diff options
Diffstat (limited to 'media/libstagefright/codecs/amrwbenc/inc/basic_op.h')
| -rw-r--r-- | media/libstagefright/codecs/amrwbenc/inc/basic_op.h | 656 |
1 files changed, 330 insertions, 326 deletions
diff --git a/media/libstagefright/codecs/amrwbenc/inc/basic_op.h b/media/libstagefright/codecs/amrwbenc/inc/basic_op.h index f42a27c..d36f455 100644 --- a/media/libstagefright/codecs/amrwbenc/inc/basic_op.h +++ b/media/libstagefright/codecs/amrwbenc/inc/basic_op.h @@ -25,8 +25,8 @@ #define MAX_32 (Word32)0x7fffffffL #define MIN_32 (Word32)0x80000000L -#define MAX_16 (Word16)+32767 /* 0x7fff */ -#define MIN_16 (Word16)-32768 /* 0x8000 */ +#define MAX_16 (Word16)+32767 /* 0x7fff */ +#define MIN_16 (Word16)-32768 /* 0x8000 */ #define static_vo static __inline @@ -41,22 +41,22 @@ #define L_negate(L_var1) (((L_var1) == (MIN_32)) ? (MAX_32) : (-(L_var1))) /* Long negate, 2*/ -#define extract_h(a) ((Word16)(a >> 16)) -#define extract_l(x) (Word16)((x)) -#define add1(a,b) (a + b) -#define vo_L_msu(a,b,c) ( a - (( b * c ) << 1) ) +#define extract_h(a) ((Word16)(a >> 16)) +#define extract_l(x) (Word16)((x)) +#define add1(a,b) (a + b) +#define vo_L_msu(a,b,c) ( a - (( b * c ) << 1) ) #define vo_mult32(a, b) ((a) * (b)) -#define vo_mult(a,b) (( a * b ) >> 15 ) -#define vo_L_mult(a,b) (((a) * (b)) << 1) -#define vo_shr_r(var1, var2) ((var1+((Word16)(1L<<(var2-1))))>>var2) -#define vo_sub(a,b) (a - b) -#define vo_L_deposit_h(a) ((Word32)((a) << 16)) -#define vo_round(a) ((a + 0x00008000) >> 16) -#define vo_extract_l(a) ((Word16)(a)) -#define vo_L_add(a,b) (a + b) -#define vo_L_sub(a,b) (a - b) -#define vo_mult_r(a,b) ((( a * b ) + 0x4000 ) >> 15 ) -#define vo_negate(a) (-a) +#define vo_mult(a,b) (( a * b ) >> 15 ) +#define vo_L_mult(a,b) (((a) * (b)) << 1) +#define vo_shr_r(var1, var2) ((var1+((Word16)(1L<<(var2-1))))>>var2) +#define vo_sub(a,b) (a - b) +#define vo_L_deposit_h(a) ((Word32)((a) << 16)) +#define vo_round(a) ((a + 0x00008000) >> 16) +#define vo_extract_l(a) ((Word16)(a)) +#define vo_L_add(a,b) (a + b) +#define vo_L_sub(a,b) (a - b) +#define vo_mult_r(a,b) ((( a * b ) + 0x4000 ) >> 15 ) +#define vo_negate(a) (-a) #define vo_L_shr_r(L_var1, var2) ((L_var1+((Word32)(1L<<(var2-1))))>>var2) @@ -65,25 +65,25 @@ | Prototypes for basic arithmetic operators | |___________________________________________________________________________| */ -static_vo Word16 add (Word16 var1, Word16 var2); /* Short add,1 */ -static_vo Word16 sub (Word16 var1, Word16 var2); /* Short sub,1 */ +static_vo Word16 add (Word16 var1, Word16 var2); /* Short add,1 */ +static_vo Word16 sub (Word16 var1, Word16 var2); /* Short sub,1 */ static_vo Word16 shl (Word16 var1, Word16 var2); /* Short shift left, 1 */ static_vo Word16 shr (Word16 var1, Word16 var2); /* Short shift right, 1 */ static_vo Word16 mult (Word16 var1, Word16 var2); /* Short mult, 1 */ static_vo Word32 L_mult (Word16 var1, Word16 var2); /* Long mult, 1 */ static_vo Word16 voround (Word32 L_var1); /* Round, 1 */ -static_vo Word32 L_mac (Word32 L_var3, Word16 var1, Word16 var2); /* Mac, 1 */ -static_vo Word32 L_msu (Word32 L_var3, Word16 var1, Word16 var2); /* Msu, 1 */ -static_vo Word32 L_add (Word32 L_var1, Word32 L_var2); /* Long add, 2 */ -static_vo Word32 L_sub (Word32 L_var1, Word32 L_var2); /* Long sub, 2 */ -static_vo Word16 mult_r (Word16 var1, Word16 var2); /* Mult with round, 2 */ -static_vo Word32 L_shl2(Word32 L_var1, Word16 var2); /* var2 > 0*/ -static_vo Word32 L_shl (Word32 L_var1, Word16 var2); /* Long shift left, 2 */ -static_vo Word32 L_shr (Word32 L_var1, Word16 var2); /* Long shift right, 2*/ -static_vo Word32 L_shr_r (Word32 L_var1, Word16 var2); /* Long shift right with round, 3 */ -static_vo Word16 norm_s (Word16 var1); /* Short norm, 15 */ -static_vo Word16 div_s (Word16 var1, Word16 var2); /* Short division, 18 */ -static_vo Word16 norm_l (Word32 L_var1); /* Long norm, 30 */ +static_vo Word32 L_mac (Word32 L_var3, Word16 var1, Word16 var2); /* Mac, 1 */ +static_vo Word32 L_msu (Word32 L_var3, Word16 var1, Word16 var2); /* Msu, 1 */ +static_vo Word32 L_add (Word32 L_var1, Word32 L_var2); /* Long add, 2 */ +static_vo Word32 L_sub (Word32 L_var1, Word32 L_var2); /* Long sub, 2 */ +static_vo Word16 mult_r (Word16 var1, Word16 var2); /* Mult with round, 2 */ +static_vo Word32 L_shl2(Word32 L_var1, Word16 var2); /* var2 > 0*/ +static_vo Word32 L_shl (Word32 L_var1, Word16 var2); /* Long shift left, 2 */ +static_vo Word32 L_shr (Word32 L_var1, Word16 var2); /* Long shift right, 2*/ +static_vo Word32 L_shr_r (Word32 L_var1, Word16 var2); /* Long shift right with round, 3 */ +static_vo Word16 norm_s (Word16 var1); /* Short norm, 15 */ +static_vo Word16 div_s (Word16 var1, Word16 var2); /* Short division, 18 */ +static_vo Word16 norm_l (Word32 L_var1); /* Long norm, 30 */ /*___________________________________________________________________________ | | @@ -125,11 +125,11 @@ static_vo Word16 norm_l (Word32 L_var1); /* Long norm, */ static_vo Word16 add (Word16 var1, Word16 var2) { - Word16 var_out; - Word32 L_sum; - L_sum = (Word32) var1 + var2; - var_out = saturate (L_sum); - return (var_out); + Word16 var_out; + Word32 L_sum; + L_sum = (Word32) var1 + var2; + var_out = saturate (L_sum); + return (var_out); } /*___________________________________________________________________________ @@ -168,11 +168,11 @@ static_vo Word16 add (Word16 var1, Word16 var2) static_vo Word16 sub (Word16 var1, Word16 var2) { - Word16 var_out; - Word32 L_diff; - L_diff = (Word32) var1 - var2; - var_out = saturate (L_diff); - return (var_out); + Word16 var_out; + Word32 L_diff; + L_diff = (Word32) var1 - var2; + var_out = saturate (L_diff); + return (var_out); } /*___________________________________________________________________________ @@ -212,27 +212,31 @@ static_vo Word16 sub (Word16 var1, Word16 var2) static_vo Word16 shl (Word16 var1, Word16 var2) { - Word16 var_out; - Word32 result; - if (var2 < 0) - { - if (var2 < -16) - var2 = -16; - var_out = var1 >> ((Word16)-var2); - } - else - { - result = (Word32) var1 *((Word32) 1 << var2); - if ((var2 > 15 && var1 != 0) || (result != (Word32) ((Word16) result))) - { - var_out = (Word16)((var1 > 0) ? MAX_16 : MIN_16); - } - else - { - var_out = extract_l (result); - } - } - return (var_out); + Word16 var_out; + Word32 result; + if (var2 < 0) + { + if (var2 < -16) + var2 = -16; + var_out = var1 >> ((Word16)-var2); + } + else + { + if (var2 > 15 && var1 != 0) + { + var_out = (Word16)((var1 > 0) ? MAX_16 : MIN_16); + } + else + { + result = (Word32) var1 *((Word32) 1 << var2); + if ((result != (Word32) ((Word16) result))) { + var_out = (Word16)((var1 > 0) ? MAX_16 : MIN_16); + } else { + var_out = extract_l (result); + } + } + } + return (var_out); } /*___________________________________________________________________________ @@ -272,32 +276,32 @@ static_vo Word16 shl (Word16 var1, Word16 var2) static_vo Word16 shr (Word16 var1, Word16 var2) { - Word16 var_out; - if (var2 < 0) - { - if (var2 < -16) - var2 = -16; - var_out = shl(var1, (Word16)-var2); - } - else - { - if (var2 >= 15) - { - var_out = (Word16)((var1 < 0) ? -1 : 0); - } - else - { - if (var1 < 0) - { - var_out = (Word16)(~((~var1) >> var2)); - } - else - { - var_out = (Word16)(var1 >> var2); - } - } - } - return (var_out); + Word16 var_out; + if (var2 < 0) + { + if (var2 < -16) + var2 = -16; + var_out = shl(var1, (Word16)-var2); + } + else + { + if (var2 >= 15) + { + var_out = (Word16)((var1 < 0) ? -1 : 0); + } + else + { + if (var1 < 0) + { + var_out = (Word16)(~((~var1) >> var2)); + } + else + { + var_out = (Word16)(var1 >> var2); + } + } + } + return (var_out); } /*___________________________________________________________________________ @@ -337,14 +341,14 @@ static_vo Word16 shr (Word16 var1, Word16 var2) static_vo Word16 mult (Word16 var1, Word16 var2) { - Word16 var_out; - Word32 L_product; - L_product = (Word32) var1 *(Word32) var2; - L_product = (L_product & (Word32) 0xffff8000L) >> 15; - if (L_product & (Word32) 0x00010000L) - L_product = L_product | (Word32) 0xffff0000L; - var_out = saturate (L_product); - return (var_out); + Word16 var_out; + Word32 L_product; + L_product = (Word32) var1 *(Word32) var2; + L_product = (L_product & (Word32) 0xffff8000L) >> 15; + if (L_product & (Word32) 0x00010000L) + L_product = L_product | (Word32) 0xffff0000L; + var_out = saturate (L_product); + return (var_out); } /*___________________________________________________________________________ @@ -384,17 +388,17 @@ static_vo Word16 mult (Word16 var1, Word16 var2) static_vo Word32 L_mult (Word16 var1, Word16 var2) { - Word32 L_var_out; - L_var_out = (Word32) var1 *(Word32) var2; - if (L_var_out != (Word32) 0x40000000L) - { - L_var_out *= 2; - } - else - { - L_var_out = MAX_32; - } - return (L_var_out); + Word32 L_var_out; + L_var_out = (Word32) var1 *(Word32) var2; + if (L_var_out != (Word32) 0x40000000L) + { + L_var_out *= 2; + } + else + { + L_var_out = MAX_32; + } + return (L_var_out); } /*___________________________________________________________________________ @@ -430,11 +434,11 @@ static_vo Word32 L_mult (Word16 var1, Word16 var2) static_vo Word16 voround (Word32 L_var1) { - Word16 var_out; - Word32 L_rounded; - L_rounded = L_add (L_var1, (Word32) 0x00008000L); - var_out = extract_h (L_rounded); - return (var_out); + Word16 var_out; + Word32 L_rounded; + L_rounded = L_add (L_var1, (Word32) 0x00008000L); + var_out = extract_h (L_rounded); + return (var_out); } /*___________________________________________________________________________ @@ -476,11 +480,11 @@ static_vo Word16 voround (Word32 L_var1) static_vo Word32 L_mac (Word32 L_var3, Word16 var1, Word16 var2) { - Word32 L_var_out; - Word32 L_product; - L_product = ((var1 * var2) << 1); - L_var_out = L_add (L_var3, L_product); - return (L_var_out); + Word32 L_var_out; + Word32 L_product; + L_product = ((var1 * var2) << 1); + L_var_out = L_add (L_var3, L_product); + return (L_var_out); } /*___________________________________________________________________________ @@ -522,11 +526,11 @@ static_vo Word32 L_mac (Word32 L_var3, Word16 var1, Word16 var2) static_vo Word32 L_msu (Word32 L_var3, Word16 var1, Word16 var2) { - Word32 L_var_out; - Word32 L_product; - L_product = (var1 * var2)<<1; - L_var_out = L_sub (L_var3, L_product); - return (L_var_out); + Word32 L_var_out; + Word32 L_product; + L_product = (var1 * var2)<<1; + L_var_out = L_sub (L_var3, L_product); + return (L_var_out); } /*___________________________________________________________________________ @@ -563,16 +567,16 @@ static_vo Word32 L_msu (Word32 L_var3, Word16 var1, Word16 var2) static_vo Word32 L_add (Word32 L_var1, Word32 L_var2) { - Word32 L_var_out; - L_var_out = L_var1 + L_var2; - if (((L_var1 ^ L_var2) & MIN_32) == 0) - { - if ((L_var_out ^ L_var1) & MIN_32) - { - L_var_out = (L_var1 < 0) ? MIN_32 : MAX_32; - } - } - return (L_var_out); + Word32 L_var_out; + L_var_out = L_var1 + L_var2; + if (((L_var1 ^ L_var2) & MIN_32) == 0) + { + if ((L_var_out ^ L_var1) & MIN_32) + { + L_var_out = (L_var1 < 0) ? MIN_32 : MAX_32; + } + } + return (L_var_out); } /*___________________________________________________________________________ @@ -609,16 +613,16 @@ static_vo Word32 L_add (Word32 L_var1, Word32 L_var2) static_vo Word32 L_sub (Word32 L_var1, Word32 L_var2) { - Word32 L_var_out; - L_var_out = L_var1 - L_var2; - if (((L_var1 ^ L_var2) & MIN_32) != 0) - { - if ((L_var_out ^ L_var1) & MIN_32) - { - L_var_out = (L_var1 < 0L) ? MIN_32 : MAX_32; - } - } - return (L_var_out); + Word32 L_var_out; + L_var_out = L_var1 - L_var2; + if (((L_var1 ^ L_var2) & MIN_32) != 0) + { + if ((L_var_out ^ L_var1) & MIN_32) + { + L_var_out = (L_var1 < 0L) ? MIN_32 : MAX_32; + } + } + return (L_var_out); } @@ -658,18 +662,18 @@ static_vo Word32 L_sub (Word32 L_var1, Word32 L_var2) static_vo Word16 mult_r (Word16 var1, Word16 var2) { - Word16 var_out; - Word32 L_product_arr; - L_product_arr = (Word32) var1 *(Word32) var2; /* product */ - L_product_arr += (Word32) 0x00004000L; /* round */ - L_product_arr &= (Word32) 0xffff8000L; - L_product_arr >>= 15; /* shift */ - if (L_product_arr & (Word32) 0x00010000L) /* sign extend when necessary */ - { - L_product_arr |= (Word32) 0xffff0000L; - } - var_out = saturate (L_product_arr); - return (var_out); + Word16 var_out; + Word32 L_product_arr; + L_product_arr = (Word32) var1 *(Word32) var2; /* product */ + L_product_arr += (Word32) 0x00004000L; /* round */ + L_product_arr &= (Word32) 0xffff8000L; + L_product_arr >>= 15; /* shift */ + if (L_product_arr & (Word32) 0x00010000L) /* sign extend when necessary */ + { + L_product_arr |= (Word32) 0xffff0000L; + } + var_out = saturate (L_product_arr); + return (var_out); } /*___________________________________________________________________________ @@ -708,61 +712,61 @@ static_vo Word16 mult_r (Word16 var1, Word16 var2) static_vo Word32 L_shl (Word32 L_var1, Word16 var2) { - Word32 L_var_out = 0L; - if (var2 <= 0) - { - if (var2 < -32) - var2 = -32; - L_var_out = (L_var1 >> (Word16)-var2); - } - else - { - for (; var2 > 0; var2--) - { - if (L_var1 > (Word32) 0X3fffffffL) - { - L_var_out = MAX_32; - break; - } - else - { - if (L_var1 < (Word32) 0xc0000000L) - { - //Overflow = 1; - L_var_out = MIN_32; - break; - } - } - L_var1 *= 2; - L_var_out = L_var1; - } - } - return (L_var_out); + Word32 L_var_out = 0L; + if (var2 <= 0) + { + if (var2 < -32) + var2 = -32; + L_var_out = (L_var1 >> (Word16)-var2); + } + else + { + for (; var2 > 0; var2--) + { + if (L_var1 > (Word32) 0X3fffffffL) + { + L_var_out = MAX_32; + break; + } + else + { + if (L_var1 < (Word32) 0xc0000000L) + { + //Overflow = 1; + L_var_out = MIN_32; + break; + } + } + L_var1 *= 2; + L_var_out = L_var1; + } + } + return (L_var_out); } static_vo Word32 L_shl2(Word32 L_var1, Word16 var2) { - Word32 L_var_out = 0L; + Word32 L_var_out = 0L; - for (; var2 > 0; var2--) - { - if (L_var1 > (Word32) 0X3fffffffL) - { - L_var_out = MAX_32; - break; - } - else - { - if (L_var1 < (Word32) 0xc0000000L) - { - L_var_out = MIN_32; - break; - } - } - L_var1 <<=1 ; - L_var_out = L_var1; - } - return (L_var_out); + for (; var2 > 0; var2--) + { + if (L_var1 > (Word32) 0X3fffffffL) + { + L_var_out = MAX_32; + break; + } + else + { + if (L_var1 < (Word32) 0xc0000000L) + { + L_var_out = MIN_32; + break; + } + } + L_var1 <<=1 ; + L_var_out = L_var1; + } + return (L_var_out); } /*___________________________________________________________________________ @@ -801,32 +805,32 @@ static_vo Word32 L_shl2(Word32 L_var1, Word16 var2) static_vo Word32 L_shr (Word32 L_var1, Word16 var2) { - Word32 L_var_out; - if (var2 < 0) - { - if (var2 < -32) - var2 = -32; - L_var_out = L_shl2(L_var1, (Word16)-var2); - } - else - { - if (var2 >= 31) - { - L_var_out = (L_var1 < 0L) ? -1 : 0; - } - else - { - if (L_var1 < 0) - { - L_var_out = ~((~L_var1) >> var2); - } - else - { - L_var_out = L_var1 >> var2; - } - } - } - return (L_var_out); + Word32 L_var_out; + if (var2 < 0) + { + if (var2 < -32) + var2 = -32; + L_var_out = L_shl2(L_var1, (Word16)-var2); + } + else + { + if (var2 >= 31) + { + L_var_out = (L_var1 < 0L) ? -1 : 0; + } + else + { + if (L_var1 < 0) + { + L_var_out = ~((~L_var1) >> var2); + } + else + { + L_var_out = L_var1 >> var2; + } + } + } + return (L_var_out); } /*___________________________________________________________________________ @@ -873,23 +877,23 @@ static_vo Word32 L_shr (Word32 L_var1, Word16 var2) static_vo Word32 L_shr_r (Word32 L_var1, Word16 var2) { - Word32 L_var_out; - if (var2 > 31) - { - L_var_out = 0; - } - else - { - L_var_out = L_shr (L_var1, var2); - if (var2 > 0) - { - if ((L_var1 & ((Word32) 1 << (var2 - 1))) != 0) - { - L_var_out++; - } - } - } - return (L_var_out); + Word32 L_var_out; + if (var2 > 31) + { + L_var_out = 0; + } + else + { + L_var_out = L_shr (L_var1, var2); + if (var2 > 0) + { + if ((L_var1 & ((Word32) 1 << (var2 - 1))) != 0) + { + L_var_out++; + } + } + } + return (L_var_out); } /*___________________________________________________________________________ @@ -927,30 +931,30 @@ static_vo Word32 L_shr_r (Word32 L_var1, Word16 var2) static_vo Word16 norm_s (Word16 var1) { - Word16 var_out = 0; - if (var1 == 0) - { - var_out = 0; - } - else - { - if (var1 == -1) - { - var_out = 15; - } - else - { - if (var1 < 0) - { - var1 = (Word16)~var1; - } - for (var_out = 0; var1 < 0x4000; var_out++) - { - var1 <<= 1; - } - } - } - return (var_out); + Word16 var_out = 0; + if (var1 == 0) + { + var_out = 0; + } + else + { + if (var1 == -1) + { + var_out = 15; + } + else + { + if (var1 < 0) + { + var1 = (Word16)~var1; + } + for (var_out = 0; var1 < 0x4000; var_out++) + { + var1 <<= 1; + } + } + } + return (var_out); } /*___________________________________________________________________________ @@ -992,47 +996,47 @@ static_vo Word16 norm_s (Word16 var1) static_vo Word16 div_s (Word16 var1, Word16 var2) { - Word16 var_out = 0; - Word16 iteration; - Word32 L_num; - Word32 L_denom; - if ((var1 < 0) || (var2 < 0)) - { - var_out = MAX_16; - return var_out; - } - if (var2 == 0) - { - var_out = MAX_16; - return var_out; - } - if (var1 == 0) - { - var_out = 0; - } - else - { - if (var1 == var2) - { - var_out = MAX_16; - } - else - { - L_num = L_deposit_l (var1); - L_denom = L_deposit_l(var2); - for (iteration = 0; iteration < 15; iteration++) - { - var_out <<= 1; - L_num <<= 1; - if (L_num >= L_denom) - { - L_num -= L_denom; - var_out += 1; - } - } - } - } - return (var_out); + Word16 var_out = 0; + Word16 iteration; + Word32 L_num; + Word32 L_denom; + if ((var1 < 0) || (var2 < 0)) + { + var_out = MAX_16; + return var_out; + } + if (var2 == 0) + { + var_out = MAX_16; + return var_out; + } + if (var1 == 0) + { + var_out = 0; + } + else + { + if (var1 == var2) + { + var_out = MAX_16; + } + else + { + L_num = L_deposit_l (var1); + L_denom = L_deposit_l(var2); + for (iteration = 0; iteration < 15; iteration++) + { + var_out <<= 1; + L_num <<= 1; + if (L_num >= L_denom) + { + L_num -= L_denom; + var_out += 1; + } + } + } + } + return (var_out); } /*___________________________________________________________________________ @@ -1070,20 +1074,20 @@ static_vo Word16 div_s (Word16 var1, Word16 var2) static_vo Word16 norm_l (Word32 L_var1) { - Word16 var_out = 0; - if (L_var1 != 0) - { - var_out = 31; - if (L_var1 != (Word32) 0xffffffffL) - { - L_var1 ^= (L_var1 >>31); - for (var_out = 0; L_var1 < (Word32) 0x40000000L; var_out++) - { - L_var1 <<= 1; - } - } - } - return (var_out); + Word16 var_out = 0; + if (L_var1 != 0) + { + var_out = 31; + if (L_var1 != (Word32) 0xffffffffL) + { + L_var1 ^= (L_var1 >>31); + for (var_out = 0; L_var1 < (Word32) 0x40000000L; var_out++) + { + L_var1 <<= 1; + } + } + } + return (var_out); } #endif //__BASIC_OP_H__ |