_working_state br_state
-
-#define BITREAD_LOAD_STATE(cinfop,permstate)  \
-        br_state.cinfo = cinfop; \
-        br_state.next_input_byte = cinfop->src->next_input_byte; \
-        br_state.bytes_in_buffer = cinfop->src->bytes_in_buffer; \
-        get_buffer = permstate.get_buffer; \
-        bits_left = permstate.bits_left;
-
-#define BITREAD_SAVE_STATE(cinfop,permstate)  \
-        cinfop->src->next_input_byte = br_state.next_input_byte; \
-        cinfop->src->bytes_in_buffer = br_state.bytes_in_buffer; \
-        permstate.get_buffer = get_buffer; \
-        permstate.bits_left = bits_left
+#define BITREAD_STATE_VARS \
+  register bit_buf_type get_buffer; \
+  register int bits_left; \
+  bitread_working_state br_state
+
+#define BITREAD_LOAD_STATE(cinfop, permstate) \
+  br_state.cinfo = cinfop; \
+  br_state.next_input_byte = cinfop->src->next_input_byte; \
+  br_state.bytes_in_buffer = cinfop->src->bytes_in_buffer; \
+  get_buffer = permstate.get_buffer; \
+  bits_left = permstate.bits_left;
+
+#define BITREAD_SAVE_STATE(cinfop, permstate) \
+  cinfop->src->next_input_byte = br_state.next_input_byte; \
+  cinfop->src->bytes_in_buffer = br_state.bytes_in_buffer; \
+  permstate.get_buffer = get_buffer; \
+  permstate.bits_left = bits_left
 
 /*
  * These macros provide the in-line portion of bit fetching.
@@ -137,7 +136,7 @@ typedef struct {                /* Bitreading working state within an MCU */
  * before using GET_BITS, PEEK_BITS, or DROP_BITS.
  * The variables get_buffer and bits_left are assumed to be locals,
  * but the state struct might not be (jpeg_huff_decode needs this).
- *      CHECK_BIT_BUFFER(state,n,action);
+ *      CHECK_BIT_BUFFER(state, n, action);
  *              Ensure there are N bits in get_buffer; if suspend, take action.
  *      val = GET_BITS(n);
  *              Fetch next N bits.
@@ -149,25 +148,27 @@ typedef struct {                /* Bitreading working state within an MCU */
  * is evaluated multiple times.
  */
 
-#define CHECK_BIT_BUFFER(state,nbits,action) \
-        { if (bits_left < (nbits)) {  \
-            if (! jpeg_fill_bit_buffer(&(state),get_buffer,bits_left,nbits))  \
-              { action; }  \
-            get_buffer = (state).get_buffer; bits_left = (state).bits_left; } }
+#define CHECK_BIT_BUFFER(state, nbits, action) { \
+  if (bits_left < (nbits)) { \
+    if (!jpeg_fill_bit_buffer(&(state), get_buffer, bits_left, nbits)) \
+      { action; } \
+    get_buffer = (state).get_buffer;  bits_left = (state).bits_left; \
+  } \
+}
 
 #define GET_BITS(nbits) \
-        (((int) (get_buffer >> (bits_left -= (nbits)))) & ((1<<(nbits))-1))
+  (((int)(get_buffer >> (bits_left -= (nbits)))) & ((1 << (nbits)) - 1))
 
 #define PEEK_BITS(nbits) \
-        (((int) (get_buffer >> (bits_left -  (nbits)))) & ((1<<(nbits))-1))
+  (((int)(get_buffer >> (bits_left -  (nbits)))) & ((1 << (nbits)) - 1))
 
 #define DROP_BITS(nbits) \
-        (bits_left -= (nbits))
+  (bits_left -= (nbits))
 
 /* Load up the bit buffer to a depth of at least nbits */
-EXTERN(boolean) jpeg_fill_bit_buffer
-        (bitread_working_state *state, register bit_buf_type get_buffer,
-         register int bits_left, int nbits);
+EXTERN(boolean) jpeg_fill_bit_buffer(bitread_working_state *state,
+                                     register bit_buf_type get_buffer,
+                                     register int bits_left, int nbits);
 
 
 /*
@@ -187,13 +188,14 @@ EXTERN(boolean) jpeg_fill_bit_buffer
  * 3. jpeg_huff_decode returns -1 if forced to suspend.
  */
 
-#define HUFF_DECODE(result,state,htbl,failaction,slowlabel) \
-{ register int nb, look; \
+#define HUFF_DECODE(result, state, htbl, failaction, slowlabel) { \
+  register int nb, look; \
   if (bits_left < HUFF_LOOKAHEAD) { \
-    if (! jpeg_fill_bit_buffer(&state,get_buffer,bits_left, 0)) {failaction;} \
-    get_buffer = state.get_buffer; bits_left = state.bits_left; \
+    if (!jpeg_fill_bit_buffer(&state, get_buffer, bits_left, 0)) \
+      { failaction; } \
+    get_buffer = state.get_buffer;  bits_left = state.bits_left; \
     if (bits_left < HUFF_LOOKAHEAD) { \
-      nb = 1; goto slowlabel; \
+      nb = 1;  goto slowlabel; \
     } \
   } \
   look = PEEK_BITS(HUFF_LOOKAHEAD); \
@@ -202,13 +204,14 @@ EXTERN(boolean) jpeg_fill_bit_buffer
     result = htbl->lookup[look] & ((1 << HUFF_LOOKAHEAD) - 1); \
   } else { \
 slowlabel: \
-    if ((result=jpeg_huff_decode(&state,get_buffer,bits_left,htbl,nb)) < 0) \
-        { failaction; } \
-    get_buffer = state.get_buffer; bits_left = state.bits_left; \
+    if ((result = \
+         jpeg_huff_decode(&state, get_buffer, bits_left, htbl, nb)) < 0) \
+      { failaction; } \
+    get_buffer = state.get_buffer;  bits_left = state.bits_left; \
   } \
 }
 
-#define HUFF_DECODE_FAST(s,nb,htbl) \
+#define HUFF_DECODE_FAST(s, nb, htbl) \
   FILL_BIT_BUFFER_FAST; \
   s = PEEK_BITS(HUFF_LOOKAHEAD); \
   s = htbl->lookup[s]; \
@@ -225,10 +228,11 @@ slowlabel: \
       s |= GET_BITS(1); \
       nb++; \
     } \
-    s = htbl->pub->huffval[ (int) (s + htbl->valoffset[nb]) & 0xFF ]; \
+    s = htbl->pub->huffval[(int)(s + htbl->valoffset[nb]) & 0xFF]; \
   }
 
 /* Out-of-line case for Huffman code fetching */
-EXTERN(int) jpeg_huff_decode
-        (bitread_working_state *state, register bit_buf_type get_buffer,
-         register int bits_left, d_derived_tbl *htbl, int min_bits);
+EXTERN(int) jpeg_huff_decode(bitread_working_state *state,
+                             register bit_buf_type get_buffer,
+                             register int bits_left, d_derived_tbl *htbl,
+                             int min_bits);