Lines Matching refs:lg2

3388    unsigned int lg2 = 0;
3399       lg2  = 4, x <<= 4;
3402       lg2 += 2, x <<= 2;
3405       lg2 += 1, x <<= 1;
3408    return (png_int_32)((lg2 << 16) + ((png_8bit_l2[x-128]+32768)>>16));
3444    unsigned int lg2 = 0;
3451       lg2  = 8, x <<= 8;
3454       lg2 += 4, x <<= 4;
3457       lg2 += 2, x <<= 2;
3460       lg2 += 1, x <<= 1;
3465    lg2 <<= 28;
3466    lg2 += (png_8bit_l2[(x>>8)-128]+8) >> 4;
3483       lg2 += ((23591U * (65536U-x)) + (1U << (16+6-12-1))) >> (16+6-12);
3486       lg2 -= ((23499U * (x-65536U)) + (1U << (16+6-12-1))) >> (16+6-12);
3489    return (png_int_32)((lg2 + 2048) >> 12);
3581 png_exp8bit(png_fixed_point lg2)
3584    png_uint_32 x = png_exp(lg2);
3595 png_exp16bit(png_fixed_point lg2)
3598    png_uint_32 x = png_exp(lg2);
3615          png_int_32 lg2 = png_log8bit(value);
3618          if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1))
3638          png_int_32 lg2 = png_log16bit(value);
3641          if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1))